Plastic pipe horizontal hot melt welding machine

Abstract

The application relates to a horizontal hot-melt welding machine for plastic pipe fittings, which comprises a machine table and a hot-melt welding assembly and two plastic pipe positioning assemblies arranged on the machine table, the hot-melt welding assembly is provided with a hot-melt clamp, and the two plastic pipe positioning assemblies are arranged on the two sides of the hot-melt clamp; the plastic pipe positioning assembly comprises a driving piece one, a fixing frame, a receiving table, an alignment adjusting piece and a plug-in piece; the receiving table is slidably connected to the fixing frame in the X-axis direction and is provided with a plurality of placing grooves in the Y-axis direction; an operator places two plastic pipes with different diameters in the placing grooves of the two receiving tables, then drives the receiving tables to reset, adjusts the end portions of the plastic pipes to be flush through the alignment adjusting piece, then drives the plastic pipes on the two receiving tables to be mutually plugged in through the plug-in piece, and finally, the hot-melt clamp is used for batch welding of the multiple plugged-in plastic pipes, thereby effectively solving the problems of one-by-one butt joint and complicated position adjustment in traditional manual operation.

Description

Technical Field

[0001] This invention relates to the field of hot melt welding machines, and in particular to a horizontal hot melt welding machine for plastic pipe fittings. Background Technology

[0002] Plastic pipes are widely used in various fields, and in practical use, they often need to be connected due to insufficient length.

[0003] Traditional plastic pipe splicing methods typically involve manual operation. The ends of two plastic pipes with different diameters are aligned, the larger diameter pipe is placed over the smaller diameter pipe, and then the joint is heated on a hot melt welding machine to fuse the two pipes together, thus achieving the connection.

[0004] The above steps usually require the operator to complete the splicing of two plastic tubes. If multiple spliced ​​plastic tubes need to be hot-melted and welded at one time, the position of the connection of multiple plastic tubes on the hot-melt welding machine needs to be constantly adjusted. Not only are the operation steps cumbersome, time-consuming and labor-intensive, but the welding position of different plastic tubes is also inconsistent, which may result in welding deviations and insufficient quality stability of the plastic tubes after batch welding. Summary of the Invention

[0005] To facilitate the welding operation of plastic pipes, this application provides a horizontal hot melt welding machine for plastic pipe fittings.

[0006] The horizontal hot melt welding machine for plastic pipe fittings provided in this application adopts the following technical solution:

[0007] A horizontal hot-melt welding machine for plastic pipe fittings includes a machine base and a hot-melt welding assembly and two plastic pipe positioning assemblies mounted on the machine base. The hot-melt welding assembly has a hot-melt clamp that moves along the Y-axis. The two plastic pipe positioning assemblies are respectively disposed on both sides of the hot-melt clamp. Each plastic pipe positioning assembly includes a drive component, a fixed frame, a receiving platform, an alignment adjustment component, and a connector. The fixed frame is fixedly mounted on the machine base. The receiving platform is slidably connected to the fixed frame along the X-axis. The drive component drives the receiving platform to slide. The receiving platform has several placement slots along the Y-axis for accommodating plastic pipes. The placement slots extend through the receiving platform along the X-axis. The alignment adjustment component is used to adjust the position of several plastic pipes on the receiving platform and keep the ends of the several plastic pipes close to the hot-melt clamp flush. The connector is used to drive the aligned plastic pipes on the two receiving platforms to insert into each other.

[0008] By adopting the above technical solution, the operator first drives the receiving platform to move away from the hot melt clamp to the loading position, places two different diameter plastic tubes into the placement slots of the two receiving platforms respectively, and then drives the receiving platform to reset. At this time, the alignment adjustment component can adjust the position of several plastic tubes on the receiving platform, so that several plastic tubes move closer to the hot melt clamp and keep their ends flush. The insertion component drives the aligned plastic tubes on the two receiving platforms to insert into each other. Finally, the hot melt clamp performs batch welding on multiple inserted plastic tubes, effectively solving the problem of needing to connect them one by one and the cumbersome position adjustment in traditional manual operation.

[0009] Preferably, the alignment adjustment component includes a second driving component, a lower abutting wheel, a bracket, a third driving component, a pressure block, an alignment plate, a fourth driving component, a detection driving component, several moving frames, several springs, and several upper abutting wheels. The lower abutting wheel is rotatably mounted on the receiving platform, and the top of the lower abutting wheel protrudes from the bottom wall of the placement groove. The second driving component is used to drive the lower abutting wheel to rotate.

[0010] The bracket is detachably fixed on the receiving platform. The bracket is inclined from bottom to top, gradually approaching the hot melt clamp. The pressure block slides on the bracket along the inclined direction. The driving component drives the pressure block to slide. Several movable frames correspond to several placement slots. The movable frames slide in the pressure block along the inclined sliding direction. Several springs are used to drive several movable frames to move down. Several upper abutment wheels are rotatably connected to several movable frames.

