A PVC pipe sawing device that is easy to clamp safely.

Abstract

This utility model relates to the field of PVC pipe processing and discloses a PVC pipe sawing device that facilitates safe clamping. It includes a base and a clamping motor. The clamping motor is fixedly connected to the rear of the base, and a gear is fixedly connected to the output shaft of the clamping motor. The front and rear ends of the gear are respectively meshed with gear rails, and each gear rail has a set of movable seats fixedly connected to its top. This PVC pipe sawing device, by setting up clamping plates, allows for clamping. During clamping, a cylinder is activated, pushing the clamping plates forward via a connector to adjust the clamping position. Then, the clamping motor is activated, driving the gear to rotate, causing the two sets of gear rails to move relative to each other. The two sets of fixed plates then move relative to each other, allowing the two clamps to clamp the PVC pipe from the side. This achieves the action steps of first determining the distance and then clamping, facilitating segmented, fixed-distance cutting with the saw blade. The automatic clamping process is safer and solves the safety problems associated with manual clamping.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe processing technology, specifically to a PVC pipe sawing device that facilitates safe clamping. Background Technology

[0002] PVC pipes are widely used in construction, drainage, and cable conduits. To improve processing efficiency and sawing accuracy, they are typically cut to a fixed length. In actual production, the pipes must be clamped and positioned before sawing to ensure that they do not shift or deviate during the sawing process. However, currently common equipment still mainly uses manual operation when clamping PVC pipes. That is, the operator manually pushes the pipe into the clamping area, positions and fixes it, and then starts the sawing mechanism to complete the segmented cutting.

[0003] This manual clamping method presents several safety hazards: Firstly, operators need to bring their hands close to the sawing area, and during the positioning process, they are prone to scratches, pinching injuries, or even serious sawing injuries due to misoperation or equipment start-up delays. Secondly, manual operation makes it difficult to achieve precise and synchronized clamping on both sides, which can easily lead to problems such as insecure clamping, skewing, and uneven clamping force. This not only affects the sawing accuracy but may also cause the pipe to fall off due to vibration or rebound during the sawing process, thereby exacerbating safety risks.

[0004] Therefore, there is an urgent need for a PVC pipe cutting device that is easy to clamp safely and solves the above-mentioned technical defects. Utility Model Content

[0005] The purpose of this invention is to provide a PVC pipe sawing device that is easy to clamp safely, so as to solve the problem of insufficient safety of manual clamping mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PVC pipe sawing device that facilitates safe clamping, comprising a base and a clamping motor. The clamping motor is fixedly connected to the rear of the base. A gear is fixedly connected to the output shaft of the clamping motor. Gears are meshed with gear rails at their front and rear ends. A set of movable seats is fixedly connected to the top of each gear rail. A fixed plate is fixedly connected to the front end of each movable seat. A cylinder is fixedly connected to the outer wall of each fixed plate. A connector is fixedly connected to the piston end of each cylinder. A clamping plate is fixedly connected to the front end of each connector. A clamp is fixedly connected to the opposite side of each clamping plate. The clamp moves through the fixed plate.

[0007] As a further technical solution of this utility model, a limit plate is welded to one side of each gear rail, and the two sets of gear rails form a centrally symmetrical structure about the gear.

[0008] As a further technical solution of this utility model, the clamp is provided in two sets, the base surface is machined with a sliding groove for the fixed plate to move, and the clamping side of the clamp is machined into a concave arc surface that matches the specifications of the PVC pipe.

[0009] As a further technical solution of this utility model, a gear reduction motor is fixedly connected to the middle position inside the base, and a screw is fixedly connected to the output shaft of the gear reduction motor. The screw is movably assembled on the top of the base, and a threaded sleeve is movably sleeved on the outside of the screw. A feeding seat is fixedly connected to the outside of the threaded sleeve, and guide posts are fixed on both sides of the top of the base.

[0010] As a further technical solution of this utility model, guide sleeves are welded to the four corners of the feeding seat, and the guide sleeves are sleeved on the outside of the guide post and move.

[0011] As a further technical solution of this utility model, the guide post is provided in two sets, and the two sets of guide posts are parallel to each other.

[0012] As a further technical solution of this utility model, a gantry frame is fixedly connected to the top of the base, a saw blade is installed on the top of the gantry frame, and hydraulic rods are installed on both sides of the base at corresponding positions on the gantry frame. The top of the hydraulic rods is fixedly connected to the saw blade to support the lifting and lowering of the saw blade.

