A cable sheathing extruder

Abstract

The present invention discloses a cable sheathing extruder, wherein a feed hopper is connected at the feed port of the extruder body, a head is connected at the discharge port of the extruder body, an inlet for metal wire to enter is provided at one end of the head, an outlet interconnected with the inlet is provided at the other end, a spraying mechanism is provided at one end of the outlet of the head, the spraying mechanism comprises a spray gun, an air compressor and a plurality of pressure storage barrels, the spray gun is provided with a feed port and a nozzle, the nozzle faces the center line of the head outlet, the pressure storage barrels are all connected with a conduit, the pressure storage barrel is connected with the feed port of the spray gun through the conduit, the conduit is connected with the spray gun through a thread, the conduit goes deep into the pressure storage barrel, and the pressure storage barrel is connected to the air compressor through a connecting pipe. The cable sheathing extruder is equipped with a plurality of nozzles, and the color of the cable outer sheath is changed by spraying, so that there is no need to stop the machine for discharging, the whole process is more convenient to operate, and the waste of raw materials can be reduced at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of cable manufacturing equipment, in particular to a cable sheath extruder. Background Art

[0002] In the field of wire and cable manufacturing, plastic extruder is an indispensable part. The plastic needs to be melted at high temperature and then attached to the surface of the metal wire through the head device.

[0003] A Chinese patent with announcement number 208896439U discloses a handle for a head of a wire and cable extruder, comprising a body base, an extruder body mounted on the upper end of the body base, a feed hopper connected to the feed port of the extruder body, a half joint sleeved on the discharge end of the extruder body, and a head feed end connected to the other end of the half joint, wherein the half joint is formed by hingedly connecting the lower ends of two symmetrical half joints at the opposite ends, and the upper part of the other end of the half joint is connected with a lifting ear, and the two lifting ears are threadedly connected and fastened with a nut through a screw rod; a screw sleeve is sleeved on the nut, and a tightening handle is connected to the outer wall of the screw sleeve, and the lower end of the head is fixedly connected to one end of a rotating support frame, and the other end of the rotating support frame is connected to the side wall of the body base.

[0004] In order to facilitate the distinction, the plastic outer layer is often set to different colors. When changing the color, the wire and cable extruder needs to be stopped to release all the materials in the original extruder, and then introduce the new color material. This operation is more troublesome and will cause unnecessary waste of raw materials. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a cable sheathing extruder, which is equipped with multiple nozzles. The color of the cable sheathing can be changed by spraying, so there is no need to stop the machine for discharging materials. The whole process is more convenient to operate and the waste of raw materials can be reduced.

[0006] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0007] A cable sheathing extruder comprises an extruder body with a feed port and a discharge port, wherein the feed port of the extruder body is connected to a feed hopper, the discharge port of the extruder body is connected to a head, one end of the head is provided with an inlet for metal wire to enter, and the other end is provided with an outlet interconnected with the inlet, one end of the outlet of the head is provided with a spraying mechanism, the spraying mechanism comprises a spray gun, an air compressor and a plurality of pressure storage barrels, the spray gun is provided with a feed port and a nozzle, the nozzle faces the center line of the head outlet, the pressure storage barrels are all connected with conduits, the pressure storage barrels are connected to the feed port of the spray gun through the conduit, the conduit is connected to the spray gun through a thread, the conduit penetrates into the pressure storage barrel, and the pressure storage barrel is connected to the air compressor through a connecting pipe.

[0008] By adopting the above technical scheme, different colors of pigments are stored in each pressure storage barrel. The air compressor is started to inflate the pressure storage barrel of the corresponding color, so that the pigment is pressed into the conduit. The spray gun is opened to spray the pigment on the cable with the outer sheath that has just been injected. When it is necessary to spray another color, it is only necessary to remove the conduit originally connected to the spray gun, and connect the conduit corresponding to the color to be sprayed to the spray gun. At first, the small amount of pigment remaining in the spray gun can be sprayed to other places first, and then the cable can be sprayed with another color of pigment. Therefore, there is no need to stop the machine to release all the materials in the original extruder and then introduce the new color of material as in the traditional method. Such a structure makes it simpler and more convenient to produce cables with marked lines of another color, and the production efficiency is higher, while reducing the waste of raw materials.

