Ultrasonic welding machine for reinforcing belt of plastic composite pipe

Abstract

The utility model discloses an ultrasonic welding machine for a reinforcing band of a plastic composite pipe, and belongs to the technical field of plastic base pipe forming. A through hole for a base pipe to pass through is formed in the center of the rotary body, and multiple layers of staggered winding reinforcing belts are arranged on the surface of the base pipe; the multiple ultrasonic welding mechanisms are arranged on the rotary body, each ultrasonic welding mechanism comprises a longitudinal adjusting assembly, a transverse adjusting assembly and a welding head, the longitudinal adjusting assemblies are arranged on the rotary body, the transverse adjusting assemblies are connected with the longitudinal adjusting assemblies, and the welding heads are arranged on the transverse adjusting assemblies; the welding heads are arranged in a staggered mode and make contact with the reinforcing belts on the different layers so as to conduct ultrasonic welding. Due to the fact that the reinforcing belts and the base pipe do not need to be preheated respectively, the problem that gaps between adjacent belts are changed after winding due to the fact that the preheated reinforcing belts are heated and stretched under the action of tension is solved, the problem that the base pipe is stretched and deformed due to heating in the forward traction process is also solved, and the quality of the formed composite pipe is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the plastic base pipe forming technical field, concretely relates to a kind of plastic composite pipe reinforcing tape ultrasonic welding machine. BACKGROUND

[0002] Plastic composite pipe is usually prepared into reinforcing tape by coating PE with glass fiber or polyester filament as reinforcing material, and the reinforcing tape is uniformly wound on base pipe at certain winding angle and winding tension, and to achieve the effect of reinforcement, the reinforcing tape needs to be fusion bonded with base pipe.

[0003] The current production process usually includes preheating treatment of reinforcing tape and base pipe, and then the reinforcing tape is spirally wound on the surface of base pipe by winding machine along with the linear conveying of base pipe and the rotating action of winding machine, so that stable composite pipe structure is formed after cooling. However, this forming method has the following main defects:

[0004] 1. Gap problem caused by change of reinforcing tape width:

[0005] During winding process, the reinforcing tape needs to maintain a certain tension, which will cause the preheated reinforcing tape to be stretched and narrowed. After winding on the surface of base pipe, gap may occur between adjacent reinforcing tapes, which will affect the overall quality and reinforcing effect of composite pipe.

[0006] 2. Base pipe quality problem caused by thermal deformation and traction force:

[0007] During linear conveying of base pipe, the base pipe will be subjected to continuous traction force. For the base pipe that has been preheated, it is more prone to thermal deformation, especially under the influence of traction force, the base pipe may be excessively stretched, which will damage the dimensional accuracy and mechanical properties of the final product. INVENTION CONTENTS

[0008] The utility model is proposed to solve the above problems existing in the prior art, and provides a plastic composite pipe reinforcing tape ultrasonic welding machine capable of ensuring that base pipe is not deformed and the gap between adjacent reinforcing tapes is controlled.

[0009] The utility model can be realized by the following technical solutions:

[0010] A plastic composite pipe reinforcing tape ultrasonic welding machine comprises:

[0011] A rotary body with a through hole in the center for base pipe to pass through, and the surface of base pipe has multiple layers of reinforcing tapes wound in staggered manner;

[0012] The ultrasonic welding mechanism is provided with a plurality of longitudinal adjusting assemblies, transverse adjusting assemblies and welding heads on the rotary body.

[0013] Each welding head is arranged in dislocation and contacts with the reinforcing tape of different layers to perform ultrasonic welding.

[0014] As a further improvement of the utility model, the longitudinal adjusting assembly is perpendicular to the conveying direction of the base pipe, and the linear distance between the welding head and the base pipe is adjusted through the longitudinal adjusting assembly.

[0015] As a further improvement of the utility model, the transverse adjusting assembly is perpendicular to the longitudinal adjusting assembly and parallel to the base pipe, and the welding point position of the welding head on the base pipe is adjusted through the transverse adjusting assembly.

