Processing system to improve the efficiency of HDPE double-wall corrugated pipe processing

Abstract

The invention discloses a processing system for improving the processing efficiency of HDPE double-wall corrugated pipes, comprising: a plurality of molding parts, used for pressing corrugated grooves on the side walls of the pipe body to form the pipe body into a corrugated pipe; a conveyor chain, driving the molding parts to reciprocate between an extruder and a cold air blower; the molding parts are evenly arranged on the conveyor chain, and temperature control materials are arranged on the molding parts so that the temperature of the molding parts arranged on the conveyor chain decreases step by step from one end of the conveyor chain close to the extruder to the other end of the conveyor chain close to the cold air blower; the invention can make the temperature on the molding parts decrease step by step to reduce the influence of temperature on the device and improve the cooling effect on the corrugated pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of corrugated pipe processing, and in particular relates to a processing system for improving the processing efficiency of HDPE double-wall corrugated pipes. Background Art

[0002] HDPE double-wall corrugated pipe, referred to as PE corrugated pipe, was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete product series. Double-wall corrugated pipe is a new type of lightweight pipe made of high-density polyethylene. It has the characteristics of light weight, high pressure resistance, good toughness, fast construction, and long life. Its excellent pipe wall structure design greatly reduces the cost compared with other structures of pipes. And because of its convenient and reliable connection, it has been widely used at home and abroad. It has replaced a large number of concrete pipes and cast iron pipes.

[0003] When producing corrugated pipes, the pipe body is usually first formed by an extruder, and then the pipe body is processed into corrugated grooves on the side wall of the pipe body through a horizontal forming device. At the same time, a cooling fan is set at the other end of the horizontal forming device to cool the formed corrugated pipe so that the corrugated pipe can be quickly formed. This causes the temperature at one end of the horizontal forming device to be very high, while the temperature at the other end is very low. The corrugated pipe forming device experiences sudden cooling and heating when conveying the corrugated pipe, which affects the service life of the equipment. At the same time, due to the sudden change in temperature, the cooling effect of the corrugated pipe is not ideal. Summary of the invention

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a processing system for improving the processing efficiency of HDPE double-wall corrugated pipes.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: a processing system for improving the processing efficiency of HDPE double-wall corrugated pipe, comprising:

[0007] A plurality of forming parts, used for pressing the corrugated grooves on the side wall of the tube body to form the tube body into a corrugated tube;

[0008] The conveyor chain drives the molded parts to reciprocate between the extruder and the cooling fan;

[0009] The molded parts are evenly arranged on the conveyor chain, and temperature control materials are arranged on the molded parts so that the temperature of the molded parts arranged on the conveyor chain decreases step by step from one end of the conveyor chain close to the extruder to the end of the conveyor chain close to the cooling fan.

[0010] Furthermore, the temperature control material is a phase change material.

[0011] Furthermore, the molded part is provided with a through groove for the tube body to pass through, and the inner wall of the through groove is provided with a plurality of convex parts for squeezing the side wall of the tube body to deform the side wall of the tube body.

[0012] Furthermore, a first cavity for accommodating the temperature control material is provided on the molded part.

[0013] Furthermore, the first cavity extends onto the convex portion.

[0014] Furthermore, the processing system for improving the processing efficiency of HDPE double-wall corrugated pipe also includes:

[0015] End blocks, provided at both ends of the formed part;

[0016] The end block is provided with a sealing plate for closing the first cavity.

[0017] Furthermore, the processing system for improving the processing efficiency of HDPE double-wall corrugated pipe also includes:

[0018] The heating device heats the molded parts moving toward the extruder.

[0019] Furthermore, the heating device comprises:

[0020] Water storage tanks are located on both sides of the conveyor chain;

[0021] A heating block is arranged in the water storage tank;

[0022] The side wall of the water storage tank is in contact with the side wall of the molded part.

[0023] Furthermore, the heating device comprises:

[0024] A mounting plate, arranged on one side of the conveyor chain;

[0025] A microwave module is arranged on the mounting plate;

[0026] Sealed doors are arranged at both ends of the mounting plate and cooperate with the mounting plate to form a heating space;

[0027] The molded parts pass through the heating space when the conveyor chain drives the molded parts to move.

[0028] Furthermore, a second cavity is provided on the molded part, and a heat-conducting medium is provided in the second cavity.

