Automatic plastic pipe connecting device

Abstract

The application discloses a kind of plastic pipe automatic connecting device, it is related to engineering machinery field, including vehicle-mounted body, movable clamp jaw, hot melt connector and fixed clamp jaw, a pair of side compartments are equipped on the vehicle-mounted body, movable clamp jaw and fixed clamp jaw are equipped between two side compartments, and the hot melt connector is located between movable clamp jaw and fixed clamp jaw;By cutting a short tube (for example 10cm) as a special connecting pipe, by fine hole air suction to hold the short tube, prevent deformation from gravity, and by fine hole exhaust gas to accelerate cooling when connecting, reduce the deformation amount of two pipe extrusion force, simultaneously by movable clamp jaw and fixed clamp jaw control the port of two plastic pipes to be together, both quickly and accurately.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery, and more specifically to an automatic connection device for plastic pipes. Background Technology

[0002] In engineering piping, sections of plastic pipe are generally used because engineering plastic pipes are relatively thick and long, and only by making them into sections can they be convenient for production, transportation, and storage. However, in engineering piping, it is sometimes necessary to connect multiple plastic pipes into a single long pipe, so on-site connection is required.

[0003] When connecting on-site, the hot-melt connection method is generally used. A certain heating device is used to heat the ends of the plastic pipes to be connected to a semi-molten state. Then, the workers quickly and accurately press the ends of the two plastic pipes together, and they will be connected after cooling.

[0004] However, there are often two unavoidable defects. First, when the end of the plastic tube is heated to a semi-molten state, it is easily deformed by gravity and the squeezing pressure of the two tubes. In particular, when the deformation of the two plastic tubes is inconsistent, gaps are likely to appear when they are connected.

[0005] Secondly, it is necessary to quickly and accurately connect the ends of the two plastic tubes together, because they need to be connected before they cool down so that they will not come apart after cooling. However, if the worker is not careful, they may make a mistake and cause the connection to fail. If the connection fails, it needs to be re-heat-fused, and the quality of the plastic tubes deteriorates after repeated heat fusion. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic plastic tube connection device. A short tube (e.g., 10cm) is cut as a special connection fitting. Air is drawn through a fine hole to hold the short tube in place, preventing deformation due to gravity. During connection, cold air is discharged through the fine hole to accelerate cooling and reduce deformation caused by the pressure between the two tubes. At the same time, movable and fixed clamps control the ends of the two plastic tubes to be joined together quickly and accurately.

[0007] An automatic plastic pipe connection device includes a vehicle-mounted body, movable grippers, a heat fusion connector, and fixed grippers. The vehicle-mounted body is provided with a pair of side compartments, the movable grippers and fixed grippers are located between the two side compartments, and the heat fusion connector is located between the movable grippers and the fixed grippers.

[0008] The hot melt connector includes a lower component, an upper component, a front heating plate, and a rear heating plate. The lower component is fixedly connected to the vehicle body. The upper component is slidably connected to the lower component through a connecting post. The front heating plate and the rear heating plate are kinetically connected to the upper component. The lower component is provided with heating plate slots corresponding to the front heating plate and the rear heating plate.

[0009] The movable gripper is fixedly connected to the connecting plate via a connecting bracket. The connecting plate is slidably connected inside the inner sliding chamber. The inner sliding chamber is slidably connected inside the side chamber. The inner sliding chamber is connected to the output shaft of the movable telescopic motor. The movable telescopic motor is fixedly connected inside the side chamber.

[0010] Preferably, the upper component is provided with a connecting column groove that mates with the connecting column, and the bottom of the upper component is provided with a number of finely arranged dividing holes. All the dividing holes are located between the front heating plate and the rear heating plate, and the dividing holes are connected to the main air passage in the upper component through the air distribution passage. The main air passage is connected to the connecting column groove on the left side, and the connecting column on the left side is provided with an air passage channel. The air passage channel is connected to a three-way valve, and the other two ports of the three-way valve are connected to an exhaust fan and a cooler, respectively.

[0011] Preferably, the tops of the front heating plate and the rear heating plate are fixedly connected to the lower end of the top plate, and a cable connector is fixedly connected to the top of the top plate. The cable connector is connected to an external power source through a power cord, and the cable connector is connected to the front heating plate and the rear heating plate.

[0012] Preferably, a handle is fixedly connected to the top of the top plate, and an electromagnet is provided at the bottom of the top plate. A metal block is provided at the top of the upper component corresponding to the position of the electromagnet, and the electromagnet is connected to a cable connector through a connecting wire.

[0013] Preferably, the bottom of the handle is also provided with a button, which is used to control the power supply of the cable connector, and a take-up reel shaft for winding the power cord is rotatably connected inside the upper component.

