Thermal-state continuous winding spherical end socket production line

Abstract

The utility model relates to a thermal-state continuous winding spherical end socket production line. The thermal-state continuous winding spherical end socket production line comprises a base and a spherical mold arranged on the base in a rotating and swinging mode. The extruder transversely moves on one side of the spherical mold and is provided with a material belt; the extruder is matched with an auxiliary pressing wheel part, a cutting assembly and a heating part; a rotary support is arranged on the base; a rotary frame body is arranged on the rotary support; the spherical mold is rotationally arranged on the rotary frame body; the cutting-off assembly is used for cutting off the material belt extruded by the extruder; and an extrusion rack is arranged at the lower part of the extruder. The device is reasonable in design, compact in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to a production line for hot-state continuous winding spherical heads. Background Art

[0002] At present, spherical heads are generally produced by a die pressing process. The manufacturing cost of the die increases with the increase of the head diameter. Therefore, the current maximum head diameter is only 3500. The spherical heads made by splicing plates have low strength, difficult quality control and low efficiency. For the spherical heads made by splicing plates, due to the too thick plates being difficult for manual operation, it is very difficult to manufacture when the plate thickness exceeds 20mm, and the spherical heads that are too thick cannot be manufactured. For the spherical heads made by manually splicing plates, due to the welds at the splicing places of the plates, the appearance of the spherical heads is not very beautiful. The spherical heads with a diameter of less than 3 meters can also be produced by a rotational molding process. For the spherical heads with a diameter of more than 3 meters, restricted by the current rotational molding technology, it is very difficult to be rotationally molded.

[0003] The technical problems to be solved by the utility model are as follows: For the manufacturing of the spherical die, due to the large diameter size of the spherical die, the maximum diameter can reach 6 meters or even larger, it is very difficult to ensure the manufacturing accuracy. For the spherical die, how to paste the tape on the surface of the spherical die becomes an urgent technical problem to be solved. Since the extrusion linear velocity of the tape is constant and the tape is evenly wound on the surface of the spherical die according to a certain pitch, how to match the linear velocity on the surface of the spherical die with the extrusion linear velocity of the tape becomes an urgent technical problem to be solved. The swing of the spherical die is a non-centered rotation. The technical problem is how to match the left and right moving speed and the front and back moving speed of the tape extruder with the swing angle of the spherical die. In addition, the technical problems also include how to increase the thickness during the production of the spherical head and the overlapping method of the tape. Summary of the Utility Model

[0004] Generally speaking, the technical problem to be solved by the utility model is to provide a production line for hot-state continuous winding spherical heads.

[0005] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0006] In order to realize continuous winding of the head, a production line for hot-state continuous winding spherical heads includes a base and a spherical die rotatably and swingably arranged on the base; a tape extruder that moves horizontally on one side of the spherical die;

[0007] An auxiliary pressing wheel part, a cutting component and a heating part are provided in supporting with the extruder;

[0008] A slewing bearing is arranged on the base; a slewing frame body is arranged on the slewing bearing;

[0009] The spherical die is rotatably arranged on the slewing frame body;

[0010] A cutting component for cutting the strip extruded by an extruder;

[0011] An extrusion frame is provided at the lower part of the extruder.

[0012] As a further improvement of the above technical solution:

[0013] To achieve the horizontal rotation of the spherical mold, the spherical mold includes a steel plate spherical crown and a mandrel connected to the steel plate spherical crown; the other end of the mandrel is a coupling flange, and the coupling flange is connected with a bearing housing;

[0014] It is arranged on the rotary frame body at the lower end of the bearing housing;

[0015] A mold rotation motor is provided on the base; the mold rotation motor is connected with a PLC controller; the mold rotation motor is drivingly connected with the coupling flange.

