Feeding device of extrusion equipment for cable insulation layer production

Abstract

The utility model discloses an extrusion equipment feeding device for cable insulation layer production, which comprises an outer cylinder and a flow limiting cylinder, the flow limiting cylinder is positioned in the inner cavity of the outer cylinder, a material channel is reserved between the outer cylinder and the flow limiting cylinder, the top end of the outer cylinder is provided with a top cover, the outer wall of the outer cylinder is provided with a communication port, and the communication port is communicated with the flow limiting cylinder. One end of the communicating port extends into an inner cavity of the material channel, the other end of the communicating port penetrates through and extends out of the outer wall of the top cover, a lifting seat is installed at the top end of the top cover, the lifting seat penetrates through and extends out of the top end of the top cover, a screw cylinder is rotationally installed at the top end of the top cover, and the screw cylinder is in threaded connection with the outer wall of the lifting seat. According to the feeding device of the extrusion equipment for cable insulation layer production, in actual use, the flow of the discharging port of the feeding mechanism can be controlled, materials are prevented from being blocked at the outlet, meanwhile, the flow is adjustable, the flexibility is improved, color masterbatch and raw materials can be output together and premixed at the initial stage, the subsequent mixing time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a feeding device for an extrusion equipment in the production of cable insulating layers. Background Technique

[0002] A cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires; after the single wires of the cable are processed, a bunching machine is needed to twist several single wires into one strand, and then an insulating layer is sleeved. The materials of the insulating layer are generally divided into two types: rubber and plastic. According to the requirements of different types of cables, insulating layers of different colors will be used. Among them, when the plastic insulating layer is produced, plastic particles are usually mixed with color masterbatches of different colors, and then sent to equipment such as an extruder for processing to obtain a plastic insulating layer of the corresponding color; when the two are mixed and extruded at present, a feeding mechanism is needed to send the raw materials into the relevant equipment. However, the outlets of the feeding structures used at present are all integral outlets, and the materials are directly discharged after being lifted. Therefore, if a large amount of materials gush out of the feeding mechanism, it is easy to cause blockage at the outlet. At the same time, the existing raw materials and color masterbatches are put in separately, and it takes a long time to mix to ensure uniform dispersion of the color masterbatch, which increases the time cost and reduces the efficiency. Based on the above problems, a feeding device for an extrusion equipment in the production of cable insulating layers is now proposed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a feeding device for an extrusion equipment in the production of cable insulating layers, so as to solve the problems that the existing feeding mechanism is easy to cause a large amount of materials to be blocked at the outlet and the color masterbatch needs a long time to mix in the above-mentioned background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A feeding device for an extrusion equipment in the production of cable insulating layers, comprising: an outer cylinder and a current-limiting cylinder. The current-limiting cylinder is located in the inner cavity of the outer cylinder, and there is a material channel between the outer cylinder and the current-limiting cylinder. A top cover is installed at the top end of the outer cylinder. A communication port is installed on the outer wall of the outer cylinder. One end of the communication port extends into the inner cavity of the material channel, and the other end of the communication port penetrates and extends out of the outer wall of the top cover. A lifting seat is installed at the top end of the top cover, and the lifting seat penetrates and extends out of the top end of the top cover. A screw cylinder is rotatably installed at the top end of the top cover, and the screw cylinder is screwed on the outer wall of the lifting seat.

[0005] Preferably, a top plate is installed at the top end of the lifting seat. Two limiting rods are symmetrically installed at the top end of the top cover, and the top plate is slidably sleeved on the outer walls of the limiting rods.

[0006] Preferably, a masterbatch storage box is rotatably installed at the top end of the top plate. A plurality of outlets are circumferentially formed at the bottom end of the masterbatch storage box. A feeding pipe is vertically and penetratingly formed in the inner cavities of the top plate, the lifting seat and the flow-limiting cylinder. The number of the feeding pipes is several, and the several feeding pipes respectively correspond to the several outlets.

[0007] Preferably, several groups of positioning parts are equidistantly arranged along the circumferential direction at the bottom end of the outer wall of the masterbatch storage box.

[0008] The positioning part includes: a spring, one end of the spring is installed on the inner wall of the masterbatch storage box, the other end of the spring is installed with a clamping ball, and the clamping ball extends out of the inner cavity of the masterbatch storage box.

[0009] Preferably, several clamping grooves are equidistantly formed along the circumferential direction on the inner wall of the top plate, and the number of the clamping grooves is twice that of the limiting parts. The outer wall of the clamping ball is embedded in the inner cavity of the clamping groove.

