Plastic-lined composite pipe penetrating guide device and using method

Abstract

The invention discloses a plastic-lined composite pipe penetrating guide device and a using method, and relates to the field of plastic-lined composite pipe production.The plastic-lined composite pipe penetrating guide device comprises a guide frame, a first linear telescopic driving component, a second linear telescopic driving component, an upper guide mechanism and a lower guide mechanism; each lower guide support is in butt joint with one upper guide support to form a guide sleeve, inner clamps at the front ends of pull rods of the tube drawing machine are located in one guide sleeve, the lining plastic tube and the inner clamps of the tube drawing machine can be centered conveniently through the guide sleeves, and outer clamps of the tube drawing machine are clamped and positioned through the clamping sleeves. And the conical insertion section of the lining plastic pipe can be tightly inserted into the outer clamp, so that the lining plastic pipe is clamped by the inner clamp and the outer clamp. According to the lining plastic composite pipe penetrating guiding device and the using method, automatic guiding is achieved, and the purposes of saving the labor cost, improving the production efficiency and reducing the production safety risk are achieved.

Description

Technical Field

[0001] The invention relates to the field of plastic-lined composite pipe production, and in particular to a plastic-lined composite pipe threading guide device and a use method thereof. Background Art

[0002] Lined plastic composite pipes are increasingly favored by the engineering community because they have both the strength and rigidity of steel pipes and the anti-corrosion properties of plastic pipes. They are now widely used in media transportation and environmental protection treatment systems in the chemical, electric power, metallurgy, food and other industries. They are also widely used in drinking water projects and water supply and drainage projects, showing their indispensable role in modern infrastructure construction. How to achieve the alignment and guidance of the inner lining plastic pipe and the steel pipe during the production process is crucial to the entire production line. At present, the factory mainly uses manual methods to achieve the alignment and guidance of the inner lining plastic pipe and the steel pipe. This process consumes a lot of manpower and material resources, resulting in low processing efficiency and the inability to achieve large-scale automated production. In addition, the manual guidance process poses a great challenge to worker safety. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a plastic-lined composite pipe threading guide device and a use method, which realizes automated guidance, achieves the purpose of saving labor costs, improving production efficiency, and reducing production safety risks.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a pipe threading guide device for a plastic-lined composite pipe, comprising a guide frame, a first linear telescopic drive component, a second linear telescopic drive component, an upper guide mechanism and a lower guide mechanism, wherein the guide frame is used to be arranged on one side of a pipe drawing machine, the upper guide mechanism comprises an upper base, a plurality of upper guide supports with openings facing downwards and a plurality of upper outer clamp supports with openings facing downwards, the upper end of the first linear telescopic drive component is mounted on the upper part of the guide frame, the first linear telescopic drive component is used to drive the upper base to reciprocate in a vertical direction, and the plurality of The upper guide support is sequentially arranged at the lower part of the upper base along the length direction of the upper base, and a plurality of upper outer clamp supports are sequentially arranged at the lower part of the upper base along the length direction of the upper base, and each of the upper outer clamp supports is located on a side of the upper guide support close to the pipe drawing machine; the lower guide mechanism includes a lower base, a plurality of lower guide supports with openings facing upwards, and a plurality of lower outer clamp supports with openings facing upwards, and the lower end of the second linear telescopic drive component is installed at the lower part of the guide frame, and the second linear telescopic drive component is used to drive the The lower base reciprocates in the vertical direction, and a plurality of lower guide supports are sequentially arranged on the upper part of the lower base along the length direction of the lower base. The lower guide supports correspond to the upper guide supports one by one. A guide sleeve is formed after a lower guide support is docked with an upper guide support. The cross-sectional area of ​​the central hole of the guide sleeve decreases sequentially from the end away from the tube drawing machine to the end close to the tube drawing machine. Each guide sleeve is used to accommodate an inner clamp at the front end of a pull rod of the tube drawing machine. A plurality of lower outer clamp supports are arranged along the The length direction of the lower base is arranged in sequence on the upper part of the lower base, and each of the lower outer clamp supports is located on a side of a lower guide support close to the pipe drawing machine. The lower outer clamp supports correspond to the upper outer clamp supports one by one, and a lower outer clamp support is connected with an upper outer clamp support to form a clamping sleeve. The central axis of the central hole of each clamping sleeve is colinear with the central axis of the central hole of a guide sleeve, and each clamping sleeve is used to clamp and position an external clamp slidably mounted on a pull rod of the pipe drawing machine.

[0006] Preferably, the upper guide mechanism also includes a plurality of upper guide support plates with openings facing downward, each of the upper guide support plates is fixed to one end of the upper guide support away from the pipe drawing machine; the lower guide mechanism also includes a plurality of lower guide support plates with openings facing upward, each of the lower guide support plates is fixed to one end of the lower guide support away from the pipe drawing machine, and a lower guide support plate and an upper guide support plate are connected to form a bell-mouth sleeve, and the central axis of the center hole of each bell-mouth sleeve is colinear with the central axis of the center hole of a guide sleeve, and the cross-sectional area of ​​the center hole of the bell-mouth sleeve decreases successively from the end away from the guide sleeve to the end close to the guide sleeve.

[0007] Preferably, the upper guide mechanism also includes a first cross beam, a first horizontal guide rail and a plurality of first locking sliders, the lower end of the first linear telescopic drive component is connected to the upper part of the first cross beam, both ends of the first cross beam are slidably mounted on the guide frame, the first horizontal guide rail is arranged at the lower part of the first cross beam, and a plurality of the first locking sliders are sequentially arranged at the upper part of the upper base along the length direction of the upper base, and each of the first locking sliders is slidably mounted at the lower part of the first horizontal guide rail.

