PE bent pipe machining device

Abstract

The utility model provides a PE bent pipe machining device. The PE bent pipe machining device comprises an elbow mold, a base, a butt joint assembly and a plurality of clamping assemblies. The elbow mold is fixedly arranged at an outlet of the rubber extruder; the base is used for being arranged on the outer side of the rubber extruder in parallel, a positioning seat is connected to the base in a sliding mode, and the positioning seat is in transmission connection with a linear driving component; a main shaft extending upwards is arranged on the positioning seat and is in transmission connection with a rotation driving component; the butt joint assembly is arranged on the outer side of the main shaft and connected with the main shaft through a fixing arm, and a first locking structure is arranged between the butt joint assembly and the fixing arm. The multiple clamping assemblies are arranged around the main shaft at intervals, and each clamping assembly is connected with the main shaft through a swing arm. The swing arm is in transmission connection with a first swing driving component, and a second locking structure is arranged between the clamping assembly and the swing arm. The PE bent pipe machining device can adapt to machining of PE bent pipes with different specification requirements, and efficient production operation of the PE bent pipes is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of PE pipe bending processing, and specifically relates to a PE pipe bending processing device. Background Art

[0002] PE elbow is a pipe made of polyethylene (PE) material, and its main characteristics are large bending angle and large radius. Specifically, PE elbow usually refers to a pipe with an angle greater than or equal to 90 degrees and a radius greater than or equal to twice the diameter of the bend.

[0003] In the existing PE elbow processing process, after the elbow is discharged from the rubber extruder and initially shaped, it will be pulled by a traction device to form a tube structure with a circular arc cross-section. Among them, the movement trajectory of the traction device is set according to the processing specifications of the PE elbow (bending angle, etc.) to obtain the desired finished product.

[0004] The inventors found that during the production process of PE elbows, a supporting device is required to support and shape the formed PE elbows. The common supporting device is a plurality of supporting platforms arranged on the lower side of the moving trajectory of the PE elbow and at intervals along the bending trajectory of the PE elbow; however, the supporting platforms cannot move with the traction device. Therefore, when producing PE elbows with different bending angles, the number and position of the supporting platforms need to be manually controlled by on-site staff, which causes a technical defect of reduced production efficiency and is not conducive to the actual production process.

[0005] That is to say, there is an urgent need in the prior art for an adjustable processing device that can adapt to PE elbows of different specifications to achieve efficient production operations of PE elbows. Utility Model Content

[0006] The embodiment of the present application provides a PE elbow processing device, which is intended to adapt to the processing of PE elbows with different specifications and realize efficient production operations of PE elbows.

[0007] To achieve the above objectives, the technical solution adopted in this application is:

[0008] Provided is a PE pipe bending processing device, comprising:

[0009] An elbow mold is fixedly mounted at the outlet of a rubber extruder to receive the rubber discharged from the rubber extruder, so that the outer peripheral wall of the rubber fits against the inner peripheral wall of the elbow mold under the action of internal high-pressure gas to form a tubular structure; the opening of the elbow mold is defined to face forward;

[0010] A base is arranged in parallel on the outer side of the rubber extruder in the left-right direction, a positioning seat is slidably connected to the base in the left-right direction, and a linear driving member is connected to the positioning seat in a transmission manner; the positioning seat has a main shaft extending upward, the main shaft is connected to the upper side of the positioning seat in a vertical direction, and the main shaft is connected to the rotation driving member in a transmission manner;

[0011] a docking assembly disposed outside the main shaft and connected to the main shaft via a fixed arm; the docking assembly is movable along the length of the fixed arm to increase or decrease the distance between the docking assembly and the main shaft, enabling the docking assembly to connect with the open end of the elbow mold to form a sealed space; and a first locking structure is further provided between the docking assembly and the fixed arm; and

[0012] A plurality of clamping assemblies are arranged around the main shaft at intervals on the outside of the main shaft and are connected to the main shaft through a swing arm; the swing arm is hinged to the main shaft and is transmission-connected to a first swing driving component so that the clamping assembly can avoid the traction track setting of the PE elbow; and the clamping assembly can move along the length direction of the swing arm to increase the distance between the clamping assembly and the main shaft, so that the clamping assembly can swing with the swing arm to connect with the PE elbow, and each of the clamping assemblies has a second locking structure with the corresponding swing arm.

[0013] In a possible implementation, the elbow mold includes:

[0014] A mounting plate, which has an annular structure and is used to be connected to the output end face of the rubber extruder;

[0015] An inner sleeve, fixedly connected to a side of the mounting plate facing away from the rubber extruder;

[0016] An outer sleeve is fixedly connected to a side of the mounting plate facing away from the extruder, is sleeved on the outer periphery of the inner sleeve, and one end facing away from the mounting plate is connected to the inner sleeve, so that a cavity structure is formed between the outer sleeve and the inner sleeve;

[0017] The outer sleeve has an upward-opening water inlet and a downward-opening water outlet; the water inlet is connected to a water inlet component, and the water inlet component is used to communicate with a water source to inject water into the cavity structure and reduce the temperature of the inner sleeve; the water outlet is connected to a drain pipe, and the drain pipe extends downward;

[0018] In addition, the water inlet component is connected to a water spray component through a hose; when the docking component pulls the PE elbow to exit the elbow mold, the water spray component can be pulled toward the PE elbow to spray water toward the outer wall of the PE elbow.