[0009] The present invention is further configured as follows: a baffle is provided at one end of the outlet of the machine head, a spray port is provided through the baffle, the spray port faces the center line of the machine head outlet, the spray gun and the baffle are located on the same side of the outlet center line and the nozzle of the spray gun is aligned with the spray port.

[0010] By adopting the above technical solution, the paint sprayed from the spray gun is sprayed on the cable through the baffle. As the cable is continuously transported forward, the paint sprayed on the cable forms a linear marking line, which is more regular and beautiful.

[0011] The present invention is further configured as follows: the machine head includes a machine body and a rotating ring rotatably connected to the machine body, the rotating ring is rotatably connected to the side wall of the machine body at one end of the outlet, a positioning piece is provided between the rotating ring and the machine head, a plurality of spray guns are provided and are connected one-to-one with corresponding pressure storage barrels, and the spray guns are fixed on the rotating ring.

[0012] By adopting the above technical solution, multiple spray guns are also provided which correspond one to one with the pressure storage barrels. In this way, when changing the color for spraying, there is no need to disassemble the catheter or clean the residual paint in the spray gun. It is only necessary to rotate the rotating ring to align the corresponding spray gun with the spray port. The operation is simpler and more convenient, and the waste of raw materials can also be reduced.

[0013] The present invention is further configured as follows: the baffle includes a first plate body and a second plate body, the gap between the first plate body and the second plate body constitutes a spray port, the first plate body and the second plate body are both horizontally slidably connected to the machine head, and the first plate body and the second plate are both positioned with the machine body by bolts.

[0014] By adopting the above technical solution, the size of the gap between the first plate and the second plate can be changed, thereby changing the width of the marking line left on the cable after spraying. The gap between the first plate and the second plate can be adjusted according to different cables and actual needs to expand its scope of use.

[0015] The present invention is further configured as follows: the baffle is located above the outlet, the first plate body and the second plate body are both inclined, the first plate body and the second plate body gradually approach each other from the side close to the center line of the nose outlet to the side away from it, and the farthest distance between the first plate body and the second plate body is greater than the diameter of the outlet.

[0016] The color sprayed by the spray gun will be blocked by the baffle, and the paint remaining on the baffle will easily drip onto the cable, thereby affecting the quality of the produced cable. By adopting the above technical solution, the paint remaining on the first plate and the second plate will continue to slide down and will not fall on the cable, thereby not easily affecting the quality of the produced cable.

[0017] The present invention is further configured as follows: a material receiving groove is respectively provided at the bottom of the first plate body and the bottom of the second plate body.

[0018] By adopting the above technical solution, the residual paint on the first plate and the second plate can slide into the receiving trough, and the operator does not need to specially clean the paint dropped on the ground later, and the environment in the workshop is made neater and cleaner.

[0019] The present invention is further configured as follows: the positioning piece includes a fixed block, a positioning rod, an elastic piece and a positioning bead, the fixed block is fixedly mounted on the outer wall of the machine head, the positioning rod is threadedly connected to the fixed block, one end of the positioning rod threadedly connected to the fixed block is provided with a mounting groove, and the other end is provided with a through hole interconnected with the mounting groove, the diameter of the through hole is smaller than the diameter of the positioning bead, the elastic piece and the positioning column are installed in the mounting groove, one end of the elastic piece abuts against the fixed block, and the other end abuts against the positioning bead, the positioning bead protrudes out of the through hole, and the side wall of the rotating ring is provided with a plurality of arc-shaped grooves clamped with the positioning beads, and the arc-shaped grooves correspond one-to-one to the spray guns.