[0014] Preferably, a gripper telescopic motor is fixedly connected inside the inner sliding chamber. The output shaft of the gripper telescopic motor is connected to the slide rod seat. The slide rod seat is slidably connected to the inner wall of the inner sliding chamber. A slide rod is fixedly connected to the slide rod seat. The front end of the slide rod is rotatably connected to the end of a rotating rod. The head end of the rotating rod is slidably connected to a connecting plate. The middle part of the rotating rod is rotatably connected inside the inner sliding chamber via a rotating shaft.

[0015] Preferably, the end of the rotating rod is provided with a strip-shaped hole, the front end of the sliding rod is rotatably connected in the strip-shaped hole, the inner side of the side chamber is also provided with a movable groove, and the connecting bracket is located in the movable groove.

[0016] The advantages of this invention are as follows: by cutting a short tube, for example, 10cm, as a special connecting pipe, the short tube is sucked in by air through the fine holes to prevent deformation caused by gravity. During connection, cold air is discharged through the fine holes to accelerate cooling and reduce the deformation caused by the pressure between the two tubes. At the same time, the movable and fixed clamps control the ends of the two plastic tubes to be joined together, which is both quick and accurate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0018] Figure 2 This is a top view of the device of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the thermoelectric connector in the device of the present invention;

[0020] Figure 4 This is a schematic diagram of the fine-diameter orifice in the device of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the thermofusion connector in the device of the present invention;

[0022] Figure 6 This is a schematic diagram of the drive mechanism for the movable gripper in the device of the present invention;

[0023] Among them, 01. Vehicle body, 02. Side compartment, 03. Roller, 04. Wheel, 05. Movable gripper, 06. Hot melt connector, 07. Fixed gripper, 1. Lower component, 2. Upper component, 3. Connecting column, 4. Front heating plate, 5. Rear heating plate, 6. Top plate, 7. Power cord, 8. Cable connector, 9. Handle, 10. Heating plate groove, 11. Dividing hole, 12. Connecting column slide groove, 13. Air passage, 14. Main air supply. 15. Gas distribution line, 16. Three-way valve, 17. Exhaust fan, 18. Air cooler, 19. Reel shaft, 20. Electromagnet, 21. Metal block, 22. Connecting wire, 23. Button, 24. Inner sliding chamber, 25. Connecting bracket, 26. Connecting plate, 27. Rotating rod, 28. Rotating shaft, 29. Slide rod, 30. Slide rod seat, 31. Gripper telescopic motor, 32. Strip hole, 33. Movable telescopic motor, 34. Movable slot. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] like Figures 1 to 6 As shown, the present invention includes a vehicle-mounted body 1, a movable gripper 05, a hot melt connector 06, and a fixed gripper 07. The vehicle-mounted body 1 is provided with a pair of side compartments 02. The movable gripper 05 and the fixed gripper 07 are located between the two side compartments 02. The hot melt connector 06 is located between the movable gripper 05 and the fixed gripper 07.

[0026] The hot-melt connector 06 is suitable for hot-melt connection of two pipes, which is convenient for connection. The hot-melt connector 06 includes a lower part 1, an upper part 2, a front heating plate 4 and a rear heating plate 5. The lower part 1 is fixedly connected to the vehicle body 1. The upper part 2 is slidably connected to the lower part 1 through the connecting post 3. The front heating plate 4 and the rear heating plate 5 are tractively connected to the upper part 2. The lower part 1 is provided with heating plate grooves 10 corresponding to the front heating plate 4 and the rear heating plate 5.

[0027] The key point is that the upper component 2 is provided with a connecting column groove 12 that mates with the connecting column 3. The bottom of the upper component 2 is provided with several finely arranged dividing holes 11. All the dividing holes 11 are located between the front heating plate 4 and the rear heating plate 5, and all the dividing holes 11 are connected to the main air passage 14 in the upper component 2. The main air passage 14 is connected to the connecting column groove 12 on the left side, and the connecting column 3 on the left side is provided with an air passage 13. The air passage 13 is connected to a three-way valve 16, and the other two ports of the three-way valve 16 are connected to the exhaust fan 17 and the air cooler 18, respectively.

[0028] The advantage is that the fine holes 11 are connected to the exhaust fan 17 and the cooler 18 respectively. The air can be drawn through the fine holes 11 to hold the short pipe in place, preventing deformation due to gravity. When connecting, the cold air can be discharged through the fine holes to accelerate cooling and reduce the deformation caused by the pressure of the two pipes.

