Forming cage structure of socket type pipeline

Abstract

The utility model discloses a forming cage structure of a socket type pipeline, which comprises a frame body and a suspension support arm arranged on the frame body in a cantilever shape, the outer end of the suspension support arm is provided with a fixed disc which is coaxially arranged, a plurality of forming rollers parallel to the suspension support arm are rotatably arranged on the fixed disc, and the forming rollers are uniformly distributed along the circumferential direction of the suspension support arm; the forming roller comprises a main roller, the end, facing the frame body, of the main roller is sleeved with a sleeve roller capable of axially moving, and the end, away from the frame body, of the sleeve roller is a connection section with the diameter gradually decreased. A guide mechanism capable of transmitting torque in the circumferential direction is arranged between the main roller and the sleeve roller; the forming cage is provided with a feeding driving mechanism used for driving the sleeve roller to move in the axial direction of the main roller. The forming cage structure has the advantages of being reasonable in structural design, capable of continuously winding and forming pipe bodies and socket heads, beneficial to reducing production cost, improving production efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline production technical field, especially a socket type pipeline's forming cage structure. BACKGROUND

[0002] The composite winding pipe is a new type of special-shaped structure wall pipe material, has the advantages such as light weight, high pressure capacity, high interface quality, long service life, corrosion resistance, high ring stiffness, convenient construction, and is widely used in city water supply, drainage, long-distance water supply and farmland water conservancy irrigation engineering etc.. The composite winding pipe is spirally wound with strip-shaped profiles, and the side edges of the profiles of the next circle and the previous circle are mutually buckled and clamped to form a pipeline, in order to increase the strength of the connection, the buckling place is usually connected by adhesive.

[0003] At present, the composite winding pipe is formed and made by continuous winding process, for example, a kind of HDPE winding pipe production equipment disclosed in Chinese patent document, the publication number is CN108000858A, adopts driving assembly and drum, rotatable rotating roller is arranged between the two end plates of the drum, the rotating roller is uniformly distributed along the circumference, each rotating roller is driven to rotate synchronously in the same direction under the driving of the driving assembly, in the case that the drum does not rotate as a whole, the rotating roller is used to drive the strip material wound on the drum to continuously wind and form. The continuous forming process of the pipe body moves outward along the axial direction and continuously grows, in this way, the inner diameter of the pipe body must be consistent with the diameter of the circumscribed circle of the plurality of rotating rollers.

[0004] However, in engineering construction, the composite winding pipe is installed in sections, and the adjacent two end composite winding pipes need to be sealed and connected, therefore, the existing composite winding pipe needs to be separately made into a socket head with an inner diameter matched with the outer diameter of the composite winding pipe, and the socket head is welded to one end of the composite winding pipe, so as to facilitate the sealing and connection of the two pipe sections by the socket head in the construction process. The socket head needs to increase the socket head processing equipment, and the welding can only be completed by manual work, which not only affects the production efficiency, but also increases the production cost. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems of the prior art, the utility model solves the technical problems of how to provide a forming cage structure with reasonable structure design, which can continuously wind and form a pipe body and a socket head, is beneficial to reduce production cost and improve production efficiency.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The forming cage structure of a socket pipe comprises a frame body and a cylindrical forming cage, the forming cage comprises cantilevered suspension arms arranged on the frame body, the outer ends of the suspension arms are provided with coaxially arranged fixing discs, the fixing discs are rotatably provided with forming rollers parallel to the suspension arms, and the forming rollers are uniformly arranged along the circumferential direction of the suspension arms; the other ends of the forming rollers are rotatably arranged on the frame body, the frame body is provided with a rotary driving mechanism for driving the forming rollers to rotate in the same direction; the forming rollers comprise main rollers, the one ends of the main rollers towards the frame body are sleeved with axially movable sleeve rollers, the inner diameters of the sleeve rollers are consistent with the diameters of the main rollers, and the one ends away from the frame body are gradually tapered connection sections; the main rollers and the sleeve rollers are provided with a guide mechanism for transmitting torque in the circumferential direction, and the guide mechanism is located at the one ends of the main rollers and the sleeve rollers towards the frame body; the forming cage is provided with a feeding driving mechanism for driving the sleeve rollers to move along the axial direction of the main rollers.

