Extruder for cables with automatic feed

Abstract

The utility model relates to cable processing equipment technical field, the utility model provides a kind of extruding machine for cable with automatic feeding, including cable extruding machine body, the feeding bin is communicated and is arranged on cable extruding machine body, second grinding wheel is provided inside the feeding bin, the side of second grinding wheel is symmetrically provided with first grinding wheel;First grinding wheel is fixedly connected with first worm wheel by crossing feeding bin, second grinding wheel is fixedly connected with second worm wheel by crossing feeding bin;Motor drives worm body rotation, utilizes the worm screw of symmetric reverse setting and drives worm wheel, makes first grinding wheel and second grinding wheel rotate towards each other, can sufficiently crush and break the caked raw material of entering the feeding bin, ensure that the raw material that enters extruding machine body is in dispersed state, avoid the problem that plasticization is not sufficient due to raw material caking, ensure that extruding operation is carried out smoothly.

Description

Technical Field

[0001] This utility model relates to the field of cable processing equipment technology, specifically to a cable extruder with automatic feeding. Background Technology

[0002] In cable production, the extruder is a crucial piece of equipment for uniformly coating the cable core with plastic material. Traditional cable extruders often face the problem of raw material agglomeration during the feeding stage, especially when humidity changes or storage conditions are poor, plastic particles easily clump together. When these agglomerated raw materials directly enter the extruder, it leads to uneven plasticization, requiring extended heating time to ensure complete melting, significantly reducing production efficiency. It can also cause quality defects such as uneven cable surface and thickness. Furthermore, traditional extruders lack effective pre-treatment structures at the feed inlet, and lumpy materials can clog the feed channel, leading to equipment downtime and increased production costs. While some improved equipment uses grinding devices, these suffer from complex structures, difficult maintenance, and high replacement costs after wear. Therefore, a cable extruder with automatic feeding is proposed. Utility Model Content

[0003] This utility model proposes a cable extruder with automatic feeding. The worm gear body is driven to rotate by a motor. The worm gear helix, which is arranged in opposite directions, drives the worm wheel, so that the first grinding wheel and the second grinding wheel rotate in opposite directions. This can fully crush and break up the agglomerated raw materials entering the feed hopper, ensuring that the raw materials entering the extruder body are in a dispersed state. This avoids the problem of insufficient plasticization caused by raw material agglomeration and ensures smooth extrusion operation.

[0004] According to one aspect, at least one embodiment of the present invention provides an extruder for cables with automatic feeding, comprising:

[0005] A cable extruder body, wherein a feeding hopper is connected to the cable extruder body, a second grinding wheel is provided inside the feeding hopper, and a first grinding wheel is symmetrically arranged on the side of the second grinding wheel;

[0006] The first grinding wheel is fixedly connected to a first worm gear through the feed hopper. The first worm gear is rotatably connected and disposed outside the feed hopper. The second grinding wheel is fixedly connected to a second worm gear through the feed hopper. The second worm gear is rotatably connected and disposed outside the feed hopper.

[0007] A worm body is provided below the first worm wheel. A worm helix is ​​fixedly connected to the outer wall of the worm body. A motor is provided at one end of the worm body. The motor is fixedly connected to the outside of the feed hopper. The output end of the motor is fixedly connected to the worm body.

[0008] For example, at least one embodiment of the present invention provides a cable extruder with automatic feeding, which further includes: two sets of worm screws arranged symmetrically on the worm body, the two sets of worm screws being arranged in opposite directions, the worm screws being threadedly connected to the first worm wheel, and the other worm screw being threadedly connected to the second worm wheel.

[0009] For example, at least one embodiment of the present invention provides a cable extruder with automatic feeding, which further includes: stabilizing blocks are sleeved at both ends of the worm gear body, the stabilizing blocks are fixedly connected to the feed hopper, and the stabilizing blocks are rotatably connected to the worm gear body.

[0010] For example, at least one embodiment of the present invention provides a cable extruder with automatic feeding, which further includes: grinding teeth blocks fixedly connected to the outer walls of both the second grinding wheel and the first grinding wheel, the grinding teeth blocks being distributed in a ring shape on the outer walls of the second grinding wheel and the first grinding wheel.

