Vacuumizing device for corrugated pipe production

Abstract

The utility model discloses a vacuumizing device for corrugated pipe production, and belongs to the technical field of pipeline production equipment. The vacuumizing device comprises a plurality of vacuum pumps, first connecting pipes are arranged at the input ends of the vacuum pumps, a plurality of second connecting pipes are arranged in parallel, and one ends of the second connecting pipes are connected with the first connecting pipes; two ends of the third connecting pipe are respectively connected with the adjacent second connecting pipes; the first connecting pipe and the second connecting pipe are arranged in parallel, and the third connecting pipe can be vertically arranged and / or obliquely arranged relative to the second connecting pipe; a separator is arranged between the second connecting pipe and the first connecting pipe, and the separator is closer to the vacuum pump than the third connecting pipe. The separator can be used for oil-gas separation, and it is guaranteed that the vacuum environment meets the pipe production requirement; when the separator needs to be overhauled and replaced, the corresponding valve on the second pipeline can be closed, so that the pumped air enters the adjacent second pipeline from the third pipeline, the production is prevented from being stopped due to reasons, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline production equipment, and specifically relates to a vacuum pumping device for producing corrugated pipes. Background Art

[0002] Double-walled corrugated pipes have the characteristics of strong pressure resistance and long service life. As drainage, sewage, exhaust and other pipes, they are widely used in municipal administration, construction and other fields. When the corrugated pipe is formed by the molding machine, if the vacuum degree is unstable or there are impurities in the pipe, it is easy to cause the prepared corrugated pipe to have cracks and whitening of the inner wall, which will affect the quality of the product.

[0003] CN219446207U discloses a vacuum pumping equipment for producing HDPE double-wall corrugated pipes, including a vacuum device, a valve control box is provided on the right side of the vacuum device, a vacuum tube is provided on the back side of the vacuum device, a vacuum valve is provided on one end of the vacuum tube away from the vacuum device, and a molding machine is provided on the other end of the vacuum valve. The vacuum device is started by using the vacuum device, the vacuum tube, the valve control box, the vacuum valve and the molding machine in coordination, and the vacuum device vacuumizes the double-arm corrugated pipe on the molding machine through the vacuum tube. When a production line needs to be stopped, the vacuum valve is closed by controlling the valve control box, so that the equipment can control multiple production lines separately, thereby solving the problem that the existing HDPE double-wall corrugated pipe cannot be used flexibly, cannot be controlled and replaced separately when multiple or single production lines are put into production at the same time during the production process. However, the above vacuum pumping equipment does not separate oil and gas. After long-term operation, the presence of impurities makes it difficult for the vacuum pumping to meet the quality requirements of production. Utility Model Content

[0004] The utility model provides a vacuum pumping device for producing a corrugated pipe to solve the above technical problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A vacuum extraction device for producing corrugated pipes includes a vacuum pump, which is provided in plurality. A first connecting pipe is provided at the input end of the vacuum pump, and further includes: a second connecting pipe, which is provided in plurality and arranged in parallel with each other and one end of which is connected to the first connecting pipe; a third connecting pipe, whose two ends are respectively connected to the adjacent second connecting pipes; the first connecting pipe and the second connecting pipe are arranged in parallel with each other, and the third connecting pipe can be arranged vertically and / or obliquely relative to the second connecting pipe; a separator is provided between the second connecting pipe and the first connecting pipe, and the separator is closer to the vacuum pump than the third connecting pipe.

[0007] Furthermore, the vacuum pumping device also includes a plurality of valves, which are respectively arranged on the third connecting pipe and on the second connecting pipe between the separator and the third connecting pipe.

[0008] Furthermore, the vacuum extraction device also includes a vacuum tank, which is arranged between the first connecting pipe and the second connecting pipe; the first connecting pipe and the second connecting pipe are arranged on different sides of the vacuum tank and are located at different heights.

[0009] Furthermore, the valve is arranged on the first connecting pipe on the side of the vacuum tank; the valve is also arranged on the second connecting pipe on the side of the vacuum tank, so that the valve is arranged on the second connecting pipe on both sides of the separator.

[0010] Furthermore, a fixing seat is provided at the bottom of the vacuum pump, fixing holes are provided on both sides of the fixing seat, and adjacent fixing holes on adjacent fixing seats are movably connected using a U-shaped fixing piece.

