Plastic pipe hot melting equipment

Abstract

This utility model relates to a plastic pipe hot-melt device, including a fixing block, a first heating pipe and a second heating pipe respectively fixedly disposed on both sides of the fixing block, the inner diameter of the first heating pipe being adapted to the outer diameter of the second heating pipe, and further including a first fixing component, a second fixing component, and a connecting component. The first fixing component includes two first arc-shaped plates and a first locking unit, the openings of the two first arc-shaped plates being opposite each other and spaced apart, and the first locking unit being connected to the two first arc-shaped plates and used to adjust the gap between the two first arc-shaped plates. The second fixing component includes two second arc-shaped plates and a second locking unit with the same structure as the first fixing component. The fixing block is located between the first fixing component and the second fixing component. This utility model avoids the risk of burns when heating plastic pipes and improves safety.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe connection equipment, specifically a plastic pipe hot melt equipment. Background Technology

[0002] Plastic pipe heat fusion connection is a widely used pipe connection method. It involves heating the pipes and fittings to melt their surfaces, then applying pressure to achieve a permanent connection. Common plastic pipe heat fusion equipment typically includes a fixed block with a first heating pipe and a second heating pipe on either side. The outer diameter of the first heating pipe matches the inner diameter of the second heating pipe, allowing insertion into the ends of the two plastic pipe sections to be connected. However, a significant inconvenience exists in the use of this traditional equipment: operators must manually fit the two pipe sections onto the first and second heating pipes, applying axial force. This operation is not only time-consuming and labor-intensive, but also poses a risk of burns when assembling on the high-temperature heating pipes. Therefore, there is an urgent need for a plastic pipe heat fusion device that improves operational convenience and safety to solve the aforementioned problems in the existing technology. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a plastic pipe hot melt device to solve the problem of burn risk when heating plastic pipes in the existing technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plastic pipe hot-melt device, comprising a fixing block, a first heating pipe and a second heating pipe respectively fixedly disposed on both sides of the fixing block, the inner diameter of the first heating pipe being adapted to the outer diameter of the second heating pipe, and further comprising a first fixing component, a second fixing component, and a connecting component. The first fixing component comprises two first arc-shaped plates and a first locking unit, the openings of the two first arc-shaped plates being opposite each other and spaced apart, the first locking unit being connected to the two first arc-shaped plates and used to adjust the gap between the two first arc-shaped plates; the second fixing component comprises two second arc-shaped plates and a second locking unit having the same structure as the first fixing component; the fixing block is located between the first fixing component and the second fixing component, the axes of the first heating pipe and the second heating pipe being coaxial with the axes of symmetry of the first arc-shaped plate and the axes of symmetry of the second arc-shaped plate; the connecting component is connected to the fixing block, the first fixing component, and the second fixing component, and the connecting component is used to adjust the gap between the first fixing component, the second fixing component, and the fixing block.

[0005] The working principle of this utility model is as follows: This utility model fixes two plastic tubes with an adjustable arc-shaped clamp and uses a connecting component to control the distance between them and the heater to achieve synchronous heat melting.

[0006] Preferably, the connecting assembly includes two connecting blocks, eight connecting rods, two guide rods, and a driving unit. The connecting blocks are symmetrically arranged relative to the fixed block. One end of each connecting rod is hinged to one side of the connecting block, and the other end of each connecting rod is hinged to both ends of the outer arc surface of the first or second arc plate. The connecting rods are arranged symmetrically in a rectangular frame structure relative to the axis of the first heating tube. The two guide rods are fixedly arranged on both sides of the fixed block and are parallel to each other. The ends of the guide rods are slidably connected to the connecting blocks. The driving unit is connected to the two connecting blocks respectively to adjust the interval between the two connecting blocks.

[0007] Preferably, the drive unit includes a first drive shaft, two connecting shafts, two drive sleeves, two second drive shafts, and a power module. The two drive sleeves are rotatably connected to two connecting blocks and are coaxial. The axis of the drive sleeve intersects perpendicularly with the axis of the first heating tube. The middle portions of the two connecting shafts are threadedly engaged with the drive sleeves, and the two connecting shafts rotate in opposite directions. The first drive shaft is parallel to the axis of the connecting shafts and is spaced apart. The middle portion of the first drive shaft is rotatably connected to the fixed block. One end of the second drive shaft is connected to the end of the first drive shaft via a universal coupling, and the other end is connected to the end of the corresponding connecting shaft via a universal coupling. The power module is fixedly mounted on the connecting blocks to drive the drive sleeves to rotate.

