HDPE axial straight rib corrugated pipe forming equipment

Abstract

The utility model relates to HDPE (high-density polyethylene) axial straight-rib corrugated pipe forming equipment, which is designed for producing axial straight-rib corrugated pipes, is matched with the output end of winding pipe production equipment, and comprises a main support wheel which is in a circular ring shape and is fixed on the output axis of the winding pipe production equipment through a support wheel fixing rack; the side support wheel is in a circular ring shape and is fixed to the output axis of winding pipe production equipment through a rack. The main bracket wheel, the side bracket wheel and the output axis of the winding pipe production equipment are coaxial; the annular extruding machine head is used for extruding transverse ribs; the pressing wheel device is used for reinforcing and shaping the transverse rib attached to the surface of the winding pipe; a first side support wheel, an annular extruding machine head, a main support wheel, a pressing wheel device and a second side support wheel are coaxially arranged in the output direction with the output end of winding pipe production equipment as the starting point. And the connecting screw rod penetrates through the axial through holes of the main bracket wheel, the side bracket wheel, the annular extrusion machine head and the pressing wheel device, so that the side bracket wheel, the annular extrusion machine head and the pressing wheel device rotate along with the main bracket wheel.

Description

Technical Field

[0001] The utility model relates to axial straight rib corrugated pipe forming equipment, in particular to HDPE axial straight rib corrugated pipe forming equipment. Background Art

[0002] HDPE corrugated pipes usually have qualified ring stiffness, but there may be unexpected bending when facing bending. For this reason, it is necessary to add axially parallel transverse ribs to increase the bending resistance. Traditional extruded corrugated pipes can extrude transverse ribs at the same time as the outer shell is extruded. However, because the design usually also designs circumferential reinforcement ribs for ring stiffness, the combination of the surrounding reinforcement ribs and the transverse ribs will cause the extruded transverse ribs to be discontinuous, thereby reducing the maximum bending resistance of the transverse ribs. Due to its production process, traditional wound corrugated pipes cannot attach transverse ribs while winding. If the transverse ribs need to be reattached after cutting, the production speed will be reduced, thereby losing the production advantage of wound corrugated pipes.

[0003] In order to attach transverse ribs to the finished HDPE winding pipe while using the winding molding process, and the transverse ribs need to be consistent with the winding molding pipe to have the ability to produce continuously, it is necessary to design the plastic extruder head to rotate synchronously with the winding molding pipe while extruding the transverse ribs. At the same time, the melting of the thermoplastic needs to be pressed to ensure a stable and reliable connection. For this purpose, the existing pressing wheel needs to be used, and the pressing wheel needs to rotate synchronously with the extruder head to maintain reliable pressing. Summary of the invention

[0004] The utility model is a HDPE axial straight rib corrugated pipe forming device designed for producing axial straight rib corrugated pipes. At the same time, it is necessary to solve the problem that the pressing wheels for compacting the transverse ribs of small-diameter corrugated pipes may conflict with each other, and it is necessary to design a staggered pressing wheel device.

[0005] A HDPE axial straight rib corrugated pipe forming device, adapted for the output end of a winding pipe production device, comprising:

[0006] The main support wheel is in the form of a circular ring and is fixed on the output axis of the winding tube production equipment through the support wheel fixing frame;

[0007] At least two side support wheels, in the form of circular rings, are fixed to the output axis of the winding tube production equipment through a frame;

[0008] The main support wheel, the side support wheel and the output axis of the winding tube production equipment are coaxial;

[0009] Ring extruder head, used to extrude transverse ribs;

[0010] The pressing wheel device is used to fix the transverse ribs attached to the surface of the winding tube;

[0011] Taking the output end of the winding tube production equipment as the starting point, along the output direction, the first side support wheel, the annular extruder head, the main support wheel, the pressing wheel device and the second side support wheel are coaxially arranged;

[0012] A plurality of axial through holes are arranged on the circumferential surfaces of the main support wheel, the side support wheel, the annular extruder head and the pressing wheel device, and the axial through holes form a circular array about the center of the support wheel where they are located;

[0013] The connecting screw passes through the axial through holes of the main bracket wheel, the side bracket wheel, the annular extruder head and the pressing wheel device, so that the side bracket wheel, the annular extruder head and the pressing wheel device rotate together with the main bracket wheel.