[0019] In a possible implementation, the PE pipe bending processing device further includes:

[0020] The recovery component is fixed on the lower side of the outer sleeve and has a hollow interior and an upward opening structure to recover the liquid discharged through the drain pipe; and a filter screen is provided on the open surface of the recovery component to limit the passage of impurities.

[0021] In one possible implementation, the docking component includes:

[0022] an alignment plate, slidably disposed on the fixed arm along the length direction of the fixed arm, and the first locking structure is disposed between the alignment plate and the fixed arm;

[0023] A docking sleeve is provided on the side of the alignment plate facing away from the fixed arm and is connected to the alignment plate via a connecting arm; the docking sleeve is hollow inside and open facing away from the fixed arm, and a plurality of pre-set holes are provided on its inner bottom surface; at least one pressure relief hole is provided on the outer peripheral wall of the docking sleeve, and the pressure relief hole passes through the open surface of the docking sleeve along the axial direction of the docking sleeve; and

[0024] A reinforcement sleeve is coaxially sleeved on the outer circumference of the docking sleeve, and its inner circumference is in contact with the outer circumference of the docking sleeve; the end of the reinforcement sleeve facing the fixed arm has a limiting ring extending inward, the limiting ring is in contact with the end surface of the docking sleeve facing the fixed arm, and the limiting ring is provided with a plurality of threaded holes that are in one-to-one correspondence with the plurality of reserved holes;

[0025] Wherein, each of the threaded holes is threadedly connected with a connecting bolt; the connecting bolt is used to enter the docking tube through the corresponding reserved hole and be connected to the end of the PE elbow.

[0026] In a possible implementation, the first locking structure includes:

[0027] Two groups of connecting rods are respectively arranged on the upper and lower sides of the fixed arm and are connected to the alignment plate; each group of connecting rods includes a plurality of connecting rods arranged at intervals along the length direction of the fixed arm, and each connecting rod extends toward the fixed arm to the side of the fixed arm facing away from the alignment plate; and

[0028] a support plate disposed on a side of the fixed arm facing away from the alignment plate, and having two groups of through holes arranged in parallel in the vertical direction and corresponding one-to-one with the two groups of connecting rods; each group of through holes includes a plurality of through holes spaced apart along the length direction of the fixed arm and corresponding one-to-one with the corresponding plurality of connecting rods;

[0029] Wherein, each of the connecting rods is suitable for passing through the corresponding through hole and extending out, and the extending end thereof is threadedly connected with a nut for abutting against the support plate.

[0030] In one possible implementation, the clamping assembly includes:

[0031] a sliding member, slidably connected to the swing arm along the length direction of the swing arm, and the second locking structure is provided between the sliding member and the swing arm;

[0032] an upper clamping plate, disposed on the lower side of the sliding member and detachably connected to the sliding member, with a thickness direction thereof being parallel to the left-right direction; and

[0033] A lower splint is provided on the lower side of the upper splint, with a thickness direction thereof being parallel to the left-right direction, and one end of the lower splint is hinged to the upper splint along the left-right direction;

[0034] In which, the vertical cross-section of the upper splint is an arc-shaped structure with the opening facing downward, and the vertical cross-section of the lower splint is an arc-shaped structure with the opening facing upward; a gap is formed between the swinging end of the upper splint and one of the swinging ends of the lower splint, and a second swinging drive component is provided between the upper splint and the lower splint, and the second swinging drive component can drive the lower splint to swing relative to the upper splint to increase or decrease the gap.

[0035] In one possible implementation, the upper and lower clamping plates each have a plurality of protrusions, each of the protrusions extending outward in the left-right direction, and each of the protrusions has a guide hole extending radially through the corresponding arc-shaped structure; an adjustment arm is slidably connected within the guide hole, and a third locking structure is provided between the adjustment arm and the corresponding protrusion;

[0036] Wherein, when the third locking structure connects the adjusting arm and the protrusion, one end of the adjusting arm is suitable for abutting against the outer wall of the PE elbow.

[0037] In a possible implementation, the third locking structure includes:

[0038] a locking nut, fixedly connected to the protrusion and axially arranged toward the adjusting arm;

[0039] a plurality of positioning holes, formed on the adjusting arm and spaced apart along the length of the adjusting arm, wherein each positioning hole is adapted to be coaxially connected to the locking nut; and

[0040] A stop bolt is threadedly connected to the locking nut and is suitable for being inserted into any one of the positioning holes to limit the movement of the adjustment arm relative to the protrusion.

[0041] In a possible implementation, the sliding member adopts a sleeve structure suitable for being slidably sleeved on the swing arm, and the sliding member is slidably sleeved on the swing arm; the second locking structure includes:

[0042] a plurality of jacks, each of which is provided on the sliding member and is in communication with the interior of the sliding member; and

[0043] A plurality of fixing nuts are fixedly connected to the outer wall of the sliding member and are in one-to-one communication with the plurality of the insertion holes;

[0044] Wherein, each of the fixing nuts is threadedly connected to a retaining bolt; and the retaining bolt is used to connect with the outer wall of the swing arm through the corresponding socket to limit the sliding of the sliding member relative to the swing arm.

