Preheater for cable production

Abstract

The utility model relates to the technical field of cable production, in particular to a preheating machine for cable production. The device comprises a workbench and an extrusion pipe, the workbench is provided with a preheating assembly, the preheating assembly comprises a shell fixedly connected with a support on the upper side of the workbench, the top of the shell is provided with a sealing cover, the outer side wall of the shell is fixedly connected with a heater, an electric heating wire is embedded in the shell, a fixing plate is embedded in the shell, and a rotating motor is welded to the upper side of the fixing plate; an output shaft of the rotating motor is connected with the rotating shaft. Raw materials are preheated through the arranged preheating assembly, after the raw materials are preheated, the electric valve close to the extrusion pipe is opened, so that the raw materials enter the extrusion pipe, and then the decomposition assembly is started to clean residues on the inner side wall of the shell and the supporting plate; and an electric valve on one side of the impurity box is opened to collect residues after decomposition, and a scraping plate is used for cleaning the bottom of the electric valve, so that an extrusion pipe can obtain uniformly preheated raw materials, and qualified cables are produced.

Description

Technical Field

[0001] This utility model relates to the field of cable production technology, and more specifically, to a cable production preheating machine. Background Technology

[0002] With the development of science and technology, industries and other fields are making rapid progress, which leads to an increase in the use of wires and cables. In the cable processing process, preheating devices are often required. Preheating is essential in the cable production process, as it can remove moisture and prevent the formation of air bubbles in the insulation.

[0003] Chinese Patent Publication No. CN219338521U discloses a preheating device for a plastic extruder used in cable production. The preheating device includes a frame and an extrusion cylinder, with the extrusion cylinder fixedly connected to the frame. It also includes: an extrusion mechanism disposed inside the extrusion cylinder for extruding cable raw materials; a cleaning mechanism for cleaning the inner wall of the extrusion cylinder; and a feeding preheating mechanism disposed on the extrusion cylinder for preheating the cable raw materials during extrusion.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: Although the extrusion mechanism can clean the inner wall of the extrusion cylinder, it cannot perform effective preheating. After preheating, residual raw materials will adhere to the inner wall of the preheating mechanism. The residual raw materials will be mixed with the raw materials again for preheating, resulting in uneven preheating, which will affect the quality of the cable. When the opening and closing plate is in operation, preheated raw materials will also adhere to the bottom of the opening and closing plate, which will also cause the opening and closing plate to malfunction. Utility Model Content

[0005] The purpose of this invention is to provide a cable production preheating machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a cable production preheating machine, including a workbench and an extrusion tube. A bracket is fixedly connected to the upper side of the workbench, and a preheating component for stirring and preheating is provided on the workbench. A decomposition component for cleaning residues is provided on one side of the preheating component, and a diversion component for diverting flow is provided at the bottom of the preheating component. The preheating component includes a housing fixedly connected to the bracket on the upper side of the workbench. A sealing cover is hinged to the top of the housing. A heater is fixedly connected to the outer wall of the housing, and several heating wires are embedded inside the housing. A fixing plate is embedded in the inner cavity of the housing. A rotary motor is welded to the upper side of the fixing plate, and the output shaft of the rotary motor passes through the fixing plate. One end of the output shaft of the rotary motor is fixedly connected to a rotating shaft.

[0007] As a further improvement to this technical solution, the decomposition component includes a water tank set on the workbench. An inlet for adding decomposition agent is fixedly installed on the upper side of the water tank. A water supply pipe is fixedly connected to the side of the water tank near the outer shell. The water supply pipe passes through the outer shell. An annular water pipe is fixedly connected to the end of the water supply pipe away from the water tank. The annular water pipe is fixedly installed on the lower side of the fixed plate. Several sets of spray pipes are evenly arranged on the outer wall of the annular water pipe.

[0008] As a further improvement to this technical solution, the drainage component includes electric valves symmetrically embedded in the bottom of the housing, a cylindrical tube welded to the bottom of the housing, a scraper fixedly installed at the bottom of the housing and on the inner wall of the cylindrical tube, and a baffle plate welded in the inner cavity of the cylindrical tube, the baffle plate symmetrically separating the cylindrical water pipe.

[0009] As a further improvement to this technical solution, an impurity box is installed on the side of the workbench away from the extrusion tube, and both the impurity box and the extrusion tube are connected to the cylindrical tube through a water pipe.

[0010] As a further improvement to this technical solution, the outer casing base is equipped with a controller for controlling two electric valves. After preheating, the controller opens the electric valve near the extrusion tube side, and after decomposing the residue, the controller opens the electric valve near the impurity box side.

[0011] As a further improvement to this technical solution, the outer wall of the rotating shaft is evenly distributed with several sets of support plates for stirring raw materials, and the support plates are arc-shaped.

