Discharging structure of polyethylene material production line

Abstract

The utility model discloses a discharging structure of a polyethylene material production line, which relates to the technical field of polyethylene production, and comprises a first discharging pipe, a second discharging pipe and a valve, the first discharging pipe is hermetically connected with the second discharging pipe through a sealing butt joint mechanism, one end of the second discharging pipe is fixedly provided with a second flange, and the other end of the second discharging pipe is fixedly provided with a third flange. A first flange is connected to one side of the second flange in an attached mode, and the first flange and the second flange are connected in a positioning mode through a butt joint positioning mechanism. The discharging structure of the polyethylene material production line is provided with the first discharging pipe, the second discharging pipe and the sealing butt joint mechanism, so that in the welding and splicing process of the first discharging pipe and the second discharging pipe, the arrangement of a welding groove is matched with an argon electric connection welding mode, the welding flatness and sealing performance are guaranteed, and the welding quality is improved. And the inner ring of the joint of the first discharge pipe and the second discharge pipe is sealed by using an inserting sleeve, a clamping groove, a butt joint sleeve and a sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene production, and specifically relates to a discharging structure of a polyethylene material production line. Background Technique

[0002] During the production process of polyethylene powder on the production line, it is necessary to transport the polyethylene powder to the packaging machine through a discharging mechanism to complete the packaging process. However, there are still certain defects in the existing discharging mechanism of the polyethylene material production line during use;

[0003] For example, a powder conveying pipeline structure proposed in the application number CN202321941509.7 includes a powder conveying pipe. A main conveying air path is formed in the powder conveying pipe. A side air path is connected to the upper branch of the powder conveying pipe. The side air path obliquely penetrates from the outside of the powder conveying pipe into the powder conveying pipe and is tangent to the main conveying air path. After being tangent, the side air path converges with the main conveying air path. In the actual use process, when splicing the powder conveying pipeline structure in this application, a simple welding structure is generally used, so the sealing effect at the welding point cannot be guaranteed. At the same time, when connecting the powder conveying pipeline structure in this application to a valve, a flange connection method is usually used, and the flange connection method requires multiple groups of fixing bolts for connection. Therefore, when separating the valve from the pipeline, the operation complexity increases.

[0004] Therefore, we propose a discharging structure of a polyethylene material production line to solve the problems mentioned above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a discharging structure of a polyethylene material production line to solve the problems of reduced sealing performance in the direct welding method and reduced operation convenience when separating the pipeline from the valve mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A discharging structure of a polyethylene material production line includes a first discharging pipe, a second discharging pipe, and a valve.

[0007] The first discharging pipe and the second discharging pipe are hermetically connected by a sealing docking mechanism.

[0008] One end of the second discharging pipe is fixedly installed with a second flange. One side of the second flange is fitted and connected with a first flange. The first flanges are symmetrically installed at both ends of the valve. The first flange and the second flange are positioned and connected by a docking positioning mechanism.

[0009] Preferably, the sealed docking mechanism includes a welding groove opened at the connection port of the first discharge pipe and the second discharge pipe. An insertion sleeve is fixedly installed on the inner ring of the connection end of the first discharge pipe. A clamping groove is opened on the inner ring of the insertion sleeve. A docking sleeve is fixedly installed on the inner ring of the connection end of the second discharge pipe and the first discharge pipe. A sealing ring is fixedly connected to the inner ring of the docking sleeve.

[0010] Preferably, the welding groove is welded and connected by the method of argon-electricity combined welding. The sealing ring is connected to the insertion sleeve through the clamping groove in a socket connection manner.

[0011] With the design of the above structure, during the splicing process of the first discharge pipe and the second discharge pipe, the two can be hermetically welded and internally sealed through the sealed docking mechanism, which is beneficial to preventing leakage at the connection and improving the sealing performance of the discharge structure of the polyethylene material production line.

[0012] Preferably, the docking and positioning mechanism includes a fixed seat fixedly installed on the side elevation of the second flange. The outer ring of the fixed seat is symmetrically installed with telescopic rods. The outer ends of the telescopic rods are fixedly connected with clamping seats. A spring is sleeved on the outer ring of the telescopic rods. One end of the clamping seat is fixedly installed with an inclined plate. An external thread is opened on the outer ring of the connection end of the second discharge pipe and the second flange. A knob is sleeved on the outer ring of the external thread. A pressing ring is rotatably installed at one end of the knob.

[0013] Preferably, the clamping seat and the fixed seat form a telescopic structure through the telescopic rods and the spring. The other end of the clamping seat is clamped and connected with the first flange and the second flange.

[0014] Preferably, the knob and the external thread cooperate to form a threaded movement structure with the second discharge pipe. When the pressing ring moves forward and backward, it cooperates with the inclined plate to form a pressing mechanism with the clamping seat.