[0008] Preferably, the upper guide mechanism also includes two first sliding components respectively arranged at the two ends of the first cross beam, the first sliding component includes a first connecting beam arranged at one end of the first cross beam and first vertical sliding blocks respectively arranged at the front and rear ends of the first connecting beam; two guide rail groups are symmetrically arranged inside the guide frame, each guide rail group includes two first vertical guide rails, and the two first vertical sliding blocks of each first sliding component are respectively slidably installed on the two first vertical guide rails of one guide rail group.

[0009] Preferably, the lower guide mechanism also includes a second cross beam, a second horizontal guide rail and a plurality of second locking sliders, the upper end of the second linear telescopic drive component is connected to the lower portion of the second cross beam, both ends of the second cross beam are slidably mounted on the guide frame, the second horizontal guide rail is arranged at the upper portion of the second cross beam, a plurality of second locking sliders are sequentially arranged at the lower portion of the lower base along the length direction of the lower base, and each of the second locking sliders is slidably mounted on the upper portion of the second horizontal guide rail.

[0010] Preferably, the lower guide mechanism also includes two second sliding assemblies respectively arranged at the two ends of the second cross beam, the second sliding assembly includes a second connecting beam arranged at one end of the second cross beam and second vertical sliding blocks respectively arranged at the front and rear ends of the second connecting beam, and the two second vertical sliding blocks of each second sliding assembly are respectively slidably installed on the two first vertical guide rails of one guide rail group.

[0011] Preferably, it also includes a third linear telescopic drive component, an upper guide mechanism and a lower guide mechanism, the upper guide mechanism includes an upper mounting plate and a plurality of upper guide supports with openings facing downward, the upper end of the third linear telescopic drive component is installed on the upper part of the guide frame close to one end of the pipe drawing machine, the third linear telescopic drive component is used to drive the upper mounting plate to reciprocate in the vertical direction, and the plurality of upper guide supports are sequentially arranged at the lower part of the upper mounting plate along the length direction of the upper mounting plate; the lower guide mechanism includes a lower mounting plate and a plurality of lower guide supports with openings facing upward, The lower mounting plate is used to be set on the upper part of the front end of the frame of the pipe drawing machine, and multiple lower guide supports are sequentially arranged on the upper part of the lower mounting plate along the length direction of the lower mounting plate. The lower guide supports correspond to the upper guide supports one by one. A guide sleeve is formed after a lower guide support is connected with an upper guide support. The cross-sectional area of ​​the center hole of the guide sleeve decreases sequentially from the end close to the guide frame to the end far away from the guide frame. The central axis of the center hole of each guide sleeve is collinear with the central axis of the center hole of a guide sleeve.

[0012] Preferably, the upper guide mechanism also includes a third cross beam, a third horizontal guide rail and a plurality of third locking sliders, the lower end of the third linear telescopic driving component is connected to the upper end of the third cross beam, and both ends of the third cross beam are slidably mounted on the guide frame, the third horizontal guide rail is arranged at the lower part of the third cross beam, and a plurality of third locking sliders are sequentially arranged on the upper part of the upper mounting plate along the length direction of the upper mounting plate, and each of the third locking sliders is slidably mounted on the lower part of the third horizontal guide rail; the lower guide mechanism also includes a support plate and a limit pin, the support plate is used to be fixed to the upper part of the frame front end of the pipe drawing machine, the upper part of the support plate is provided with a strip groove, and the lower part of the lower mounting plate is provided with a strip block, the strip block is slidably mounted in the strip groove, and the limit pin is penetrated through the support plate and the strip block, thereby fixing the lower mounting plate to the support plate.

[0013] Preferably, the upper guide mechanism also includes two third sliding assemblies respectively arranged at both ends of the third cross beam, the third sliding assembly includes a connecting plate arranged at one end of the third cross beam and a third vertical slider arranged on the connecting plate, and two second vertical guide rails are symmetrically arranged on the rear side of the guide frame, and the two third vertical sliders are respectively slidably installed on the two second vertical guide rails.

[0014] The present invention also provides a method for using the pipe threading guide device based on the plastic-lined composite pipe, comprising the following steps:

[0015] Step 1: When the guiding action is performed, the first linear telescopic drive component and the second linear telescopic drive component respectively drive the upper guiding mechanism and the lower guiding mechanism to move in the vertical direction, so that each of the lower guiding supports is docked with one of the upper guiding supports to form a guiding sleeve, and the central axis of the central hole of each guiding sleeve is colinearly arranged with the central axis of one of the pulling rods of the tube drawing machine, and the inner clamps at the front ends of each of the pulling rods of the tube drawing machine are located in one of the guiding sleeves; and each of the lower outer clamp supports is docked with one of the upper outer clamp supports to form a clamping sleeve, and each clamping sleeve clamps and positions the outer clamp slidably sleeved on one of the pulling rods of the tube drawing machine;

[0016] Step 2: Cut the outer wall of the rear end of each inner lining plastic tube to form a tapered plug-in section, the cross-sectional area of ​​the tapered plug-in section decreases from the end away from the outer clamp to the end close to the outer clamp, each inner lining plastic tube is transferred to one of the guide sleeves by the previous process and sleeved on the outside of one of the inner clamps, the inner wall of the inner lining plastic tube fits the outer wall of the inner clamp, and the tapered plug-in section is tightly inserted into one of the outer clamps, thereby completing the clamping of the inner clamp and the outer clamp on the inner lining plastic tube;