[0011] For example, at least one embodiment of the present invention provides an extruder for cables with automatic feeding, which further includes: the grinding teeth are trapezoidal in shape, and an array of conical shapes are distributed on the surface of the grinding teeth.

[0012] For example, at least one embodiment of the present invention provides an extruder for cables with automatic feeding, which further includes: a detachable collar sleeved on the outer wall surface of the second grinding wheel and the first grinding wheel, and the surface of the detachable collar sleeved on the outer wall surface of the second grinding wheel and the first grinding wheel is provided with a grid-like tooth pattern.

[0013] For example, at least one embodiment of the present invention provides an extruder for cables with automatic feeding, which further includes: the grinding teeth are distributed alternately between the second grinding wheel and the first grinding wheel, and the detachable collars fitted on the outer wall surfaces of the second grinding wheel and the first grinding wheel are disposed in the gaps between the transversely arranged grinding teeth of each group.

[0014] For example, at least one embodiment of the present invention provides a cable extruder with automatic feeding, which further includes: a guide plate fixedly connected inside the feeding hopper, the guide plate being arranged symmetrically and obliquely.

[0015] The working principle and beneficial effects of this utility model are as follows: The worm gear body is driven to rotate by a motor. The symmetrically arranged, counter-rotating worm helices drive the worm wheels, causing the first and second grinding wheels to rotate in opposite directions. This fully crushes and breaks down the agglomerated raw materials entering the feed hopper, ensuring that the raw materials entering the extruder are dispersed. This avoids insufficient plasticization caused by raw material agglomeration and guarantees smooth extrusion operation. Stabilizing blocks are fitted at both ends of the worm gear body, fixed to the feed hopper and rotatably connected to the worm gear body. When the motor drives the worm gear to rotate, it effectively limits worm gear sway, ensuring the stability of the transmission system, reducing equipment wear caused by unstable transmission components, and extending the equipment's service life.

[0016] The trapezoidal and conical grinding teeth on the outer wall of the second grinding wheel and the first grinding wheel, together with the detachable mesh toothed collar, grind and crush the raw material from different angles. The grinding teeth can penetrate deep into the agglomerate for crushing, and the mesh toothed collar increases friction to assist in crushing. The multi-angle synergy improves the grinding effect and further refines the raw material particles. At the same time, the detachable collar can be easily replaced after wear, reducing the difficulty and cost of equipment maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the cable extruder in one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the feed hopper in one embodiment of the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of the second grinding wheel in one embodiment of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of the structure at point A in the embodiment;

[0022] In the diagram: 1. Cable extruder body; 2. Feed hopper; 3. Motor; 4. Worm gear body; 5. Stabilizing block; 6. Worm gear helix; 7. First worm wheel; 8. Second worm wheel; 9. First grinding wheel; 10. Second grinding wheel; 11. Grinding tooth block; 12. Guide plate. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0024] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] 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.

[0029] Refer to the instruction manual appendix Figure 1-4An extruder for cables with automatic feeding includes: a cable extruder body 1, a feeding hopper 2 connected to the cable extruder body 1, a second grinding wheel 10 disposed inside the feeding hopper 2, and first grinding wheels 9 symmetrically arranged on the sides of the second grinding wheel 10; a first worm gear 7 fixedly connected to the first grinding wheel 9 through the feeding hopper 2, the first worm gear 7 being rotatably connected to the outside of the feeding hopper 2; a second worm gear 8 fixedly connected to the second grinding wheel 10 through the feeding hopper 2, the second worm gear 8 being rotatably connected to the outside of the feeding hopper 2; a worm body 4 disposed below the first worm gear 7, a worm helix 6 fixedly connected to the outer wall of the worm body 4, a motor 3 disposed at one end of the worm body 4, the motor 3 being fixedly connected to the outside of the feeding hopper 2, and the output end of the motor 3 being fixedly connected to the worm body 4; the worm helix 6 being symmetrically arranged on the worm body 4. Two sets of worm gears 6 are provided, with the two sets of worm gears 6 arranged in opposite directions. The worm gear 6 is threadedly connected to the first worm wheel 7, and the other worm gear 6 is threadedly connected to the second worm wheel 8. The cable extruder body 1 serves as the basic frame of the equipment, and a feeding hopper 2 is connected to it. The feeding hopper 2 is a key structure for realizing automatic feeding and raw material pretreatment. Inside the feeding hopper 2, a second grinding wheel 10 is provided, and a first grinding wheel 9 is symmetrically arranged on the side of the second grinding wheel 10. The three of them constitute the main raw material grinding structure. The first grinding wheel 9 passes through the side wall of the feeding hopper 2 and is fixedly connected to the first worm wheel 7 on the outside of the feeding hopper 2. The first worm wheel 7 is connected to the feeding hopper 2 through rotating parts such as bearings, realizing a rotatable connection. Similarly, the second grinding wheel 10 passes through the side wall of the feeding hopper 2 and is fixedly connected to the second worm wheel 8. The second worm wheel 8 is also rotatably connected on the outside of the feeding hopper 2.

