Raw material preheating device for cable production

Abstract

The utility model provides a raw material preheating device for cable production, which relates to the technical field of raw material preheating and comprises a preheating tank, a feeding hopper mounted at the top of the preheating tank, blanking cavities arranged on two sides in the feeding hopper, a sealing cover arranged at the top of the feeding hopper and rotationally connected with the feeding hopper through a hinge, and a preheating assembly arranged in the preheating tank, the preheating assembly comprises an outer heating tank, a heating coil, an inner heating tank, a heating block, a power distribution cabinet and a control panel. According to the raw material preheating device for cable production, raw materials can be heated through conduction from the outside of the outer heating tank to the inside and can be heated from the inside of the inner heating tank to the outside through the preheating assembly, the heat transfer speed is increased, the raw material preheating speed is high, and the problem that the raw materials are accumulated in the heating tanks and located in a closed space is solved. Therefore, the production efficiency of the cable insulation layer is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to raw material preheating technical field, specifically a raw material preheating device for cable production. BACKGROUND

[0002] Fluoroplastic particles are a kind of granular plastics with fluoropolymer as material, and such material has very excellent chemical stability, heat resistance, low friction coefficient and electrical insulation performance, so it is widely used in various high-demand environments, fluoroplastic particles have good mechanical properties, can provide good wear resistance and tear resistance, especially some reinforced or copolymer form fluoroplastics, and fluoroplastics have excellent dielectric strength and volume resistivity, so they are widely used in electrical and electronic industry as cable insulation layer material.

[0003] In the cable production process, the preheating of raw materials is an important step, which helps to improve the plasticity of raw materials, facilitate subsequent stretching and extrusion processes, and in the use process of the existing preheating tank, the raw materials are added into the heating tank, and the heat is conducted from the outside to the inside through the heating coil outside the heating tank, so that the raw materials in the heating tank are heated to achieve the purpose of preheating, but the heat conduction from the outside to the inside is a slow process, plus a large amount of raw materials accumulated in the heating tank, in a closed space, the heat transfer speed is slow, resulting in a long preheating time of raw materials, reducing the production efficiency of cable insulation layer. UTILITY MODEL CONTENTS

[0004] The utility model wants to solve technical problems in that provide a kind of raw material preheating device for cable production, by preheating component can be from the outside of outer heating tank to the inside heat conduction to raw material heating, and from the inside of inner heating tank to the outside heat conduction to raw material heating, add the heat transfer speed, so that raw material preheating speed is fast, solve the problem that raw material is accumulated in the heating tank, in a closed space, heat transfer speed is slow, improve the production efficiency of cable insulation layer.

[0005] The technical problems to be solved by the utility model are realized by the following technical solutions:

[0006] A kind of raw material preheating device for cable production, including: preheating tank, installation in the top of the preheating tank's inlet hopper, be set up in the inlet hopper inside two sides's discharge cavity, be set up in the top of the inlet hopper through the hinge rotation connection's sealing cover, be set up in the preheating tank inside's preheating component, the preheating component includes: outer heating tank, heating coil, inner heating tank, heating block, distribution cabinet and control panel.

[0007] Preferably, the preheating tank is internally fixedly provided with an outer heating tank, the outer heating tank is externally wound with a heating coil, the outer heating tank is internally fixedly provided with an inner heating tank, the inner heating tank is internally fixedly provided with a heating block, the preheating tank is externally provided with a power distribution cabinet, the power distribution cabinet is respectively connected with the heating coil and the heating block through wires, and the power distribution cabinet is externally provided with a control panel.

[0008] Preferably, the outer heating tank is internally provided with a U-shaped stirring frame, a gap is left between the U-shaped stirring frame and the inner heating tank, the U-shaped stirring frame is externally provided with stirring rods on both sides, the preheating tank is externally provided with a servo motor, the servo motor is connected with a motor shaft at the bottom, and the motor shaft penetrates through the inner part of the outer heating tank and is connected with the U-shaped stirring frame.