[0017] Step three, after the guiding action is performed, the first linear telescopic drive component and the second linear telescopic drive component respectively drive the upper guiding mechanism and the lower guiding mechanism to move in the vertical direction, so that the corresponding lower guiding support and the upper guiding support are separated, and the corresponding lower outer clamp support and the upper outer clamp support are separated.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] When the plastic-lined composite pipe threading guide device of the present invention performs the guiding action, each lower guide support is docked with an upper guide support to form a guide sleeve, and the central axis of the central hole of each guide sleeve is arranged in line with the central axis of a pull rod of the pipe drawing machine, and the inner clamps at the front end of each pull rod of the pipe drawing machine are all located in a guide sleeve. The guide sleeve facilitates the alignment of the inner lining plastic pipe and the inner clamp of the pipe drawing machine, and the outer clamp of the pipe drawing machine is clamped and positioned by the clamping sleeve, so that the tapered plug-in section of the inner lining plastic pipe can be inserted into the outer clamp, thereby completing the clamping of the inner lining plastic pipe by the inner and outer clamps. The plastic-lined composite pipe threading guide device and the use method of the present invention realize automated guidance, thereby achieving the purpose of saving labor costs, improving production efficiency, and reducing production safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the use of the plastic-lined composite pipe threading guide device provided by the present invention in conjunction with a pipe drawing machine;

[0022] Figure 2 A first three-dimensional structural diagram of the upper guide mechanism and the lower guide mechanism of the plastic-lined composite pipe threading guide device provided by the present invention when they are in an open state;

[0023] Figure 3 A second three-dimensional structural diagram of the upper guide mechanism and the lower guide mechanism of the plastic-lined composite pipe threading guide device provided by the present invention when they are in an open state;

[0024] Figure 4 A third three-dimensional structural diagram of the upper guide mechanism and the lower guide mechanism of the plastic-lined composite pipe threading guide device provided by the present invention when they are in an open state;

[0025] Figure 5 A first three-dimensional structural diagram of the upper guide mechanism and the lower guide mechanism of the plastic-lined composite pipe threading guide device provided by the present invention when they are in a closed state;

[0026] Figure 6 A second three-dimensional structural diagram of the upper guide mechanism and the lower guide mechanism of the plastic-lined composite pipe threading guide device provided by the present invention when they are in a closed state;

[0027] Figure 7 This is a schematic structural diagram of the lower guide support in the plastic-lined composite pipe threading guide device provided by the present invention.

[0028] Description of the accompanying drawings: 100, plastic-lined composite pipe threading guide device; 1, guide frame; 2, first linear telescopic drive component; 3, first crossbeam; 4, first horizontal guide rail; 5, first locking slide block; 6, upper base; 7, upper guide support; 8, upper outer clamp support; 9, upper guide support plate; 10, first connecting beam; 11, first vertical slide block; 12, first vertical guide rail; 13, second linear telescopic drive component; 14, second crossbeam; 15, second horizontal guide rail; 16, second locking slide block; 17, lower base; 18, lower guide support; 19, Lower outer clamp support; 20, lower guide support plate; 21, second connecting beam; 22, second vertical slider; 23, third linear telescopic drive component; 24, third cross beam; 25, third horizontal guide rail; 26, third locking slider; 27, upper mounting plate; 28, upper guide support; 29, connecting plate; 30, third vertical slider; 31, second vertical guide rail; 32, support plate; 33, lower mounting plate; 34, strip block; 35, lower guide support; 200, frame; 300, steel pipe; 400, pull rod; 500, inner clamp; 600, outer clamp. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide a plastic-lined composite pipe threading guide device and a use method, which realizes automated guidance, achieves the purpose of saving labor costs, improving production efficiency, and reducing production safety risks.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-Figure 7As shown, this embodiment provides a plastic-lined composite pipe threading guide device 100, including a guide frame 1, a first linear telescopic drive component 2, a second linear telescopic drive component 13, an upper guide mechanism and a lower guide mechanism, the guide frame 1 is used to be arranged on one side of a pipe drawing machine, a plurality of steel pipes 300 are arranged side by side on a frame 200 of the pipe drawing machine, a pull rod 400 is arranged in each steel pipe 300, the front end of the pull rod 400 is provided with an external thread, a threaded hole is provided on an inner clamp 500, and the inner clamp 500 is provided with a threaded hole. It is threadedly connected to the front end of the pull rod 400, and the inner clamp 500 includes a conical section, a cylindrical section and a frustum section which are sequentially connected from front to back, the big end of the conical section is connected to the front end of the cylindrical section, and the big end of the frustum section is connected to the rear end of the cylindrical section; an outer clamp 600 is provided on the sliding sleeve of the pull rod 400, and the outer clamp 600 includes a cylindrical section and a conical barrel section which are sequentially connected from front to back, the big end of the conical barrel section is connected to the rear end of the cylindrical section, and the conical barrel section is used to axially limit the end of the inner liner plastic pipe extending into the outer clamp 600.

