Auxiliary device used before preparation of low-smoke flame-retardant insulating material

Abstract

The utility model relates to the field of insulating material preparation, in particular to an auxiliary device used before low-smoke flame-retardant insulating material preparation. The automatic feeding device comprises a machine base, a placement frame, a charging box and a feeding device, the feeding device comprises a rack, a conveying belt, a discharging sliding way and two transmission wheels. A partition plate is vertically arranged in the charging box, and the partition plate divides the containing space in the charging box into a powder cavity and an auxiliary cavity. A quantitative discharging barrel is arranged at the bottom of the charging box; a driving assembly is arranged in the quantitative discharging barrel; a quantitative liquid outlet cylinder is arranged at the bottom of the charging box, and a control valve is arranged at the liquid outlet end of the quantitative liquid outlet cylinder; and guide-out plates are respectively arranged under the quantitative discharging barrel and the quantitative liquid discharging barrel. The utility model aims to provide the auxiliary device before preparation of the low-smoke flame-retardant insulating material, and solves the problems that powder and auxiliaries cannot be uniformly fed into a mixing device by an existing feeding device, and the powder and the auxiliaries are prevented from being mixed and adhered to a feeding hopper before entering the mixing device.

Description

Technical Field

[0001] The utility model relates to the field of insulating material preparation, in particular to a pre-preparation auxiliary device for low-smoke flame-retardant insulating material. Background Art

[0002] The quality of insulating material performance directly affects the quality, processing efficiency, and application scope of wires and cables. Its preparation usually requires mixing and stirring various raw materials according to the formula ratio, and through process steps such as hot mixing, extrusion, and pelletizing. During the mixing and stirring of the raw materials, stabilizers, plasticizers, flame retardants, lubricants and other additives need to be put into the mixing device for mixing with PVC powder. However, during the feeding process, the powder and the additives are put into the feeding device at the same time, which is easy to mix in the feeding hopper and stick to the inner wall of the feeding hopper; if the powder and the additives are added to the mixing device in batches, the feeding is prone to uneven feeding.

[0003] Therefore, how to design a preparation auxiliary device that can evenly feed powder and additives into a mixing device to prevent the powder and additives from mixing and sticking to a feeding device before entering the mixing device is a technical problem that needs to be solved. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a low-smoke flame-retardant insulating material pre-production auxiliary device, which solves the problem that the existing feeding device cannot evenly feed powder and additives into the mixing device, avoiding the powder and additives from mixing and sticking to the feeding hopper before entering the mixing device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a machine base, a mounting frame arranged at one end of the machine base, a loading box installed on the mounting frame, and a feeding device installed on the machine base; the feeding device includes a frame, a conveyor belt, a discharging chute and two transmission wheels; the bottom of the frame is installed on the top surface of the machine base by bolts, the two transmission wheels are rotatably arranged at the two ends of the frame, the conveyor belt is movably arranged on the outer peripheral walls of the two transmission wheels, a plurality of loading hoppers are fixedly arranged in parallel on the conveyor belt, the discharging chute is installed on the top of the frame by bolts, and a cavity for the loading hopper to pass through is opened on the machine base; a partition is vertically arranged in the loading box, and the partition emptys the contents of the loading box The invention relates to a powder chamber and an auxiliary agent chamber; a quantitative discharging cylinder connected to the powder chamber is provided at the bottom of the charging box; a driving assembly is provided in the quantitative discharging cylinder; the driving assembly comprises a driving motor, a rotating shaft and a plurality of rotating plates, one end of the rotating shaft is rotatably connected to the bottom plate of the charging box, and the other end passes through the quantitative discharging cylinder and extends to the outside of the quantitative discharging cylinder and the end is connected to the driving end of the driving motor; the rotating plate is fixedly arranged on the outer peripheral wall of the rotating shaft, and a second discharge port is also provided at the bottom of the quantitative discharging cylinder; a quantitative liquid discharging cylinder connected to the auxiliary agent chamber is provided at the bottom of the charging box, and a control valve is provided at the liquid discharge end of the quantitative liquid discharging cylinder; a guide plate is respectively provided directly below the quantitative discharging cylinder and the quantitative liquid discharging cylinder.

[0006] Furthermore, the number of the rotating plates is at least 4, and the distances between adjacent rotating plates are the same.

[0007] Furthermore, a discharge port 1 connected to the quantitative discharge barrel is provided at the bottom of the powder chamber; and a discharge hopper connected to the discharge port 1 is provided in the powder chamber.