[0009] Preferably, the U-shaped stirring frame is externally provided with a support rod at the bottom, the inner heating tank is externally provided with a sealing bearing at the top, and the support rod is rotatably connected with the sealing bearing at the bottom.

[0010] Preferably, the preheating tank is internally provided with a heat preservation layer on both sides, and the heat preservation layer is made of glass fiber cotton material.

[0011] Preferably, the outer heating tank is internally provided with an installation groove on both sides, the installation groove is internally provided with a temperature sensor, the outer heating tank is externally provided with a discharge pipe on both sides, and the discharge pipe is externally provided with a ball valve.

[0012] Preferably, the discharge pipe is externally provided with a receiving hopper, the receiving hopper is externally provided with a fixing support, the receiving hopper is externally provided with a feeding pipe at the bottom, the feeding pipe is externally provided with a feeding motor at one side of the bottom, the feeding pipe is internally provided with an auger, the auger is drivingly connected with the output end of the feeding motor, and the feeding pipe is externally provided with a discharge pipe at the top.

[0013] The preheating assembly of the utility model has the advantages of the following:

[0014] (1) the preheating assembly of the utility model can conduct heat to the raw materials from the outside of the outer heating tank to the inside and from the inside of the inner heating tank to the outside, the heat transfer speed is increased, the preheating speed of the raw materials is fast, the problem that the raw materials are accumulated in the inner part of the heating tank and are in a closed space and the heat transfer speed is slow is solved, and the production efficiency of the cable insulation layer is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model.

[0016] Figure 2 It is a preheating tank cross section schematic view of the utility model.

[0017] Figure 3This is a schematic diagram of the internal structure of the preheating tank of this utility model.

[0018] Figure 4 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0019] Figure 5 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0020] Figures 1-5 In the middle section: 1. Preheating tank; 101. Feed hopper; 102. Discharge chamber; 103. Sealing cover; 2. External heating tank; 201. Heating coil; 202. Internal heating tank; 203. Heating block; 204. Power distribution cabinet; 205. Control panel; 206. U-shaped stirring rack; 207. Stirring rod; 208. Servo motor; 209. Motor shaft; 210. Support rod; 211. Sealed bearing; 3. Insulation layer; 4. Mounting groove; 401. Temperature sensor; 402. Discharge pipe; 403. Ball valve; 5. Receiving hopper; 501. Fixed bracket; 502. Feeding pipe; 503. Feeding motor; 504. Discharge pipe. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] Example

[0024] like Figures 1-5 As shown, a raw material preheating device for cable production includes: a preheating tank 1, a feeding hopper 101 installed on the top of the preheating tank 1, feeding chambers 102 disposed on both sides inside the feeding hopper 101, a sealing cover 103 disposed on the top of the feeding hopper 101 and rotatably connected by a hinge, and a preheating assembly disposed inside the preheating tank 1. The preheating assembly includes: an outer heating tank 2, a heating coil 201, an inner heating tank 202, a heating block 203, a power distribution cabinet 204, and a control panel 205.

[0025] The preheating tank 1 is internally fixedly installed with an outer heating tank 2, the outer heating tank 2 is externally installed with a heating coil 201, the outer heating tank 2 is internally fixedly installed with an inner heating tank 202, the inner heating tank 202 is internally fixedly installed with a heating block 203, the preheating tank 1 is externally installed with a power distribution cabinet 204, the power distribution cabinet 204 is respectively connected with the heating coil 201 and the heating block 203 through wires, the power distribution cabinet 204 is externally installed with a control panel 205, when the raw material is preheated, the sealing cover 103 at the top of the feeding hopper 101 is opened, the discharging cavity 102 is communicated with the inside of the outer heating tank 2, the raw material is added into the outer heating tank 2 from the discharging cavity 102, and the sealing cover 103 is tightly closed, the preheating temperature of the heating coil 201 and the heating block 203 is set through the control panel 205 on the power distribution cabinet 204, and the heating coil 201 and the heating block 203 are started to work, the heat generated by the heating coil 201 is conducted from the outside of the outer heating tank 2 to the inside, and the heat generated by the heating block 203 is conducted from the inside of the inner heating tank 202 to the outside, the heat transfer speed is added, so that the preheating speed of the raw material is fast, the problem that the raw material is accumulated in the heating tank and is in a closed space, and the heat transfer speed is slow is solved, and the production efficiency of the cable insulation layer is improved.