[0029] The present invention has the following advantages: providing a processing system which can gradually reduce the temperature on the molded part to reduce the influence of the temperature on the device, improve the cooling effect on the corrugated pipe and improve the processing efficiency of the HDPE double-wall corrugated pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0031] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0032] In the attached picture:

[0033] Figure 1 A schematic diagram of the structure of a processing system for improving the processing efficiency of a HDPE double-wall corrugated pipe according to an embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the molding parts of the processing system for improving the processing efficiency of the HDPE double-wall corrugated pipe;

[0035] Figure 3 A cross-sectional view of a molded part of the processing system for improving the processing efficiency of HDPE double-wall corrugated pipes Figure 1 ;

[0036] Figure 4 A cross-sectional view of a molded part of the processing system for improving the processing efficiency of HDPE double-wall corrugated pipes Figure 2 ;

[0037] Figure 5 A schematic diagram of the structure of a processing system for improving the processing efficiency of HDPE double-wall corrugated pipes according to another embodiment of the present invention;

[0038] Figure 6 A cross-sectional view of the processing system for improving the processing efficiency of the HDPE double-wall corrugated pipe;

[0039] Figure 7 It is a schematic diagram of the structure of the molding parts of the processing system for improving the processing efficiency of the HDPE double-wall corrugated pipe;

[0040] Figure 8 A cross-sectional view of a molded part of the processing system for improving the processing efficiency of the HDPE double-wall corrugated pipe;

[0041] Fig. 9 It is a structural schematic diagram of a processing system for improving the processing efficiency of HDPE double-wall corrugated pipes according to another embodiment of the present invention;

[0042] Fig.10 It is a cross-sectional view of the processing system for improving the processing efficiency of the HDPE double-wall corrugated pipe.

[0043] 100. Processing system for improving processing efficiency of HDPE double-wall corrugated pipe; 101. Forming part; 101a. First cavity; 1011. Protrusion; 1012. Connecting part; 1013. Groove; 1014. Second claw; 102. Conveying chain; 103. Sprocket; 104. Transmission shaft; 105. End block; 1051. Sealing plate;

[0044] 200. Processing system for improving processing efficiency of HDPE double-wall corrugated pipe; 201. Forming part; 202. Water storage tank; 203. End block; 203a. Second cavity; 2031. Sealing plug;

[0045] 300. Processing system for improving processing efficiency of HDPE double-wall corrugated pipe; 301. Molded part; 302. Mounting plate; 3021. Sealing door. DETAILED DESCRIPTION

[0046] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0047] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0048] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0049] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0050] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0051] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0052] like Figure 1The processing system 100 for improving the processing efficiency of HDPE double-wall corrugated pipes includes a conveyor chain 102 , two sprocket sets and a plurality of molding parts 101 .

[0053] The sprocket group includes multiple sprockets 103 and a transmission shaft 104. The transmission shaft 104 is inserted into the multiple sprockets 103 to form a sprocket group. When connected with the transmission shaft 104, the entire sprocket group rotates synchronously. The conveying chain 102 is sleeved on the two sprocket groups, and the molded parts 101 are evenly arranged on the conveying chain 102. The molded parts 101 are used to press corrugated grooves on the side walls of the tube body to form the tube body into a corrugated tube. The conveying chain 102 drives the molded parts 101 to reciprocate between the extruder and the cold air blower. Phase change material is arranged on the molded parts 101 so that the temperature of the molded parts 101 arranged on the conveying chain 102 decreases step by step from one end of the conveying chain 102 close to the extruder to the end of the conveying chain 102 close to the cold air blower.

[0054] Specifically, the molded part 101 is provided with a through groove for the tube body to pass through, and the inner wall of the through groove is provided with a plurality of convex portions 1011 for squeezing the side wall of the tube body to deform the side wall of the tube body. The through groove is an arched structure, and the convex portion 1011 structure corresponds to the through groove structure. The conveying chain 102 is arranged in two groups, and the two groups of conveying chains 102 are arranged up and down. The molded parts 101 on the two groups of conveying chains 102 are fitted together as the conveying chains 102 rotate. After the two molded parts 101 are fitted together, the arched through grooves on them correspond to form a circular through groove, so that the convex portion 101 is in contact with the entire side wall of the tube body, thereby completing the processing of the corrugated tube.

[0055] Specifically, when the molded parts 101 rotate with the conveyor chain 102, the molded parts 101 on the two groups of conveyor chains 102 approach each other until they fit together, forming a circular through groove for the tube body to pass through; the conveyor chain 102 is arranged between the extruder and the cold air blower, and the tube body extruded from the extruder moves to the conveyor chain 102, and the tube body is between the two molded parts 101. When the conveyor chain 102 drives the molded parts 101 to rotate, the molded parts 101 drive the tube body to move together, providing power for the movement of the tube body, so that the tube body automatically moves toward the cold air blower; the cold air blower blows air to the tube body and the molded parts 101. The temperature of the molded part 101 and the tube body is lowered to enable the tube body to be molded quickly; under the setting of the phase change material, the temperature of the entire conveyor chain 102 is controlled to make the temperature of the molded part 101 arranged on the conveyor chain 102 gradually decrease from the end of the conveyor chain 102 close to the extruder to the end of the conveyor chain 102 close to the cold air blower. Preferably, the temperature difference between the adjacent conveyor chains 102 that are bonded on the two conveyor chains 102 is 2°C, so as to avoid sudden changes in the temperature of the molded part 101, protect the molded part 101, and at the same time reduce the impact of temperature changes on the corrugated tube, thereby improving the molding effect of the corrugated tube.

