Feeding mechanism for conveying plastic particles

Abstract

The utility model belongs to the field of plastic processing, and particularly relates to a feeding mechanism for conveying plastic particles, which comprises a hopper, a feeding end seat is mounted at the bottom of the hopper, the output end of the feeding end seat is connected with a conveying pipe inclined upwards, and a blanking end seat with a downward opening is mounted on the outer wall of the conveying pipe. The conveying mechanism comprises a motor installed at the other end of the conveying pipe, a rotating shaft is installed at the output end of the motor, and the outer wall of the rotating shaft is sleeved with a spiral auger. When plastic particles are processed, due to the fact that the temperature of the conveying pipe and the rotating shaft rises, the pipe sealing mechanism works, an air supply channel formed by the air supply end base and an opening of the conveying pipe is adjusted to be in an open state, air is conveyed to the conveying pipe through the air supply mechanism, and due to the fact that gaps are reserved among the plastic particles, the air can be normally conveyed, and the conveying pipe and the rotating shaft are assisted in cooling. And blockage caused by hot melt adhesion of the plastic particles is prevented, and stable conveying of the plastic particles under long-time feeding is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic processing, concretely relates to a kind of feeding mechanism for plastic particle conveying. BACKGROUND

[0002] Plastic particle refers to the raw material that plastic is stored, transported and processed in semi-finished product form. Plastic is a kind of polymer material, which can be made of ethylene, propylene, chloroethylene, styrene and other substances by using petroleum as raw material. The molecules of these substances can react with each other under certain conditions to form compounds with very large molecular weight, i.e. polymers. Plastic particles are the state of these polymer materials before processing, usually in the form of particles for easy handling and transportation.

[0003] When feeding in plastic processing, plastic particles are transported by spiral auger. Due to the friction between spiral auger and pipe wall and the heat generated by rotating shaft, the temperature in the inner cavity of conveying pipe rises, which easily causes thermal fusion of some plastic particles attached to rotating shaft and pipe wall. With the increase of feeding time, the thermal fusion phenomenon of conveying pipe is aggravated, which leads to blockage of conveying. There are some deficiencies. CONTENT OF THE UTILITY MODEL

[0004] (I) OBJECT OF THE UTILITY MODEL

[0005] To solve the technical problems in the background art, the utility model provides a kind of feeding mechanism for plastic particle conveying, which has the characteristics of air cooling during conveying process to prevent thermal fusion of plastic particles caused by heat.

[0006] (II) TECHNICAL SCHEME

[0007] To solve the above technical problems, the utility model provides a kind of feeding mechanism for plastic particle conveying, which includes a hopper. The bottom of the hopper is provided with a feeding end seat. The output end of the feeding end seat is connected with an upwardly inclined conveying pipe. The outer wall of the conveying pipe is provided with a downwardly opening discharging end seat.

[0008] The conveying mechanism includes a motor installed at the other end of the conveying pipe. The output end of the motor is provided with a rotating shaft. The outer wall of the rotating shaft is provided with a spiral auger.

[0009] The opening of the conveying pipe is provided with a boss. The pipe sealing mechanism includes a partition plate installed inside the boss. Adjacent two partition plates are spaced apart and provided with sealing plates. A pneumatic cylinder is clamped between the two sealing plates. The output end of the pneumatic cylinder is provided with a piston rod. The other end of the piston rod is connected with a pipe plug matched with the opening of the conveying pipe.

[0010] The air supply mechanism includes an air supply device arranged on the other side of the partition plate. The upper part of the air supply device is provided with an air inlet end seat for air inlet. The bottom is provided with an air supply end seat facing the opening of the conveying pipe.

[0011] Preferably, the screw auger rotates synchronously with the rotating shaft, and the plastic particle transmission direction is from bottom to top.

[0012] Preferably, the lower part of the pipe plug is matched with the opening of the conveying pipe, and the upper part of the pipe plug is matched with the sealing plate.

