Automatic tool for processing seam of PVC (polyvinyl chloride) floor coiled material
By designing automated welding tools that drive the trolley and welding frame, the problems of positioning accuracy and welding wire supply in PVC floor roll joint welding were solved, realizing automated and efficient construction of PVC floor roll welding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 2ND CONSTR CO LTD OF CHINA CONSTR 5TH ENG BUREAU
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
In the current process of PVC floor roll installation, the joint welding suffers from insufficient positioning accuracy and inconvenience in automatic welding wire supply, resulting in non-straight welding paths, difficulty in guaranteeing quality, and complicated operation that is difficult for novices to master.
An automated tool was designed, comprising a drive trolley, a movable arm, positioning wheels, mounting clips, a hot melt welding machine, and a wire welding frame. The drive trolley moves the hot melt welding machine along the joint, and combined with the freely swinging positioning wheels and an adjustable wire supply system, the welding path is automated and the wire is continuously supplied.
It automates the welding of PVC floor rolls, ensuring precise welding paths, reducing operational difficulty, and improving construction efficiency and quality consistency. It is suitable for the construction needs of different specifications of rolls.
Smart Images

Figure CN224228208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVC roll paving technology, and in particular to an automatic tool for treating the joints of PVC roll flooring. Background Technology
[0002] In the installation of PVC floor rolls, joint treatment is a crucial step in ensuring overall installation quality. Traditional joint welding relies primarily on manual operation, requiring workers to use handheld hot air welding torches to heat and weld, while manually controlling the weld line direction and speed. This method has several drawbacks: First, manual operation makes it difficult to guarantee the straightness and consistency of the welding path, easily leading to welding deviations; second, post-weld finishing processes require additional tools and operations, extending the construction cycle. Furthermore, traditional methods demand a high level of skill from operators; novices often struggle to master the appropriate welding temperature and movement speed, easily resulting in quality problems such as incomplete welds and over-welds. While some semi-automatic welding equipment exists, it still has significant shortcomings in positioning accuracy and automatic weld line supply, failing to achieve truly fully automated operation.
[0003] Therefore, in response to the above phenomenon, an automatic tool for treating the joints of PVC floor rolls is proposed to meet the needs of practical use. Utility Model Content
[0004] This utility model provides an automatic tool for treating the joints of PVC floor rolls, which solves the technical problems of insufficient positioning accuracy and automatic welding wire supply in the semi-automatic welding equipment currently used in the installation of PVC rolls.
[0005] To solve the above-mentioned technical problems, this utility model provides an automatic tool for treating the joints of PVC floor rolls, including a drive trolley, a movable arm, positioning wheels, mounting clips, a hot melt welder, and a welding frame; the bottom of the drive trolley is provided with a pair of symmetrically arranged drive wheels, the movable arm is movably connected to one side of the drive trolley, the positioning wheels are rotatably connected to one end of the movable arm, the top of the drive trolley is tilted, the mounting clips are detachably installed on the tilted surface of the drive trolley, the hot melt welder is fixed to the tilted surface of the drive trolley by the mounting clips, and the welding frame is set on the top of the drive trolley.
[0006] In some embodiments, the positioning wheel follows the same path as the front end of the hot melt welding machine, and the shovel blade is located behind the hot melt welding machine in the direction of travel.
[0007] In some embodiments, the inclined surface of the drive trolley is provided with a mounting groove, the hot melt welding machine is disposed in the mounting groove, the two ends of the mounting buckle are fixed to the inclined surface of the drive trolley by screws, the inner wall of the mounting buckle is provided with a rubber pad, and the mounting buckle is in contact with the surface of the hot melt welding machine through the rubber pad.
[0008] In some embodiments, the hot melt welding machine is provided with a welding wire body and a Y-shaped head. The Y-shaped head is located at the front end of the hot melt welding machine. One end of the welding wire body is fitted into the Y-shaped head, and the other end of the welding wire body is connected to the welding wire frame.
[0009] In some embodiments, the wire bonding frame includes a take-up roller and a mounting post; the mounting post is disposed on the top of the drive trolley, the take-up roller is sleeved on the surface of the mounting post, and one end of the wire bonding body is wound around the surface of the take-up roller.
[0010] In some embodiments, the wire bonding frame further includes an adjusting nut, a friction plate, and a spring; the adjusting nut is threaded to the top of the mounting post, the top and bottom of the spring are respectively connected to the adjusting nut and the friction plate, and the bottom of the friction plate is in contact with the top of the take-up roller.