[0056] like Figure 3-4As shown, more specifically, a first cavity 101a is provided on the molded part 101, and the phase change material is filled in the first cavity 101a. The first cavity 101a is an open cavity, which reduces the difficulty of injection molding of the molded part 101; end blocks 105 are provided at both ends of the molded part 101, and the end blocks 105 are fixed to the molded part 101 by screws. The end block 105 closes one end of the first cavity 101a, and a sealing plate 1051 is provided on the end block 105. The sealing plate 1051 is penetrated into the first cavity 101a, and the sealing plate 1051 closes the top of the first cavity 101a. With the cooperation of the end block 105 and the sealing plate 1051, the first cavity 101a is closed to prevent the phase change material from leaking out of the first cavity 101a, so that the temperature of the molded part 101 at different positions can be controlled by using the phase change material.

[0057] Preferably, the first cavity 101a extends onto the convex portion 1011, thereby increasing the contact area between the phase change material and the tube body, transferring the temperature on the tube body to the workpiece, and improving the temperature control effect of the phase change material on the tube body.

[0058] A groove 1013 is provided on the side wall of the molded part 101, and the inner wall of the groove 1013 is an arc-shaped structure. The groove 1013 provides a reserved space for the thermal expansion and contraction of the molded part 101, reduces the interaction force between adjacent molded parts 101, and protects the molded part 101; when the molded part 101 on the conveyor chain 102 rotates to the other side, the groove 1013 allows air to enter between adjacent molded parts 101, increases the heat dissipation area of ​​the molded part 101, and restores the molded part 101 to room temperature, reducing the impact of temperature on the molded part 101.

[0059] like Figure 2 As shown, a connecting portion 1012 is provided on the top of the molded part 101 , a connecting plate is provided on the conveying chain 102 , a first clamping block is provided on the connecting plate, and a second clamping block is provided on the connecting portion 1012 .

[0060] When installing the molded part 101 , the connecting portion 1012 is pushed onto the connecting plate from one side of the conveying chain 102 , and the molded part 101 is fixed on the conveying chain 102 by the cooperation of the first clamping block and the second clamping block, thereby reducing the difficulty of installing the molded part 101 .

[0061] like Figure 5-8As shown, as a further preferred solution in the processing system 200 for improving the processing efficiency of HDPE double-wall corrugated pipes, heating devices are also arranged on both sides of the conveyor chain, and the heating devices include a water tank 202 and a heating block; a second cavity 203a is provided on the molded part 201, and preferably, the second cavity 203a is arranged on the end block 203, and a heat-conducting medium is filled in the second cavity 203a, and the heat-conducting medium is water. The side wall of the end block 203 is in contact with the side wall of the molded part 201, so that the heat on the end block 203 and the molded part 201 is fully exchanged, and when the molded part 201 passes through one side of the water tank 202, the water tank 202 is in contact with the side wall of the molded part 201, and the water tank 202 is arranged at the position where the two groups of conveyor chains are separated, and the water tank 202 is close to the position of the extruder, and the water tank 202 is a long strip structure, so that the molded part 201 has sufficient time to contact with the water tank 202.

[0062] An opening is provided on the side wall of the second cavity 203a, a sealing block for sealing the opening is provided on the end block 203, a water inlet is provided on the sealing block, and a sealing plug 2031 is provided on the water inlet. The water inlet can be used to conveniently inject clean water into the second cavity 203a.

[0063] When the tube body moves with the conveyor chain, the heating block heats the water in the water tank 202. When the molded part 201 moves to one side of the water tank 202, the end block 203 contacts the side wall of the water tank 202. The water tank 202 heats the end block 203, and the heat is transferred to the water in the second cavity 203a. After the water in the second cavity 203a is heated, the heat is transferred to the molded part 201, so that the entire molded part 201 is heated more evenly, thereby preheating the molded part 201.

[0064] The molded part 201 is preheated by a heating device to prevent the molded part 201 from suddenly rising in temperature after contacting the tube extruded from the extruder, thereby providing a heating space for the molded part 201. At the same time, the highest temperature point of the conveyor chain is moved toward the extruder, increasing the cooling space on the entire conveyor chain, allowing the tube to have a longer travel distance for cooling, thereby improving the cooling effect on the tube. The molded part 201 is heated by water flow heating to make the entire molded part 201 heated more evenly, thereby reducing the influence of heat on the molded part 201.