[0020] By adopting the above technical solution, when the nozzle needs to be replaced, it is only necessary to rotate the rotating ring. During the rotation of the rotating ring, the positioning bead will first be disengaged from the original arc-shaped groove, and the spring will be compressed at the same time. When the spray gun that needs to be sprayed is aimed at the spray port, the positioning bead will be just stuck into the next arc-shaped groove to position the rotating ring, making the entire replacement process of the spray gun simpler and more convenient, and the positioning piece can automatically position the rotating ring.

[0021] The present invention is further configured as follows: the spray gun includes a trigger for controlling its opening and closing, a trigger block is provided at one end of the outlet of the machine head, the trigger block is located above the outlet, the upper surface of the trigger block is an arc surface protruding outward, and when the positioning bead is clamped in the arc groove, the arc surface of the trigger block presses against the trigger of the spray gun above.

[0022] By adopting the above technical solution, after the rotating ring rotates, the trigger on the original spray gun will be detached from the trigger block, causing the original spray gun to stop spraying. In addition, when the positioning bead is clamped into another arc-shaped groove, the trigger on the next spray gun will be squeezed onto the trigger block, and the trigger block will be used to press the trigger on the spray gun to trigger the spray gun for spraying, thereby making the replacement of the spray gun more convenient and quick, and the extruder does not need to be shut down to achieve the replacement of the spray gun, thereby further improving production efficiency.

[0023] The present invention is further configured as follows: an arc plate is arranged at the machine head relative to one end of the outlet, the arc plate is located between several spray guns, and the opening of the arc plate is arranged toward the baffle.

[0024] By adopting the above technical solution, the arrangement of the arc-shaped plate makes it difficult for the conduit on the spray gun to touch the cable when the rotating ring rotates.

[0025] In summary, the beneficial technical effects of the present invention are:

[0026] The outer sheath of the cable is marked by spraying with a spray gun. Without stopping the extruder, the cable can be sprayed with different colors of paint by rotating the rotating ring. There is no need to remove the original raw materials and then replace them. This can greatly improve production efficiency and reduce the waste of raw materials. At the same time, it is more convenient and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0028] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A.

[0029] Figure 3 It is a three-dimensional structural schematic diagram of the machine head in the present invention.

[0030] Figure 4 It is a structural schematic diagram of the positioning member in the present invention.

[0031] In the figure, 1, extruder body; 2, feed hopper; 3, head; 4, inlet; 5, outlet; 6, spraying mechanism; 61, spray gun; 612, trigger; 62, air compressor; 63, pressure storage barrel; 7, feed port; 8, nozzle; 9, conduit; 10, connecting pipe; 11, baffle; 111, first plate body; 112, second plate body; 113, bolt; 114, sliding block; 115, sliding groove; 12, spraying port; 13, rotating ring; 14, positioning member; 141, fixing block; 142, positioning rod; 143, elastic member; 144, positioning bead; 145, mounting groove; 15, receiving groove; 16, through hole; 17, arc groove; 18, trigger block; 19, arc surface; 20, arc plate; 21, threaded hole; 22, annular groove; 23, annular protrusion. DETAILED DESCRIPTION

[0032] Reference Figure 1 and Figure 2 , a cable sheath extruder disclosed in the present invention, comprising an extruder body, a feed hopper 2 is installed at the feed port of the extruder body, a head 3 is installed at the discharge port of the extruder body, and an inlet 4 and an outlet 5 are provided on the head 3 ( Figure 3 As shown in the figure, the inlet 4 and the outlet 5 are interconnected, the metal wire of the cable enters from the inlet 4 of the head 3 and comes out from the outlet 5. In this process, the plastic is melted by the high temperature of the extruder body and enters the head 3 so that it adheres to and covers the surface of the metal wire.