[0013] As a further technical solution of this utility model, a controller is fixedly connected to the right side of the outer wall of the gantry frame to control the travel distance of each motor, cylinder, and fixed plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the PVC pipe sawing device that facilitates safe clamping not only achieves automatic clamping and makes the process safer, but also improves the flatness and precision of PVC pipe cutting, and increases the processing efficiency of PVC pipes.

[0015] The system is equipped with a clamping plate, a fixed plate, a slide rail, a cylinder, a connector, a movable seat, a gear rail, a limit plate, gears, and a clamping motor. The PVC pipe is placed on top of the feeding seat. During clamping, the cylinder is activated, and the clamping plate is pushed forward through the connector to adjust the clamping position. Then, the clamping motor is activated, which drives the gears to rotate, causing the two sets of gear rails to move relative to each other. The two sets of fixed plates move relative to each other, so that the two sets of clamps clamp the PVC pipe from the side. This realizes the action steps of first setting the distance and then clamping, which makes it easier for the saw to cut the pipe in sections at a fixed distance. The automatic clamping process is safer.

[0016] The system is equipped with hydraulic rods, a saw blade, and a clamp. Two sets of hydraulic rods drive the saw blade to rise and fall, and the clamp moves back and forth to adjust the clamping point so that the clamping position is as close as possible to the cutting line of the saw blade, forming a stable support. This effectively reduces cutting vibration during the sawing process and improves the flatness and accuracy of PVC pipe cutting.

[0017] Equipped with a geared motor, feeding seat, screw, threaded sleeve, guide sleeve, and guide post, the PVC pipe is placed on top of the feeding seat. The geared motor reduces the speed and transmits torque to the screw, which drives the threaded sleeve to push the feeding seat forward toward the cutting area. The four corner guide sleeves on the feeding seat are fitted onto the outside of the guide post and move to ensure that the feeding path is straight. After cutting, the clamping structure is opened to realize a cycle of fixed-distance feeding, re-clamping, and re-cutting, thereby completing continuous sawing operations and improving the processing efficiency of PVC pipes. Attached Figure Description

[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 2 This is a top view of the fixing plate structure of this utility model;

[0020] Figure 3 This is a bottom view cross-sectional structural diagram of the feeding seat of this utility model;

[0021] Figure 4 This is a top view of the fixture structure of this utility model.

[0022] In the diagram: 1. Gantry frame; 2. Controller; 3. Clamping plate; 4. Hydraulic rod; 5. Fixing plate; 6. Slide rail; 7. Base; 8. Feeding seat; 9. Screw; 10. Threaded sleeve; 11. Fixture; 12. Saw blade; 13. Cylinder; 14. Connector; 15. Movable seat; 16. Gear rail; 17. Limiting plate; 18. Gear; 19. Clamping motor; 20. Guide sleeve; 21. Guide column; 22. Gear reduction motor. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4An embodiment of this utility model provides a PVC pipe sawing device that facilitates safe clamping, comprising a base 7 and a clamping motor 19. The clamping motor 19 is fixedly connected to the rear of the base 7. The output shaft of the clamping motor 19 is fixedly connected to a gear 18. The front and rear ends of the gear 18 are respectively meshed with a toothed rail 16. Each toothed rail 16 is fixedly connected to a set of movable seats 15. The front end of each movable seat 15 is fixedly connected to a fixed plate 5. The outer wall of each fixed plate 5 is fixedly connected to a cylinder 13. The piston end of each cylinder 13 is fixedly connected to a connector 14. The front end of each connector 14 is fixedly connected to a clamping plate 3. The opposite side of each clamping plate 3 is fixedly connected to a clamp 11. The clamp 11 moves through the fixed plate 5. A limit plate 17 is welded to one side of each toothed rail 16. The two sets of toothed rails 16 form a centrally symmetrical structure about the gear 18.

[0025] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the PVC pipe is placed on top of the feeding seat 8. During clamping, the cylinder 13 is started, and the clamping plate 3 is pushed forward through the connector 14. The front and rear positions of the clamping are adjusted, and then the clamping motor 19 is started. The clamping motor 19 drives the gear 18 to rotate, which drives the two sets of toothed rails 16 to move relative to each other. The two sets of fixing plates 5 move relative to each other, so that the two sets of clamps 11 clamp the PVC pipe from the side. The limiting plate 17 is installed at the end of the stroke of the toothed rail 16 to prevent the toothed rail 16 from moving too much and derailing from the gear 18.