[0033] The upper guide mechanism includes an upper base 6, a plurality of upper guide supports 7 with openings facing downward, and a plurality of upper external clamp supports 8 with openings facing downward. The upper end of the first linear telescopic drive component 2 is installed on the upper part of the guide frame 1. The first linear telescopic drive component 2 is used to drive the upper base 6 to reciprocate in the vertical direction. The plurality of upper guide supports 7 are sequentially arranged at the lower part of the upper base 6 along the length direction of the upper base 6. The plurality of upper external clamp supports 8 are sequentially arranged at the lower part of the upper base 6 along the length direction of the upper base 6. Each upper external clamp support 8 is located on one side of an upper guide support 7 close to the pipe drawing machine. The first linear telescopic drive component 2 is used to drive the upper base 6 and the upper guide support 7 and the upper external clamp support 8 installed at the lower part of the upper base 6 to move up and down.

[0034] The lower guide mechanism includes a lower base 17, a plurality of lower guide supports 18 with openings facing upward, and a plurality of lower outer clamp supports 19 with openings facing upward. The lower end of the second linear telescopic drive component 13 is installed on the lower part of the guide frame 1. The second linear telescopic drive component 13 is used to drive the lower base 17 to reciprocate in the vertical direction. A plurality of lower guide supports 18 are sequentially arranged on the upper part of the lower base 17 along the length direction of the lower base 17. The lower guide supports 18 correspond to the upper guide supports 7 one by one. A lower guide support 18 is connected to an upper guide support 7 to form a guide sleeve. The cross-sectional area of ​​the center hole of the guide sleeve decreases successively from the end away from the tube drawing machine to the end close to the tube drawing machine. Each guide sleeve is used to accommodate an inner clamp 500 at the front end of a pull rod 400 of the tube drawing machine.

[0035] Specifically, the cross-section of the center hole of the guide sleeve is circular, and the center hole of the guide sleeve includes a first conical hole and a second conical hole connected in sequence from front to back, the diameter of the small end of the first conical hole is the same as the diameter of the large end of the second conical hole, the cone angle of the first conical hole is greater than the cone angle of the second conical hole, and the lining plastic tube first passes through the first conical hole with a larger cone angle, and then passes through the second conical hole with a smaller cone angle, thereby improving the guiding and centering effects.

[0036] A plurality of lower outer clamp supports 19 are sequentially arranged at the upper part of the lower base 17 along the length direction of the lower base 17, and each lower outer clamp support 19 is located on the side of a lower guide support 18 close to the pipe drawing machine. The second linear telescopic driving component 13 is used to drive the lower base 17 and the lower guide support 18 and the lower outer clamp support 19 installed on the upper part of the lower base 17 to move up and down. The lower outer clamp support 19 corresponds to the upper outer clamp support 8 one by one, and a lower outer clamp support 19 is connected with an upper outer clamp support 8 to form a clamping sleeve. The central axis of the central hole of each clamping sleeve is colinearly arranged with the central axis of the central hole of a guide sleeve. Each clamping sleeve is used to clamp and position the outer clamp 600 slidably sleeved on a pull rod 400 of the pipe drawing machine. Specifically, the clamping sleeve is used to clamp the cylindrical section of the outer clamp 600.

[0037] Specifically, the cross section of the center hole of the clamping sleeve is circular, and the cross-sectional area of ​​the center hole of the clamping sleeve is consistent from front to back, that is, the center hole of the clamping sleeve is a circular hole.

[0038] In order to improve the guiding effect, the upper guiding mechanism in this embodiment also includes a plurality of upper guiding support plates 9 with openings facing downwards, each of which is fixed to one end of an upper guiding support 7 away from the pipe drawing machine; the lower guiding mechanism also includes a plurality of lower guiding support plates 20 with openings facing upwards, each of which is fixed to one end of a lower guiding support 18 away from the pipe drawing machine, and a lower guiding support plate 20 and an upper guiding support plate 9 are connected to form a bell-mouth sleeve, and the central axis of the central hole of each bell-mouth sleeve is arranged in line with the central axis of the central hole of a guide sleeve, and the cross-sectional area of ​​the central hole of the bell-mouth sleeve decreases from the end away from the guide sleeve to the end close to the guide sleeve. By arranging the bell-mouth sleeve at the front end of the guide sleeve, the convenience of centering the inner liner plastic pipe and the inner clamp 500 is further improved.

[0039] Specifically, the cross section of the center hole of the bell-mouth sleeve is circular, the large end of the center hole of the bell-mouth sleeve is connected to the large end of the first conical hole, and the cone angle of the center hole of the bell-mouth sleeve is the same as the cone angle of the first conical hole.

[0040] In order to facilitate disassembly, assembly and replacement of the upper base 6 and the upper guide support 7 and the upper external clamp support 8 installed on the upper base 6, the upper guide mechanism in this embodiment also includes a first crossbeam 3, a first horizontal guide rail 4 and a plurality of first locking sliders 5. The lower end of the first linear telescopic drive component 2 is connected to the upper part of the first crossbeam 3, and both ends of the first crossbeam 3 are slidably installed on the guide frame 1. The first horizontal guide rail 4 is arranged at the lower part of the first crossbeam 3. A plurality of first locking sliders 5 are sequentially arranged at the upper part of the upper base 6 along the length direction of the upper base 6. Each first locking slider 5 is slidably installed at the lower part of the first horizontal guide rail 4. The first locking slider 5 is locked on the first horizontal guide rail 4, so that the upper base 6 and the first horizontal guide rail 4 can be fixed.

[0041] In order to make the movement of the first crossbeam 3 more stable, the upper guide mechanism in this embodiment also includes two first sliding assemblies respectively arranged at both ends of the first crossbeam 3, the first sliding assembly includes a first connecting beam 10 arranged at one end of the first crossbeam 3 and first vertical sliders 11 respectively arranged at the front and rear ends of the first connecting beam 10; two guide rail groups are symmetrically arranged inside the guide frame 1, each guide rail group includes two first vertical guide rails 12, and the two first vertical sliders 11 of each first sliding assembly are respectively slidably installed on the two first vertical guide rails 12 of one guide rail group.