[0016] As a further improvement of the utility model, the longitudinal adjusting assembly comprises:

[0017] A longitudinal linear module is arranged on the rotary body and is perpendicular to the conveying direction of the base pipe.

[0018] A longitudinal moving seat is arranged on the longitudinal linear module, and the longitudinal linear module is driven by a motor and moves the longitudinal moving seat.

[0019] As a further improvement of the utility model, the transverse adjusting assembly comprises:

[0020] A transverse linear module is connected with the longitudinal moving seat.

[0021] A transverse moving seat is arranged on the transverse linear module, and the transverse linear module is driven by a motor and moves the transverse moving seat.

[0022] As a further improvement of the utility model, the welding head is arranged on the transverse moving seat, and the welding head is perpendicular to the base pipe.

[0023] As a further improvement of the utility model, the contact surface of the welding head is arranged as a curved surface with the same curvature as the base pipe, and with the linear conveying of the base pipe and the continuous rotation of the rotary body, the contact surface of the welding head always presses the reinforcing tape.

[0024] As a further improvement of the utility model, the driving mechanism is connected with the rotary body and is used for driving the rotary body to rotate.

[0025] As a further improvement of the utility model, the driving mechanism comprises:

[0026] a drive motor and a speed reducer;

[0027] a first sprocket wheel, the drive motor being connected with the first sprocket wheel through the speed reducer;

[0028] a second sprocket wheel, which is arranged on the slewing body and is located in the same vertical plane as the first sprocket wheel;

[0029] a transmission chain, which is transmissionally connected between the first sprocket wheel and the second sprocket wheel.

[0030] As a further improvement of the present application, a tensioning wheel is arranged between the first sprocket wheel and the second sprocket wheel and is used for tensioning the transmission chain.

[0031] Compared with the prior art, the present application has the following beneficial effects:

[0032] 1. The quality of the composite pipe is ensured: the ultrasonic welding is only performed on the contact surface of the reinforcing belt and the base pipe and the contact surface of adjacent reinforcing belts, and the reinforcing belt and the base pipe do not need to be heated in advance, thereby avoiding the problem that the reinforcing belt after being heated in advance is stretched under the action of tension, resulting in the change of the gap between adjacent belts after winding, and avoiding the problem that the base pipe is stretched and deformed due to heating during the process of being pulled forward, thereby ensuring the quality of the composite pipe after forming;

[0033] 2. The cost is reduced: due to the fact that the reinforcing belt and the base pipe do not need to be heated separately, the corresponding heating equipment is reduced, especially when the base pipe is heated in advance, an infrared heating cylinder through which the base pipe passes needs to be arranged, and the cost of such an infrared heating cylinder is relatively high, while the present application only needs to arrange a plurality of ultrasonic welding mechanisms, thereby greatly reducing the production cost;

[0034] 3. The welding quality is improved: the ultrasonic welding is performed on the contact surface of the reinforcing belt and the base pipe, which can ensure that the welding surfaces of the two are uniformly heated, thereby improving the welding quality;

[0035] 4. Energy saving and high efficiency: compared with the traditional heating and welding, the ultrasonic welding consumes less energy and is faster, and is also more environmentally friendly and safe. BRIEF DESCRIPTION OF DRAWINGS

[0036] Fig. 1 is a side view of the plastic composite pipe reinforcing belt ultrasonic welding machine of the present application;

[0037] Fig. 2 is a front view of the plastic composite pipe reinforcing belt ultrasonic welding machine of the present application.

[0038] In the diagram, 100 is the rotating body; 110 is the drive motor; 120 is the reducer; 130 is the first sprocket; 140 is the second sprocket; 150 is the transmission chain; and 160 is the tensioner.

