Extrusion forming machine for halogen-free low-smoke low-toxicity electric wire

Abstract

The utility model relates to the technical field of extrusion forming machines, in particular to an extrusion forming machine for a halogen-free low-smoke low-toxicity electric wire. According to the technical scheme, the device comprises a material box, a hydraulic rod, a conveying pipe and a valve plate, a flow guide cover is arranged at one end of the conveying pipe, the material box is arranged at one end of the flow guide cover, a heating cylinder is arranged above the conveying pipe, a connecting pipe communicated with the conveying pipe is arranged at the lower end of the heating cylinder, and a motor is arranged at one end of the conveying pipe; the output end of the motor is provided with an auger rotationally installed in the conveying pipe, and a wire inlet and a wire outlet are formed in the material box. According to the utility model, the plurality of wiring channels which can be opened and closed independently are arranged in the material box, and the outer skin of one or more electric wires can be extruded and coated at the same time as required, so that the problems that when an extruder is used, the outer wall of one electric wire can only be extruded and coated at the same time, and the outer skin of a plurality of electric wires cannot be extruded and coated at the same time are solved. And the processing efficiency of extruding and coating the wire sheath is further influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion molding machines, in particular to an extrusion molding machine for halogen-free, low-smoke and low-toxic electric wires. Background Art

[0002] Halogen-free, low-smoke, and low-toxicity wires are wires that produce a small amount of smoke and low-toxic gas when a fire occurs. This type of wire usually does not contain halogen elements such as chlorine and bromine, so it produces less smoke under the action of flames, and the released gas is less toxic to the human body. Due to its low smoke and low toxicity characteristics, this type of wire reduces the damage caused to personnel and equipment by smoke and harmful gases when a fire occurs, and improves the efficiency of emergency response to fire accidents.

[0003] When processing halogen-free, low-smoke, and low-toxic wires, the halogen-free, low-smoke, and low-toxic material is the protective outer sheath of the wire, usually plastic or rubber, which is extruded by a pressurizing machine. When the extruder is in use, it can only extrude and coat one wire outer wall at a time, and cannot extrude and coat multiple wire outer sheaths at the same time, which affects the processing efficiency of the extrusion and coating of the wire outer sheath. For this reason, we propose an extrusion molding machine for halogen-free, low-smoke, and low-toxic wires to solve the existing problems. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes an extrusion molding machine for halogen-free, low-smoke and low-toxic electric wires.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wires, comprising a material box, a hydraulic rod, a delivery pipe, and a valve plate, a deflector is provided at one end of the delivery pipe, a material box is provided at one end of the deflector, a heating cylinder is provided above the delivery pipe, a connecting pipe which is installed through the delivery pipe is provided at the lower end of the heating cylinder, a motor is provided at one end of the delivery pipe, an auger which is rotatably installed inside the delivery pipe is provided at the output end of the motor, a wire inlet and a wire outlet are provided inside the material box, and heating plates are provided on the inner walls at both ends of the material box.

[0006] Preferably, a feed port is provided at the upper end of the heating cylinder, and a control valve is provided at the upper end of the feed port. The halogen-free, low-smoke, low-toxic wire sheath raw material is transported to the interior of the heating cylinder through the feed port, and the opening and closing of the feed port is controlled by the control valve.

[0007] Preferably, a base is provided at the lower end of the delivery pipe, and one side of the upper end of the base is located at the lower end of the air deflector. The base supports the lower ends of the delivery pipe and the air deflector at the same time.

[0008] Preferably, three sets of symmetrically distributed guide wheels are provided at both ends of the material box, and the guide wheels are located at the wire inlet and the wire outlet. The guide wheels provide guiding support for the guide inside the input and output material boxes.

[0009] Preferably, the openings of the inlet and outlet are both provided with sealing plugs, which are conical in shape. The sealing plugs seal the unused inlet and outlet to prevent dust and foreign objects from entering.