[0033] The machine head 3 includes a machine body and a rotating ring 13 rotatably arranged on the side wall of the machine head 3, an annular protrusion 23 is arranged on the side wall of the machine head 3, an annular groove 22 is arranged on the rotating ring 13, the annular protrusion 23 is rotatably arranged in the annular groove 22, the rotating ring 13 is divided into two halves, when installing, the rotating ring 13 is combined and installed on the machine head 3 and then fixed by welding; a spraying mechanism 6 is arranged on the rotating ring 13, the spraying mechanism 6 includes four spray guns 61, the four spray guns 61 are evenly arranged on the rotating ring 13 around the center of the rotating ring 13, a feed port 7 and a nozzle 8 are arranged on the spray gun 61, a conduit 9 is threadedly connected at the feed port 7, the other end of the conduit 9 relative to the spray gun 61 is connected to a pressure storage barrel 63, the conduit 9 goes deep into the pressure storage barrel 63, different colors of pigments are respectively put into the four pressure storage barrels 63, the pressure storage barrels 63 are also connected with a connecting pipe 10, the connecting pipe 10 An air compressor 62 is connected to the other end of the pressure storage barrel 63, and four connecting pipes 10 are connected to the same air compressor 62. After the air compressor 62 is started, air can be inflated into the pressure storage barrel 63, so that the pigment in the pressure storage barrel 63 can be pressed into the conduit 9 and sprayed out through the nozzle 8 of the spray gun 61; the spray gun 61 is located on the side of the outlet 5 of the machine head 3, and the nozzle 8 of the spray gun 61 is aligned with the center line of the outlet 5; the spray gun 61 also includes a trigger 612, and a trigger block 18 is provided on the side wall of the machine head 3 above the outlet 5. The upper surface of the trigger block 18 is an outwardly protruding arc surface 19. When the trigger 612 contacts the arc surface 19 and continues to rotate the rotating ring 13, the trigger 612 slides on the arc surface 19. When the spray gun 61 moves to the top of the outlet 5, the trigger block 18 presses the trigger 612 tightly, so that the spray gun 61 can spray pigment for spraying.

[0034] A baffle 11 is provided on the side wall of the machine head 3 above the outlet 5. The baffle 11 includes a first plate body 111 and a second plate body 112. A sliding groove 115 for transverse sliding is provided on the side wall of the machine head 3. Two T-shaped sliding blocks 114 are slidingly connected in the sliding groove 115 (when installing, the sliding block 114 is divided into an upper and a lower half. After being installed in the sliding groove 115, the two halves of the sliding block 114 are welded together). The sliding block 114 is positioned in the sliding groove 115 by bolts 113. The first plate body 111 and the second plate body 112 are respectively fixed on one of the sliding blocks 114. The space between the first plate body 111 and the second plate body 112 is The gap constitutes a spray port 12, and the size of the spray port 12 can be adjusted by adjusting the size of the gap between the first plate 111 and the second plate 112. When the spray gun 61 is located directly above the outlet 5, the nozzle 8 of the spray gun 61 is aligned with the spray port 12; the lower ends of the first plate 111 and the second plate 112 are respectively connected with material receiving troughs 15, and part of the paint sprayed from the spray gun 61 will be sprayed on the upper surfaces of the first plate 111 and the second plate 112, so that the paint on the first plate 111 and the second plate 112 will slide down when it accumulates to a certain amount, and can directly slide into the material receiving trough 15 for storage, and is not easy to fall to the ground.

