Self-correcting wire and cable extruder

Abstract

The utility model relates to extruder technical field, the utility model provides a kind of electric wire and cable extruder of automatic correction, including extrusion mould body, still including cooling tank, protective cover, first mobile strip, second mobile strip, rack, connecting frame, auxiliary gear, first moving plate, second moving plate, contact roll and adjusting mechanism, cooling tank is installed in the output end of extrusion mould body, protective cover is installed in the outer side of cooling tank.The utility model provides a kind of electric wire and cable extruder of automatic correction, through contact roll, first moving plate, second moving plate and adjusting mechanism mutual cooperation, the automatic correction of the device to offset cable is realized, the number of friction between cable and transmission frame is reduced, solve the technical problem that the device in prior art is difficult to correct extruded electric wire and cable, leading to the electric wire and cable that offset occurs is prone to and transmission frame friction, wear and tear occurs.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to an automatically calibrated wire and cable extruder. Background Technology

[0002] Extruders are a type of plastic machinery that originated in the 18th century. Based on the angle between the material flow direction at the die head and the screw centerline, extruder heads can be divided into right-angle die heads and angled die heads. Screw extruders rely on the pressure and shearing force generated by the rotation of the screw to fully plasticize and uniformly mix the material, which is then formed through a die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and less common multi-screw extruders and screwless extruders.

[0003] In existing technology, plastic granules enter the extruder through the feed inlet and are conveyed to the heating zone by the screw. Electric heating or steam heating softens the plastic raw material to a molten state. When the screw rotates, it performs forced shearing and mixing of the material to ensure uniform heating and avoid processing defects. The plasticized melt is extruded together with the wire core through the die under pressure to form the desired finished wire and cable. However, this device is difficult to correct the extruded wire and cable, which causes the misaligned wire and cable to easily rub against the conveyor frame and wear, thereby reducing the effectiveness of the device. Utility Model Content

[0004] To overcome the above-mentioned defects, the present invention provides an automatically correctable wire and cable extruder, which solves the technical problem in the prior art that the device is difficult to correct the extruded wires and cables, causing the misaligned wires and cables to easily rub against the transmission frame and wear out.

[0005] According to one aspect, at least one embodiment of the present invention provides an automatically calibrated wire and cable extruder, including an extrusion die body, a cooling tank, a protective cover, a first moving strip, a second moving strip, a rack, a connecting frame, an auxiliary gear, a first moving plate, a second moving plate, a contact roller, and an adjustment mechanism; The cooling tank is installed at the output end of the extrusion die body. A protective cover is installed on the outer side of the cooling tank. A first moving strip is slidably connected inside the cooling tank, and a second moving strip is slidably connected inside the cooling tank. Two sets of racks are respectively installed inside the first moving strip and the second moving strip. A connecting frame is installed on the outer side of the cooling tank. An auxiliary gear is rotatably connected inside the connecting frame. The auxiliary gear meshes with the two sets of racks. A first moving plate is installed inside the second moving strip, and a second moving plate is installed inside the first moving strip. Contact rollers are installed inside both the first moving plate and the second moving plate. An adjustment mechanism is provided inside the protective cover.

[0006] In a preferred embodiment of the automatically calibrated wire and cable extruder of this utility model, the adjustment mechanism includes a sensor, a controller, a push rod motor, and a push plate for better adjustment of the cable position. The sensor is installed inside the protective cover, and the controller is installed inside the protective cover. The output end of the sensor is electrically connected to the input end of the controller. The push rod motor is installed inside the protective cover, and its outer surface extends through the cooling tank. The push plate is installed at the output end of the push rod motor, and the output end of the controller is electrically connected to the input end of the push rod motor.

[0007] In a preferred embodiment of the automatically calibrated wire and cable extruder of this utility model, in order to prevent the second moving plate from being difficult to reset, a hydraulic buffer rod is installed inside the protective cover, and the inner end of the hydraulic buffer rod is installed on the outside of the first moving bar.

[0008] In a preferred embodiment of the automatically calibrated wire and cable extruder of this utility model, in order to better cool the cable, a connecting plate is installed on the outer side of the cooling tank, a fixing plate is installed on the inner side of the connecting plate, and an adjusting plate is slidably connected inside the fixing plate.

[0009] In a preferred embodiment of the automatically calibrated wire and cable extruder of this utility model, in order to prevent the adjusting plate from becoming loose during use, an adjusting pin is threaded through the internal threads of the adjusting plate, and the adjusting pin is slidably connected to the connecting plate.