[0015] With the design of the above structure, when connecting the second discharge pipe and the valve, it is convenient to use the first flange and the second flange to cooperate with the sealing gasket to achieve a sealed and fitted connection. Furthermore, the docking and positioning mechanism can position and separate the first flange and the second flange, which is beneficial to ensuring the connection sealing stability between the second discharge pipe and the valve during positioning, and is also beneficial to separating the second discharge pipe and the valve during separation, realizing the disassembly, replacement, maintenance, and cleaning of the valve.

[0016] Compared with the prior art, the beneficial effect of the present utility model is: the discharge structure of the polyethylene material production line;

[0017] 1. A first discharge pipe, a second discharge pipe and a sealing and docking mechanism are provided. During the welding and splicing process between the first discharge pipe and the second discharge pipe, the setting of the welding groove is combined with the argon-electricity combined welding method, ensuring the flatness and tightness of the welding. The connection between the first discharge pipe and the second discharge pipe is sealed on the inner circle by using a plugging sleeve, a clamping groove, a docking sleeve and a sealing ring, which is beneficial to double-sealing the welded part of the discharge structure and improving the sealing effect.

[0018] 2. A first flange, a second flange and a docking and positioning mechanism are provided. During the connection process between the discharge pipe and the valve, the first flange and the second flange can be hermetically fitted with a gasket, and then the first flange and the second flange can be quickly docked, positioned and separated by operating the docking and positioning mechanism, improving the operation convenience of the disassembly and assembly work of the valve and the second discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the side section of the first discharge pipe and the exploded structure of the sealing and docking mechanism of the present utility model;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the sealing and docking mechanism of the present utility model;

[0022] Figure 4 It is a schematic diagram of the exploded structure of the second discharge pipe and the valve of the present utility model;

[0023] Figure 5 It is a schematic side view structure diagram of the docking and positioning mechanism of the present utility model.

[0024] In the figure: 1. First discharge pipe; 2. Second discharge pipe; 3. Sealing and docking mechanism; 301. Welding groove; 302. Plugging sleeve; 303. Clamping groove; 304. Docking sleeve; 305. Sealing ring; 4. Valve; 5. First flange; 6. Second flange; 7. Docking and positioning mechanism; 701. Fixed seat; 702. Telescopic rod; 703. Clamping seat; 704. Spring; 705. Inclined plate; 706. External thread; 707. Knob; 708. Compression ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5 , the present utility model provides a technical solution: a discharge structure for a polyethylene material production line, which includes a first discharge pipe 1, a second discharge pipe 2 and a valve 4. A sealing docking mechanism 3 is used for sealing connection between the first discharge pipe 1 and the second discharge pipe 2. The sealing docking mechanism 3 includes a welding groove 301 opened at the connection port of the first discharge pipe 1 and the second discharge pipe 2. The welding groove 301 is welded and connected by the method of argon-arc and electric welding. An insertion sleeve 302 is fixedly installed on the inner circle of the connection end of the first discharge pipe 1. A clamping groove 303 is opened on the inner circle of the insertion sleeve 302. A docking sleeve 304 is fixedly installed on the inner circle of the connection end of the second discharge pipe 2 and the first discharge pipe 1. A sealing ring 305 is fixedly connected to the inner circle of the docking sleeve 304. The sealing ring 305 is inserted and connected with the insertion sleeve 302 through the clamping groove 303;

[0027] The design of the above structure enables the insertion sleeve 302 on the inner circle of the connection end of the first discharge pipe 1 to fit with the docking sleeve 304 on the inner circle of the connection end of the second discharge pipe 2 when splicing the first discharge pipe 1 and the second discharge pipe 2. Furthermore, the clamping groove 303 opened on the inner circle of the insertion sleeve 302 will be inserted and connected with the insertion sleeve 302 on the inner circle of the second discharge pipe 2. At this time, the inner circle of the connection between the first discharge pipe 1 and the second discharge pipe 2 is in a sealed state, and the welding groove 301 at the connection between the first discharge pipe 1 and the second discharge pipe 2 is also in a butt joint state. Furthermore, the method of argon-arc and electric welding can be used to weld the welding groove 301 smoothly and in a sealed manner, forming a seal on the outer circle of the connection. Therefore, it is beneficial to form a double seal at the connection of the discharge structure of the polyethylene material production line, improving the sealing effect.

