Hollow pipe winding die

Abstract

The utility model relates to the technical field of winding pipe fittings, in particular to a hollow pipe fitting winding die which at least comprises a first extrusion main machine provided with a first extrusion head; the second extrusion main machine is provided with a second extrusion head, and the first extrusion main machine is located beside the second extrusion main machine; the winding head is positioned below the first extrusion head and the second extrusion head; the pressing assemblies are all arranged beside the winding head; the limiting assemblies are arranged beside the winding head, the limiting assemblies and the pressing assemblies are arranged in a staggered mode, and the limiting assemblies are located at the rear ends of the first extrusion head and the second extrusion head; the position adjusting assemblies are arranged beside the winding head, and the positions of the pressing assembly and the limiting assembly are adjusted relative to the winding head through the position adjusting assemblies; the first extrusion main machine, the second extrusion main machine, the winding head and the position adjusting assembly are all arranged on the base. According to the utility model, a plurality of hollow pipe fittings can be synchronously wound at one time, so that the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of winding pipe fittings, and more specifically, to a winding die for hollow pipe fittings. Background Art

[0002] The HDPE (high-density polyethylene) hollow wall winding pipe has flat inner and outer surfaces and belongs to a flexible pipe. It has good extensibility, strong compressive and uneven settlement resistance, and can improve the earthquake resistance and disaster reduction capabilities of public facilities. The HDPE hollow wall winding pipe is made of high-density polyethylene resin. First, a hollow pipe fitting is extruded by an extruder and placed on a winding forming machine. Then, an HDPE melt column is extruded by another extruder. A new type of plastic pipe fitting is produced by a forming method of winding while extruding and hot melt welding, and simultaneously axially pressing. Since the finally formed winding pipe fitting has a certain length, the production process of winding with a conventional single hollow pipe fitting has low efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a winding die for hollow pipe fittings, which can simultaneously wind multiple hollow pipe fittings at one time, thereby greatly improving the production efficiency.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is:

[0005] Provide a winding die for hollow pipe fittings, which at least includes

[0006] A first extrusion main machine, provided with a first extrusion head for extruding a first welding part;

[0007] A second extrusion main machine, provided with a second extrusion head for extruding a second welding part, and the first extrusion main machine is located beside the second extrusion main machine;

[0008] A winding head, which is used for continuously welding the first pipe fitting and the second pipe fitting through the first welding part and the second welding part while the first pipe fitting and the second pipe fitting are wound into a circular pipe. The winding head is located below the first extrusion head and the second extrusion head, and the first extrusion head and the second extrusion head are arranged in a front-back dislocation along the axis direction of the winding head;

[0009] A plurality of pressing components, all arranged beside the winding head, and respectively pressing and fitting the first pipe fitting and the second pipe fitting along the outer circumferential surface of the winding head;

[0010] A plurality of limiting components, arranged beside the winding head and misaligned with the pressing components. The limiting components are located at the rear ends of the first extrusion head and the second extrusion head, and are used for fitting and limiting the side walls of the first pipe fitting and the second pipe fitting;

[0011] A plurality of position adjusting components are arranged beside the winding head. Both the pressing component and the limiting component are position-adjusted relative to the winding head through the position adjusting components.

[0012] A base is used for installing various components. The first extrusion main machine, the second extrusion main machine, the winding head, and the position adjusting components are all installed on the base.

[0013] The utility model needs to be used in cooperation with an extruder for pipe fittings. The winding head is used to wind the extruded pipe fittings. The first extrusion main machine and the second extrusion main machine of the utility model extrude welding materials, which can weld the first pipe fitting and the second pipe fitting into one body. In this way, while the outer walls of the first pipe fitting and the second pipe fitting are fitted and wound, welding is carried out, so that the wound pipe can maintain its shape after forming; among them, the first welding part extruded by the first extrusion main machine is used to weld between the first pipe fitting and the second pipe fitting; the second welding part extruded by the second extrusion main machine is used to weld the second pipe fitting and the first pipe fitting after one turn of winding, and so on, so that the length of the wound pipe fitting can be continuously increased in the length direction until the required length is finally reached. Specifically, during the process of winding the pipe fittings, the position adjusting components can be used to adjust the positions of the pressing component and the limiting component to ensure that during the winding process, both the first pipe fitting and the second pipe fitting can be simultaneously in contact with the winding head, so as to facilitate winding and forming; at the same time, it can also make the outer walls of the first pipe fitting and the second pipe fitting in contact, so that the formed product has a reduced gap rate and improved density and strength. The wound pipe of the utility model can wind two pipe fittings at the same time, reducing the production time of the wound pipe fittings by half. The quality and appearance of the pipe fittings remain unchanged, and the production speed is greatly improved; within the scope of knowledge of those skilled in the art, including but not limited to winding two pipe fittings, more pipe fittings can also be wound simultaneously. It is only necessary to set the corresponding number of extrusion machines, pressing components, and limiting components, which can improve the production efficiency of the wound pipe.

