Outer sizing device for plastic pipe production

Abstract

The utility model relates to the technical field of plastic pipe production, in particular to an external sizing device for plastic pipe production. According to the technical scheme, the device comprises a mounting base and a discharging base, a vacuum cover is fixedly mounted on one side of the mounting base, a closing plate is fixedly mounted on one side of the vacuum cover, a sizing pipe is fixedly mounted in the vacuum cover, multiple sets of through holes are formed in the surface of the sizing pipe, and two sets of vacuum connectors are fixedly mounted on one side of the discharging base; and a vacuum pipe extending into the vacuum cover is fixedly mounted on the other side of the vacuum joint. Through the combination of various structures, the device can aggregate and collect cooled water liquid, the situation that the working area is polluted and water resources are lost and wasted due to the fact that the cooled water liquid splashes when being discharged is avoided, and the device can support and reinforce the vacuum cover. The situation that the vacuum cover deforms in the using process is avoided or reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe production, in particular to an external sizing device for plastic pipe production. Background Art

[0002] Plastic pipes are generally made of synthetic resin, that is, polyester as raw material, with the addition of stabilizers, lubricants, plasticizers, etc., and are made by extrusion in a pipe making machine using the "plasticization" method. It is mainly used as piping for tap water supply systems, drainage, exhaust and sewage sanitary pipes, underground drainage pipe systems, rainwater pipes, and threading pipes for supporting wire installation in building buildings. When producing plastic pipes, it is necessary to limit their outer diameters, so an external sizing device is needed. Among them, the "plastic pipe sizing device" disclosed in the application number "CN206718434U" has solved the technical disadvantages of plastic pipe fittings that are difficult to shape and easy to stick and deform. However, in actual use, devices with similar structures still have many defects. For example, the water cooling structure is relatively simple, and the plastic pipe after sizing is not splash-proof when it is water-cooled, which causes water splashing when the device is water-cooled, causing pollution in the working area and waste of water resources; at the same time, it does not have the function of corresponding support and reinforcement of the interior during the internal vacuum operation. When the vacuum cover of the device is operated for a long time, it will be deformed and damaged, resulting in a reduction in the service life of the device, so it is necessary to design an external sizing device for plastic pipe production. Utility Model Content

[0003] The utility model aims to provide an external sizing device for producing plastic pipes to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic pipe production external sizing device, comprising a mounting seat and a discharge seat, a vacuum hood is fixedly mounted on one side of the mounting seat, and a closing plate is fixedly mounted on one side of the vacuum hood, a sizing tube is fixedly mounted inside the vacuum hood, and a plurality of through holes are arranged on the surface of the sizing tube, two groups of vacuum joints are fixedly mounted on one side of the discharge seat, and a vacuum tube extending to the inside of the vacuum hood is fixedly mounted on the other side of the vacuum joint, a plurality of groups of vacuum suction nozzles are fixedly mounted on the vacuum tube at equal distances, a plurality of groups of rib rings corresponding to the vacuum suction nozzles are fixedly mounted inside the vacuum hood, a liquid injection tube is fixedly mounted on the front and back sides of the discharge seat, and a liquid drainage hole and a liquid distribution hole used in conjunction with the liquid injection tube are arranged inside the discharge seat, a mounting tube is fixedly mounted on one side of the discharge seat, and a recovery hood is fixedly mounted on one side of the mounting tube.

[0005] A plastic pipe production external sizing device using the technical solution is provided, wherein the mounting seat facilitates the installation and connection of the device to the external plastic pipe extrusion equipment, and the vacuum joint can be connected to the external vacuum pumping equipment, so that the inside of the vacuum cover can be evacuated through the vacuum tube and the vacuum suction nozzle, and multiple groups of vacuum suction nozzles increase the uniformity of vacuum extraction inside the vacuum cover by extracting vacuum in multiple areas, and the rib ring and the vacuum suction nozzle are installed correspondingly, so that the inside of the vacuum cover can be supported and strengthened through the rib ring, thereby increasing the strength of the inside of the vacuum cover under the vacuum state, avoiding or reducing the deformation of the inside of the vacuum cover under the vacuum state for a long time, thereby increasing the stability of the device during use and improving the service life, and the sizing tube and the through hole can limit the outer diameter of the extruded plastic pipe by vacuum, thereby realizing the function of limiting the outer diameter of the plastic pipe;

[0006] The discharge seat can discharge the plastic pipe after sizing, the injection pipe is connected to the external coolant pipe, the plastic pipe discharged from the discharge seat can be cooled by water through the discharge hole and the liquid distribution hole, the recovery cover can collect the used cooling coolant, and the recovery cover can prevent the used water from splashing and polluting the working area and causing water resource loss and waste, thereby increasing the stability of the device during operation.

[0007] Preferably, two sets of waterproof rings are fixedly mounted on the other side of the inner wall of the discharge seat, and the waterproof rings can prevent the cooling water from flowing back into the vacuum cover.