[0039] 200. Ultrasonic welding mechanism; 210. Longitudinal adjustment assembly; 211. Longitudinal linear module; 212. Longitudinal moving seat; 220. Lateral adjustment assembly; 221. Lateral linear module; 222. Lateral moving seat; 230. Welding head;

[0040] 300. Base tube. Detailed Implementation

[0041] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0042] like Figs. 1-2 As shown, this utility model provides an ultrasonic welding machine for reinforcing plastic composite pipes, comprising:

[0043] The rotating body 100 has a through hole at its center for the base tube 300 to pass through, and the surface of the base tube 300 has a multi-layered staggered winding reinforcing strip;

[0044] The ultrasonic welding mechanism 200 has multiple components on the rotating body 100. The ultrasonic welding mechanism 200 includes a longitudinal adjustment component 210, a transverse adjustment component 220, and a welding head 230. The longitudinal adjustment component 210 is disposed on the rotating body 100, the transverse adjustment component 220 is connected to the longitudinal adjustment component 210, and the welding head 230 is disposed on the transverse adjustment component 220.

[0045] Each welding head 230 is staggered and contacts different layers of reinforcing strips for ultrasonic welding.

[0046] It should be noted that when the base tube 300 passes through the rotating body 100, its surface is already wrapped with multiple layers of reinforcing strips. That is, the welding machine provided in this embodiment only has the welding function. In actual operation, as the base tube 300 is conveyed in a straight line, the rotating body 100 continues to rotate, and the welding head 230 can rotate in a spiral around the surface of the base tube 300, thereby matching the winding trajectory of the reinforcing strip and realizing ultrasonic welding of the reinforcing strip.

[0047] Since the base tube 300 has multiple layers of reinforcing strips wrapped around its surface, each layer of reinforcing strip needs to be welded separately using a welding head 230. Therefore, the welding heads 230 are staggered and used to weld one layer of reinforcing strip respectively, thus achieving the welding of each reinforcing strip.

[0048] It is worth mentioning that in the prior art, the reinforcing belt and the base pipe 300 need to be preheated respectively, and then the winding machine can spiral the reinforcing belt on the surface of the base pipe 300 along with the linear conveying and the rotating action of the winding machine. However, this forming method has the following problems: on the one hand, the preheated reinforcing belt is narrowed due to stretching during winding, resulting in a gap between adjacent reinforcing belts after winding; on the other hand, the preheated base pipe 300 is easily deformed due to the traction force during linear conveying, resulting in the problem of overstretching of the base pipe 300.

[0049] Compared with the prior art, the ultrasonic welding machine provided in the embodiment has at least the following advantages:

[0050] 1. Ensuring the quality of the composite pipe: ultrasonic welding is only performed on the contact surface of the reinforcing belt and the base pipe 300 and the contact surface of adjacent reinforcing belts, and the reinforcing belt and the base pipe 300 do not need to be preheated respectively, thereby avoiding the problem of change in the gap between adjacent reinforcing belts after winding due to the heated stretching of the preheated reinforcing belt under tension, and avoiding the problem of stretching deformation of the base pipe 300 due to heating during forward traction, thereby ensuring the quality of the formed composite pipe.

[0051] 2. Reducing costs: since the reinforcing belt and the base pipe 300 do not need to be heated respectively, the corresponding heating equipment is reduced, especially when preheating the base pipe 300, an infrared heating cylinder through which the base pipe 300 passes needs to be provided, and the cost of such an infrared heating cylinder is relatively high. However, the present application only needs to provide a plurality of ultrasonic welding mechanisms 200, thereby greatly reducing the production cost.

[0052] 3. Improving the welding quality: ultrasonic welding is performed on the contact surface of the reinforcing belt and the base pipe 300, which can ensure uniform heating of the welding surface of the two, thereby improving the welding quality.

[0053] 4. Energy saving and high efficiency: compared with traditional heating and welding, ultrasonic welding consumes less energy and is faster, and is also more environmentally friendly and safe.

[0054] Preferably, the longitudinal adjusting assembly 210 is perpendicular to the conveying direction of the base pipe 300, and the longitudinal adjusting assembly 210 adjusts the linear distance between the welding head 230 and the base pipe 300, so that the welding head 230 can always press the reinforcing belt against the base pipe 300 during the welding operation, thereby ensuring the welding quality of the reinforcing belt.

