HDPE double-wall corrugated pipe port grinding device

By designing a combination of support frame, clamping part and grinding part, the problem of unstable position of HDPE double wall corrugated pipe port grinding device was solved, ensuring the stability of the grinding process and the flatness of the port surface.

CN223933260UActive Publication Date: 2026-02-24CHENGDU QIYU TECH CO LTD
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Patent Information

Application Number
CN202520480114.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-24
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

The existing HDPE double-wall corrugated pipe end grinding equipment lacks a stable fixing structure, which makes it difficult to keep the relative position between the equipment and the corrugated pipe constant during the grinding process, resulting in uneven end surfaces.

Method used

A device including a support frame, a clamping part, and a grinding part was designed. The moving frame drives the transmission rod and the clamping rod to rotate, and the clamping head firmly clamps the bellows. Combined with the motor-driven push rod and grinding head, the stability of the device and the position of the bellows during the grinding process is ensured.

Benefits of technology

This method achieves a constant position between the device and the bellows during the grinding process, improving the flatness of the port surface and the processing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an HDPE double-wall corrugated pipe port grinding device which comprises a supporting frame, a clamping part and a grinding part, a sliding rod is arranged in the supporting frame, the clamping part is arranged on the supporting frame and comprises a movable frame transversely arranged in the supporting frame in a sliding mode, a clamping rod is rotationally arranged on the side face of the movable frame, and the grinding part is arranged on the clamping rod. A transmission rod is rotationally arranged in the middle of the clamping rod, the top end of the transmission rod is rotationally connected with the side wall of the supporting frame, a clamping head is rotationally arranged at the front end of the clamping rod and abuts against the outer side wall of the corrugated pipe, the moving frame drives the transmission rod to rotate to push the clamping rod to rotate, and the grinding part is arranged in the supporting frame. According to the corrugated pipe grinding device, the clamping part is arranged, the four transmission rods can be driven to rotate and the clamping rods are pushed to rotate through the displacement of the movable frame, so that the corrugated pipe is firmly clamped by the four clamping heads, and the position between the device and the corrugated pipe can be kept constant when a grinding head conducts grinding operation.
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Description

Technical Field

[0001] This utility model relates to the field of HDPE double-wall corrugated pipe processing technology, specifically to an HDPE double-wall corrugated pipe end grinding device. Background Technology

[0002] HDPE double-wall corrugated pipe is a new type of lightweight pipe made from high-density polyethylene (HDPE). Its structural features include a smooth inner wall and a corrugated outer wall. This design not only improves the pipe's strength and toughness but also significantly reduces the material's weight, making handling and installation more convenient and faster.

[0003] After cutting, existing HDPE double-wall corrugated pipes often have burrs or irregular cuts at the ends. In such cases, HDPE double-wall corrugated pipe end grinding devices are needed to grind the burrs at the ends. However, existing HDPE double-wall corrugated pipe end grinding devices lack a stable fixing structure, making it difficult to maintain a constant relative position between the device and the corrugated pipe during the grinding process. As a result, although the HDPE double-wall corrugated pipe end grinding device can effectively remove burrs, the unavoidable shaking and uneven force during operation often cause unevenness on the end surface, affecting the final processing quality. Utility Model Content

[0004] The purpose of this invention is to provide an HDPE double-wall corrugated pipe end grinding device to solve the problem mentioned in the background art that the existing HDPE double-wall corrugated pipe end grinding devices lack a stable fixing structure, making it difficult to maintain a constant relative position between the device and the corrugated pipe during the grinding process. As a result, although the HDPE double-wall corrugated pipe end grinding device can effectively remove burrs, the unavoidable shaking and uneven force during operation often cause unevenness on the end surface, affecting the final processing quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for the ends of HDPE double-wall corrugated pipes, comprising a support frame, a clamping part, and a grinding part:

