Plastic pipe sizing device

By introducing a clamping mechanism and a heating device into the plastic pipe sizing device, the problem of operators manually connecting sizing pipes is solved, and automated and stable pipe connection is achieved.

CN223849926UActive Publication Date: 2026-01-30SHAANXI ZHONGDE KECHUANG TECH CO LTD
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Patent Information

Application Number
CN202520020618.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-01-30
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

In the current process of sizing plastic pipes, the operator needs to manually press the sizing pipe to connect with the traction pipe, which is labor-intensive and the connection is unstable.

Method used

The system employs a pressing mechanism and a heating device, utilizing a servo motor and an electric push rod to automatically press the sized pipe, causing it to adhere to the traction pipe, and uses a heating plate to improve connection stability.

Benefits of technology

It enables automatic connection between sizing pipes and traction pipes, reducing the workload of operators and improving the stability and efficiency of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic pipe sizing device, which comprises a base, a pipe sizing mill and an extruder, the top of the base is fixedly provided with a mounting plate, the mounting plate is provided with a hold-down mechanism, the hold-down mechanism comprises a servo motor and a limit frame which are fixedly arranged on the mounting plate, the limit frame is internally connected with two sliding blocks in a sliding manner, and the two sliding blocks are arranged on the base. And fixing rods are fixedly installed on the side walls of the two sliding blocks correspondingly, abutting plates are fixedly installed at the ends of the two fixing rods correspondingly, a double-thread screw is rotationally connected to the inner top of the limiting frame, and the double-thread screw penetrates through the two sliding blocks and is in threaded connection with the two sliding blocks. The pipe sizing device is reasonable in structural design, when the pipe sizing device is used for sizing a pipe, the pipe to be sized can be automatically pressed, so that the pipe to be sized is adhered to a traction pipe, the manual connection operation of operators is omitted, and the workload of the operators is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic pipe production, especially to plastic pipe sizing device. BACKGROUND

[0002] The plastic pipe sizing device is a key equipment in the production process of plastic pipes, which mainly ensures the constant diameter of the pipe during the extrusion process, thereby improving the quality and appearance of the pipe. The plastic pipe sizing device is usually composed of a sizing sleeve, a vacuum box, a cooling water tank and other parts. Among them, the sizing sleeve is used for preliminary shaping of the extruded pipe, and the vacuum box makes the pipe tightly adhere to the sizing sleeve by vacuumizing, further ensuring the stability of the diameter of the pipe. The cooling water tank is used for cooling the pipe to make it solidify quickly, thereby maintaining the shape after sizing.

[0003] In the prior art, when the plastic pipe extruded from the extruder is sized, a plastic pipe with a smaller diameter than the sized plastic pipe is generally used to pull it. When the extruded plastic pipe is connected with the pulling pipe, the operator wraps the pipe extruded from the extruder on the outer wall of the pulling pipe, and when the sized pipe is connected with the pulling pipe, the operator presses the sized pipe with the help of a tool to make it adhere to the pulling pipe. The workload of the operator is large, and therefore we designed a plastic pipe sizing device to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problems in the prior art and provides a plastic pipe sizing device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The plastic pipe sizing device comprises a base, a pipe sizing machine and an extruder, the top of the base is fixedly installed with a mounting plate, the mounting plate is provided with a pressing mechanism, the pressing mechanism comprises a servo motor and a limiting frame fixedly installed on the mounting plate, two sliding blocks are slidingly connected in the limiting frame, fixed rods are fixedly installed on the side walls of the two sliding blocks, end portions of the two fixed rods are fixedly installed with abutting plates, a double-head screw rod is rotatably connected to the inner top of the limiting frame, the double-head screw rod penetrates through the two sliding blocks and is threadedly connected therewith, the double-head screw rod penetrates through the bottom of the limiting frame and is rotatably connected therewith, and the bottom end of the double-head screw rod is fixedly connected with the output shaft end of the servo motor.