[0055] On the other hand, by adjusting the flexibility of the longitudinal adjustment assembly 210, the welding machine can easily cope with different diameters of the base pipe 300, when replacing base pipes 300 of different sizes, the operator only needs to adjust the position of the longitudinal adjustment assembly 210, so that the welding head 230 is in correct contact with the outer surface of the reinforcing belt wound on the new base pipe 300, and the high-quality welding work can continue.

[0056] Preferably, the transverse adjustment assembly 220 is perpendicular to the longitudinal adjustment assembly 210 and parallel to the base pipe 300, and adjusts the welding position of the welding head 230 on the base pipe 300 through the transverse adjustment assembly 220. It should be noted that since the multi-layer reinforcing belt is spirally wound on the base pipe 300 at a certain winding angle, each welding head 230 needs to be arranged in a staggered manner to ensure that each welding head 230 can accurately weld the corresponding reinforcing belt layer. The transverse adjustment assembly 220 can realize the staggered arrangement of the welding head 230, ensuring the independent and high-quality welding of each layer of reinforcing belt.

[0057] On the other hand, for different widths of reinforcing belts or different winding angles, the transverse adjustment assembly 220 can flexibly adjust the position of the welding head 230 to ensure that the welding position always matches the actual position of the reinforcing belt, which not only improves the welding precision, but also increases the adaptability of the equipment to different types of base pipe 300 and reinforcing belt combinations.

[0058] In general, the longitudinal adjustment assembly 210 and the transverse adjustment assembly 220 provide independent adjustment capability of the welding head 230 in two directions. This arrangement allows the welding head 230 to make precise position adjustments on the surface of the base pipe 300 to adapt to base pipes 300 of different diameters, reinforcing belts of different widths or winding angles.

[0059] The following is the specific structural design of the longitudinal adjustment assembly 210 and the transverse adjustment assembly 220:

[0060] Preferably, the longitudinal adjustment assembly 210 includes:

[0061] The longitudinal linear module 211 is arranged on the rotary body 100 and perpendicular to the conveying direction of the base pipe 300;

[0062] The longitudinal moving seat 212 is arranged on the longitudinal linear module 211, and the longitudinal linear module 211 is driven by the motor to move the longitudinal moving seat 212.

[0063] Preferably, the transverse adjustment assembly 220 includes:

[0064] The transverse linear module 221 is connected with the longitudinal moving seat 212;

[0065] The transverse moving seat 222 is arranged on the transverse linear module 221, and the transverse linear module 221 is driven by the motor to move.

[0066] Preferably, the welding head 230 is arranged on the transverse moving seat 222, and the welding head 230 is perpendicular to the base pipe 300, that is, the movement of the longitudinal moving seat 212 can drive the transverse moving seat 222 and the welding head 230 to move longitudinally synchronously, and the movement of the transverse moving seat 222 can drive the welding head 230 to move transversely synchronously.

[0067] Preferably, the contact surface of the welding head 230 is arranged as a curved surface with the same curvature as the base pipe 300, so that the contact surface of the welding head 230 can press the reinforcing belt tightly all the time, ensuring that the reinforcing belt and the base pipe 300 and the adjacent reinforcing belts can maintain good contact, thereby improving the stability and quality of welding, and effectively reducing the bubbles and voids that may occur during welding, thereby ensuring the quality of the base pipe 300.

[0068] Preferably, the system further comprises a driving mechanism connected with the rotary body 100 and used for driving the rotary body 100 to rotate, and the driving mechanism comprises:

[0069] The driving motor 110 and the speed reducer 120 are used as a power source, the driving motor 110 reduces the rotating speed and increases the torque through the speed reducer 120, and the application of the speed reducer 120 enables the system to output greater torque at a lower speed, thereby ensuring the stable operation of the rotary body 100.