[0026] The clamp 11 is provided in two sets. The surface of the base 7 is machined with a groove 6 for the fixed plate 5 to move. The clamping side of the clamp 11 is machined with a concave arc surface that matches the specifications of the PVC pipe. The top of the base 7 is fixedly connected to the gantry frame 1. The top of the gantry frame 1 is equipped with a saw blade 12. The base 7 is equipped with hydraulic rods 4 on both sides at the corresponding positions of the gantry frame 1. The top of the hydraulic rods 4 is fixedly connected to the saw blade 12 to support the lifting and lowering of the saw blade 12. The right side of the outer wall of the gantry frame 1 is fixedly connected to the controller 2 to control the travel distance of each motor, cylinder 13, and fixed plate 5.

[0027] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the two sets of hydraulic rods 4 drive the saw blade 12 to rise and fall respectively. By moving the clamp 11 back and forth, the clamping point is adjusted so that the clamping position is as close as possible to the cutting line of the saw blade 12, forming a stable support, thereby effectively reducing the cutting vibration during the sawing process.

[0028] A gear reduction motor 22 is fixedly connected to the middle position inside the base 7. The output shaft of the gear reduction motor 22 is fixedly connected to a screw 9. The screw 9 is movably mounted on the top of the base 7. A threaded sleeve 10 is movably sleeved on the outside of the screw 9. A feeding seat 8 is fixedly connected to the outside of the threaded sleeve 10. Guide posts 21 are fixed on both sides of the top of the base 7. Guide sleeves 20 are welded to the four corners of the feeding seat 8. The guide sleeves 20 are sleeved on the outside of the guide posts 21 and can move. There are two sets of guide posts 21, and the two sets of guide posts 21 are parallel to each other.

[0029] Specifically, such as Figure 1 and Figure 3 As shown, the PVC pipe is placed on top of the feeding seat 8. The torque is transmitted to the screw 9 through the gear reduction motor 22. The screw 9 drives the threaded sleeve 10 to push the feeding seat 8 forward toward the cutting area. The four corner guide sleeves 20 on the feeding seat 8 are sleeved on the outside of the guide post 21 and move to ensure that the feeding path is straight. After the cutting is completed, the clamping structure is opened to realize the cycle of fixed-distance feeding, re-clamping, and re-cutting.

[0030] The computer software involved in the controller 2 carrier in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carrier. In other words, the computer software involved is an essential technical feature for solving the aforementioned technical problem, that is, it constitutes a necessary technical feature for solving the technical problem in this application, but it is not a differentiating technical feature for solving the technical problem, nor is it a point of technical improvement. The applicant has not made any technical improvements to the computer software involved in the aforementioned related hardware carrier, nor is it a key technical point of the invention.

[0031] Therefore, it can be seen that the "clamping motor 19", "cylinder 13", "gear reduction motor 22", "hydraulic rod 4", "saw blade 12" and other components involved in this application are all physical functional modules that combine computer software programs or protocols in the prior art with the hardware carrier of this application. The computer software programs involved in these physical functional modules are all technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction relationship between the various physical functional modules, that is, the improvement of the overall structure of this application, in order to solve the corresponding technical problems to be solved by this application.

