Automatic scribing device for PVC-UH pipe
The PVC-UH pipe automatic marking device addresses the inaccuracy and inefficiency of manual marking by integrating adjustable mechanisms for synchronized line marking on cutting machines, ensuring precise and efficient PVC-UH pipe preparation.
Patent Information
- Application Number
- CN202422071534.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The marking and scribing at the socket ends of the existing PVC-UH tubes are of poor accuracy and efficiency, which cannot meet the needs of large-scale fully automatic production.
A horizontal and vertical adjustment marking device is provided on the PVC-UH tube cutting machine, including an adjustment mechanism and a pen holder, the tip of the oil pen contacts the pipe wall, and the marking is synchronized, combining cylinder drive and scale adjustment to ensure accurate and efficient marking.
It realizes synchronous marking of PVC-UH tubes during fixed length cutting, with high accuracy and efficiency, meeting the needs of large-scale production.
Smart Images
Figure CN223099206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of municipal pipeline manufacturing, in particular to an automatic scribing device for PVC-UH pipes with accurate scribing and high efficiency. Background Art
[0002] The PVC-UH pipe adopts an integrally formed steel skeleton and rubber ring socket structure, and has excellent properties such as high strength, high pressure resistance and high ring stiffness. It has been widely used in the fields of municipal engineering, industry, construction industry, etc. When the PVC-UH pipe is connected and installed, its socket end needs to be inserted into the socket end and sealed. The national standard has specific requirements for the insertion depth of the socket of the PVC-UH pipe. Therefore, it is necessary to pre-mark the insertion depth at the socket end of the PVC-UH pipe to facilitate subsequent connection operations. At present, the manual operation method is generally used to scribe the socket end of the PVC-UH pipe with a fixed length cut. Due to the influence of multiple factors such as the on-site environment and manual operation errors, the accuracy and visibility of the above-mentioned marked scribing are poor and the scribing efficiency is low, which cannot meet the needs of large-scale fully automatic production of PVC-UH pipes. Summary of the Utility Model
[0003] The utility model mainly solves the above-mentioned existing technical problems, and provides an automatic scribing device for PVC-UH pipes with accurate scribing and high efficiency.
[0004] In order to solve the above-mentioned existing technical problems, the utility model mainly adopts the following technical solution:
[0005] An automatic scribing device for PVC-UH pipes of the utility model is arranged on a PVC-UH pipe cutting machine and is used for scribing and marking the socket of the PVC-UH pipe. The PVC-UH pipe cutting machine includes a cutting frame that rotates annularly along the central axis of the PVC-UH pipe. A saw blade and a chamfering blade are arranged on the cutting frame. The scribing device includes an adjusting mechanism and a pen holder. The adjusting mechanism is fixedly arranged on the above-mentioned cutting frame and rotates around with the cutting frame. The pen holder is fixedly arranged on the adjusting mechanism and rotates with the adjusting mechanism. An oil pen for scribing is fixedly arranged on the pen holder. The tip of the oil pen faces the pipe wall of the PVC-UH pipe and contacts the pipe wall of the PVC-UH pipe. By arranging the scribing device on the cutting frame of the PVC-UH pipe cutting machine, scribing can be carried out synchronously when the PVC-UH pipe is cut to a fixed length, so that the scribing process is accurate and the efficiency is high.
[0006] Preferably, the adjusting mechanism includes a lateral adjusting mechanism and a longitudinal adjusting mechanism. The lateral adjusting mechanism is used to adjust the left-right lateral position of the oil pen. The lateral adjusting mechanism includes a support base, a lateral lead screw and a lateral guide rod disposed on the support base along the axial direction of the PVC-UH pipe, and a lateral adjusting handle for driving the lateral lead screw. The support base is fixedly disposed on the above-mentioned cutting frame. A lateral slider that translates with the lateral lead screw is fixedly provided on the lateral lead screw. The lateral guide rod is parallel to the lateral lead screw and is connected to the above-mentioned lateral slider. The longitudinal adjusting mechanism is used to adjust the radial depth of the oil pen. The longitudinal adjusting mechanism includes a cylinder. The cylinder is disposed on the above-mentioned lateral slider and is perpendicular to the axis of the PVC-UH pipe. The above-mentioned pen holder is fixedly disposed at the end of the piston rod of the cylinder and longitudinally moves with the telescopic movement of the piston rod of the cylinder. By setting the lateral adjusting mechanism and the longitudinal adjusting mechanism on the adjusting mechanism and matching with the cylinder drive, the scribing position and the scribing thickness can be flexibly set according to the socket insertion depth of the PVC-UH pipe and the scribing requirements of the oil pen, so that the scribing is accurate and efficient.