[0007] Preferably, a fixed plate is fixedly installed on the pipe sizing machine, an electric push rod is fixedly installed on the side wall of the fixed plate, a connecting plate is fixedly installed on the extension end of the electric push rod, a heating plate is fixedly installed on the bottom of the connecting plate, and an annular plate is fixedly installed on the inner wall of the heating plate.

[0008] Preferably, the two said stop plates are arranged in an arc shape.

[0009] Preferably, the annular plate is fixedly installed on the inner wall of the heating plate through a plurality of bolts.

[0010] Preferably, the pipe sizing machine and the extruder are both fixedly installed on the top of the base, and the discharge end of the extruder is opposite to the feeding port of the pipe sizing machine.

[0011] Preferably, the bottom of the base is fixedly installed with a rubber pad.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. By the setting of the pressing mechanism, when the pipe is sized, the sized pipe can be automatically pressed so as to adhere to the traction pipe, thereby saving the manual connection operation of the operator and reducing the workload of the operator.

[0014] 2. By the setting of the connecting plate, the annular plate, the heating plate, the fixed plate and the electric push rod, when the sized pipe is connected with the traction pipe, the sized pipe extruded by the extruder can be heated, so as to keep high stability and improve the effect of the subsequent connection with the traction pipe.

[0015] In summary, the utility model has the rational structure, when the pipe is sized, the sized pipe can be automatically pressed so as to adhere to the traction pipe, thereby saving the manual connection operation of the operator and reducing the workload of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure diagram of the plastic pipe sizing device is shown in the utility model;

[0017] Figure 2 The partial mechanism side view of the base and the mounting plate is shown in the utility model;

[0018] Figure 3 The structure enlarged view of A in the utility model is shown in the utility model. Figure 1

[0019] In the figure: 1, base; 2, pipe sizing machine; 3, extruder; 4, mounting plate; 5, servo motor; 6, limiting frame; 7, sliding block; 8, double-head screw rod; 9, fixed rod; 10, stop plate; 11, connecting plate; 12, annular plate; 13, heating plate; 14, fixed plate; 15, electric push rod. DETAILED DESCRIPTION

[0020] ​Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] With reference to Figures 1-3 The plastic pipe sizing device comprises a base 1, a pipe sizing machine 2 and an extruder 3, the bottom of the base 1 is fixedly provided with a rubber pad, the pipe sizing machine 2 and the extruder 3 are both fixedly installed on the top of the base 1, the discharge end of the extruder 3 is opposite to the feeding port of the pipe sizing machine 2, the top of the base 1 is fixedly provided with a mounting plate 4, the mounting plate 4 is provided with a pressing mechanism, the pressing mechanism comprises a servo motor 5 and a limiting frame 6 which are both fixedly installed on the mounting plate 4, two sliding blocks 7 are slidably connected in the limiting frame 6, the side walls of the two sliding blocks 7 are both fixedly provided with a fixed rod 9, the end portions of the two fixed rods 9 are both fixedly provided with a resisting plate 10, the two resisting plates 10 are arc-shaped, a double-head screw rod 8 is rotatably connected to the inner top of the limiting frame 6, the double-head screw rod 8 penetrates through the two sliding blocks 7 and is threadedly connected therewith, the double-head screw rod 8 penetrates through the bottom of the limiting frame 6 and is rotatably connected therewith, and the bottom end of the double-head screw rod 8 is fixedly connected to the output shaft end of the servo motor 5.

[0022] Through the setting of the pressing mechanism, when the pipe is sized, the sized pipe can be automatically pressed so as to adhere to the traction pipe, thereby saving the manual connection operation of the operator and reducing the workload of the operator.

[0023] The pipe sizing machine 2 is fixedly provided with a fixed plate 14, the side wall of the fixed plate 14 is fixedly provided with an electric push rod 15, the telescopic end of the electric push rod 15 is fixedly provided with a connecting plate 11, the bottom of the connecting plate 11 is fixedly provided with a heating plate 13, and the inner wall of the heating plate 13 is fixedly provided with an annular plate 12.

