A plastic extruder for cable processing

Abstract

The application discloses a kind of plastic extruders for cable processing, belong to cable processing technical field, including machine body, the inside of water storage cavity is equipped with detection component, detection component includes fixedly connected in the fixed seat of water storage cavity inside right side, the inside of fixed seat is penetrated and is equipped with wire cavity, the upper and lower sides of wire cavity inside are equipped with moving slot, the inside of moving slot is slidably connected with limiting rod, one end of limiting rod close to wire cavity is fixedly connected with extrusion block, the extrusion block of being set is extruded to the outside of cable, and copper core eccentricity is judged according to the moving distance of extrusion block, since cable can detect the eccentricity of cable in real time after extruding insulation cover, effectively avoid the quality of cable caused by eccentricity in the process of extrusion, and when detecting that cable appears larger eccentricity, machine body is adjusted in time by console, and then the quality of cable after extrusion is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of cable processing technology, and more specifically, to a plastic extruder for cable processing. Background Technology

[0002] Cable extrusion is a production process for wires and cables. It uses a screw of a specific shape to rotate in a heated barrel, extruding plastic fed from the hopper forward to uniformly plasticize (i.e. melt) the plastic. Then, through the die head and molds of different shapes, the plastic is extruded into continuous materials of various shapes, which are then extruded onto the wire core and cable to form an insulation layer or sheath layer.

[0003] The extrusion process is a complex physical process in which plastic undergoes plasticization in an extruder. This process includes mixing, crushing, melting, plasticizing, degassing, compaction, and final shaping. The extrusion process includes insulation production and sheath production. Insulation production methods include coating, wrapping, extrusion, and combinations thereof. After the cable is processed, it needs to be tested and corrected using various methods to ensure its quality and performance. The specific testing methods and correction measures will vary depending on the type, specifications, and production requirements of the cable. During the cable processing, the eccentricity problem that occurs during the cable extrusion process needs to be carefully detected.

[0004] In the existing technology, when eccentricity occurs after cable extrusion, an eccentricity tester is usually used to detect the degree of eccentricity of the cable, especially for cases where the eccentricity rate is small. However, when the eccentricity rate is large, it is necessary to make timely adjustments while the cable is still hot or soft. If the eccentricity tester is used for detection, the cable has basically cooled down by then, making it difficult to adjust in time, which requires the cable to be reprocessed. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a plastic extruder for cable processing.

[0006] To solve the above problems, the present invention adopts the following technical solution, which can realize the real-time detection of cable eccentricity during the extrusion process, and adjust the machine in time through the control console when a large eccentricity of the cable is detected.

[0007] A plastic extruder for cable processing includes a machine body and a water storage chamber opened at the upper end of the machine body. A control console is provided on the back of the machine body, and a detection component is provided inside the water storage chamber.

[0008] The detection component includes a fixed base fixedly connected to the right side of the water storage chamber. A wire cavity is formed through the fixed base. Movable grooves are formed on both the upper and lower sides of the wire cavity. A limit rod is slidably connected inside the movable groove. A squeezing block is fixedly connected to one end of the limit rod near the wire cavity. The squeezing block is inserted into the movable groove. A pressure spring is fixedly connected between the side of the movable groove away from the wire cavity and the limit rod. A piston rod is fixedly connected to the other end of the limit rod. A piston cavity is formed on the side of the movable groove near the pressure spring. The piston rod is slidably connected inside the piston cavity. Pressure sensors are provided on the upper and lower surfaces corresponding to the inside of the piston cavity.

[0009] Furthermore, the upper and lower sides of the center of the conductor cavity are both arc-shaped. After the extrusion block moves, it enters the conductor cavity. The upper and lower surfaces corresponding to the extrusion block are both arc-shaped. The conductor cavity, the moving groove, and the piston cavity are connected.

[0010] Furthermore, the mounting base is provided with a marking assembly, which includes a nozzle disposed on the front side inside the wire cavity.

[0011] Furthermore, the nozzle has an extraction component at its front end, and a storage cavity is provided on the front side of the fixed base. The front end of the extraction component extends into the storage cavity, and a conduit is inserted into the upper side of the storage cavity.

[0012] Furthermore, a transfer cavity is provided on the upper side of the fixed seat, the top end of the conduit is connected to the transfer cavity, and a cover plate is hinged to the upper side of the transfer cavity, the upper front side of the cover plate being inverted "L" shape.

[0013] Furthermore, the fixed base is provided with a measuring component inside, the measuring component including a movable cavity opened on the front side of the upper end of the fixed base.