[0026] The preheating tank 1 is internally fixedly installed with an outer heating tank 2, the outer heating tank 2 is externally installed with a heating coil 201, the outer heating tank 2 is internally fixedly installed with an inner heating tank 202, the inner heating tank 202 is internally fixedly installed with a heating block 203, the preheating tank 1 is externally installed with a power distribution cabinet 204, the power distribution cabinet 204 is respectively connected with the heating coil 201 and the heating block 203 through wires, the power distribution cabinet 204 is externally installed with a control panel 205, when the raw material is preheated, the sealing cover 103 at the top of the feeding hopper 101 is opened, the discharging cavity 102 is communicated with the inside of the outer heating tank 2, the raw material is added into the outer heating tank 2 from the discharging cavity 102, and the sealing cover 103 is tightly closed, the preheating temperature of the heating coil 201 and the heating block 203 is set through the control panel 205 on the power distribution cabinet 204, and the heating coil 201 and the heating block 203 are started to work, the heat generated by the heating coil 201 is conducted from the outside of the outer heating tank 2 to the inside, and the heat generated by the heating block 203 is conducted from the inside of the inner heating tank 202 to the outside, the heat transfer speed is added, so that the preheating speed of the raw material is fast, the problem that the raw material is accumulated in the heating tank and is in a closed space, and the heat transfer speed is slow is solved, and the production efficiency of the cable insulation layer is improved.

[0027] The preheating tank 1 is internally fixedly installed with an outer heating tank 2, the outer heating tank 2 is externally installed with a heating coil 201, the outer heating tank 2 is internally fixedly installed with an inner heating tank 202, the inner heating tank 202 is internally fixedly installed with a heating block 203, the preheating tank 1 is externally installed with a power distribution cabinet 204, the power distribution cabinet 204 is respectively connected with the heating coil 201 and the heating block 203 through wires, the power distribution cabinet 204 is externally installed with a control panel 205, when the raw material is preheated, the sealing cover 103 at the top of the feeding hopper 101 is opened, the discharging cavity 102 is communicated with the inside of the outer heating tank 2, the raw material is added into the outer heating tank 2 from the discharging cavity 102, and the sealing cover 103 is tightly closed, the preheating temperature of the heating coil 201 and the heating block 203 is set through the control panel 205 on the power distribution cabinet 204, and the heating coil 201 and the heating block 203 are started to work, the heat generated by the heating coil 201 is conducted from the outside of the outer heating tank 2 to the inside, and the heat generated by the heating block 203 is conducted from the inside of the inner heating tank 202 to the outside, the heat transfer speed is added, so that the preheating speed of the raw material is fast, the problem that the raw material is accumulated in the heating tank and is in a closed space, and the heat transfer speed is slow is solved, and the production efficiency of the cable insulation layer is improved.

[0028] The bottom of the U-shaped stirring frame 206 is provided with a supporting rod 210, the top of the inner heating tank 202 is provided with a sealing bearing 211, the bottom of the supporting rod 210 is rotationally connected with the sealing bearing 211, when the motor shaft 209 drives the U-shaped stirring frame 206 to rotate, the bottom of the U-shaped stirring frame 206 is rotationally connected with the top of the sealing bearing 211 of the inner heating tank 202, so that the U-shaped stirring frame 206 can be stably supported.

