Silicone rubber preparation device for high-voltage cable

Abstract

The utility model relates to the technical field of silicone rubber preparation, and discloses a silicone rubber preparation device for a high-voltage cable, which solves the problem of insufficient stirring caused by feeding a large number of raw materials into stirring equipment at one time at present. A discharging mechanism and a scraping mechanism are mounted on the stirring barrel, and the discharging mechanism comprises a U-shaped frame fixed to the top of the stirring barrel; according to the utility model, through the cooperation between the motor and the stirring shaft and the cooperation between the connecting plate and the hopper, the hopper can conveniently drive the blanking pipe to rotate between the inner ring and the outer ring, and through the cooperation between the sleeve plate and the supporting column and the ball, the stability of the hopper and the blanking pipe during rotation is ensured; and then, the raw materials in the hopper can be fed into the stirring barrel from the two discharging openings at intervals, and the raw materials can be stirred through the stirring rods, so that the raw materials are discharged at intervals conveniently, and sufficient stirring is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicone rubber preparation, in particular to a silicone rubber preparation device for high-voltage cables. Background Art

[0002] Silicone rubber is a rubber with a main chain composed of alternating silicon and oxygen atoms, and two organic groups are usually attached to the silicon atom. It has good high and low temperature resistance, electrical insulation, chemical stability and physiological inertness. These characteristics make silicone rubber widely used in the protection and insulation of high-voltage cables. In high-voltage cables, silicone rubber is mainly used for the production of cable accessories, such as prefabricated cable accessories.

[0003] During the preparation process of silicone rubber, a stirring device is required to stir and mix the raw materials. However, in the prior art, a large amount of raw materials are usually put into the stirring device at one time, which easily leads to excessive raw materials and insufficient stirring, thereby causing uneven mixing of the raw materials. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a silicone rubber preparation device for high-voltage cables, which effectively solves the problem of insufficient stirring caused by putting a large amount of raw materials into a stirring device at one time.

[0005] To achieve the above object, the utility model provides the following technical solution: a device for preparing silicone rubber for high-voltage cables, comprising a mixing drum, a discharge pipe is fixedly installed at the bottom of the mixing drum, and a feeding mechanism and a scraping mechanism are installed on the mixing drum;

[0006] The unloading mechanism includes a U-shaped frame fixed to the top of the mixing drum, a motor is fixedly installed on the inner top wall of the U-shaped frame, a stirring shaft is fixedly installed on the motor, a connecting plate is fixedly sleeved on the outer side of the stirring shaft, a hopper is fixedly installed on the outer side of the connecting plate, a unloading pipe is fixedly installed at the bottom of the hopper, the bottom end of the unloading pipe is fitted with the top of the mixing drum, two unloading ports are symmetrically arranged on the top of the mixing drum, an inner ring and an outer ring are fixedly installed in the middle of the top of the mixing drum, the inner ring is located on the inner side of the outer ring, the stirring shaft is located on the inner side of the inner ring, the two unloading ports are both located between the inner ring and the outer ring, and the unloading pipe is located between the inner ring and the outer ring.

[0007] Preferably, the outer side of the discharge pipe is fixedly sleeved with a sleeve plate located above the inner ring and the outer ring, and two support columns are symmetrically fixedly installed on the bottom of the sleeve plate. Balls are installed at the bottom ends of the two support columns, and the two balls are respectively fitted with the inner ring and the outer ring.

[0008] Preferably, the bottom end of the stirring shaft extends to the interior of the stirring drum, and the stirring shaft is rotatably connected to the stirring drum, the outer side of the stirring shaft is fixedly sleeved with a sleeve located in the stirring drum, and stirring rods are fixedly installed at equal distances on the outer side of the sleeve.

[0009] Preferably, the scraper mechanism includes two mounting rings fixed to the outside of the stirring shaft, both mounting rings are located inside the stirring drum, the two mounting rings are respectively fixed to the two ends of the sleeve, side tubes are fixedly installed on the outside of the two mounting rings, the insides of the two side tubes are movably sleeved with the same U-shaped round rod, the outside of the U-shaped round rod is symmetrically fixedly sleeved with two blocks, the side of the two blocks away from the sleeve is fixedly installed with the same scraper, and the scraper is in contact with the inner wall of the stirring drum.