[0008] In the above structure, since the sleeve rollers are sleeved on the main rollers, the outer diameters of the sleeve rollers are necessarily greater than the diameters of the main rollers, and the diameters of the circumscribed circles of the sleeve rollers are necessarily greater than the diameters of the circumscribed circles of the main rollers; since the one ends of the sleeve rollers away from the frame body are provided with gradually tapered connection sections, the diameters of the circumscribed circles of the connection sections are gradually reduced. During winding forming, the main rollers are wound at the positions close to the sleeve rollers, the rotary driving mechanism drives the main rollers to rotate in the same direction, the continuous strip is wound on the outer circumferential surface of the forming cage to form a pipe body, the pipe body moves outward along the direction away from the frame body, and subsequent pipe bodies are continuously formed. When the length of the pipe body reaches the expected length, the sleeve rollers are pushed outward at the speed of the forward movement of the pipe body through the feeding driving mechanism, the newly wound continuous strip gradually forms an enlarged pipe body under the action of the connection section, and is finally wound on the sleeve roller to form an integrated socket pipe body.

[0009] Further, the feeding driving mechanism comprises a push disc coaxially sleeved on the outer side of the suspension arm, the push disc is provided with a clearance hole corresponding to the main roller, the one end of the sleeve roller towards the frame body is rotatably matched on the clearance hole through a bearing, and the frame body is provided with a linear extension and contraction mechanism arranged in parallel with the suspension arm, and the push disc is connected to the extension and contraction end of the linear extension and contraction mechanism.

[0010] The sleeve roller is installed on the clearance hole of the push disc through a bearing, so that the sleeve roller can rotate with the main roller and move along the axial direction of the main roller under the action of the push disc. All the sleeve rollers are connected through the push disc, so that the linear extension and contraction mechanism can drive all the sleeve rollers to move simultaneously.

[0011] Further, the push disc is provided with a first reinforcing rib arranged in the radial direction and a second reinforcing rib arranged in the circumferential direction, the first reinforcing rib is arranged in multiple along the circumferential direction of the push disc, and the second reinforcing rib is arranged in multiple along the radial direction.

[0012] Thus, the rigidity of the push disc can be increased by the first and second reinforcing ribs, so that the deformation of the push disc during axial movement is avoided, the smoothness of the operation is ensured, and the service life is prolonged.

[0013] Further, the push disc has push rods arranged in parallel with the suspension arms on one side of the push disc, and a plurality of push rods are arranged in the circumferential direction of the push disc, the plurality of push rods penetrate into the frame, and a push-pull disc is installed.

[0014] Thus, the push-pull disc can uniformly disperse the pushing force or pulling force of the linear extension mechanism through the circumferentially arranged push rods, so that the push disc can move more stably, the damage caused by uneven load is avoided, and the service life is prolonged.

[0015] Further, the linear extension mechanism is a hydraulic cylinder.

[0016] Further, the guide mechanism is an external spline arranged on the main roller and an internal spline arranged on the sleeve roller.

[0017] Thus, the power can be transmitted more stably by the cooperation of the internal and external splines.

[0018] Further, the sleeve roller includes a shaped sleeve and a first guide sleeve, the shaped sleeve is integrally connected to the connecting section, the internal spline is arranged on the first guide sleeve, and the first guide sleeve is fixedly connected to the shaped sleeve.

[0019] Further, the main roller includes a roller body and a second guide sleeve sleeved on the roller body, the external spline is arranged on the second guide sleeve, and the second guide sleeve is fixed to the roller body by bolts.

[0020] With this structure, the existing winding device can be easily upgraded, thereby greatly reducing the cost of equipment.

[0021] Further, one end of the main roller penetrates into the frame, the rotary driving mechanism includes a driven sprocket arranged on the main roller and a driving motor, the output end of the driving motor is provided with a driving sprocket, and the driving sprocket and a plurality of driven sprockets are connected by a chain.

[0022] Further, the sleeve roller has an insertion shaft segment matched with the let-hole, the insertion shaft segment is arranged in the let-hole, the insertion shaft segment has a relatively protruding blocking ring, both sides of the let-hole have a thrust bearing arranged on the insertion shaft segment, one of the thrust bearings is abutted between the blocking ring and the push disc, the other thrust bearing is provided with a blocking ring on the side away from the push disc, and the blocking ring is fixedly installed on the sleeve roller.