[0014] Preferably, the first extrusion head is a straight head, the second extrusion head is a bent head, the first extrusion head is located on the left front end of the second extrusion head, and the winding head rotates clockwise; or the first extrusion head is a bent head, the second extrusion head is a straight head, the first extrusion head is located on the left rear end of the second extrusion head, and the winding head rotates counterclockwise.

[0015] Preferably, the position adjusting component includes a slide bar and a slider. The slider is sleeved on the slide bar and is slidably connected to the slide bar. The end of the slide bar is also connected to the base, and the slider is connected to the pressing component or the limiting component.

[0016] Preferably, the position adjusting component further includes a screw rod. A nut is connected to the slider, and the screw rod is threadedly connected to the nut. The end of the screw rod is also connected to the pressing component or the limiting component.

[0017] Preferably, the pressing assembly includes a first support frame and a pressing roller. The first support frame is connected to the screw rod, and the pressing roller is rotatably connected to the first support frame.

[0018] Preferably, the limiting assembly includes a second support frame and a limiting plate connected to each other. The limiting plate faces the side of the winding head close to the first extrusion head or the second extrusion head, and the second support frame is connected to the screw rod.

[0019] Preferably, there are multiple pressing assemblies, and at least two of them are arranged on the opposite sides along the circumferential direction of the outer circumference of the winding head.

[0020] Preferably, two of the pressing assemblies are both slidably connected to the same position adjusting assembly.

[0021] Preferably, the winding head includes a motor and a winding drum, and the winding drum is installed on the output shaft of the motor.

[0022] Preferably, the winding head further includes a plurality of winding shafts, and the plurality of winding shafts are arranged along the circumferential direction of the winding drum and are all rotatably connected to the winding drum.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] The design of the double extrusion channels of the first extrusion main machine and the second extrusion main machine can shorten the production time of the winding pipe and improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present utility model from the first perspective;

[0026] Figure 2 is a schematic structural diagram of the present utility model from the second perspective;

[0027] Figure 3 is a schematic structural diagram of the present utility model from the third perspective.

[0028] The illustration marks are explained as follows:

[0029] 1. First extrusion main machine; 11. First extrusion head; 2. Second extrusion main machine; 21. Second extrusion head; 3. Winding head; 31. Motor; 32. Winding drum; 33. Winding shaft; 4. Pressing assembly; 41. First support frame; 42. Pressing roller; 5. Limiting assembly; 51. Second support frame; 52. Limiting plate; 6. Position adjusting assembly; 61. Slide bar; 62. Slide block; 63. Screw rod; 64. Nut; 7. Base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes the present utility model in conjunction with specific embodiments. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0031] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] Embodiment 1

[0033] As Figures 1 to 3 shown in the first embodiment of a winding mold for a hollow pipe fitting of the present utility model, it at least includes a first extrusion main machine 1, provided with a first extrusion head 11 for extruding a first welding part;

[0034] a second extrusion main machine 2, provided with a second extrusion head 21 for extruding a second welding part, and the first extrusion main machine 1 is located beside the second extrusion main machine 2;

[0035] a winding head 3 for continuously welding the first pipe fitting and the second pipe fitting during the winding process into a circular pipe through the first welding part and the second welding part while winding. The winding head 3 is located below the first extrusion head 11 and the second extrusion head 21, and the first extrusion head 11 and the second extrusion head 21 are arranged in a front-back dislocation along the axis direction of the winding head 3;

[0036] a plurality of pressing components 4, all arranged beside the winding head 3, respectively pressing and fitting the first pipe fitting and the second pipe fitting along the outer circumferential surface of the winding head 3;

