A fireproof mud extrusion molding device for insulating cable production

By designing a fire-proof mud extrusion molding device for insulated cable production, the combination of scraping ring and guide cover is used to solve the problem of adhesion and dry bonding of fire-proof mud during the stirring process, and the uniformity of fire-proof mud and the quality of finished cables are improved.

CN119742127APending Publication Date: 2025-04-01GOLD CUP ELECTRIC APP HENGYANG CABLES
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Patent Information

Application Number
CN202411833002.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

In the prior art, fireproof mud is prone to adhere to the inner wall of the equipment and dry it during the stirring process, which increases the difficulty of cleaning the equipment and may affect the uniformity of the fireproof mud and affect the quality of the finished cable.

Method used

A fire-resistant mud extrusion molding device is designed, including a sludge scraping assembly and a conveying assembly. Through the cooperation of the scraping ring and the guide cover, the dry-bonded fire-resistant mud on the inner wall of the mixing drum can be effectively scraped away from the dry-bonded fire-resistant mud on the inner wall of the mixing drum and stored between the extrusion ring and the guide cover to prevent the dry-bonded particles from mixing into the wet fire-resistant mud.

Benefits of technology

Effective scraping and storage of dry junction fire-proof mud on the inner wall of the mixing drum is achieved, and dry junction particles are avoided affecting the uniformity of the fire-proof mud, thereby improving the integrity of the fire-proof mud wrapped cable core and the quality of the finished cable.

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Abstract

The present invention relates to the technical field of cable production equipment, and in particular to a fireproof mud extrusion molding device for insulating cable production, including a box body and a mixing drum, etc.; the box body is fixedly connected to and connected with the mixing drum; a constant temperature and humidity control device is arranged in the box body; and a baffle is slidably connected to the box body. The present invention drives the extrusion ring and the parts connected thereto to move downward from the uppermost side of the mixing drum through a second connecting rod, and scrapes the inner wall of the mixing drum through a scraping ring to scrape off the dry fireproof mud adhering to the inner wall of the mixing drum, and pushes and guides the fireproof mud to the middle of the mixing drum through a guide cover, and a small amount of fireproof mud enters between the extrusion ring and the guide cover from the gap between the lower side of the guide cover and the inner wall of the mixing drum, so that the dry fireproof mud can be squeezed into the space between the extrusion ring and the guide cover by this part of the fireproof mud to be stored, thereby preventing the scraped dry fireproof mud from mixing into other fireproof muds.
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Description

Technical Field

[0001] The invention relates to the technical field of cable production equipment, and in particular to a fireproof mud extrusion molding device for insulating cable production. Background Art

[0002] When producing insulated fireproof cables, after the wires are twisted, a layer of fireproof mud needs to be wrapped on the twisted cable core to protect the cable core. In the prior art, the raw material powder and adhesive of the fireproof mud are first stirred into qualified fireproof mud in a mixer, and then transported to the extruder and added into the extruder to wrap the cable core.

[0003] However, during the stirring process of the fireproof mud, due to the certain viscosity of the fireproof mud, some of the fireproof mud will easily adhere to the surface of the inner wall of the equipment after contacting it, and gradually dry out due to the evaporation of water. As the stirring proceeds, the difficulty of cleaning the equipment increases, and the fireproof mud forms a circulation flow in the equipment. The flowing fireproof mud will flush the dry fireproof mud attached to the inner wall, which may cause some dry fireproof mud particles to fall off and mix into other wet fireproof muds, affecting the uniformity of the fireproof mud. Due to the influence of the dry particles, the fireproof mud may not be able to form a complete and tight wrapping layer when wrapping the cable core, ultimately affecting the quality of the finished cable. Summary of the invention

[0004] In order to overcome the disadvantage that when the existing stirring equipment is stirring the fireproof mud, the flowing fireproof mud may cause some of the dry fireproof mud particles attached to the inner wall to fall off, resulting in affecting the uniformity of the fireproof mud and ultimately affecting the quality of the finished cable, the present invention provides a fireproof mud extrusion molding device for the production of insulated cables.