[0035] like Figure 3 and Figure 4 As shown, a positioning member 14 is provided between the machine body and the rotating ring 13, and the positioning member 14 includes a fixing block 141, a positioning rod 142, an elastic member 143 and a positioning bead 144. The fixing block 141 is fixedly arranged on the outer wall of the machine body, and a threaded hole 21 is provided on the side of the fixing block 141 facing the rotating ring 13, and an external thread matching the threaded hole 21 is provided on the outer wall of the positioning rod 142. The positioning rod 142 is screwed into the threaded hole 21, and a mounting groove 145 is provided at one end of the positioning rod 142 facing the threaded hole 21, and a through hole 16 connected to the mounting groove 145 is provided at the other end. The diameter of the through hole 16 is smaller than the diameter of the positioning bead 144, and the elastic member 143 and the positioning bead 144 are respectively installed in the mounting groove In 145, the elastic member 143 is a spring, one end of the spring is pressed against the bottom wall of the threaded hole 21, and the other end is pressed against the positioning bead 144. The positioning bead 144 protrudes out of the through hole 16. Four arc-shaped grooves 17 are provided on the side wall of the rotating ring 13. The four arc-shaped grooves 17 correspond to four spray guns 61 respectively. When the positioning bead 144 is clamped in the arc-shaped groove 17, the spray gun 61 corresponding to the arc-shaped groove 17 is just aligned with the spray port 12, and the trigger 612 of the spray gun 61 is just pressed against the trigger block 18; an arc plate 20 is provided on the end of one end of the outlet 5 of the head 3, and the arc plate 20 is concentrically arranged with the outlet 5. The arc plate 20 can prevent the guide rail from touching the cable.