[0037] a plurality of limiting components 5, arranged beside the winding head 3 and dislocated from the pressing components 4. The limiting components 5 are located at the rear end of the first extrusion head 11 and the second extrusion head 21, and are used for fitting and limiting the side walls of the first pipe fitting and the second pipe fitting;

[0038] a plurality of position adjusting components 6, arranged beside the winding head 3, and both the pressing components 4 and the limiting components 5 are adjusted in position relative to the winding head 3 through the position adjusting components 6;

[0039] The base 7 is used for installing various components, and the first extrusion main machine 1, the second extrusion main machine 2, the winding head 3, and the position adjustment component 6 are all installed on the base 7.

[0040] This utility model needs to be used in conjunction with an extruder for pipe fittings. The winding head 3 is used to wind the extruded pipe fittings. The materials extruded by the first extrusion main machine 1 and the second extrusion main machine 2 of this utility model are welding materials, which can weld the first pipe fitting and the second pipe fitting into one body. In this way, while the outer walls of the first pipe fitting and the second pipe fitting are fitted and wound, welding is carried out, so that the wound pipe can maintain its shape after forming; among them, the first welding part extruded by the first extrusion main machine 1 is used to weld between the first pipe fitting and the second pipe fitting; the second welding part extruded by the second extrusion main machine 2 is used to weld the second pipe fitting and the first pipe fitting after one turn of winding, and so on, so that the length of the wound pipe fitting can be continuously increased until the required length is reached. Specifically, during the winding process of the pipe fitting, the position adjustment component 6 can be used to adjust the positions of the pressing component 4 and the limiting component 5 to ensure that during the winding process, both the first pipe fitting and the second pipe fitting can be simultaneously fitted with the winding head 3 for easy winding and forming; at the same time, it can also make the outer walls of the first pipe fitting and the second pipe fitting fit, so that the formed product has a reduced gap rate and improved density and strength. The wound pipe of this utility model can wind two pipe fittings simultaneously, reducing the production time of the wound pipe fitting by half, with the quality and appearance of the pipe fitting remaining unchanged as before, and greatly improving the production speed; within the knowledge scope of those skilled in the art, including but not limited to winding two pipe fittings, more pipe fittings can also be wound simultaneously, and it is only necessary to set the corresponding number of extrusion machines, pressing components 4, and limiting components 5, which can improve the production efficiency of the wound pipe.

[0041] In this embodiment, 3 pressing components 4 are provided, 2 limiting components 5 are provided, and the number of the position adjustment component 6 is set accordingly. Preferably, the adjustment component can be set to 5, and two of the pressing components 4 are arranged on the same position adjustment component 6, and these two pressing components 4 are respectively slidably connected to this position adjustment component 6.

[0042] As an implementation manner of this utility model, the first extrusion head 11 is a straight head, the second extrusion head 21 is a bent head, the first extrusion head 11 is located on the left front end of the second extrusion head 21, and the winding head 3 rotates clockwise; or the first extrusion head 11 is a bent head, the second extrusion head 21 is a straight head, the first extrusion head 11 is located on the left rear end of the second extrusion head 21, and the winding head 3 rotates counterclockwise.

[0043] The straight head can control the extrusion direction of the first welding part to be straight extrusion for welding between the first pipe fitting and the second pipe fitting; the elbow is relative to the straight head, perpendicular to the vertical direction, and can control the second welding part to be extruded laterally for welding between the second pipe fitting and the first pipe fitting of the next winding. The positions of the first extrusion head 11 and the second extrusion head 21 and the rotation direction of the winding head 3 are set correspondingly to meet the purpose of connectable winding between the first pipe fitting and the second pipe fitting.

[0044] As an embodiment of the present utility model, the position adjusting assembly 6 includes a slide bar 61 and a slider 62. The slider 62 is sleeved on the slide bar 61 and is slidably connected to the slide bar 61. The end of the slide bar 61 is also connected to the base 7, and the slider 62 is connected to the pressing assembly 4 or the limiting assembly 5.

[0045] The slide bar 61 is arranged along the direction parallel to the axis of the winding head 3, and the slider 62 is slidably connected to the slide bar 61, so that the pressing assembly 4 or the limiting assembly 5 can adjust its position along the axis direction of the winding head 3 to achieve the fitting between the first pipe fitting, the second pipe fitting and the winding head 3 and the fitting between the first pipe fitting and the second pipe fitting.