[0029] Another key point is that the tops of both the front heating plate 4 and the rear heating plate 5 are fixedly connected to the lower end of the top plate 6. A cable connector 8 is fixedly connected to the top of the top plate 6, and the cable connector 8 is connected to an external power source via a power cord 7. The cable connector 8 is also connected to both the front heating plate 4 and the rear heating plate 5. A handle 9 is also fixedly connected to the top of the top plate 6, and an electromagnet 20 is located at the bottom of the top plate 6. A metal block 21 is located on the top of the upper component 2 at a position corresponding to the electromagnet 20. The electromagnet 20 is connected to the cable connector 8 via a connecting wire 22.

[0030] The bottom of the handle 9 is also provided with a button 23, which is used to control the power supply of the cable connector 8. The upper part 2 is also rotatably connected to a take-up reel shaft 19 for winding the power cord 7.

[0031] The power supply to the front heating plate 4 and the rear heating plate 5 can be controlled by button 23, and the power supply to the electromagnet 20 can also be controlled by button 23, thereby enabling the front heating plate 4 and the rear heating plate 5 to slide relative to the upper component 2.

[0032] Correspondingly, the lower component 1 is provided with a heating plate groove 10 corresponding to the front heating plate 4 and the rear heating plate 5. The heating plate groove 10 is to ensure that the positions of the front heating plate 4 and the rear heating plate 5 are determined and more stable.

[0033] Another key point is that the movable gripper 05 and the fixed gripper 07 work together to control the ends of the two plastic tubes to be joined together, ensuring speed and accuracy. The movable gripper 05 is fixedly connected to the connecting plate 26 via the connecting bracket 25. The connecting plate 26 is slidably connected inside the inner sliding chamber 24. The inner sliding chamber 24 is slidably connected inside the side chamber 02, and the inner sliding chamber 24 is connected to the output shaft of the movable telescopic motor 33. The movable telescopic motor 33 is fixedly connected inside the side chamber 02 and is used to control the back-and-forth movement of the movable gripper 05.

[0034] The clamping principle of the movable gripper 05 and the fixed gripper 07 is the same. The movable gripper 05 has a gripper telescopic motor 31 fixedly connected in the inner sliding chamber 24. The output shaft of the gripper telescopic motor 31 is connected to the slide rod seat 30. The slide rod seat 30 is slidably connected to the inner wall of the inner sliding chamber 24. A slide rod 29 is fixedly connected to the slide rod seat 30. The front end of the slide rod 29 is rotatably connected to the end of the rotating rod 27. The head end of the rotating rod 27 is slidably connected to the connecting plate 26. The middle part of the rotating rod 27 is rotatably connected to the inner sliding chamber 24 through the rotating shaft 28. The end of the rotating rod 27 is provided with a strip hole 32. The front end of the slide rod 29 is rotatably connected to the strip hole 32. The inner side of the side chamber 02 is also provided with a movable groove 34. The connecting bracket 25 is located in the movable groove 34.

[0035] The clamping structure of the fixed gripper 07 is basically the same as that of the movable gripper 05. The difference is that the inner sliding compartment 24 in the clamping structure of the fixed gripper 07 is fixed inside the side compartment 02 and does not have a movable telescopic motor 33.

[0036] Detailed implementation methods and principles:

[0037] When using the device of the present invention, first start the gripper telescopic motor 31, and clamp the two plastic tubes to be connected by the movable gripper 05 and the fixed gripper 07, and make the two plastic tubes fit tightly against the heat fusion connector 06, and then perform heating connection.

[0038] When making a heat connection, it is not necessary to heat the ends of the plastic tube to a semi-melted state; it is only necessary to heat it to a level that facilitates connection. Alternatively, the fittings used for connection need to be heated to a semi-melted state. The fittings can be made from a plastic tube of the same specification that has been cut off.

[0039] The specific process is as follows: lower the upper part 2 so that the front heating plate 4 and the rear heating plate 5 can be inserted into the heating plate slot 10. The front heating plate 4 and the rear heating plate 5 have a higher inner temperature and a lower outer temperature. The inner side of the front heating plate 4 and the rear heating plate 5 heats the connecting pipe, and the outer side heats the ports of the two plastic pipes respectively. In this way, the connecting pipe can be heated to a semi-melted state, while the ports of the plastic pipes are only heated to a level that is convenient for connection.

[0040] At the same time, the three-way valve 16 connects the exhaust fan 1 and the fine hole 15, so that it sucks the connecting pipe and prevents it from deforming due to gravity. Since the fine hole 15 has a very small diameter, coupled with the surface tension of the plastic, it will not cut the plastic and suck it into the hole.