[0014] The HDPE corrugated pipe is produced from the winding pipe production equipment. The produced HDPE corrugated pipe enters the first side support wheel and the annular extruder head. The annular extruder head initially adheres the transverse ribs to the HDPE corrugated pipe. The axial distance between the annular extruder head and the pressing wheel device is used for air cooling. The transverse ribs extruded by the annular extruder head are shaped and finalized. When the extruded transverse ribs enter the range of the pressing wheel device at the axial point, the pressing wheel compacts and bonds the transverse ribs to the winding pipe to complete the finalization. Finally, it enters the cooling link of the winding pipe production equipment, and is thoroughly cooled and solidified by the long guide wheel / fan.

[0015] Preferably, the annular extruder head comprises:

[0016] The housing is fixed to the external frame and comprises at least two parts, which are assembled into a ring and contain a groove for accommodating the extrusion ring;

[0017] An extrusion ring is embedded in the shell, a connecting groove is arranged on the top surface of the ring, an extrusion die is installed on the inner ring, and the connecting groove is connected with the extrusion die;

[0018] The groove of the shell and the communicating groove of the extrusion ring cooperate to form an annular cavity;

[0019] An input hole is arranged on the shell body, the input hole is connected to an external plastic extruder, and the input hole is connected to the annular cavity.

[0020] Preferably, the extrusion ring includes two ring bodies, wherein the portion embedded in the housing groove is an outer ring body, and the outer ring body includes a connecting groove;

[0021] The inner ring body has a smaller diameter than the outer ring body, and the inner ring body is fixedly connected to the outer ring body;

[0022] The through hole is arranged on the inner ring body, and the extrusion die is installed on the inner ring of the inner ring body.

[0023] Preferably, a convex ring is integrally formed in the housing groove, the width of the convex ring matches the width of the connecting groove, and is inserted into the connecting groove; the convex ring is used to further reduce the problem of plastic overflow.

[0024] When assembling the annular extruder head, first insert the extrusion ring into one half of the shell, then put on the other half of the shell, connect the two shells so that they are fixed to each other and to the frame, and then install the extrusion die to the inner ring of the extrusion ring.

[0025] Preferably, the pressing wheel device comprises a mounting ring, a supporting roller, and a plurality of detachable pressing wheels;

[0026] A pressing wheel mounting hole is provided along the inner circle of the mounting ring body in the longitudinal direction, and the tail of the pressing wheel is inserted into the pressing wheel mounting hole and is detachably connected to the mounting ring body;

[0027] The supporting roller is arranged in the lower half of the mounting ring body and is tangent to the outer periphery of the mounting ring body. The width of the supporting roller is greater than the thickness of the mounting ring body. A groove is provided on the wheel surface of the supporting roller so that the supporting roller is inserted into the groove, thereby reducing the axial deviation of the side bracket wheel.

[0028] Preferably, the pressing wheel device includes two groups of identical structures. Assuming that the number of extruded transverse ribs is N, N is an even number and N>6, the pressing wheel responsible for the transverse ribs with odd numbers is arranged in the first pressing wheel device, and the pressing wheel responsible for the transverse ribs with even numbers is arranged in the second pressing wheel device;

[0029] The pressing wheels in the first pressing wheel device and the second pressing wheel device are arranged in a ring array on the same projection plane.

[0030] Preferably, the side support wheel includes a support wheel body and a pair of supporting rollers; the supporting rollers are arranged in the lower half of the support wheel body and are tangent to the outer periphery of the support wheel body. The width of the supporting rollers is greater than the thickness of the support wheel body, and a groove is provided on the wheel surface of the supporting roller so that the support wheel body is inserted into the groove, thereby reducing the axial displacement of the side support wheel.

[0031] As a preference, the front and back sides of the main support wheel are provided with convex rings of the same diameter; the front and back support wheel fixing frames are mirror images and relatively fixed;

[0032] The cross section of the bracket wheel fixing frame is a side concave structure, and the convex ring is inserted into the groove of the bracket wheel fixing frame

[0033] The servo motor provides power to the main bracket wheel and is connected to the main bracket wheel through a pulley.

[0034] As a preference, grooves of the same diameter are arranged on the front and back sides of the main support wheel, and the grooves are in the form of a circular ring on the main support wheel; the front and back support wheel fixing frames are mirror images and relatively fixed;

[0035] The cross section of the bracket wheel fixing frame is a side-mounted convex structure, the convex edge matches the groove, and the convex edge is stuck in the groove of the main bracket wheel;

[0036] The servo motor provides power to the main bracket wheel and is connected to the main bracket wheel through a pulley.