[0010] In a preferred embodiment of the automatically calibrated wire and cable extruder of this utility model, in order to better clamp the cable, a buffer spring is installed on the inner side of the adjusting plate, a buffer plate is installed on the inner end of the buffer spring, and a buffer rod is installed inside the buffer plate.

[0011] In a preferred embodiment of the automatically calibrated wire and cable extruder of this utility model, in order to prevent the buffer rod from being obstructed during its movement, the outer surface of the buffer rod penetrates through the cooling tank, and the outer surface of the buffer rod penetrates through the buffer spring and the adjusting plate respectively.

[0012] In a preferred embodiment of the automatically correctable wire and cable extruder of this utility model, in order to better correct the misaligned cable, a first contact wheel is installed at the inner end of the buffer rod, and the number of the first contact wheels is two sets.

[0013] The beneficial effects of this utility model are as follows: In this invention, the contact roller, the first moving plate, the second moving plate and the adjustment mechanism work together to achieve automatic correction of the offset cable, reduce the number of times the cable rubs against the transmission frame, and prevent wear on the cable surface. By having the auxiliary gear mesh with two sets of racks, the contact rollers located on the inner and outer sides can move simultaneously to block the offset cable and prevent further displacement of the cable. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the combined structure of the intermediate cooling water tank and the limiting pipe of this utility model; Figure 3 This is an exploded view of the structure of the adjustment plate and the buffer spring in this utility model; Figure 4 This is a vertical sectional view of the internal structure of the protective cover in this utility model; Figure 5 This is a vertical cross-sectional view of the internal structure of the protective cover in this utility model from another direction.

[0016] In the diagram: 1. Extrusion die body; 2. Cooling tank; 3. Protective cover; 4. First moving bar; 5. Second moving bar; 6. Rack; 7. Connecting frame; 8. Auxiliary gear; 9. Hydraulic buffer rod; 10. First moving plate; 11. Second moving plate; 12. Contact roller; 13. Sensor; 14. Controller; 15. Push rod motor; 16. Connecting plate; 17. Fixing plate; 18. Adjusting plate; 19. Adjusting pin; 20. Buffer spring; 21. Buffer plate; 22. Buffer rod; 23. First contact wheel; 24. Limiting tube; 25. Limiting rod; 26. Limiting pin; 27. Second contact wheel; 28. Extruder body. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0018] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-5 As shown, it illustrates an automatically calibrated wire and cable extruder according to an embodiment of the present invention, including an extrusion die body 1, a cooling tank 2, a protective cover 3, a first moving bar 4, a second moving bar 5, a rack 6, a connecting frame 7, an auxiliary gear 8, a first moving plate 10, a second moving plate 11, a contact roller 12, and an adjustment mechanism. like Figure 4 and Figure 5 As shown, the cooling tank 2 is installed at the output end of the extrusion die body 1, which is where the melted and mixed plastic granules enter. The extrusion die body 1 needs to be used in conjunction with an external copper wire holder, with one end of the copper wire inserted into the extrusion die body 1 to extrude the molten plastic together to form a cable. A protective cover 3 is installed on the outer side of the cooling tank 2, and a first moving bar 4 is slidably connected inside the cooling tank 2. The outer side of the cooling tank 2 is connected to an inlet pipe and an outlet pipe, which are respectively connected to the output and input ends of an external chiller, allowing the external chiller to circulate the water in the cooling tank 2 to cool the extruded cable. The water level in the cooling tank 2 is always lower than that of the first moving bar. The height of the first moving strip 4 is set to prevent cooling water from flowing out along the gap during the movement of the first moving strip 4. The second moving strip 5 is slidably connected inside the cooling tank 2. Two sets of racks 6 are respectively installed inside the first moving strip 4 and the second moving strip 5. The two sets of racks 6 are located on the upper and lower sides of the auxiliary gear 8, so the moving directions of the two sets of racks 6 are always opposite. A connecting frame 7 is installed on the outer side of the cooling tank 2. An auxiliary gear 8 is rotatably connected inside the connecting frame 7. The auxiliary gear 8 meshes with the two sets of racks 6. The first moving plate 10 is installed inside the second moving strip 5. The second moving plate 11 is installed inside the first moving strip 4. Contact rollers 12 are installed inside both the first moving plate 10 and the second moving plate 11. An adjustment mechanism is provided inside the protective cover 3.