[0011] The alignment plates in the two alignment adjustment components are the same alignment plate. The alignment plate slides vertically on the machine table. The driving component drives the alignment plate to slide. After the hot melt fixture exits the processing position, the alignment plate moves to the processing position of the hot melt fixture. The two sides of the alignment plate are respectively used for the ends of several plastic tubes on the two receiving tables to abut.

[0012] When the receiving platform moves away from the hot melt clamp to the loading position, the pressure block moves up to the upper abutment wheel away from the plastic tube; when the receiving platform moves towards the hot melt clamp, the pressure block moves down to the upper abutment wheel and the lower abutment wheel together clamp the plastic tube; when the end of the plastic tube moves to abut against the alignment plate, the detection drive drives the moving frame to move up, so that the corresponding upper abutment wheel disengages from the plastic tube.

[0013] By adopting the above technical solution, the alignment plate can accurately occupy its position after the hot melt clamp is removed, providing a uniform abutment benchmark for the plastic tubes on both sides. Drive component one drives the receiving platform to move away from the hot melt clamp to the loading position. At this time, the pressure block moves diagonally upwards to the top of the support, and the upper abutment wheel is away from the plastic tube. The loading position facilitates the operator's placement of the plastic tube; only a portion of the plastic tube needs to be below the support. Then, drive component one drives the receiving platform to move back to the hot melt clamp side. During the resetting process of the receiving platform, drive component three drives the pressure block to move diagonally downwards to the bottom of the support. At this time, the upper abutment wheel moves directly above the lower abutment wheel. Under the action of the spring, the upper and lower abutment wheels clamp together. The plastic tube is tightened; then the second drive unit drives the lower abutment wheel to rotate. The cooperation between the lower and upper abutment wheels can transport the plastic tube towards the alignment plate until the end of the plastic tube abuts against the alignment plate. At this time, the detection drive unit can sense in real time whether the plastic tube is in place. Once in place, it promptly drives the moving frame to move upward, causing the corresponding upper abutment wheel to disengage from the plastic tube. At this time, the lower abutment wheel can only slide and rub against the plastic tube, and cannot force the plastic tube to move forward. This ensures the alignment accuracy and avoids damage to the end of the plastic tube caused by excessive transmission, laying the foundation for subsequent precise welding.

[0014] Preferably, the second driving component includes two racks and two gears. The two ends of the lower abutment wheel extend out of the receiving platform. The two gears are coaxially fixed at both ends of the lower abutment wheel. The two racks are fixedly mounted on corresponding fixing frames. The racks are located below the gears, and the gears are meshed with the racks.

[0015] By adopting the above technical solution, the gears at both ends of the lower abutment wheel mesh with the rack on the fixed frame. When the driving component drives the receiving platform to slide along the X-axis, the gears roll along the rack as the receiving platform moves, thereby driving the lower abutment wheel to rotate synchronously. The sliding power of the receiving platform is converted into the rotational power of the lower abutment wheel, so that the plastic tube can move smoothly with the rotation of the lower abutment wheel during the movement of the receiving platform. At the same time, it eliminates the need for a separate motor or cylinder to drive the lower abutment wheel, reduces the number of parts in the equipment, lowers the manufacturing cost and maintenance difficulty of the equipment, and improves the stability of equipment operation.

[0016] Preferably, the driving component three includes a guide groove and a first block. The guide groove is formed on the fixed frame, and the first block is fixed on the pressure block. The first block slides in the guide groove. The guide groove includes a first horizontal section, an inclined section and a second horizontal section in sequence from the side near the alignment plate to the side away from the alignment plate. The first horizontal section is lower than the second horizontal section, and the connection between the inclined section and the first horizontal section and the second horizontal section is smooth.

[0017] By adopting the above technical solution, the three-section design of the guide groove slides in conjunction with the first block on the pressure block. When the receiving platform moves the pressure block, the first block slides along the guide groove trajectory, thereby driving the pressure block to rise and fall along the inclined direction of the support. When the receiving platform moves to the loading position, the first block is in the second horizontal section, at which point the pressure block is in a high position, and the upper abutment wheel is away from the placement groove, facilitating the insertion of the plastic tube. When the receiving platform moves towards the hot melt clamp, the first block slides along the inclined section, and the pressure block gradually moves down, with the upper abutment wheel approaching the plastic tube. When the first block enters the first horizontal section, the pressure block is in a low position, and the upper and lower abutment wheels clamp the plastic tube together. Then, the receiving platform continues to move towards the hot melt clamp, and the upper and lower abutment wheels drive the plastic tube forward until it abuts against the alignment plate. The entire process requires no manual control or additional power drive, relying entirely on the movement of the receiving platform to achieve automatic lifting and lowering of the pressure block, thus improving the automation level and coordination of the equipment operation.

[0018] Preferably, the detection drive includes a controller, several pressure sensors, and several electromagnets. The pressure sensors are arranged one-to-one with the plastic tubes, and the pressure sensors are mounted on an alignment plate facing the corresponding plastic tube. The electromagnets are arranged one-to-one with the movable frames, and the electromagnets are located inside the pressure block and above the corresponding movable frames. The movable frames are made of magnetic material. When the controller detects that the detection signal output by the pressure sensor meets the preset conditions, it drives the corresponding electromagnet to be energized to attract the movable frame.