[0037] The beneficial effects of the utility model are: providing a device that can attach axial straight ribs to continuous non-cut finished products produced by winding tube production equipment, optimizing the arrangement of the pressing wheels for the situation where the winding tube has a small diameter and many axial straight ribs, reasonably using the axial space to ensure the shaping of the straight ribs, and reasonably arranging the positions to make the overall structure stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The general structure and position relationship diagram of the device;

[0039] Figure 2 Front view of the main support wheel;

[0040] Figure 3 Circumferential cross-sectional structure diagram of the main support wheel;

[0041] Figure 4 Front view of the side stand wheel;

[0042] Figure 5 The image after projection superposition of the pressure wheel device;

[0043] Figure 6 Press wheel assembly diagram;

[0044] Figure 7 A diagram of a first pressing wheel device and a second pressing wheel device;

[0045] Figure 8 Front view of the ring extruder head;

[0046] Fig. 9 Circumferential cross-sectional structure diagram of the annular extruder head;

[0047] In the figure: 100, support wheel fixing frame, 200, annular extruder head, 300, side support wheel, 400, pressure wheel device, 101, main support wheel, 102, pulley, 103, servo motor, 104, connecting screw, 101-1, axial through hole arranged on the circumferential surface of main support wheel, 110, side concave structure, 120, side convex structure, 201, shell, 202, extrusion ring, 203, extrusion die, 204, axial through hole arranged on the circumferential surface of annular extruder head, 205, input hole, a, winding tube, 207, annular cavity, 300-1, axial through hole arranged on the circumferential surface of side support wheel, 301, supporting roller, 401, mounting ring body, 402, pressure wheel, 403, supporting roller, 401-1, axial through hole 401-1 arranged on the circumferential surface of mounting ring body. DETAILED DESCRIPTION

[0048] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example

[0049] like Figure 1 The HDPE axial straight rib corrugated pipe forming equipment is adapted to the output end of the winding pipe production equipment, and includes:

[0050] The main support wheel 101 is in the form of a circular ring and is fixed to the output axis of the winding tube production equipment through the support wheel fixing frame 100;

[0051] like Figure 2 and Figure 3 The front and back sides of the main support wheel shown in (a) are provided with convex rings of the same diameter; the front and back support wheel fixing frames are mirror images and relatively fixed;

[0052] The cross section of the support wheel fixing frame is a side-mounted concave structure 110, and the convex ring is clamped into the groove of the support wheel fixing frame;

[0053] The servo motor 103 provides power for the main support wheel and is driven by the main support wheel through the pulley 102.

[0054] At least two Figure 4 The side support wheel 300 shown is in the form of a circular ring and is fixed to the output axis of the coiled tube production equipment through a frame;

[0055] The side support wheel includes a support wheel body and a pair of supporting rollers 301; the supporting rollers are arranged in the lower half of the support wheel body and are tangent to the outer periphery of the support wheel body. The width of the supporting rollers is greater than the thickness of the support wheel body, and a groove is provided on the wheel surface of the supporting roller so that the support wheel body is inserted into the groove, thereby reducing the axial deviation of the side support wheel.

[0056] The main support wheel, the side support wheel and the output axis of the winding tube production equipment are coaxial;

[0057] The annular extruder head 200 is used to extrude the transverse ribs and attach them to the outer peripheral surface of the winding tube a;

[0058] The pressing wheel device 400 is used to fix the transverse ribs attached to the surface of the winding tube;

[0059] Taking the output end of the winding tube production equipment as the starting point, along the output direction, the first side support wheel, the annular extruder head, the main support wheel, the pressing wheel device and the second side support wheel are coaxially arranged;

[0060] A plurality of axial through holes 101-1 are arranged on the circumferential surface of the main support wheel; a plurality of axial through holes 300-1 are arranged on the circumferential surface of the side support wheel; a plurality of axial through holes 204 are arranged on the circumferential surface of the annular extruder head; a plurality of axial through holes 401-1 are arranged on the circumferential surface of the mounting ring body of the pressure wheel device; the axial through holes form a circular array about the center of the support wheel.