[0011] Compared with related technologies, the automatic tool for treating joints in PVC floor rolls provided by this utility model has the following advantages:
[0012] This utility model provides an automated tool for treating seams in PVC floor rolls. A drive trolley automatically moves a hot melt welding machine along the seam, and with the precise guidance of freely swinging positioning wheels, it achieves automatic tracking of the welding path, effectively avoiding deviations caused by manual operation. The hot melt welding machine adopts an inclined installation design to ensure the optimal melting angle of the welding wire. The installation clips and rubber pads ensure both equipment stability and facilitate quick assembly and disassembly of the hot melt welding machine. The welding wire holder uses an adjustable friction winding mechanism to automatically supply welding wire, avoiding the tedious manual wire splicing operation.
[0013] This invention provides an automated tool for treating joints in PVC roll flooring, integrating multiple processes such as manual positioning and wire supply in traditional PVC roll welding into an automated process, significantly reducing the technical requirements for operators. The linkage design between the positioning wheel and the hot melt welding machine ensures the accuracy of the welding path, while the adjustable wire supply system guarantees the stability of the welding process. The entire set of equipment is compact and easy to operate, suitable for standardized construction environments, and can be easily adjusted to meet the welding needs of different roll specifications, possessing wide applicability and promotional value. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1;
[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0016] Figure 3 This is a schematic cross-sectional view of the wire bonding frame of this utility model.
[0017] The diagram is labeled as follows: 1. Drive trolley; 11. Drive wheel; 12. Mounting slot; 2. Movable arm; 3. Positioning wheel; 4. Mounting buckle; 5. Hot melt welding machine; 51. Welding wire body; 52. Y-shaped head; 6. Welding wire frame; 7. Connecting rod; 8. Shovel trolley; 9. Shovel blade; 61. Take-up roller; 62. Mounting column; 63. Adjusting nut; 64. Friction plate; 65. Spring; 81. Moving trolley; 82. Roller; 83. Connecting column; 84. Fixed column; 85. Counterweight. Detailed Implementation
[0018] Example 1
[0019] This embodiment provides an automated tool for treating seams in PVC floor rolls, such as... Figure 1-3 As shown, this utility model includes a drive trolley 1, a movable arm 2, positioning wheels 3, mounting clips 4, a hot melt welding machine 5, and a wire bonding frame 6. The bottom of the drive trolley 1 is equipped with a pair of symmetrically arranged drive wheels 11 for moving the equipment; the movable arm 2 is movably connected to one side of the drive trolley 1 and can swing freely to adjust the position of the positioning wheels 3; the positioning wheels 3 are rotatably connected to one end of the movable arm 2 for precise guidance; the top of the drive trolley 1 is tilted to facilitate the installation of the hot melt welding machine 5; the mounting clips 4 are detachably installed on the tilted surface of the drive trolley 1 to fix the hot melt welding machine 5; the hot melt welding machine 5 is fixed to the tilted surface of the drive trolley 1 by the mounting clips 4 to achieve wire bonding; the wire bonding frame 6 is located on the top of the drive trolley 1 for wire supply.
[0020] The positioning wheel 3 follows the same path as the front end of the hot melt welding machine 5, ensuring accurate welding position.
[0021] In this embodiment, the positioning wheel 3 can swing freely and naturally fall into the PVC roll joint under the action of gravity. When the trolley 1 moves forward, the positioning wheel 3 always moves along the joint, and the hot melt welding machine 5 melts the welding wire body 51 and covers the joint, realizing the automation of PVC welding wire construction.
[0022] The inclined surface of the drive trolley 1 is provided with an installation groove 12, the hot melt welding machine 5 is set in the installation groove 12, the two ends of the installation buckle 4 are fixed to the inclined surface of the drive trolley 1 by screws, the inner wall of the installation buckle 4 is provided with a rubber pad, and the installation buckle 4 is in contact with the surface of the hot melt welding machine 5 through the rubber pad.
[0023] The tilted installation of the hot melt welding machine 5 maintains its optimal working angle, and the mounting clip 4 is secured with screws and reinforced with rubber pads. The fit between the mounting slot 12 and the mounting clip 4 allows for flexible assembly and disassembly of hot melt welding machines 5 of various sizes, adapting to different construction needs.
[0024] Among them, such as Figure 2 As shown, the hot melt welding machine 5 is equipped with a welding wire body 51 and a Y-shaped head 52. The Y-shaped head 52 is located at the front end of the hot melt welding machine 5. One end of the welding wire body 51 is fitted into the Y-shaped head 52, and the other end of the welding wire body 51 is connected to the welding wire frame 6.
[0025] Y-shaped 52 guides the wire body 51 to melt and fill the joint, while the wire bonding frame 6 continuously supplies the wire to ensure continuous replenishment of the wire during automated welding.