[0023] In this way, the thrust bearings are arranged on both sides of the push disc, the friction between the sleeve roller and the push disc during the pushing and pulling of the push disc is reduced, and the winding and forming is more smooth.

[0024] In conclusion, the forming cage structure has the advantages of reasonable structure design, continuous winding and forming of the pipe body and the socket, reduced production cost, improved production efficiency and the like. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of the embodiment.

[0026] Figure 2 It is a sectional structure schematic view of the embodiment.

[0027] Figure 3 It is a structure schematic view of the push disc and the forming roller.

[0028] Figure 4 It is an exploded structure schematic view of Figure 3

[0029] Figure 5 It is a schematic view of the sprocket arrangement. DETAILED DESCRIPTION

[0030] The utility model will be further explained in detail in combination with the embodiment.

[0031] In the specific implementation: for example, Figures 1-5 ​As shown, a forming cage structure of a socket pipe includes a frame body 1 and a cylindrical forming cage 2, the forming cage 2 includes a cantilevered suspension arm 21 arranged on the frame body 1, the outer end of the suspension arm 21 is provided with a coaxially arranged fixing disc 22, the fixing disc 22 is rotatably provided with a forming roller 23 parallel to the suspension arm 21, and a plurality of forming rollers 23 are uniformly arranged along the circumference of the suspension arm 21; the other end of the forming roller 23 is rotatably arranged on the frame body 1, and the frame body 1 is provided with a rotary driving mechanism for driving a plurality of forming rollers 23 to rotate in the same direction; the forming roller 23 includes a main roller 231, an axially movable sleeve roller 232 is sleeved on one end of the main roller 231 towards the frame body 1, the inner diameter of the sleeve roller 232 is consistent with the diameter of the main roller 231, and the other end away from the frame body 1 is a gradually tapered connecting section 233; the main roller 231 and the sleeve roller 232 have a guide mechanism for transmitting torque in the circumferential direction, and the guide mechanism is located at one end of the main roller 231 and the sleeve roller 232 towards the frame body 1; the forming cage 2 is provided with a feeding driving mechanism 4 for driving the sleeve roller 232 to move along the axial direction of the main roller 231.

[0032] The feeding driving mechanism 4 includes a push disc 41 coaxially sleeved outside the suspension arm 21, the push disc 41 is provided with a clearance hole corresponding to the main roller 231, and the one end of the sleeve roller 232 towards the frame body 1 is rotatably matched on the clearance hole through a bearing; the frame body 1 is provided with a linear extension mechanism arranged parallel to the suspension arm 21, and the push disc 41 is connected to the extension end of the linear extension mechanism. The sleeve roller is installed on the clearance hole of the push disc through a bearing, so that the sleeve roller can rotate with the main roller and move axially along the main roller under the action of the push disc. All sleeve rollers are connected together through the push disc, so that the linear extension mechanism can drive all sleeve rollers to move together.

[0033] In order to increase the overall stiffness of the push disc 41, the push disc 41 is provided with a first reinforcing rib extending in the radial direction and a second reinforcing rib extending in the circumferential direction, a plurality of first reinforcing ribs are arranged along the circumferential direction of the push disc 41, and a plurality of second reinforcing ribs are arranged along the radial direction. The first reinforcing rib and the second reinforcing rib can increase the stiffness of the push disc, avoid deformation of the push disc during axial movement, affect the smoothness of the action, and prolong the service life.

[0034] The side of the push disc 41 towards the frame body 1 is provided with a push rod 42 arranged parallel to the suspension arm 21, a plurality of push rods 42 are uniformly arranged along the circumference of the push disc 41, a plurality of push rods 42 penetrate into the frame body 1, and a push-pull disc 43 is installed; Figure 2As shown, the straight line telescopic mechanism in the figure is a hydraulic cylinder. The push-pull disc can evenly disperse the pushing force or pulling force of the straight line telescopic mechanism to the push disc through the circumferentially arranged push rods, so that the push disc can move more smoothly and avoid damage caused by uneven load, which is beneficial to prolong the service life.