[0008] Preferably, the first locking unit includes a first motor, a first screw, four connecting plates, and a first threaded sleeve. The connecting plates are respectively fixedly disposed on both sides of the first arc-shaped plate. The first motor is fixedly connected to the connecting plate on one side of the first arc-shaped plate. The output shaft of the first motor is fixedly provided with the first screw. The first screw is perpendicular to the center line of the first arc-shaped plate. The first threaded sleeve is rotatably connected to the connecting plate opposite the first motor. The rotation axis of the first threaded sleeve is parallel to the axis of the first arc-shaped plate. The first screw and the first threaded sleeve are adapted to each other. The structure of the second locking unit is the same as that of the first locking unit.

[0009] Preferably, the power module includes two third motors and two drive gears. The third motors are fixedly connected to the connecting block, and the output shafts of the drive gears and the third motors are fixed. A coaxial driven gear is provided on the outer periphery of the drive sleeve, and the drive gears and driven gears mesh.

[0010] Preferably, a grip is provided on one side of the fixing block, and two control switches are provided on the grip. One control switch is electrically connected to the first motor and the second motor, and the other control switch is electrically connected to the third motor.

[0011] Preferably, the bottom of the grip is provided with a support plate, and the surface of the support plate is parallel to the axis of the first heating tube.

[0012] Preferably, a sliding sleeve is fixedly provided on the fixed block, the first drive shaft is slidably connected to the sliding sleeve, and a limiting ring is fixedly provided on the first drive shaft at both ends corresponding to the sliding sleeve.

[0013] Preferably, an anti-slip layer is provided on the inner arc surface of the first arc plate and the second arc plate.

[0014] Preferably, the included angle between the first drive shaft and the second drive shaft is less than 25 degrees.

[0015] Compared with existing technologies, the technical solution of this application has the following technical advantages: By replacing manual assembly with the arc-shaped plate structure of the first and second fixing components, operators can fix the pipes without directly contacting the high-temperature heating pipes, effectively avoiding the risk of burns. The quick-adjustment function of the locking unit further shortens assembly time and reduces labor intensity. The coaxial design of the heating pipe centerline and the symmetrical centerline of the arc-shaped plate, combined with the interval adjustment function of the connecting components, enables automatic alignment of the pipes and heating pipes. The combined design of the first and second heating pipes can achieve both heat fusion of pipes of the same diameter and socket connection of pipes of different diameters. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a first schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a second schematic diagram of the overall structure of this utility model.

[0019] In the diagram: 1. Plastic tube; 2. Support plate; 3. First arc-shaped plate; 4. Connecting plate; 5. Guide rod; 6. Connecting shaft; 7. Second transmission shaft; 8. First transmission shaft; 9. Third motor; 10. Connecting block; 11. Connecting rod; 12. First motor; 13. Drive gear; 14. Fixing block; 15. First heating tube; 16. Second heating tube; 17. Handle; 18. Drive sleeve; 19. Extension plate; 20. First screw; 21. First threaded sleeve; 22. Second arc-shaped plate. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] like Figure 1 As shown, a plastic pipe hot-melt device includes a fixing block 14, a first heating pipe 15 and a second heating pipe 16 respectively fixed on both sides of the fixing block 14. The inner diameter of the first heating pipe 15 is adapted to the outer diameter of the second heating pipe 16, so that the two plastic pipes to be welded, whose inner holes and outer shells are adapted, can be heated simultaneously. The device also includes a first fixing component, a second fixing component, and a connecting component. The first fixing component includes two first arc-shaped plates 3 and a first locking unit. The openings of the two first arc-shaped plates 3 are opposite each other and spaced apart. The curvature of the first arc-shaped plates 3 is adapted to the outer diameter of the plastic pipe 1, increasing the contact area for relative fixation. The first locking unit is connected to the two first arc-shaped plates 3 and is used to adjust the gap between the two first arc-shaped plates 3. When the gap between the two first arc-shaped plates 3 decreases, the plastic pipe 1 is fixed. The second fixing component includes two second arc-shaped plates 22 with the same structure as the first fixing component and a second locking unit. In this embodiment, the diameters of the components fixed by the first fixing component and the second fixing component are different, so the curvature of the second arc-shaped plate 22 is different from the curvature of the first arc-shaped plate 3. The fixing block 14 is located between the first fixing component and the second fixing component. The axes of the first heating tube 15 and the second heating tube 16 are coaxial with the axis of symmetry of the first arc plate 3 and the axis of symmetry of the second arc plate 22. The connecting component is connected to the fixing block 14, the first fixing component, and the second fixing component, and is used to adjust the interval between the first fixing component, the second fixing component, and the fixing block 14. The connecting component allows the plastic tube 1, which is fixed to the first fixing component and the second fixing component, to move axially, and the first heating tube 15 and the second heating tube 16 can respectively contact and heat the plastic tube 1. After the plastic tube is heated, the operator moves the plastic tube axially to remove it from the equipment, and then connects the two plastic tubes together.