[0019] By adopting the above technical solution, pressure sensors are paired with plastic tubes one-to-one. When the end of the plastic tube abuts against the alignment plate, the pressure sensor detects a pressure signal and transmits it to the controller. The controller determines whether the signal meets the preset conditions, i.e., whether the plastic tube is fully abutted. When the plastic tube is detected to be in place, the controller drives the corresponding electromagnet to be energized, using magnetic attraction to move the moving frame upward, causing the upper abutting wheel to disengage from the plastic tube, thus avoiding continuous clamping and forced transmission of the plastic tube.

[0020] Preferably, the connector includes a driving component five, a first clamp and a second clamp. The first clamp and the second clamp are located between two receiving platforms. The first clamp and the second clamp correspond to two plastic tube positioning components and are used to clamp the ends of several plastic tubes aligned on the corresponding receiving platforms. The first clamp is fixedly installed on a corresponding fixed frame, and the second clamp slides on another fixed frame along the X-axis direction. The driving component five drives the second clamp to slide.

[0021] By adopting the above technical solution, automatic and precise splicing of two plastic tubes is achieved, replacing the traditional manual splicing operation and improving splicing efficiency and accuracy. The first and second clamps correspond to the receiving platforms on both sides, simultaneously clamping the ends of multiple aligned plastic tubes to ensure that the plastic tubes do not shift during splicing. The first clamp is fixedly set, providing a stable reference end for splicing, while the second clamp slides along the X-axis, moving one side of the plastic tube to the other under the drive of the fifth drive component, achieving precise splicing of the two plastic tubes. This design eliminates the need for manual splicing of plastic tubes one by one, making it particularly suitable for batch processing scenarios. It significantly reduces manual operation time and labor intensity. Simultaneously, the clamping action prevents problems such as skewing or misalignment of the plastic tubes during splicing, ensuring the consistency of the splicing length and providing strong assurance for the quality of subsequent hot-melt welding.

[0022] Preferably, the first clamp includes a first cylinder and two first jaws. The first cylinder and one of the first jaws are fixedly mounted on a fixed frame. The piston rod of the first cylinder is downwardly positioned and fixed on the other first jaw. The two first jaws are positioned opposite each other. The second clamp includes a clamping platform, a second cylinder, and two second jaws. The clamping platform slides along the X-axis on the corresponding fixed frame. The driving component drives the clamping platform to slide. The second cylinder and one of the second jaws are fixedly mounted on the clamping platform. The piston rod of the second cylinder is downwardly positioned and fixed on the other second jaw. Both the first and second jaws have arc grooves that are interference-fitted with the diameter of the corresponding plastic tube.

[0023] By adopting the above technical solution, both the first and second clamps use cylinders to drive the opening and closing of the grippers. The cylinder drive provides rapid response and stable clamping force, meeting the high-efficiency requirements of batch processing. The arc grooves on the grippers are interference-fitted with the diameter of the plastic tube, conforming to the outer contour of the plastic tube, which increases the contact area between the grippers and the plastic tube and improves the clamping firmness.

[0024] Preferably, the driving component four includes a third cylinder, which is fixedly mounted on the machine base, and the piston rod of the third cylinder is vertically upward and fixed on the alignment plate.

[0025] By adopting the above technical solution, a stable and precise lifting and lowering drive method is provided for the alignment plate.

[0026] The main technical effects of this invention are reflected in the following aspects:

[0027] 1. The alignment plate of this invention can accurately occupy its position after the hot melt clamp is withdrawn, providing a uniform abutment benchmark for the plastic tubes on both sides. Then, the operator first drives the receiving platform to move away from the hot melt clamp to the loading position, and places two plastic tubes of different diameters into the placement slots of the two receiving platforms respectively. Then, the receiving platform is driven to reset. At this time, the alignment adjustment component can adjust the position of several plastic tubes on the receiving platform so that the ends of several plastic tubes abut against the alignment plate and remain flush. Then, the alignment plate is moved away, and the insertion component drives the aligned plastic tubes on the two receiving platforms to insert into each other. Finally, the hot melt clamp performs batch welding on multiple inserted plastic tubes, effectively solving the problem of needing to connect them one by one and the cumbersome position adjustment in traditional manual operation.

[0028] 2. In this invention, the gears at both ends of the lower abutment wheel mesh with the rack on the fixed frame. When the driving component drives the receiving platform to slide along the X-axis, the gears roll along the rack as the receiving platform moves, thereby driving the lower abutment wheel to rotate synchronously. The sliding power of the receiving platform is converted into the rotational power of the lower abutment wheel, so that the plastic tube can move smoothly with the rotation of the lower abutment wheel during the movement of the receiving platform. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 2 This is a top view of an embodiment of this application.

