High speed nonwoven spot welding machine
Patent Information
- Application Number
- CN202522625471.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-11
AI Technical Summary
Existing nonwoven spot welding machines are not precise in operation, and are prone to low welding efficiency due to hand fatigue. In addition, the trace volatile substances generated during the welding process are diffused directly without treatment, affecting the health of operators and environmental performance.
The system employs a ball screw-driven lateral movement mechanism and a liftable spot welding head, combined with a transparent fume hood, activated carbon purification box, and negative pressure fan, to achieve flexible adjustment of the spot welding position and efficient collection and purification of flue gas.
It achieves precision and flexibility in non-woven fabric welding, reduces air pollution, and improves operational convenience and environmental friendliness.
Smart Images

Figure CN224928551U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nonwoven fabric processing technology, and in particular to a high-speed nonwoven fabric spot welding machine. Background Technology
[0002] Non-woven fabrics are widely used in medical, packaging, and daily necessities fields due to their lightweight, breathable, and environmentally friendly properties. During their processing, spot welding is often used to achieve local connections to meet the structural strength and molding requirements of the products. Currently, most non-woven fabric spot welding uses spot welding machines, which melt and solidify the non-woven fabric contact surfaces through energy conversion to achieve a reliable bond.
[0003] However, most existing nonwoven fabric spot welding machines are handheld, requiring operators to manually hold the welding head and align it to the welding position. This not only makes it difficult to guarantee the accuracy and consistency of the spot welding position, but also easily leads to low welding efficiency due to hand fatigue, especially in mass production or large-size nonwoven fabric processing scenarios. Furthermore, although the nonwoven fabric welding process does not produce large amounts of harmful fumes, the localized high temperatures may still generate trace amounts of volatiles. Existing spot welding machines generally lack dedicated fume treatment structures, allowing these volatiles to diffuse directly into the operating environment, potentially impacting operator health and failing to meet the environmental requirements of green production. Therefore, there is an urgent need to develop a high-speed nonwoven fabric spot welding machine with a screw-driven traverse mechanism and a height-adjustable welding head, enabling flexible adjustment of the welding position and precise completion of nonwoven fabric melting and welding. Simultaneously, a fume extraction system consisting of a fume hood, activated carbon purification box, and negative pressure fan can efficiently collect and purify welding fumes, reducing air pollution. This high-speed nonwoven fabric spot welding machine, combining the advantages of precise and flexible welding, convenient operation, and environmental friendliness, would overcome the shortcomings of current applications and meet current needs. Utility Model Content
[0004] The purpose of this invention is to provide a high-speed nonwoven spot welding machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-speed nonwoven fabric spot welding machine includes a chassis, a support plate, a transverse mechanism, a nonwoven fabric spot welding machine body, an electric telescopic rod, a lifting frame, and a smoke removal mechanism. The support plate is fixed inside the chassis, and the nonwoven fabric spot welding machine body is fixed to the rear side of the chassis. A welding head is connected to the nonwoven fabric spot welding machine body via a wire. The transverse mechanism is installed at the top inside the chassis and connected to the electric telescopic rod. The telescopic end of the electric telescopic rod is fixed to the lifting frame. The welding head is fixedly installed on the lifting frame. The smoke removal mechanism includes a transparent fume hood, a flexible hose, a purification box, and a negative pressure fan. The transparent fume hood is fixed to the lower side of the lifting frame, and the welding head passes through the transparent fume hood. The purification box and negative pressure fan are both fixed to the inner wall of the casing. The purification box is filled with activated carbon and is connected to the transparent fume hood via a flexible hose. The negative pressure fan is connected to the purification box via a pipe. The traversing mechanism includes a drive motor, a lead screw, a nut, a slider, and a guide rail. The drive motor is fixed to the top of the casing. The lead screw is rotatably connected to the top of the casing. The output shaft of the drive motor is connected to the lead screw via a coupling. A nut is installed on the lead screw. A slider is fixed to the upper side of the nut. The slider is slidably mounted on the guide rail. The guide rail is fixed to the top of the casing. The electric telescopic rod is fixedly installed to the lower side of the nut.
[0006] Preferably, the transparent smoke hood is made of transparent acrylic.
[0007] Preferably, the front side of the purification box is detachably connected to an end cap by screws.
[0008] Preferably, a PLC controller is fixedly installed on one side of the chassis, and the drive motor, the non-woven fabric spot welding machine body, the electric telescopic rod and the negative pressure fan are electrically connected to the PLC controller.