[0022] like Figure 1As shown, preferably, the connecting assembly includes two connecting blocks 10, eight connecting rods 11, two guide rods 5, and a driving unit. The connecting blocks 10 are symmetrically arranged relative to the fixed block 14, and each connecting block 10 has a long strip structure. The length direction of the connecting block 10 is perpendicular to the axis of the first heating tube 15. One end of each connecting rod 11 is hinged to one side of the connecting block 10, and the other end of each connecting rod 11 is hinged to both ends of the outer arc surface of the first arc plate 3 or the second arc plate 22. The connecting rods 11 are arranged symmetrically in a rectangular frame structure relative to the axis of the first heating tube 15. Two parallel arc-shaped connecting rods 11 are provided between the connecting block 10 and the first arc plate 3. The two guide rods 5 are fixedly arranged on both sides of the fixed block 14 and are parallel to each other. The ends of the guide rods 5 are slidably connected to the connecting blocks 10. The guide rods 5 provide precise guidance and stable support for the movement of the connecting blocks 10, ensuring that they can only move parallel to the axis, thereby ensuring the coaxiality and stability of the entire hot-melt butt welding process. The drive unit is connected to two connecting blocks 10 respectively to adjust the interval between the two connecting blocks 10. When the interval between the two connecting blocks 10 changes, the tilt angle of the connecting rod 11 changes, and the first fixing component and the second fixing component drive the plastic tube 1 to move closer to and away from the first heating tube 15 and the second heating tube 16.

[0023] like Figure 1 As shown, preferably, the drive unit includes a first drive shaft 8, two connecting shafts 6, two drive sleeves 18, two second drive shafts 7, and a power module. The two drive sleeves 18 are rotatably connected to two connecting blocks 10 and are coaxial. The axis of the drive sleeve 18 intersects perpendicularly with the axis of the first heating tube 15. The middle portions of the two connecting shafts 6 are threadedly engaged with the drive sleeves 18, with opposite rotation directions. The drive sleeves 18 have internal threads, and the connecting shafts 6 have external threads; the internal and external threads are compatible. The connecting blocks 10 have rotating holes, and the drive sleeves 18 are compatible with these rotating holes and connected by bearings. The axes of the first drive shaft 8 and the connecting shafts 6 are parallel and spaced apart. The middle portion of the first drive shaft 8 is rotatably connected to the fixed block 14. One end of the second drive shaft 7 is connected to the end of the first drive shaft 8 via a universal coupling, and the other end is connected to the end of the corresponding connecting shaft 6 via a universal coupling. The power modules are fixedly mounted on the connecting blocks 10 to drive the drive sleeves 18 to rotate. In this embodiment, the fixed block 14 has components inside for heating the first heating tube 15 and the second heating tube 16. The first drive shaft 8 is offset to avoid contact with or being too close to the heating components. The drive unit forces the power on both sides to synchronize through a central first drive shaft 8, and then uses a universal coupling to compensate for motion deviations. Finally, the rotational motion is converted into linear motion through the threaded transmission between the drive sleeve 18 and the connecting shaft 6, thereby precisely and synchronously adjusting the interval between the two connecting blocks 10.