[0008] Furthermore, the export plate is inclined at 45 degrees toward the frame, and baffles are provided on both sides of the export plate.

[0009] The utility model has the following beneficial effects:

[0010] 1. The utility model makes the quantitative discharging cylinder and the quantitative liquid discharging cylinder work alternately, so that the auxiliary agent and the powder alternately fall on the lead-out plate, alternately enter the charging hopper, and are transported upward, and the powder and the auxiliary agent are alternately and evenly added into the mixing device, thereby avoiding the problem of uneven feeding and sticking to the charging hopper before being added to the mixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the utility model;

[0012] Figure 2 It is a partial cross-sectional schematic diagram of the schematic diagram of the utility model;

[0013] Figure 3 It is a schematic cross-sectional view of the charging box of the utility model;

[0014] Figure 4 This is a schematic diagram of the quantitative discharging barrel of the utility model;

[0015] Figure 5 This is a schematic diagram of the export board.

[0016] Description of reference numerals:

[0017] 1- base, 11- cavity;

[0018] 2-Placement rack;

[0019] 3-charging box, 31-partition plate, 32-powder chamber, 321-discharging port 1, 322-discharging hopper, 33-auxiliary agent chamber, 34-quantitative discharging cylinder, 341-driving motor, 342-rotating shaft, 343-rotating plate, 344-discharging port 2, 35-quantitative liquid discharging cylinder, 351-control valve, 36-export plate;

[0020] 4-feeding device, 41-frame, 42-conveying belt, 421-loading hopper, 43-discharging slideway, 44-driving wheel. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] join Figure 1-5 As shown, the scheme includes a machine base 1, a mounting frame 2 arranged at one end of the machine base 1, a loading box 3 installed on the mounting frame 2, and a feeding device 4 installed on the machine base 1;

[0023] The feeding device 4 includes a frame 41, a conveyor belt 42, a discharge chute 43 and two transmission wheels 44; the bottom of the frame 41 is installed on the top surface of the base 1 by bolts, and the two transmission wheels 44 are rotatably arranged at the two ends of the frame 41, and the conveyor belt 42 is movably arranged on the outer peripheral walls of the two transmission wheels 44. A plurality of loading hoppers 421 are fixedly arranged in parallel on the conveyor belt 42, and the discharge chute 43 is installed on the top of the frame 41 by bolts. A cavity 11 for the loading hopper 421 to pass through is opened on the base 1; the transmission wheel 44 is driven to rotate by an external power supply, and its driving method is public and achievable for those skilled in the art, and will not be elaborated here.

[0024] A partition 31 is vertically arranged in the charging box 3, and the partition 31 divides the storage space in the charging box 3 into a powder chamber 32 and an auxiliary agent chamber 33; a quantitative discharge barrel 34 connected to the powder chamber 32 is arranged at the bottom of the charging box 3; a driving assembly is arranged in the quantitative discharge barrel 34; the driving assembly includes a driving motor 341, a rotating shaft 342 and a plurality of rotating plates 343, one end of the rotating shaft 342 is rotatably connected to the bottom plate of the charging box 3, and the other end passes through the quantitative discharge barrel 34 It extends to the outside of the quantitative discharge cylinder 34 and the end is connected to the driving end of the driving motor 341; the rotating plate 343 is fixedly arranged on the outer peripheral wall of the rotating shaft 342, and the bottom of the quantitative discharge cylinder 34 is also provided with a second discharge port; the bottom of the loading box 3 is provided with a quantitative liquid discharge cylinder 35 connected to the auxiliary agent chamber 33, and the liquid outlet end of the quantitative liquid discharge cylinder 35 is provided with a control valve 351; the quantitative discharge cylinder 34 and the quantitative liquid discharge cylinder 35 are respectively provided with a lead-out plate 36 directly below.

[0025] The minimum number of the rotating plates 343 is 4, and the distances between adjacent rotating plates 343 are the same.

[0026] A discharge port 321 connected to the quantitative discharge barrel 34 is provided at the bottom of the powder chamber 32; a discharge hopper 322 connected to the discharge port 321 is provided in the powder chamber 32 to prevent powder from accumulating at the bottom of the powder chamber 32 and being unable to be discharged.

[0027] The export plate 36 is inclined at 45 degrees toward the frame 41 , and baffles 361 are provided on both sides of the export plate 36 to reduce the additives and powder from falling to the outside from both sides of the export plate 36 and to increase the export stability.