[0032] Working principle: First, the PVC pipe is placed on top of the feeding seat 8. The system is started by the controller 2. The controller 2 has multiple preset program logics for clamping, feeding, and sawing. It can receive sensor feedback signals in real time and output corresponding control commands. The controller 2 first controls the movement of two sets of cylinders 13. The cylinders 13 adopt electro-pneumatic actuators with position feedback sensors. Their cylinder bodies are fixed to the outside of the fixed plate 5, and the piston rod is connected to the connector 14. When the cylinders move, the piston rod extends forward, driving the connector 14 to push the clamping plate 3 forward, thus moving the clamping plate 3 forward. The clamps 11 move closer to the PVC pipe in the slide groove 6. The two sets of clamps 11 are controlled by the controller. 2. Under the command, the fitting and positioning are completed to ensure that the pipe is stably clamped in the horizontal direction. Then, the controller 2 controls the clamping motor 19 to start. The clamping motor 19 is a bidirectional servo motor with encoder feedback. Its output shaft is vertically connected to the gear 18. The front and rear ends of the gear 18 mesh with the left and right sets of toothed rails 16 respectively. When the clamping motor 19 rotates, it drives the two sets of toothed rails 16 to move in opposite directions or back directions through the gear 18, so that the two side fixing plates 5 and the clamps 11 are clamped or released synchronously, thereby realizing automatic symmetrical clamping action. After the clamping is completed, the controller 2 controls the gear reduction motor 22 to start. The gear reduction motor 22 is a multi-stage gear reduction motor. The low-speed, high-torque motor of the speed-measuring mechanism has its output shaft connected to the screw 9. Through a threaded pair, it drives the threaded sleeve 10 fitted onto it to move forward, thereby pushing the feeding seat 8 connected to it forward along the surface of the base 7. Guide sleeves 20 are installed at the four corners of the feeding seat 8, cooperating with guide posts 21 fixed to the top of the base 7 to ensure stable, straight-line operation during the feeding process and prevent deviation. When the PVC pipe is fed to the designated sawing position, the controller 2 controls the action of two sets of hydraulic rods 4. The hydraulic rods 4 are electrically controlled proportional hydraulic cylinders, with their cylinder bodies fixed to both sides of the base 7. The top of the piston rod is fixedly connected to the saw blade 12, realizing the lifting and lowering control of the saw blade 12. Activating the hydraulic rods 4... After the downward action, the saw blade 12 is driven downward to perform the cutting operation. The saw blade 12 is a high-speed circular saw blade, powered by the high-speed rotation of the drive motor built into the top of the gantry frame 1 to complete the cutting of the PVC pipe. After the cutting is completed, the controller 2 issues commands in sequence, the hydraulic rod 4 rises and resets, the clamping motor 19 reverses, and drives the two sets of toothed rails 16 to move in the opposite direction, so that the clamp 11 releases the pipe and completes one cutting process. Similarly, the controller 2 continues to drive the feeding system to push the PVC pipe forward again to realize the positioning of the next cutting position. Then, the clamping-cutting-unclamping and other actions are repeated to form a cycle of fixed-distance feeding, automatic clamping, and continuous cutting.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A PVC pipe sawing device for facilitating safe clamping, comprising a base (7) and a clamping motor (19), characterized in that: A clamping motor (19) is fixedly connected to the rear of the base (7). A gear (18) is fixedly connected to the output shaft of the clamping motor (19). The front and rear ends of the gear (18) are respectively meshed with a toothed rail (16). A set of movable seats (15) is fixedly connected to the top of each toothed rail (16). A fixed plate (5) is fixedly connected to the front end of each movable seat (15). A cylinder (13) is fixedly connected to the outer wall of each fixed plate (5). A connector (14) is fixedly connected to the piston end of each cylinder (13). A clamping plate (3) is fixedly connected to the front end of each connector (14). A clamp (11) is fixedly connected to the opposite side of each clamping plate (3). The clamp (11) moves through the fixed plate (5).

2. The PVC pipe sawing device for easy and safe clamping according to claim 1, characterized in that: Each of the toothed rails (16) has a limit plate (17) welded to one side, and the two sets of toothed rails (16) form a centrally symmetrical structure about the gear (18).

3. The PVC pipe sawing device for easy and safe clamping according to claim 1, characterized in that: The clamp (11) is provided in two sets. The base (7) has a groove (6) on its surface for the fixed plate (5) to move. The clamping side of the clamp (11) is machined into a concave arc surface that matches the specifications of the PVC pipe.

4. A PVC pipe sawing device for easy and safe clamping according to claim 1, characterized in that: A gear reduction motor (22) is fixedly connected to the middle position inside the base (7). The output shaft of the gear reduction motor (22) is fixedly connected to a screw (9). The screw (9) is movably assembled on the top of the base (7). A threaded sleeve (10) is movably sleeved on the outside of the screw (9). A feeding seat (8) is fixedly connected to the outside of the threaded sleeve (10). Guide posts (21) are fixed on both sides of the top of the base (7).

5. A PVC pipe sawing device for easy and safe clamping according to claim 4, characterized in that: The feed seat (8) has guide sleeves (20) welded to its four corners, and the guide sleeves (20) are sleeved on the outside of the guide post (21) and move.

6. A PVC pipe sawing device for easy and safe clamping according to claim 4, characterized in that: The guide post (21) is provided in two sets, and the two sets of guide posts (21) are parallel to each other.

7. A PVC pipe sawing device for easy and safe clamping according to claim 1, characterized in that: The base (7) is fixedly connected to the top of the gantry frame (1), and a saw blade (12) is installed on the top of the gantry frame (1). The base (7) is equipped with hydraulic rods (4) on both sides at the corresponding positions of the gantry frame (1). The top of the hydraulic rods (4) is fixedly connected to the saw blade (12) to support the lifting and lowering of the saw blade (12).

8. A PVC pipe sawing device for easy and safe clamping according to claim 7, characterized in that: A controller (2) is fixedly connected to the right side of the outer wall of the gantry frame (1) to control the travel distance of each motor, cylinder (13), and fixed plate (5).

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