[0005] The technical solution of the present invention is: a fireproof mud extrusion molding device for the production of insulated cables, comprising a box body, a mixing drum, a connecting frame and a rotating rod; a mixing drum is fixedly connected to and connected to the box body; a constant temperature and humidity control device is arranged in the box body; a baffle is slidably connected to the box body; a connecting frame is fixedly connected to the mixing drum; the connecting frame is rotatably connected to the rotating rod; it also includes a first connecting rod, a rotating rod, a conveying drum, an extrusion drum, a mud scraping assembly and a conveying assembly; a first connecting rod is fixedly connected to the rotating rod; three rotating rods are rotatably connected to the first connecting rod, and a number of stirring plates are arranged on the rotating rod; a conveying drum is fixedly connected to and connected to the box body; an extrusion drum is fixedly connected to the conveying drum; a mud scraping assembly for scraping off dry fireproof mud on the inner wall of the mixing drum is connected to the connecting frame; a conveying assembly for conveying fireproof mud is connected to the box body.

[0006] More preferably, the scraper assembly includes a driving member, a second connecting rod, an extrusion ring, a guide cover and a scraper ring; a plurality of driving members are fixedly connected to the connecting frame; a second connecting rod is fixedly connected to the output end of each driving member; an extrusion ring is fixedly connected to the lower side of all the second connecting rods, and the upper side of the extrusion ring is in close contact with the inner wall of the mixing drum; a guide cover is fixedly connected to the lower side of the extrusion ring; there is a certain gap between the lower side of the guide cover and the inner wall of the mixing drum, and a scraper ring is fixedly connected to the side of the guide cover close to the mixing drum through a connecting block, and the scraper ring is in close contact with the inner wall of the mixing drum.

[0007] More preferably, the conveying assembly includes a screw rod, a push plate and an auger; the screw rod is rotatably connected in the box; the push plate is screwed on the screw rod; the auger is fixedly connected to the left side of the screw rod, and the auger is located in the conveying cylinder.

[0008] More preferably, it also includes an air suction ring; the air suction ring is fixedly connected to the extrusion ring and penetrates the extrusion ring; the second connecting rod is hollow inside, and the second connecting rod is connected to the external air pump through the air pipe, and the second connecting rod is connected to the air suction ring.

[0009] More preferably, the extrusion ring is shaped to be inclined from the outer upper side toward the inner lower side.

[0010] More preferably, the guide cover is in the shape of a circular ring and is inclined from the inner upper side toward the outer lower side.

[0011] More preferably, three abutment surfaces are arranged on the first connecting rod; and three blocking bars are arranged on the first connecting rod.

[0012] More preferably, a baffle is provided at the air inlet of the air intake ring.

[0013] More preferably, a handle is provided on the baffle.

[0014] More preferably, it also includes a slide rail, an electric slider, a cleaning cover and a water spray half ring; two slide rails that are symmetrical on the left and right are laterally fixed to the lower side of the connecting frame; an electric slider is slidably connected to each slide rail; a cleaning cover is fixed to each electric slider, the cleaning cover is semi-cylindrical, and the inside of the cleaning cover is hollow, and the two cleaning covers form a complete cylinder; a number of water spray half rings are fixed to the upper side of the inside of the cleaning cover, and a number of water spray ports are arranged on the lower side of the water spray half ring, and all the water spray half rings are connected to an external water pump through a water pipe; a drain pipe is connected to the lower side of the cleaning cover.

[0015] The beneficial effect is that: the present invention realizes that when a certain amount of dry fireproof mud is found to be adhered to the inner wall of the mixing drum, the second connecting rod drives the extrusion ring and the parts connected thereto to move downward from the uppermost side of the mixing drum, and then the scraper ring scrapes the inner wall of the mixing drum to gradually scrape off the dry fireproof mud adhered to the inner wall of the mixing drum, and at the same time, the guide cover pushes and guides the fireproof mud close to the inner wall of the mixing drum toward the middle of the mixing drum, and a small amount of fireproof mud enters between the extrusion ring and the guide cover from the gap between the lower side of the guide cover and the inner wall of the mixing drum, so that the dry fireproof mud scraped off by the scraper ring can be squeezed into the space between the extrusion ring and the guide cover through this part of the fireproof mud and stored, thereby preventing the scraped dry fireproof mud from being mixed into other fireproof muds;