[0028] The working principle is roughly as follows:

[0029] The transmission wheel 44 drives the conveyor belt 42 to drive through the external power supply, and drives the loading hopper 421 to move upward, and at the same time, the powder and the auxiliary agent are respectively placed in the powder chamber 32 and the auxiliary agent chamber 33, and the powder passes through the discharge hopper 322 and enters between the adjacent rotating plates 343 in the quantitative discharge cylinder 34. The driving motor 341 drives the rotating shaft 342 to drive the rotating plate 343 to rotate regularly so that the powder is transferred to the top of the discharge port 2, and falls downward out of the quantitative discharge cylinder 34 and falls on the output plate 36. The powder is discharged along the output plate 3 6 slides into the charging hopper 421 and is transported upward by the charging hopper 421; the auxiliary agent falls on the outlet plate 36 through the control valve 351, and the auxiliary agent slides into the charging hopper 421 along the outlet plate 36; the quantitative discharge cylinder 34 and the quantitative liquid discharge cylinder 35 work alternately, so that the powder in the powder chamber 32 and the auxiliary agent in the auxiliary agent chamber 33 alternately fall to the outlet plate 36 and slide along the outlet plate 36 to the charging hopper 421; finally, it is transported from the charging hopper 421 to the top of the frame 41 and transported to the mixing device along the discharge chute 43.

[0030] The above description is only a specific implementation method of the utility model, and does not limit the patent scope of the utility model. Any equivalent structural transformation made using the contents of the utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A low-smoke flame-retardant insulating material pre-production auxiliary device, characterized in that: It comprises a machine base (1), a mounting frame (2) arranged at one end of the machine base (1), a loading box (3) mounted on the mounting frame (2), and a feeding device (4) mounted on the machine base (1); The feeding device (4) comprises a frame (41), a conveyor belt (42), a discharge chute (43) and two transmission wheels (44); the bottom of the frame (41) is bolted to the top surface of the base (1); the two transmission wheels (44) are rotatably arranged at two ends of the frame (41); the conveyor belt (42) is movably arranged on the outer peripheral walls of the two transmission wheels (44); a plurality of loading hoppers (421) are fixedly arranged in parallel on the conveyor belt (42); the discharge chute (43) is bolted to the top of the frame (41); and a cavity (11) for the loading hopper (421) to pass through is opened on the base (1); A partition (31) is vertically arranged in the charging box (3), and the partition (31) divides the storage space in the charging box (3) into a powder chamber (32) and an auxiliary agent chamber (33); a quantitative discharge barrel (34) connected to the powder chamber (32) is arranged at the bottom of the charging box (3); a driving assembly is arranged in the quantitative discharge barrel (34); the driving assembly comprises a driving motor (341), a rotating shaft (342) and a plurality of rotating plates (343); one end of the rotating shaft (342) is rotatably connected to the bottom plate of the charging box (3), and the other end passes through the quantitative discharge barrel (341). 4) extends outside the quantitative discharging cylinder (34) and the end portion is connected to the driving end of the driving motor (341); the rotating plate (343) is fixedly arranged on the outer peripheral wall of the rotating shaft (342), and the bottom of the quantitative discharging cylinder (34) is also provided with a second discharge port (344); the bottom of the charging box (3) is provided with a quantitative liquid discharge cylinder (35) connected to the auxiliary agent chamber (33), and the liquid outlet end of the quantitative liquid discharge cylinder (35) is provided with a control valve (351); and the quantitative discharging cylinder (34) and the quantitative liquid discharge cylinder (35) are respectively provided with a guide plate (36) directly below.

2. The low-smoke flame-retardant insulating material pre-production auxiliary device according to claim 1, characterized in that: The number of the rotating plates (343) is at least 4, and the distances between adjacent rotating plates (343) are the same.

3. The low-smoke flame-retardant insulating material pre-production auxiliary device according to claim 1, characterized in that: A discharge port (321) communicating with a quantitative discharge cylinder (34) is provided at the bottom of the powder chamber (32); a discharge hopper (322) communicating with the discharge port (321) is provided in the powder chamber (32).

4. The low-smoke flame-retardant insulating material pre-production auxiliary device according to claim 1, characterized in that: The export plate (36) is inclined at 45 degrees toward the frame (41), and baffles (361) are provided on both sides of the export plate (36).

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