[0045] In the embodiment of the present application, the sealed space formed by the combination of the elbow mold and the docking assembly can realize the reception and preliminary shaping of the rubber discharged from the rubber extruder; then, by rotating the driving component to drive the main shaft to rotate, the rubber can be pulled out along an arc trajectory under the drive of the docking assembly to form a PE elbow; at the same time, the first swing driving component drives the swing arm to swing, so that the corresponding clamping assembly can be moved to connect with the PE elbow, thereby realizing support for the PE elbow.

[0046] In the above process, the positioning seat is driven to move by the linear driving component, so that the distance between the main shaft and the elbow mold can be adjusted; based on this, by adjusting the relative position of the docking assembly and the fixed arm, the relative position of each clamping assembly and the corresponding swing arm, and fixing them through the first locking structure and the second locking structure respectively, the distance between the main shaft and the elbow mold, the distance between the main shaft and the docking assembly, and the distance between the main shaft and each clamping assembly can be made equal in pairs, thereby adapting to PE elbows with different production requirements.

[0047] Compared with the prior art, the PE elbow processing device provided in this embodiment can adapt to the processing of PE elbows with different specifications and realize efficient production operations of PE elbows. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0049] Figure 1 A schematic diagram of the three-dimensional structure of a PE pipe bending processing device provided in an embodiment of the present application;

[0050] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle circle A;

[0051] Figure 3 A schematic diagram of the combined structure of the upper and lower splints used in the embodiment of the present application;

[0052] Figure 4 A schematic cross-sectional view of the second locking structure used in an embodiment of the present application;

[0053] Figure 5 A partial cross-sectional view of the upper splint used in an embodiment of the present application;

[0054] Figure 6 This is a schematic diagram of the combined structure of the fixed arm and the docking assembly used in the embodiment of the present application;

[0055] Figure 7 A schematic diagram of the combined structure of the docking assembly and the first locking structure used in an embodiment of the present application;

[0056] Figure 8 This is a schematic diagram of the exploded structure of the docking sleeve and the reinforcement sleeve used in the embodiment of the present application;

[0057] Figure 9 This is a schematic diagram of the combined structure of the elbow mold used in the embodiment of the present application;

[0058] Figure 10 This is a schematic cross-sectional view of the elbow mold used in the embodiment of the present application;

[0059] Figure 11 A schematic diagram of the structure of the recycling component used in the embodiment of the present application;

[0060] Figure 12 A schematic structural diagram of a rotation drive component used in an embodiment of the present application;

[0061] Figure 13 This is a schematic structural diagram of the linear drive component used in the embodiment of the present application;

[0062] Explanation of reference numerals: 1. elbow mold; 11. mounting plate; 12. inner sleeve; 13. outer sleeve; 131. water inlet member; 132. water spray member; 1321. hose; 14. drain pipe; 2. base; 21. positioning seat; 211. linear drive member; 22. main shaft; 221. rotation drive member; 222. fixed arm; 223. swing arm; 224. first swing drive member; 3. docking assembly; 31. alignment plate; 32. docking sleeve; 321. connecting arm; 322. reserved hole; 323. pressure relief hole; 33. reinforcement sleeve; 331. limiting ring; 332. Threaded hole; 333. Connecting bolt; 4. First locking structure; 41. Connecting rod; 411. Nut; 42. Support plate; 421. Through hole; 5. Clamping assembly; 51. Sliding member; 52. Upper clamping plate; 521. Second swing drive member; 53. Lower clamping plate; 6. Bump; 61. Guide hole; 62. Adjusting arm; 7. Third locking structure; 71. Locking nut; 72. Positioning hole; 73. Stop bolt; 8. Second locking structure; 81. Socket; 82. Fixing nut; 821. Retaining bolt; 9. Recovery part; 91. Filter; 100. Rubber extruder. DETAILED DESCRIPTION

[0063] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0064] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0065] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0067] Please also refer to Figures 1 to 13 The PE pipe bending processing device provided in this application is now described. The PE pipe bending processing device proposed in this application includes an elbow mold 1, a base 2, a docking assembly 3 and a plurality of clamping assemblies 5.

[0068] The elbow mold 1 is used to be fixedly arranged at the outlet of the rubber extruder 100 to receive the rubber discharged from the rubber extruder 100, so that the outer wall of the rubber fits against the inner wall of the elbow mold 1 under the action of the high-pressure gas inside it to form a tubular structure; it should be noted that the high-pressure gas proposed here is based on the function of the rubber extruder 100, that is, the rubber discharged by the rubber extruder 100 is tubular, and there is high-pressure gas inside the tubular structure; when such rubber enters the elbow mold 1, the high-pressure gas will cause the rubber to swell rapidly to abut the inner wall of the elbow mold 1, thereby forming a tube body structure that meets the pipe diameter requirements.

[0069] In this embodiment, for the convenience of description, the opening direction of the elbow mold 1 is defined as the front.

[0070] The base 2 is arranged in parallel on the outside of the rubber extruder 100 along the left-right direction and extends in a direction away from the rubber extruder 100 . In this embodiment, the base 2 is located on the left side of the rubber extruder 100 .

[0071] A positioning seat 21 is slidably connected to the base 2 along the left-right direction, and a linear driving component 211 is transmission-connected to the positioning seat 21 for controlling its movement.