[0065] like Figure 9-10As shown, as another preferred solution for improving the processing efficiency of HDPE double-wall corrugated pipes, a processing system 300, a heating device includes a mounting plate 302, a microwave module and a sealing door 3021; ​​the mounting plate 302 is arranged on one side of the conveyor chain; the microwave module is arranged on the mounting plate 302; the sealing door 3021 is arranged at both ends of the mounting plate 302 and cooperates with the mounting plate 302 to form a heating space; the microwave module is the same as the microwave structure in the microwave oven in the prior art, and is not described again here; a plurality of bristles are arranged on the side wall of the sealing door 3021, and the sealing door 3021 contacts the convex portion through the bristles, and the bristles are used to increase the cooperation effect of the sealing door 3021 and the convex portion, thereby ensuring the sealing of the heating space and enabling the microwave to better heat the molded part 301.

[0066] The thickness of the sealing door 3021 is greater than the distance between two adjacent protrusions, ensuring that the heating space of the microwave module is always in a sealed state when heating the molded part 301, thereby preventing microwave leakage and improving the heating effect of the microwave on the molded part 301.

[0067] The mounting plate 302 is arranged near the extruder to preheat the molded part 301. The two groups of conveyor chains correspond to a mounting plate 302 respectively. The top mounting plate 302 is arranged above the top conveyor chain, and the bottom mounting plate 302 is arranged below the bottom conveyor chain.

[0068] When the conveyor chain drives the molded part 301 to move to one side of the mounting plate 302, the sealing door 3021 and the convex portion on the molded part 301 form a heating space, and the microwave module performs microwave heating on the heating space. The phase change material is directly heated under the action of microwaves, and the molded part 301 is preheated.

[0069] The molded part 301 is heated faster and more evenly by microwave heating, the overall length of the heating device is shortened, the heating of the molded part 301 is more convenient, the molded part 301 is preheated, the cooling stroke of the molded part 301 is increased, and a more even cooling effect is provided for the tube body.

[0070] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A processing system for improving the processing efficiency of HDPE double-wall corrugated pipes, comprising: A plurality of forming parts, used for pressing corrugated grooves on the side wall of the tube body so as to form the tube body into a corrugated tube; A conveyor chain drives the molded parts to reciprocate between the extruder and the cooling fan; Features: The molded parts are evenly arranged on the conveying chain, and temperature control materials are arranged on the molded parts so that the temperature of the molded parts arranged on the conveying chain decreases step by step from one end of the conveying chain close to the extruder to the end of the conveying chain close to the cooling fan; the temperature control material is a phase change material; a groove is arranged on the side wall of the molded part, and the inner wall of the groove is an arc-shaped structure; The processing system for improving the processing efficiency of HDPE double-wall corrugated pipes also includes a heating device, which heats the molded part moving toward the extruder; the heating device is arranged close to the extruder so that the molded part has sufficient time to contact the heating device; the molded part is preheated by the heating device to avoid a sudden temperature rise after the molded part contacts the pipe body extruded from the extruder.

2. The processing system for improving the processing efficiency of HDPE double-wall corrugated pipe according to claim 1, characterized in that: The forming part is provided with a through slot for the tube body to pass through, and the inner wall of the through slot is provided with a plurality of convex parts for squeezing the side wall of the tube body to deform the side wall of the tube body.

3. The processing system for improving the processing efficiency of HDPE double-wall corrugated pipe according to claim 2 is characterized in that: The molded part is provided with a first cavity for accommodating the temperature control material.

4. The processing system for improving the processing efficiency of HDPE double-wall corrugated pipe according to claim 3 is characterized in that: The first cavity extends onto the protrusion.

5. The processing system for improving the processing efficiency of HDPE double-wall corrugated pipe according to claim 3 is characterized in that: Also includes: End blocks, arranged at both ends of the molded part; The end block is provided with a sealing plate for closing the first cavity.

6. The processing system for improving the processing efficiency of HDPE double-wall corrugated pipe according to claim 1, characterized in that: The heating device comprises: Water storage tanks are arranged on both sides of the conveyor chain; A heating block is arranged in the water storage tank; The side wall of the water storage tank is in contact with the side wall of the molded part.

7. The processing system for improving the processing efficiency of HDPE double-wall corrugated pipe according to claim 1, characterized in that: The heating device comprises: A mounting plate, arranged on one side of the conveyor chain; A microwave module is arranged on the mounting plate; Sealed doors are arranged at both ends of the mounting plate and cooperate with the mounting plate to form a heating space; When the conveying chain drives the molded parts to move, the molded parts pass through the heating space.

8. The processing system for improving the processing efficiency of HDPE double-wall corrugated pipe according to claim 6, characterized in that: The molded part is provided with a second cavity, and a heat-conducting medium is provided in the second cavity.

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