Vacuum mixer for cable insulation material

Abstract

The utility model provides a cable insulation material vacuum mixer which comprises a mixing box and a silane coupling agent adding pipe, a mixing motor is installed in the middle of the upper end of the mixing box, the shaft end of the mixing motor penetrates through the upper end of the mixing box to be in transmission connection with a mixing shaft, a plurality of supporting rods are installed on the annular side face of the mixing shaft, and spiral blades are installed among the supporting rods in a crossed mode. The left side and the right side of the mixing shaft are provided with two side scraping plates through a plurality of connecting plates, the right side of the upper end of the mixing box is provided with a vacuum pump, and the upper end of the left side of the mixing box is fixedly provided with a mounting seat and two fixing rings. According to the cable insulation material mixing device, the problems that a cable insulation material in a mixing box is difficult to add and the silane coupling agent is troublesome to add are solved, the cable insulation material in the mixing box can be uniformly mixed, the silane coupling agent can be added without opening the mixing box in the midway, vacuumizing is not needed again, and therefore the vacuum state in the mixing box cannot be influenced.

Description

Technical Field

[0001] The utility model relates to a cable insulation material vacuum mixer, belonging to the technical field of cable material mixing. Background Art

[0002] The cable outer sheath insulation layer is generally manufactured by mixing multiple materials such as polyethylene particles, silane cross-linking materials and silane coupling agents, and a mixer is required during the mixing process.

[0003] Publication No.: CN213966633U, mentions a semi-vacuum material accelerated mixing device, including a mixing box, a solid powder feeding port is arranged on the top of the mixing box, a screen is arranged below the solid powder feeding port, and a vibrator is arranged on the screen; a rubber feeding port is arranged on the left side of the upper part of the mixing box, and a solvent feeding port is arranged on the right side of the upper part of the mixing box; a stirring device is arranged at the bottom of the mixing box, and the stirring device includes a driving motor, the output end of the driving motor is connected to the stirring shaft, and the stirring shaft is provided with a spiral stirring blade, and the top of the stirring shaft is located below the screen, which can realize rapid and uniform mixing of various liquid materials and various solid materials, greatly improve production efficiency, and have a good material mixing effect, ensuring production quality, but the width of the spiral stirring blade in the device is limited, and the material on the inner edge of the mixing box cannot be stirred. At the same time, the silane coupling agent is added in the middle of the mixing, and the sealing cover of the mixing box is opened when adding, which causes the mixing box to be unable to always maintain a vacuum state. After adding the silane coupling agent, it is necessary to re-vacuum, which delays work efficiency. Now a cable insulation material vacuum mixer is urgently needed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a cable insulation material vacuum mixer to solve the problems raised in the above-mentioned background technology. The utility model can evenly mix the cable insulation materials in the mixing box. When adding silane coupling agent in the middle, it can be added without opening the mixing box, and there is no need to re-draw the vacuum, so it will not affect the vacuum state in the mixing box.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a cable insulation material vacuum mixer, comprising a mixing box, a sealing cylinder and a silane coupling agent adding tube, a mixing motor is installed in the middle of the upper end of the mixing box, the shaft end of the mixing motor passes through the upper end of the mixing box and is transmission-connected with the mixing shaft, a plurality of support rods are installed on the annular side of the mixing shaft, spiral blades are cross-installed between the plurality of support rods, two side scrapers are installed on the left and right sides of the mixing shaft through a plurality of connecting plates, a vacuum pump is installed on the right side of the upper end of the mixing box, a mounting seat and two fixing rings are fixed on the upper left end of the mixing box, a pneumatic push rod is installed on the upper end of the mounting seat, a piston head is installed on the movable end of the pneumatic push rod, a sealing cylinder is fixed through and between the two fixing rings, an adding tube is installed on the left end of the sealing cylinder, the upper end of the sealing cylinder is sealingly connected to the silane coupling agent adding tube through a sealing cover, the other end of the silane coupling agent adding tube is connected to the inside of the mixing box, and a control valve is installed on the annular side of the silane coupling agent adding tube.