[0006] The support frame has a sliding rod inside. The clamping part is mounted on the support frame and includes a movable frame that slides laterally inside the support frame. A clamping rod is rotatably mounted on the side of the movable frame. A transmission rod is rotatably mounted in the middle of the clamping rod. The top of the transmission rod is rotatably connected to the side wall of the support frame. A clamping head is rotatably mounted at the front end of the clamping rod and abuts against the outer wall of the bellows. The movable frame drives the transmission rod to rotate and push the clamping rod to rotate. The grinding part is located inside the support frame and includes a push rod that slides laterally inside the support frame. A rotating shaft is rotatably mounted laterally inside the push rod. A grinding head is mounted at the end of the rotating shaft near the bellows, and a motor b is mounted at the end of the push rod away from the bellows. The output end of the motor b is connected to the rotating shaft.

[0007] By adopting the above technical solution, the displacement of the moving frame can simultaneously drive the four transmission rods to rotate and push the clamping rods to rotate together, so that the four clamping heads can firmly clamp the corrugated pipe, and the position between the device and the corrugated pipe can remain constant when the grinding head performs grinding operation on the port of HDPE double wall corrugated pipe.

[0008] Preferably, the support frame further includes four connecting sections a disposed on the side of the support frame, and each of the four connecting sections a is rotatably connected to a transmission rod.

[0009] By adopting the above technical solution, the transmission rod can be rotated around the connecting section a.

[0010] Preferably, the support frame further includes a slide rod disposed inside the support frame, and the movable frame has a slide groove b inside, through which the slide rod is slidably connected to the movable frame.

[0011] By adopting the above technical solution, the mobile frame can slide laterally along the slide bar inside the support frame.

[0012] Preferably, the support frame further includes a slide groove a inside the support frame, and the movable frame has a slide groove c inside. The push rod passes through the slide groove a and is laterally slidably connected to the support frame, and the push rod passes through the slide groove c and is laterally slidably connected to the movable frame.

[0013] By adopting the above technical solution, the push rod can be moved through the moving frame and the support frame.

[0014] Preferably, the clamping part further includes a lead screw that is laterally rotatably disposed inside the support frame. The movable frame has a threaded groove inside, and the lead screw passes laterally through the threaded groove and is threadedly connected to the movable frame. A motor a is fixedly disposed on the side of the support frame by bolts, and the output end of the motor a is connected to the lead screw.

[0015] By adopting the above technical solution, motor a can drive the lead screw to rotate, thereby causing the moving frame to shift.

[0016] Preferably, the clamping part further includes four connecting sections b disposed on the side of the movable frame, each of the four connecting sections b being rotatably connected to a clamping rod, and the middle part of each of the four clamping rods being rotatably connected to a transmission rod.

[0017] By adopting the above technical solution, the clamping rod can be rotated on the side of the moving frame.

[0018] Preferably, the top of the support frame is provided with a handrail, and the side of the push rod is provided with a handrail.

[0019] By adopting the above technical solution, it is convenient for operators to handle.

[0020] Compared with the prior art, the beneficial effects of this utility model are: by providing a clamping part, the displacement of the moving frame can simultaneously drive the four transmission rods to rotate and push the clamping rods to rotate, so that the four clamping heads can firmly clamp the bellows, so that the position between the device and the bellows can remain constant when the grinding head is performing grinding operations. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall clamping bellows structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall structure of this application;

[0023] Figure 3 This is a schematic diagram of the overall clamping cross-sectional structure of this application;

[0024] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this application;

[0025] Figure 5 This is a schematic diagram of the grinding cross-sectional structure of this application;

[0026] Figure 6 This is a schematic diagram of the connection structure between the support frame and the lead screw in this application;

[0027] Figure 7 This is a schematic diagram of the connection structure between the movable frame and the clamping rod in this application.