[0016] When scraping is performed on the upper side of the mixing drum by the scraping ring, and no fireproof mud passes through the gap between the lower side of the guide cover and the inner wall of the mixing drum, the dry fireproof mud scraped away by the scraping ring is pulled upward by the suction ring, so that it enters into the space between the extrusion ring and the guide cover and is stored. When fireproof mud passes through the gap between the lower side of the guide cover and the inner wall of the mixing drum, the air pump is controlled to stop suction, so that the space between the extrusion ring and the guide cover is kept in a natural ventilation state with the outside world through the second connecting rod and the suction ring, so as to ensure that the fireproof mud can normally enter into the space between the extrusion ring and the guide cover;

[0017] After each control drive member drives the second connecting rod and the parts connected to it to reset upward, the two cleaning hoods move toward each other to form a complete cylinder, wrapping and sealing the suction ring, extrusion ring, guide hood and scraper ring, and cleaning the suction ring, extrusion ring, guide hood and scraper ring through the water spraying half ring, flushing away the fireproof mud above them, and dispersing the fireproof mud, and then the dispersed fireproof mud flows into the drain pipe connected to the cleaning hood with the water and is discharged away, thereby achieving the cleaning of the suction ring, extrusion ring, guide hood and scraper ring, so that they can scrape and clean the inner wall of the mixing drum next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the fireproof mud extrusion molding device for insulating cable production of the present invention;

[0019] Figure 2 is a cross-sectional view of a mixing drum of the present invention;

[0020] Figure 3 It is a schematic diagram of a three-dimensional structure of a first connecting rod and a rotating rod combination of the present invention;

[0021] Figure 4 It is a combined cross-sectional view of the box body and the mixing drum of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the mud scraping assembly of the present invention;

[0023] Figure 6It is a state diagram of the cleaning cover cleaning and scraping mud assembly of the present invention;

[0024] Figure 7 It is a cross-sectional view of the cleaning cover of the present invention.

[0025] In the accompanying drawings: 1-box, 1001-baffle, 2-mixing drum, 3-connecting frame, 4-rotating rod, 5-first connecting rod, 5001-abutment surface, 5002-baffle, 6-rotating rod, 6001-mixing plate, 7-conveyor drum, 8-extrusion drum, 101-driving member, 102-second connecting rod, 103-suction ring, 104-extrusion ring, 105-guide cover, 106-scraper ring, 201-screw, 202-push plate, 203-auger, 301-slide rail, 302-electric slider, 303-cleaning cover, 304-water spray half ring. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0027] Example 1

[0028] A fireproof mud extrusion molding device for insulating cable production, such as Figure 1-Figure 7 As shown, it includes a box body 1, a mixing drum 2, a connecting frame 3 and a rotating rod 4; the mixing drum 2 is fixedly connected to the upper side of the box body 1 and is connected, and a powder adding hose and a rubber adding hose are provided on the mixing drum 2, and valves are provided on the powder adding hose and the rubber adding hose; a constant temperature and humidity control device is provided in the box body 1; a baffle 1001 is slidably connected to the box body 1, and the connecting port between the box body 1 and the mixing drum 2 is blocked by the baffle 1001; the mixing drum 2 is fixedly connected with a connecting frame 3; the connecting frame 3 is rotatably connected to the rotating rod 4, and a motor is provided at the connection between the connecting frame 3 and the rotating rod 4;

[0029] It also includes a first connecting rod 5, a rotating rod 6, a conveying cylinder 7, an extruding cylinder 8, a mud scraping assembly and a conveying assembly; the first connecting rod 5 is fixedly connected to the lower side of the rotating rod 4; three rotating rods 6 are rotatably connected to the first connecting rod 5, and three stirring plates 6001 are arranged on the rotating rod 6; the conveying cylinder 7 is fixedly connected and connected to the left side of the box body 1; the extruding cylinder 8 is fixedly connected and connected to the left side of the conveying cylinder 7, and a cable core is passed through the extruding cylinder 8; the mud scraping assembly is connected to the connecting frame 3; and the conveying assembly is connected to the box body 1.