[0072] It should be noted that the linear drive component 211 includes a rack fixed on the base 2 and extending in the left-right direction, and a motor fixed on the positioning seat 21, with the power output axis parallel to the front-back direction, and the power output end is connected to a gear meshing with the rack; when the motor is started, the gear rotates, so that the positioning seat 21 moves relative to the base 2 under the reaction force of the rack.

[0073] The positioning seat 21 has a main shaft 22 extending upward. The main shaft 22 is rotatably connected to the upper side of the positioning seat 21 along the up-down direction. The main shaft 22 is also connected to a rotation driving member 221 for controlling its rotation.

[0074] It should be noted that the rotating drive component 221 includes a first gear fixedly mounted on the outer periphery of the main shaft 22, and a second gear rotatably connected to the upper side of the positioning seat 21; the two gears are meshed with each other, so driving the latter can drive the former to rotate, and then drive the main shaft 22 to rotate; based on this, the second gear has an upward extending rod shaft, the upper end of this rod shaft is coaxially connected to the third gear, and a motor is also fixed on the other side of the upper surface of the positioning seat 21, the power output shaft of this motor is parallel to the up and down direction, and the power output end is connected to the fourth gear; wherein the third gear and the fourth gear are connected by a transmission belt, so that when the motor is started, the third gear drives the second gear to rotate through the rod shaft, thereby achieving the driving conditions for the first gear and the main shaft 22.

[0075] The docking assembly 3 is disposed outside the main shaft 22 and connected to the main shaft 22 via a fixed arm 222. Specifically, one end of the fixed arm 222 is fixedly connected to the outer peripheral wall of the main shaft 22 and extends radially outward from the main shaft 22. Furthermore, the docking assembly 3 is slidably connected to the fixed arm 222, allowing the docking assembly 3 to move along the length of the fixed arm 222, thereby increasing or decreasing the distance between the docking assembly 3 and the main shaft 22.

[0076] When the distance between the docking assembly 3 and the main shaft 22 is equal to the distance between the main shaft 22 and the elbow mold 1, the main shaft 22 is controlled to rotate by rotating the driving member 221, so that the docking assembly 3 can be connected to the open end of the elbow mold 1 under the drive of the fixed arm 222, thereby forming a sealed space to prevent gas loss and facilitate the execution of the aforementioned high-pressure gas expansion process of the rubber.

[0077] There is also a first locking structure 4 between the docking assembly 3 and the fixed arm 222; after the docking assembly 3 and the fixed arm 222 move relative to each other, the docking assembly 3 and the fixed arm 222 can be connected by the first locking structure 4 to limit the relative movement between the two.

[0078] Multiple clamping assemblies 5 are spaced apart and arranged around the main shaft 22, outside the main shaft 22, and connected to the main shaft 22 via a swing arm 223. Specifically, one end of the swing arm 223 is hinged to the main shaft 22, with the hinge axis perpendicular to the vertical direction and the length of the swing arm 223. To this end, the swing arm 223 is also drivingly connected to a first swing drive member 224. By driving the swing arm 223 with the first swing drive member 224, the corresponding clamping assemblies 5 can be positioned to avoid or coincide with the traction path of the PE elbow.

[0079] It should be noted that the first swing drive component 224 here is a cylinder fixed between the swing arm 223 and the main shaft 22; wherein the base of the cylinder and the end of the hydraulic rod are hinged to the outer wall of the main shaft 22 and the swing arm 223 respectively, and the hinge axes are parallel to each other, so that when the cylinder is started, the hydraulic rod is extended or retracted, and the swing arm 223 swings relative to the main shaft 22.

[0080] The clamping assembly 5 is slidably set on the swing arm 223 so that the clamping assembly 5 can move along the length direction of the swing arm 223, thereby increasing the distance between the clamping assembly 5 and the main shaft 22, and finally when the traction trajectory of the clamping assembly 5 and the PE elbow coincides, the clamping assembly 5 can be connected to the PE elbow.

[0081] There is a second locking structure 8 between each clamping assembly 5 and the corresponding swing arm 223; after the clamping assembly 5 and the swing arm 223 move relative to each other, the clamping assembly 5 and the swing arm 223 can be connected by the second locking structure 8 to limit the relative movement between the two.

[0082] In the embodiment of the present application, the sealed space formed by the combination of the elbow mold 1 and the docking assembly 3 can realize the reception and preliminary shaping of the rubber discharged from the rubber extruder 100; then, by rotating the driving member 221 to drive the main shaft 22 to rotate, the rubber can be pulled out along an arc trajectory under the drive of the docking assembly 3 to form a PE elbow; at the same time, the first swinging driving member 224 drives the swing arm 223 to swing, so that the corresponding clamping assembly 5 can be moved to connect with the PE elbow, thereby achieving support for the PE elbow.

[0083] In the above process, the linear driving member 211 drives the positioning seat 21 to move, and the distance between the main shaft 22 and the elbow mold 1 can be adjusted; based on this, by adjusting the relative position of the docking component 3 and the fixed arm 222, the relative position of each clamping component 5 and the corresponding swing arm 223, and fixing them respectively through the first locking structure 4 and the second locking structure 8, the distance between the main shaft 22 and the elbow mold 1, the distance between the main shaft 22 and the docking component 3, and the distance between the main shaft 22 and each clamping component 5 can be made equal in pairs, thereby adapting to PE elbows with different production requirements.