[0010] Preferably, the length of the end of the clamping ball extending out of the inner cavity of the masterbatch storage box is less than its own radius.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the feeding device of the extrusion equipment for producing the cable insulating layer, the communication port in the equipment is connected to the outlet of the external elevator. The material enters the inner cavity of the material channel through the communication port. The inner cavity of the material channel restricts the flow rate of the falling material, ensuring that the material flow rate is less than the outlet, avoiding blockage. At the same time, the height of the flow-limiting cylinder is adjustable, thereby changing the size of the material channel and the flow rate. Through the outlet and the feeding pipe, the masterbatch particles in the masterbatch storage box and the raw material in the material channel are output together, realizing the preliminary mixing of the two, shortening the subsequent mixing time. In actual use, it can control the flow rate of the discharge port of the feeding mechanism, avoid the material from being blocked at the outlet, and at the same time the flow rate is adjustable, improving the flexibility. It can also output the masterbatch and the raw material together, pre-mix the two at the initial stage, shorten the subsequent mixing time, and improve the working efficiency. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the present utility model.

[0013] Figure 2 It is a front sectional view of the lifting seat of the present utility model.

[0014] Figure 3 It is a top sectional view of the masterbatch storage box of the present utility model.

[0015] Figure 4 It is an enlarged view of part A of the present utility model.

[0016] In the figure: 1. Outer cylinder, 2. Flow-limiting cylinder, 3. Material passage, 4. Connecting port, 5. Top cover, 6. Lifting seat, 7. Screw cylinder, 8. Top plate, 9. Limit rod, 10. Color masterbatch storage box, 11. Outlet, 12. Feeding pipe, 13. Spring, 14. Ball, 15. Card slot. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-4 , the present invention provides a technical solution for a feeding device of an extrusion equipment for producing a cable insulation layer: a feeding device of an extrusion equipment for producing a cable insulation layer, including: an outer cylinder 1 and a flow-limiting cylinder 2. The flow-limiting cylinder 2 is located in the inner cavity of the outer cylinder 1, and there is a material passage 3 between the outer cylinder 1 and the flow-limiting cylinder 2. Among them, the inner cavity of the outer cylinder 1 is conical, and the outer wall of the flow-limiting cylinder 2 is a cone adapted to the shape of the inner cavity of the outer cylinder 1. When the flow-limiting cylinder 2 moves upward, the thickness of the inner cavity of the material passage 3 can be increased, and vice versa. A top cover 5 is installed at the top end of the outer cylinder 1, and a connecting port 4 is installed on the outer wall of the outer cylinder 1. One end of the connecting port 4 extends into the inner cavity of the material passage 3, and the other end of the connecting port 4 penetrates and extends out of the outer wall of the top cover 5. A lifting seat 6 is installed at the top end of the top cover 5, and the lifting seat 6 penetrates and extends out of the top end of the top cover 5. The outer wall of the lifting seat 6 is provided with a thread, and a screw cylinder 7 is rotatably installed at the top end of the top cover 5, and the screw cylinder 7 is screwed on the outer wall of the lifting seat 6. When the screw cylinder 7 rotates, it can have a relative displacement with the top cover 5. A top plate 8 is installed at the top end of the lifting seat 6, and two limit rods 9 are symmetrically installed at the top end of the top cover 5, and the top plate 8 is slidably sleeved on the outer walls of the limit rods 9. The limit of the limit rods 9 can prevent the top plate 8 and the lifting seat 6 from rotating, ensuring that when the screw cylinder 7 rotates, the lifting seat 6 can only move up and down.

[0019] As a preferred solution, further, a color masterbatch storage box 10 is rotatably installed at the top end of the top plate 8. The color masterbatch storage box 10 contains color masterbatch particles. A plurality of outlets 11 are circumferentially opened at the bottom end of the color masterbatch storage box 10. A feeding pipe 12 is axially penetrated from top to bottom in the inner cavities of the top plate 8, the lifting seat 6 and the flow-limiting cylinder 2. The number of the feeding pipes 12 is several, and several feeding pipes 12 correspond to several outlets 11 respectively. When they correspond to each other, the color masterbatch in the color masterbatch storage box 10 can be discharged through the outlets 11 and the feeding pipes 12. When the color masterbatch storage box 10 rotates and the outlets 11 and the feeding pipes 12 are misaligned, the passage of the outlets 11 is blocked and the color masterbatch stops falling.

[0020] To facilitate the rotational positioning of the masterbatch storage box 10, the following solution is proposed: A plurality of groups of positioning parts are equidistantly arranged along the circumferential direction at the bottom end of the outer wall of the masterbatch storage box 10; the positioning part includes: a spring 13, one end of the spring 13 is installed on the inner wall of the masterbatch storage box 10, and a clamping ball 14 is installed at the other end of the spring 13, and the clamping ball 14 extends out of the inner cavity of the masterbatch storage box 10. The spring 13 is a spiral spring. When the clamping ball 14 is forced to move inward, the spring 13 will be compressed. After losing the external force, the self-elastic force of the spring 13 can drive the clamping ball 14 to reset. A plurality of card slots 15 are equidistantly opened along the circumferential direction on the inner wall of the top plate 8, and the number of the card slots 15 is twice that of the limiting parts. The outer wall of the clamping ball 14 is embedded in the inner cavity of the card slot 15. The clamping ball 14 and the card slot 15 cooperate with each other to position the masterbatch storage box 10. When the masterbatch storage box 10 rotates and the clamping ball 14 is stuck into the adjacent card slot 15, the outlet 11 and the blanking pipe 12 will be misaligned, and when the masterbatch storage box 10 is rotated again, the outlet 11 and the blanking pipe 12 will be connected again.