[0006] Furthermore, a base is installed at the lower end of the mixing box, a discharge pipe is installed at the lower side of the left end of the mixing box, and a discharge valve is installed at the discharge pipe.

[0007] Furthermore, an insulating material inlet pipe is installed on the left side of the upper end of the mixing box, and a feed valve is installed at the insulating material inlet pipe, and the two side scrapers are respectively slidably attached to the left and right ends of the inner wall of the mixing box.

[0008] Furthermore, a valve is installed on the annular side surface of the addition pipe.

[0009] Furthermore, the vacuum pump is connected to the interior of the mixing box through a vacuum pipe.

[0010] Furthermore, the piston head is slidably located in the sealing cylinder.

[0011] The beneficial effects of the utility model: the utility model is a cable insulation material vacuum mixer, because the utility model adds a mixing motor, a mixing shaft, a support rod, a spiral blade, a side scraper, a connecting plate, a sealing cylinder, a pneumatic push rod, a piston head, a silane coupling agent adding tube and a control valve, our design improvement and actual use show that the device can evenly mix the cable insulation material in the mixing box, when adding the silane coupling agent in the middle, there is no need to open the mixing box to achieve the addition, and there is no need to re-draw the vacuum, so it will not affect the vacuum state in the mixing box, and the operation is simple, which is convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1This is a three-dimensional schematic diagram of the overall structure of a cable insulation material vacuum mixer according to the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of a cable insulation material vacuum mixer of the utility model;

[0015] Figure 3 It is an enlarged schematic diagram of a sealing cylinder of a cable insulation material vacuum mixer of the utility model;

[0016] In the figure: 1-base, 2-mixing box, 3-mixing motor, 4-mixing shaft, 5-support rod, 6-spiral blade, 7-side scraper, 8-connecting plate, 9-vacuum pump, 10-vacuum tube, 11-sealing cylinder, 12-mounting seat, 13-pneumatic push rod, 14-piston head, 15-fixing ring, 16-addition tube, 17-silane coupling agent addition tube, 18-control valve. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: a cable insulation material vacuum mixer, including a mixing box 2, a sealing cylinder 11 and a silane coupling agent adding tube 17, a mixing motor 3 is installed in the middle of the upper end of the mixing box 2, the shaft end of the mixing motor 3 passes through the upper end of the mixing box 2 and is connected to the mixing shaft 4 for transmission, a plurality of support rods 5 are installed on the annular side of the mixing shaft 4, a plurality of spiral blades 6 are cross-installed between the support rods 5, two side scrapers 7 are installed on the left and right sides of the mixing shaft 4 through a plurality of connecting plates 8, a vacuum pump 9 is installed on the right side of the upper end of the mixing box 2, a mounting seat 12 and two fixing rings 15 are fixed on the upper left end of the mixing box 2, and the mounting seat A pneumatic push rod 13 is installed at the upper end of 12, and a piston head 14 is installed at the movable end of the pneumatic push rod 13. A sealing cylinder 11 is fixed between the two fixing rings 15, and an adding tube 16 is installed at the left end of the sealing cylinder 11. The upper end of the sealing cylinder 11 is sealed and connected with a silane coupling agent adding tube 17 through a sealing cover. The other end of the silane coupling agent adding tube 17 is connected to the inside of the mixing box 2. A control valve 18 is installed on the annular side of the silane coupling agent adding tube 17. This design solves the problems that the width of the spiral stirring blade in the original device is limited, the material on the inner edge of the mixing box cannot be stirred, and the addition of silane coupling agent is more troublesome.

[0019] As the first embodiment of the utility model: a base 1 is installed at the lower end of the mixing box 2, a discharge pipe is installed on the lower side of the left end of the mixing box 2, and a discharge valve is installed at the discharge pipe, an insulating material inlet pipe is installed on the left side of the upper end of the mixing box 2, and a feed valve is installed at the insulating material inlet pipe, two side scrapers 7 are respectively slidably attached to the left and right ends of the inner wall of the mixing box 2, and the opening and closing of the insulating material inlet pipe and the discharge pipe can be controlled by the added feed valve and discharge valve.