[0007] Preferably, the longitudinal adjusting mechanism further includes a longitudinal lead screw, a longitudinal guide rod, and a longitudinal adjusting handle for driving the longitudinal lead screw. The above-mentioned longitudinal lead screw and longitudinal guide rod are fixedly disposed on the lateral slider and their axes are perpendicular to the central axis of the PVC-UH pipe. A longitudinal slider that translates along the longitudinal lead screw is provided on the longitudinal lead screw. The longitudinal guide rod is parallel to the longitudinal lead screw and is connected to the above-mentioned longitudinal slider. The above-mentioned cylinder is fixedly disposed on the longitudinal slider. The above-mentioned pen holder is fixedly disposed at the end of the piston rod of the cylinder and longitudinally moves with the telescopic movement of the piston cylinder. By setting an adjustable longitudinal adjusting mechanism, the contact degree between the oil pen and the wall of the PVC-UH pipe can be flexibly and accurately adjusted according to the pipe diameter of the PVC-UH pipe, meeting the scribing requirements of PVC-UH pipes with different pipe diameters, and correspondingly extending the service life of the oil pen.
[0008] Preferably, a pen barrel is provided on the pen holder. A spring is embedded in the pen barrel. The bottom end of the spring is fixedly connected to the inner bottom of the pen barrel. The above-mentioned oil pen is embedded in the pen barrel and its bottom is fixedly connected to the top end of the above-mentioned spring. The built-in compression spring pushes the oil pen, so that the tip of the oil pen always presses tightly against the wall of the PVC-UH pipe during the scribing process, ensuring the accuracy and clarity of the scribing.
[0009] Preferably, horizontal scale lines are provided on the upper surface of the cutting frame, and vertical scale lines are provided on the upper surface of the lateral slider, facilitating the accurate adjustment of the oil pen horizontally and vertically.
[0010] The beneficial effects of the present utility model are: By setting a scribing device that can be adjusted horizontally and vertically on the PVC-UH pipe cutting machine, the scribing operation can be synchronously performed when the PVC-UH pipe is cut to a fixed length, the scribing is accurate and clear, and the scribing efficiency is relatively high. Description of the Drawings
[0011] Figure 1It is a schematic structural diagram of the present utility model.
[0012] In the figure, 10 is a PVC-UH pipe, 20 is a cutting frame, 201 is a saw blade, 202 is a chamfering blade, 30 is a pen holder, 40 is an oil pen, 50 is a horizontal adjustment mechanism, 501 is a support seat, 502 is a horizontal lead screw, 503 is a horizontal guide rod, 504 is a horizontal adjustment handle, 505 is a horizontal slider, 60 is a vertical adjustment mechanism, 601 is a cylinder, 602 is a vertical lead screw, 603 is a vertical guide rod, 604 is a vertical adjustment handle, and 605 is a vertical slider. Specific embodiments
[0013] The technical solution of the present utility model will be further specifically described below through embodiments in conjunction with the accompanying drawings.