[0029] The inner wall of the outer heating tank 2 is provided with a mounting groove 4 on both sides, a temperature sensor 401 is mounted in the mounting groove 4, a discharge pipe 402 is mounted on the bottom of the outer heating tank 2, and a ball valve 403 is mounted on the discharge pipe 402. During the preheating of the raw material, the temperature sensor 401 is mounted on both sides of the inner wall of the outer heating tank 2 and contacts the raw material, so that the temperature sensor 401 can detect the temperature of the raw material. The temperature sensor 401 is connected with the distribution cabinet 204 through wires, and the detected temperature information can be transmitted to the control panel 205 in the form of electrical signals. The temperature value displayed on the control panel 205 can be observed by the staff. After the raw material reaches the preheating temperature, the ball valve 403 is opened, and the raw material in the outer heating tank 2 is discharged into the receiving hopper 5, so that the preheated raw material can be processed further.

[0030] The bottom of the discharge pipe 402 is provided with a receiving hopper 5, the outside of the receiving hopper 5 is provided with a fixed support 501, the bottom of the receiving hopper 5 is provided with a feeding pipe 502, one side of the bottom of the feeding pipe 502 is provided with a feeding motor 503, and a screw conveyor is mounted in the feeding pipe 502 and is drivingly connected with the output end of the feeding motor 503. The top of the feeding pipe 502 is provided with a discharge pipe 504. After the raw material in the outer heating tank 2 is discharged into the receiving hopper 5, the feeding motor 503 is connected with the distribution cabinet 204 through wires, and the feeding motor 503 is started to work through the control panel 205. The screw conveyor is driven to rotate in the feeding pipe 502, and the top of the feeding pipe 502 is located at the feeding hopper of the extruding machine. The discharge pipe 504 is located in the feeding hopper. The preheated raw material is discharged from the bottom of the receiving hopper 5 into the feeding pipe 502, and the raw material is conveyed upward during the rotation of the screw conveyor and directly falls into the feeding hopper through the discharge pipe 504, and then the raw material is extruded by the extruding machine.

[0031] Working principle:

[0032] When the raw material is preheated, the sealing cover 103 at the top of the feeding hopper 101 is opened, the lower cavity 102 is communicated with the inside of the outer heating tank 2, the raw material is added into the inside of the outer heating tank 2 from the lower cavity 102, and the sealing cover 103 is closed tightly. The preheating temperature of the heating coil 201 and the heating block 203 is set through the control panel 205 on the power distribution cabinet 204, and the heating coil 201 and the heating block 203 are started to work. The heat generated by the heating coil 201 is conducted from the outside to the inside of the outer heating tank 2 to heat the raw material, and the heat generated by the heating block 203 is conducted from the inside to the outside of the inner heating tank 202 to heat the raw material. The heat transfer speed is increased, the preheating speed of the raw material is fast, the problem that the raw material is accumulated in the heating tank and is in a closed space, and the heat transfer speed is slow is solved, the production efficiency of the cable insulation layer is improved, and the servo motor 208 is started to work through the control panel 205. The servo motor 208 drives the motor shaft 209 to rotate, the motor shaft 209 drives the U-shaped stirring frame 206 and the stirring rod 207 to rotate, the raw material is stirred, the raw material is heated uniformly, and the preheating speed of the raw material is further increased.

[0033] During the preheating process of the raw material, the temperature sensor 401 is arranged on the two sides of the inner wall of the outer heating tank 2, the temperature sensor 401 is in contact with the raw material, the temperature sensor 401 can detect the temperature of the raw material, the temperature sensor 401 is connected with the power distribution cabinet 204 through wires, the detected temperature information can be transmitted to the control panel 205 in the form of electrical signal, and the temperature value displayed on the control panel 205 can be observed by the staff. When the raw material reaches the preheating temperature, the ball valve 403 is opened, the raw material in the outer heating tank 2 is discharged into the receiving hopper 5 from the discharge pipe 402, the feeding motor 503 is started to work through the control panel 205, the feeding motor 503 drives the auger to rotate in the feeding pipe 502, the feeding pipe 502 is arranged on one side at the top of the feeding hopper of the extruding machine, the discharge pipe 504 is arranged in the feeding hopper, the preheated raw material is discharged into the feeding pipe 502 from the bottom of the receiving hopper 5, the raw material is conveyed upwards in the rotating process of the auger, and then directly falls into the feeding hopper through the discharge pipe 504. Then the raw material is extruded by the extruding machine.