[0084] Compared with the prior art, the PE elbow processing device provided in this embodiment can adapt to the processing of PE elbows with different specifications and realize efficient production operations of PE elbows.

[0085] In some embodiments, as Figure 9 and Figure 10 As shown, the elbow mold 1 includes a mounting plate 11 , an inner sleeve 12 and an outer sleeve 13 .

[0086] The mounting plate 11 adopts an annular structure and is used to be connected to the output end face of the rubber extruder 100; the reason for this design is that the connection and disassembly between the surfaces are more convenient, so as to be suitable for replacing different elbow molds 1 for PE elbows with different pipe diameter requirements.

[0087] The inner sleeve 12 is fixedly connected to the side of the mounting plate 11 facing away from the rubber extruder 100 ; in actual use, the inner circumferential wall of the inner sleeve 12 adopts a curved tube structure that is compatible with the outer circumferential wall of the PE curved pipe.

[0088] The outer sleeve 13 is fixedly connected to the side of the mounting plate 11 facing away from the extruder, and is sleeved on the outer periphery of the inner sleeve 12, and one end facing away from the mounting plate 11 is connected to the inner sleeve 12 (during production, the inner sleeve 12 and the outer sleeve 13 can be integrally formed, and the molded part can be welded to the mounting plate 11) so that an annular cavity structure is formed between the outer sleeve 13 and the inner sleeve 12.

[0089] It should be noted that the mounting plate 11 is provided with a hole structure that is in communication with the inner sleeve 12 and is used to be in communication with the output port of the rubber extruder 100 , so as to achieve the transfer of rubber between the rubber extruder 100 and the inner sleeve 12 .

[0090] The outer sleeve 13 has an upward-facing water inlet and a downward-facing water outlet. Both the inlet and outlet are connected to the aforementioned cavity structure. The inlet is connected to a water inlet member 131, which is connected to an external water source to inject water into the cavity structure, lowering the temperature of the inner sleeve 12 and facilitating the initial molding of the rubber. The outlet is connected to a drain pipe 14, which extends downward to divert the liquid after heat exchange.

[0091] The water inlet component 131 is also connected to a water spray component 132 for people to hold by hand through a hose 1321; when the docking component pulls the PE elbow out of the elbow mold 1, the water spray component 132 can be pulled toward the PE elbow under human power to spray water toward the outer wall of the PE elbow, further enhancing the shaping effect of the initially formed elbow.

[0092] In some embodiments, as Figure 1 and Figure 11 As shown, the PE pipe bending processing device also includes a recovery part 9, which is used to be fixed on the lower side of the outer sleeve 13, and adopts a structure with a hollow interior and an upward opening to recover the liquid discharged through the drain pipe 14; in actual use, the recovered liquid can be reused after cooling to improve resource utilization efficiency.

[0093] In addition, a filter screen 91 is provided on the open surface of the recovery member 9 for limiting the passage of impurities, so as to prevent the impurities from contaminating the water source and affecting the recycling of the water source.

[0094] In some embodiments, as Figures 6 to 8 As shown, the docking assembly 3 includes an alignment plate 31 , a docking sleeve 32 and a reinforcement sleeve 33 .

[0095] The alignment plate 31 is slidably set on the fixed arm 222 along the length direction of the fixed arm 222, and the first locking structure 4 is set between the alignment plate 31 and the fixed arm 222, that is, the relative position of the alignment plate 31 and the fixed arm 222 is fixed, so that the relative position of the fixed arm 222 and the docking component 3 can be locked.

[0096] The docking tube 32 is arranged on the side of the alignment plate 31 facing away from the fixed arm 222, and is connected to the alignment plate 31 through a connecting arm 321; specifically, the length direction of this connecting arm 321 is perpendicular to the length direction of the fixed arm 222, and this connecting arm 321 is fixedly connected to the side of the alignment plate 31 facing away from the fixed arm 222 and extends outward in the horizontal direction (the direction facing away from the alignment plate 31), and the docking tube 32 is fixedly connected to the extended end of the connecting arm 321.

[0097] The docking tube 32 has a hollow interior and an open structure facing away from the fixed arm 222, and a plurality of reserved holes 322 are provided on its inner bottom surface (the side opposite to the open surface); in this embodiment, the plurality of reserved holes 322 are arranged at intervals around the central axis of the docking tube 32, and all pass through from the inner bottom surface of the docking tube 32 to the outer bottom surface of the docking tube 32.

[0098] At least one pressure relief hole 323 is formed on the outer peripheral wall of the docking sleeve 32, and this pressure relief hole 323 penetrates the open surface of the docking sleeve 32 along the axial direction of the docking sleeve 32; during actual production, the pressure relief hole 323 serves to release the pressure generated by the high-pressure gas in the rubber, thereby preventing the docking sleeve 32 from being affected by the force generated by the expansion of the rubber.

[0099] The reinforcing sleeve 33 is coaxially sleeved on the outer circumference of the docking sleeve 32 , and its inner circumference is in contact with the outer circumference of the docking sleeve 32 , thereby preventing the docking sleeve 32 from continuing to bulge outward, thereby further strengthening the structural strength of the docking sleeve 32 .