[0030] The mud scraper assembly includes a driving member 101, a second connecting rod 102, an extrusion ring 104, a guide cover 105 and a scraper ring 106; two driving members 101 are fixedly connected to the connecting frame 3 in a front-to-back symmetrical manner, and the driving members 101 are electric push rods; the output end of each driving member 101 is fixedly connected to a second connecting rod 102; a squeezing ring 104 is commonly fixedly connected to the lower side of all the second connecting rods 102, and the upper side of the squeezing ring 104 is tightly attached to the inner wall of the mixing drum 2; a guide cover 105 is fixedly connected to the lower side of the squeezing ring 104; there is a certain gap between the lower side of the guide cover 105 and the inner wall of the mixing drum 2, and a scraper ring 106 is fixedly connected to the side of the guide cover 105 close to the mixing drum 2 through a connecting block, and the scraper ring 106 is tightly attached to the inner wall of the mixing drum 2.

[0031] The conveying assembly includes a screw rod 201, a push plate 202 and an auger 203; the screw rod 201 is rotatably connected in the box body 1, and a motor is provided at the connection between the box body 1 and the screw rod 201; the push plate 202 is screwed on the screw rod 201; the auger 203 is fixedly connected to the left side of the screw rod 201, and the auger 203 is located in the conveying cylinder 7.

[0032] It also includes an air intake ring 103 ; the air intake ring 103 is fixedly connected to the extrusion ring 104 , and the air intake ring 103 penetrates the extrusion ring 104 ; the second connecting rod 102 is hollow inside, and the second connecting rod 102 is connected to the external air pump through the air pipe, and the second connecting rod 102 is connected to the air intake ring 103 .

[0033] The shape of the extrusion ring 104 is inclined from the outer upper side toward the inner lower side.

[0034] The guide cover 105 is in a circular shape and is inclined from the inner upper side toward the outer lower side.

[0035] Three abutment surfaces 5001 are arranged on the first connecting rod 5; three baffle bars 5002 are arranged on the first connecting rod 5; when the first connecting rod 5 drives the rotating rod 6 to rotate clockwise when viewed from top to bottom, the rotating rod 6 abuts against the baffle bars 5002, and when the first connecting rod 5 drives the rotating rod 6 to rotate counterclockwise when viewed from top to bottom, the rotating rod 6 abuts against the abutment surfaces 5001.

[0036] A baffle is provided at the air inlet of the air intake ring 103 to prevent fireproof mud from entering the air intake ring 103 and causing blockage thereof.

[0037] A handle is provided on the baffle 1001 so that the baffle 1001 can be manually pulled by the handle.

[0038] like Figure 1As shown, with the side where the extruder 8 is located as the left side, when working, the valves of the powder adding hose and the glue adding hose on the mixing drum 2 are opened, and after an appropriate amount of fireproof mud raw material powder and adhesive glue are respectively input into the mixing drum 2 through the powder adding hose and the glue adding hose, the valves on the powder adding hose and the glue adding hose are closed, and the motor at the connection between the connecting frame 3 and the rotating rod 4 is controlled to drive the rotating rod 4 to rotate clockwise from top to bottom, and the first connecting rod 5 is driven to rotate by the rotating rod 4, and then the rotating rod 6 is driven to rotate clockwise from top to bottom by the first connecting rod 5, so that the fireproof mud raw material powder and adhesive glue in the mixing drum 2 are stirred by the stirring plate 6001, so that the raw material powder and the adhesive glue are gradually mixed to form fireproof mud. At this time, under the obstruction of the fireproof mud, the rotating rod 6 is abutted against the baffle 5002.