[0061] The connecting screw 104 passes through the axial through holes of the main support wheel, the side support wheel, the annular extruder head and the pressing wheel device, so that the side support wheel, the annular extruder head and the pressing wheel device rotate together with the main support wheel.

[0062] like Figure 8 and Fig. 9 The annular extruder head shown includes:

[0063] The housing 201 is fixed to the external frame and comprises at least two parts, which are assembled into a ring shape and contain a groove for placing the extrusion ring;

[0064] Extrusion ring 202, the extrusion ring is embedded in the shell, a connecting groove is set on the top surface of the ring, and the inner ring is installed with an extrusion die 203, such as Fig. 9 The connecting groove shown in (a) is connected to the extrusion die, as shown in FIG. Fig. 9 (b) The surface of the extrusion ring is axially provided with axial through holes 204, and the axial through holes 204 are arranged at equal intervals on the extrusion ring;

[0065] The groove of the housing cooperates with the communicating groove of the extrusion ring to form an annular cavity 207;

[0066] An input hole 205 is provided on the housing, and the input hole is connected to an external plastic extruder, and the input hole is connected to the annular cavity.

[0067] The extrusion ring includes two ring bodies, wherein the part embedded in the housing groove is the outer ring body, and the outer ring body includes a connecting groove;

[0068] The inner ring body has a smaller diameter than the outer ring body, and the inner ring body is fixedly connected to the outer ring body;

[0069] The through hole is arranged on the inner ring body, and the extrusion die is installed on the inner ring of the inner ring body.

[0070] A convex ring is integrally formed in the housing groove, the width of which matches the width of the connecting groove and is inserted into the connecting groove; the convex ring is used to further reduce the problem of plastic overflow.

[0071] like Figure 5 , Figure 6 and Figure 7 The pressing wheel device shown includes a mounting ring 401, a supporting roller 403, and a plurality of detachable pressing wheels 402;

[0072] A pressing wheel mounting hole is provided along the radial direction of the inner ring of the mounting ring body, and the tail of the pressing wheel is inserted into the pressing wheel mounting hole and detachably connected with the mounting ring body;

[0073] The supporting roller is arranged in the lower half of the mounting ring body and is tangent to the outer periphery of the mounting ring body. The width of the supporting roller is greater than the thickness of the mounting ring body. A groove is provided on the wheel surface of the supporting roller so that the supporting roller is inserted into the groove, thereby reducing the axial deviation of the side bracket wheel.

[0074] The number of pressing wheel devices is 2. Assuming that the number of extruded transverse ribs is N, N is an even number and N>6, the pressing wheel responsible for the transverse ribs with odd numbers is set in the first pressing wheel device, and the pressing wheel responsible for the transverse ribs with even numbers is set in the second pressing wheel device;

[0075] The pressing wheels in the first pressing wheel device and the second pressing wheel device are arranged in a ring array on the same projection plane. Example

[0076] The difference between this embodiment and embodiment 1 is that different main support wheels and support wheel fixing frames are used. Figure 3 (b) The front and back sides of the main support wheel shown in FIG. 1 are provided with grooves of the same diameter, and the grooves are in the form of a circular ring on the main support wheel; the front and back support wheel fixing frames are mirror images and relatively fixed;

[0077] The cross section of the support wheel fixing frame is a side-mounted convex structure 120, the convex edge matches the groove, and the convex edge is stuck in the groove of the main support wheel;

[0078] The servo motor provides power to the main support wheel and is driven by the main support wheel through a pulley.

[0079] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A HDPE axial straight rib corrugated pipe forming equipment, adapted to the output end of the winding pipe production equipment, characterized in that: include: The main support wheel is in the form of a circular ring and is fixed on the output axis of the winding tube production equipment through the support wheel fixing frame; At least two side support wheels are in the form of circular rings and are fixed to the output axis of the winding tube production equipment through a frame; The main support wheel, the side support wheel and the output axis of the winding tube production equipment are coaxial; Ring extruder head, used to extrude transverse ribs; The pressing wheel device is used to fix the transverse ribs attached to the surface of the winding tube; Taking the output end of the winding tube production equipment as the starting point, along the output direction, the first side support wheel, the annular extruder head, the main support wheel, the pressing wheel device and the second side support wheel are coaxially arranged; A plurality of axial through holes are arranged on the circumferential surfaces of the main support wheel, the side support wheel, the annular extruder head and the pressing wheel device, and the axial through holes form a circular array about the center of the support wheel where they are located; The connecting screw passes through the axial through holes of the main bracket wheel, the side bracket wheel, the annular extruder head and the pressing wheel device, so that the side bracket wheel, the annular extruder head and the pressing wheel device rotate together with the main bracket wheel.

