A wire harness extrusion mechanism for anti-interference cable production

Abstract

The utility model discloses a kind of wire harness extrusion mechanisms for anti-interference cable production, it is related to wire and cable manufacturing technology technical field.A kind of wire harness extrusion mechanisms for anti-interference cable production, including screw extruder equipment, further include: the extrusion head of being installed in the output end of screw extruder equipment, and the cable core to be covered is penetrated in its both ends;Protective cover, installed in the output end of extrusion head one side;Jet pipe, annularly set on the inner wall of protective cover;The utility model is equipped with protective cover in the output end of extrusion head, and jet pipe is set in protective cover, and the cooling airflow is injected at jet pipe place to be inhaled to the uniform cooling cooling of just wrapped wire core's molten material, simultaneously, using arc cleaning block can clean the impurities that fall in jet pipe gas port position, maintain the stability of airflow, to improve the wrapping effect of cable, simultaneously convenient centralized collection, improve maintenance efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of wire and cable manufacturing technology, and in particular relates to a wire harness extrusion mechanism for producing anti-interference cables. Background Technology

[0002] In the production of anti-interference cables, the wire harness extrusion molding process is a key step to ensure the density of the insulation and shielding layers. Existing extrusion mechanisms typically use a continuous extrusion method, where molten thermoplastic material is wrapped around the surface of the wire core through an extrusion die, and then the core enters a cooling device for shaping.

[0003] However, in actual production, it has been found that after the molten material flows out of the extrusion die and wraps around the wire core, in the suspended section before fully entering the cooling zone (i.e., the unsupported section between the extrusion die outlet and the cooling device inlet), the surface layer is prone to sagging deformation due to gravity because the material has not yet formed a stable solidified state. At this time, due to insufficient surface tension and its own weight, the molten material causes local separation between the outer layer material and the wire core, forming a "shelling" defect due to insufficient adhesion. Especially under high-speed extrusion conditions, the material residence time in this section is extremely short (about 0.3-0.8 seconds), and conventional air-cooling or water-cooling devices cannot quickly form effective support, causing structural peeling of the outer layer material before it is fully solidified. This ultimately results in quality problems such as uneven insulation layer thickness and reduced adhesion, seriously affecting the anti-interference performance and mechanical strength of the cable. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a wire harness extrusion mechanism for anti-interference cable production that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a wire harness extrusion mechanism for anti-interference cable production, including a screw extruder, and further including: an extrusion head installed at the output end of the screw extruder, with the cable core to be covered penetrating through both ends; a protective cover installed at the output end on one side of the extrusion head; and an air jet pipe arranged in a ring on the inner wall of the protective cover. An adjustable arc-shaped cleaning block is provided on one side of the air jet pipe. When impurities fall into the area penetrating the bottom of the cable core through the arc-shaped cleaning block, they are cleaned and collected by the arc-shaped cleaning block.

[0006] Preferably, the output end of the jet pipe is provided with jet nozzles distributed at equal intervals, the jet pipe is embedded in the inner wall of the protective cover, one end of the jet pipe is fixedly connected to the air inlet pipe, and one end of the air inlet pipe passes through the protective cover and extends to the outside where a mounting plate is fixed.

[0007] Preferably, a sensor is installed inside the jet pipe, and a controller is installed on the protective cover, with the controller electrically connected to the sensor.

[0008] Preferably, a connecting plate is installed at one end of the arc-shaped cleaning block, a second electric push rod is fixed at the end of the connecting plate, an L-shaped mounting plate is fixed at one end of the second electric push rod, a first electric push rod is installed on one side of the L-shaped mounting plate, the first electric push rod is installed in a mounting groove, the mounting groove is opened on one side of the protective cover, and the second electric push rod and the first electric push rod are electrically connected to the controller.

[0009] Preferably, the inner wall of the protective cover has left and right collection slots on one side of the jet pipe, and the bottom of the collection slots is connected to a cleaning door via a hinge on the protective cover. The cleaning door is equipped with a handle.

[0010] Preferably, a guide ring is fixed between the jet pipe and the collection tank.