[0031] Figure 3 This is a schematic diagram of the structure of the hot melt welding assembly according to an embodiment of this application.

[0032] Figure 4 This is a schematic diagram of the structure of several plastic tubes abutting against the alignment plate according to an embodiment of this application.

[0033] Figure 5 This is a schematic diagram of the structure of the connector in the embodiment of this application after several plastic tubes of different diameters are connected.

[0034] Figure 6 This is a schematic diagram of the structure of the insertion stage moving to the loading position according to an embodiment of this application.

[0035] Figure 7 This is a structural diagram of the bracket, the upper abutment wheel and other structures inside the pressure block in the embodiments of this application.

[0036] Figure 8 It is along Figure 6 A cross-sectional view along line AA in the middle.

[0037] Explanation of reference numerals in the attached drawings: 1. Machine base; 11. Industrial camera; 12. Display screen; 13. Plastic tube; 2. Hot melt welding assembly; 21. Fourth cylinder; 22. Hot melt clamp; 221. Pneumatic gripper; 3. Plastic tube positioning assembly; 31. Fixing frame; 32. Receiving platform; 321. Placement groove; 33. Drive component one; 34. Motor; 35. Lead screw; 36. Slider; 37. Slide rail; 4. Alignment adjustment component; 41. Lower abutment wheel; 42. Bracket; 43. Pressure block; 431. Inner groove; 44. Alignment plate; 45. 46. ​​Moving frame; 47. Spring; 51. Upper abutment wheel; 52. Rack; 53. Gear; 64. First block; 65. Guide groove; 66. First horizontal section; 67. Inclined section; 68. Second horizontal section; 79. Third cylinder; 80. Pressure sensor; 81. Electromagnet; 92. Connector; 93. Fifth cylinder; 94. First clamp; 95. First cylinder; 96. First gripper; 97. Second clamp; 98. Fixture platform; 99. Second cylinder; 99. Second gripper; 90. Arc groove. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail to make the technical solution of this application easier to understand and master.

[0039] This application discloses a horizontal hot melt welding machine for plastic pipe fittings.

[0040] Reference Figures 1-5 This embodiment of a horizontal hot-melt welding machine for plastic pipe fittings includes a machine base 1, a hot-melt welding assembly 2 and two plastic pipe 13 positioning assemblies mounted on the machine base 1. The hot-melt welding assembly 2 has a hot-melt clamp 22 that moves along the Y-axis. The two plastic pipe 13 positioning assemblies are respectively disposed on both sides of the hot-melt clamp 22. Each plastic pipe 13 positioning assembly includes a drive component 33, a fixing frame 31, a receiving platform 32, an alignment adjustment component 4, and a connector 9. The fixing frame 31 is fixedly mounted on the machine base 1, and the receiving platform 32 moves along the Y-axis. The X-axis is slidably connected to the fixed frame 31. The driving component 33 drives the receiving platform 32 to slide. The receiving platform 32 has several placement slots 321 for accommodating plastic tubes 13 along the Y-axis. The placement slots 321 pass through the receiving platform 32 along the X-axis. The alignment adjustment component 4 is used to adjust the position of several plastic tubes 13 on the receiving platform 32 and keep the ends of several plastic tubes 13 close to the hot melt clamp 22 flush. The plug-in component 9 is used to drive the aligned plastic tubes 13 on the two receiving platforms 32 to plug into each other.

[0041] Reference Figures 1-5The operator first drives the receiving platform 32 to move away from the hot melt clamp 22 to the loading position, and places two different diameter plastic tubes 13 into the placement slots 321 of the two receiving platforms 32 respectively. Then, the receiving platform 32 is driven to reset. At this time, the alignment adjustment component 4 can adjust the position of several plastic tubes 13 on the receiving platform 32, so that several plastic tubes 13 move closer to the hot melt clamp 22 and keep their ends flush. The insertion component 9 drives the aligned plastic tubes 13 on the two receiving platforms 32 to insert into each other. Finally, the hot melt clamp 22 moves over to perform batch welding on multiple inserted plastic tubes 13, which effectively solves the problem of needing to connect them one by one and the cumbersome position adjustment in traditional manual operation.

[0042] Reference Figures 1-3 The hot melt welding assembly 2 also includes a fourth cylinder 21, which is fixedly mounted on the hot melt fixture 22 and is used to drive the hot melt fixture 22 to move along the Y-axis. The hot melt fixture 22 is equipped with two pneumatic grippers 221 arranged opposite to each other along the Z-axis, and is also equipped with heating wires inside, which can heat the pneumatic grippers 221.

[0043] Reference Figures 1-2 The machine 1 is also equipped with an industrial camera 11 and a display screen 12. The industrial camera 11 is aimed at the processing position of the plastic tube 13 for hot melting and filming, and the film is projected onto the display screen 12 in real time for the operator to observe.