[0042] In order to facilitate disassembly, assembly and replacement of the lower base 17 and the lower guide support 18 and the lower outer clamp support 19 installed on the lower base 17, the lower guide mechanism in this embodiment also includes a second cross beam 14, a second horizontal guide rail 15 and a plurality of second locking sliders 16. The upper end of the second linear telescopic drive component 13 is connected to the lower part of the second cross beam 14, and both ends of the second cross beam 14 are slidably installed on the guide frame 1. The second horizontal guide rail 15 is arranged on the upper part of the second cross beam 14. A plurality of second locking sliders 16 are sequentially arranged on the lower part of the lower base 17 along the length direction of the lower base 17. Each second locking slider 16 is slidably installed on the upper part of the second horizontal guide rail 15. The second locking slider 16 is locked on the second horizontal guide rail 15, so that the lower base 17 and the second horizontal guide rail 15 can be fixed.

[0043] For different types of lined plastic pipes, inner clamps 500 and outer clamps 600 of corresponding sizes need to be used, and matching upper guide supports 7, upper outer clamp supports 8, lower guide supports 18 and lower outer clamp supports 19 need to be replaced. When performing the replacement operation, the first locking slide block 5 is made to be in a slidable state, and multiple first locking slide blocks 5 are all slid out from one side of the first horizontal guide rail 4, thereby realizing the removal of the initial upper base 6 from the first horizontal guide rail 4, and then another first locking slide block 5 of the upper base 6 having a matching upper guide support 7 and an upper outer clamp support 8 is installed on the first horizontal guide rail 4, and after adjusting the position of the upper base 6, the first locking slide block 5 is in a locked state; the second locking slide block 16 is made to be in a slidable state, and multiple second locking slide blocks 16 are all slid out from one side of the second horizontal guide rail 15, thereby realizing the removal of the initial lower base 17 from the second horizontal guide rail 15, and then another second locking slide block 16 of the lower base 17 having a matching lower guide support 18 and a lower outer clamp support 19 is installed on the second horizontal guide rail 15, and after adjusting the position of the lower base 17, the second locking slide block 16 is in a locked state.

[0044] In this embodiment, the upper base 6 and the first cross beam 3 are connected by a guide rail slider structure, and the lower base 17 and the second cross beam 14 are connected by a guide rail slider structure. By replacing the upper base 6 and the lower base 17 as a whole, the plastic lining pipes with different diameters can be replaced, which simplifies the replacement process and improves the working efficiency.

[0045] In order to make the second cross beam 14 move more smoothly, the lower guide mechanism in this embodiment also includes two second sliding components respectively arranged at both ends of the second cross beam 14, the second sliding component includes a second connecting beam 21 arranged at one end of the second cross beam 14 and second vertical sliders 22 respectively arranged at the front and rear ends of the second connecting beam 21, and the two second vertical sliders 22 of each second sliding component are respectively slidably installed on the two first vertical guide rails 12 of a guide rail group.

[0046] In order to ensure smooth alignment of the outer clamp 600 and the steel pipe 300 during the pipe threading process of the pipe drawing machine, the present embodiment also includes a third linear telescopic drive component 23, an upper guide mechanism and a lower guide mechanism. The upper guide mechanism includes an upper mounting plate 27 and a plurality of upper guide supports 28 with openings facing downward. The upper end of the third linear telescopic drive component 23 is mounted on the upper part of the guide frame 1 close to one end of the pipe drawing machine. The third linear telescopic drive component 23 is used to drive the upper mounting plate 27 to reciprocate in the vertical direction. The plurality of upper guide supports 28 are sequentially arranged at the lower part of the upper mounting plate 27 along the length direction of the upper mounting plate 27; the lower guide mechanism includes a lower mounting plate 33 and a plurality of lower guide supports 35 with openings facing upward. 33 is used to be arranged at the upper part of the front end of the frame 200 of the pipe drawing machine. A plurality of lower guide supports 35 are sequentially arranged at the upper part of the lower mounting plate 33 along the length direction of the lower mounting plate 33. The lower guide supports 35 correspond to the upper guide supports 28 one by one. After a lower guide support 35 is docked with an upper guide support 28, a guide sleeve is formed. The cross-sectional area of ​​the center hole of the guide sleeve decreases from the end close to the guide frame 1 to the end far from the guide frame 1. The central axis of the center hole of each guide sleeve is collinearly arranged with the central axis of the center hole of a guide sleeve. The guide sleeve is used to guide the outer clamp 600 and the inner lining plastic pipe so that the outer clamp 600 and the inner lining plastic pipe can be smoothly aligned with the steel pipe 300. Specifically, the cross-sectional area of ​​the center hole of the guide sleeve is circular.

[0047] The present embodiment also includes a controller, and the first linear telescopic drive component 2, the second linear telescopic drive component 13 and the third linear telescopic drive component 23 are all connected to the controller, so that it is convenient to control the operation of the first linear telescopic drive component 2, the second linear telescopic drive component 13 and the third linear telescopic drive component 23 through the controller.

[0048] In this specific embodiment, the first linear telescopic driving component 2, the second linear telescopic driving component 13 and the third linear telescopic driving component 23 are all pneumatic cylinders, electric cylinders or hydraulic cylinders.

