Feeding device

Abstract

The utility model relates to a feeding device. The feeding device comprises two heating auger mechanisms; and the heating auger mechanism is arranged in the shell and extends to the outside of the shell. Through the arrangement of the breather pipe, the rotary sealing ring, the hollow auger shaft and the like, hot air generated by the hot air blower can enter the air cavity through the breather pipe and enter the hollow shaft from the side hole through the matching relation between the breather pipe and the rotary sealing ring, and the hollow auger shaft is driven to rotate. The whole hollow auger shaft is heated through the arrangement of the hollow auger shaft, the effect of conveying materials, namely feeding operation is achieved, the hollow auger shaft is heated through hot air in the process, then the effect of heating the materials making contact with the hollow auger shaft is achieved, the molten materials are kept in a molten state, and the feeding efficiency is improved. And the situation that the feeding difficulty is increased due to solidification and hardening of the low-temperature molten material is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of halogen-free low-smoke sheath material production technology, specifically to a feeding device. Background Technology

[0002] The production of halogen-free low-smoke sheath material requires multiple processes, including batching, mixing, internal mixing, conveying, feeding, extrusion, granulation, screening and packaging. The equipment used in the feeding step is called a feeder.

[0003] In the production process of halogen-free low-smoke sheathing material, the feeder conveys the material in the hopper to the inside of the screw extruder. However, most of the raw materials after internal mixing are in a molten state. Since the feeder is in an open state during the feeding process, when the ambient temperature of the feeder is low, some of the material is prone to solidify and harden, which increases the difficulty of the feeding operation. Therefore, a feeding device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] Based on the above description, this utility model provides a feeding device to solve the problem that the feeding operation becomes more difficult when the material agglomerates due to the drop in temperature.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a feeding device, comprising: two heating auger mechanisms;

[0006] The heating auger mechanism is located inside the housing and extends to the outside of the housing.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the heating auger mechanism includes a hollow auger shaft, which is disposed inside the housing and extends to the outside of the housing. Two adjacent hollow auger shafts are connected by a pulley and a conveyor belt, and one hollow auger shaft is connected to a motor by a pulley and a conveyor belt.

[0009] Furthermore, the hollow auger shaft includes a hollow shaft, and an auger plate and a side hole are provided on the circumferential surface of the hollow shaft. The auger plate is located inside the housing, and the side hole is located outside the housing.

[0010] Furthermore, the auger blade is provided with an air supply pipe extending to the outside of the hollow shaft. There is a first gap between the circumferential surface of the air supply pipe and the circumferential surface inside the hollow shaft, and multiple support blocks are provided between the two.

[0011] Furthermore, the multiple support blocks are distributed in a ring at equal intervals, and there is a second gap between two adjacent support blocks. A connecting cavity is provided between one end of the gas transmission pipe located inside the hollow shaft and the other end of the hollow shaft that is away from the side hole.

[0012] Furthermore, a vent pipe is fitted around the hollow shaft, and the vent pipe is located on one side of the outer surface of the housing.

[0013] Furthermore, the vent pipe includes a horizontal pipe, which is sleeved to the outside of the side hole. The inner wall of the horizontal pipe is provided with two sealing grooves, which are located on both sides of the side hole, and an air cavity is formed between the two sealing grooves.

[0014] Furthermore, a rotating sealing ring is provided inside the sealing groove, and the inner ring of the rotating sealing ring is in contact with the circumferential surface of the hollow shaft. A vertical pipe communicating with the air cavity is provided on the circumferential surface of the horizontal pipe, and the vertical pipe is connected to the hot air blower through a pipe.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. This utility model, by setting up components such as a vent pipe, a rotary sealing ring, and a hollow auger shaft, and through the cooperation between the vent pipe and the rotary sealing ring, allows the hot air generated by the hot air blower to enter the interior of the air chamber through the vent pipe, and the hot air enters the interior of the hollow shaft from the side hole to heat the entire hollow auger shaft;

[0017] 2. By setting up the hollow auger shaft, the material conveying effect is achieved, i.e., feeding operation. In this process, the hollow auger shaft is heated by hot air, thereby heating the material in contact with the hollow auger shaft. This effectively avoids the situation where the molten material solidifies and hardens due to low temperature, which would increase the difficulty of feeding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a feeding device provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the heating auger mechanism in an embodiment of the present invention;

[0020] Figure 3 for Figure 2 Structural sectional view;

[0021] Figure 4 for Figure 3 Another structural diagram from a different perspective;

[0022] Figure 5for Figure 2 Another perspective of the structural cross-section;

[0023] Figure 6 This is a schematic diagram of the hollow auger shaft in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the vent pipe in an embodiment of the present invention;

[0025] Figure 8 for Figure 7 Another structural diagram from a different perspective;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Housing; 2. Hollow auger shaft; 21. Hollow shaft; 22. Auger plate; 23. Side hole; 24. Gas supply pipe; 25. Connecting cavity; 26. Support block; 3. Vent pipe; 31. Horizontal pipe; 32. Sealing groove; 33. Vertical pipe; 4. Pulley; 5. Conveyor belt; 6. Motor; 7. Rotary sealing ring. Detailed Implementation

[0028] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be more thorough and complete.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0030] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0031] Please see Figure 1 A feeding device, comprising: two heating auger mechanisms;

[0032] The heating auger mechanism is located inside the housing 1 and extends to the outside of the housing 1;

[0033] The heating auger mechanism includes a hollow auger shaft 2, which is disposed inside the housing 1 and extends to the outside of the housing 1. Two adjacent hollow auger shafts 2 are connected by a pulley 4 and a conveyor belt 5. One hollow auger shaft 2 is connected to a motor 6 by a pulley 4 and a conveyor belt 5.