[0016] To achieve continuous winding, the slewing bearing is drivingly connected with a mold swing motor; each time the spherical mold rotates one circle, the mold swing motor swings a set angle at the same time, the strip extruded by the extruder moves a set distance towards the center of the circle at the same time, and the extruder moves a set distance at the same time.

[0017] To achieve the lateral movement of the extruder, wheels and a left - right movement motor are installed on the extrusion frame; an extrusion movement guide rail is horizontally arranged below the extrusion frame, a rack is horizontally installed on the extrusion movement guide rail, the left - right movement motor has a gear meshing and driving with the rack, and the extrusion frame moves on the extrusion movement guide rail; the wheels run on the extrusion movement guide rail;

[0018] A front - rear movement motor and a front - rear guide rail are provided on the extrusion frame, and the front - rear movement motor pulls the extruder to move on the front - rear guide rail;

[0019] An extrusion die and an auxiliary pressure wheel part are installed at the front of the extruder.

[0020] To achieve extrusion, the auxiliary pressure wheel part adopts the method of pressing tightly by a cylinder to press the strip coming out of the extrusion die against the surface of the spherical mold.

[0021] To achieve auxiliary support, an auxiliary unloading arm is hinged on one side of the base; a unloading driving cylinder body is connected between the base and the auxiliary unloading arm;

[0022] A process lifting frame and process support legs are respectively on the upper and lower surfaces of the auxiliary unloading arm.

[0023] To achieve automatic cutting of the strip, the cutting component includes a linear driving part arranged on the extrusion frame, the linear driving part is connected with a first - stage pushing part, a hand - crank driving part is arranged on the first - stage pushing part, the hand - crank driving part is connected with a second - stage pushing part, and a cutter head is arranged on the second - stage pushing part.

[0024] To achieve assisted extrusion, the auxiliary pressure wheel part includes a pressure wheel frame arranged on the extrusion frame; a first pressure wheel group and a second pressure wheel group are arranged on the pressure wheel frame;

[0025] The first pressure wheel group includes an auxiliary push rod group horizontally arranged on the pressure wheel frame and an auxiliary swing arm hinged at the upper end to the pressure wheel frame.

[0026] The lower part of the auxiliary swing arm is hinged to the auxiliary push rod group, and an auxiliary adjustment rod is arranged on the auxiliary swing arm; a pressure wheel is arranged at the front end of the auxiliary adjustment rod.

[0027] The second pressure wheel group includes a swing cylinder body hinged at the root to the pressure wheel frame and a swing arm body hinged in the middle to the pressure wheel frame.

[0028] The head end of the swing arm body is hinged to one end of the swing arm body, and a main pressure wheel part and a slave swing pressure wheel are respectively arranged at the other end of the swing arm body.

[0029] To better match the winding, the linear velocity of the extruded tape of the extruder is fixed. As the winding diameter of the spherical mold becomes smaller, the rotation speed of the spherical mold becomes faster, and the circumference of the tape position on the spherical mold is consistent with the linear velocity of the tape extrusion.

[0030] To achieve heating, the heating part includes an electric heating part and a gas heating part;

[0031] To achieve reasonable heating, the gas heating part is used to heat the surface of the spherical mold so that the tape attached to the spherical mold is heated and adhered; the electric heating part makes the tape at the laminated part firmly adhered.

[0032] The inner wall of the wound spherical head of the present utility model is smooth and has a beautiful appearance; the density of the produced wound spherical head is better than that of the rotational molding head. Materials such as PP, PPH, and PE can all be produced using this production line. The size of the wound spherical head is not limited by the mold. Whatever size of the spherical head is required, it can be wound to the required size without changing the mold. Only one spherical mold is needed to produce spherical heads of all sizes.

[0033] The present utility model is reasonably designed, low in cost, durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact in structure and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of the use of the present utility model.

[0035] Figure 2 is a schematic structural diagram of the working swing of the present utility model.

[0036] Figure 3 is a schematic structural diagram of the cutting component of the present utility model.