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

[0013] In this cable production preheating machine, the raw materials are fully preheated by a preheating component. After the raw materials are preheated, the electric valve near the extrusion tube is opened to allow the raw materials to enter the extrusion tube. Then, the decomposition component is opened to clean the residue on the inner wall of the outer shell and the support plate. The electric valve on one side of the impurity box is opened to start collecting the residue after decomposition. The scraper can also clean the bottom of the electric valve, so that the extrusion tube can be uniformly preheated with raw materials, thereby producing qualified cables. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the preheating decomposition component of the utility model.

[0017] Figure 4 This is a schematic diagram of the disassembled component structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the shunt component structure of the utility model.

[0019] The meanings of the labels in the diagram are as follows:

[0020] 1. Workbench; 2. Extrusion tube;

[0021] 3. Preheating assembly; 31. Housing; 32. Sealing cover; 33. Heater; 34. Fixing plate; 35. Rotary motor;

[0022] 36. Shaft;

[0023] 4. Disassembly components; 41. Water tank; 42. Feed inlet; 43. Water delivery pipe; 44. Spray pipe;

[0024] 5. Drainage assembly; 51. Electric valve; 52. Scraper; 53. Barrier plate;

[0025] 6. Impurity box. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Example 1

[0029] Please see Figures 1-5As shown, this embodiment provides a cable production preheating machine, including a workbench 1 and an extrusion tube 2. A bracket is fixedly connected to the upper side of the workbench 1. A preheating component 3 for stirring and preheating is provided on the workbench 1. A decomposition component 4 for cleaning residues is provided on one side of the preheating component 3. A diversion component 5 for diverting flow is provided at the bottom of the preheating component 3. The preheating component 3 includes a housing 31 fixedly connected to the bracket on the upper side of the workbench 1. A sealing cover 32 is hinged to the top of the housing 31. A rubber ring is wrapped around the contact point between the top of the housing 31 and the sealing cover 32. The rubber ring increases the sealing performance, so that the heat energy of the raw material can be fully utilized during the preheating process, thereby improving the preheating rate. A handle is installed on the sealing cover 32 for easy opening and closing. A heater 33 is fixedly connected to the outer wall of the housing 31, and several heating wires are embedded in the housing 31. The heater 33 heats the heating wires to generate heat energy, which heats the raw material.

[0030] A fixing plate 34 is embedded in the inner cavity of the outer shell 31. A rotary motor 35 is welded to the upper side of the fixing plate 34. The output shaft of the rotary motor 35 passes through the fixing plate 34 and is fixedly connected to one end of the rotating shaft 36, so that the rotating shaft 36 can rotate. The outer shell 31 is shaped like a frustum, which facilitates uniform stirring of the raw materials in the preheating component 3. Several sets of support plates for stirring the raw materials are evenly distributed on the outer side wall of the rotating shaft 36. The support plates are arc-shaped. The frustum-shaped outer shell 31 and the arc-shaped support plates can stir the raw materials in the inner cavity of the outer shell 31 without dead angles. The size of the several sets of arc-shaped support plates increases sequentially according to the height of the frustum, so that the raw materials are fully preheated and uneven preheating is prevented, which would affect the quality of the cable.

[0031] The decomposition component 4 includes a water tank 41 mounted on the workbench 1. A feed inlet 42 for adding a decomposition agent is fixedly installed on the upper side of the water tank 41. A hinged plate is installed at the connection between the feed inlet 42 and the water tank 41. This allows for the addition of water and decomposition agent after the preheating component 3 has preheated the raw materials. It also prevents dust and impurities from entering and mixing with the raw materials, thus affecting the cable quality. A water supply pipe 43 is fixedly connected to the side of the water tank 41 closest to the outer casing 31, penetrating the outer casing 31. A ring is fixedly connected to the end of the water supply pipe 43 furthest from the water tank 41. The annular water pipe is fixedly installed on the lower side of the fixed plate 34. Several sets of spray pipes 44 are evenly arranged on the outer wall of the annular water pipe. The water supply pipe 43, which is fixedly installed on the lower side of the fixed plate 34 and connected to the water tank 41, plays a guiding role. After preheating, there will be residues stuck inside the outer shell 31. The mixture of water and decomposing agent in the water tank 41 is transported to the spray pipes 44 through the drainage of the annular water pipe and the water supply pipe 43. The spray pipes 44 spray the residues stuck on the inner wall of the outer shell 31 and the support plate through the nozzles set on the lower side, thereby decomposing the residues.