[0014] Embodiment: The automatic scribing device for PVC-UH pipes in this embodiment is installed on a PVC-UH pipe cutting machine and is used for scribing and marking the socket end of the PVC-UH pipe 10. As Figure 1 shown, the PVC-UH pipe cutting machine includes a cutting frame 20 that rotates in a ring shape. A saw blade 201 for fixed-length cutting and a chamfering blade 202 for chamfering the pipe orifice are installed on the cutting frame. The above scribing device includes an adjustment mechanism and a pen holder 30. The above adjustment mechanism is installed on the cutting frame and rotates around with the cutting frame. An oil pen 40 for tracing the marking line is installed on the above pen holder. The adjustment mechanism includes a horizontal adjustment mechanism 50 and a vertical adjustment mechanism 60. The horizontal adjustment mechanism is used to adjust the left-right horizontal position of the oil pen, and the vertical adjustment mechanism is used to adjust the longitudinal depth position of the oil pen. Among them, the horizontal adjustment mechanism includes a support seat 501, a horizontal lead screw 502 and a horizontal guide rod 503 that are installed on the support seat and are along the horizontal direction of the PVC-UH pipe, and a horizontal adjustment handle 504 for driving the rotation of the horizontal lead screw. The above support seat is installed on the cutting frame. A horizontal slider 504 that can translate as the horizontal lead screw rotates is installed on the above horizontal lead screw. The horizontal guide rod is parallel to the horizontal lead screw and is connected to the horizontal slider, and is used to support and guide the sliding of the horizontal slider. The above vertical adjustment mechanism is installed on the horizontal slider. The vertical adjustment mechanism includes a cylinder 601, a vertical lead screw 602, a vertical guide rod 603 and a vertical adjustment handle 604 for driving the vertical lead screw. The above vertical lead screw is installed on the horizontal slider and its axis is perpendicular to the axis of the PVC-UH pipe. A vertical slider 605 that can translate along the vertical lead screw is installed on the vertical lead screw. The vertical guide rod is parallel to the vertical lead screw and is connected to the above vertical slider. The above cylinder is installed on the vertical slider. The above pen holder is fixedly arranged at the end of the piston rod of the cylinder and moves longitudinally with the piston rod of the cylinder. A pen barrel is designed on the pen holder. A spring and an oil pen are sequentially embedded in the pen barrel. The bottom end of the above spring is fixedly connected to the inner bottom surface of the pen barrel, and the top surface of the spring is fixedly connected to the bottom surface of the above oil pen and pushes the oil pen so that the tip of the oil pen faces and contacts the pipe wall of the PVC-UH pipe.
[0015] During use, according to the pipe diameter of the PVC-UH pipe, the insertion depth of the socket of the PVC-UH pipe, and the parameter of the length of the grease pen, first open the air cylinder to fully extend the piston rod of the air cylinder, then operate the longitudinal adjustment handle to drive the longitudinal lead screw to rotate, drive the longitudinal slider to move back and forth along the longitudinal guide rod, and the longitudinal depth of the grease pen can be adjusted so that the tip of the grease pen aligns with and touches the pipe wall of the PVC-UH pipe. Then, operate the transverse adjustment handle to drive the transverse lead screw to rotate, drive the transverse slider to move left and right along the transverse guide rod, and the transverse distance between the grease pen and the pipe end of the PVC-UH pipe can be adjusted to meet the requirements of the insertion depth of the socket. After that, close the air cylinder to retract the piston rod of the air cylinder, complete the adjustment of the position of the grease pen, and prepare for scribing.
[0016] When the PVC-UH pipe is cut to a fixed length, the cutting frame first vertically advances to the cutting position, the saw blade starts to cut the pipe wall of the PVC-UH pipe, and the chamfering blade then follows to chamfer the cut pipe orifice. At the same time, the air cylinder is opened, and the grease pen extends forward with the piston rod of the air cylinder and touches the pipe wall of the PVC-UH pipe. Next, the cutting frame starts to move circularly along the central axis of the PVC-UH pipe, the saw blade cuts the PVC-UH pipe circumferentially, the chamfering blade then follows to chamfer the pipe orifice, and the grease pen moves circularly synchronously with the cutting frame and scribes the PVC-UH pipe. When the circumferential cutting and scribing are completed, the cutting frame retracts to separate the saw blade and the chamfering blade from the PVC-UH pipe, the air cylinder is closed, and the grease pen returns with the piston rod of the air cylinder. Finally, the cutting frame returns to the initial position to prepare for the next cutting.