[0030] The drive assembly consists of a motor 3, a worm body 4, and a worm helix 6. The motor 3 is fixedly installed on the outside of the feed hopper 2, and its rotation output end is fixedly connected to the worm body 4 through a coupling and other components to ensure stable power transmission. The outer wall of the worm body 4 is wound and fixedly connected with the worm helix 6. Two sets of worm helices 6 are symmetrically arranged on the worm body 4, and the helical directions of the two sets of worm helices 6 are opposite. This special design allows the worm helix 6 to achieve transmission cooperation with different worm wheels. One set of worm helices 6 is threadedly connected to the first worm wheel 7, and the other set of worm helices 6 is threadedly connected to the second worm wheel 8.

[0031] When the feed hopper 2 on the cable extruder body 1 is feeding material, the raw materials may clump during storage and transportation. If these clumps directly enter the cable extruder body 1, it will reduce the extrusion efficiency and even affect the extrusion quality. At this time, by starting the motor 3, the power output of the motor 3 drives the worm body 4 to rotate. The rotation of the worm body 4 in turn drives the worm screw 6 wound on its outer wall to rotate synchronously. Due to the threaded connection between the worm screw 6 and the first worm wheel 7 and the second worm wheel 8, the rotation of the worm screw 6 will drive the first worm wheel 7 and the second worm wheel 8. The first worm gear 7 and the second worm gear 8 rotate, and then drive the first grinding wheel 9 and the second grinding wheel 10, which are fixedly connected to them, to rotate inward. During the inward rotation of the first grinding wheel 9 and the second grinding wheel 10, the agglomerated raw material entering the feed hopper 2 will be crushed and ground by the second grinding wheel 10 and the first grinding wheel 9. The agglomerated material is broken up and enters the body 1 of the cable extruder in a dispersed state. Compared with traditional extruders, the raw material is evenly dispersed into the equipment, which makes the material inside the extruder more fully plasticized and effectively reduces the problem of prolonged extrusion time caused by raw material agglomeration.

[0032] To ensure the stability of the drive assembly, stabilizing blocks 5 are fitted at both ends of the worm gear body 4. The stabilizing blocks 5 are fixedly connected to the feed hopper 2 by bolts or other connecting parts. At the same time, rotating components such as bearings are installed inside the stabilizing blocks 5, so that the stabilizing blocks 5 and the worm gear body 4 are rotatably connected. In this way, when the motor 3 drives the worm gear body 4 to rotate, the worm gear body 4 can rotate smoothly inside the stabilizing blocks 5, avoiding the reduction in transmission efficiency and equipment wear caused by the wobbling of the worm gear body 4, extending the service life of the equipment and reducing equipment maintenance costs.

[0033] Regarding the grinding components, to further improve the grinding effect, grinding teeth 11 are fixedly connected to the outer walls of both the second grinding wheel 10 and the first grinding wheel 9. The grinding teeth 11 are evenly distributed in a ring on the outer walls of the second grinding wheel 10 and the first grinding wheel 9, and their shape is set as trapezoidal. Multiple sets of conical structures are distributed on the surface of the grinding teeth 11. This special combination of trapezoidal and conical structures increases the contact area and contact pressure between the grinding teeth 11 and the raw material agglomerates. During the grinding process, the trapezoidal structure can generate a large extrusion and crushing force on the raw material agglomerates, while the conical structure can insert into the agglomerates and further crush the agglomerates into smaller particles. Compared with ordinary flat grinding wheels, the grinding effect is improved.

