A tool suitable for cutting PVC pipe into strip samples and for bend testing

Abstract

The application discloses a tool suitable for cutting PVC pipes into strip samples and bending test, which comprises a fixing plate, a pipe clamping sliding groove arranged at the bottom of the fixing plate, a pair of two parallel and spaced-apart blades and a driving mechanism arranged on the fixing plate, the lower end of the blade penetrating through the bottom of the fixing plate and extending into the pipe clamping sliding groove, a sample strip ejection port further arranged on the fixing plate, and an arc guide rail piece arranged in the sample strip ejection port, the lower end of the arc guide rail piece penetrating through the bottom of the fixing plate and extending into the pipe clamping sliding groove, and the upper end extending out of the top of the fixing plate; the space between the arc guide rail piece and the two blades is oppositely arranged, and the sample strip cut by the two blades can slide along the arc guide rail piece after abutting against the lower end of the arc guide rail piece and then be ejected from the sample strip ejection port. The device is applied to on-site cutting of PVC pipes and simple test on the bending performance of the PVC pipes, and product detection can be quickly and conveniently completed.

Description

Technical Field

[0001] This application relates to a tool suitable for cutting PVC pipes into strip samples and performing bending tests. Background Technology

[0002] PVC pipe is a commonly used synthetic material. PVC stands for Polyvinyl Chloride Pipe, and it is a widely used plastic piping material. Due to its excellent chemical stability, corrosion resistance, lightweight, ease of processing, and cost-effectiveness, PVC is widely used in various fields such as construction, industry, agriculture, and municipal engineering.

[0003] Currently, the market standard for PVC pipe acceptance involves a simple inspection process, which includes cutting the pipes into strips and performing a simple bending test to observe whether they will break. However, the current technology for cutting PVC pipes into strips is relatively complex, inefficient, and does not allow for effective product testing.

[0004] This patent mainly solves the problem of obtaining pipe material samples on site and provides an integrated tooling fixture for bending testing, aiming to complete product testing quickly and conveniently. Summary of the Invention

[0005] In view of the above-mentioned technical problems existing in the prior art, the purpose of this application is to provide a tool suitable for cutting PVC pipes into strip samples and performing bending tests.

[0006] The technical solution adopted in this application is as follows: A tool for cutting PVC pipes into strip samples and performing bending tests includes a fixed plate, a pipe clamping groove at the bottom of the fixed plate, a pair of parallel and spaced blades on the fixed plate, and a drive mechanism for rotating the blades to cut. The lower end of the blades extends through the bottom of the fixed plate and into the pipe clamping groove. The fixed plate also has a strip passage outlet, in which an arc-shaped guide plate is provided for convenient transport of the PVC pipe after cutting. The lower end of the arc-shaped guide plate extends through the bottom of the fixed plate and into the pipe clamping groove, while the upper end extends beyond the top of the fixed plate. The space between the arc-shaped guide plate and the two blades is relatively arranged so that the strip cut by the two blades can slide along the arc-shaped guide plate and exit through the strip passage outlet after contacting the lower end of the arc-shaped guide plate.

[0007] Furthermore, the center position between the two blades is on the same straight line as the arc-shaped guide rail.

[0008] Furthermore, the bottom of the fixing plate is provided with a fixing arc block for fixing and positioning the lower end of the arc guide plate. The fixing arc block is fixedly set on the side of the lower end of the arc guide plate away from the blade to prevent the lower end of the arc guide plate from deforming or shaking after being touched by the cut strip.

[0009] Furthermore, a robotic arm is provided on the top of the fixed plate, and the robotic arm is fixedly connected to the upper end of the arc-shaped guide rail plate. The robotic arm is capable of pressing the upper end of the arc-shaped guide rail plate.

[0010] Furthermore, the fixing plate is provided with a blade slot for the blade to pass through, and the lower end of the blade passes through the blade slot from the bottom of the fixing plate and extends into the tube clamp groove.

[0011] Furthermore, a protective cover is provided on the outer side of each of the two blades, and the two protective covers are fixedly mounted on the top surface of the fixing plate.

[0012] Furthermore, the driving mechanism includes a motor and a rotating shaft. One of the motors is housed inside a protective cover. The rotating shaft is fixedly mounted at the center of both blades, and one end of the rotating shaft is fixedly connected to the output shaft of the motor. Thus, the two blades rotate and cut under the drive of the same motor.

[0013] Furthermore, the drive mechanism includes two motors and two rotating shafts. The two motors are respectively housed within the two protective covers. The centers of the two blades are respectively fixedly connected to a rotating shaft and respectively fixedly connected to the output shaft of the motor in the corresponding protective cover. Thus, the two blades rotate and cut under the driving action of their adjacent motors.

[0014] Furthermore, the motor is fixedly mounted on the inner side of the protective cover, or fixedly mounted on the top surface of the fixing plate.

