An extruder for cables with adjustable thickness

Abstract

The present disclosure relates to the technical field of cable extruders, and one embodiment of the present disclosure provides an adjustable-thickness cable extruder, which comprises an extruder body placed on a support table, a die holder is installed at an extrusion port of the extruder body, and the adjustable-thickness cable extruder further comprises a moving frame, a replacement disc and a moving placement assembly; the moving frame is slidingly installed on the support table; the replacement disc is rotatably installed on the moving frame through a rotating assembly; a mounting plate is fixedly installed on a side surface of the moving frame; a rotating shaft is fixedly installed on a side surface of the replacement disc; a rotating tooth ring is fixedly installed on the rotating shaft; a driving assembly is arranged on the mounting plate; four dies are rotatably installed on the replacement disc; the moving placement assembly is arranged on a placement table; and the moving frame is arranged on the moving placement assembly. Through the above technical solution, the technical problem that it is necessary to disassemble and replace different dies when extruding cables of different thicknesses in the prior art is solved, and the technical problem is relatively laborious.

Description

Technical Field

[0001] Embodiments of this disclosure relate to the field of cable extruder technology, and more specifically, to a cable extruder with adjustable extrusion thickness. Background Technology

[0002] Cable extruders are key equipment in wire and cable production used to uniformly extrude and coat insulation or sheathing materials such as plastic onto conductors or cable cores. Their core function is to achieve continuous coating of cable insulation and sheathing layers through high-temperature melting, pressurized conveying, and die forming, ensuring that the cable has electrical insulation, mechanical protection, and other properties.

[0003] When extruding cables, a die is usually installed at the extrusion port of the extruder. The thickness and size of the extruded cable are controlled according to the size of the die. When different cable sizes need to be extruded, it is necessary to disassemble and install dies of different sizes. When changing dies, it is necessary to disassemble the die and find a die of other sizes and then install it. Therefore, it is quite troublesome and difficult to change dies quickly. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this disclosure provide a cable extruder with adjustable extrusion thickness, which solves the technical problem in the prior art that different dies need to be disassembled and replaced when extruding cables of different thicknesses, which is quite laborious.

[0005] According to one aspect, at least one embodiment of this disclosure provides a cable extruder with adjustable extrusion thickness, including an extruder body placed on a support platform, a die holder mounted at the extrusion port of the extruder body, a movable frame, a changing disc, and a movable placement assembly. The movable frame is slidably mounted on the support platform, the changing disc is rotatably mounted on the movable frame via a rotating assembly, and four dies with different extrusion ports are rotatably mounted on the changing disc. The movable placement assembly is disposed on the support platform, and the movable frame is disposed on the movable placement assembly. Furthermore, the rotating assembly includes a mounting plate, a rotating shaft, a rotating gear ring, and a drive assembly. The mounting plate is fixedly mounted on the side of the movable frame, the rotating shaft is fixedly mounted on the side of the changing disc, the rotating gear ring is fixedly mounted on the rotating shaft, and the drive assembly is disposed on the mounting plate.

[0006] Furthermore, the drive assembly includes a first motor, a drive shaft, and a drive gear. The first motor is mounted on the mounting plate, the drive shaft is rotatably mounted on the mounting plate via a support frame, and the output end of the first motor is coaxially connected to the drive shaft. The drive gear is fixedly connected to the top end of the drive shaft and meshes with the rotating gear ring.

[0007] Furthermore, the movable placement assembly includes a support cover, a reciprocating screw, a second motor, and a synchronization component. Two support covers are fixedly installed on the top of the support platform. The reciprocating screw is rotatably installed in one of the support covers, and a matching crescent-shaped slider is installed on the reciprocating screw. The second motor is installed on the side of the support cover, and the output end of the second motor is coaxially connected to the reciprocating screw. The synchronization component is disposed in the other support cover.

[0008] Furthermore, the synchronization component includes a synchronization rod and a synchronization block. The synchronization rod is fixedly installed inside another support cover, the synchronization block is slidably installed on the synchronization rod, and the movable frame is fixedly installed between the crescent-shaped slider and the synchronization block.

[0009] Furthermore, a protective cover is detachably installed on the top of the support frame, and both the drive gear and the rotating gear ring are located inside the protective cover.

[0010] Furthermore, the four molds are mounted in a circle around the center of the replacement disc on the replacement disc.

[0011] Furthermore, the rotating shaft is coaxially connected to the center of the changing disc.