[0028] In the diagram: 1. Support frame; 101. Connecting section a; 102. Slide rod; 103. Slide groove a; 2. Clamping part; 201. Moving frame; 202. Connecting section b; 203. Slide groove b; 204. Slide groove c; 205. Threaded groove; 206. Clamping rod; 207. Transmission rod; 208. Clamping head; 209. Lead screw; 210. Motor a; 3. Grinding part; 301. Push rod; 302. Rotating shaft; 303. Grinding head; 304. Motor b. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a grinding device for the ends of HDPE double-wall corrugated pipes, comprising a support frame 1, a clamping part 2, and a grinding part 3.

[0032] A sliding rod 102 is fixedly welded inside the support frame 1. A clamping part 2 is mounted on the support frame 1. A movable frame 201 is laterally slidable inside the support frame 1. A clamping rod 206 is rotatably mounted on the side of the movable frame 201. A transmission rod 207 is rotatably mounted in the middle of the clamping rod 206. The top end of the transmission rod 207 is rotatably connected to the side wall of the support frame 1. A clamping head 208 is rotatably mounted at the front end of the clamping rod 206. The clamping head 208 abuts against the outer wall of the bellows. The movable frame 201 drives the transmission rod 207 to rotate, thereby pushing the clamping rod 206 to rotate. A grinding part 3 is located inside the support frame 1. The grinding part 3 includes a push rod 301 laterally slidable inside the support frame 1. A rotating shaft 302 is laterally rotatable inside the push rod 301. A grinding head 303 is provided at the end of the rotating shaft 302 near the corrugated pipe. The grinding head 303 can be made of silicon carbide, alumina, diamond coating, polyurethane, ceramic, etc. The material selection needs to be comprehensively considered based on factors such as grinding precision, cost, and wear resistance during production. A motor b304 is provided at the end of the push rod 301 away from the corrugated pipe. The output end of the motor b304 is connected to the rotating shaft 302. The displacement of the moving frame 201 can simultaneously drive the four transmission rods 207 to rotate and push the clamping rods 206 to rotate together, so that the four clamping heads 208 can firmly clamp the corrugated pipe. This ensures that the position between the device and the corrugated pipe can remain constant when the grinding head 303 is grinding the port of the HDPE double-wall corrugated pipe.

[0033] Example 2

[0034] Please see Figure 3 , Figure 4 and Figure 5 This embodiment provides a technical solution: a grinding device for the end of an HDPE double-wall corrugated pipe, comprising a clamping part 2 and a grinding part 3.

[0035] Connecting sections a101 are welded and fixedly installed on the side of the support frame 1. There are four connecting sections a101, and each of the four connecting sections a101 is rotatably connected to a transmission rod 207, allowing the transmission rod 207 to rotate around the connecting section a101. A sliding rod 102 is welded and fixedly installed inside the support frame 1. A sliding groove b203 is opened inside the movable frame 201. The sliding rod 102 passes through the sliding groove b203 and is slidably connected to the movable frame 201, allowing the movable frame 201 to slide laterally along the sliding rod 102 inside the support frame 1. A sliding groove a103 is opened inside the support frame 1, and a sliding groove c204 is opened inside the movable frame 201. A push rod 301 passes through the sliding groove a103 and is slidably connected to the support frame 1 laterally. The push rod 301 passes through the sliding groove c204 and is slidably connected to the movable frame 201 laterally, allowing the push rod 301 to move through the movable frame 201 and the support frame 1.

[0036] Example 3

[0037] Please see Figure 5 , Figure 6 and Figure 7 This embodiment provides a technical solution: a grinding device for the end of an HDPE double-wall corrugated pipe, comprising a clamping part 2 and a grinding part 3.