[0046] As an embodiment of the present utility model, the position adjusting assembly 6 further includes a screw rod 63. A nut 64 is connected to the slider 62, and the screw rod 63 is threadedly connected to the nut 64. The end of the screw rod 63 is also connected to the pressing assembly 4 or the limiting assembly 5.

[0047] The threaded connection between the screw rod 63 and the nut 64 can realize the up and down movement of the pressing assembly 4 or the limiting assembly 5 in the vertical direction, specifically by adjusting the relative position of the screw rod 63. The screw rod 63 drives the pressing assembly 4 or the limiting assembly 5 to move together to achieve the fitting between the first pipe fitting, the second pipe fitting and the winding head 3 and the fitting between the first pipe fitting and the second pipe fitting.

[0048] As an embodiment of the present utility model, the pressing assembly 4 includes a first support frame 41 and a pressing roller 42. The first support frame 41 is connected to the screw rod 63, and the pressing roller 42 is rotatably connected to the first support frame 41.

[0049] The first support frame 41 can not only be used to hold the pressing roller 42, but also be fixed to the screw rod 63, so that the pressing roller 42 can roll and adjust its relative position with the winding head 3, thereby realizing the fitting between the first pipe fitting, the second pipe fitting and the winding head 3 and facilitating the forming of the winding pipe.

[0050] As an embodiment of the present utility model, the limiting assembly 5 includes a second support frame 51 and a limiting plate 52 which are connected to each other. The limiting plate 52 faces the side of the winding head 3 close to the first extrusion head 11 or the second extrusion head 21, and the second support frame 51 is connected to the screw rod 63.

[0051] The limiting plate 52 is used for limiting the side part of the winding pipe. Specifically, during the winding process of the first pipe fitting and the second pipe fitting, it limits from its side wall, so that multiple turns of the first pipe fitting and the second pipe fitting can be closely attached, making the finally formed winding pipe have no pores in the length direction.

[0052] As an embodiment of the present utility model, there are multiple pressing components 4, and at least two of the pressing components 4 are respectively arranged on the opposite sides along the outer circumferential direction of the winding head 3.

[0053] The pressing components 4 are respectively used for pressing the first pipe fitting and the second pipe fitting. In order to improve the pressing effect, when pressing the same pipe fitting, the pressing components 4 can be arranged at different positions along the winding head 3. And arranging the pressing components 4 on the opposite sides can act together synergistically to improve the pressing effect on the pipe fitting. In this embodiment, a relatively larger pressing roller can be arranged in the pressing component 4 on the left side, and a relatively smaller pressing roller can be arranged in the pressing component 4 on the right side. The smaller roller on the right side belongs to an adjusting roller, mainly for adjusting the position of the pipe fitting, adjusting the distance between the first pipe fitting and the second pipe fitting, and also having a certain pressing effect; the larger roller on the left side belongs to a pressing roller. After the pipe fitting is extruded and formed, its surface will bulge into an arc shape, and it can press the surface of the formed pipe fitting. Of course, within the scope of the knowledge of those skilled in the art, the pressing rollers at different positions can also be set to the same size.

[0054] As an embodiment of the present utility model, the winding head 3 includes a motor 31 and a winding drum 32, and the winding drum 32 is installed on the output shaft of the motor 31.

[0055] The motor 31 is used to drive the winding drum 32 to rotate, thereby realizing the winding function of the first pipe fitting and the second pipe fitting.

[0056] Embodiment 2

[0057] The following is the second embodiment of a hollow pipe fitting winding die of the present utility model. This embodiment is similar to Embodiment 1, the difference is that each pressing component 4 corresponds to a position adjusting component 6.

[0058] Each pressing component 4 uses a separate position adjusting component 6 to adjust its position to meet the pressing function of the pipe fitting.

[0059] Embodiment 3

[0060] The following is the third embodiment of a hollow pipe fitting winding die of the present utility model. This embodiment is similar to Embodiment 1, the difference is that the winding head 3 further includes a plurality of winding shafts 33, and the plurality of winding shafts 33 are arranged along the circumferential direction of the winding drum 32 and are all rotatably connected to the winding drum 32.