[0037] Figure 4 It is a schematic structural diagram of the auxiliary pressing wheel part of the present utility model.

[0038] Among them: 1. Spherical mold; 2. Electric heating part; 3. Gas heating part; 4. Extruder; 5. Front and rear moving motor; 6. Left and right moving motor; 7. Auxiliary pressing wheel part; 8. Slewing bearing; 9. Mold swing motor; 10. Mold rotation motor; 11. Bearing seat; 12. Extrusion mold; 13. Base; 14. Extrusion moving guide rail; 15. Rack; 16. Cutting assembly; 17. Auxiliary unloading arm; 18. Linear drive part; 19. First-level pushing part; 20. Second-level pushing part; 21. Tool bit; 22. Pressing wheel frame; 23. Auxiliary swing arm; 24. Auxiliary push rod group; 25. Auxiliary adjustment rod; 26. Swing cylinder block; 27. Swing arm body; 28. Main pressing wheel part; 29. Slave swing pressing wheel; 30. Unloading drive cylinder block; 31. Process support frame; 32. Process support leg. Specific embodiments

[0039] As Figures 1-4 shown, the hot-state continuous winding spherical head production line of this embodiment includes a base 13 and a spherical mold 1 that rotates and swings on the base 13, which is used for forming the head; an extruder 4 that laterally moves a strip on one side of the spherical mold 1, so as to walk and form the head;

[0040] The extruder 4 is equipped with an auxiliary pressing wheel part 7, a cutting assembly 16 and a heating part, so as to perform roll pressing, cutting off the redundant material head and heating respectively;

[0041] A slewing bearing 8 is arranged on the base 13; a slewing frame body is arranged on the slewing bearing 8; thus, the lateral swing of the spherical mold is realized, the angle is adjusted, and the spherical crown winding is completed.

[0042] The spherical mold 1 is rotatably arranged on the slewing frame body, so as to realize rotary winding;

[0043] The cutting assembly 16 is used for cutting the strip extruded by the extruder 4; it can be a cutting tool or a cutting knife, etc.

[0044] An extrusion machine frame is arranged below the extruder 4, and its structure is not limited to that shown in the drawings.

[0045] As a specific embodiment, the spherical mold 1 includes a steel plate spherical crown and a mandrel connected to the steel plate spherical crown; the other end of the mandrel is a coupling flange, and the coupling flange is connected with a bearing seat 11;

[0046] The lower end of the bearing seat 11 is arranged on the slewing frame body, and its structure is not limited to that shown in the drawings.

[0047] A mold rotating motor 10 is arranged on the base 13 to provide rotating power; the mold rotating motor 10 is connected to a PLC controller; the mold rotating motor 10 is drivingly connected to a coupling flange.

[0048] The slewing bearing 8 is drivingly connected to a mold swinging motor 9; every time the spherical mold 1 rotates one circle, the mold swinging motor 9 swings a set angle at the same time, and the tape extruded by the extruder 4 moves a set distance towards the center of the circle at the same time, and the extruder 4 moves a set distance at the same time, so as to realize the winding of the spherical crown head.

[0049] Wheels and a left and right moving motor 6 are installed on the extrusion frame; an extrusion moving guide rail 14 is horizontally arranged below the extrusion frame, a rack 15 is horizontally installed on the extrusion moving guide rail 14, and the left and right moving motor 6 has a gear meshing with the rack 15, and the extrusion frame moves on the extrusion moving guide rail 14; the wheels run on the extrusion moving guide rail 14;

[0050] A front and back moving motor 5 and a front and back guide rail are arranged on the extrusion frame, and the front and back moving motor 5 pulls the extruder 4 to move on the front and back guide rail;

[0051] An extrusion die 12 and an auxiliary pressure wheel part 7 are installed at the front of the extruder 4.