[0035] The guide mechanism is an external spline arranged on the main roller 231 and an internal spline arranged on the sleeve roller 232. As shown in the figure, Figure 3 and Figure 4 As shown, the sleeve roller 232 includes a forming sleeve and a first guide sleeve 234, the forming sleeve is integrally connected to the connecting section 233; the internal spline is arranged on the first guide sleeve 234, and the first guide sleeve 234 is fixedly connected to the forming sleeve. The main roller 231 includes a roller body and a second guide sleeve 235 sleeved on the roller body; the external spline is arranged on the second guide sleeve 235, and the second guide sleeve 235 is fixed on the roller body by bolts.

[0036] In this way, the forming mechanism for the continuous forming pipe with a constant inner diameter in the prior art (such as the rotating roller in CN108000858A) can be improved. By installing a second guide sleeve on the main roller of the existing device, and cooperatively sleeving a first guide sleeve and a sleeve roller, and adding a push disc, a push rod and a hydraulic cylinder, low-cost modification of the existing equipment can be realized, which not only reduces production cost, but also improves production efficiency. Moreover, the continuous winding and forming of the socket head and the pipe body has higher connection strength, so as to improve product quality and market competitiveness.

[0037] The sleeve roller 232 has a plug-in shaft section matched with the accommodation hole, and the plug-in shaft section is arranged in the accommodation hole; the plug-in shaft section has a protruding retaining ring 236, and the accommodation hole has a push bearing 237 sleeved on the plug-in shaft section on both sides, one of the push bearings 237 abuts between the retaining ring 236 and the push disc 41, and the other push bearing 237 is provided with a retaining ring on the side away from the push disc 41, and the retaining ring is fixedly installed on the sleeve roller 232. In this way, the push bearings are arranged on both sides of the push disc, which can reduce the friction between the sleeve roller and the push disc during the pushing and pulling of the push disc, so as to make the winding and forming more smooth.

[0038] One end of the main roller 231 extends into the frame body 1, and the rotary drive mechanism includes a driven sprocket arranged on the main roller 231 and a driving motor, and the output end of the driving motor is provided with a driving sprocket, and the driving sprocket and a plurality of driven sprockets are connected with a chain, as shown in the figure, Figure 5As shown, the adjacent two main rollers 231 are provided with auxiliary wheels, the chain sequentially passes through the driven sprocket and auxiliary wheel, and at least one auxiliary wheel or driven sprocket is connected with the driving motor. That is, the auxiliary wheel or driven sprocket connected with the driving motor is the driving sprocket.

[0039] The structure of the forming cage in the embodiment is that the sleeve rollers are sleeved on the main rollers, the outer diameter of the sleeve rollers is necessarily greater than the diameter of the main rollers, the diameters of the circumscribed circles of the sleeve rollers are necessarily greater than the diameters of the circumscribed circles of the main rollers, the sleeve rollers have the connecting sections with the gradually reduced diameters away from the end of the frame body, and the diameters of the circumscribed circles of the connecting sections are gradually reduced. When winding and forming, the continuous strip is wound at the positions where the main rollers are close to the sleeve rollers, the rotating driving mechanism drives the main rollers to rotate in the same direction, the continuous strip is wound and formed on the outer surface of the forming cage, the formed pipe body moves outward along the direction away from the frame body, and the subsequent pipe bodies are continuously formed. When the length of the pipe body reaches the expected length, the sleeve rollers are pushed outward at the speed of the forward movement of the pipe body through the feeding driving mechanism, the newly wound continuous strip gradually forms the pipe body with the expanded diameter under the action of the connecting section, and the continuous strip is finally wound on the sleeve roller to form the socket and spigot pipe body.