[0038] A lead screw 209 is laterally rotatably installed inside the support frame 1. A threaded groove 205 is opened inside the movable frame 201. The lead screw 209 passes laterally through the threaded groove 205 and is threadedly connected to the movable frame 201. A motor a210 is fixedly installed on the side of the support frame 1 by bolts. The output end of the motor a210 is connected to the lead screw 209, which allows the motor a210 to drive the lead screw 209 to rotate, thereby driving the movable frame 201 to move. The motor a210 is a servo motor, which is an auxiliary motor indirect speed change device. The servo motor can control speed and has very accurate positioning. It can convert voltage signals into torque and speed to drive the controlled object. Connecting sections b202 are fixedly welded to the side of the moving frame 201. There are four connecting sections b202. Each of the four connecting sections b202 is rotatably connected to a clamping rod 206. The middle of each of the four clamping rods 206 is rotatably connected to a transmission rod 207, which allows the clamping rods 206 to rotate on the side of the moving frame 201. A handrail is provided on the top of the support frame 1 and a handrail is provided on the side of the push rod 301 for easy access by the operator.

[0039] Working principle: First, the device is powered on. Then, the motor a210 controls the rotation of the lead screw 209, which in turn controls the displacement of the moving frame 201. The moving frame 201 slides laterally along the slide rod 102 inside the support frame 1, driving the four transmission rods 207 to rotate and pushing the clamping rods 206 to rotate together. This allows the four clamping heads 208 to firmly clamp the corrugated pipe. Then, by pushing the push rod 301 to slide, the rotating grinding head 303 can contact the port of the HDPE double-wall corrugated pipe and perform grinding operations. During the grinding process, the position between the device and the corrugated pipe can remain constant.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for the ends of HDPE double-wall corrugated pipes, characterized in that, include: A support frame, the interior of which is equipped with a sliding rod; The clamping part is mounted on the support frame. The clamping part includes a movable frame that is laterally slidably mounted inside the support frame. A clamping rod is rotatably mounted on the side of the movable frame. A transmission rod is rotatably mounted on the middle of the clamping rod. The top end of the transmission rod is rotatably connected to the side wall of the support frame. A clamping head is rotatably mounted on the front end of the clamping rod. The clamping head abuts against the outer wall of the bellows. The movable frame drives the transmission rod to rotate and pushes the clamping rod to rotate. The grinding section is located inside the support frame. The grinding section includes a push rod that is laterally slidably disposed inside the support frame. A rotating shaft is laterally rotatable inside the push rod. A grinding head is disposed at the end of the rotating shaft near the bellows. A motor b is disposed at the end of the push rod away from the bellows. The output end of the motor b is connected to the rotating shaft.

2. The HDPE double-wall corrugated pipe end grinding device according to claim 1, characterized in that: The support frame also includes four connecting sections a disposed on the side of the support frame, and each of the four connecting sections a is rotatably connected to a transmission rod.

3. The HDPE double-wall corrugated pipe end grinding device according to claim 1, characterized in that: The support frame also includes a slide rod disposed inside the support frame. The movable frame has a slide groove b inside, through which the slide rod slides and is slidably connected to the movable frame.

4. The HDPE double-wall corrugated pipe end grinding device according to claim 1, characterized in that: The support frame also includes a slide groove a inside the support frame, and a slide groove c inside the movable frame. The push rod passes through the slide groove a and is laterally slidably connected to the support frame, and the push rod passes through the slide groove c and is laterally slidably connected to the movable frame.

5. The HDPE double-wall corrugated pipe end grinding device according to claim 4, characterized in that: The clamping part also includes a lead screw that is laterally rotatably disposed inside the support frame. The movable frame has a threaded groove inside, and the lead screw passes laterally through the threaded groove and is threadedly connected to the movable frame. A motor a is fixedly disposed on the side of the support frame by bolts, and the output end of the motor a is connected to the lead screw.

6. The HDPE double-wall corrugated pipe end grinding device according to claim 1, characterized in that: The clamping part also includes four connecting sections b disposed on the side of the movable frame. Each of the four connecting sections b is rotatably connected to a clamping rod, and the middle of each of the four clamping rods is rotatably connected to a transmission rod.

7. The HDPE double-wall corrugated pipe end grinding device according to claim 1, characterized in that: The support frame is equipped with a handrail at the top, and the push rod is equipped with a handrail on its side.