[0011] Furthermore, the fixing seat is provided with a pulley; and the installation area where the vacuum pump is located is provided with a slideway matching the pulley, so that the pulley can slide along the slideway.

[0012] Furthermore, a groove is provided below the pulley at the location where the vacuum pump is installed in the installation area, so that the pulley is immersed in the groove.

[0013] Furthermore, the vacuum pumping device also includes a controller, and the controller is electrically connected to the vacuum pump.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The separator can separate oil and gas to ensure that the vacuum environment meets the requirements of pipe production; when the separator needs to be repaired or replaced, the corresponding valve on the second pipeline can be closed to allow the extracted air to enter the adjacent second pipeline from the third pipeline, avoiding production stoppage due to any reason and improving production efficiency.

[0016] 2. Valves are installed on the first pipeline, the second pipeline and the third pipeline so that when the vacuum pump, separator, etc. are inspected and maintained as needed, the device can still operate normally to avoid losses caused by production suspension.

[0017] 3. The vacuum tank has a large volume, which can stabilize the vacuum and provide a stable vacuum environment for the production of pipes.

[0018] 4. The fixed seat can be used to fix the vacuum pump. By combining the fixing hole with the fixing piece, adjacent fixing seats can be fixed together, thereby improving the overall stability. The pulley arranged at the bottom of the fixing seat facilitates the movement of the vacuum pump when inspecting and replacing it. A groove is arranged under the pulley that fixes the vacuum pump position, thereby avoiding problems such as loose fixation caused by the pulley when fixing the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a top view of the utility model.

[0021] Figure 2 It is the front view of the utility model.

[0022] Figure 3 It is the right view of the utility model.

[0023] Figure 4 This is a schematic diagram of removing and replacing a separator according to the utility model.

[0024] Figure numerals: 1-vacuum pump, 11-fixing seat, 12-fixing hole, 13-fixing piece, 14-pulley, 2-first connecting pipe, 3-second connecting pipe, 4-third connecting pipe, 5-separator, 6-valve, 7-vacuum tank, 8-installation area, 81-slide, 82-groove, 9-controller. DETAILED DESCRIPTION

[0025] In order to facilitate a better understanding of the present invention, the following examples are used to illustrate the present invention in conjunction with the accompanying drawings. These examples belong to the protection scope of the present invention, but do not limit the protection scope of the present invention.

[0026] Example 1

[0027] A vacuum device for producing bellows, such as Figure 1-Figure 3As shown, it includes a vacuum pump 1, which is provided with a plurality of first connecting pipes 2 at the input end of the vacuum pump 1, and also includes: a plurality of second connecting pipes 3 are provided in parallel with each other, one end of which is connected to the first connecting pipe 2; a third connecting pipe 4, both ends of which are respectively connected to the adjacent second connecting pipes 3; the first connecting pipe 2 and the second connecting pipe 3 are arranged in parallel with each other, and the third connecting pipe 4 can be arranged vertically and / or obliquely relative to the second connecting pipe 3; a separator 5 is provided between the second connecting pipe 3 and the first connecting pipe 2, and the separator 5 is closer to the vacuum pump 1 than the third connecting pipe 4.

[0028] The number of vacuum pumps can be determined according to the number of production lines to ensure that the vacuum parameters required for production can be obtained when the vacuum pump is running; the number of third connecting pipes can be consistent with the number of molding machines required to be vacuumed.

[0029] The separator is installed on the second connecting pipe. The installation method used is preferably a movable connection, such as a threaded connection, and is a conventional existing installation method. It is convenient for the separator to be disassembled and assembled during maintenance. The separator plays the role of oil and gas separation, ensuring that there are no impurities in the vacuum environment that affect the quality of the produced pipes.

[0030] When the third connecting pipe is vertically connected to the second connecting pipe, there is a right angle at the pipe connection. In order to make the air flow smoother, the two ends of the third connecting pipe can be obliquely connected to two adjacent second connecting pipes, so that the angle between the pipes is more gentle.

[0031] A branch pipe can be arranged at the end of the second connecting pipe, so that a plurality of vacuum extraction pipes on the molding machine can be connected to the branch pipe, thereby ensuring the stability of vacuum extraction.