[0008] Preferably, a drain pipe is fixedly installed at the bottom of the recovery cover, and a flange is fixedly installed at the bottom of the drain pipe. The drain pipe is connected to an external recovery pipe through the flange, so that the cooling water collected in the recovery cover can be discharged through the drain pipe.

[0009] Preferably, a discharge cover is fixedly mounted on one side of the recovery cover, and two sets of liquid-proof rings are fixedly mounted on the inner wall of the discharge cover. The discharge cover facilitates the cooled plastic pipe to be discharged from the recovery cover, and the liquid-proof rings prevent the cooling water from flowing out through the discharge cover.

[0010] Preferably, a pull rod penetrating the closing plate is fixedly mounted on the outside of one side of the mounting seat, and an adjustment cap is threadedly mounted on the outside of one side of the pull rod. The pull rod can tighten and fix the mounting seat and the closing plate, thereby increasing the stability of the vacuum cover when in use, and the adjustment cap can adjust the tightness of the pull rod during operation.

[0011] Preferably, a plurality of sets of fixing plates are fixedly mounted on the outside of the mounting seat, and a sealing ring is fixedly mounted on the other side of the mounting seat. The fixing plates can fix the mounting seat by bolts, and the sealing ring increases the sealing performance of the connection between the mounting seat and the external extrusion equipment.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By setting the coordination between the injection pipe, the drainage hole and the recovery cover, the injection pipe and the drainage hole can be used to cool the plastic pipe after sizing, and the recovery cover can aggregate and collect the cooled water, avoiding splashing of the cooled water when it is discharged, causing pollution to the working area and waste of water resources, increasing the functionality of the device and improving the stability during operation.

[0014] 2. By setting the coordination between the vacuum tube and the vacuum nozzle, the vacuum cover and the rib ring, the vacuum tube and the vacuum nozzle evacuate the inside of the vacuum cover, thereby limiting the outer diameter of the plastic tube by means of vacuum, and the rib ring can support and strengthen the vacuum cover, and the rib ring corresponds to the vacuum nozzle one by one, thereby greatly improving the strength of the vacuum cover, avoiding or reducing the deformation of the vacuum cover during use, and increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the sizing tube structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the discharge seat structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the vacuum cover of the utility model;

[0019] Figure 5 This is a schematic diagram of the recovery cover structure of the utility model.

[0020] In the figure: 1. mounting seat; 101. fixing plate; 102. sealing ring; 103. pull rod; 104. adjusting cap; 2. vacuum cover; 201. rib ring; 3. closing plate; 4. discharge seat; 401. drainage hole; 402. liquid distribution hole; 403. waterproof ring; 5. mounting pipe; 501. recovery cover; 502. discharge cover; 503. liquid proof ring; 504. drainage pipe; 505. flange; 6. vacuum joint; 601. vacuum tube; 602. vacuum nozzle; 7. injection pipe; 8. sizing pipe; 801. through hole. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the utility model proposes a plastic pipe production external sizing device, comprising a mounting seat 1 and a discharge seat 4, a vacuum cover 2 is fixedly mounted on one side of the mounting seat 1, and a closing plate 3 is fixedly mounted on one side of the vacuum cover 2, a sizing tube 8 is fixedly mounted inside the vacuum cover 2, and a plurality of through holes 801 are arranged on the surface of the sizing tube 8, two groups of vacuum joints 6 are fixedly mounted on one side of the discharge seat 4, and a vacuum tube 601 extending to the inside of the vacuum cover 2 is fixedly mounted on the other side of the vacuum joint 6, a plurality of groups of vacuum suction nozzles 602 are fixedly mounted on the vacuum tube 601 at equal distances, a plurality of groups of rib rings 201 corresponding to the vacuum suction nozzles 602 are fixedly mounted inside the vacuum cover 2, a liquid injection tube 7 is fixedly mounted on the front and back sides of the discharge seat 4, and a liquid discharge hole 401 and a liquid distribution hole 402 used in conjunction with the liquid injection tube 7 are arranged inside the discharge seat 4, a mounting tube 5 is fixedly mounted on one side of the discharge seat 4, and a recovery cover 501 is fixedly mounted on one side of the mounting tube 5;

[0024] Two sets of waterproof rings 403 are fixedly installed on the other side of the inner wall of the discharge seat 4 , a drain pipe 504 is fixedly installed on the bottom of the recovery cover 501 , and a flange 505 is fixedly installed on the bottom of the drain pipe 504 .