[0100] The end of the reinforcing sleeve 33 facing the fixed arm 222 has a limiting ring 331 extending inward. This limiting ring 331 is connected to the end face of the docking sleeve 32 facing the fixed arm 222, and the limiting ring 331 is provided with multiple threaded holes 332 corresponding to the multiple reserved holes 322.

[0101] Among them, each threaded hole 332 is threadedly connected to a connecting bolt 333; the connecting bolt 333 is used to enter the docking sleeve 32 through the corresponding reserved hole 322 and be connected to the end of the PE elbow (during the expansion of the rubber, the connecting bolt 333 rotates and drills into the rubber end surface) to achieve that when the docking sleeve 32 rotates around the main axis 22, the rubber tube is subjected to traction to form a PE elbow product.

[0102] In some embodiments, as Figure 6 and Figure 7 As shown, the first locking structure 4 includes two groups of connecting rods 41 and a support plate 42 .

[0103] The two sets of connecting rods 41 are respectively arranged on the upper and lower sides of the fixed arm 222, and are respectively abutted against the upper and lower sides of the fixed arm 222; in this embodiment, in order to improve the abutment effect, two pads are respectively connected to the upper and lower sides of the fixed arm 222. When the fixed arm 222 and the pads abut, the connection points on the pads are deformed and sunken.

[0104] Both groups of connecting rods 41 are connected to the alignment plate 31, and each group of connecting rods 41 includes multiple connecting rods 41 arranged at intervals along the length direction of the fixed arm 222; wherein, each connecting rod 41 extends toward the fixed arm 222, and the extended end is on the side of the fixed arm 222 facing away from the alignment plate 31.

[0105] The support plate 42 is arranged on the side of the fixed arm 222 facing away from the alignment plate 31, and the support plate 42 has two groups of through holes 421 arranged in parallel along the up and down directions and corresponding one-to-one with the two groups of connecting rods 41; each group of through holes 421 includes multiple through holes 421 arranged at intervals along the length direction of the fixed arm 222 and corresponding one-to-one with the corresponding multiple connecting rods 41.

[0106] Each connecting rod 41 is suitable for passing through the corresponding through hole 421 and extending out, and the extending end thereof is threadedly connected with a nut 411 for abutting against the support plate 42 .

[0107] By adopting the above technical solution, two sets of connecting rods 41 are used to limit the movement of the docking assembly 3 in the up and down directions, as well as the movement along the length direction of the fixed arm 222; the support plate 42 and the alignment plate 31 cooperate to limit the movement of the docking assembly 3 in the horizontal direction perpendicular to the fixed arm 222.

[0108] In some embodiments, as Figure 3 As shown, the clamping assembly 5 includes a sliding member 51 , an upper clamping plate 52 and a lower clamping plate 53 .

[0109] The sliding member 51 is slidably connected to the swing arm 223 along the length direction of the swing arm 223, and the second locking structure 8 is arranged between the sliding member 51 and the swing arm 223 to connect the sliding member 51 and the swing arm 223 and limit the movement of the sliding member 51 relative to the swing arm 223.

[0110] The upper clamping plate 52 is provided on the lower side of the sliding member 51 and is detachably connected to the sliding member 51, and its thickness direction is parallel to the left-right direction; specifically, as Figure 2 As shown, the connection between the sliding member 51 and the upper clamping plate 52 is achieved by means of a T-shaped connecting block, the horizontal surface of which is connected to the lower side surface of the sliding member 51 and the vertical extension end of which is connected to the upper clamping plate 52.

[0111] The lower clamping plate 53 is disposed on the lower side of the upper clamping plate 52 , with its thickness direction parallel to the left-right direction, and one end of the lower clamping plate 53 is hinged to the upper clamping plate 52 along the left-right direction.

[0112] Among them, the vertical cross-section of the upper splint 52 is an arc-shaped structure with the opening facing downward, and the vertical cross-section of the lower splint 53 is an arc-shaped structure with the opening facing upward; based on this, a gap is formed between the swinging end of the upper splint 52 and one of the swinging ends of the lower splint 53, and a second swinging drive component 521 is provided between the upper splint 52 and the lower splint 53; in actual use, the second swinging drive component 521 can drive the lower splint 53 to swing relative to the upper splint 52, so that the gap is enlarged or reduced to allow the PE elbow to pass through.

[0113] It should be noted that the second swing drive component 521 here is a cylinder fixed between the upper clamping plate 52 and the lower clamping plate 53; wherein the base of the cylinder and the end of the hydraulic rod are hinged to the upper clamping plate 52 and the lower clamping plate 53 respectively, and the hinge axes are parallel to each other, so that when the cylinder is started, the hydraulic rod is extended or retracted, and the lower clamping plate 53 swings relative to the upper clamping plate 52.

[0114] In some embodiments, as Figure 3 and Figure 5 As shown, the upper splint 52 and the lower splint 53 are provided with a plurality of protrusions 6, each protrusion 6 extends outward in the left and right directions, and the protrusion 6 has a guide hole 61 radially extending along the corresponding arc-shaped structure; an adjustment arm 62 is slidably connected in the guide hole 61, and a third locking structure 7 is provided between the adjustment arm 62 and the corresponding protrusion 6; the third locking structure 7 can be used to connect the adjustment arm 62 and the protrusion 6 to limit the movement of the adjustment arm 62 relative to the protrusion 6.