[0044] Reference Figures 6-8 The driving component 33 includes a motor 34, a lead screw 35, a slider 36, and a slide rail 37. The slide rail 37 is fixedly mounted on the fixed frame 31, and the slider 36 is fixedly mounted on the receiving platform 32. The slider 36 slides along the slide rail 37 in the X-axis direction. The motor 34 is fixedly mounted on the machine base 1, and the output shaft of the motor 34 is coaxially fixedly connected to the lead screw 35. The lead screw 35 is threadedly connected to the slider 36. The motor 34 drives the lead screw 35 to rotate, thereby moving the slider 36 and the receiving platform 32 in the X-axis direction.

[0045] Reference Figures 4-7 The alignment adjustment component 4 includes a second driving component, a lower abutment wheel 41, a bracket 42, a third driving component, a pressure block 43, an alignment plate 44, a fourth driving component, a detection driving component, several moving frames 45, several springs 46, and several upper abutment wheels 47. The lower abutment wheel 41 is rotatably mounted on the receiving platform 32, and the top of the lower abutment wheel 41 protrudes from the bottom wall of the placement groove 321. The second driving component is used to drive the lower abutment wheel 41 to rotate.

[0046] Reference Figures 3-7The bracket 42 is fixed to the receiving platform 32 by screws. The bracket 42 is inclined from bottom to top, gradually approaching the hot melt clamp 22. The pressure block 43 slides on the bracket 42 along the inclined direction. The driving component drives the pressure block 43 to slide. Several movable frames 45 correspond to several placement slots 321 respectively. The movable frames 45 slide in the pressure block 43 along the inclined sliding direction. Several springs 46 are used to drive several movable frames 45 to move down. Several upper abutment wheels 47 are rotatably connected to several movable frames 45 respectively.

[0047] Reference Figures 4-7 The alignment plate 44 in the two alignment adjustment components 4 is the same alignment plate 44. The alignment plate 44 slides vertically on the machine base 1. The driving component 4 drives the alignment plate 44 to slide. After the hot melt fixture 22 exits the processing position, the alignment plate 44 moves to the processing position of the hot melt fixture 22. The two sides of the alignment plate 44 are respectively used for the ends of several plastic tubes 13 on the two receiving platforms 32 to abut.

[0048] Reference Figures 4-7 When the receiving platform 32 moves away from the hot melt clamp 22 to the loading position, the pressure block 43 moves up to the upper abutment roller 47 away from the plastic tube 13; when the receiving platform 32 moves towards the side closer to the hot melt clamp 22, the pressure block 43 moves down to the upper abutment roller 47 and the lower abutment roller 41 together clamp the plastic tube 13; when the end of the plastic tube 13 moves to abut against the alignment plate 44, the detection drive unit drives the moving frame 45 to move up, so that the corresponding upper abutment roller 47 disengages from the plastic tube 13.

[0049] Reference Figures 4-7Alignment plate 44 can accurately occupy its position after the hot melt clamp 22 is removed, providing a uniform abutment reference for the plastic tubes 13 on both sides. Drive component 1 33 drives the receiving platform 32 to move away from the hot melt clamp 22 to the loading position. At this time, the pressure block 43 moves diagonally upward to the top of the bracket 42, and the upper abutment wheel 47 moves away from the plastic tube 13. The loading position is convenient for the operator to place the plastic tube 13, and only a part of the plastic tube 13 needs to be below the bracket 42. Then, drive component 1 33 drives the receiving platform 32 to move back to the hot melt clamp 22. During the resetting process of the receiving platform 32, drive component 3 drives the pressure block 43 to move diagonally downward to the bottom of the bracket 42. At this time, the upper abutment wheel 47 moves to the top of the lower abutment wheel 41. Under the action of spring 46, the upper abutment wheel 47 and the lower abutment wheel 41 move together. Together, they clamp the plastic tube 13; then the second drive unit drives the lower abutment wheel 41 to rotate. The cooperation between the lower abutment wheel 41 and the upper abutment wheel 47 can transport the plastic tube 13 toward the alignment plate 44 until the end of the plastic tube 13 abuts against the alignment plate 44. At this time, the detection drive unit can sense in real time whether the plastic tube 13 is in place. After it is in place, it drives the moving frame 45 to move upward, so that the corresponding upper abutment wheel 47 is disengaged from the plastic tube 13. At this time, the lower abutment wheel 41 can only slide and rub against the plastic tube 13, and cannot force the plastic tube 13 to move forward. This ensures the alignment accuracy and avoids damage to the end of the plastic tube 13 caused by excessive transmission, laying the foundation for subsequent precise welding.

[0050] Reference Figures 4-6 The second driving component includes two racks 51 and two gears 52. The two ends of the lower abutment wheel 41 extend out of the receiving platform 32. The two gears 52 are coaxially fixed at both ends of the lower abutment wheel 41. The two racks 51 are fixedly mounted on the corresponding fixing brackets 31. The racks 51 are located below the gears 52, and the gears 52 are meshed with the racks 51.