[0032] The drainage component 5 includes electric valves 51 symmetrically embedded at the bottom of the outer shell 31. An impurity box 6 is installed on the side of the worktable 1 away from the extrusion tube 2. Both the impurity box 6 and the extrusion tube 2 are connected to a cylindrical tube through a water pipe. A controller for controlling the two electric valves 51 is installed on the base of the outer shell 31. After preheating, the controller opens the electric valve 51 close to the side of the extrusion tube 2. After decomposing the residue, the controller opens the electric valve 51 close to the side of the impurity box 6. A cylindrical tube is welded to the bottom of the outer shell 31. After preheating, the electric valve 51 close to the side of the extrusion tube 2 is opened. After the decomposition component 4 decomposes the residue adhering to the inner wall of the outer shell 31, the electric valve 51 close to the side of the impurity box 6 is opened.

[0033] A scraper 52 is fixedly installed at the bottom of the outer shell 31 and on the inner wall of the cylindrical tube. The scraper 52 cleans the raw material adhering to the bottom of the electric valve 51. When the electric valve 51 is running, it moves towards the outer wall of the outer shell 31. The scraper 52 blocks and scrapes off the raw material adhering to the electric valve 51, thereby achieving a cleaning effect. A baffle plate 53 is welded in the inner cavity of the cylindrical tube. The baffle plate 53 symmetrically divides the cylindrical tube into different pipes. When the electric valve 51 on the side closer to the impurity box 6 is opened, the residue flows into the impurity box 6 along the cylindrical tube. When the electric valve 51 on the side closer to the extrusion pipe 2 is opened, the preheated raw material enters the extrusion pipe 2 and is then extruded.

[0034] In this embodiment, a cable production preheating machine is used to fully preheat the raw materials through the preheating component 3. After the raw materials are preheated, the electric valve 51 near the extrusion tube 2 is opened to allow the raw materials to enter the extrusion tube 2. Then, the decomposition component 4 is opened to clean the residue on the inner wall of the outer shell 31 and the support plate. The electric valve 51 on one side of the impurity box 6 is opened to start collecting the decomposed residue. The scraper 52 can also clean the bottom of the electric valve 51, so that the extrusion tube 2 can obtain uniformly preheated raw materials, thereby producing qualified cables.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cable production preheating machine, comprising a workbench (1) and an extrusion tube (2), characterized in that: A bracket is fixedly connected to the upper side of the workbench (1). A preheating component (3) for stirring and preheating is provided on the workbench (1). A decomposition component (4) for cleaning residues is provided on one side of the preheating component (3). The decomposition component (4) is used to decompose the residues after the preheating of the raw materials is completed. A drainage component (5) for diversion is provided at the bottom of the preheating component (3). The preheating component (3) comprises a shell (31) fixedly connected to the bracket on the upper side of the workbench (1). A sealing cover (32) is hinged on the top of the shell (31). A heater (33) is fixedly connected to the outer wall of the shell (31). A plurality of electric heating wires are embedded in the shell of the shell (31). A fixing plate (34) is embedded in the inner cavity of the shell (31). A rotating motor (35) is welded on the upper side of the fixing plate (34). The output shaft of the rotating motor (35) passes through the fixing plate (34). The output shaft of the rotating motor (35) is fixedly connected to one end of the rotating shaft (36).

2. A cable production preheating machine according to claim 1, characterized in that: The decomposition assembly (4) comprises a water tank (41) arranged on the workbench (1); a feed port (42) for adding a decomposition agent is fixedly mounted on the upper side of the water tank (41); a water pipe (43) is fixedly connected to the side of the water tank (41) close to the outer shell (31); the water pipe (43) passes through the outer shell (31); an end of the water pipe (43) away from the water tank (41) is fixedly connected to an annular water pipe, and the annular water pipe is fixedly mounted on the lower side of the fixed plate (34); and a plurality of groups of nozzles (44) are evenly arranged on the outer side wall of the annular water pipe.

3. A cable production preheating machine according to claim 1, characterized in that: The drainage component (5) comprises an electric valve (51) symmetrically embedded in the bottom of the outer shell (31); a cylindrical tube is welded to the bottom of the outer shell (31); a scraper (52) is fixedly installed at the bottom of the outer shell (31) and on the inner side wall of the cylindrical tube; a baffle (53) is welded in the inner cavity of the cylindrical tube; and the baffle (53) symmetrically separates the cylindrical water pipes.

4. A cable production preheating machine according to claim 1, characterized in that: A dirt box (6) is installed on the side of the workbench (1) away from the extrusion tube (2), and the dirt box (6) and the extrusion tube (2) are both connected to the cylindrical tube via a water pipe.

5. A cable production preheating machine according to claim 1, characterized in that: A controller for controlling two electric valves (51) is installed at the base of the housing (31). The controller opens the electric valve (51) close to one side of the extrusion tube (2) after preheating is completed, and opens the electric valve (51) close to one side of the impurity box (6) after decomposing the residue.

6. A cable production preheating machine according to claim 1, characterized in that: A plurality of support plates for stirring raw materials are evenly distributed on the outer side wall of the rotating shaft (36), and the support plates are in an arc shape.

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