[0036] The working principle of this embodiment is as follows: the metal wire will be slowly unwound from the unwinding device, enter from the inlet 4 of the head 3, and then pass out from the outlet 5. During this period, the plastic will be melted by the high temperature of the extruder body and enter the head 3 so that it will adhere to and cover the surface of the metal wire to form the outer sheath of the cable. At the same time, the spray gun 61 above the outlet 5 of the head 3 will spray the paint on the outer sheath of the cable that has just been injected. After the sprayed cable is cooled, the paint can be stably attached to the outer sheath of the cable. When it is necessary to spray another color on the outer sheath of the cable, it is only necessary to rotate the rotating ring 13. After the rotating ring 13 rotates, the trigger 612 on the original spray gun 61 will be disengaged from the trigger block 18, causing the original spray gun 61 to stop spraying. In addition, when the positioning bead 144 is connected to another arc-shaped groove, the trigger 612 on the next spray gun 61 will be squeezed onto the trigger block 18, and the trigger block 18 will press against the trigger 612 on the next spray gun 61 to trigger the spray gun 61 to spray. In this process, the extruder does not need to be stopped to change the color, which is more convenient and simple to replace. At the same time, it can reduce the waste of raw materials and further improve production efficiency.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable sheathing extruder, comprising an extruder body (1) with a feed port and a discharge port, wherein the feed port of the extruder body (1) is connected to a feed hopper (2), the discharge port of the extruder body (1) is connected to a head (3), one end of the head (3) is provided with an inlet (4) for metal wire to enter, and the other end is provided with an outlet (5) interconnected with the inlet (4), characterized in that: A spraying mechanism (6) is provided at one end of the outlet (5) of the machine head (3), and the spraying mechanism (6) includes a spray gun (61), an air compressor (62) and a plurality of pressure storage barrels (63). The spray gun (61) is provided with a feed port (7) and a nozzle (8), and the nozzle (8) faces the center line of the outlet (5) of the machine head (3). The pressure storage barrels (63) are all connected with a conduit (9). The pressure storage barrel (63) is connected with the feed port (7) of the spray gun (61) through the conduit (9). The conduit (9) and the spray gun (61) are connected by threads. The conduit (9) penetrates into the pressure storage barrel (63). The pressure storage barrel (63) is connected to the air compressor (62) through a connecting pipe (10); A baffle (11) is provided at one end of the outlet (5) of the machine head (3), and a spray port (12) is provided through the baffle (11), and the spray port (12) faces the center line of the outlet (5) of the machine head (3); the spray gun (61) and the baffle (11) are located on the same side of the center line of the outlet (5), and the nozzle (8) of the spray gun (61) is aligned with the spray port (12); the machine head (3) comprises a machine body and a rotating ring (13) rotatably connected to the machine body, the rotating ring (13) is rotatably connected to the side wall of the machine body at one end of the outlet (5), a positioning member (14) is provided between the rotating ring (13) and the machine head (3), the spray gun (61) is provided with a plurality of handles and is connected to corresponding pressure storage barrels (63) in a one-to-one correspondence, and the The spray gun (61) is fixed on the rotating ring (13); the baffle (11) includes a first plate body (111) and a second plate body (112); the gap between the first plate body (111) and the second plate body (112) constitutes a spray port (12); the first plate body (111) and the second plate body (112) are both horizontally slidably connected to the machine head (3); the first plate body (111) and the second plate body are both positioned with the machine body by bolts (113); the positioning member (14) includes a fixed block (141), a positioning rod (142), an elastic member (143) and a positioning bead (144); the fixed block (141) is fixed on the outer wall of the machine head (3); the positioning rod (142) and the fixed block (141) are threaded The positioning rod (142) is connected to the fixing block (141) by threading, and one end thereof is provided with a mounting groove (145), and the other end thereof is provided with a through hole (16) which is interconnected with the mounting groove (145), and the diameter of the through hole (16) is smaller than the diameter of the positioning bead (144), and the elastic member (143) and the positioning column are installed in the mounting groove (145), and one end of the elastic member (143) abuts against the fixing block (141), and the other end abuts against the positioning bead (144), and the positioning bead (144) protrudes out of the through hole (16), and the side wall of the rotating ring (13) is provided with a plurality of arc-shaped grooves (17) which are engaged with the positioning bead (144), and the arc-shaped grooves (17) correspond one to one with the spray gun (61);The spray gun (61) comprises a trigger (612) for controlling its opening and closing. A trigger block (18) is provided at one end of the outlet (5) of the machine head (3). The trigger block (18) is located above the outlet (5). The upper surface of the trigger block (18) is an outwardly protruding arc surface (19). When the positioning bead (144) is clamped in the arc-shaped groove (17), the arc surface (19) of the trigger block (18) is pressed against the trigger of the spray gun (61) above. (612); an arc plate (20) is provided on the die head (3) at one end relative to the outlet (5), the arc plate (20) is located between the spray guns (61), and the opening of the arc plate (20) is arranged toward the baffle (11); the metal wire is slowly unwound from the unwinding device, enters from the inlet (4) of the die head (3), and then passes out from the outlet. During this period, the plastic is melted by the high temperature of the extruder body and enters the die head (3) to adhere to the package The outer sheath of the cable is formed by covering the surface of the metal wire, and the spray gun (61) above the outlet (5) of the machine head (3) sprays the paint on the outer sheath of the cable that has just been injected. After the sprayed cable is cooled, the paint can be stably attached to the outer sheath of the cable. When it is necessary to spray another color on the outer sheath of the cable, it is only necessary to rotate the rotating ring (13). After the rotating ring (13) rotates, the trigger (612) on the original spray gun (61) will be separated from the trigger block (18), so that the original spray gun (61) stops spraying. In addition, when the positioning bead (144) is connected to another arc-shaped groove, the trigger (612) on the next spray gun (61) will be squeezed onto the trigger block (18), and the trigger block (18) will press against the trigger (612) on the next spray gun (61), triggering the spray gun (61) to spray. In this process, the extruder does not need to stop to change the color. ; 2. A cable cladding extruder according to claim 1, characterized in that: The baffle (11) is located above the outlet (5); the first plate (111) and the second plate (112) are both arranged at an angle; the first plate (111) and the second plate (112) gradually approach each other from a side close to the center line of the outlet (5) of the machine head (3) to a side far away from the center line; and the maximum distance between the first plate (111) and the second plate (112) is greater than the diameter of the outlet (5).

3. A cable cladding extruder according to claim 2, characterized in that: The first plate body (111) and the second plate body (112) are respectively provided with material receiving grooves (15) at the bottom.

Images