[0013] Preferably, the lower part of the pipe plug is matched with the opening of the conveying pipe, and the upper part of the pipe plug is matched with the sealing plate.

[0014] Preferably, the lower part of the pipe plug is matched with the opening of the conveying pipe, and the upper part of the pipe plug is matched with the sealing plate.

[0015] Preferably, the lower part of the pipe plug is matched with the opening of the conveying pipe, and the upper part of the pipe plug is matched with the sealing plate.

[0016] The above technical scheme of the utility model has the following beneficial technical effects: when the plastic particles are processed, the temperature of the conveying pipe and the rotating shaft rises, at this time, the sealing pipe mechanism works, the air supply channel composed of the air supply end base and the opening of the conveying pipe is adjusted to the open state, the air supply mechanism supplies air to the conveying pipe, the air can be normally transmitted due to the gap between the plastic particles, the air supply mechanism helps to cool the conveying pipe and the rotating shaft, prevents the plastic particles from being fused and adhered to cause blockage, and keeps the stable conveying of the plastic particles for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a sectional structure schematic diagram of the utility model;

[0019] Figure 3 It is a sealing pipe mechanism structure schematic diagram of the utility model;

[0020] Figure 4 It is a structure schematic diagram of the air supply mechanism of the utility model.

[0021] REFERENCE SIGNS:

[0022] 1, hopper; 2, feeding end base; 3, conveying pipe; 4, discharging end base; 51, motor; 52, rotating shaft; 53, screw auger; 6, boss; 71, partition plate; 72, sealing plate; 73, air cylinder; 74, piston rod; 75, pipe plug; 81, air supply device; 82, air guide end base; 83, air supply end base. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the present application clearer and more comprehensible, the present application will be further described in detail below with reference to the specific embodiments and the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0024] As shown in Figures 1-4 The utility model provides a kind of feeding mechanism for plastic particle conveying, including hopper 1, the bottom of hopper 1 is equipped with feeding end seat 2, the output end of feeding end seat 2 is connected with the upwardly inclined conveying pipe 3, the outer wall of conveying pipe 3 is equipped with the downwardly open blanking end seat 4;

[0025] Conveying mechanism includes motor 51 installed in the other end of conveying pipe 3, the output end of motor 51 is equipped with rotating shaft 52, the outer wall of rotating shaft 52 is equipped with helical spiral auger 53;

[0026] The opening of conveying pipe 3 is provided with boss 6, pipe sealing mechanism includes partition 71 installed in boss 6, adjacent two partition 71 are equipped with sealing plate 72 between interval, two sealing plates 72 are clamped with cylinder 73, the output end of cylinder 73 is equipped with piston rod 74, the other end of piston rod 74 is connected with the pipe plug piece 75 matched with the opening of conveying pipe 3;

[0027] Air supply mechanism includes air supply device 81 arranged in the other side of partition 71, and the bottom is provided with air supply end seat 83 towards the opening of conveying pipe 3, for the air inlet of air supply device 81 upper portion is provided with air guide end seat 82.

[0028] It should be noted that: spiral auger 53 rotates synchronously with rotating shaft 52, and the direction of plastic particle transmission is from bottom to top;Motor 51 drives the rotating shaft 52 of output end to rotate, drives spiral auger 53 to rotate in conveying pipe 3, and the plastic particles transmitted to conveying pipe 3 by feeding end seat 2 are lifted and conveyed from bottom to top, until moving to blanking end seat 4 into external plastic processing equipment.