[0061] The reel 33 can rotate relative to the drum 32 itself. Thus, during the winding process of the first pipe fitting and the second pipe fitting, the frictional force can be reduced, and the sliding friction can be changed into rolling friction, which is beneficial to increasing the convenience of pipe fitting winding and improving the production efficiency.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A winding die for a hollow pipe fitting, characterized in that, At least including A first extrusion main machine (1) is provided with a first extrusion head (11) for extruding a first welding part; A second extrusion main machine (2) is provided with a second extrusion head (21) for extruding a second welding part. The first extrusion main machine (1) is located beside the second extrusion main machine (2); A winding head (3) is used for continuously welding the first pipe fitting and the second pipe fitting during the winding process into a circular pipe through the first welding part and the second welding part. The winding head (3) is located below the first extrusion head (11) and the second extrusion head (21), and the first extrusion head (11) and the second extrusion head (21) are arranged in a front-back dislocation along the axial direction of the winding head (3); A plurality of pressing components (4) are all arranged beside the winding head (3) to press and fit the first pipe fitting and the second pipe fitting along the outer circumferential surface of the winding head (3) respectively; A plurality of limiting components (5) are arranged beside the winding head (3) and are arranged in a dislocation with the pressing components (4). The limiting components (5) are located at the rear ends of the first extrusion head (11) and the second extrusion head (21) and are used for fitting and limiting the side walls of the first pipe fitting and the second pipe fitting; A plurality of position adjusting components (6) are arranged beside the winding head (3). Both the pressing components (4) and the limiting components (5) are adjusted in position relative to the winding head (3) through the position adjusting components (6); A base (7) is used for installing each component. The first extrusion main machine (1), the second extrusion main machine (2), the winding head (3), and the position adjusting components (6) are all installed on the base (7).

2. The winding die for the hollow pipe fitting according to claim 1, wherein The first extrusion head (11) is a straight head, the second extrusion head (21) is an elbow head. The first extrusion head (11) is located at the front left of the second extrusion head (21), and the winding head (3) rotates clockwise; or the first extrusion head (11) is an elbow head, the second extrusion head (21) is a straight head, the first extrusion head (11) is located at the rear left of the second extrusion head (21), and the winding head (3) rotates counterclockwise.

3. The winding die for the hollow pipe fitting according to claim 2, wherein The position adjusting component (6) includes a sliding rod (61) and a sliding block (62). The sliding block (62) is sleeved on the sliding rod (61) and is slidably connected to the sliding rod (61). The end of the sliding rod (61) is also connected to the base (7), and the sliding block (62) is connected to the pressing component (4) or the limiting component (5).

4. The winding die for hollow pipe fittings according to claim 3, characterized in that, The position adjusting component (6) further includes a screw rod (63). A nut (64) is connected to the sliding block (62). The screw rod (63) is threadedly connected to the nut (64). The end of the screw rod (63) is also connected to the pressing component (4) or the limiting component (5).

5. The winding die for the hollow pipe fitting according to claim 4, characterized in that, The pressing component (4) includes a first support frame (41) and a pressing roller (42). The first support frame (41) is connected to the screw rod (63), and the pressing roller (42) is rotatably connected to the first support frame (41).

6. The winding die for hollow pipe fittings according to claim 5, characterized in that, The limiting component (5) includes a second support frame (51) and a limiting plate (52) which are connected to each other. The limiting plate (52) faces the side of the winding head (3) close to the first extrusion head (11) or the second extrusion head (21), and the second support frame (51) is connected to the screw rod (63).

7. The winding die for the hollow pipe fitting according to any one of claims 1 to 6, characterized in that, There are multiple pressing components (4), and at least two of the pressing components (4) are respectively arranged on opposite sides along the circumferential direction of the winding head (3).

8. The winding die for the hollow pipe fitting according to claim 7, wherein Two of the pressing components (4) are both slidably connected to the same position adjusting component (6).

9. The winding die for hollow pipe fittings according to claim 1, characterized in that, The winding head (3) includes a motor (31) and a winding drum (32), and the winding drum (32) is installed on the output shaft of the motor (31).

10. The winding die for hollow pipe fittings according to claim 9, characterized in that, The winding head (3) further includes a plurality of winding shafts (33), and the plurality of winding shafts (33) are arranged along the circumferential direction of the winding drum (32) and are all rotatably connected to the winding drum (32).

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