[0011] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention provides a protective cover at the output end of the extrusion head and a jet pipe inside the protective cover. Cooling airflow is sprayed through the jet pipe to uniformly cool the molten material that has just wrapped the wire core. At the same time, the arc-shaped cleaning block can clean up the impurities that fall at the air outlet of the jet pipe, maintain the stability of the airflow, thereby improving the wrapping effect of the cable and facilitating centralized collection, thus improving maintenance efficiency. Attached Figure Description

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the overall structure of a wire harness extrusion mechanism for producing anti-interference cables proposed in this utility model;

[0014] Figure 2 This is a side view of the wire harness extrusion mechanism for producing anti-interference cables proposed in this utility model.

[0015] Figure 3 This is a side view sectional view of the wire harness extrusion mechanism for producing anti-interference cables proposed in this utility model.

[0016] Figure 4 The present utility model proposes Figure 3 Enlarged structural diagram of region A in the middle;

[0017] Figure 5 This is a partial three-dimensional structural diagram of the protective cover proposed in this utility model.

[0018] In the diagram: 1. Screw extruder; 2. Extrusion head; 3. Protective cover; 4. Air inlet pipe; 41. Mounting plate; 42. Jet pipe; 43. Jet nozzle; 51. Mounting groove; 52. First electric push rod; 53. L-shaped mounting plate; 54. Second electric push rod; 55. Connecting plate; 56. Arc-shaped cleaning block; 7. Collection trough; 71. Cleaning door; 72. Handle; 8. Guide ring. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0020] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0021] In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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] Example 1: Refer to Figures 1-5 An anti-interference cable production wire harness extrusion mechanism includes a screw extruder 1, and further includes: an extrusion head 2 installed at the output end of the screw extruder 1, with cable cores to be coated passing through both ends; a protective cover 3 installed at the output end on one side of the extrusion head 2; and an air jet pipe 42 arranged in a ring on the inner wall of the protective cover 3. An adjustable arc-shaped cleaning block 56 is provided on one side of the air jet pipe 42. When impurities fall into the area where the arc-shaped cleaning block 56 passes through the bottom of the cable core, they are cleaned and collected by the arc-shaped cleaning block 56.

[0023] In this invention, the cable core to be coated is inserted through the extrusion head 2. As the screw extruder 1 is started, the granular material is heated and melted, then conveyed to the extrusion head 2 for extrusion. The molten material then coats the outer surface of the cable core. As the cable core moves to the cooling zone, a protective cover 3 is installed at the output end of the extrusion head 2. An air jet pipe 42 is provided on the inner wall of the protective cover 3. By conveying cooling airflow, the freshly extruded molten material is cooled and cooled down to accelerate solidification, preventing the coated material from sagging or the outer layer from falling off, thereby improving the overall stability of the equipment. As the equipment runs, some outer surface material may fall onto the air outlet of the air jet pipe 42. The airflow magnitude is monitored by a sensor inside the air jet pipe 42, and the arc-shaped cleaning block 56 is used to clean it, improving the uniformity of cooling airflow on the coated material and facilitating centralized cleaning and collection.

[0024] Example 2: Refer to Figures 1-5 Similar to Embodiment 1, but with a further improvement: the output end of the jet pipe 42 is provided with jet nozzles 43 distributed at equal intervals; the jet pipe 42 is embedded in the inner wall of the protective cover 3; one end of the jet pipe 42 is fixedly connected to the air inlet pipe 4; one end of the air inlet pipe 4 penetrates the protective cover 3 and extends to the outside where a mounting plate 41 is fixed; one end of the arc-shaped cleaning block 56 is equipped with a connecting plate 55; the end of the connecting plate 55 is fixed with a second electric push rod 54; one end of the second electric push rod 54 is fixed with an L-shaped mounting plate 53; the L-shaped mounting plate 53... A first electric push rod 52 is installed on one side of the mounting plate 53. The first electric push rod 52 is installed in the mounting groove 51, which is opened on one side of the protective cover 3. The second electric push rod 54 and the first electric push rod 52 are electrically connected to the controller. The inner wall of the protective cover 3 is opened on one side of the jet pipe 42, and the left and right collection grooves 7 are opened. The bottom of the collection groove 7 is connected to the cleaning door 71 by a hinge on the protective cover 3. The cleaning door 71 is equipped with a handle 72. A guide ring 8 is fixed between the jet pipe 42 and the collection groove 7.