[0015] Furthermore, a pair of handles are also provided on both sides of the fixing plate.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: This application is designed for processing according to the pipe size. The pipe is placed in the pipe clamp groove at the bottom of the fixed plate. A cutting blade is set in the middle of the fixed plate and a protective cover is added for protection. The cut PVC strip sample slides along the arc guide plate. The upper end of the arc guide plate is connected to a robotic arm to bend and perform bending tests on the test strip. The device of this application is applied to the on-site cutting of PVC pipes and to perform simple tests on their bending performance, which can quickly and conveniently complete product testing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a tool applicable to cutting PVC pipes into strip samples and performing bending tests, as described in this application. Figure 2 This is a schematic diagram of the tool used in this application for cutting PVC pipes; In the diagram: 1-fixed plate, 101-pipe clamp groove, 2-blade, 3-arc guide rail plate, 4-robotic arm, 5-handle, 6-protective cover, 7-PVC pipe. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0019] Example: Control Figures 1-2 A tool suitable for cutting PVC pipes into strip samples and conducting bending tests includes a fixing plate 1. A pipe clamping groove 101 is provided at the bottom of the fixing plate 1. A pair of parallel, spaced-apart blades 2 are mounted on the fixing plate 1, along with a drive mechanism for rotating the blades 2 to cut. Blade slots are provided on the fixing plate 1 for the blades 2 to pass through. The lower end of the blade 2 passes through the blade slots from the bottom of the fixing plate 1 and extends into the pipe clamping groove 101. A protective cover 6 is provided on the outer side of each of the two blades 2, and the two protective covers 6 are fixedly mounted on the top surface of the fixing plate 1.

[0020] The drive mechanism of this application can be one of the following two types: 1) The drive mechanism includes a motor and a rotating shaft. One of the motors is located inside a protective cover 6. The rotating shaft is fixedly mounted at the center of the two blades 2, and one end of the rotating shaft is fixedly connected to the output shaft of the motor. Thus, the two blades 2 rotate and cut under the drive of the same motor. The motor can be fixedly mounted on the inner side of the protective cover 6 or on the top surface of the fixing plate 1.

[0021] 2) The drive mechanism includes two motors and two rotating shafts. The two motors are respectively housed within the two protective covers 6. A rotating shaft is fixedly connected to the center of each of the two blades 2, and the shafts are respectively fixedly connected to the output shafts of the motors within the corresponding protective covers 6. (Comparison) Figure 1 In this design, the center of the left blade 2 is fixedly connected to the output shaft of the motor inside the left protective cover 6 via a rotating shaft, and the center of the right blade 2 is fixedly connected to the output shaft of the motor inside the right protective cover 6 via another rotating shaft. Thus, the two blades 2 rotate and cut under the drive of their respective adjacent motors. The motors can be fixedly mounted on the inner side of the protective cover 6 or on the top surface of the fixing plate 1. The two blades 2 can rotate synchronously at the same speed, or their speeds can differ slightly, with little impact on the cutting of PVC pipes.

[0022] The fixed plate 1 is also provided with a strip through-hole, and an arc-shaped guide rail 3 is provided in the strip through-hole for convenient conveying after PVC pipe cutting. The lower end of the arc-shaped guide rail 3 extends out from the bottom of the fixed plate 1 and into the pipe clamp groove 101, while the upper end extends out to the top of the fixed plate 1. The arc-shaped guide rail 3 and the two blades 2 are arranged opposite each other. Figure 1 In the process, the center position between the two blades 2 is on the same straight line as the arc guide plate 3. The strip cut by the two blades 2 can slide along the arc guide plate 3 after contacting the lower end of the arc guide plate 3 and pass through the strip through the outlet.

[0023] In order to keep the lower end of the arc guide rail 3 stable after being pressed against by the PVC pipe cutting strip, the bottom of the fixing plate 1 is provided with a fixing arc block for fixing and positioning the lower end of the arc guide rail 3. The fixing arc block is fixedly set on the side of the lower end of the arc guide rail 3 away from the blade 2. Under the blocking effect of the fixing arc block, the lower end of the arc guide rail 3 is prevented from deforming and shaking after being pressed against by the cutting strip.

[0024] Comparison Figure 1 A robotic arm 4 is mounted on the top of the fixed plate 1. The robotic arm 4 is fixedly connected to the upper end of the arc-shaped guide rail 3, and the robotic arm 4 can press the upper end of the arc-shaped guide rail 3. A pair of handles 5 are also provided on both sides of the fixed plate 1.

[0025] The tool in this application is mainly divided into three parts: clamping area, cutting area, and testing area. The pipe clamping groove 101 at the bottom of the fixing plate 1 constitutes the clamping area, the area where the two blades 2 are located constitutes the cutting area, and the connection between the robotic arm 4 and the upper end of the arc guide plate 3 constitutes the bending test area for the PVC pipe cutting sample.