[0052] The auxiliary pressure wheel part 7 preferably adopts the method of pressing by an air cylinder to press the tape coming out of the extrusion die 12 against the surface of the spherical mold 1, and at the same time, a certain buffer and error compensation can be realized flexibly by using the air cylinder.

[0053] An auxiliary unloading arm 17 is hinged on one side of the base 13; a unloading driving cylinder body 30 is connected between the base 13 and the auxiliary unloading arm 17; a process lifting frame 31 and a process support leg 32 are respectively arranged on the upper and lower surfaces of the auxiliary unloading arm 17. Thus, the head can be lifted and supported after being raised, and the support is realized through the support legs when it is put down.

[0054] Preferably, the cutting assembly 16 includes a linear driving part 18 arranged on the extrusion frame, the linear driving part 18 is connected to a primary pushing part 19, a hand-cranking driving part is arranged on the primary pushing part 19, the hand-cranking driving part is connected to a secondary pushing part 20, and a cutter head 21 is arranged on the secondary pushing part 20, which can cut manually and automatically.

[0055] In order to realize the rolling pressure on the tape, the auxiliary pressure wheel part 7 includes a pressure wheel frame 22 arranged on the extrusion frame; a first pressure wheel group and a second pressure wheel group are arranged on the pressure wheel frame 22;

[0056] The first pressure wheel group includes an auxiliary push rod group 24 horizontally arranged on the pressure wheel frame 22 and an auxiliary swing arm 23 whose upper end is hinged on the pressure wheel frame 22,

[0057] The lower part of the auxiliary swing arm 23 is hinged to the auxiliary push rod group 24, and an auxiliary adjustment rod 25 is arranged on the auxiliary swing arm 23; a pressing wheel is arranged at the front end of the auxiliary adjustment rod 25;

[0058] The second pressing wheel group includes a swing cylinder block 26 hinged at the root to the press frame 22 and a swing arm body 27 hinged in the middle to the press frame 22;

[0059] One end of the swing arm body 27 is hinged to one end of the swing arm body 27, and a main pressing wheel member 28 and a slave swing pressing wheel 29 are respectively arranged at the other end of the swing arm body 27, so as to realize roll pressing and have a certain floating adjustment at the same time.

[0060] The linear velocity of the strip extruded by the extruder 4 is fixed. As the winding diameter of the spherical die 1 becomes smaller, the rotation speed of the spherical die 1 becomes faster, and the circumference of the strip position on the spherical die 1 is consistent with the linear velocity of the strip extrusion.

[0061] The heating part includes an electric heating part 2 and a gas heating part 3;

[0062] The gas heating part 3 is used to heat the surface of the spherical die 1 so that the strip attached to the spherical die 1 is heated and adhered; the electric heating part 2 makes the strip at the laminated part firmly adhered.

[0063] As a practical production example, the spherical die 1 is formed by stamping a steel plate and then welding it to the mandrel. The other end of the mandrel is a coupling flange, which is connected to the bearing block 11 through the shaft bolts of the coupling flange.

[0064] In this way, the spherical die 1 can rotate, which is driven by the die rotation motor 10. The die rotation motor 10 is a servo motor, and the rotation speed of the spherical die 1 is automatically controlled by the PLC.

[0065] Wheels and a left - right movement motor 6 are installed on the frame at the bottom of the extruder 4. There are two parallel extrusion movement guide rails 14 at the bottom. A rack 15 is installed on one of the guide rails of the extrusion movement guide rails 14. Through meshing transmission with the gear on the left - right movement motor 6, the extruder 4 can move on the extrusion movement guide rails 14. The left - right movement motor 6 is a servo motor, and the movement speed of the extruder 4 is automatically controlled by the PLC.

[0066] An extrusion die 12 and an auxiliary pressing wheel part 7 are installed at the front of the extruder 4. The auxiliary pressing wheel part 7 uses the method of being pressed tightly by a cylinder to press the strip coming out of the extrusion die 12 against the surface of the spherical die 1. The working pressure of the cylinder can be adjusted, and at the same time, the cylinder also has a certain floating compensation function. Due to the certain ellipticity error in the processing of the large - diameter spherical die 1, the auxiliary pressing wheel part 7 can float conformally and always press the strip tightly against the surface of the spherical die 1.