[0010] Preferably, springs are fixedly connected between the two mounting rings and the U-shaped round rod, and the two springs are respectively located inside the two side tubes.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model facilitates the hopper to drive the discharge pipe to rotate between the inner ring and the outer ring through the cooperation between the motor and the stirring shaft and the connecting plate and the hopper, and ensures the stability of the hopper and the discharge pipe during rotation through the cooperation between the sleeve plate, the support column and the ball bearing, so that the raw materials in the hopper can be put into the mixing drum from the two discharge ports at intervals, and the raw materials can be stirred by the stirring rod, so that the raw materials can be discharged at intervals to achieve full stirring;

[0013] (2) The new type facilitates the close fit between the scraper and the inner wall of the mixing drum through the cooperation between the mounting ring and the side cylinder, and the U-shaped round rod and the spring, and facilitates the rotation of the scraper to scrape off the raw materials adhering to the inner wall of the mixing drum through the cooperation between the motor, the mixing shaft and the mounting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 This is a schematic diagram of the structure of a device for preparing silicone rubber for high-voltage cables of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the mixing drum of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the material feeding mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the hopper structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the scraping mechanism structure of the utility model;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the side tube of the utility model.

[0022] In the figure: 1. mixing drum; 2. feeding mechanism; 201. U-shaped frame; 202. hopper; 203. motor; 204. mixing shaft; 205. inner ring; 206. mixing rod; 207. sleeve; 208. outer ring; 209. connecting plate; 2010. supporting column; 2011. feeding pipe; 2012. ball bearing; 2013. sleeve plate; 3. scraping mechanism; 301. mounting ring; 302. side cylinder; 303. sleeve block; 304. scraper; 305. U-shaped round rod; 306. spring; 4. feeding port; 5. discharge pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, by Figure 1-2 The utility model comprises a mixing drum 1 , a discharge pipe 5 is fixedly installed at the bottom of the mixing drum 1 , and a feeding mechanism 2 and a scraping mechanism 3 are installed on the mixing drum 1 .

[0025] Specifically, by Figure 3-4It is given that the unloading mechanism 2 includes a U-shaped frame 201 fixed to the top of the mixing drum 1, a motor 203 is fixedly installed on the inner top wall of the U-shaped frame 201, a stirring shaft 204 is fixedly installed on the motor 203, a connecting plate 209 is fixedly sleeved on the outer side of the stirring shaft 204, a hopper 202 is fixedly installed on the outer side of the connecting plate 209, a unloading pipe 2011 is fixedly installed at the bottom of the hopper 202, the bottom end of the unloading pipe 2011 is in contact with the top of the mixing drum 1, two unloading ports 4 are symmetrically arranged on the top of the mixing drum 1, an inner ring 205 and an outer ring 208 are fixedly installed in the middle of the top of the mixing drum 1, the inner ring 205 is located on the inner side of the outer ring 208, the stirring shaft 204 is located on the inner side of the inner ring 205, and the two unloading ports 4 are both located in the inner The inner ring 205 and the outer ring 208 are connected to each other, and the feed pipe 2011 is located between the inner ring 205 and the outer ring 208. The outer side of the feed pipe 2011 is fixedly sleeved with a sleeve plate 2013 located above the inner ring 205 and the outer ring 208. Two support columns 2010 are symmetrically fixedly installed at the bottom of the sleeve plate 2013. The bottom ends of the two support columns 2010 are both installed with balls 2012. The two balls 2012 are respectively fitted with the inner ring 205 and the outer ring 208. The bottom end of the stirring shaft 204 extends to the inside of the mixing drum 1, and the stirring shaft 204 is rotatably connected to the mixing drum 1. The outer side of the stirring shaft 204 is fixedly sleeved with a sleeve 207 located in the mixing drum 1, and the outer side of the sleeve 207 is fixedly installed with stirring rods 206 at equal distances.

[0026] When in use, first put the raw materials into the hopper 202, then start the motor 203 to drive the stirring shaft 204 to rotate, and drive the hopper 202 to rotate through the connecting plate 209, and at the same time, the discharge pipe 2011 rotates between the inner ring 205 and the outer ring 208, and the two balls 2012 roll on the top of the inner ring 205 and the outer ring 208 respectively, to support the discharge pipe 2011, to ensure the stability of the hopper 202 and the discharge pipe 2011 during rotation, when the discharge pipe 2011 rotates to above the discharge port 4, the raw materials in the hopper 202 pass through the discharge pipe 2011 and the discharge port 4 into the mixing drum 1, to achieve the intermittent discharge of the raw materials, when the stirring shaft 204 rotates, it drives the sleeve 207 to rotate, and drives the stirring rod 206 to rotate to stir the raw materials, and finally the intermittent discharge of the raw materials is fully stirred.