[0115] By adopting the above technical solution, when the third locking structure 7 connects the adjustment arm 62 and the protrusion 6, one end of the adjustment arm 62 is suitable for abutting the outer wall of the PE elbow, thereby supporting PE elbows of different specifications.

[0116] In some embodiments, as Figure 3 As shown, the third locking structure 7 includes a locking nut 71 , a plurality of positioning holes 72 and a stop bolt 73 .

[0117] The locking nut 71 is fixedly connected to the protrusion 6 and is axially arranged toward the adjustment arm 62; specifically, a hole body connected to the guide hole 61 is opened on the protrusion 6, and this locking nut 71 is fixedly connected to the outer side surface of the protrusion 6 and connected to the aforementioned hole body.

[0118] A plurality of positioning holes 72 are provided on the adjusting arm 62 and are spaced apart along the length direction of the adjusting arm 62 ; as the adjusting arm 62 moves relative to the protrusion 6 , each positioning hole 72 is adapted to be coaxially connected to the locking nut 71 .

[0119] The stop bolt 73 is threadedly connected to the locking nut 71 and is suitable for being inserted into any one of the positioning holes 72 to limit the movement of the adjustment arm 62 relative to the protrusion 6 .

[0120] It is necessary to add that, if Figure 5 As shown, a sunken groove facing the locking nut 71 is opened on the inner wall of the guide hole 61; after the stop bolt 73 is inserted into the positioning hole 72, it can extend into the sunken groove to enhance the matching strength between the structures.

[0121] In some embodiments, as Figure 2 and Figure 4 As shown, the sliding member 51 adopts a sleeve structure suitable for slidingly sleeved on the swing arm 223, and the sliding member 51 is slidably sleeved on the swing arm 223 to be suitable for moving relative to the swing arm 223 and along the length direction of the swing arm 223.

[0122] Based on this, the second locking structure 8 includes a plurality of insertion holes 81 and a plurality of fixing nuts 82 .

[0123] The plurality of insertion holes 81 are all formed on the sliding member 51 and are in communication with the interior of the sliding member 51 .

[0124] The plurality of fixing nuts 82 are all fixedly connected to the outer wall of the sliding member 51 and are in one-to-one communication with the plurality of insertion holes 81 .

[0125] Among them, each fixing nut 82 is threadedly connected to a retaining bolt 821; and the retaining bolt 821 is used to connect with the outer wall of the swing arm 223 through the corresponding socket 81 to limit the sliding of the sliding member 51 relative to the swing arm 223.

[0126] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. PE pipe bending processing device, characterized in that, include: An elbow mold is fixedly mounted at the outlet of a rubber extruder to receive the rubber discharged from the rubber extruder, so that the outer peripheral wall of the rubber fits against the inner peripheral wall of the elbow mold under the action of internal high-pressure gas to form a tubular structure; the opening of the elbow mold is defined to face forward; A base is arranged in parallel on the outer side of the rubber extruder in the left-right direction, a positioning seat is slidably connected to the base in the left-right direction, and a linear driving member is connected to the positioning seat in a transmission manner; the positioning seat has a main shaft extending upward, the main shaft is connected to the upper side of the positioning seat in a vertical direction, and the main shaft is connected to the rotation driving member in a transmission manner; a docking assembly disposed outside the main shaft and connected to the main shaft via a fixed arm; the docking assembly is movable along the length of the fixed arm to increase or decrease the distance between the docking assembly and the main shaft, enabling the docking assembly to connect with the open end of the elbow mold to form a sealed space; and a first locking structure is further provided between the docking assembly and the fixed arm; and A plurality of clamping assemblies are arranged around the main shaft at intervals on the outside of the main shaft and are connected to the main shaft through a swing arm; the swing arm is hinged to the main shaft and is transmission-connected to a first swing driving component so that the clamping assembly can avoid the traction track setting of the PE elbow; and the clamping assembly can move along the length direction of the swing arm to increase the distance between the clamping assembly and the main shaft, so that the clamping assembly can swing with the swing arm to connect with the PE elbow, and each of the clamping assemblies has a second locking structure with the corresponding swing arm.

2. The PE pipe bending processing device according to claim 1, characterized in that: The elbow mold comprises: A mounting plate, which has an annular structure and is used to be connected to the output end face of the rubber extruder; An inner sleeve, fixedly connected to a side of the mounting plate facing away from the rubber extruder; An outer sleeve is fixedly connected to a side of the mounting plate facing away from the extruder, is sleeved on the outer periphery of the inner sleeve, and one end facing away from the mounting plate is connected to the inner sleeve, so that a cavity structure is formed between the outer sleeve and the inner sleeve; The outer sleeve has an upward-opening water inlet and a downward-opening water outlet; the water inlet is connected to a water inlet component, and the water inlet component is used to communicate with a water source to inject water into the cavity structure and reduce the temperature of the inner sleeve; the water outlet is connected to a drain pipe, and the drain pipe extends downward; In addition, the water inlet component is connected to a water spray component through a hose; when the docking assembly pulls the PE elbow out of the elbow mold, the water spray component can be pulled toward the PE elbow to spray water toward the outer wall of the PE elbow.