[0067] During production, first use the gas heating part 3 to heat the surface of the spherical mold 1 with a flame. The surface of the spherical mold 1 must reach a certain temperature to make the tape stick. Otherwise, the tape will fall off the surface of the spherical mold 1 and cannot be wound. The function of the electric heating part (2) is to make the tape at the laminated part stick more firmly. The linear speed of the tape extruded by the extruder is fixed. The tape winding starts from the outer circle of the spherical mold 1 and is laminated and wound gradually from the outer circle to the center of the circle. Every time the spherical mold 1 rotates one circle, the mold swing motor 9 also swings 1 degree at the same time. The tape of the extruder also moves a distance towards the center of the circle at the same time and the extruder also moves forward a distance. The center of the slewing bearing 8 of the swing angle of the spherical mold 1 rotates non-centered. The linear speed of the extruded tape is fixed. As the winding diameter of the spherical mold 1 becomes smaller and smaller, the rotational speed of the spherical mold 1 will become faster and faster. The circumferential linear speed of the tape position on the spherical mold 1 must always be consistent with the linear speed of the tape extrusion.

[0068] After the first layer of tape is wound to the center of the circle, the PLC will control the extruder and the spherical mold to swing to the starting position when the first layer is wound, and perform the second layer of winding. This process is repeated until the required head thickness is reached.

[0069] The mold rotation motor 10, the mold swing motor 9, the front and rear movement motor 5, and the left and right movement motor 6 are all driven by servo motors. During the production process, the rotational speeds of the four servo motors are constantly variable, with four-axis linkage. The four servo motors are closed-loop controlled and automatically calculated by the PLC.

[0070] After winding, use the cutting component 16 to cut off the waste edge of the outer circle of the spherical head. When cutting, it cannot be cut through directly. Leave about 5 mm and then cut it off manually after demolding, otherwise it will damage the surface of the spherical mold (1).

[0071] When the spherical head is demolded, for safety, the auxiliary unloading arm 17 can be lifted by the cylinder to press on the spherical head to prevent the spherical head from falling down suddenly.

[0072] As an extension, materials such as PP, PPH, and PE can all be produced using this production line.

[0073] This utility model is fully described for a clearer disclosure, and the prior art will not be listed one by one.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; it is obvious for those skilled in the art to combine multiple technical solutions of the present invention. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. The technical content not described in detail in the present invention is well-known technology.

Claims

1. A hot continuous winding spherical head production line, characterized by: It comprises a base (13) and a spherical mold (1) rotatably and oscillatingly arranged on the base (13); an extruder (4) with a material belt is moved laterally on one side of the spherical mold (1); The extruder (4) is equipped with an auxiliary pressing wheel unit (7), a cutting component (16) and a heating unit; A slewing support (8) is provided on the base (13); and a slewing frame is provided on the slewing support (8); The spherical mold (1) is rotatably arranged on a rotating frame; A cutting component (16) for cutting off the material strip extruded by the extruder (4); An extruder frame is arranged at the lower part of the extruder (4).

2. The hot continuous winding spherical head production line according to claim 1 is characterized in that: The spherical mold (1) comprises a steel plate spherical crown and a mandrel connected to the steel plate spherical crown; the other end of the mandrel is a connecting flange, and the connecting flange is connected to a bearing seat (11); A rotating frame is arranged at the lower end of the bearing seat (11); A mold rotating motor (10) is arranged on the base (13); the mold rotating motor (10) is connected to a PLC controller; and the mold rotating motor (10) is connected to a transmission flange.