[0034] In addition, the outer surfaces of the second grinding wheel 10 and the first grinding wheel 9 are fitted with detachable collars. The surface of the detachable collars is provided with a grid-like tooth pattern, which increases the friction between the collars and the raw materials. At the same time, the grinding teeth 11 are staggered on the second grinding wheel 10 and the first grinding wheel 9, and the detachable collars are fitted into the gaps between the transversely arranged grinding teeth 11 in each group. This structural design allows the detachable collars and grinding teeth 11 to work together during the grinding process to grind and break up the raw material agglomerates from different angles, further improving the grinding effect of the second grinding wheel 10 and the first grinding wheel 9. When the detachable collars are severely worn, they can be easily disassembled and replaced, reducing the difficulty and cost of equipment maintenance.

[0035] Inside the feed hopper 2, a guide plate 12 is fixedly connected. The guide plate 12 is symmetrically arranged and inclined. This inclined and symmetrical arrangement of the guide plate 12 can effectively guide the ground and crushed raw materials. Under the action of gravity and feeding power, the ground raw materials will slide smoothly down the inclined surface of the guide plate 12 and enter the body of the cable extruder 1 to complete the subsequent extrusion operation. Compared with a structure without a guide plate, the raw materials can enter the body of the extruder more accurately and efficiently, reducing the accumulation and residue of raw materials in the feed hopper and improving the utilization rate of raw materials.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cable extruder with automatic feeding, characterized in that, include: The cable extruder body (1) is connected to the cable extruder body (1) and a feeding hopper (2) is provided on it. A second grinding wheel (10) is provided inside the feeding hopper (2) and a first grinding wheel (9) is symmetrically arranged on the side of the second grinding wheel (10). The first grinding wheel (9) is fixedly connected to the first worm gear (7) through the feed hopper (2). The first worm gear (7) is rotatably connected to the outside of the feed hopper (2). The second grinding wheel (10) is fixedly connected to the second worm gear (8) through the feed hopper (2). The second worm gear (8) is rotatably connected to the outside of the feed hopper (2). A worm body (4) is provided below the first worm wheel (7). A worm helix (6) is fixedly connected to the outer wall of the worm body (4). A motor (3) is provided at one end of the worm body (4). The motor (3) is fixedly connected to the outside of the feed bin (2). The rotation output end of the motor (3) is fixedly connected to the worm body (4).

2. The cable extruder with automatic feeding according to claim 1, characterized in that, Two sets of worm helices (6) are symmetrically arranged on the worm body (4). The two sets of worm helices (6) are arranged in opposite directions. The worm helices (6) are threadedly connected to the first worm wheel (7), and the other worm helice (6) is threadedly connected to the second worm wheel (8).

3. The cable extruder with automatic feeding according to claim 1, characterized in that, The worm gear body (4) is fitted with stabilizing blocks (5) at both ends. The stabilizing blocks (5) are fixedly connected to the feed hopper (2) and are rotatably connected to the worm gear body (4).

4. The cable extruder with automatic feeding according to claim 1, characterized in that, The second grinding wheel (10) and the outer wall of the first grinding wheel (9) are both fixedly connected with grinding teeth (11), and the grinding teeth (11) are distributed in a ring on the outer wall of the second grinding wheel (10) and the first grinding wheel (9).

5. A cable extruder with automatic feeding according to claim 4, characterized in that, The grinding tooth block (11) is trapezoidal in shape, and the surface of the grinding tooth block (11) is provided with an array of conical shapes.

6. The cable extruder with automatic feeding according to claim 1, characterized in that, The second grinding wheel (10) and the outer wall surface of the first grinding wheel (9) are fitted with detachable collars, and the surface of the detachable collars fitted on the outer wall surfaces of the second grinding wheel (10) and the first grinding wheel (9) is provided with grid-like teeth.

7. A cable extruder with automatic feeding according to claim 4, characterized in that, The grinding teeth (11) are distributed alternately on the second grinding wheel (10) and the first grinding wheel (9). The detachable collars fitted on the outer wall surfaces of the second grinding wheel (10) and the first grinding wheel (9) are set in the gaps between the transversely arranged grinding teeth (11).

8. The cable extruder with automatic feeding according to claim 1, characterized in that, The feed hopper (2) is fixedly connected to a guide plate (12), which is arranged symmetrically and obliquely.

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