[0010] Preferably, three sets of symmetrically distributed sealing sleeves are embedded and installed inside the material box, and a valve plate is slidably inserted inside the sealing sleeve. The valve plate is slidably supported inside the material box by the sealing sleeve to close the unused inlet and outlet.

[0011] Preferably, the valve plate is fitted with the inner wall of the material box where the outlet and inlet pass through, and a stroke plate is arranged at one end of the valve plate located outside the material box, and three groups of symmetrically distributed hydraulic rods are arranged at one end of the material box, and the telescopic ends are connected to the two ends of the stroke plate. The valve plate closes the outlet and inlet from the inside of the material box, and when the hydraulic rod drives the stroke plate, it drives the valve plate to control the opening and closing of the inlet and outlet located inside the material box.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model heats the halogen-free, low-smoke, and low-toxic raw materials through a heating cylinder, and the hot-melted liquid material is squeezed into the inside of the material box through a spiral extrusion structure. When the conductor inside the wire passes through the material box, the outer wall is covered with a layer of coating skin, thereby realizing the extrusion processing of the halogen-free, low-smoke, and low-toxic wires, and multiple wire channels are arranged inside the material box to realize the simultaneous extrusion processing of multiple halogen-free, low-smoke, and low-toxic wires, thereby improving the efficiency of the halogen-free, low-smoke, and low-toxic extrusion processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main three-dimensional structure of the auger of the utility model;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the material box of the utility model in side section;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the material box of the utility model from a side view.

[0018] Figure numerals: 1. material box; 2. guide wheel; 3. hydraulic rod; 4. stroke plate; 5. sealing plug; 6. deflector; 7. base; 8. conveying pipe; 9. heating cylinder; 10. connecting pipe; 11. motor; 12. sealing sleeve; 13. valve plate; 14. auger; 15. wire inlet; 16. wire outlet; 17. heating plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-Figure 4 As shown, the utility model proposes an extrusion molding machine for halogen-free, low-smoke and low-toxic electric wires, comprising a material box 1, a hydraulic rod 3, a conveying pipe 8 and a valve plate 13, a deflector 6 is arranged at one end of the conveying pipe 8, a material box 1 is arranged at one end of the deflector 6, a heating cylinder 9 is arranged above the conveying pipe 8, a connecting pipe 10 installed through the conveying pipe 8 is arranged at the lower end of the heating cylinder 9, a motor 11 is arranged at one end of the conveying pipe 8, an auger 14 rotatably installed inside the conveying pipe 8 is arranged at the output end of the motor 11, an inlet 15 and an outlet 16 are opened inside the material box 1, a feed port is arranged at the upper end of the heating cylinder 9, a control valve is arranged at the upper end of the feed port, a base 7 is arranged at the lower end of the conveying pipe 8, one side of the upper end of the base 7 is located at the lower end of the deflector 6, three groups of symmetrically distributed guide wheels 2 are arranged at both ends of the material box 1, the guide wheels 2 are located at the inlet 15 and the outlet 16, and heating plates 17 are arranged on the inner walls of the upper and lower ends of the material box 1.

[0021] The implementation steps based on Example 1 are as follows: the halogen-free, low-smoke, and low-toxic materials are transported to the interior of the heating cylinder 9 in granular form through the feed port; the raw materials inside the heating cylinder 9 are hot-melted and flow downward through the connecting tube 10 into the conveying tube 8; the motor 11 drives the auger 14 to rotate, and the liquid material is spirally pushed and enters the interior of the material box 1 through the guide cover 6; the heating plate 17 performs secondary heating on the liquid material to prevent it from solidifying; the conductor part of the wire is transported through the wire inlet 15 and output from the wire outlet 16; during this process, the outer wall of the conductor located inside the material box 1 adheres to the liquid material, the outer wall is coated, and is extruded through the caliber restriction of the wire outlet 16.