[0025] The working principle of the external sizing device for plastic pipe production based on Example 1 is as follows: the mounting seat 1 facilitates the installation and connection of the device to the external plastic pipe extrusion equipment, and the vacuum joint 6 can be connected to the external vacuum pumping equipment, so that the inside of the vacuum cover 2 can be vacuumed through the vacuum tube 601 and the vacuum suction nozzle 602, and the multiple groups of vacuum suction nozzles 602 increase the uniformity of vacuum extraction inside the vacuum cover 2 by extracting vacuum in multiple areas, and the rib ring 201 and the vacuum suction nozzle 602 are installed correspondingly, so that the inside of the vacuum cover 2 can be supported and strengthened through the rib ring 201, thereby increasing the strength of the inside of the vacuum cover 2 under the vacuum state, avoiding or reducing the deformation of the inside of the vacuum cover 2 under the vacuum state for a long time, thereby increasing the stability of the device during use and improving the service life, and the sizing tube 8 and the through hole 801 can limit the outer diameter of the extruded plastic pipe by vacuum, thereby realizing the function of limiting the outer diameter of the plastic pipe;

[0026] The discharge seat 4 can discharge the plastic tube after sizing, the injection tube 7 is connected to the external coolant pipeline, and the plastic tube discharged from the discharge seat 4 can be cooled by water cooling through the discharge hole 401 and the liquid distribution hole 402. The waterproof ring 403 can prevent the cooling water from flowing back into the vacuum cover 2. The recovery cover 501 can collect the used cooling coolant. The recovery cover 501 can prevent the used water from splashing and polluting the working area and causing water resource loss and waste, thereby increasing the stability of the device during operation. The discharge pipe 504 is connected to the external recovery pipeline through the flange 505, so that the cooling water collected in the recovery cover 501 can be discharged through the discharge pipe 504.

[0027] Embodiment 2

[0028] like Figure 1 , Figure 2 and Figure 5 As shown, the utility model proposes a plastic pipe production external sizing device. Compared with the first embodiment, this embodiment also includes: a discharge cover 502 is fixedly installed on one side of the recovery cover 501, and two groups of liquid-proof rings 503 are fixedly installed on the inner wall of the discharge cover 502, a pull rod 103 passing through the closing plate 3 is fixedly installed on the outside of one side of the mounting seat 1, and an adjustment cap 104 is installed on the external thread of one side of the pull rod 103, a plurality of fixed plates 101 are fixedly installed on the outside of the mounting seat 1, and a sealing ring 102 is fixedly installed on the other side of the mounting seat 1.

[0029] In this embodiment, Figure 1 and Figure 2 , Figure 5 As shown, the discharge cover 502 facilitates the discharge of the cooled plastic pipe from the recovery cover 501, and the liquid-proof ring 503 prevents the cooling water from flowing out through the discharge cover 502; Figure 1 As shown, the pull rod 103 can tighten and fix the mounting base 1 and the closing plate 3, thereby increasing the stability of the vacuum cover 2 when in use, and the adjustment cap 104 can adjust the tightness of the pull rod 103 during operation; Figure 1 As shown, the fixing plate 101 can fix the mounting seat 1 by means of bolts, and the sealing ring 102 increases the sealing performance of the connection between the mounting seat 1 and the external extrusion equipment.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A plastic pipe production external sizing device, comprising a mounting seat (1) and a discharge seat (4), characterized in that: A vacuum cover (2) is fixedly mounted on one side of the mounting seat (1), and a closing plate (3) is fixedly mounted on one side of the vacuum cover (2); a calibrating tube (8) is fixedly mounted inside the vacuum cover (2), and a plurality of through holes (801) are arranged on the surface of the calibrating tube (8); two groups of vacuum joints (6) are fixedly mounted on one side of the discharge seat (4), and a vacuum tube (601) extending to the inside of the vacuum cover (2) is fixedly mounted on the other side of the vacuum joint (6), and the vacuum tube (601) is fixedly mounted at equal distances. A plurality of groups of vacuum suction nozzles (602) are installed, and a plurality of groups of rib rings (201) corresponding to the vacuum suction nozzles (602) are fixedly installed inside the vacuum cover (2), a liquid injection pipe (7) is fixedly installed on the front and back sides of the discharge seat (4), and a liquid discharge hole (401) and a liquid distribution hole (402) used in conjunction with the liquid injection pipe (7) are provided inside the discharge seat (4), a mounting pipe (5) is fixedly installed on one side of the discharge seat (4), and a recovery cover (501) is fixedly installed on one side of the mounting pipe (5).

2. The external sizing device for plastic pipe production according to claim 1, characterized in that: Two sets of waterproof rings (403) are fixedly mounted on the other side of the inner wall of the discharge seat (4).

3. The external sizing device for plastic pipe production according to claim 1, characterized in that: A drain pipe (504) is fixedly mounted on the bottom of the recovery cover (501), and a flange (505) is fixedly mounted on the bottom of the drain pipe (504).

4. The external sizing device for plastic pipe production according to claim 1, characterized in that: A discharge cover (502) is fixedly mounted on one side of the recovery cover (501), and two groups of liquid-proof rings (503) are fixedly mounted on the inner wall of the discharge cover (502).

5. The external sizing device for plastic pipe production according to claim 1, characterized in that: A pull rod (103) penetrating the closing plate (3) is fixedly mounted on the outside of one side of the mounting seat (1), and an adjustment cap (104) is threadedly mounted on the outside of one side of the pull rod (103).

6. The external sizing device for plastic pipe production according to claim 1, characterized in that: A plurality of sets of fixing plates (101) are fixedly mounted on the outside of the mounting seat (1), and a sealing ring (102) is fixedly mounted on the other side of the mounting seat (1).

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