[0039] During the stirring process of the fireproof mud, due to the certain viscosity of the fireproof mud, some of the fireproof mud will come into contact with the inner wall of the equipment during the stirring process by the stirring plate 6001, and will easily adhere to its surface, and will gradually dry out due to the evaporation of water. As the stirring progresses, the fireproof mud will circulate in the mixing drum 2, and the flowing fireproof mud will flush the dry fireproof mud attached to the inner wall, which may cause some dry fireproof mud particles to fall off and mix into other wet fireproof muds, thus affecting the uniformity of the fireproof mud. Due to the influence of the dry particles, the fireproof mud may not be able to form a complete and tight wrapping layer when wrapping the cable core, which will ultimately affect the quality of the finished cable. When stirring the fireproof mud, when it is found that a certain amount of dry fireproof mud is adhered to the inner wall of the mixing drum 2, the second connecting rod 102 is driven downward by controlling the driving member 101, and then the extrusion ring 104 and the parts connected to it are driven to move downward from the uppermost side of the mixing drum 2 by the second connecting rod 102, and then the inner wall of the mixing drum 2 is scraped by the scraper ring 106 to scrape off and clean the dry fireproof mud adhered to the inner wall of the mixing drum 2 in time. It should be noted that in order to prevent the stirring plate 6001 from blocking the downward movement of the extrusion ring 104 and the parts connected to it, first control the motor at the connection between the connecting frame 3 and the rotating rod 4 to drive the rotating rod 4 and the first connecting rod 5 to rotate counterclockwise from top to bottom. At this time, Figure 4 As shown, under the obstruction of the fireproof mud, the rotating rod 6 rotates to abut against the abutting surface 5001, and then as the rotating rod 6 rotates, the distance between the end of the stirring plate 6001 and the inner wall of the stirring drum 2 increases.

[0040] Furthermore, in order to prevent the scraped dry fireproof mud from being mixed with other fireproof muds, while the extrusion ring 104 and the parts connected to it are driven downward by the second connecting rod 102, the fireproof mud close to the inner wall of the mixing drum 2 is pushed and guided toward the middle of the mixing drum 2 through the guide cover 105 which is inclined from the inner upper side toward the outer lower side. Since there is a certain gap between the lower side of the guide cover 105 and the inner wall of the mixing drum 2, a small amount of fireproof mud enters between the extrusion ring 104 and the guide cover 105 from the gap between the lower side of the guide cover 105 and the inner wall of the mixing drum 2. Therefore, the dry fireproof mud scraped off by the scraper ring 106 can be squeezed into the space between the extrusion ring 104 and the guide cover 105 and stored through this part of the fireproof mud, thereby preventing the scraped dry fireproof mud from being mixed with other fireproof muds.

[0041] Furthermore, in order to prevent the fireproof mud from overflowing from the mixing drum 2 during mixing, so that the mixing drum 2 is not filled with the fireproof mud, when the scraper ring 106 is used to scrape the upper side of the mixing drum 2, no fireproof mud passes through the gap between the lower side of the guide cover 105 and the inner wall of the mixing drum 2. In order to prevent the dry fireproof mud scraped off by the scraper ring 106 from falling downward and being unable to be stored between the extrusion ring 104 and the guide cover 105, the air pump is controlled to suck the second connecting rod 102, and then the air is sucked. The ring 103 pulls upward the dry fireproof mud scraped off by the scraper ring 106, so that it enters into the space between the extrusion ring 104 and the guide cover 105 and is stored. When there is fireproof mud passing through the gap between the lower side of the guide cover 105 and the inner wall of the mixing drum 2, the air pump is controlled to stop suction, so that the space between the extrusion ring 104 and the guide cover 105 maintains a natural ventilation state with the outside world through the second connecting rod 102 and the suction ring 103, so as to ensure that the fireproof mud can normally enter into the space between the extrusion ring 104 and the guide cover 105.

[0042] After the scraper ring 106 is guided to the bottom of the mixing drum 2, the driving member 101 can be controlled to drive the second connecting rod 102 and the parts connected thereto to reset upward. During this process, the fireproof mud above it is squeezed and guided toward the middle of the mixing drum 2 through the extrusion ring 104 which is inclined from the outer upper side toward the inner lower side, so as to reduce the resistance of the extrusion ring 104 to the upward movement.