[0014] Furthermore, the moving cavity is located in front of the transfer cavity, and a movable plate is slidably connected inside the storage cavity. Airbags are fixedly connected to both the left and right sides of the lower end of the movable plate, and a column is fixedly connected to the center of the lower end of the movable plate. The lower side of the column is in pressure contact with the lower side of the interior of the storage cavity.

[0015] Furthermore, a fixing rod is fixedly connected to the upper side of the movable plate, and the fixing rod is slidably connected in the moving cavity. A notch is opened on the back side of the movable plate, and the movable plate wraps around the outside of the conduit through the notch. An embedding groove is opened inside the moving cavity.

[0016] Furthermore, the mounting base is equipped with a warning component, which includes a laser rangefinder installed inside the embedded slot.

[0017] Furthermore, warning lights are arranged in parallel at the center of the upper end of the fixed base, and both the warning lights and the laser rangefinder are electrically connected to an external power supply.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The present invention uses an extrusion block to extrude the outer side of the cable and judges the eccentricity of the copper core based on the moving distance of the extrusion block. Since the eccentricity of the cable can be detected in real time after the cable is extruded with an insulating sleeve, the quality of the cable is effectively avoided from being affected by the eccentricity of the copper core during the extrusion process. When a large eccentricity of the cable is detected, the machine body is adjusted in time through the control console, thereby ensuring the quality of the cable after extrusion.

[0020] (2) The present invention uses a nozzle to quickly spray pigment to mark the copper core after detecting the eccentricity. Since the nozzle can spray pigment to mark the outside of the cable when the cable is detected to be eccentric after extrusion, it is convenient for the staff to quickly find the direction of the eccentricity after the cable is processed, thereby ensuring the quality of the cable after processing.

[0021] (3) The present invention controls the movement of the fixed rod inside the moving cavity when the movable plate moves up and down, and determines the amount of pigment based on the position of the fixed rod. Since the amount of pigment inside the storage cavity can be visually displayed by the position of the top of the fixed rod inside the moving cavity, the staff can determine whether to continue injecting pigment into the transfer cavity by moving the fixed rod when injecting pigment, so as to control the amount of pigment supplied. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the fixing base of the present invention;

[0025] Figure 4 This is a cross-sectional view of the fixing base of the present invention;

[0026] Figure 5 This is a cross-sectional view of the wire cavity of the present invention;

[0027] Figure 6 This is a cross-sectional view of the movable cavity of the present invention;

[0028] Figure 7 This is a cross-sectional view of the movable groove of the present invention;

[0029] Figure 8This is a cross-sectional view of the piston cavity of the present invention.

[0030] Explanation of the labels in the diagram:

[0031] 1. Body; 11. Water storage chamber; 12. Control console; 2. Detection components; 21. Fixing base; 22. Wire guide chamber; 23. Moving groove; 24. Limiting rod; 25. Squeezing block; 26. Pressure spring; 271. Piston rod; 272. Piston chamber; 273. Pressure sensor; 28. Marking assembly; 281. Nozzle; 282. Extraction component; 283. Storage chamber; 284. Conduit; 285. Transfer chamber; 286. Cover plate; 29. ​​Measuring components; 291. Moving chamber; 292. Movable plate; 293. Airbag; 294. Column; 295. Fixing rod; 296. Notch; 297. Embedded groove; 3. Warning components; 31. Laser rangefinder; 32. Warning light. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 8 A plastic extruder for cable processing includes a machine body 1 and a water storage chamber opened at the upper end of the machine body 1. A control console 12 is provided on the back of the machine body 1, and a detection component 2 is provided inside the water storage chamber 11.

[0034] The detection component 2 includes a fixed base 21 fixedly connected to the right side inside the water storage chamber 11. A wire cavity 22 is opened through the fixed base 21. Movable grooves 23 are opened on both the upper and lower sides inside the wire cavity 22. A limit rod 24 is slidably connected inside the movable groove 23. A squeezing block 25 is fixedly connected to one end of the limit rod 24 near the wire cavity 22. The squeezing block 25 is inserted into the movable groove 23. A pressure spring 26 is fixedly connected between the side of the movable groove 23 away from the wire cavity 22 and the limit rod 24. A piston rod 271 is fixedly connected to the other end of the limit rod 24. A piston cavity 272 is opened on the side of the movable groove 23 near the pressure spring 26. The piston rod 271 is slidably connected inside the piston cavity 272. Pressure sensors 273 are provided on the upper and lower surfaces corresponding to the inside of the piston cavity 272.