[0012] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, when changing the mold to extrude cables of different thicknesses, the rotating component can drive the changing disc to rotate, thereby rotating the four molds to the mold base of the extrusion port respectively. Then, the moving placement component moves the mold into the mold base for installation. Therefore, when installing different molds, they can be rotated to the mold base for installation quickly and conveniently. In summary, this device, through the cooperation between the movable frame, the changing disc, and the movable placement assembly, can rotate the changing disc to move different dies to the die holder for replacement when extruding cables of different sizes. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the structure of the movable frame, changing plate, mold, support frame, mounting plate, and rotating assembly of this utility model. Figure 3 This is a schematic diagram of the structure of the movable frame and the movable placement component of this utility model. Figure 4 This is a schematic diagram of the structure of the support platform, extruder body and die base of this utility model. In the diagram: 1. Support platform; 2. Extruder body; 3. Die base; 4. Moving frame; 5. Changing disc; 6. Mounting plate; 7. Rotating shaft; 8. Rotating gear ring; 9. First motor; 10. Drive shaft; 11. Drive gear; 12. Support cover; 13. Reciprocating screw; 14. Crescent slider; 15. Second motor; 16. Synchronization assembly; 17. Synchronization rod; 18. Synchronization block; 19. Protective cover; 20. Die; 21. Support frame. Detailed Implementation

[0015] The present disclosure 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 disclosure and are not intended to limit the scope of the disclosure.

[0016] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0017] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" 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 disclosure based on the specific circumstances.

[0018] In this disclosure, unless otherwise expressly 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.

[0019] 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 disclosure.

[0020] 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.

[0021] like Figures 1-4 As shown, it illustrates a cable extruder with adjustable extrusion thickness according to an embodiment of the present disclosure, including an extruder body 2 placed on a support platform 1, a die holder 3 installed at the extrusion port of the extruder body 2, a movable frame 4, a changing disc 5, and a movable placement assembly. The movable frame 4 is slidably mounted on the support platform 1, the changing disc 5 is rotatably mounted on the movable frame 4 via a rotating assembly, and four dies 20 with different extrusion ports are rotatably mounted on the changing disc 5. The movable placement assembly is disposed on the support platform 1, and the movable frame 4 is disposed on the movable placement assembly.

[0022] like Figure 2 and Figure 4As shown, when extruding cables, plastic granules are first placed into the feed hopper of the extruder body 2. The plastic granules in the extrusion cylinder are melted by the heating device on the extruder body 2. After melting, the molten granules are extruded through the die 20 by the conveying screw in the extrusion cylinder to form a cable. When cables of different thicknesses need to be produced, the rotating assembly can drive the changing disc 5 to rotate, thereby rotating different dies 20 to the die base 3 respectively. The rotating assembly includes a mounting plate 6, a rotating shaft 7, a rotating gear ring 8, and a drive assembly. The mounting plate 6 is fixedly installed on the side of the moving frame 4, the rotating shaft 7 is fixedly installed on the side of the changing disc 5, the rotating gear ring 8 is fixedly installed on the rotating shaft 7, and the drive assembly is set on the mounting plate 6. The drive assembly includes a first motor 9, a drive shaft 10, and a drive gear 11. The first motor 9 is installed on the mounting plate 6, the drive shaft 10 is rotatably installed on the mounting plate 6 through the support frame 21, and the output end of the first motor 9 is coaxially connected to the drive shaft 10. The drive gear 11 is fixedly connected to the top end of the drive shaft 10, and the drive gear 11 meshes with the rotating gear ring 8.

[0023] Specifically, because the rotating shaft 7 is coaxially connected to the center of the changing disk 5, and the four molds 20 are installed in a circle around the center of the changing disk 5, the first motor 9 can be started. The output end of the first motor 9 drives the drive shaft 10 to rotate, the drive shaft 10 drives the drive gear 11 to rotate, the drive gear 11 drives the rotating gear ring 8 that meshes with it to rotate, the rotating gear ring 8 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the changing disk 5 to rotate on the moving frame 4. It should be added that the mold 20 that rotates to the top of the changing disk 5 is at the same horizontal position as the mold base 3, and the extrusion outlet size of the four molds 20 is different. The outer side wall of the mold 20 and the inner side wall of the mold base 3 are provided with matching threaded holes, and the top of the support frame 21 is detachably equipped with a protective cover 19. The drive gear 11 and the rotating gear ring 8 are both located inside the protective cover 19, so the protective cover 19 can protect the meshing between the drive gear 11 and the rotating gear ring 8.

[0024] like Figure 3As shown, after rotation, the mold 20 can be moved close to the mold base 3 by the movable placement component. The movable placement component includes a support cover 12, a reciprocating screw 13, a second motor 15, and a synchronization component 16. Two support covers 12 are fixedly installed on the top of the support platform 1. The reciprocating screw 13 is rotatably installed in one of the support covers 12, and a matching crescent slider 14 is installed on the reciprocating screw 13. The second motor 15 is installed on the side of the support cover 12, and the output end of the second motor 15 is coaxially connected to the reciprocating screw 13. The synchronization component 16 is set in the other support cover 12. The synchronization component 16 includes a synchronization rod 17 and a synchronization block 18. The synchronization rod 17 is fixedly installed in the other support cover 12, and the synchronization block 18 is slidably installed on the synchronization rod 17. The movable frame 4 is fixedly installed between the crescent slider 14 and the synchronization block 18.