[0049] In order to facilitate disassembly, assembly and replacement of the upper mounting plate 27 and the upper guide support 28 mounted on the upper mounting plate 27, the upper guide mechanism in this embodiment also includes a third cross beam 24, a third horizontal guide rail 25 and a plurality of third locking sliders 26. The lower end of the third linear telescopic drive component 23 is connected to the upper part of the third cross beam 24, and both ends of the third cross beam 24 are slidably mounted on the guide frame 1. The third horizontal guide rail 25 is arranged at the lower part of the third cross beam 24. A plurality of third locking sliders 26 are sequentially arranged at the upper part of the upper mounting plate 27 along the length direction of the upper mounting plate 27. Each third locking slider 26 is slidably mounted on the lower part of the third horizontal guide rail 25. The third locking slider 26 is locked on the third horizontal guide rail 25, so that the upper mounting plate 27 and the third horizontal guide rail 25 can be fixed.

[0050] In order to facilitate disassembly, assembly and replacement of the lower mounting plate 33 and the lower guide support 35 installed on the lower mounting plate 33, the lower guide mechanism in this embodiment also includes a support plate 32 and a limit pin. The support plate 32 is used to be fixed to the upper part of the front end of the frame 200 of the pipe drawing machine. The upper part of the support plate 32 is provided with a strip groove, and the lower part of the lower mounting plate 33 is provided with a strip block 34. The strip block 34 is slidably installed in the strip groove. The support plate 32 and the strip block 34 are both provided with through holes for passing the limit pin. The limit pin is passed through the support plate 32 and the strip block 34. The axial direction of the limit pin is perpendicular to the length direction of the strip block 34, thereby fixing the lower mounting plate 33 and the support plate 32.

[0051] In order to make the third cross beam 24 move more smoothly, the upper guide mechanism in this embodiment also includes two third sliding assemblies respectively arranged at both ends of the third cross beam 24, the third sliding assembly includes a connecting plate 29 arranged at one end of the third cross beam 24 and a third vertical slider 30 arranged on the connecting plate 29, and two second vertical guide rails 31 are symmetrically arranged on the rear side of the guide frame 1, and the two third vertical sliders 30 are respectively slidably installed on the two second vertical guide rails 31.

[0052] For different types of lined plastic pipes, inner clamps 500 and outer clamps 600 of corresponding sizes need to be used, and matching upper guide supports 28 and lower guide supports 35 need to be replaced. When performing the replacement operation, the third locking slide block 26 is made to be in a slidable state, and multiple third locking slide blocks 26 are all slid out from one side of the third horizontal guide rail 25, thereby realizing that the initial upper mounting plate 27 is removed from the third horizontal guide rail 25, and then the third locking slide block 26 of another upper mounting plate 27 with a matching upper guide support 28 is installed on the third horizontal guide rail 25, and after adjusting the position of the upper mounting plate 27, the third locking slide block 26 is in a locked state; the limit pin is removed from the support plate 32 and the strip block 34, and the initial lower mounting plate 33 is pulled out from one side of the support plate 32, and then the strip block 34 of another lower mounting plate 33 with a matching lower guide support 35 is slidably installed in the strip groove of the support plate 32, and after adjusting the position of the lower mounting plate 33, the limit pin is inserted into the support plate 32 and the strip block 34 of the lower mounting plate 33.

[0053] This embodiment also provides a method for using the pipe threading guide device 100 based on the plastic-lined composite pipe, comprising the following steps:

[0054] Step 1. When the guiding action is performed, the first linear telescopic drive component 2 and the second linear telescopic drive component 13 respectively drive the upper guiding mechanism and the lower guiding mechanism to move in the vertical direction, so that each lower guiding support 18 is docked with an upper guiding support 7 to form a guiding sleeve, and the central axis of the central hole of each guiding sleeve is colinearly arranged with the central axis of a pull rod 400 of the tube drawing machine, and the inner clamp 500 at the front end of each pull rod 400 of the tube drawing machine is located in a guiding sleeve; and each lower outer clamp support 19 is docked with an upper outer clamp support 8 to form a clamping sleeve, and each clamping sleeve clamps and positions the outer clamp 600 slidably mounted on a pull rod 400 of the tube drawing machine.

[0055] Step 2: Cut the outer wall of the rear end of each liner plastic tube to form a tapered plug-in section, the cross-sectional area of ​​the tapered plug-in section decreases successively from the end farthest from the outer clamp 600 to the end close to the outer clamp 600. Each liner plastic tube is transferred to a guide sleeve by the previous process and is sleeved on the outside of an inner clamp 500, that is, the previous process provides a thrust toward the inner clamp 500 to the liner plastic tube, the inner clamp 500 extends into the interior of the liner plastic tube, the inner wall of the liner plastic tube fits with the outer wall of the inner clamp 500, and the tapered plug-in section is tightly inserted into an outer clamp 600, thereby completing the clamping of the liner plastic tube by the inner clamp 500 and the outer clamp 600.

[0056] Step three, after the guiding action is performed, the first linear telescopic drive component 2 and the second linear telescopic drive component 13 respectively drive the upper guiding mechanism and the lower guiding mechanism to move in the vertical direction, so that the corresponding lower guiding support 18 and the upper guiding support 7 are separated, and the corresponding lower outer clamp support 19 and the upper outer clamp support 8 are separated.