[0032] When in use, all pipelines have been connected and are well sealed. The vacuum pump is started to perform vacuum operations. The third connecting pipe allows air to enter the connected second pipeline to improve efficiency. The separator installed on the second pipeline can separate oil and gas to ensure that the vacuum environment meets production requirements. The vacuum pump can be turned off after completion. When a production line is not in use, some vacuum pumps can be turned off as needed to maintain normal production operations and reduce operating costs.

[0033] Example 2

[0034] like Figure 1-Figure 2 As shown, the vacuum pumping device further includes a plurality of valves 6 , which are respectively arranged on the third connecting pipe 4 and on the second connecting pipe 3 between the separator 5 and the third connecting pipe 4 .

[0035] like Figure 1-Figure 2 As shown, the vacuum pumping device further includes a vacuum tank 7, which is disposed between the first connecting pipe 2 and the second connecting pipe 3; the first connecting pipe 2 and the second connecting pipe 3 are disposed on different sides of the vacuum tank 7 and at different heights.

[0036] like Figure 1-Figure 2 As shown, the valve 6 is arranged on the first connecting pipe 2 on the side of the vacuum tank 7; the valve 6 is also arranged on the second connecting pipe 3 on the side of the vacuum tank 7, so that the second connecting pipes 3 on both sides of the separator 5 are provided with valves 6.

[0037] Since a plurality of second connecting pipes are provided, the ends of the second connecting pipes are connected to the vacuum pipes of the forming machine. In order to avoid the poor oil-gas separation effect of the separator after long-term use and thus affect the vacuum effect, a valve is provided. When a separator needs to be replaced, the valve on the second connecting pipe corresponding to the separator is closed, and then the valve on the third connecting pipe is opened, so that the gas can enter other second connecting pipes through the third connecting pipe to continue the vacuum operation, thus avoiding shutdown for maintenance and affecting production efficiency. Valves are provided at both ends of the separator. When a separator needs to be replaced after being separated for a long time, the valves on the second connecting pipes at both ends can be closed, the separator can be removed, and then a new separator can be replaced, thus avoiding the shutdown required for replacing the separator. The valve provided on the first connecting pipe can be closed when the corresponding vacuum pump needs to be shut down for maintenance, and will not affect the operation of other vacuum pumps.

[0038] The valve used is an existing product and can be selected according to actual conditions such as the vacuum degree required for production to meet the needs; the installation and connection method of the valve adopts existing technology; a one-way valve can also be set at one end of the second connecting pipe close to the vacuum tank.

[0039] A vacuum gauge can be set on the vacuum tank to facilitate checking of vacuum data. The vacuum tank can also be placed on a bracket. The vacuum tank used is large in size and has the function of stabilizing the vacuum, thus avoiding affecting the quality of pipe production due to unstable vacuum.

[0040] Example 3

[0041] like Figure 1-Figure 3 As shown, a fixing seat 11 is provided at the bottom of the vacuum pump 1 , fixing holes 12 are provided on both sides of the fixing seat 11 , and adjacent fixing holes 12 on adjacent fixing seats 11 are movably connected using a U-shaped fixing piece 13 .

[0042] like Figure 1-Figure 3 As shown, the fixed seat 11 is provided with a pulley 14; the installation area 8 where the vacuum pump 1 is located is provided with a slideway 81 matching the pulley 14, so that the pulley 14 can slide along the slideway 81. Figure 1-Figure 3 As shown, a groove 81 is provided below the pulley 14 at the installation area 8 where the vacuum pump 1 is installed, so that the pulley 14 is immersed in the groove 81 .

[0043] A traction ring may be provided on the side of the fixing seat to facilitate moving the vacuum pump out of or into the installation area together with the fixing seat when the vacuum pump needs to be removed and replaced; the fixing seat is used to firmly install the vacuum pump on the ground. When multiple vacuum pumps are required for production, the force is transmitted through the fixing parts to the fixing holes on the adjacent fixing seats, thereby fixing the multiple vacuum pumps together and improving the stability of the overall operation of the device; the fixing parts are movable connections, which are convenient for use when the vacuum pump needs to be disassembled and assembled during the actual process, thereby improving applicability.