[0025] Specifically, starting the second motor 15 causes the output of the second motor 15 to drive the reciprocating screw 13 to rotate within the support cover 12. This allows the crescent-shaped slider 14 to move horizontally along the reciprocating screw 13. It should be noted that the shape of the crescent-shaped slider 14 matches the helical groove of the reciprocating screw 13. When the reciprocating screw 13 rotates, the sidewall of the helical groove exerts an axial thrust on the crescent-shaped slider 14 embedded within it. This allows the crescent-shaped slider 14 to move along the axial trajectory of the reciprocating screw 13, thus moving back and forth. When the crescent-shaped slider 14 reaches the... When the lead screw 13 reaches the end, the crescent-shaped slider 14 will smoothly transition to the reverse spiral groove, thereby achieving reciprocating movement. This is a well-known technology and will not be described in detail. With the connection of the moving frame 4, it can drive the synchronizing block 18 at the other end to move synchronously on the synchronizing rod 17, thereby causing the moving frame 4 to move the changing plate 5 and the mold 20 forward into the mold base 3. Then, the operator rotates the mold 20 to thread it into the mold base 3 for installation. The changing plate 5 can be moved slowly while the mold 20 is threaded into the mold base 3, thereby installing and connecting them.

[0026] Working principle: When changing mold 20, firstly, the first motor 9 is started. The output end of the first motor 9 drives the drive shaft 10 to rotate, the drive shaft 10 drives the drive gear 11 to rotate, the drive gear 11 drives the rotating gear ring 8 that meshes with it to rotate, the rotating gear ring 8 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the changing disc 5 to rotate on the moving frame 4, rotating the required mold 20 to the mold base 3. Then, the second motor 15 is started. The output end of the second motor 15 drives the reciprocating screw 13 to rotate inside the support cover 12, so that the crescent slider 14 can move horizontally on the reciprocating screw 13. Under the connection of the moving frame 4, it can drive the synchronous block 18 at the other end to move synchronously on the synchronous rod 17, thereby causing the moving frame 4 to move the changing disc 5 and the mold 20 forward into the mold base 3. Then, the operator rotates the mold 20 to thread it into the mold base 3 for installation. The changing disc 5 can be moved slowly while the mold 20 is threaded into the mold base 3, thus installing and connecting it.

[0027] It should be added that the reciprocating screw 13 is equipped with a telescopic protective cover to protect it. The extruder body 2 is installed in the factory for cable production. Therefore, the first motor 9 and the second motor 15 can be electrically connected to the power source in the factory through wires to supply power.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure 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 solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A cable extruder with adjustable extrusion thickness, comprising an extruder body (2) placed on a support platform (1), wherein a die holder (3) is installed at the extrusion port of the extruder body (2), characterized in that, Also includes: A movable frame (4) is slidably mounted on the support platform (1); Replacement disc (5), which is rotatably mounted on the movable frame (4) via a rotating assembly, and four molds (20) with different extrusion ports are rotatably mounted on the replacement disc (5). A movable placement component is disposed on the support platform (1), and the movable frame (4) is disposed on the movable placement component.

2. The cable extruder with adjustable extrusion thickness according to claim 1, characterized in that, The rotating component includes: Mounting plate (6), which is fixedly mounted on the side of the movable frame (4); A rotating shaft (7) is fixedly installed on the side of the changing disc (5); A rotating gear ring (8) is fixedly mounted on the rotating shaft (7); A drive component is disposed on the mounting plate (6).

3. The cable extruder with adjustable extrusion thickness according to claim 2, characterized in that, The driving component includes: The first motor (9) is mounted on the mounting plate (6); A drive shaft (10) is rotatably mounted on the mounting plate (6) via a support frame (21), and the output end of the first motor (9) is coaxially connected to the drive shaft (10). A drive gear (11) is fixedly connected to the top end of the drive shaft (10), and the drive gear (11) meshes with the rotating gear ring (8).

4. The cable extruder with adjustable extrusion thickness according to claim 3, characterized in that, The movable placement component includes: Support cover (12), two support covers (12) are fixedly installed on the top of the support platform (1). A reciprocating lead screw (13) is rotatably mounted inside one of the support covers (12), and a matching crescent slider (14) is mounted on the reciprocating lead screw (13). The second motor (15) is mounted on the side of the support cover (12), and the output end of the second motor (15) is coaxially connected to the reciprocating screw (13). Synchronization component (16) is disposed within another support cover (12).

5. A cable extruder with adjustable extrusion thickness according to claim 4, characterized in that, The synchronization component (16) includes: Synchronizing rod (17), which is fixedly installed inside another support cover (12); Synchronization block (18) is slidably mounted on synchronization rod (17), and the moving frame (4) is fixedly mounted between the crescent slider (14) and the synchronization block (18).

6. A cable extruder with adjustable extrusion thickness according to claim 3, characterized in that, The top of the support frame (21) is detachably fitted with a protective cover (19), and the drive gear (11) and the rotating gear ring (8) are both located inside the protective cover (19).

7. A cable extruder with adjustable extrusion thickness according to claim 1, characterized in that, The four molds (20) are mounted in a circle around the center of the replacement disc (5) on the replacement disc (5).

8. A cable extruder with adjustable extrusion thickness according to claim 2, characterized in that, The rotating shaft (7) is coaxially connected to the center of the changing disc (5).

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