[0070] The first sprocket 130 is connected with the driving motor 110 through the speed reducer 120.

[0071] The second sprocket 140 is arranged on the rotary body 100, and the first sprocket 130 and the second sprocket 140 are located on the same vertical plane.

[0072] The transmission chain 150 is arranged between the first sprocket 130 and the second sprocket 140.

[0073] The driving motor 110 drives the first sprocket 130 to rotate, and then the second sprocket 140 is driven to rotate through the transmission chain 150, thereby realizing the rotation of the rotary body 100.

[0074] Preferably, the system further comprises a tensioning wheel 160 located between the first sprocket 130 and the second sprocket 140, and the tensioning wheel 160 maintains the tension of the transmission chain 150 by applying appropriate pressure, which prevents the chain from jumping teeth or disengaging due to slack, thereby ensuring the continuity and stability of power transmission.

[0075] The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above technical means, and also include technical schemes composed of any combination of the above technical features. The above is the specific implementation of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, some improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements are also considered within the protection scope of the utility model.

[0076] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0077] In addition, the description of "one", "a", "an" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "one", "a" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0078] In the utility model, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary technical personnel in the field, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0079] In addition, the technical solutions of each embodiment of the utility model can be combined with each other, but it must be based on the realization of ordinary technical personnel in the field, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the utility model.

Claims

1. An ultrasonic welding machine for reinforcing plastic composite pipes, characterized in that, include: The rotating body has a through hole at its center for the base tube to pass through, and the surface of the base tube has multiple layers of staggered winding reinforcing strips; An ultrasonic welding mechanism is provided on the rotating body, and the ultrasonic welding mechanism includes a longitudinal adjustment component, a transverse adjustment component, and a welding head. The longitudinal adjustment component is provided on the rotating body, the transverse adjustment component is connected to the longitudinal adjustment component, and the welding head is provided on the transverse adjustment component. Each of the aforementioned welding heads is staggered and contacts different layers of reinforcing strips for ultrasonic welding.

2. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 1, characterized in that, The longitudinal adjustment component is perpendicular to the base pipe conveying direction, and the straight-line distance between the welding head and the base pipe is adjusted by the longitudinal adjustment component.

3. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 1, characterized in that, The lateral adjustment component is perpendicular to the longitudinal adjustment component and parallel to the base tube, and the welding point position of the welding head on the base tube is adjusted by the lateral adjustment component.

4. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 1, characterized in that, The longitudinal adjustment component includes: A longitudinal linear module is mounted on the rotating body and is perpendicular to the base pipe conveying direction; A longitudinal moving seat is mounted on the longitudinal linear module, and the longitudinal linear module is driven by a motor, which in turn moves the longitudinal moving seat.

5. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 4, characterized in that, The lateral adjustment component includes: A transverse linear module, which is connected to the longitudinal movable seat; A transverse moving seat is disposed on the transverse linear module, and the transverse linear module is driven by a motor to move the transverse linear module electrically.

6. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 5, characterized in that, The welding head is disposed on the transverse moving seat and is perpendicular to the base tube.

7. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 1, characterized in that, The contact surface of the welding head is set as a curved surface with the same curvature as the base tube. As the base tube is conveyed in a straight line and the rotating body continues to rotate, the contact surface of the welding head will always press the reinforcing band tightly.

8. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 1, characterized in that, It also includes a drive mechanism, which is connected to the rotating body and used to drive the rotating body to rotate.

9. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 8, characterized in that, The drive mechanism includes: Drive motor and reducer; The first sprocket is connected to the drive motor via the reducer. The second sprocket is disposed on the rotating body, and the first sprocket and the second sprocket are located in the same vertical plane; A drive chain is used to drive the first sprocket and the second sprocket together.

10. The ultrasonic welding machine for reinforcing plastic composite pipes according to claim 9, characterized in that, It also includes a tensioning wheel, which is located between the first sprocket and the second sprocket and is used to tension the drive chain.

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