3. The hot continuous winding spherical head production line according to claim 2 is characterized in that: The slewing support (8) is transmission-connected to a mold swinging motor (9); each time the spherical mold (1) rotates one circle, the mold swinging motor (9) swings at a set angle, and the material strip extruded by the extruder (4) moves a set distance toward the center of the circle, while the extruder (4) moves the set distance.

4. The hot continuous winding spherical head production line according to claim 1 is characterized in that: The extruder frame is provided with wheels and a left-right moving motor (6); an extruder moving guide rail (14) is arranged transversely below the extruder frame, a rack (15) is arranged transversely on the extruder moving guide rail (14), the left-right moving motor (6) has a gear meshing with the rack (15), and the extruder frame moves on the extruder moving guide rail (14); the wheels travel on the extruder moving guide rail (14); A front-and-rear moving motor (5) and front-and-rear guide rails are arranged on the extruder frame, and the front-and-rear moving motor (5) pulls the extruder (4) to move on the front-and-rear guide rails; An extrusion die (12) and an auxiliary pressing wheel portion (7) are installed at the front of the extruder (4).

5. The hot continuous winding spherical head production line according to claim 4 is characterized in that: The auxiliary pressing wheel part (7) uses a cylinder pressing method to press the material strip coming out of the extrusion die (12) against the surface of the spherical die (1).

6. The hot continuous winding spherical head production line according to claim 1 is characterized in that: An auxiliary unloading arm (17) is hingedly connected to one side of the base (13); a unloading drive cylinder (30) is connected between the base (13) and the auxiliary unloading arm (17); A process support frame (31) and a process support leg (32) are respectively provided on the upper and lower surfaces of the auxiliary unloading arm (17).

7. The hot continuous winding spherical head production line according to claim 1 is characterized by: The cutting assembly (16) comprises a linear drive portion (18) arranged on an extruder frame, the linear drive portion (18) being connected to a primary pushing portion (19), a hand-cranked drive portion being arranged on the primary pushing portion (19), the hand-cranked drive portion being connected to a secondary pushing portion (20), and a cutter head (21) being arranged on the secondary pushing portion (20).

8. The hot continuous winding spherical head production line according to claim 1 is characterized by: The auxiliary pressing wheel part (7) comprises a pressing wheel frame (22) arranged on the extruder frame; a first pressing wheel group and a second pressing wheel group are arranged on the pressing wheel frame (22); The first pressing wheel assembly comprises an auxiliary push rod assembly (24) horizontally arranged on the pressing wheel frame (22) and an auxiliary swing arm (23) whose upper end is hinged to the pressing wheel frame (22). The lower part of the auxiliary swing arm (23) is hinged to the auxiliary push rod group (24), and an auxiliary adjustment rod (25) is arranged on the auxiliary swing arm (23); a pressure wheel is arranged at the front end of the auxiliary adjustment rod (25); The second pressing wheel assembly comprises a swing cylinder body (26) whose root is hinged to the pressing wheel frame (22) and a swing arm body (27) whose middle is hinged to the pressing wheel frame (22); The head end of the swing arm body (27) is hinged to one end of the swing arm body (27), and a main pressure wheel component (28) and a slave swing pressure wheel (29) are respectively arranged at the other end of the swing arm body (27).

9. The hot continuous winding spherical head production line according to claim 1 is characterized in that: The linear speed of the extruder (4) extruding the material strip is fixed. As the winding diameter of the spherical die (1) decreases, the rotation speed of the spherical die (1) increases, and the circumference of the position where the spherical die (1) puts the material strip on is consistent with the linear speed of the material strip extrusion.

10. The hot continuous winding spherical head production line according to claim 1, characterized in that: The heating part comprises an electric heating part (2) and a gas heating part (3); The gas heating part (3) is used to heat the surface of the spherical mold (1), so that the material strips attached to the spherical mold (1) are heated and adhered; the electric heating part (2) makes the material strips at the overlapping parts firmly adhered.

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