[0044] The pulley arranged at the bottom of the fixing seat is convenient for the transfer of the vacuum pump, and the slideway arranged is convenient for the vacuum pump to enter and exit the installation area through the pulley; at the position where the vacuum pump needs to be fixed, in order to avoid the fixing seat being unstable due to the set pulley, a groove is arranged to ensure that the pulley is immersed in the groove after the fixing seat is installed, so that the pulley is in an invalid state after the fixing seat is installed, and the width and depth of the groove are slightly larger than the corresponding dimensions of the pulley.

[0045] The vacuum pump will generate vibration during operation. Therefore, a vibration-damping pad can be arranged between the vacuum pump and the fixed seat to reduce the vibration generated during the operation of the vacuum pump and improve stability.

[0046] Example 4

[0047] like Figure 1 As shown, the vacuum pumping device further includes a controller 9 , and the controller 9 is electrically connected to the vacuum pump 1 .

[0048] The controller can be installed on the outside of the vacuum pump or the outside of the vacuum tank according to the actual location; the controller is electrically connected to the vacuum pump to facilitate the control of the start and stop of electrical components through the controller, thereby improving the convenience of operation; a cabinet can be set on the outside of the controller to play a protective role; the connection method between the controller and the vacuum pump can adopt existing technology.

[0049] The vacuum pump, separator, valve, controller, etc. involved in the utility model are not the innovative features of the present invention, and the specific models used are not described here.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the statement "including an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum pumping device for producing a corrugated pipe, comprising a vacuum pump (1), wherein a plurality of vacuum pumps (1) are provided, wherein the input end of the vacuum pump (1) is provided with a first connecting pipe (2), wherein: Also includes: A plurality of second connecting pipes (3) are arranged in parallel with each other, one end of which is connected to the first connecting pipe (2); A third connecting pipe (4), both ends of which are respectively connected to the adjacent second connecting pipes (3); The first connecting pipe (2) and the second connecting pipe (3) are arranged parallel to each other, and the third connecting pipe (4) can be arranged vertically and / or obliquely relative to the second connecting pipe (3); A separator (5) is provided between the second connecting pipe (3) and the first connecting pipe (2), and the separator (5) is closer to the vacuum pump (1) than the third connecting pipe (4).

2. A vacuum pumping device for producing corrugated pipes according to claim 1, characterized in that: It also comprises a plurality of valves (6), wherein the valves (6) are respectively arranged on the third connecting pipe (4) and on the second connecting pipe (3) between the separator (5) and the third connecting pipe (4).

3. A vacuum pumping device for producing corrugated pipes according to claim 2, characterized in that: It also comprises a vacuum tank (7), wherein the vacuum tank (7) is arranged between the first connecting pipe (2) and the second connecting pipe (3); the first connecting pipe (2) and the second connecting pipe (3) are arranged on different sides of the vacuum tank (7) and at different heights.

4. A vacuum pumping device for producing corrugated pipes according to claim 3, characterized in that: The valve (6) is arranged on the first connecting pipe (2) on the side of the vacuum tank (7); the valve (6) is also arranged on the second connecting pipe (3) on the side of the vacuum tank (7), so that the valve (6) is arranged on the second connecting pipe (3) on both sides of the separator (5).

5. A vacuum pumping device for producing a corrugated pipe according to any one of claims 1 to 4, characterized in that: A fixing seat (11) is provided at the bottom of the vacuum pump (1), fixing holes (12) are provided on both sides of the fixing seat (11), and adjacent fixing holes (12) on adjacent fixing seats (11) are movably connected using U-shaped fixing parts (13).

6. A vacuum pumping device for producing corrugated pipes according to claim 5, characterized in that: The fixing seat (11) is provided with a pulley (14); the installation area (8) where the vacuum pump (1) is located is provided with a slideway (81) matching the pulley (14), so that the pulley (14) can slide along the slideway (81).

7. A vacuum pumping device for producing corrugated pipes according to claim 6, characterized in that: The position where the vacuum pump (1) is installed in the installation area (8) is provided with a groove (82) below the pulley (14) so ​​that the pulley (14) is immersed in the groove (82).

8. A vacuum pumping device for producing a corrugated pipe according to any one of claims 1 to 7, characterized in that: It also includes a controller (9), which is electrically connected to the vacuum pump (1).

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