[0057] After that, the tube drawing machine performs the tube drawing work, and the third linear telescopic drive component 23 drives the upper guide mechanism to move downward until each upper guide support 28 is docked with a lower guide support 35 to form a guide sleeve. The tube drawing machine works, so that the pull rod 400 drives the clamped inner lining plastic tube to move backward. In this process, the guide sleeve guides and centers the outer clamp 600 and the inner lining plastic tube. Under the pull of the pull rod 400, the inner lining plastic tube enters the steel pipe 300 and fits with it. The pull rod 400 pulls the rear end of the inner lining plastic tube from the rear end of the steel pipe 300 to the outside, and cuts the part of the inner lining plastic tube that protrudes from the rear end. When the tube drawing work is completed, the third linear telescopic drive component 23 drives the upper guide mechanism to move upward, so that the upper guide support 28 is separated from the lower guide support 35, so as to facilitate the transfer of the completed lining plastic tube to the next process.

[0058] In this embodiment, the inner lining plastic pipe and the inner clamp 500 of the pipe drawing machine are conveniently aligned by the bell-mouth sleeve and the guide sleeve, and the outer clamp 600 of the pipe drawing machine is clamped and positioned by the clamping sleeve, so that the tapered plug-in section of the inner lining plastic pipe can be inserted tightly into the outer clamp 600. At the same time, the inner lining plastic pipe is fitted on the outside of the inner clamp 500, thereby completing the clamping of the inner lining plastic pipe by the inner clamp 500 and the outer clamp 600. It can be seen that the pipe threading guide device 100 and the use method of the plastic-lined composite pipe in this embodiment realize automatic guidance, achieve the purpose of saving labor costs, improving production efficiency, and reducing production safety risks, and solve the problems of low efficiency, large error, and poor safety caused by the manual method of aligning and guiding the inner lining plastic pipe with the steel pipe 300 in the existing plastic-lined composite pipe production line.

[0059] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A pipe threading guide device for a plastic-lined composite pipe, characterized in that: The invention comprises a guide frame, a first linear telescopic drive component, a second linear telescopic drive component, an upper guide mechanism and a lower guide mechanism, wherein the guide frame is used to be arranged on one side of the pipe drawing machine, the upper guide mechanism comprises an upper base, a plurality of upper guide supports with openings facing downwards and a plurality of upper outer clamp supports with openings facing downwards, the upper end of the first linear telescopic drive component is mounted on the upper part of the guide frame, the first linear telescopic drive component is used to drive the upper base to reciprocate in the vertical direction, and the plurality of upper guide supports are arranged along the length of the upper base The guide frame is provided with a plurality of upper outer clamp supports in sequence at the lower part of the upper base along the length direction of the upper base, and each of the upper outer clamp supports is located on a side of the upper guide support close to the pipe drawing machine; the lower guide mechanism comprises a lower base, a plurality of lower guide supports with openings facing upward, and a plurality of lower outer clamp supports with openings facing upward, the lower end of the second linear telescopic drive component is installed at the lower part of the guide frame, and the second linear telescopic drive component is used to drive the lower base to move in the vertical direction The guide brackets are provided on the upper part of the lower base in sequence along the length direction of the lower base, and the lower guide brackets correspond to each other one by one. A guide sleeve is formed after a lower guide bracket is docked with an upper guide bracket. The cross-sectional area of ​​the center hole of the guide sleeve decreases from the end away from the tube drawing machine to the end close to the tube drawing machine. Each guide sleeve is used to accommodate an inner clamp at the front end of a pull rod of the tube drawing machine. A plurality of lower outer clamp brackets are provided along the length direction of the lower base. The lower outer clamp supports are arranged in the upper part of the lower base in the degree direction, each of the lower outer clamp supports is located on the side of a lower guide support close to the pipe drawing machine, the lower outer clamp supports correspond to the upper outer clamp supports one by one, and a clamping sleeve is formed after a lower outer clamp support is connected with an upper outer clamp support, and the central axis of the central hole of each clamping sleeve is colinear with the central axis of the central hole of a guide sleeve, and each clamping sleeve is used to clamp and position an outer clamp slidably sleeved on a pull rod of the pipe drawing machine.

2. The plastic-lined composite pipe threading guide device according to claim 1, characterized in that: The upper guide mechanism also includes a plurality of upper guide support plates with openings facing downward, each of which is fixed to one end of the upper guide support away from the pipe drawing machine; the lower guide mechanism also includes a plurality of lower guide support plates with openings facing upward, each of which is fixed to one end of the lower guide support away from the pipe drawing machine, and a lower guide support plate and an upper guide support plate are connected to form a bell-mouth sleeve, and the central axis of the central hole of each bell-mouth sleeve is colinear with the central axis of the central hole of a guide sleeve, and the cross-sectional area of ​​the central hole of the bell-mouth sleeve decreases successively from the end away from the guide sleeve to the end close to the guide sleeve.

3. The plastic-lined composite pipe threading guide device according to claim 1, characterized in that: The upper guide mechanism also includes a first crossbeam, a first horizontal guide rail and a plurality of first locking sliders. The lower end of the first linear telescopic drive component is connected to the upper portion of the first crossbeam. Both ends of the first crossbeam are slidably mounted on the guide frame. The first horizontal guide rail is arranged at the lower portion of the first crossbeam. A plurality of the first locking sliders are sequentially arranged at the upper portion of the upper base along the length direction of the upper base, and each of the first locking sliders is slidably mounted at the lower portion of the first horizontal guide rail.