[0043] After the fireproof mud in the mixing drum 2 is evenly stirred, the baffle 1001 can be manually pulled to the right to release the blockage of the baffle 1001 on the communication port between the box body 1 and the mixing drum 2, so that the fireproof mud in the mixing drum 2 can fall downward into the box body 1, and then the baffle 1001 is manually pushed to the left to reset, and the motor at the connection between the box body 1 and the screw rod 201 drives the screw rod 201 and the auger 203 to rotate, so that the push plate 202 moves from the rightmost side of the box body 1 to the left, thereby Push the fireproof mud to the left so that the fireproof mud enters the conveying tube 7, and then push the fireproof mud into the extrusion tube 8 through the auger 203, so that the fireproof mud is extruded and wrapped on the cable core moving from back to front in the extrusion tube 8, thereby gradually wrapping the fireproof mud on the cable core, and while the above operations are being carried out, the next fireproof mud stirring is also carried out in the mixing drum 2. When the fireproof mud in the box body 1 is completely squeezed into the extrusion tube 8, the fireproof mud in the mixing drum 2 is also stirred, thereby effectively ensuring the continuity of the fireproof mud during extrusion.

[0044] It should be noted that, since the box body 1 has a built-in constant temperature and humidity control device and the box body 1 is in a sealed state, the fireproof mud can be effectively prevented from drying out in the box body 1.

[0045] Example 2

[0046] On the basis of Example 1, Figure 1 , Figure 6 and Figure 7 As shown, it also includes a slide rail 301, an electric slider 302, a cleaning cover 303 and a water spray half ring 304; two slide rails 301 that are symmetrical on the left and right are connected by transverse bolts on the lower side of the connecting frame 3; each slide rail 301 is slidably connected to an electric slider 302; each electric slider 302 is fixedly connected to a cleaning cover 303, the cleaning cover 303 is semi-cylindrical, and the inside of the cleaning cover 303 is hollow, and the two cleaning covers 303 form a complete cylinder; three water spray half rings 304 are fixedly connected to the upper side of the inside of the cleaning cover 303, and a plurality of water spray ports are arranged on the lower side of the water spray half ring 304, and all the water spray half rings 304 are connected to an external water pump through a water pipe; the lower side of the cleaning cover 303 is connected to a drain pipe.

[0047] After each time the control driving member 101 drives the second connecting rod 102 and the parts connected thereto to reset upward, Figure 6As shown, the electric slider 302 is controlled to drive the two cleaning hoods 303 and the parts connected thereto to move toward each other, so that the two cleaning hoods 303 form a complete cylinder, which wraps and seals the air intake ring 103, the extrusion ring 104, the guide hood 105 and the scraper ring 106, and then the water pump is controlled to pass water to the water spray half ring 304, so that the air intake ring 103, the extrusion ring 104, the guide hood 105 and the scraper ring 106 are cleaned through the water spray half ring 304, the fireproof mud above them is flushed away, and the fireproof mud is dispersed, and then the dispersed fireproof mud flows into the drain pipe connected to the cleaning hood 303 with the water and is discharged away, thereby realizing the cleaning of the air intake ring 103, the extrusion ring 104, the guide hood 105 and the scraper ring 106, so as to facilitate the next scraping and cleaning of the inner wall of the mixing drum 2.

[0048] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A fireproof mud extrusion molding device for insulating cable production, comprising a box (1), a mixing drum (2), a connecting frame (3) and a rotating rod (4); the box (1) is fixedly connected to and communicated with the mixing drum (2); a constant temperature and humidity control device is arranged in the box (1); a baffle (1001) is slidably connected to the box (1); the mixing drum (2) is fixedly connected to the connecting frame (3); the connecting frame (3) is rotatably connected to the rotating rod (4); the characteristics are: It also comprises a first connecting rod (5), a rotating rod (6), a conveying cylinder (7), an extruding cylinder (8), a mud scraping assembly and a conveying assembly; the first connecting rod (5) is fixedly connected to the rotating rod (4); three rotating rods (6) are rotatably connected to the first connecting rod (5), and a plurality of stirring plates (6001) are arranged on the rotating rod (6); the conveying cylinder (7) is fixedly connected to and connected to the box body (1); the extruding cylinder (8) is fixedly connected to and connected to the conveying cylinder (7); The connection frame (3) is connected with a scraping assembly for scraping off the dried fireproof mud on the inner wall of the mixing drum (2); The box body (1) is connected with a conveying assembly for conveying fireproof mud.