[0027] Specifically, by Figure 5-6It is given that the scraper mechanism 3 includes two mounting rings 301 fixed to the outside of the stirring shaft 204, the two mounting rings 301 are both located inside the mixing drum 1, the two mounting rings 301 are respectively fixed to the two ends of the sleeve 207, the outsides of the two mounting rings 301 are fixedly mounted with side cylinders 302, the insides of the two side cylinders 302 are movably sleeved with the same U-shaped round rod 305, the outsides of the U-shaped round rod 305 are symmetrically and fixedly sleeved with two sleeve blocks 303, the side of the two sleeve blocks 303 away from the sleeve 207 is fixedly mounted with the same scraper 304, the scraper 304 is fitted with the inner wall of the mixing drum 1, and springs 306 are fixedly connected between the two mounting rings 301 and the U-shaped round rod 305, and the two springs 306 are respectively located inside the two side cylinders 302;

[0028] When in use, the two springs 306 are initially in a compressed state, and the scraper 304 fits tightly against the inner wall of the mixing drum 1 under the action of the elastic force of the two springs 306. When the motor 203 is started, the mixing shaft 204 is driven to rotate, and the two mounting rings 301 are driven to rotate, and then the U-shaped round rod 305 is driven to rotate through the two side tubes 302, and then the scraper 304 is driven to rotate through the two sleeve blocks 303, and finally the raw materials adhering to the inner wall of the mixing drum 1 are scraped off to avoid waste of raw materials and facilitate cleaning of the inside of the mixing drum 1.

Claims

1. A device for preparing silicone rubber for high voltage cables, comprising a mixing drum (1), characterized in that: A discharge pipe (5) is fixedly installed at the bottom of the mixing drum (1), and a material discharge mechanism (2) and a material scraping mechanism (3) are installed on the mixing drum (1); The material discharge mechanism (2) comprises a U-shaped frame (201) fixed to the top of the mixing drum (1); a motor (203) is fixedly mounted on the inner top wall of the U-shaped frame (201); a mixing shaft (204) is fixedly mounted on the motor (203); a connecting plate (209) is fixedly sleeved on the outer side of the mixing shaft (204); a hopper (202) is fixedly mounted on the outer side of the connecting plate (209); a material discharge pipe (2011) is fixedly mounted on the bottom of the hopper (202); and the bottom end of the material discharge pipe (2011) is connected to the mixing drum (1). The top of the mixing drum (1) is fitted, and two discharge ports (4) are symmetrically arranged on the top of the mixing drum (1). An inner ring (205) and an outer ring (208) are fixedly installed in the middle of the top of the mixing drum (1), the inner ring (205) is located on the inner side of the outer ring (208), the mixing shaft (204) is located on the inner side of the inner ring (205), the two discharge ports (4) are both located between the inner ring (205) and the outer ring (208), and the discharge pipe (2011) is located between the inner ring (205) and the outer ring (208).

2. The device for preparing silicone rubber for high voltage cable according to claim 1, characterized in that: The outer side of the discharge pipe (2011) is fixedly sleeved with a sleeve plate (2013) located above the inner ring (205) and the outer ring (208); two support columns (2010) are symmetrically fixedly installed at the bottom of the sleeve plate (2013); the bottom ends of the two support columns (2010) are both installed with balls (2012), and the two balls (2012) are respectively fitted with the inner ring (205) and the outer ring (208).

3. The device for preparing silicone rubber for high voltage cable according to claim 1, characterized in that: The bottom end of the stirring shaft (204) extends into the interior of the stirring drum (1), and the stirring shaft (204) is rotatably connected to the stirring drum (1). A sleeve (207) located in the stirring drum (1) is fixedly sleeved on the outside of the stirring shaft (204), and stirring rods (206) are fixedly installed at equal distances on the outside of the sleeve (207).

4. The device for preparing silicone rubber for high voltage cable according to claim 1, characterized in that: The scraper mechanism (3) comprises two mounting rings (301) fixed to the outside of the stirring shaft (204), the two mounting rings (301) are both located inside the stirring drum (1), the two mounting rings (301) are respectively fixed to the two ends of the sleeve (207), the outsides of the two mounting rings (301) are fixedly mounted with side tubes (302), the insides of the two side tubes (302) are movably sleeved with the same U-shaped round rod (305), the outsides of the U-shaped round rod (305) are symmetrically and fixedly sleeved with two sleeve blocks (303), the sides of the two sleeve blocks (303) away from the sleeve (207) are fixedly mounted with the same scraper (304), and the scraper (304) is in contact with the inner wall of the stirring drum (1).

5. The device for preparing silicone rubber for high voltage cable according to claim 4, characterized in that: A spring (306) is fixedly connected between the two mounting rings (301) and the U-shaped round rod (305), and the two springs (306) are respectively located inside the two side tubes (302).

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