4. The plastic-lined composite pipe threading guide device according to claim 3, characterized in that: The upper guiding mechanism also includes two first sliding assemblies respectively arranged at the two ends of the first cross beam, the first sliding assembly includes a first connecting beam arranged at one end of the first cross beam and first vertical sliding blocks respectively arranged at the front and rear ends of the first connecting beam; two guide rail groups are symmetrically arranged inside the guide frame, each of the guide rail groups includes two first vertical guide rails, and the two first vertical sliding blocks of each first sliding assembly are respectively slidably installed on the two first vertical guide rails of one guide rail group.

5. The plastic-lined composite pipe threading guide device according to claim 4, characterized in that: The lower guide mechanism also includes a second cross beam, a second horizontal guide rail and a plurality of second locking sliders. The upper end of the second linear telescopic drive component is connected to the lower portion of the second cross beam. Both ends of the second cross beam are slidably mounted on the guide frame. The second horizontal guide rail is arranged on the upper portion of the second cross beam. A plurality of second locking sliders are sequentially arranged on the lower portion of the lower base along the length direction of the lower base. Each of the second locking sliders is slidably mounted on the upper portion of the second horizontal guide rail.

6. The plastic-lined composite pipe threading guide device according to claim 5, characterized in that: The lower guiding mechanism also includes two second sliding assemblies respectively arranged at the two ends of the second cross beam, the second sliding assembly includes a second connecting beam arranged at one end of the second cross beam and second vertical sliding blocks respectively arranged at the front and rear ends of the second connecting beam, and the two second vertical sliding blocks of each second sliding assembly are respectively slidably installed on the two first vertical guide rails of one guide rail group.

7. The plastic-lined composite pipe threading guide device according to claim 1, characterized in that: The third linear telescopic drive component is also included, an upper guide mechanism and a lower guide mechanism, the upper guide mechanism includes an upper mounting plate and a plurality of upper guide supports with openings facing downwards, the upper end of the third linear telescopic drive component is installed on the upper part of the guide frame close to one end of the pipe drawing machine, the third linear telescopic drive component is used to drive the upper mounting plate to reciprocate in the vertical direction, and the plurality of upper guide supports are sequentially arranged at the lower part of the upper mounting plate along the length direction of the upper mounting plate; the lower guide mechanism includes a lower mounting plate and a plurality of lower guide supports with openings facing upwards, the lower The mounting plate is used to be set on the upper part of the front end of the frame of the pipe drawing machine, and a plurality of lower guide supports are sequentially arranged on the upper part of the lower mounting plate along the length direction of the lower mounting plate. The lower guide supports correspond to the upper guide supports one by one, and a guide sleeve is formed after a lower guide support is docked with an upper guide support. The cross-sectional area of ​​the center hole of the guide sleeve decreases sequentially from the end close to the guide frame to the end far away from the guide frame, and the central axis of the center hole of each guide sleeve is collinear with the central axis of the center hole of a guide sleeve.

8. The plastic-lined composite pipe threading guide device according to claim 7, characterized in that: The third locking block is slidably mounted on the guide frame, and the third locking block is installed in a sliding manner along the length direction of the upper mounting plate, and each of the third locking blocks is slidably mounted on the lower portion of the third horizontal guide rail; the lower guide mechanism also includes a support plate and a limit pin, the support plate is used to be fixed to the upper portion of the frame front end of the pipe drawing machine, the upper portion of the support plate is provided with a strip groove, the lower portion of the lower mounting plate is provided with a strip block, the strip block is slidably mounted in the strip groove, and the limit pin is penetrated through the support plate and the strip block, thereby fixing the lower mounting plate to the support plate.

9. The plastic-lined composite pipe threading guide device according to claim 8, characterized in that: The upper guide mechanism also includes two third sliding assemblies respectively arranged at both ends of the third cross beam, the third sliding assembly includes a connecting plate arranged at one end of the third cross beam and a third vertical slider arranged on the connecting plate, and two second vertical guide rails are symmetrically arranged on the rear side of the guide frame, and the two third vertical sliders are respectively slidably installed on the two second vertical guide rails.

10. A method for using the plastic-lined composite pipe threading guide device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: When the guiding action is performed, the first linear telescopic drive component and the second linear telescopic drive component respectively drive the upper guiding mechanism and the lower guiding mechanism to move in the vertical direction, so that each of the lower guiding supports is docked with one of the upper guiding supports to form a guiding sleeve, and the central axis of the central hole of each guiding sleeve is colinearly arranged with the central axis of one of the pulling rods of the tube drawing machine, and the inner clamps at the front ends of each of the pulling rods of the tube drawing machine are located in one of the guiding sleeves; and each of the lower outer clamp supports is docked with one of the upper outer clamp supports to form a clamping sleeve, and each clamping sleeve clamps and positions the outer clamp slidably sleeved on one of the pulling rods of the tube drawing machine; Step 2: Cut the outer wall of the rear end of each inner lining plastic tube to form a tapered plug-in section, the cross-sectional area of ​​the tapered plug-in section decreases from the end away from the outer clamp to the end close to the outer clamp, each inner lining plastic tube is transferred to one of the guide sleeves by the previous process and sleeved on the outside of one of the inner clamps, the inner wall of the inner lining plastic tube fits the outer wall of the inner clamp, and the tapered plug-in section is tightly inserted into one of the outer clamps, thereby completing the clamping of the inner clamp and the outer clamp on the inner lining plastic tube; Step three, after the guiding action is performed, the first linear telescopic drive component and the second linear telescopic drive component respectively drive the upper guiding mechanism and the lower guiding mechanism to move in the vertical direction, so that the corresponding lower guiding support and the upper guiding support are separated, and the corresponding lower outer clamp support and the upper outer clamp support are separated.

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