2. A fireproof mud extrusion molding device for insulating cable production according to claim 1, characterized in that: The mud scraping assembly comprises a driving member (101), a second connecting rod (102), an extrusion ring (104), a guide cover (105) and a scraping ring (106); a plurality of driving members (101) are fixedly connected to a connecting frame (3); the output end of each driving member (101) is fixedly connected to a second connecting rod (102); a squeezing ring (104) is commonly fixedly connected to the lower side of all the second connecting rods (102); the upper side of the squeezing ring (104) is in close contact with the inner wall of the mixing drum (2); the lower side of the squeezing ring (104) is fixedly connected to the guide cover (105); a certain gap exists between the lower side of the guide cover (105) and the inner wall of the mixing drum (2); a scraping ring (106) is fixedly connected to the side of the guide cover (105) close to the mixing drum (2) through a connecting block; the scraping ring (106) is in close contact with the inner wall of the mixing drum (2).

3. The fireproof mud extrusion molding device for insulating cable production according to claim 1 is characterized in that: The conveying assembly comprises a screw rod (201), a push plate (202) and an auger (203); the screw rod (201) is rotatably connected inside the box body (1); the push plate (202) is screwed onto the screw rod (201); the auger (203) is fixedly connected to the left side of the screw rod (201), and the auger (203) is located inside the conveying cylinder (7).

4. The fireproof mud extrusion molding device for insulating cable production according to claim 2 is characterized in that: It also includes an air intake ring (103); the air intake ring (103) is fixedly connected to the extrusion ring (104), and the air intake ring (103) penetrates the extrusion ring (104); the second connecting rod (102) is hollow inside, and the second connecting rod (102) is connected to an external air pump through an air pipe, and the second connecting rod (102) is connected to the air intake ring (103).

5. The fireproof mud extrusion molding device for insulating cable production according to claim 2 is characterized in that: The shape of the extrusion ring (104) is inclined from the outer upper side toward the inner lower side.

6. The fireproof mud extrusion molding device for insulating cable production according to claim 2, characterized in that: The guide cover (105) is in the shape of a circular ring and is inclined from the inner upper side toward the outer lower side.

7. The fireproof mud extrusion molding device for insulating cable production according to claim 1 is characterized in that: The first connecting rod (5) is provided with three abutting surfaces (5001); the first connecting rod (5) is provided with three blocking bars (5002).

8. The fireproof mud extrusion molding device for insulating cable production according to claim 4 is characterized in that: A baffle is provided at the air intake port of the air intake ring (103).

9. The fireproof mud extrusion molding device for insulating cable production according to claim 1, characterized in that: A handle is provided on the baffle (1001).

10. The fireproof mud extrusion molding device for insulating cable production according to claim 2, characterized in that: The utility model also comprises a slide rail (301), an electric slider (302), a cleaning cover (303) and a water spraying semi-ring (304); two slide rails (301) which are symmetrical to each other are transversely fixedly connected to the lower side of the connecting frame (3); an electric slider (302) is slidably connected to each slide rail (301); a cleaning cover (303) is fixedly connected to each electric slider (302); the cleaning cover (303) is semi-cylindrical, and the inside of the cleaning cover (303) is hollow, and the two cleaning covers (303) form a complete cylinder; a plurality of water spraying semi-rings (304) are fixedly connected to the upper side of the inside of the cleaning cover (303), and a plurality of water spraying ports are arranged on the lower side of the water spraying semi-ring (304), and all the water spraying semi-rings (304) are connected to an external water pump through a water pipe; and a drainage pipe is connected to the lower side of the cleaning cover (303).