[0024] like Figure 1 , 2 As shown, preferably, the first locking unit includes a first motor 12, a first screw 20, four connecting plates 4, and a first threaded sleeve 21. The connecting plates 4 are respectively fixedly disposed on both sides of the first arc-shaped plate 3. The first motor 12 is fixedly connected to the connecting plate 4 on one side of the first arc-shaped plate 3. The output shaft of the first motor 12 is fixedly provided with the first screw 20. The first screw 20 is perpendicular to the center line of the first arc-shaped plate 3. The first threaded sleeve 21 is rotatably connected to the connecting plate 4 opposite to the first motor 12. The rotation axis of the first threaded sleeve 21 is parallel to the axis of the first arc-shaped plate 3. The first screw 20 and the first threaded sleeve 21 are adapted to each other. The structure of the second locking unit is the same as that of the first locking unit. In this embodiment, extension plates 19 are fixedly disposed on the sides of the two opposite connecting plates 4. The two extension plates 19 are close together and hinged. The first motor 12 drives the first screw 20 to rotate, which is converted into a linear motion between the two first arc-shaped plates 3 by threaded engagement with the first threaded sleeve 21 fixed on the opposite connecting plate 4. In this embodiment, the pipe can be quickly clamped or released, and the symmetrical structure ensures the synchronization and stability of the operation.

[0025] like Figure 1 As shown, preferably, the power module includes two third motors 9 and two drive gears 13. The third motors 9 are fixedly connected to the connecting block 10, and the output shafts of the drive gears 13 and third motors 9 are fixed. A coaxial driven gear is provided on the outer periphery of the drive sleeve 18, and the drive gears 13 and driven gears mesh. The two third motors 9 drive the drive gears 13 to rotate, and the power is transmitted to the driven gears coaxially arranged with the drive sleeve 18 through gear meshing, thereby driving the drive sleeve 18 to rotate. This achieves independent and precise rotational control of the two drive sleeves 18, providing reliable power for the synchronous opposite or opposite movement of the connecting block 10, and ensuring the stability and synchronization of the pipe docking process.

[0026] Preferably, a handle 17 is provided on one side of the fixing block 14. Two control switches are provided on the handle 17; one control switch is electrically connected to the first motor 12 and the second motor, and the other control switch is electrically connected to the third motor 9. The switches controlling the first motor 12 and the second motor of the locking unit, and the third motor 9 of the drive unit, are integrated on the handle 17. The operator can trigger the pipe clamping / loosening and the docking feed / retraction actions with a single hand grip. This significantly improves the ergonomics and operational safety of the equipment, and makes the hot-melt docking process more efficient and seamless.

[0027] like Figure 1As shown, preferably, a support plate 2 is provided at the bottom of the grip 17, and the surface of the support plate 2 is parallel to the axis of the first heating tube 15. When the equipment is not in use, the support plate 2 can be placed on the workbench, which improves the safety and stability of the equipment during storage and operation breaks.

[0028] Preferably, a sliding sleeve is fixedly mounted on the fixing block 14, and the first drive shaft 8 is slidably connected to the sliding sleeve. Limiting rings are fixedly mounted on both ends of the first drive shaft 8 corresponding to the sliding sleeve. The cooperation between the sliding sleeve and the limiting rings ensures the normal rotation of the first drive shaft 8 while strictly limiting its sliding stroke, effectively preventing excessive angle of the universal coupling or jamming of the mechanism due to overtravel. An oil groove is provided inside the sliding sleeve.

[0029] Preferably, an anti-slip layer is provided on the inner arc surface of the first arc plate 3 and the second arc plate 22. This prevents slippage when the first fixing component and the second fixing component move the plastic tube 1 axially.

[0030] Preferably, the included angle between the first drive shaft 8 and the second drive shaft 7 is less than 25 degrees. By limiting the transmission angle between the universal joints to within 25 degrees, the power transmission efficiency and synchronization accuracy are significantly improved, while vibration and wear are reduced, thereby ensuring the reliability and stability of the drive unit operation.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A plastic pipe hot-melt device, comprising a fixed block (14), a first heating pipe (15) and a second heating pipe (16) respectively fixedly disposed on both sides of the fixed block (14), wherein the inner diameter of the first heating pipe (15) is adapted to the outer diameter of the second heating pipe (16), characterized in that: It also includes a first fixing component, a second fixing component, and a connecting component. The first fixing component includes two first arc-shaped plates (3) and a first locking unit. The openings of the two first arc-shaped plates (3) are opposite each other and are spaced apart. The first locking unit is connected to the two first arc-shaped plates (3) and is used to adjust the gap between the two first arc-shaped plates (3). The second fixing component includes two second arc-shaped plates (22) with the same structure as the first fixing component and a second locking unit. The fixing block (14) is located between the first fixing component and the second fixing component. The axes of the first heating tube (15) and the second heating tube (16) are coaxial with the axis of symmetry of the first arc-shaped plate (3) and the axis of symmetry of the second arc-shaped plate (22). The connecting component is connected to the fixing block (14), the first fixing component, and the second fixing component. The connecting component is used to adjust the gap between the first fixing component, the second fixing component, and the fixing block (14).

