Low-voltage rubber sleeve cable extruder

Abstract

The utility model discloses a low pressure rubber sleeve cable extruder which comprises a bracket, a material storage tank, an injection molding head and a mould base, a pressure pump is erected on one side of the upper end of the bracket, the material storage tank for storing injection materials is erected at the upper end of one side, far away from the pressure pump, of the bracket, one side of the material storage tank is communicated with a pressurizing pipeline for pressurizing and conveying, and the other side of the material storage tank is communicated with the mould base. An injection molding head for injection processing is erected at the lower end of the storage tank, the outer wall of the output end of the injection molding head is sleeved with a heating pipeline for heating and heat preservation, a mold frame is erected on the outer wall of the end, away from the pressure pump, of the injection molding head, and the injection molding head communicates with the pressure pump. When the low-voltage rubber sleeve cable plastic extruding machine is used, the mold frame serves as a fixing support of a cooling system and is connected with a butt joint frame in a fixing pin connection mode, the mold frame and the butt joint frame are matched with each other, a user can conveniently and regularly overhaul and check the interior of the mold frame, it is ensured that the cooling system cools a discharging head, and it is ensured that hot melting plastic is solidified and formed; and the subsequent hot-melt plastic can be conveniently removed and formed.

Description

Technical Field

[0001] The utility model relates to the technical field of cable extruders, in particular to a low-voltage rubber-sheathed cable extruder. Background Art

[0002] Low-voltage rubber-sheathed cable is a flexible, portable cable consisting of multiple strands of fine copper wire as the conductor, covered with rubber insulation and a rubber sheath. Rubber-sheathed cables are widely used in various electrical devices, such as portable power cords for household appliances, electric machinery, and electrical devices and appliances. During the production process, the rubber insulation and sheath are extruded and molded using an extruder. The conductor, insulation, and sheath are then heat-treated to meet the production requirements.

[0003] The utility model discloses a cable extruder (CN219988391U), comprising an extrusion tube, a feed tube, and a breakup bin. A first motor is mounted on one end of the extrusion tube, and a first rotating shaft extending into the interior of the extrusion tube is mounted on the output end of the first motor. An extrusion rod is mounted on the end of the first rotating shaft remote from the first motor. A feed tube is mounted on the top end of the extrusion tube, near the first motor, and an electric heating wire is wound around the outside of the feed tube. A second motor is mounted on the bottom of the feed tube, and a breakup bin is mounted on the top of the second motor. The utility model is equipped with a second motor, a guide tube, a feed tube, and a spiral feed shaft. During material discharge, the second motor drives the spiral feed shaft to rotate at a constant speed, allowing the raw materials to be discharged into the extrusion tube at a constant speed. This not only prevents the accumulation of raw materials and blockage within the extrusion tube, but also ensures uniform material discharge, maintains uniform cable composition, and ensures cable production quality. However, during use, since the hot-melt plastic of the rubber sheath has a certain viscosity after hot extrusion, the hot-melt plastic often polymerizes when it is removed from the extrusion head, making the hot-melt plastic molding difficult, reducing the product yield, and causing trouble to users.

[0004] To this end, we propose a low-voltage rubber-sheathed cable extruder. Utility Model Content

[0005] The purpose of the utility model is to provide a low-voltage rubber-sheathed cable extruder to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-voltage rubber-sheathed cable extruder, comprising a bracket, a storage tank, an injection molding head and a mold frame, a pressure pump being mounted on one side of the upper end of the bracket, and a storage tank for storing injection materials being mounted on the upper end of the bracket away from the pressure pump, one side of the storage tank being connected to a pressure pipe for pressurized transportation, and an injection molding head for injection processing being mounted on the lower end of the storage tank, a heating pipe for heating and heat preservation being sleeved on the outer wall of the output end of the injection molding head, and a mold frame being mounted on the outer wall of the end of the injection molding head away from the pressure pump, the injection molding head and the pressure pump being connected to each other, and a docking frame being fixed to one end of the mold frame.

[0007] Preferably, the docking frame and the mold frame are provided with docking holes around them, and the docking holes are used for inserting positioning pins.

[0008] Preferably, a sealing ring is connected to the connection between the mold frame and the docking frame, and the sealing ring is respectively in interference connection with the mold frame and the docking frame.

[0009] Preferably, a discharge head is fixedly sleeved on the output end of the injection head, and the discharge head is distributed along the middle of the mold frame and the docking frame.

[0010] Preferably, a fixing frame is fastened with bolts on one side of the upper end of the mold frame, and a water-cooling inlet pipe is inserted into the middle of the inner wall of the fixing frame.

[0011] Preferably, the output end of the water-cooling inlet pipe is connected to a liquid separation pipe, and one end of the liquid separation pipe away from the water-cooling inlet pipe is connected to a plurality of heat exchange pipes.