[0029] In the embodiment, when the plastic particles are processed, the temperature of the conveying pipe 3 and the rotating shaft 52 rises, at this time, the pipe sealing mechanism works, the cylinder 73 drives the piston rod 74 to retract, the pipe plug 75 sealing the opening of the conveying pipe 3 is lifted upwards along the partition plate 71, because the lower end face of the partition plate 71 facing the opening of the conveying pipe 3 is a through structure, two air supply devices 81 are arranged, the air supply end seat 83 and the opening of the conveying pipe 3 form an air supply channel, the through structure at the lower part of the partition plate 71 conducts the gas, the external gas is sucked in through the air suction end seat 82, and is input into the conveying pipe 3 through the air supply channel at the air supply end seat 83, because the gap is left between the plastic particles, the gas can be normally transmitted, the conveying pipe 3 and the rotating shaft 52 are cooled, the plastic particles are prevented from being hotly fused and adhered to the conveying pipe 3 and the rotating shaft 52 to cause blockage, and the stable conveying of the plastic particles is maintained for a long time.

[0030] It can be understood that the lower part of the pipe plug 75 is matched with the opening size of the conveying pipe 3, and the upper part of the pipe plug 75 is the same as the sealing plate 72; the pipe plug 75 moves between the two partition plates 71 along with the movement of the piston rod 74, and because the upper part is the same as the sealing plate 72, the sealing separation of the upper part of the air supply channel can be maintained.

[0031] In an embodiment, the through structure at the lower part of the partition plate 71 is provided with a filter screen structure with air holes, and the size of the air holes is smaller than the size of the plastic particles, which prevents the plastic particles from entering the air supply channel to cause blockage, and on the other hand, the dust impurities in the inhaled gas are prevented from being conveyed into the conveying pipe 3.

[0032] It should be understood that the above specific embodiments of the utility model are only used for example or explanation of the principle of the utility model, and do not constitute the limitation of the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without deviating from the spirit and scope of the utility model shall be included in the protection scope of the utility model. In addition, the appended claims of the utility model are intended to cover all changes and modifications falling into the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A feeding mechanism for plastic particle conveying, characterized by comprising: Including hopper (1), the bottom of hopper (1) is provided with feeding end seat (2), the output end of feeding end seat (2) is connected with upwardly inclined conveying pipe (3), the outer wall of conveying pipe (3) is provided with downwardly opening discharging end seat (4); The conveying mechanism includes a motor (51) mounted on the other end of the conveying pipe (3), and the output end of the motor (51) is provided with a rotating shaft (52), and the outer wall of the rotating shaft (52) is sleeved with a spiral screw auger (53); The opening of the conveying pipe (3) is provided with a boss (6), and the pipe sealing mechanism includes a partition plate (71) mounted in the boss (6), and a sealing plate (72) is mounted between two adjacent partition plates (71), and a gas cylinder (73) is clamped between two sealing plates (72), the output end of the gas cylinder (73) is provided with a piston rod (74), and the other end of the piston rod (74) is connected with a pipe plug (75) matched with the opening of the conveying pipe (3); The air supply mechanism includes an air supply device (81) arranged on the other side of the partition plate (71), and the upper portion of the air supply device (81) is provided with an air inlet end seat (82) for air inlet, and the bottom is provided with an air supply end seat (83) facing the opening of the conveying pipe (3).

2. The plastic particle feeding mechanism according to claim 1, wherein The screw auger (53) rotates synchronously with the rotating shaft (52), and the direction of plastic particle transmission is from bottom to top.

3. The plastic particle feeding mechanism according to claim 1, wherein The lower portion of the pipe plug (75) is matched with the opening size of the conveying pipe (3), and the upper portion of the pipe plug (75) is matched with the sealing plate (72).

4. The plastic particle feeding mechanism according to claim 1, wherein The lower end surface of the partition plate (71) facing the opening of the conveying pipe (3) is a through structure.

5. The plastic particle feeding mechanism according to claim 4, wherein The through structure of the lower portion of the partition plate (71) is provided with a filter screen structure with air holes, and the size of the air holes is smaller than the size of the plastic particles.

6. The plastic particle feeding mechanism according to claim 1, wherein The air supply device (81) is provided with at least one, and the air supply end seat (83) and the opening of the conveying pipe (3) form an air supply channel.

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