[0024] like Figure 4 and Figure 5 As shown, the adjustment mechanism includes a sensor 13, a controller 14, a push rod motor 15, and a push plate. The sensor 13 is installed inside the protective cover 3. The sensor 13 is a common infrared sensor on the market. The controller 14 is installed inside the protective cover 3. The output end of the sensor 13 is electrically connected to the input end of the controller 14. The push rod motor 15 is installed inside the protective cover 3. The outer surface of the push rod motor 15 penetrates the cooling tank 2. The push plate is installed at the output end of the push rod motor 15. The output end of the controller 14 is electrically connected to the input end of the push rod motor 15. It should be noted that the push rod motor 15, controller 14 and sensor 13 all require an external power supply, and controller 14 is a PLC controller.

[0025] like Figure 4 As shown, a hydraulic buffer rod 9 is installed inside the protective cover 3. The hydraulic buffer rod 9 is a safety mechanism that uses the principle of hydraulic damping to slow down the movement of objects and prevent hard collisions. The inner end of the hydraulic buffer rod 9 is installed on the outside of the first moving bar 4.

[0026] like Figure 2 and Figure 3As shown, a connecting plate 16 is installed on the outer side of the cooling tank 2, and a fixing plate 17 is installed on the inner side of the connecting plate 16. An adjusting plate 18 is slidably connected inside the fixing plate 17. An adjusting pin 19 is threaded through the inside of the adjusting plate 18 and is slidably connected inside the connecting plate 16. A buffer spring 20 is installed on the inner side of the adjusting plate 18. The adjusting plate 18 can compress the buffer spring 20 by moving along the inside of the connecting plate 16. A buffer plate 21 is installed at the inner end of the buffer spring 20. A buffer rod 22 is installed inside the buffer plate 21. The outer surface of the buffer rod 22 penetrates the cooling tank 2 and passes through the buffer spring 20 and the adjusting plate 18 respectively. A first contact wheel 23 is installed at the inner end of the buffer rod 22. There are two sets of first contact wheels 23.

[0027] In this embodiment, as Figure 1 and Figure 2 As shown, a limiting tube 24 is installed on the outer side of the cooling tank 2. A limiting rod 25 passes through the inside of the limiting tube 24. The outer surface of the limiting rod 25 passes through the cooling tank 2. A limiting pin 26 is threaded through the outer surface of the limiting tube 24. One end of the limiting pin 26, which is threaded through the limiting tube 24, abuts against the limiting rod 25. A second contact wheel 27 is installed on the inner end of the limiting rod 25. The input end of the extrusion die body 1 is connected to the extruder body 28. The extruder body 28 consists of a feeding barrel, a screw, a heating sleeve, a transmission component motor, a belt, a pulley, and a discharge port. The discharge port is connected to the input end of the extrusion die body 1. It should be noted that the overall application environment of this device is inside a cable production plant, where a transmission line capable of providing the voltage required by the extruder body 28 can be connected to it.