[0017] In the description of the present invention, the technical terms "upper", "lower", "front", "rear", "left", "right", "longitudinal", "transverse", "inner", "outer", etc. indicating direction or position relationship are based on the direction or position relationship shown in the drawings, and are only for the convenience of describing and understanding the technical solution of the present invention. The above description does not limit the present invention, and the present invention is not limited to the examples described above. Any changes, modifications, additions or substitutions made by those of ordinary skill in the art within the substantial scope of the present invention shall be regarded as the protection scope of the present invention.
Claims
1. An automatic scribing device for PVC-UH pipes, which is installed on a PVC-UH pipe cutting machine and is used to scribe and mark the socket of the PVC-UH pipe (10). The PVC-UH pipe cutting machine includes a cutting frame (20) that rotates annularly along the central axis of the PVC-UH pipe. A saw blade (201) and a chamfering blade (202) are provided on the cutting frame. It is characterized in that: The scribing device includes an adjusting mechanism and a pen holder (30). The adjusting mechanism is fixedly installed on the above-mentioned cutting frame and rotates around with the cutting frame. The pen holder is fixedly installed on the adjusting mechanism and rotates with the adjusting mechanism. An oil pen (40) for scribing is fixedly installed on the pen holder. The tip of the oil pen faces the pipe wall of the PVC-UH pipe and contacts the pipe wall of the PVC-UH pipe.
2. The PVC-UH pipe automatic scribing device according to claim 1, characterized in that: The adjusting mechanism includes a horizontal adjusting mechanism (50) and a vertical adjusting mechanism (60). The horizontal adjusting mechanism is used to adjust the left-right horizontal position of the oil pen. The horizontal adjusting mechanism includes a support seat (501), a horizontal lead screw (502) and a horizontal guide rod (503) that are fixedly installed on the support seat and along the axial direction of the PVC-UH pipe, and a horizontal adjusting handle (504) for driving the horizontal lead screw. The support seat is fixedly installed on the above-mentioned cutting frame (20). A horizontal slider (505) that moves horizontally with the horizontal lead screw is fixedly installed on the horizontal lead screw. The horizontal guide rod is parallel to the horizontal lead screw and is connected to the above-mentioned horizontal slider. The vertical adjusting mechanism is used to adjust the radial depth of the oil pen. The vertical adjusting mechanism includes a cylinder (601). The cylinder is installed on the above-mentioned horizontal slider and is perpendicular to the axis of the PVC-UH pipe. The above-mentioned pen holder (30) is fixedly installed at the end of the piston rod of the cylinder and moves longitudinally as the piston rod of the cylinder expands and contracts.
3. The PVC-UH pipe automatic scribing device according to claim 2, wherein: The vertical adjusting mechanism (60) further includes a vertical lead screw (602), a vertical guide rod (603), and a vertical adjusting handle (604) for driving the vertical lead screw. The above-mentioned vertical lead screw and vertical guide rod are fixedly installed on the horizontal slider (505), and their axes are perpendicular to the central axis of the PVC-UH pipe (10). A vertical slider (605) that moves along the vertical lead screw is provided on the vertical lead screw. The vertical guide rod is parallel to the vertical lead screw and is connected to the above-mentioned vertical slider. The above-mentioned cylinder (601) is fixedly installed on the vertical slider. The above-mentioned pen holder (30) is fixedly installed at the end of the piston rod of the cylinder and moves longitudinally as the piston of the cylinder expands and contracts.
4. The PVC-UH pipe automatic scribing device according to claim 1 or 2 or 3, characterized in that: A pen barrel is provided on the pen holder (30). A spring is embedded in the pen barrel. The bottom end of the spring is fixedly connected to the inner bottom of the pen barrel. The above-mentioned oil pen (40) is embedded in the pen barrel, and its bottom is fixedly connected to the top end of the above-mentioned spring.
5. The PVC-UH pipe automatic scribing device according to claim 2 or 3, characterized in that: Horizontal scale lines are provided on the upper surface of the cutting frame (20), and vertical scale lines are provided on the upper surface of the horizontal slider (505).