[0051] Reference Figures 4-6 The gears 52 at both ends of the lower abutment wheel 41 mesh with the rack 51 on the fixed frame 31. When the driving component 33 drives the receiving platform 32 to slide along the X-axis, the gears 52 roll along the rack 51 as the receiving platform 32 moves, thereby driving the lower abutment wheel 41 to rotate synchronously. The sliding power of the receiving platform 32 is converted into the rotational power of the lower abutment wheel 41, so that the plastic tube 13 can move smoothly with the rotation of the lower abutment wheel 41 during the movement of the receiving platform 32. At the same time, the separate motor 34 or cylinder driving the lower abutment wheel 41 is eliminated, reducing the number of parts of the equipment, reducing the manufacturing cost and maintenance difficulty of the equipment, and improving the stability of the equipment operation.

[0052] Reference Figures 4-7The driving component three includes a guide groove 62 and a first block 61. The guide groove 62 is formed on the fixing frame 31, and the first block 61 is fixed on the pressure block 43. The first block 61 slides in the guide groove 62. The guide groove 62 includes a first horizontal section 621, an inclined section 622 and a second horizontal section 623 in sequence from the side near the alignment plate 44 to the side away from the alignment plate 44. The first horizontal section 621 is lower than the second horizontal section 623. The connection between the inclined section 622 and the first horizontal section 621 and the second horizontal section 623 is smoothly transitioned.

[0053] Reference Figures 4-7 The three-section design of the guide groove 62 slides in conjunction with the first block 61 on the pressure block 43. When the receiving platform 32 moves the pressure block 43, the first block 61 slides along the trajectory of the guide groove 62, thereby causing the pressure block 43 to rise and fall along the tilt direction of the bracket 42. When the receiving platform 32 moves to the loading position, the first block 61 is in the second horizontal section 623, at which point the pressure block 43 is in a high position, and the upper abutment wheel 47 is away from the placement groove 321, facilitating the insertion of the plastic tube 13. When the receiving platform 32 moves towards the hot melt clamp 22, the first block 61 slides along the inclined section 622, the pressure block 43 gradually moves down, and the upper abutment wheel 47 approaches the plastic tube 13. When the first block 61 enters the first horizontal section 621, the pressure block 43 is in a low position, and the upper abutment wheel 47 and the lower abutment wheel 41 together clamp the plastic tube 13. Then, the receiving platform 32 continues to move towards the hot melt clamp 22, and the upper abutment wheel 47 and the lower abutment wheel 41 together drive the plastic tube 13 forward until the plastic tube 13 abuts against the alignment plate 44. The entire process requires no manual control or additional power drive, relying entirely on the movement of the receiving platform 32 to achieve the automatic lifting and lowering of the pressure block 43, improving the automation level and linkage coordination of the equipment operation.

[0054] Reference Figures 4-7 The detection drive includes a controller, several pressure sensors 81 and several electromagnets 82. The pressure sensors 81 are arranged one-to-one with several plastic tubes 13. The pressure sensors 81 are set on the alignment plate 44 and face the side of the corresponding plastic tube 13. The electromagnets 82 are arranged one-to-one with several moving frames 45. The electromagnets 82 are set in the pressure block 43 and are located above the corresponding moving frame 45. The moving frame 45 is made of magnetic material. When the controller detects that the detection signal output by the pressure sensor 81 meets the preset conditions, it drives the corresponding electromagnet 82 to be energized to attract the moving frame 45.

[0055] Reference Figures 4-7Each pressure sensor 81 corresponds to a plastic tube 13. When the end of the plastic tube 13 abuts against the alignment plate 44, the pressure sensor 81 detects a pressure signal and transmits it to the controller. The controller determines whether the signal meets the preset conditions, i.e., whether the plastic tube 13 is fully abutted. When the plastic tube 13 is detected to be in place, the controller drives the corresponding electromagnet 82 to be energized, using magnetic attraction to move the moving frame 45 upward, causing the upper abutting wheel 47 to disengage from the plastic tube 13, thus avoiding continuous clamping and forced transmission of the plastic tube 13.

[0056] Reference Figures 4-7 The pressure block 43 has an inner groove 431 for the sliding frame 45. The electromagnet 82 is fixed inside the pressure block 43 by screws and covers the top opening of the inner groove 431. The top and bottom of the spring 46 abut against the electromagnet 82 and the sliding frame 45, respectively. Both the spring 46 and the pressure block 43 are made of non-magnetic materials, such as stainless steel or plastic. The magnetic force of the electromagnet 82 continues until the entire hot melt welding process is completed, until the receiving platform 32 moves to the loading position, at which point the magnetic force of the electromagnet 82 disappears. The entire device is controlled by a PLC controller. Since the equipment matched with the PLC controller is common equipment and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0057] Reference Figures 4-6 The connector 9 includes a drive unit 5, a first clamp 92 and a second clamp 93. The first clamp 92 and the second clamp 93 are located between two receiving platforms 32. The first clamp 92 and the second clamp 93 correspond to two plastic tube 13 positioning components and are used to clamp the ends of several plastic tubes 13 that are aligned on the corresponding receiving platform 32. The first clamp 92 is fixedly installed on the corresponding fixing frame 31. The second clamp 93 slides on another fixing frame 31 along the X-axis direction. The drive unit 5 drives the second clamp 93 to slide.