[0026] The operating method of the tool in this application is as follows: 1) Fix one end of the PVC pipe 7 and insert the other end of the PVC pipe 7 into the pipe clamp groove 101 at the bottom of the fixing plate 1. Hold the handle 5 with both hands and push it toward the PVC pipe 7 so that the PVC pipe 7 moves toward the area where the two blades 2 are located.

[0027] 2) Start the drive mechanism so that the two blades 2 rotate and cut the PVC pipe 7, and push the handle 5 forward in the horizontal direction.

[0028] 3) After the cut strip touches the lower end of the arc guide plate 3, it slides along the arc guide plate 3 and passes through the strip through-hole of the fixed plate 1. Then it contacts the upper end of the arc guide plate 3 and stops cutting after reaching the test area.

[0029] 4) Use a robotic arm to press the upper end of the arc guide plate 3, causing the cut strip to bend. Perform a bending test and observe whether the PVC strip breaks.

[0030] The contents described in this specification are merely an enumeration of the implementation forms of the inventive concept, and the scope of protection of this invention should not be regarded as limited to the specific forms described in the embodiments.

Claims

1. A tool suitable for cutting PVC pipes into strip samples and performing bending tests, characterized in that... The device includes a fixed plate (1), a pipe clamp groove (101) at the bottom of the fixed plate (1), a pair of parallel blades (2) and a drive mechanism for driving the blades (2) to rotate and cut. The lower end of the blades (2) passes through the bottom of the fixed plate (1) and extends into the pipe clamp groove (101). The fixed plate (1) is also provided with a strip through-hole, and an arc guide plate (3) for convenient transport after PVC pipe cutting is provided in the strip through-hole. The lower end of the arc guide plate (3) passes through the bottom of the fixed plate (1) and extends into the pipe clamp groove (101), and the upper end extends to the top of the fixed plate (1). The space between the arc guide plate (3) and the two blades (2) is arranged opposite to each other. The strip cut by the two blades (2) can slide along the arc guide plate (3) and pass through the strip through-hole after it touches the lower end of the arc guide plate (3).

2. The tool as described in claim 1, suitable for cutting PVC pipes into strip samples and performing bending tests, is characterized in that... The center position between the two blades (2) is on the same straight line as the arc guide plate (3).

3. The tool as described in claim 1, suitable for cutting PVC pipes into strip samples and performing bending tests, is characterized in that... The bottom of the fixing plate (1) is provided with a fixing arc block for fixing and positioning the lower end of the arc guide plate (3). The fixing arc block is fixedly set on the side of the lower end of the arc guide plate (3) away from the blade (2) to prevent the lower end of the arc guide plate (3) from deforming or shaking after being touched by the cut strip.

4. The tool as described in claim 1, suitable for cutting PVC pipes into strip samples and performing bending tests, is characterized in that... A mechanical arm (4) is provided on the top of the fixed plate (1). The mechanical arm (4) is fixedly connected to the upper end of the arc guide plate (3). The mechanical arm (4) can press the upper end of the arc guide plate (3).

5. The tool as described in claim 1, suitable for cutting PVC pipes into strip samples and performing bending tests, characterized in that... The fixing plate (1) is provided with a blade slot for the blade (2) to pass through. The lower end of the blade (2) passes through the blade slot from the bottom of the fixing plate (1) and extends into the tube clamp groove (101).

6. The tool as described in claim 1, suitable for cutting PVC pipes into strip samples and performing bending tests, characterized in that... A protective cover (6) is provided on the outer side of each of the two blades (2), and the two protective covers (6) are fixedly installed on the top surface of the fixing plate (1).

7. The tool as described in claim 1, suitable for cutting PVC pipes into strip samples and performing bending tests, characterized in that... The drive mechanism includes a motor and a rotating shaft. The motor is installed inside a protective cover (6). The rotating shaft is fixedly installed at the center of the two blades (2), and one end of the rotating shaft is fixedly connected to the output shaft of the motor. Thus, the two blades (2) rotate and cut under the drive of the same motor.

8. A tool as described in claim 6, suitable for cutting PVC pipes into strip samples and performing bending tests, characterized in that... The driving mechanism includes two motors and two rotating shafts. The two motors are respectively located inside the two protective covers (6). The center of each of the two blades (2) is fixedly connected to a rotating shaft and is fixedly connected to the output shaft of the motor in the corresponding protective cover (6) through the rotating shaft. Thus, the two blades (2) are rotated and cut under the driving action of their adjacent motors.

9. A tool as described in claim 7 or 8, suitable for cutting PVC pipes into strip samples and performing bending tests, characterized in that... The motor is fixedly mounted on the inner side of the protective cover (6) or on the top surface of the fixing plate (1).

10. A tool as described in claim 1, suitable for cutting PVC pipes into strip samples and performing bending tests, characterized in that... A pair of handles (5) are also provided on both sides of the fixing plate (1).

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