[0034] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0035] The above has carried out the detailed introduction to the raw material preheating device for cable production provided by the embodiment of the application, the principle and implementation mode of the application are described in this paper, the above embodiment is only used to help understand the technical scheme of the application and its core idea, and the person skilled in the art should understand that: the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the application.

Claims

1. A raw material preheating device for cable production, characterized in that, Include: Preheating tank (1); The inlet hopper (101) is installed on the top of the preheating tank (1); The discharge cavity (102) is arranged inside the inlet hopper (101) on both sides; The sealing cover (103) is arranged on the top of the inlet hopper (101) and connected by hinge rotation; The preheating assembly is arranged in the preheating tank (1), and the preheating assembly comprises an external heating tank (2), a heating coil (201), an internal heating tank (202), a heating block (203), a power distribution cabinet (204) and a control panel (205).

2. The raw material preheating device for cable production according to claim 1, characterized in that, The external heating tank (2) is fixedly installed in the preheating tank (1), the heating coil (201) is wound on the outside of the external heating tank (2), the internal heating tank (202) is fixedly installed in the external heating tank (2), the heating block (203) is fixedly installed in the internal heating tank (202), the power distribution cabinet (204) is installed on the outer end of the preheating tank (1), the power distribution cabinet (204) is connected with the heating coil (201) and the heating block (203) through wires respectively, and the control panel (205) is installed on the outside of the power distribution cabinet (204).

3. The raw material preheating device for cable production according to claim 2, characterized in that, The U-shaped stirring frame (206) is arranged in the external heating tank (2), a gap is left between the U-shaped stirring frame (206) and the internal heating tank (202), the stirring rods (207) are installed on both sides of the outer end of the U-shaped stirring frame (206), the servo motor (208) is installed on the top of the preheating tank (1), the motor shaft (209) is connected to the bottom of the servo motor (208), and the motor shaft (209) penetrates the internal heating tank (2) and is connected with the U-shaped stirring frame (206).

4. The raw material preheating device for cable production according to claim 3, characterized in that, The support rod (210) is installed on the bottom of the U-shaped stirring frame (206), the sealing bearing (211) is installed on the top of the internal heating tank (202), and the bottom of the support rod (210) is rotatably connected with the sealing bearing (211).

5. The raw material preheating device for cable production according to claim 1, characterized in that, The heat preservation layer (3) is installed on both sides of the inner wall of the preheating tank (1), and the heat preservation layer (3) is made of glass fiber cotton material.

6. The raw material preheating device for cable production according to claim 2, characterized in that, The mounting grooves (4) are formed on both sides of the inner wall of the external heating tank (2), the temperature sensor (401) is installed in the mounting grooves (4), the discharge pipes (402) are installed on both sides of the bottom of the external heating tank (2), and the ball valves (403) are installed on the discharge pipes (402).

7. The raw material preheating device for cable production according to claim 6, characterized in that, The receiving hopper (5) is installed on the bottom of the discharge pipe (402), the fixed support (501) is installed on the outside of the receiving hopper (5), the feeding pipe (502) is installed on the bottom end of the receiving hopper (5), the feeding motor (503) is installed on one side of the bottom of the feeding pipe (502), the auger is installed in the feeding pipe (502), the output end of the feeding motor (503) is drivingly connected with the auger, and the discharge pipe (504) is installed on the top of the feeding pipe (502).

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