[0012] Preferably, the heat exchange pipes are distributed around the discharge head, and the other end of the heat exchange pipes is connected to the liquid outlet pipe, and the heat exchange pipes are distributed in groups of two.

[0013] Compared with the prior art, the beneficial effect of the present invention is that when the low-voltage rubber-sheathed cable extruder is in use, the mold frame serves as a fixed bracket of the cooling system, and is connected to the docking frame by a fixed pin connection. The two match each other, making it convenient for users to regularly inspect and check the inside of the mold frame, ensuring that the cooling system cools the discharge head, ensuring that the hot-melt plastic is solidified and formed, and facilitating the subsequent hot-melt plastic molding.

[0014] The interference fit between the mold base and the docking frame is connected with a sealing ring to reduce leakage and seepage in the cooling system and ensure the rationality and feasibility of the overall structure.

[0015] The water-cooling inlet pipe, liquid separation pipe, heat exchange pipe and liquid outlet pipe form a water-cooling cooling system. Through the excellent thermal conductivity of the coolant and heat exchange pipe, the hot-melt plastic of the discharge head can be fully cooled to meet the requirements of the hot-melt plastic solidification and the cool removal, and the hot-melt plastic melting and merging, which leads to the occurrence of different molding sizes of the rubber sheath, thereby improving the yield of the rubber sheath, bringing good economic benefits to the enterprise, and facilitating use by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the mold frame and the docking frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the expanded structure of the mold frame of the utility model.

[0019] In the figure: 1. Bracket; 2. Pressure pump; 3. Storage tank; 31. Pressurized pipe; 4. Injection head; 41. Heating pipe; 5. Mold frame; 51. Docking frame; 52. Sealing ring; 53. Docking hole; 6. Fixed frame; 61. Water-cooling inlet pipe; 62. Liquid separation pipe; 63. Heat exchange pipe; 64. Liquid outlet pipe; 7. Discharge head. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0021] See also Figure 1-3The utility model provides a technical solution: a low-voltage rubber sheathed cable extruder, comprising a bracket 1, a storage tank 3, an injection head 4 and a mold frame 5. A pressure pump 2 is mounted on one side of the upper end of the bracket 1, and a storage tank 3 for storing injection materials is mounted on the upper end of the bracket 1 away from the pressure pump 2. One side of the storage tank 3 is connected to a pressure pipe 31 for pressurized delivery, and an injection head 4 for injection processing is mounted on the lower end of the storage tank 3. The outer wall of the output end of the injection head 4 is sleeved with a heating pipe 41 for heating and heat preservation, and the injection head 4 A mold frame 5 is provided on the outer wall of one end away from the pressure pump 2. The injection head 4 and the pressure pump 2 are connected to each other. A docking frame 51 is fixed to one end of the mold frame 5. Docking holes 53 are provided around the docking frame 51 and the mold frame 5. The docking holes 53 are for inserting positioning pins. A sealing ring 52 is connected to the connection between the mold frame 5 and the docking frame 51, and the sealing ring 52 is respectively connected to the mold frame 5 and the docking frame 51 for interference fit. A discharge head 7 is fixed to the output end of the injection head 4, and the discharge head 7 is connected along the mold frame 5 and the docking frame 51. The middle distribution, the discharge head 7 serves as the molding discharge end of the rubber sheath of the extruder, and the discharge head 7 is connected with the material storage tank 3 through the injection head 4. The injection molding raw material is transported to the injection head 4 by pump pressure. The heating wire in the injection head 4 melts the material. After tightening the pressure pump 2, the hot-melt plastic is transported to the discharge head 7 by extrusion molding. At the same time, in order to ensure that the plastic is completely melted, a heating pipe 41 with an electromagnetic heating function is sleeved on the outer wall of the injection head 4 to ensure that the rubber sheath has a high hot-melt molding degree. At the same time, the mold frame 5 serves as a fixed bracket of the cooling system and is connected to the docking frame 51 by a fixed pin connection. The two match each other, which is convenient for users to regularly inspect and check the inside of the mold frame 5 to ensure that the cooling system cools the discharge head 7 and ensures that the hot-melt plastic is solidified and molded, which facilitates the subsequent hot-melt plastic to be easily removed and molded. In addition, a sealing ring 52 is interference-connected between the mold frame 5 and the docking frame 51 to reduce leakage and seepage in the cooling system and ensure the rationality and feasibility of the overall structure. Example 2