[0020] A valve is installed on the annular side of the adding pipe 16, and the staff can add silane coupling agent to the sealing tube 11 through the adding pipe 16. The vacuum pump 9 is connected to the inside of the mixing box 2 through the vacuum pipe 10, and the air in the mixing box 2 can be pumped out through the vacuum pipe 10. The piston head 14 is slidably located in the sealing tube 11, and when the piston head 14 is pushed upward, the silane coupling agent in the sealing tube 11 can be pushed out.

[0021] As a second embodiment of the present utility model: when the device is actually used, the feed valve is opened, and different cable insulating materials are added to the mixing box 2 through the insulating material inlet pipe, then the feed valve is closed, and the vacuum pump 9 is started, so that the vacuum pump 9 extracts the air in the mixing box 2 through the vacuum tube 10, so that a vacuum state is formed in the mixing box 2, and then the mixing motor 3 is started, and the mixing motor 3 can mobilize the mixing shaft 4 to rotate, forcing multiple support rods 5, two spiral blades 6 and two side scrapers 7 to be driven to rotate, so that the different cable insulating materials added to the mixing box 2 can be stirred and mixed. In this process, the control valve 18 is opened, and the pneumatic push rod 13 is started. The pneumatic push rod 13 can drive the piston head 14 to move up in the sealing tube 11, and then the silane coupling agent in the sealing tube 11 can be added to the mixing box 2 through the silane coupling agent adding tube 17 for mixing, until the silane coupling agent in the sealing tube 11 is completely pushed out, and then the control valve 18 is closed.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cable insulation material vacuum mixer, comprising a mixing box (2), a sealing cylinder (11) and a silane coupling agent adding tube (17), characterized in that: A mixing motor (3) is installed in the middle of the upper end of the mixing box (2); the shaft end of the mixing motor (3) passes through the upper end of the mixing box (2) and is transmission-connected to a mixing shaft (4); a plurality of support rods (5) are installed on the annular side surface of the mixing shaft (4); spiral blades (6) are cross-mounted between the plurality of support rods (5); and two side scrapers (7) are installed on the left and right sides of the mixing shaft (4) via a plurality of connecting plates (8); A vacuum pump (9) is installed on the right side of the upper end of the mixing box (2); a mounting seat (12) and two fixing rings (15) are fixed on the upper left end of the mixing box (2); a pneumatic push rod (13) is installed on the upper end of the mounting seat (12); a piston head (14) is installed on the movable end of the pneumatic push rod (13); a sealing cylinder (11) is fixedly passed through between the two fixing rings (15); an addition pipe (16) is installed on the left end of the sealing cylinder (11); the upper end of the sealing cylinder (11) is sealedly connected to a silane coupling agent addition pipe (17) through a sealing cover; the other end of the silane coupling agent addition pipe (17) is connected to the inside of the mixing box (2); and a control valve (18) is installed on the annular side of the silane coupling agent addition pipe (17).

2. A cable insulation material vacuum mixer according to claim 1, characterized in that: A base (1) is installed at the lower end of the mixing box (2), a discharge pipe is installed at the lower left end of the mixing box (2), and a discharge valve is installed at the discharge pipe.

3. A cable insulation material vacuum mixer according to claim 1, characterized in that: An insulating material inlet pipe is installed on the left side of the upper end of the mixing box (2), and a feed valve is installed at the insulating material inlet pipe. The two side scrapers (7) are respectively slidably attached to the left and right ends of the inner wall of the mixing box (2).

4. A cable insulation material vacuum mixer according to claim 1, characterized in that: A valve is installed on the annular side of the adding pipe (16).

5. The cable insulation material vacuum mixer according to claim 1, characterized in that: The vacuum pump (9) is connected to the interior of the mixing box (2) via a vacuum pipe (10).

6. A cable insulation material vacuum mixer according to claim 1, characterized in that: The piston head (14) is slidably located in the sealing cylinder (11).

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