[0028] Working principle: Feed and adjust the extruder body 28, connect the output end of the extruder body 28 to the input end of the extrusion die body 1, insert one end of the copper wire on the external copper wire placement rack into the interior of the extrusion die body 1 so that the heated plastic can be extruded together with the copper wire, connect the output end and input end of the external chiller to the water inlet pipe and water outlet pipe respectively, so that the water level in the cooling tank 2 is below the first moving bar 4; The limit rod 25 is moved inward along the limit tube 24. The inward movement of the limit rod 25 drives the second contact wheel 27 to move inward. After adjustment, the limit pin 26 is rotated clockwise to press against the limit rod 25, and the adjusting pin 19 is rotated counterclockwise to loosen it. The adjusting plate 18 is moved inward along the connecting plate 16. The adjusting plate 18 moves inward to compress the buffer spring 20 and tighten the buffer spring 20 (reducing the range of motion of the buffer spring 20). After adjustment, the adjusting pin 19 is rotated clockwise to press against the connecting plate 16. As the extruder body 28 operates, the plastic particles inside are melted. As the screw rotates, the melted plastic is pushed into the extrusion die body 1. The copper wire and the liquid plastic are extruded outward along the extrusion die body 1 and enter the cooling tank 2. The extruded cable is rapidly cooled by the water circulating in the external chiller cooling tank 2. The cooled cable passes through the first contact wheel 23, the second contact wheel 27 and the inner side of the inner contact roller 12, and finally winds onto the external take-up reel. When the cable deviates forward, it drives the contact roller 12 (the inner contact roller 12) on the second moving plate 11 at the front to move forward. This causes the second moving plate 11 at the front to move forward along with the inner contact roller 12. The forward movement of the second moving plate 11 at the front drives the first moving bar 4 at the front to move forward. The forward movement of the first moving bar 4 at the front passes through the auxiliary gear 8 at the front, which meshes with the two sets of racks 6 at the front, causing the two sets of racks 6 at the front to move in opposite directions. The forward movement of the first moving bar 4 at the front presses... The hydraulic buffer rod 9 located at the front retracts and approaches the sensor 13 located at the front. The second moving bar 5 located at the front moves backward under the action of the two sets of racks 6 located at the front. The backward movement of the second moving bar 5 located at the front drives the first moving plate 10 located at the front to move backward. The backward movement of the first moving plate 10 located at the front drives the contact roller 12 on its side (the contact roller 12 located on the outer side) to move backward. Finally, the first moving plate 10 located at the front and the second moving plate 11 located at the front are at the same horizontal position, so that the contact roller 12 located at the front blocks the deviated cable. Meanwhile, the sensor 13 located on the front side transmits an electrical signal to the controller 14 located on the front side. The controller 14 located on the front side controls the push rod motor 15 located on the front side to start. The output end of the push rod motor 15 located on the front side moves backward, driving the push plate located on the front side to move backward. The push plate located on the front side moves backward, moving the cable to the middle of the cooling tank 2 to complete the correction. The hydraulic buffer rod 9 located on the front side resets and pushes the first moving bar 4 located on the front side backward to reset it. The cable continues to move along the first contact wheel 23, the second contact wheel 27 and the contact roller 12. Finally, the cable is wound on the external take-up reel. It should be noted that the first section of cable extruded by the device needs to be cut off. Only after the subsequent extruded cables are evenly distributed can they be directly wound onto the external take-up reel.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatically calibrated wire and cable extruder, comprising an extrusion die body (1), characterized in that, Also includes: Cooling tank (2), the cooling tank (2) is installed at the output end of the extrusion die body (1), a protective cover (3) is installed on the outer side of the cooling tank (2), a first moving strip (4) is slidably connected inside the cooling tank (2), and a second moving strip (5) is slidably connected inside the cooling tank (2). Rack (6), two sets of racks (6) are respectively installed in the first moving bar (4) and the second moving bar (5), a connecting frame (7) is installed on the outer side of the cooling tank (2), and an auxiliary gear (8) is rotatably connected in the connecting frame (7), and the auxiliary gear (8) meshes with the two sets of racks (6); The first moving plate (10) is installed inside the second moving strip (5). The second moving plate (11) is installed inside the first moving strip (4). Contact rollers (12) are installed inside both the first moving plate (10) and the second moving plate (11). An adjustment mechanism is provided inside the protective cover (3).

2. The automatically calibrated wire and cable extruder according to claim 1, characterized in that, The adjustment mechanism includes: Sensor (13) is installed inside the protective cover (3), and a controller (14) is installed inside the protective cover (3). The output terminal of the sensor (13) is electrically connected to the input terminal of the controller (14). A push rod motor (15) is installed inside the protective cover (3). The outer surface of the push rod motor (15) penetrates the cooling tank (2). A push plate is installed at the output end of the push rod motor (15). The output end of the controller (14) is electrically connected to the input end of the push rod motor (15).

3. The automatically calibrated wire and cable extruder according to claim 1, characterized in that, A hydraulic buffer rod (9) is installed inside the protective cover (3), and the inner end of the hydraulic buffer rod (9) is installed on the outside of the first moving bar (4).

4. The automatically calibrated wire and cable extruder according to claim 1, characterized in that, A connecting plate (16) is installed on the outer side of the cooling tank (2), and a fixing plate (17) is installed on the inner side of the connecting plate (16). An adjusting plate (18) is slidably connected inside the fixing plate (17).

5. The automatically calibrated wire and cable extruder according to claim 4, characterized in that, The adjusting plate (18) has an internal threaded adjusting pin (19) which is slidably connected to the connecting plate (16).

6. The automatically calibrated wire and cable extruder according to claim 5, characterized in that, A buffer spring (20) is installed on the inner side of the adjustment plate (18), a buffer plate (21) is installed on the inner end of the buffer spring (20), and a buffer rod (22) is installed inside the buffer plate (21).

7. The automatically calibrated wire and cable extruder according to claim 6, characterized in that, The outer surface of the buffer rod (22) penetrates the cooling groove (2), and the outer surface of the buffer rod (22) penetrates the buffer spring (20) and the adjusting plate (18) respectively.

8. The automatically calibrated wire and cable extruder according to claim 7, characterized in that, The inner end of the buffer rod (22) is equipped with a first contact wheel (23), and there are two sets of the first contact wheel (23).

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