[0035] The upper and lower sides of the center of the wire cavity 22 are both arc-shaped. After the extrusion block 25 moves, it enters the wire cavity 22. The upper and lower corresponding surfaces of the extrusion block 25 are both arc-shaped. The wire cavity 22, the moving groove 23 and the piston cavity 272 are connected.

[0036] By adopting the above technical solution, during the extrusion of the insulation sleeve on the outside of the copper core in the machine body 1, the extruded cable will be transported to the water storage chamber 11 in front of the control console 12. During this process, the cable will first pass through the fixed seat 21 and connect with the conductor cavity 22. At this time, the extrusion block 25 inside the moving groove 23 will enter the conductor cavity 22 from the moving groove 23 due to the pressure of the pressure spring 26 on the limiting rod 24. The cable passing through the guide cavity will pass between the two extrusion blocks 25, so that the two extrusion blocks 25 close to each other will press the outside of the cable. Because the movement range of the limiting rod 24 inside the moving groove 23 is limited, the degree of extrusion of the insulation layer on the outside of the copper core by the extrusion block 25 is limited. If the eccentricity of the wire is too large, it means that the copper core is not centered, but biased to one side of the insulation layer. This will cause the insulation layer to be thinner in some places. As the extrusion block 25 extrudes the cable, because the copper core material is relatively hard, the extrusion... After the extrusion block 25 squeezes both sides of the cable, the extrusion block 25 near the copper core moves at different distances than the other extrusion block 25. At the same time, the piston rod 271 at the other end of the limit rod 24 moves inside the piston chamber 272 under the action of the limit rod 24, and compresses the air inside the piston chamber 272. The compressed air then squeezes the pressure sensor 273. If the two piston rods 271 move at different distances, the pressure generated by the compressed air on the pressure sensor 273 will also be different. Finally, the pressure sensor 273 transmits the signal to the control console 12, and the control console 12 will adjust the machine body 1. Since the eccentricity of the cable can be detected in real time after the extrusion of the insulation sleeve, it effectively avoids the quality of the cable being affected by the eccentricity of the copper core during the extrusion process. When a large eccentricity of the cable is detected, the control console 12 adjusts the machine body 1 in time, thereby ensuring the quality of the cable after extrusion.

[0037] like Figure 4 and Figure 5 As shown, the interior of the fixing base 21 is provided with a marking component 28, which includes a nozzle 281 disposed on the front side inside the wire cavity 22.

[0038] The nozzle 281 has an extraction component 282 at its front end. The front side of the fixed base 21 has a storage cavity 283. The front end of the extraction component 282 extends into the storage cavity 283. A conduit 284 is inserted into the upper side of the storage cavity 283.

[0039] A transfer cavity 285 is provided on the upper side of the fixed base 21. The top end of the conduit 284 is connected to the transfer cavity 285. A cover plate 286 is hinged to the upper side of the interior of the transfer cavity 285. The upper front side of the cover plate 286 is in the shape of an inverted "L".

[0040] By adopting the above technical solution, as the pressure sensor 273 transmits the signal to the control console 12, the control console 12 will also control the extraction component 282 to extract the pigment from the storage chamber 283. Then, the pigment is sprayed onto the cable through the nozzle 281. When it is necessary to fill the storage chamber 283 with pigment, the cover plate 286 can be opened from the upper side of the transfer chamber 285, and then the pigment can be filled into the transfer chamber 285. The pigment that enters the transfer chamber 285 is finally sent into the storage chamber 283 through the conduit 284. When the cable is detected to be eccentric after extrusion, the nozzle 281 can spray pigment to mark the outside of the cable, so that the staff can quickly find the direction of the cable eccentricity after the cable is processed, thereby ensuring the quality of the cable after processing.

[0041] like Figures 3 to 6 As shown, the interior of the fixed base 21 is provided with a measuring component 29, which includes a movable cavity 291 opened on the front side of the upper end of the fixed base 21.

[0042] The moving cavity 291 is located in front of the transfer cavity 285. The storage cavity 283 is slidably connected to the movable plate 292. The lower end of the movable plate 292 is fixedly connected to the left and right sides of the left and right sides. The lower end of the movable plate 292 is fixedly connected to the center of the lower end of the movable plate 292. The lower side of the movable plate 294 is in pressure contact with the lower side of the storage cavity 283.

[0043] A fixing rod 295 is fixedly connected to the upper side of the movable plate 292. The fixing rod 295 is slidably connected in the movable cavity 291. A notch 296 is opened on the back side of the movable plate 292. The movable plate 292 is wrapped around the outside of the conduit 284 through the notch 296. An embedding groove 297 is opened inside the movable cavity 291.