[0040] The above is only the preferred embodiment of the utility model, and the utility model is not limited, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A forming cage structure of a socket pipe, comprising a frame body (1) and a cylindrical forming cage (2), characterized in that, The forming cage (2) comprises a cantilever-shaped suspension arm (21) arranged on the frame body (1), the outer end of the suspension arm (21) is provided with a coaxial fixing disc (22), the fixing disc (22) is rotatably provided with a forming roller (23) parallel to the suspension arm (21), and a plurality of forming rollers (23) are uniformly arranged along the circumference of the suspension arm (21); the other end of the forming roller (23) is rotatably arranged on the frame body (1), and the frame body (1) is provided with a rotary driving mechanism for driving a plurality of forming rollers (23) to rotate in the same direction; the forming roller (23) comprises a main roller (231), an axially movable sleeve roller (232) is sleeved on one end of the main roller (231) facing the frame body (1), the inner diameter of the sleeve roller (232) is consistent with the diameter of the main roller (231), and the other end away from the frame body (1) is a gradually tapered connecting section (233); the main roller (231) and the sleeve roller (232) have a guide mechanism for transmitting torque in the circumferential direction, and the guide mechanism is located at one end of the main roller (231) and the sleeve roller (232) facing the frame body (1); the forming cage (2) is provided with a feeding driving mechanism (4) for driving the sleeve roller (232) to move along the axial direction of the main roller (231).

2. The bell and spigot pipe forming cage structure as claimed in claim 1, wherein, The feeding driving mechanism (4) comprises a push disc (41) coaxially sleeved outside the suspension arm (21), the push disc (41) is provided with a clearance hole corresponding to the main roller (231), and one end of the sleeve roller (232) facing the frame body (1) is rotatably matched on the clearance hole through a bearing; the frame body (1) is provided with a linear extension mechanism arranged parallel to the suspension arm (21), and the push disc (41) is connected to the extension end of the linear extension mechanism.

3. The bell and spigot pipe forming cage structure as claimed in claim 2, wherein, The push disc (41) is provided with a first reinforcing rib extending in the radial direction and a second reinforcing rib extending in the circumferential direction, a plurality of first reinforcing ribs are arranged along the circumference of the push disc (41), and a plurality of second reinforcing ribs are arranged along the radial direction.

4. The bell and spigot pipe forming cage structure as claimed in claim 2, wherein, One side of the push disc (41) facing the frame body (1) is provided with a push rod (42) arranged parallel to the suspension arm (21), a plurality of push rods (42) are uniformly arranged along the circumference of the push disc (41), and a plurality of push rods (42) penetrate into the frame body (1) and are provided with a push-pull disc (43); the extension end of the linear extension mechanism is connected to the push-pull disc (43).

5. The bell and spigot pipe forming cage structure as claimed in claim 4, wherein, The linear extension mechanism is a hydraulic cylinder.

6. The bell and spigot pipe forming cage structure as claimed in claim 2, wherein, The guide mechanism is an external spline arranged on the main roller (231) and an internal spline arranged on the sleeve roller (232).

7. The bell and spigot pipe forming cage structure as claimed in claim 6, wherein, The sleeve roller (232) comprises a forming sleeve and a first guide sleeve (234), the forming sleeve is integrally connected to the connecting section (233); the internal spline is arranged on the first guide sleeve (234), and the first guide sleeve (234) is fixedly connected to the forming sleeve.

8. The bell and spigot pipe forming cage structure as claimed in claim 6, wherein, The main roller (231) comprises a roller body and a second guide sleeve (235) sleeved on the roller body; the outer spline is arranged on the second guide sleeve (235), and the second guide sleeve (235) is fixed on the roller body by bolts.

9. The bell and spigot pipe forming cage structure as claimed in claim 1, wherein, One end of the main roller (231) extends into the frame body (1), and the rotary driving mechanism comprises a driven sprocket arranged on the main roller (231) and a driving motor, an output end of the driving motor is provided with a driving sprocket, and the driving sprocket and a plurality of driven sprockets are connected with a chain.

10. The bell and spigot pipe forming cage structure as claimed in claim 2, wherein, The sleeve roller (232) is provided with an insertion shaft segment matched with the accommodation hole, the insertion shaft segment is arranged in the accommodation hole, the insertion shaft segment is provided with a stop ring (236) protruding oppositely, both sides of the accommodation hole are provided with a thrust bearing (237) sleeved on the insertion shaft segment, one of the thrust bearings (237) is abutted between the stop ring (236) and a push disc (41), and the other thrust bearing (237) is provided with a stop ring away from one side of the push disc (41), and the stop ring is fixedly installed on the sleeve roller (232).

Images