[0009] The beneficial effects of this utility model are as follows: When using this high-speed non-woven fabric spot welding machine, the non-woven fabrics to be welded together are placed on the support plate, with the welding positions stacked together. Then, the non-woven fabric spot welding machine body is started, and the lifting frame and spot welding head are moved down by the electric telescopic rod. The high temperature of the spot welding head melts the non-woven fabrics and welds them together. In addition, the drive motor drives the lead screw to rotate, which in turn drives the nut to move. The movement of the nut drives the electric telescopic rod and the lifting frame to move left and right, which in turn drives the spot welding head to move left and right, thereby adjusting the spot welding position of the spot welding head. During welding, the fumes are covered by a transparent fume hood and sucked in by a negative pressure fan, allowing the fumes to enter the purification chamber through a hose. The fumes are absorbed and purified by activated carbon, thereby reducing pollution to the outside air. In summary, this utility model, through a screw-driven transverse mechanism and a liftable spot welding head, can flexibly adjust the spot welding position and accurately complete the non-woven fabric melting welding; at the same time, the smoke removal mechanism composed of a fume hood, activated carbon purification box and negative pressure fan can efficiently collect and purify welding fumes, reduce air pollution, and has the advantages of precise and flexible welding, convenient operation and environmental protection without pollution. Attached Figure Description
[0010] Figure 1 This is a front structural diagram of the present invention.
[0011] Figure 2 This is a schematic diagram of the rear structure of this utility model.
[0012] Figure 3 This is a partial structural schematic diagram of the present invention.
[0013] Legend: 1. Chassis; 2. Support plate; 3. Horizontal movement mechanism; 301. Drive motor; 302. Lead screw; 303. Nut; 304. Slider; 305. Guide rail; 4. Non-woven fabric spot welding machine body; 401. Spot welding head; 5. Electric telescopic rod; 6. Lifting frame; 7. Smoke removal mechanism; 701. Transparent fume hood; 702. Flexible hose; 703. Purification box; 7031. End cap; 704. Negative pressure fan; 8. PLC controller. Detailed Implementation
[0014] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0015] Specific implementation examples are given below.
[0016] See Figures 1-3 In this embodiment of the utility model, the high-speed nonwoven fabric spot welding machine includes a chassis 1, a support plate 2, a transverse mechanism 3, a nonwoven fabric spot welding machine body 4, an electric telescopic rod 5, a lifting frame 6, and a smoke removal mechanism 7. The support plate 2 is fixed inside the chassis 1 and is used to place the nonwoven fabric to be spot welded. The nonwoven fabric spot welding machine body 4 is fixed to the rear side of the chassis 1. The model of the nonwoven fabric spot welding machine body 4 is JP50-jp-50q. A spot welding head 401 is connected to the nonwoven fabric spot welding machine body 4 via a wire. The transverse mechanism 3 is installed at the top inside the chassis 1 and connected to the electric telescopic rod 5. The telescopic end of the electric telescopic rod 5 is fixed to the lifting frame 6. The spot welding head 401 is fixedly installed on the lifting frame 6. The smoke removal mechanism 7 includes a transparent fume hood 701, a flexible hose 702, a purification box 703, and a negative pressure fan 704. The transparent fume hood 701 is fixed to the lower part of the lifting frame 6. On one side, the spot welding head 401 passes through the transparent fume hood 701. The purification box 703 and the negative pressure fan 704 are both fixed to the inner wall of the casing 1. The purification box 703 is filled with activated carbon. The purification box 703 is connected to the transparent fume hood 701 through a flexible hose 702. The negative pressure fan 704 is connected to the purification box 703 through a pipe. The transparent fume hood 701 is made of transparent acrylic so that the spot welding head 401 can be seen through the transparent fume hood 701. The front side of the purification box 703 is detachably connected to the end cap 7031 by screws. The activated carbon in the purification box 703 can be replaced by removing the end cap 7031. In use, the fumes from spot welding are covered by the transparent fume hood 701, and the negative pressure fan 704 draws the fumes into the purification box 703 through the flexible hose 702. The activated carbon absorbs and purifies the fumes, thereby reducing pollution to the outside air.