[0044] By adopting the above technical solution, when the pigment is delivered into the storage cavity 283 through the conduit 284, the movable plate 292 inside the storage cavity 283 is supported by the column 294, and the conduit 284 passes through the movable plate 292 through the notch 296 on the back of the movable plate 292. This ensures that the pigment delivered by the conduit 284 is always below the movable plate 292. At the same time, as the amount of pigment below the movable plate 292 increases, the pigment will gradually lift the airbag 293 below the movable plate 292, so that the movable plate 292 is always above the pigment due to the buoyancy of the airbag 293 and never comes into contact with the pigment. During the upward movement of the movable plate 292, the fixing rod 295, which is fixed above the movable plate 292 and inserted into the moving cavity 291, will... Sliding inside the moving cavity 291, when the top of the fixed rod 295 moves to be level with the top of the moving cavity 291, the pigment stops flowing into the transfer cavity 285, and then the cover plate 286 is closed. As the amount of pigment in the storage cavity 283 gradually decreases, the movable plate 292 will also descend synchronously due to the decrease in the pigment level, until the top of the fixed rod 295 is level with the position of the embedded cavity. The movable plate 292 and the fixed rod 295 stop moving downward. Since the amount of pigment in the storage cavity 283 can be visually displayed by the position of the top of the fixed rod 295 inside the moving cavity 291, the staff can judge whether to continue pouring pigment into the transfer cavity 285 by the movement of the fixed rod 295 when injecting pigment, so as to control the amount of pigment supplied.

[0045] like Figures 4 to 8 As shown, the interior of the mounting base 21 is provided with a warning component 3, which includes a laser rangefinder 31 installed inside the embedded slot 297.

[0046] Warning lights 32 are arranged in parallel at the center of the upper end of the mounting base 21. Both the warning lights 32 and the laser rangefinder 31 are electrically connected to an external power supply.

[0047] By adopting the above technical solution, as the piston rod 271 compresses the air inside the piston chamber 272, the pressure generated by the compressed air will be transmitted to the pressure sensor 273 inside the piston chamber 272. Subsequently, the pressure sensor 273 will transmit the information to the control console 12, causing the control console 12 to control one of the warning lights 32 above the fixed base 21 to light up. After the fixed rod 295 moves to the position of the embedded groove 297, the laser from the laser rangefinder 31, which was originally illuminating the outside of the fixed rod 295, will illuminate the inner wall of the embedded groove 297. After the laser rangefinder 31 transmits a signal to the control console 12, the control console 12 will control another warning light 32 above the fixed base 21 to light up. Since the warning light 32 can be lit to warn the staff when the copper core inside the cable is detected to be off-center, the staff can also light up the other warning light 32 when the ink in the storage chamber 283 is used up. At this time, the staff can use the warning light 32 to replenish the ink in time to ensure the marking effect of the cable.

[0048] Working principle: After the cable enters the fixing seat 21 and connects with the conductor cavity 22, the pressure spring 26 constantly compresses the limiting rod 24, causing the limiting rod 24 to enter the conductor cavity 22 from the moving groove 23, and simultaneously pressing the outside of the cable. If the copper core is eccentric, because the limiting rod 24 has a limited range of movement inside the moving groove 23, and the copper core material is relatively hard, the compression block 25, after compressing both sides of the cable, will move at different distances than the other compression block 25. At the same time, the piston rod 271 at the other end of the limiting rod 24 moves inside the piston cavity 272 under the drive of the limiting rod 24, compressing the air inside the piston cavity 272, so that... The compressed air will squeeze the pressure sensor 273. If the two piston rods 271 move different distances, the pressure generated by the compressed air on the pressure sensor 273 will also be different. Finally, the pressure sensor 273 transmits a signal to the control console 12, which will then adjust the body 1. At the same time, the control console 12 controls one of the warning lights 32 above the mounting base 21 to light up. As the pressure sensor 273 transmits a signal to the control console 12, the control console 12 also controls the extraction component 282 to extract the pigment from the storage chamber 283, and then spray the pigment onto the cable through the nozzle 281. When it is necessary to fill the storage chamber 283 with pigment, the cover plate 2 can be opened. 86 opens from the upper side of the transfer chamber 285, then pours the pigment into the transfer chamber 285, and finally sends it into the storage chamber 283 through the conduit 284. Because the conduit 284 passes through the notch 296 on the back of the movable plate 292, the pigment delivered by the conduit 284 is always below the movable plate 292. At the same time, as the amount of pigment below the movable plate 292 increases, the pigment will gradually lift the airbag 293 below the movable plate 292, so that the movable plate 292 is always above the pigment due to the buoyancy of the airbag 293, and never comes into contact with the pigment. During the upward movement of the movable plate 292, it is fixed above the movable plate 292 and inserted into the moving chamber 29. The fixed rod 295 inside the moving cavity 291 will slide inside the moving cavity 291. When the top of the fixed rod 295 moves to be level with the top of the moving cavity 291, the pigment stops pouring into the transfer cavity 285. As the amount of pigment in the storage cavity 283 gradually decreases, the movable plate 292 will also descend synchronously due to the drop in the pigment level. After the fixed rod 295 moves to the position of the embedding groove 297, the laser from the laser rangefinder 31, which was originally illuminating the outside of the fixed rod 295, will illuminating the inner wall of the embedding groove 297. After the laser rangefinder 31 transmits a signal to the control console 12, the control console 12 will control another warning light 32 above the fixed seat 21 to light up, at which point the supply of pigment stops.