[0026] Example 2
[0027] Based on Example 1, such as Figure 3 As shown, the wire bonding frame 6 includes a take-up roller 61 and a mounting post 62; the mounting post 62 is located on the top of the drive trolley 1, the take-up roller 61 is sleeved on the surface of the mounting post 62, and one end of the wire bonding body 51 is wound around the surface of the take-up roller 61.
[0028] The take-up roller 61 can rotate freely and automatically releases the welding wire body 51 according to welding requirements, achieving efficient feeding.
[0029] The wire bonding frame 6 also includes an adjusting nut 63, a friction plate 64, and a spring 65; the adjusting nut 63 is threaded to the top of the mounting post 62, the top and bottom of the spring 65 are respectively connected to the adjusting nut 63 and the friction plate 64, and the bottom of the friction plate 64 is in contact with the top of the take-up roller 61.
[0030] The compression of the spring 65 can be adjusted by rotating the adjusting nut 63, thereby controlling the resistance of the friction plate 64 to the take-up roller 61 and preventing the welding wire from being released too quickly, resulting in tangling or loosening.
[0031] Implementation steps:
[0032] 1. Install the hot melt welding machine 5: Place the hot melt welding machine 5 into the mounting slot 12 of the drive trolley 1 and fix it with the mounting clip 4 to ensure that the rubber pad fits tightly to enhance stability.
[0033] 2. Connect the wire bonding frame 6: Pass one end of the wire bonding body 51 through the Y-shaped head 52 of the hot melt welding machine 5, and wrap the other end around the take-up roller 61 of the wire bonding frame 6. Adjust the adjusting nut 63 to control the tension of the wire bonding.
[0034] 3. Adjust positioning wheel 3: Let the positioning wheel 3 at the end of the movable arm 2 hang down naturally so that it is engaged in the PVC roll joint to ensure accurate welding path.
[0035] 4. Start the hot melt welding machine 5: Preheat the hot melt welding machine 5 to the working temperature so that the Y-shaped head 52 can stably melt the wire body 51.
[0036] 5. Drive the trolley 1 forward: Drive the trolley 1 to move along the seam, the positioning wheel 3 keeps the path stable, and the hot melt welding machine 5 continuously melts the welding line and fills the seam.
[0037] 6. Remove excess solder wire: Use a scraper to trim excess solder wire.
[0038] 7. Check welding quality: Confirm that the joint weld is flat and free of incomplete welds or burrs.
[0039] 8. Clean the equipment: Remove the remaining welding wire from the welding wire frame 6 and clean the Y-shaped head 52 of the hot melt welding machine 5.
Claims
1. An automatic tool for treating seams in PVC floor rolls, characterized in that, The device includes a drive trolley, a movable arm, positioning wheels, mounting clips, a hot melt welding machine, and a wire bonding frame. The bottom of the drive trolley is equipped with a pair of symmetrically arranged drive wheels. The movable arm is movably connected to one side of the drive trolley. The positioning wheels are rotatably connected to one end of the movable arm. The top of the drive trolley is tilted. The mounting clips are detachably installed on the tilted surface of the drive trolley. The hot melt welding machine is fixed to the tilted surface of the drive trolley by the mounting clips. The wire bonding frame is located on the top of the drive trolley.
2. The automatic tool for treating seams in PVC floor rolls according to claim 1, characterized in that, The positioning wheel follows the same path as the front end of the hot melt welding machine.
3. The automatic tool for treating seams in PVC floor rolls according to claim 1, characterized in that, The inclined surface of the drive trolley is provided with an installation groove, the hot melt welding machine is set in the installation groove, and the two ends of the installation buckle are fixed to the inclined surface of the drive trolley by screws. The inner wall of the installation buckle is provided with a rubber pad, and the installation buckle is in contact with the surface of the hot melt welding machine through the rubber pad.
4. An automatic tool for treating seams in PVC floor rolls according to claim 1, characterized in that, The hot melt welding machine is equipped with a welding wire body and a Y-shaped head. The Y-shaped head is located at the front end of the hot melt welding machine. One end of the welding wire body is fitted into the Y-shaped head, and the other end of the welding wire body is connected to the welding wire frame.
5. An automatic tool for treating seams in PVC floor rolls according to claim 4, characterized in that, The wire bonding frame includes a take-up roller and a mounting post; the mounting post is located on the top of the drive trolley, the take-up roller is sleeved on the surface of the mounting post, and one end of the wire bonding body is wound around the surface of the take-up roller.
6. An automatic tool for treating seams in PVC floor rolls according to claim 5, characterized in that, The wire bonding frame also includes an adjusting nut, a friction plate, and a spring; the adjusting nut is threaded to the top of the mounting column, the top and bottom of the spring are respectively connected to the adjusting nut and the friction plate, and the bottom of the friction plate is in contact with the top of the take-up roller.