2. The plastic pipe hot-melt equipment according to claim 1, characterized in that: The connecting assembly includes two connecting blocks (10), eight connecting rods (11), two guide rods (5), and a driving unit. The connecting blocks (10) are symmetrically arranged relative to the fixed block (14). One end of each connecting rod (11) is hinged to one side of the connecting block (10), and the other end of each connecting rod (11) is hinged to both ends of the outer arc surface of the first arc plate (3) or the second arc plate (22). The connecting rods (11) are arranged in a rectangular frame structure symmetrically relative to the axis of the first heating tube (15). The two guide rods (5) are fixedly arranged on both sides of the fixed block (14) and are parallel to each other. The ends of the guide rods (5) are slidably connected to the connecting blocks (10). The driving unit is connected to the two connecting blocks (10) respectively to adjust the interval between the two connecting blocks (10).

3. The plastic pipe hot-melt equipment according to claim 2, characterized in that: The drive unit includes a first drive shaft (8), two connecting shafts (6), two drive sleeves (18), two second drive shafts (7), and a power module. The two drive sleeves (18) are rotatably connected to the two connecting blocks (10) and are coaxial. The axis of the drive sleeve (18) is perpendicular to the axis of the first heating tube (15). The middle parts of the two connecting shafts (6) are respectively threaded to the drive sleeves (18). The rotation directions of the two connecting shafts (6) are opposite. The axis of the first drive shaft (8) is parallel to the axis of the connecting shaft (6) and is spaced apart. The middle part of the first drive shaft (8) is rotatably connected to the fixed block (14). One end of the second drive shaft (7) is connected to the end of the first drive shaft (8) through a universal coupling, and the other end is connected to the end of the corresponding connecting shaft (6) through a universal coupling. The power module is fixedly mounted on the connecting block (10) to drive the drive sleeves (18) to rotate.

4. The plastic pipe hot-melt equipment according to claim 3, characterized in that: The first locking unit includes a first motor (12), a first screw (20), four connecting plates (4) and a first threaded sleeve (21). The connecting plates (4) are respectively fixedly arranged on both sides of the first arc plate (3). The first motor (12) and the connecting plate (4) on one side of the first arc plate (3) are fixedly connected. The output shaft of the first motor (12) is fixedly provided with the first screw (20). The first screw (20) is perpendicular to the center line of the first arc plate (3). The first threaded sleeve (21) and the connecting plate (4) opposite to the first motor (12) are rotatably connected. The rotation axis of the first threaded sleeve (21) is parallel to the axis of the first arc plate (3). The first screw (20) and the first threaded sleeve (21) are adapted to each other. The structure of the second locking unit is the same as that of the first locking unit.

5. The plastic pipe hot-melt equipment according to claim 4, characterized in that: The power module includes two third motors (9) and two drive gears (13). The third motors (9) and the connecting block (10) are fixedly connected. The output shafts of the drive gears (13) and the third motors (9) are fixed. The outer periphery of the drive sleeve (18) is provided with coaxial driven gears. The drive gears (13) and driven gears mesh.

6. The plastic pipe hot-melt equipment according to claim 4, characterized in that: A grip (17) is provided on one side of the fixed block (14). Two control switches are provided on the grip (17). One control switch is electrically connected to the first motor (12) and the second motor, and the other control switch is electrically connected to the third motor (9).

7. The plastic pipe hot-melt equipment according to claim 6, characterized in that: The bottom of the grip (17) is provided with a support plate (2), and the surface of the support plate (2) is parallel to the axis of the first heating tube (15).

8. The plastic pipe hot-melt equipment according to claim 3, characterized in that: A sliding sleeve is fixedly provided on the fixed block (14), and the first transmission shaft (8) is slidably connected to the sliding sleeve. Limiting rings are fixedly provided on both ends of the first transmission shaft (8) corresponding to the sliding sleeve.

9. A plastic pipe hot-melt equipment according to claim 2, characterized in that: An anti-slip layer is provided on the inner arc surface of the first arc plate (3) and the second arc plate (22).

10. A plastic pipe hot-melt equipment according to claim 3, characterized in that: The included angle between the first drive shaft (8) and the second drive shaft (7) is less than 25 degrees.

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