[0049] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A plastic extruder for cable processing, comprising a body (1) and a water storage chamber (11) formed at the upper end of the body (1), wherein a control console (12) is provided on the back of the body (1), characterized in that: The water storage chamber (11) is equipped with a detection component (2); The detection component (2) includes a fixed base (21) fixedly connected to the right side inside the water storage chamber (11). A wire guide cavity (22) is formed through the fixed base (21). Movable grooves (23) are formed on both the upper and lower sides inside the wire guide cavity (22). A limit rod (24) is slidably connected inside the movable groove (23). A squeezing block (25) is fixedly connected to one end of the limit rod (24) near the wire guide cavity (22). The squeezing block (25) is inserted into the movable groove (23). A pressure spring (26) is fixedly connected between the side of the moving groove (23) away from the wire cavity (22) and the limiting rod (24). A piston rod (271) is fixedly connected to the other end of the limiting rod (24). A piston cavity (272) is opened on the side of the moving groove (23) close to the pressure spring (26). The piston rod (271) is slidably connected inside the piston cavity (272). Pressure sensors (273) are provided on the upper and lower surfaces corresponding to the inside of the piston cavity (272). The fixing base (21) is provided with a marking component (28), which includes a nozzle (281) disposed on the front side inside the wire cavity (22). The nozzle (281) is provided with an extraction component (282) at its front end. The fixed base (21) has a storage cavity (283) on its front side. The front end of the extraction component (282) extends into the storage cavity (283). A conduit (284) is inserted into the upper side of the storage cavity (283). The upper side of the fixed seat (21) is provided with a transfer cavity (285), the top end of the conduit (284) is connected to the transfer cavity (285), and a cover plate (286) is hinged to the upper side of the interior of the transfer cavity (285). The upper front side of the cover plate (286) is in the shape of an inverted "L".

2. The plastic extruder for cable processing according to claim 1, characterized in that: The upper and lower sides of the center of the wire cavity (22) are arc-shaped. After the extrusion block (25) moves, it enters the wire cavity (22). The upper and lower surfaces corresponding to the extrusion block (25) are arc-shaped. The wire cavity (22), the moving groove (23) and the piston cavity (272) are connected.

3. The plastic extruder for cable processing according to claim 1, characterized in that: The fixed base (21) is provided with a measuring component (29) inside, and the measuring component (29) includes a movable cavity (291) opened on the front side of the upper end of the fixed base (21).

4. A plastic extruder for cable processing according to claim 3, characterized in that: The moving cavity (291) is located in front of the transfer cavity (285). The storage cavity (283) is slidably connected to a movable plate (292). Airbags (293) are fixedly connected to the left and right sides of the lower end of the movable plate (292). A column (294) is fixedly connected to the center of the lower end of the movable plate (292). The lower side of the column (294) is in contact with the lower side of the interior of the storage cavity (283).

5. A plastic extruder for cable processing according to claim 4, characterized in that: A fixing rod (295) is fixedly connected to the upper side of the movable plate (292). The fixing rod (295) is slidably connected in the moving cavity (291). A notch (296) is opened on the back side of the movable plate (292). The movable plate (292) is wrapped around the outside of the conduit (284) through the notch (296). An embedding groove (297) is opened inside the moving cavity (291).

6. A plastic extruder for cable processing according to claim 5, characterized in that: The mounting base (21) is provided with a warning component (3), which includes a laser rangefinder (31) installed inside the embedded slot (297).

7. A plastic extruder for cable processing according to claim 6, characterized in that: Warning lights (32) are arranged in parallel at the center of the upper end of the fixed base (21). Both the warning lights (32) and the laser rangefinder (31) are electrically connected to an external power supply.

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