2. The HDPE axial straight rib corrugated pipe forming equipment according to claim 1, characterized in that: Ring extruder head, including: The housing is fixed to the external frame and comprises at least two parts, which are assembled into a ring and contain a groove for accommodating the extrusion ring; An extrusion ring is embedded in the shell, a connecting groove is arranged on the top surface of the ring, an extrusion die is installed on the inner ring, and the connecting groove is connected with the extrusion die; The groove of the shell and the communicating groove of the extrusion ring cooperate to form an annular cavity; An input hole is arranged on the shell body, the input hole is connected to an external plastic extruder, and the input hole is connected to the annular cavity.

3. The HDPE axial straight rib corrugated pipe forming equipment according to claim 2, characterized in that: The extrusion ring includes two ring bodies, wherein the part embedded in the housing groove is the outer ring body, and the outer ring body includes a connecting groove; The inner ring body has a smaller diameter than the outer ring body, and the inner ring body is fixedly connected to the outer ring body; The through hole is arranged on the inner ring body, and the extrusion die is installed on the inner ring of the inner ring body.

4. A HDPE axial straight rib corrugated pipe forming equipment according to claim 2 or 3, characterized in that: A convex ring is integrally formed in the housing groove, the width of which matches the width of the connecting groove and is inserted into the connecting groove; the convex ring is used to further reduce the problem of plastic overflow.

5. The HDPE axial straight rib corrugated pipe forming equipment according to claim 1, characterized in that: The pressing wheel device comprises a mounting ring, a supporting roller, and a plurality of detachable pressing wheels; A pressing wheel mounting hole is provided along the inner circle of the mounting ring body in the longitudinal direction, and the tail of the pressing wheel is inserted into the pressing wheel mounting hole and is detachably connected to the mounting ring body; The supporting roller is arranged in the lower half of the mounting ring body and is tangent to the outer periphery of the mounting ring body. The width of the supporting roller is greater than the thickness of the mounting ring body. A groove is provided on the wheel surface of the supporting roller so that the supporting roller is inserted into the groove, thereby reducing the axial deviation of the side bracket wheel.

6. The HDPE axial straight rib corrugated pipe forming equipment according to claim 5, characterized in that: The number of pressing wheel devices is 2. Assuming that the number of extruded transverse ribs is N, N is an even number and N>6, the pressing wheel responsible for the transverse ribs with odd numbers is set in the first pressing wheel device, and the pressing wheel responsible for the transverse ribs with even numbers is set in the second pressing wheel device; The pressing wheels in the first pressing wheel device and the second pressing wheel device are arranged in a ring array on the same projection plane.

7. The HDPE axial straight rib corrugated pipe forming equipment according to claim 1, characterized in that: The side support wheel includes a support wheel body and a pair of supporting rollers; the supporting rollers are arranged in the lower half of the support wheel body and are tangent to the outer periphery of the support wheel body. The width of the supporting rollers is greater than the thickness of the support wheel body, and a groove is opened on the wheel surface of the supporting roller so that the support wheel body is stuck in the groove, thereby reducing the axial deviation of the side support wheel.

8. The HDPE axial straight rib corrugated pipe forming equipment according to claim 1, characterized in that: The front and back sides of the main support wheel are provided with convex rings of the same diameter; the front and back support wheel fixing frames are mirror images and relatively fixed; The cross section of the bracket wheel fixing frame is a side concave structure, and the convex ring is inserted into the groove of the bracket wheel fixing frame The servo motor provides power to the main bracket wheel and is connected to the main bracket wheel through a pulley.

9. The HDPE axial straight rib corrugated pipe forming equipment according to claim 1, characterized in that: The front and back sides of the main support wheel are provided with grooves of the same diameter, and the grooves are in the form of a circular ring on the main support wheel; the front and back support wheel fixing frames are mirror images and relatively fixed; The cross section of the bracket wheel fixing frame is a side-mounted convex structure, the convex edge matches the groove, and the convex edge is stuck in the groove of the main bracket wheel; The servo motor provides power to the main bracket wheel and is connected to the main bracket wheel through a pulley.

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