[0025] In use, the device is connected to the air compressor's air supply pipe via the mounting plate 41, delivering cooling airflow to the air inlet pipe 4. The airflow is then ejected through the air nozzles 43 at the end of the jet pipe 42. Because the air nozzles 43 are evenly spaced in a ring, the ejected airflow surrounds the wire core, providing uniform cooling and improving the solidification effect of the molten material after coating. This prevents sagging and falling during high-speed movement of the device. During prolonged use, material may sometimes fall off the outer surface layer and become trapped in the area below the wire core on the jet pipe 42. When the airflow sensor inside the jet pipe 42 monitors changes in airflow, it... The controller activates the first electric push rod 52, which moves the arc-shaped cleaning block 56 horizontally to remove the material that has fallen from the jet pipe 42. The arc-shaped cleaning block 56 can be made of flexible and easy-to-clean materials such as sponge. After cleaning, the controller activates the second electric push rod 54 to move the arc-shaped cleaning block 56 downward. After adjusting a certain distance, the material on the bottom surface of the arc-shaped cleaning block 56 is scraped off using the structural characteristics of the jet pipe 42, resulting in secondary cleaning for subsequent continuous cleaning. Commonly used models of sensors and controllers can be used. The removed material is guided by the guide ring 8 and falls into the collection tank 7 for centralized collection, facilitating subsequent centralized cleaning.

[0026] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A wire harness extrusion mechanism for producing anti-interference cables, comprising a screw extruder (1), characterized in that, Also includes: The extrusion head (2) installed at the output end of the screw extruder (1) has cable cores to be covered passing through both ends; The protective cover (3) is installed on the output end of the extruder (2) on one side; The jet pipe (42) is arranged in a ring on the inner wall of the protective cover (3). An adjustable arc-shaped cleaning block (56) is provided on one side of the jet pipe (42). When impurities fall into the bottom area of ​​the through cable core, the arc-shaped cleaning block (56) cleans and collects them.

2. The wire harness extrusion mechanism for producing anti-interference cables according to claim 1, characterized in that, The output end of the jet pipe (42) is provided with jet nozzles (43) distributed at equal intervals. The jet pipe (42) is embedded in the inner wall of the protective cover (3). One end of the jet pipe (42) is fixedly connected to the air inlet pipe (4). One end of the air inlet pipe (4) passes through the protective cover (3) and extends to the outside where a mounting plate (41) is fixed.

3. The wire harness extrusion mechanism for producing anti-interference cables according to claim 2, characterized in that, A sensor is installed inside the jet pipe (42), and a controller is installed on the protective cover (3). The controller is electrically connected to the sensor.

4. The wire harness extrusion mechanism for producing anti-interference cables according to claim 3, characterized in that, One end of the arc-shaped cleaning block (56) is equipped with a connecting plate (55), and the end of the connecting plate (55) is fixed with a second electric push rod (54). One end of the second electric push rod (54) is fixed with an L-shaped mounting plate (53). One side of the L-shaped mounting plate (53) is equipped with a first electric push rod (52). The first electric push rod (52) is installed in the mounting groove (51), which is opened on one side of the protective cover (3). The second electric push rod (54) and the first electric push rod (52) are electrically connected to the controller.

5. The wire harness extrusion mechanism for producing anti-interference cables according to claim 1, characterized in that, The inner wall of the protective cover (3) is provided with left and right collection slots (7) on one side of the jet pipe (42). The bottom of the collection slots (7) is connected to the cleaning door (71) by a hinge on the protective cover (3). The cleaning door (71) is equipped with a handle (72).

6. The wire harness extrusion mechanism for producing anti-interference cables according to claim 1, characterized in that, A guide ring (8) is fixed between the jet pipe (42) and the collection tank (7).

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