[0028] A second flange 6 is fixedly installed at one end of the second discharge pipe 2. A first flange 5 is attached to one side of the second flange 6. The first flange 5 is symmetrically installed at both ends of the valve 4. The first flange 5 and the second flange 6 are positioned and connected through a docking positioning mechanism 7. The docking positioning mechanism 7 includes a fixed seat 701 fixedly installed on the side elevation of the second flange 6. Telescopic rods 702 are symmetrically installed on the outer circle of the fixed seat 701. A clamping seat 703 is fixedly connected to the outer end of the telescopic rod 702. A spring 704 is sleeved on the outer circle of the telescopic rod 702. The clamping seat 703 forms a telescopic structure with the fixed seat 701 through the telescopic rod 702 and the spring 704. The other end of the clamping seat 703 is clamped and connected with the first flange 5 and the second flange 6. An inclined plate 705 is fixedly installed at one end of the clamping seat 703. An external thread 706 is opened on the outer circle of the connection end of the second discharge pipe 2 and the second flange 6. A knob 707 is sleeved on the outer circle of the external thread 706. The knob 707 cooperates with the external thread 706 to form a threaded movement structure with the second discharge pipe 2. A pressing ring 708 is rotatably installed at one end of the knob 707. The pressing ring 708 forms a pressing mechanism with the inclined plate 705 and the clamping seat 703 when moving forward and backward;

[0029] With the design of the above structure, when connecting the second discharge pipe 2 and the valve 4, a sealing gasket is provided between the first flange 5 and the second flange 6, so as to ensure the connection tightness between the first flange 5 and the second flange 6. Then, by rotating the knob 707, it moves towards the valve 4 on the second discharge pipe 2 through the external thread 706, and then drives the pressing ring 708 to squeeze the inclined plate 705. Next, the inclined plate 705 will drive the engaging seat 703 to contract inward until the engaging seat 703 engages with the first flange 5 and the second flange 6, completing the sealed connection between the second discharge pipe 2 and the valve 4;

[0030] When it is necessary to disassemble the valve 4 from the second discharge pipe 2, by rotating the knob 707 in the reverse direction, the knob 707 moves in the opposite direction of the valve 4, so as to drive the pressing ring 708 to release the extrusion of the inclined plate 705. At this time, the spring 704 will push the engaging seat 703 to reset, releasing the engagement between the engaging seat 703 and the first flange 5 and the second flange 6, and then the valve 4 can be disassembled to realize the separation from the second discharge pipe 2. The telescopic rod 702 can limit the expansion and contraction of the engaging seat 703 to ensure stability.

[0031] Thus, a series of operations are completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A discharge structure of a polyethylene material production line, comprising a first discharge pipe (1), a second discharge pipe (2) and a valve (4), characterized in that: The first discharge pipe (1) and the second discharge pipe (2) are sealedly connected by a sealing docking mechanism (3); A second flange (6) is fixedly mounted on one end of the second discharge pipe (2), a first flange (5) is fittedly connected to one side of the second flange (6), the first flange (5) is symmetrically mounted on both ends of the valve (4), and the first flange (5) and the second flange (6) are positioned and connected via a docking positioning mechanism (7).

2. The material discharging structure of a polyethylene material production line according to claim 1, characterized in that: The sealing docking mechanism (3) comprises a welding groove (301) provided at the connection port of the first discharge pipe (1) and the second discharge pipe (2); a plug-in sleeve (302) is fixedly installed on the inner ring of the connection end of the first discharge pipe (1); a clamping groove (303) is provided on the inner ring of the plug-in sleeve (302); a docking sleeve (304) is fixedly installed on the inner ring of the connection end of the second discharge pipe (2) and the first discharge pipe (1); and a sealing ring (305) is fixedly connected to the inner ring of the docking sleeve (304).

3. The material discharging structure of a polyethylene material production line according to claim 2, characterized in that: The welding groove (301) is welded and connected by argon electric welding, and the sealing ring (305) is connected to the plug-in sleeve (302) through the clamping groove (303).

4. The material discharging structure of a polyethylene material production line according to claim 1, characterized in that: The docking positioning mechanism (7) comprises a fixing seat (701) fixedly mounted on the side surface of the second flange (6); a telescopic rod (702) is symmetrically mounted on the outer ring of the fixing seat (701); the outer end of the telescopic rod (702) is fixedly connected to a snap-fit ​​seat (703); the outer ring of the telescopic rod (702) is sleeved with a spring (704); one end of the snap-fit ​​seat (703) is fixedly mounted with an inclined plate (705); the outer ring of the connecting end of the second discharge pipe (2) and the second flange (6) is provided with an external thread (706); the outer ring of the external thread (706) is sleeved with a knob (707); one end of the knob (707) is rotatably mounted with a clamping ring (708).

5. The material discharging structure of a polyethylene material production line according to claim 4, characterized in that: The engaging seat (703) forms a telescopic structure with the fixing seat (701) through the telescopic rod (702) and the spring (704), and the other end of the engaging seat (703) is engaged and connected with the first flange (5) and the second flange (6).

6. The material discharging structure of a polyethylene material production line according to claim 5, characterized in that: The knob (707) cooperates with the external thread (706) and the second discharge pipe (2) to form a threaded moving structure, and the clamping ring (708) cooperates with the inclined plate (705) and the engaging seat (703) to form a clamping mechanism when moving forward and backward.

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