[0041] After heating is complete, the top plate 6 is pulled up by the handle 9, and the upper part 2 is pulled up, so that the front heating plate 4 and the rear heating plate 5 are pulled up. Then, the movable gripper 05 is controlled by the movable telescopic motor 33 to move one of the plastic tubes forward, and finally the two plastic tubes are connected to the connecting pipe fitting. After the connection is aligned, the three-way valve 16 is connected, and then the cold air fan 18 and the fine hole 15 are connected. Cold air is discharged through the fine hole 15 to accelerate cooling and reduce the deformation caused by the extrusion pressure.

[0042] Based on the above, the present invention uses a short tube, for example, 10cm, as a special connecting fitting. The short tube is held in place by suction through a fine hole to prevent deformation due to gravity. During connection, cold air is discharged through the fine hole to accelerate cooling and reduce the deformation caused by the pressure between the two tubes. At the same time, movable and fixed clamps control the ends of the two plastic tubes to be joined together quickly and accurately.

[0043] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An automatic connection device for plastic pipes, characterized in that, The device includes a vehicle-mounted body (01), movable grippers (05), a thermoelectric connector (06), and fixed grippers (07). The vehicle-mounted body (01) is provided with a pair of side compartments (02). The movable grippers (05) and fixed grippers (07) are located between the two side compartments (02). The thermoelectric connector (06) is located between the movable grippers (05) and the fixed grippers (07). The hot melt connector (06) includes a lower component (1), an upper component (2), a front heating plate (4), and a rear heating plate (5). The lower component (1) is fixedly connected to the vehicle body (01). The upper component (2) is slidably connected to the lower component (1) through a connecting post (3). The front heating plate (4) and the rear heating plate (5) are drivenly connected to the upper component (2). The lower component (1) is provided with heating plate slots (10) corresponding to the front heating plate (4) and the rear heating plate (5). The movable gripper (05) is fixedly connected to the connecting plate (26) via the connecting bracket (25). The connecting plate (26) is slidably connected in the inner sliding chamber (24). The inner sliding chamber (24) is slidably connected in the side chamber (02). The inner sliding chamber (24) is connected to the output shaft of the movable telescopic motor (33). The movable telescopic motor (33) is fixedly connected in the side chamber (02). The upper component (2) is provided with a connecting column groove (12) that cooperates with the connecting column (3). The bottom of the upper component (2) is provided with several finely arranged dividing holes (11). All the dividing holes (11) are located between the front heating plate (4) and the rear heating plate (5). The dividing holes (11) are connected to the main air passage (14) in the upper component (2) through the air distribution passage (15). The main air passage (14) is connected to the connecting column groove (12) on the left side. The connecting column (3) on the left side is provided with an air passage (13). The air passage (13) is connected to the three-way valve (16). The other two ports of the three-way valve (16) are connected to the exhaust fan (17) and the air cooler (18) respectively.

2. The automatic plastic pipe connection device according to claim 1, characterized in that: The tops of the front heating plate (4) and the rear heating plate (5) are fixedly connected to the lower end of the top plate (6). The top of the top plate (6) is fixedly connected to a cable connector (8). The cable connector (8) is connected to an external power source through a power cord (7), and the cable connector (8) is connected to the front heating plate (4) and the rear heating plate (5).

3. The automatic plastic pipe connection device according to claim 2, characterized in that: The top of the top plate (6) is also fixedly connected to a handle (9), and the bottom of the top plate (6) is provided with an electromagnet (20). The top of the upper component (2) is provided with a metal block (21) corresponding to the position of the electromagnet (20). The electromagnet (20) is connected to the cable connector (8) through a connecting line (22).

4. The automatic plastic pipe connection device according to claim 3, characterized in that: The bottom of the handle (9) is also provided with a button (23), which is used to control the power supply of the cable connector (8). The upper part (2) is also rotatably connected with a take-up reel (19) for winding the power cord (7).

5. The automatic plastic pipe connection device according to claim 1, characterized in that: A gripper telescopic motor (31) is fixedly connected inside the inner sliding chamber (24). The output shaft of the gripper telescopic motor (31) is connected to the slide rod seat (30). The slide rod seat (30) is slidably connected to the inner wall of the inner sliding chamber (24). A slide rod (29) is fixedly connected to the slide rod seat (30). The front end of the slide rod (29) is rotatably connected to the end of the rotating rod (27). The head end of the rotating rod (27) is slidably connected to the connecting plate (26). The middle part of the rotating rod (27) is rotatably connected to the inner sliding chamber (24) through the rotating shaft (28).

6. The automatic plastic pipe connection device according to claim 5, characterized in that: The end of the rotating rod (27) is provided with a strip hole (32), the front end of the sliding rod (29) is rotatably connected in the strip hole (32), the inner side of the side chamber (02) is also provided with a movable groove (34), and the connecting bracket (25) is located in the movable groove (34).

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