3. The PE pipe bending processing device according to claim 2, characterized in that: The PE elbow processing device also includes: The recovery component is fixed on the lower side of the outer sleeve and has a hollow interior and an upward opening structure to recover the liquid discharged through the drain pipe; and a filter screen is provided on the open surface of the recovery component to limit the passage of impurities.

4. The PE pipe bending processing device according to claim 1, characterized in that: The docking assembly includes: an alignment plate, slidably disposed on the fixed arm along the length direction of the fixed arm, and the first locking structure is disposed between the alignment plate and the fixed arm; A docking sleeve is provided on the side of the alignment plate facing away from the fixed arm and is connected to the alignment plate via a connecting arm; the docking sleeve is hollow inside and open facing away from the fixed arm, and a plurality of pre-set holes are provided on its inner bottom surface; at least one pressure relief hole is provided on the outer peripheral wall of the docking sleeve, and the pressure relief hole passes through the open surface of the docking sleeve along the axial direction of the docking sleeve; and A reinforcement sleeve is coaxially sleeved on the outer circumference of the docking sleeve, and its inner circumference is in contact with the outer circumference of the docking sleeve; the end of the reinforcement sleeve facing the fixed arm has a limiting ring extending inward, the limiting ring is in contact with the end surface of the docking sleeve facing the fixed arm, and the limiting ring is provided with a plurality of threaded holes that are in one-to-one correspondence with the plurality of reserved holes; Wherein, each of the threaded holes is threadedly connected with a connecting bolt; the connecting bolt is used to enter the docking tube through the corresponding reserved hole and be connected to the end of the PE elbow.

5. The PE pipe bending processing device according to claim 4, characterized in that: The first locking structure comprises: Two groups of connecting rods are respectively arranged on the upper and lower sides of the fixed arm and are connected to the alignment plate; each group of connecting rods includes a plurality of connecting rods arranged at intervals along the length direction of the fixed arm, and each connecting rod extends toward the fixed arm to the side of the fixed arm facing away from the alignment plate; and a support plate disposed on a side of the fixed arm facing away from the alignment plate, and having two groups of through holes arranged in parallel in the vertical direction and corresponding one-to-one with the two groups of connecting rods; each group of through holes includes a plurality of through holes spaced apart along the length direction of the fixed arm and corresponding one-to-one with the corresponding plurality of connecting rods; Wherein, each of the connecting rods is suitable for passing through the corresponding through hole and extending out, and the extending end thereof is threadedly connected with a nut for abutting against the support plate.

6. The PE pipe bending processing device according to claim 1, characterized in that: The clamping assembly comprises: a sliding member, slidably connected to the swing arm along the length direction of the swing arm, and the second locking structure is provided between the sliding member and the swing arm; an upper clamping plate, disposed on the lower side of the sliding member and detachably connected to the sliding member, with a thickness direction thereof being parallel to the left-right direction; and A lower splint is provided on the lower side of the upper splint, with a thickness direction thereof being parallel to the left-right direction, and one end of the lower splint is hinged to the upper splint along the left-right direction; In which, the vertical cross-section of the upper splint is an arc-shaped structure with the opening facing downward, and the vertical cross-section of the lower splint is an arc-shaped structure with the opening facing upward; a gap is formed between the swinging end of the upper splint and one of the swinging ends of the lower splint, and a second swinging drive component is provided between the upper splint and the lower splint, and the second swinging drive component can drive the lower splint to swing relative to the upper splint to increase or decrease the gap.

7. The PE pipe bending processing device according to claim 6, characterized in that: The upper and lower clamping plates each have a plurality of protrusions, each of which extends outward in the left-right direction and has a guide hole radially extending along the corresponding arc-shaped structure. An adjustment arm is slidably connected in the guide hole, and a third locking structure is provided between the adjustment arm and the corresponding protrusion. Wherein, when the third locking structure connects the adjusting arm and the protrusion, one end of the adjusting arm is suitable for abutting against the outer wall of the PE elbow.

8. The PE pipe bending processing device according to claim 7, characterized in that: The third locking structure includes: a locking nut, fixedly connected to the protrusion and axially arranged toward the adjusting arm; a plurality of positioning holes, formed on the adjusting arm and spaced apart along the length of the adjusting arm, wherein each positioning hole is adapted to be coaxially connected to the locking nut; and A stop bolt is threadedly connected to the locking nut and is suitable for being inserted into any one of the positioning holes to limit the movement of the adjustment arm relative to the protrusion.

9. The PE pipe bending processing device according to claim 6, characterized in that: The sliding member adopts a sleeve structure suitable for slidingly sleeved on the swing arm, and the sliding member is slidably sleeved on the swing arm; the second locking structure includes: a plurality of jacks, each of which is provided on the sliding member and is in communication with the interior of the sliding member; and A plurality of fixing nuts are fixedly connected to the outer wall of the sliding member and are in one-to-one communication with the plurality of the insertion holes; Wherein, each of the fixing nuts is threadedly connected to a retaining bolt; and the retaining bolt is used to connect with the outer wall of the swing arm through the corresponding socket to limit the sliding of the sliding member relative to the swing arm.

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