[0058] Reference Figures 4-6 This design enables the automatic and precise splicing of two plastic tubes 13, replacing the traditional manual splicing operation and improving splicing efficiency and accuracy. The first clamp 92 and the second clamp 93 correspond to the receiving platforms 32 on both sides, simultaneously clamping the ends of multiple aligned plastic tubes 13 to ensure that the plastic tubes 13 do not shift during splicing. The first clamp 92 is fixedly set, providing a stable reference end for splicing, while the second clamp 93 slides along the X-axis, moving one side of the plastic tube 13 towards the other side under the drive of the driving component, achieving precise splicing of the two plastic tubes 13. This design eliminates the need for manual splicing of each plastic tube 13, making it particularly suitable for batch processing scenarios. It significantly reduces manual operation time and labor intensity. Simultaneously, the clamping action prevents the plastic tubes 13 from skewing or misaligning during splicing, ensuring consistent splicing length and providing strong assurance for the quality of subsequent hot-melt welding.

[0059] Reference Figures 4-6 The first clamp 92 includes a first cylinder 921 and two first jaws 922. The first cylinder 921 and one of the first jaws 922 are fixedly mounted on the fixed frame 31. The piston rod of the first cylinder 921 is set downward and fixed on the other first jaw 922. The two first jaws 922 are arranged facing each other. The second clamp 93 includes a clamping platform 931, a second cylinder 932 and two second jaws 933. The clamping platform 931 slides along the X-axis on the corresponding fixed frame 31. The driving component is a fifth cylinder 91, which is fixedly mounted on the fixed frame 31 and is used to drive the clamping platform 931 to slide. The second cylinder 932 and one of the second jaws 933 are fixedly mounted on the clamping platform 931. The piston rod of the second cylinder 932 is set downward and fixed on the other second jaw 933. Both the first jaw 922 and the second jaw 933 are provided with arc grooves 94 that are interference-fitted with the diameter of the corresponding plastic tube 13.

[0060] Reference Figures 4-6 Both the first clamp 92 and the second clamp 93 use cylinders to drive the opening and closing of the grippers. The cylinder drive has a rapid response and stable clamping force, which can meet the high-efficiency requirements of batch processing. The arc groove 94 opened on the gripper is interference-fitted with the diameter of the plastic tube 13 and fits the outer circle contour of the plastic tube 13, which increases the contact area between the gripper and the plastic tube 13 and improves the clamping firmness.

[0061] Reference Figures 4-6 The arc grooves 94 of the first clamp 922 and the second clamp 933 located below are flared at the end near the corresponding receiving platform 32, which is used to guide the plastic tube 13 into the arc grooves 94. When the first clamp 92 and the second clamp 93 are in the clamping state, the two plastic tubes 13 opposite each other are always coaxially arranged.

[0062] Reference Figure 4 and Figure 5 The driving component four includes a third cylinder 71, which is fixedly mounted on the machine base 1. The piston rod of the third cylinder 71 is vertically upward and fixed on the alignment plate 44. This provides a stable and precise lifting drive for the alignment plate 44.