[0022] like Figure 1-Figure 4 As shown, compared with the first embodiment, the extrusion molding machine of halogen-free, low-smoke and low-toxic electric wire proposed by the utility model further includes: sealing plugs 5 are provided at the openings of the wire inlet 15 and the wire outlet 16, the sealing plugs 5 are conical, three groups of symmetrically distributed sealing sleeves 12 are embedded and installed inside the material box 1, a valve plate 13 is slidably inserted inside the sealing sleeve 12, the valve plate 13 is fitted with the inner wall of the material box 1 where the wire outlet 16 and the wire inlet 15 pass through, a stroke plate 4 is provided at one end of the valve plate 13 on the outside of the material box 1, and three groups of symmetrically distributed hydraulic rods 3 are provided at one end of the material box 1, and the telescopic ends are connected to the two ends of the stroke plate 4.

[0023] In the present embodiment, during the wire extrusion processing, there are multiple wire inlets 15 and wire outlets 16. When the hydraulic rod 3 drives the stroke plate 4 to move, it drives the valve plate 13 to control the opening and closing of the corresponding wire inlets 15 and wire outlets 16. Multiple conductors pass through the corresponding wire inlets 15 and wire outlets 16 at the same time, and the calibers of the wire inlets 15 and wire outlets 16 at the same horizontal height can be set to different specifications as needed, which is convenient for the extrusion coating processing of wire conductors of different specifications, and multiple wires are processed at the same time, avoiding the extrusion equipment can only perform the extrusion processing of a single wire, low processing efficiency, wire specifications can not be effectively adapted, the use is not flexible enough, and multiple wires are processed at the same time, which greatly improves the production efficiency, completes the extrusion processing of multiple wires in the same operation, reduces the processing time, and different specifications and calibers can be set as needed, which is convenient for the extrusion coating processing of wire conductors of different specifications, making the equipment more adaptable and able to meet the processing needs of different wires.

[0024] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wires, comprising a material box (1), a hydraulic rod (3), a delivery pipe (8), and a valve plate (13), characterized in that: A flow guide cover (6) is provided at one end of the conveying pipe (8), a material box (1) is provided at one end of the flow guide cover (6), a heating tube (9) is provided above the conveying pipe (8), a connecting tube (10) is provided at the lower end of the heating tube (9) and is installed through the conveying pipe (8), a motor (11) is provided at one end of the conveying pipe (8), an auger (14) rotatably installed inside the conveying pipe (8) is provided at the output end of the motor (11), a wire inlet (15) and a wire outlet (16) are provided inside the material box (1), and heating plates (17) are provided on the inner walls of the upper and lower ends of the material box (1).

2. The extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wire according to claim 1, characterized in that: The upper end of the heating cylinder (9) is provided with a feed port, and the upper end of the feed port is provided with a control valve.

3. The extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wire according to claim 1, characterized in that: A base (7) is provided at the lower end of the delivery pipe (8), and one side of the upper end of the base (7) is located at the lower end of the deflector (6).

4. The extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wire according to claim 1, characterized in that: Three sets of symmetrically distributed guide wheels (2) are provided at both ends of the material box (1), and the guide wheels (2) are located at the line inlet (15) and the line outlet (16).

5. The extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wire according to claim 1, characterized in that: The openings of the line inlet (15) and the line outlet (16) are both provided with sealing plugs (5), and the sealing plugs (5) are conical.

6. The extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wire according to claim 1, characterized in that: Three groups of symmetrically distributed sealing sleeves (12) are embedded and installed inside the material box (1), and a valve plate (13) is slidably inserted inside the sealing sleeve (12).

7. The extrusion molding machine for halogen-free, low-smoke, and low-toxic electric wire according to claim 6, characterized in that: The valve plate (13) is fitted with the inner wall of the material box (1) where the line outlet (16) and the line inlet (15) pass through. A stroke plate (4) is arranged at one end of the valve plate (13) located outside the material box (1). One end of the material box (1) is provided with three groups of symmetrically distributed hydraulic rods (3) whose telescopic ends are connected to both ends of the stroke plate (4).

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