[0034] Based on the above, the motor 6 drives the hollow auger shaft 2 to rotate through the pulley 4 and the conveyor belt 5. During the rotation of the hollow auger shaft 2, the material can be conveyed to the next equipment, thus achieving the feeding operation.

[0035] like Figures 2-6 As shown, the hollow auger shaft 2 includes a hollow shaft 21. An auger plate 22 and a side hole 23 are provided on the circumferential surface of the hollow shaft 21. The auger plate 22 is located inside the housing 1, and the side hole 23 is located outside the housing 1. An air supply pipe 24 extending to the outside of the hollow shaft 21 is provided inside the auger plate 22. There is a first gap between the circumferential surface of the air supply pipe 24 and the circumferential surface inside the hollow shaft 21, and a plurality of support blocks 26 are provided between the two.

[0036] The multiple support blocks 26 are distributed in a ring at equal intervals, and there is a second gap between two adjacent support blocks 26. A connecting cavity 25 is provided between one end of the gas pipe 24 located inside the hollow shaft 21 and the other end of the hollow shaft 21 that is away from the side hole 23.

[0037] Based on the above, the side hole 23 allows the hot air input into the vent pipe 3 to flow into the hollow shaft 21 through the side hole 23, and the hot air can heat the hollow shaft 21, so that the auger plate 22 is also in a heated state. This prevents the material from clumping and increasing the difficulty of feeding when the device is feeding molten material.

[0038] The gas supply pipe 24 is designed to allow hot air to be discharged normally after heating the hollow shaft 21, and the support block 26 is designed to increase the stability of the gas supply pipe 24.

[0039] like Figure 4 , Figure 7 as well as Figure 8 As shown, a vent pipe 3 is sleeved on the outside of the hollow shaft 21, and the vent pipe 3 is disposed on one side of the outer surface of the housing 1;

[0040] The vent pipe 3 includes a horizontal pipe 31, which is sleeved onto the outside of the side hole 23. Two sealing grooves 32 are provided on the inner wall of the horizontal pipe 31. The two sealing grooves 32 are located on both sides of the side hole 23, and an air cavity is formed between the two sealing grooves 32. A rotating sealing ring 7 is provided inside the sealing groove 32. The inner ring of the rotating sealing ring 7 is in contact with the circumferential surface of the hollow shaft 21. A vertical pipe 33 is provided on the circumferential surface of the horizontal pipe 31 and communicates with the air cavity. The vertical pipe 33 is connected to the hot air blower through a pipe.

[0041] Based on the above, the vertical pipe 33 is connected to the hot air blower through the pipe, so that the hot air generated by the hot air blower can be input into the air chamber through the vertical pipe 33, and the hot air can enter the interior of the hollow shaft 21 through the side hole 23. The rotating sealing ring 7 here plays a sealing role to prevent the hot air from escaping.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feeding device, characterized in that, include: A heating auger mechanism consisting of two units; The heating auger mechanism is located inside the housing (1) and extends to the outside of the housing (1). The heating auger mechanism includes a hollow auger shaft (2), which includes a hollow shaft (21). The circumferential surface of the hollow shaft (21) is provided with auger plates (22) and side holes (23). The hollow shaft (21) is sleeved with a vent pipe (3). The vent pipe (3) includes a horizontal pipe (31). The horizontal pipe (31) is sleeved to the outside of the side holes (23). The inner wall of the horizontal pipe (31) is provided with two sealing grooves (32). The two sealing grooves (32) are located on both sides of the side holes (23), and an air cavity is formed between the two sealing grooves (32). The circumferential surface of the horizontal pipe (31) is provided with a vertical pipe (33) that communicates with the air cavity. The vertical pipe (33) is connected to the hot air blower through a pipe.

2. The feeding device according to claim 1, characterized in that, The hollow auger shaft (2) is located inside the housing (1) and extends to the outside of the housing (1). Two adjacent hollow auger shafts (2) are connected by a pulley (4) and a conveyor belt (5). One hollow auger shaft (2) is connected to a motor (6) by a pulley (4) and a conveyor belt (5).

3. The feeding device according to claim 2, characterized in that, The auger plate (22) is located inside the housing (1), and the side hole (23) is located outside the housing (1).

4. The feeding device according to claim 3, characterized in that, The auger plate (22) is provided with an air supply pipe (24) extending to the outside of the hollow shaft (21). There is a first gap between the circumferential surface of the air supply pipe (24) and the circumferential surface inside the hollow shaft (21), and multiple support blocks (26) are provided between them.

5. The feeding device according to claim 4, characterized in that, Multiple support blocks (26) are distributed in a ring at equal intervals, and there is a second gap between two adjacent support blocks (26). A connecting cavity (25) is provided between one end of the gas pipe (24) located inside the hollow shaft (21) and the other end of the hollow shaft (21) that is away from the side hole (23).

6. The feeding device according to claim 3, characterized in that, The vent pipe (3) is located on one side of the outer surface of the housing (1).

7. The feeding device according to claim 6, characterized in that, The sealing groove (32) is provided with a rotating sealing ring (7), and the inner ring of the rotating sealing ring (7) is in contact with the circumferential surface of the hollow shaft (21).

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