[0063] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A horizontal hot melt welding machine for plastic pipe fittings, characterized in that: The assembly includes a machine base (1), a hot melt welding assembly (2) mounted on the machine base (1), and two plastic tube (13) positioning assemblies. The hot melt welding assembly (2) has a hot melt clamp (22) that moves along the Y-axis. The two plastic tube (13) positioning assemblies are respectively located on both sides of the hot melt clamp (22). Each plastic tube (13) positioning assembly includes a drive component (33), a fixing frame (31), a receiving platform (32), an alignment adjustment component (4), and a connector (9). The fixing frame (31) is fixedly mounted on the machine base (1), and the receiving platform (32) is slidably connected to the fixing frame (1) along the X-axis. On the fixed frame (31), the driving component (33) drives the receiving platform (32) to slide. The receiving platform (32) has several placement slots (321) for accommodating plastic tubes (13) along the Y-axis direction. The placement slots (321) pass through the receiving platform (32) along the X-axis direction. The alignment adjustment component (4) is used to adjust the position of several plastic tubes (13) on the receiving platform (32) and keep the ends of several plastic tubes (13) close to the hot melt clamp (22) flush. The plug-in component (9) is used to drive the aligned plastic tubes (13) on the two receiving platforms (32) to plug into each other. The alignment adjustment component (4) includes a second drive component, a lower abutment wheel (41), a bracket (42), a third drive component, a pressure block (43), an alignment plate (44), a fourth drive component, a detection drive component, several moving frames (45), several springs (46) and several upper abutment wheels (47). The lower abutment wheel (41) is rotatably mounted on the receiving platform (32). The top of the lower abutment wheel (41) protrudes from the bottom wall of the placement groove (321). The second drive component is used to drive the lower abutment wheel (41) to rotate. The bracket (42) is detachably fixed on the receiving platform (32). The bracket (42) is inclined from bottom to top, gradually approaching the hot melt clamp (22). The pressure block (43) slides on the bracket (42) along the inclined direction. The driving component drives the pressure block (43) to slide. Several movable frames (45) correspond to several placement slots (321). The movable frames (45) slide in the pressure block (43) along the inclined sliding direction of the pressure block (43). Several springs (46) are used to drive several movable frames (45) to move down. Several upper abutment wheels (47) are rotatably connected to several movable frames (45). The alignment plates (44) in the two alignment adjustment components (4) are the same alignment plate (44). The alignment plate (44) slides vertically on the machine base (1). The driving component drives the alignment plate (44) to slide. After the hot melt fixture (22) exits the processing position, the alignment plate (44) moves to the processing position of the hot melt fixture (22). The two sides of the alignment plate (44) are respectively provided for the ends of several plastic tubes (13) on the two receiving platforms (32) to abut. When the receiving platform (32) moves away from the hot melt clamp (22) to the loading position, the pressure block (43) moves up to the upper abutment wheel (47) away from the plastic tube (13); when the receiving platform (32) moves towards the side closer to the hot melt clamp (22), the pressure block (43) moves down to the upper abutment wheel (47) and the lower abutment wheel (41) together clamp the plastic tube (13); when the end of the plastic tube (13) moves to abut against the alignment plate (44), the detection drive drives the moving frame (45) to move up, so that the corresponding upper abutment wheel (47) disengages from the plastic tube (13); The second driving component includes two racks (51) and two gears (52). The two ends of the lower abutment wheel (41) extend out of the receiving platform (32). The two gears (52) are coaxially fixed at both ends of the lower abutment wheel (41). The two racks (51) are fixedly mounted on the corresponding fixing frame (31). The racks (51) are located below the gears (52). The gears (52) are meshed with the racks (51). The driving component three includes a guide groove (62) and a first block (61). The guide groove (62) is formed on the fixing frame (31). The first block (61) is fixed on the pressure block (43). The first block (61) slides in the guide groove (62). The guide groove (62) includes a first horizontal section (621), an inclined section (622), and a second horizontal section (623) in sequence from the side near the alignment plate (44) to the side away from the alignment plate (44). The first horizontal section (621) is lower than the second horizontal section (623). The inclined section (622) smoothly transitions at the connection between the first horizontal section (621) and the second horizontal section (623).

2. The horizontal hot melt welding machine for plastic pipe fittings according to claim 1, characterized in that: The detection drive includes a controller, several pressure sensors (81) and several electromagnets (82). The pressure sensors (81) are arranged one-to-one with the plastic tubes (13). The pressure sensors (81) are arranged on the alignment plate (44) and face the side of the corresponding plastic tube (13). The electromagnets (82) are arranged one-to-one with the moving frames (45). The electromagnets (82) are arranged inside the pressure block (43) and above the corresponding moving frame (45). The moving frame (45) is made of magnetic material. When the controller detects that the detection signal output by the pressure sensor (81) meets the preset conditions, it drives the corresponding electromagnet (82) to be energized to attract the moving frame (45).

3. The horizontal hot melt welding machine for plastic pipe fittings according to claim 1, characterized in that: The connector (9) includes a drive component five, a first clamp (92) and a second clamp (93). The first clamp (92) and the second clamp (93) are located between two receiving platforms (32). The first clamp (92) and the second clamp (93) correspond to two plastic tube (13) positioning components and are used to clamp the ends of several plastic tubes (13) aligned on the corresponding receiving platform (32). The first clamp (92) is fixedly installed on the corresponding fixing frame (31). The second clamp (93) slides along the X-axis on another fixing frame (31). The drive component five drives the second clamp (93) to slide.

4. A horizontal hot melt welding machine for plastic pipe fittings according to claim 3, characterized in that: The first clamp (92) includes a first cylinder (921) and two first jaws (922). The first cylinder (921) and one of the first jaws (922) are fixedly mounted on a fixed frame (31). The piston rod of the first cylinder (921) is positioned downwards and fixed on the other first jaw (922). The two first jaws (922) are positioned facing each other. The second clamp (93) includes a clamping table (931), a second cylinder (932), and two second jaws (933). The fixture table (931) slides along the X-axis on the corresponding fixed frame (31). The driving component drives the fixture table (931) to slide. The second cylinder (932) and one of the second jaws (933) are fixedly mounted on the fixture table (931). The piston rod of the second cylinder (932) is set downward and fixed on the other second jaw (933). The first jaw (922) and the second jaw (933) are both provided with arc grooves (94) that are interference-fitted with the diameter of the corresponding plastic tube (13).

5. A horizontal hot melt welding machine for plastic pipe fittings according to claim 1, characterized in that: The driving component four includes a third cylinder (71), which is fixedly mounted on the machine base (1). The piston rod of the third cylinder (71) is vertically upward and fixed on the alignment plate (44).

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