[0024] Through the setting of the connecting plate 11, the annular plate 12, the heating plate 13, the fixed plate 14 and the electric push rod 15, when the sized pipe is connected to the traction pipe, the sized pipe extruded by the extruder can be heated, so as to keep high stability and improve the effect of the subsequent connection with the traction pipe.

[0025] The utility model can be described as follows:

[0026] When the plastic pipe needs to be sized, first, the operator pulls the pipe through the pipe sizing machine 2, so that the pulling pipe is exposed from the right end of the pipe sizing machine 2, the extruder 3 is started to extrude the sizing pipe, so that the sizing pipe is wrapped around the right end of the pulling pipe, at this time the extrusion operation is stopped, the operator starts the electric push rod 15, which is elongated, the electric push rod 15 drives the connecting plate 11 to move to the right, the connecting plate 11 drives the annular plate 12 on the heating plate 13 to move to the right, so that the annular plate 12 is at the connection of the pulling pipe and the sizing pipe, the annular plate 12 is started, the annular plate 12 heats the end of the sizing pipe, after heating is completed, the operator controls the electric push rod 15 to retract to drive the annular plate 12 on the heating plate 13 to reset, then the operator starts the servo motor 5, the servo motor 5 drives the double-headed screw 8 to rotate, when the double-headed screw 8 rotates, it drives the two sliding blocks 7 to slide towards each other, the two double-headed screws 8 drive the abutting plates 10 to slide through the fixed rod 9, so that the two abutting plates 10 extrude the outer wall of the sizing pipe, so that the sizing pipe adheres to the outer wall of the pulling pipe, after the connection is completed, the operator controls the servo motor 5 to rotate in the opposite direction, so that the two abutting plates 10 slide to reset, at this time the operator pulls the pulling pipe through the pulling device to drive the sizing pipe into the pipe sizing machine 2, the pipe sizing machine 2 sizes it, the sized pipe is cooled by water spraying and discharged.

[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A device for sizing plastic pipes, comprising a base (1), a pipe sizing machine (2) and an extruder (3), characterized in that, The top of the base (1) is fixedly provided with a mounting plate (4), and the mounting plate (4) is provided with a pressing mechanism; The pressing mechanism comprises a servo motor (5) and a limiting frame (6) fixedly installed on the mounting plate (4), two sliding blocks (7) are slidably connected in the limiting frame (6), the side walls of the two sliding blocks (7) are fixedly provided with fixed rods (9), the end portions of the two fixed rods (9) are fixedly provided with abutting plates (10), the inner top of the limiting frame (6) is rotatably connected with a double-head screw rod (8), the double-head screw rod (8) penetrates through the two sliding blocks (7) and is threadedly connected with the two sliding blocks (7), the double-head screw rod (8) penetrates through the bottom of the limiting frame (6) and is rotatably connected with the limiting frame (6), and the bottom end of the double-head screw rod (8) is fixedly connected with the output shaft end of the servo motor (5).

2. A plastic pipe sizing device according to claim 1, wherein The pipe sizing machine (2) is fixedly provided with a fixed plate (14), the side wall of the fixed plate (14) is fixedly provided with an electric push rod (15), the telescopic end of the electric push rod (15) is fixedly provided with a connecting plate (11), the bottom of the connecting plate (11) is fixedly provided with a heating plate (13), and the inner wall of the heating plate (13) is fixedly provided with an annular plate (12).

3. The plastic pipe sizing device of claim 1, wherein, The two abutting plates (10) are arranged in an arc shape.

4. The plastic pipe sizing device of claim 2, wherein, The annular plate (12) is fixedly installed on the inner wall of the heating plate (13) through a plurality of bolts.

5. The plastic pipe sizing device of claim 1, wherein, The pipe sizing machine (2) and the extruder (3) are both fixedly installed on the top of the base (1), and the discharge end of the extruder (3) faces the feeding port of the pipe sizing machine (2).

6. The plastic pipe sizing device of claim 1, wherein, The bottom of the base (1) is fixedly provided with a rubber pad.