[0021] In addition, the length of the end of the clamping ball 14 extending out of the inner cavity of the masterbatch storage box 10 is less than its own radius to prevent the clamping ball 14 from coming out.

[0022] The detailed connection means are well-known techniques in the art. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be made.

[0023] During use, connect the discharge port of the external elevator to the communication port 4 through a pipeline, and make the bottom end of the outer cylinder 1 correspond to the equipment for receiving materials. Then rotate the screw cylinder 7 to move the top plate 8 up and down until the position of the flow-limiting cylinder 2 is appropriate. The material enters the inner cavity of the material channel 3 through the communication port 4, slides down and discharges through the inner cavity of the material channel 3, and enters the external equipment for receiving materials. The flow is limited through the material channel 3 to prevent the material from blocking the outlet of the outer cylinder 1. At the same time, the masterbatch in the masterbatch storage box 10 enters the inner cavity of the blanking pipe 12 through the inner cavity of the outlet 11 and is finally discharged together with the raw material, being preliminarily mixed with the material. When there is enough masterbatch, rotate the masterbatch storage box 10. Use the limit on the inner wall of the top plate 8 to make the clamping ball 14 retract and compress the spring 13. When the clamping ball 14 aligns with the adjacent card slot 15, use the elastic force of the spring 13 to make the clamping ball 14 snap into the card slot 15 for positioning. At this time, the outlet 11 and the blanking pipe 12 are misaligned, and the passage of the outlet 11 is blocked, and the masterbatch stops falling. Rotating again can continue to release the masterbatch. In actual use, it can not only limit the flow of the raw material, prevent too much material from being released at one time and causing blockage, but also the flow rate is adjustable, with high flexibility. It can also control the pre-mixing of the masterbatch and the raw material or stop the release of the masterbatch, and the operation is simple.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "central position", "the other end", "upper", "one side", "top end", "inner", "front part", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly specified and defined, terms such as "snap connection", "plug connection", "welding", "installation", "setting", "interference fit", "screw connection", "pin connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for an extrusion equipment for producing a cable insulation layer, characterized in that: include: An outer cylinder (1) and a flow-limiting cylinder (2), wherein the flow-limiting cylinder (2) is located in the inner cavity of the outer cylinder (1), and a material channel (3) is reserved between the outer cylinder (1) and the flow-limiting cylinder (2); a top cover (5) is mounted on the top end of the outer cylinder (1); a connecting port (4) is mounted on the outer wall of the outer cylinder (1); one end of the connecting port (4) extends into the inner cavity of the material channel (3), and the other end of the connecting port (4) penetrates through and extends out of the outer wall of the top cover (5); a lifting seat (6) is mounted on the top end of the top cover (5), and the lifting seat (6) penetrates through and extends out of the top end of the top cover (5); a screw barrel (7) is rotatably mounted on the top end of the top cover (5), and the screw barrel (7) is screwed to the outer wall of the lifting seat (6).

2. The extrusion equipment loading device for producing cable insulation layer according to claim 1, characterized in that: A top plate (8) is installed at the top of the lifting seat (6), two limit rods (9) are symmetrically installed at the top of the top cover (5), and the top plate (8) is slidably sleeved on the outer walls of the limit rods (9).

3. The extrusion equipment loading device for producing cable insulation layer according to claim 2, characterized in that: A masterbatch storage box (10) is rotatably mounted on the top of the top plate (8), and a plurality of outlets (11) are circumferentially provided at the bottom of the masterbatch storage box (10). A feed pipe (12) is provided through the inner cavity of the top plate (8), the lifting seat (6) and the flow limiting cylinder (2) from top to bottom. The number of the feed pipes (12) is several, and the several feed pipes (12) correspond to the several outlets (11) respectively.

4. The extrusion equipment loading device for producing cable insulation layer according to claim 3, characterized in that: The outer wall bottom end of the masterbatch storage box (10) is provided with several steel group positioning parts at equal intervals along the circumferential direction; The positioning portion comprises a spring (13), one end of the spring (13) being mounted on the inner wall of the masterbatch storage box (10), and the other end of the spring (13) being mounted with a locking ball (14), and the locking ball (14) extending out of the inner cavity of the masterbatch storage box (10).

5. The extrusion equipment loading device for producing cable insulation layer according to claim 4, characterized in that: The inner wall of the top plate (8) is provided with a plurality of slots (15) at equal intervals along the circumferential direction, and the number of the slots (15) is twice that of the limiting portion, and the outer wall of the locking ball (14) is embedded in the inner cavity of the slot (15).

6. The extrusion equipment loading device for producing cable insulation layer according to claim 5, characterized in that: The length of one end of the clamping ball (14) extending out of the inner cavity of the color matrix storage box (10) is less than the radius of the clamping ball (14).

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