[0017] The transverse mechanism 3 includes a drive motor 301, a lead screw 302, a nut 303, a slider 304, and a guide rail 305. The drive motor 301 is fixed to the top of the inside of the housing 1. The lead screw 302 is rotatably connected to the top of the inside of the housing 1. The output shaft of the drive motor 301 is connected to the lead screw 302 through a coupling. The nut 303 is installed on the lead screw 302. The slider 304 is fixed to the upper side of the nut 303. The slider 304 is slidably installed on the guide rail 305. The guide rail 305 is fixed to the top of the inside of the housing 1. The electric telescopic rod 5 is fixedly installed on the lower side of the nut 303. In use, the drive motor 301 drives the lead screw 302 to rotate. The rotation of the lead screw 302 drives the nut 303 to move. The movement of the nut 303 drives the electric telescopic rod 5 and the lifting frame 6 to move left and right. The lifting frame 6 drives the spot welding head 401 to move left and right, thereby adjusting the spot welding position of the spot welding head 401.
[0018] A PLC controller 8 is fixedly installed on one side of the chassis 1. The drive motor 301, the non-woven fabric spot welding machine body 4, the electric telescopic rod 5 and the negative pressure fan 704 are electrically connected to the PLC controller 8, and are electrically controlled by the PLC controller 8.
[0019] Working Principle: When using this high-speed nonwoven fabric spot welding machine, the nonwoven fabrics to be welded are placed on the support plate 2, stacked vertically at the desired welding positions. The machine body 4 is then started, and the electric telescopic rod 5 drives the lifting frame 6 and the spot welding head 401 to move downwards. The high temperature of the spot welding head 401 melts and welds the nonwoven fabrics together. Simultaneously, the drive motor 301 drives the lead screw 302 to rotate, which in turn moves the nut 303. This movement of the nut 303 then moves the electric telescopic rod 5 and the lifting frame 6 left and right, which in turn moves the spot welding head 401 left and right, adjusting its welding position. During welding, a transparent fume hood 701 covers the welding fumes, which are then drawn in by a negative pressure fan 704 and enter the purification chamber 703 through the hose 702. Activated carbon absorbs and purifies the fumes, reducing pollution to the outside air.
[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high-speed nonwoven fabric spot welding machine, characterized in that, The system includes a chassis (1), a support plate (2), a transverse mechanism (3), a non-woven fabric spot welding machine body (4), an electric telescopic rod (5), a lifting frame (6), and a smoke removal mechanism (7). The support plate (2) is fixed inside the chassis (1), and the non-woven fabric spot welding machine body (4) is fixed to the rear side of the chassis (1). A spot welding head (401) is connected to the non-woven fabric spot welding machine body (4) via a wire. The transverse mechanism (3) is installed at the top inside the chassis (1) and connected to the electric telescopic rod (5). The telescopic end of the electric telescopic rod (5) is fixed to the lifting frame (6), and the spot welding head (401) is fixedly installed on the lifting frame (6). The smoke removal mechanism (7) includes: a transparent fume hood (701), a flexible hose (702), a purification box (703), and a negative pressure fan (704). The transparent fume hood (701) is fixed to the lower side of the lifting frame (6), and the spot welding head (401) passes through the transparent fume hood (701). The purification box (703) and the negative pressure fan (704) are both fixed to the lifting frame (6). On the inner wall of the casing (1), the purification box (703) is filled with activated carbon. The purification box (703) is connected to the transparent fume hood (701) through a flexible hose (702). The negative pressure fan (704) is connected to the purification box (703) through a pipe. The transverse mechanism (3) includes: a drive motor (301), a lead screw (302), a nut (303), a slider (304), and a guide rail (305). The drive motor (301) is fixed to the top of the inside of the casing (1). The lead screw (302) is rotatably connected to the top of the inside of the housing (1). The output shaft of the drive motor (301) is connected to the lead screw (302) through a coupling. A nut (303) is installed on the lead screw (302). A slider (304) is fixed on the upper side of the nut (303). The slider (304) is slidably installed on the guide rail (305). The guide rail (305) is fixed to the top of the inside of the housing (1). The electric telescopic rod (5) is fixedly installed on the lower side of the nut (303).
2. The high-speed nonwoven fabric spot welding machine according to claim 1, characterized in that, The transparent smoke hood (701) is made of transparent acrylic.
3. The high-speed nonwoven fabric spot welding machine according to claim 1, characterized in that, The front side of the purification box (703) is detachably connected to an end cap (7031) by screws.
4. The high-speed nonwoven fabric spot welding machine according to claim 1, characterized in that, A PLC controller (8) is fixedly installed on one side of the chassis (1). The drive motor (301), the non-woven fabric spot welding machine body (4), the electric telescopic rod (5) and the negative pressure fan (704) are electrically connected to the PLC controller (8).