[0022] See also Figure 1-3The utility model provides a technical solution: a low-voltage rubber-sheathed cable extruder, a fixing frame 6 is fastened with bolts on one side of the upper end of the mold frame 5, and a water-cooling water inlet pipe 61 is penetrated into the middle of the inner wall of the fixing frame 6, the output end of the water-cooling water inlet pipe 61 is connected with a liquid separation pipe 62, and the end of the liquid separation pipe 62 away from the water-cooling water inlet pipe 61 is connected with a plurality of heat exchange pipes 63, the heat exchange pipes 63 are distributed around the discharge head 7, and the other end of the heat exchange pipe 63 is connected with a liquid outlet pipe 64, the heat exchange pipes 63 are distributed in groups of two, the water-cooling water inlet pipe 61, the liquid separation pipe 62, the heat exchange pipe 63. The liquid outlet pipe 64 constitutes a water cooling system. The cooling water flows into the water cooling inlet pipe 61 through pump pressure, and is transported to each heat exchange pipe 63 through the liquid distribution pipe 62. The heat exchange pipe 63 is distributed around the discharge head 7. Through the excellent thermal conductivity of the cooling liquid and the heat exchange pipe 63, the hot melt plastic of the discharge head 7 can be fully cooled to meet the requirements of the hot melt plastic solidification and the reduction of the hot melt plastic melting and merging, which leads to the occurrence of different molding sizes of the rubber sheath, thereby improving the yield rate of the rubber sheath, bringing good economic benefits to the enterprise, and convenient for users to use.

[0023] Working principle: For this type of low-voltage rubber sheathed cable extruder, the injection molding raw materials are first transported to the injection head 4 by pump pressure. The heating wire in the injection head 4 melts the material and then tightens the pressure pump 2. At this time, the hot-melt plastic is transported to the discharge head 7 by extrusion molding. At the same time, in order to ensure that the plastic is completely melted, a heating pipe 41 with electromagnetic heating function is sleeved on the outer wall of the injection head 4 to ensure that the rubber sheath has a high degree of hot-melt molding. Then the mold frame 5 is used as a fixed bracket of the cooling system and is connected to the docking frame 51 by a fixed pin connection. The cooling water flows into the water-cooled water inlet pipe 61 by pump pressure and is transported to each heat exchange pipe 63 through the liquid separation pipe 62. The heat exchange pipe 63 is distributed around the discharge head 7. The excellent thermal conductivity of the coolant and the heat exchange pipe 63 can fully cool the hot-melt plastic of the discharge head 7. Finally, after the rubber sheath is formed, the rubber sheath is transported to the storage tank through the conveying system and waits for further processing.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage rubber-sheathed cable extruder, comprising a bracket (1), a storage tank (3), an injection head (4) and a mold frame (5), characterized in that: A pressure pump (2) is mounted on one side of the upper end of the bracket (1), and a storage tank (3) for storing injection materials is mounted on the upper end of the bracket (1) away from the pressure pump (2), one side of the storage tank (3) is connected to a pressure pipe (31) for pressurized delivery, and an injection head (4) for injection processing is mounted on the lower end of the storage tank (3), the outer wall of the output end of the injection head (4) is sleeved with a heating pipe (41) for heating and heat preservation, and a mold frame (5) is mounted on the outer wall of the end of the injection head (4) away from the pressure pump (2), the injection head (4) and the pressure pump (2) are connected to each other, and one end of the mold frame (5) is fixed with a docking frame (51).

2. A low-voltage rubber-sheathed cable extruder according to claim 1, characterized in that: The docking frame (51) and the mold frame (5) are provided with docking holes (53) around their peripheries, and the docking holes (53) are used for inserting positioning pins.

3. A low-voltage rubber-sheathed cable extruder according to claim 2, characterized in that: A sealing ring (52) is connected to the connection between the mold frame (5) and the docking frame (51), and the sealing ring (52) is respectively connected to the mold frame (5) and the docking frame (51) in an interference fit.

4. A low-voltage rubber-sheathed cable extruder according to claim 2, characterized in that: A discharge head (7) is sleeved and fixed to the output end of the injection head (4), and the discharge head (7) is distributed along the middle of the mold frame (5) and the docking frame (51).

5. The low-voltage rubber-sheathed cable extruder according to claim 1, characterized in that: A fixing frame (6) is fastened with bolts on one side of the upper end of the mold frame (5), and a water-cooling water inlet pipe (61) is inserted into the middle of the inner wall of the fixing frame (6).

6. A low-voltage rubber-sheathed cable extruder according to claim 5, characterized in that: The output end of the water-cooling inlet pipe (61) is connected to a liquid separation pipe (62), and one end of the liquid separation pipe (62) away from the water-cooling inlet pipe (61) is connected to a plurality of heat exchange pipes (63).

7. A low-voltage rubber-sheathed cable extruder according to claim 6, characterized in that: The heat exchange pipes (63) are distributed around the discharge head (7), and the other end of the heat exchange pipes (63) is connected to the liquid outlet pipe (64). The heat exchange pipes (63) are distributed in groups of two.

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