HDPE co-layer drainage floor drain infrared welding equipment and method

Abstract

The application belongs to the technical field of floor drain welding equipment, and discloses an HDPE same-layer drainage floor drain infrared welding device and method, which comprises a main frame, an upper moving mechanism, a lower moving mechanism, a heating mechanism and a control device, wherein the upper moving mechanism, the lower moving mechanism, the heating mechanism and the control device are arranged on the main frame, the upper moving mechanism, the lower moving mechanism, the heating mechanism and the control device are electrically connected, the upper moving mechanism is arranged above the heating mechanism, the lower moving mechanism is arranged below the heating mechanism, the upper moving mechanism is used for placing a floor drain upper cover, the lower moving mechanism is used for placing a floor drain lower cover, the heating mechanism is used for heating the welding position of the floor drain upper cover and the floor drain lower cover, and the control device is used for controlling the upper moving mechanism and the lower moving mechanism to move close to each other and controlling the heating and movement of the heating mechanism. The device has high automation degree, shortens the welding time, effectively improves the welding efficiency and guarantees the qualified rate of products.

Description

Technical Field

[0001] This invention belongs to the technical field of floor drain welding equipment, and particularly relates to an infrared welding device and method for HDPE same-layer drainage floor drains. Background Technology

[0002] HDPE in-floor drainage systems have advantages such as clear property rights, high space utilization, low noise, and stable connection of system components. In recent years, they have been widely used in drainage projects for various high-end residences.

[0003] Unlike traditional PVC pipes that are joined with glue, HDPE in-floor drainage systems often use thermofusion welding to connect components. Floor drains, as special components, consist of a drain body and a drain cover, which cannot be integrally injection molded. They must be injection molded separately and then joined by thermofusion welding. Currently, manual thermofusion welding is commonly used. First, a heating plate is heated to a specified temperature, then the drain body and cover are heated on the plate for a specified time before being joined. This process is inefficient. Furthermore, due to the thin wall thickness of the floor drain, misalignment and over-welding are common during welding, often resulting in a low yield rate and increased production costs. Summary of the Invention

[0004] The purpose of this invention is to provide an infrared welding device and method for HDPE in-floor drainage drains to solve the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, the specific technical solution of the infrared welding equipment and method for HDPE in-floor drainage floor drains of the present invention is as follows:

[0006] An infrared welding device for HDPE in-situ drainage floor drains includes a main frame, an upper moving mechanism, a lower moving mechanism, a heating mechanism, and a control device. The upper moving mechanism, lower moving mechanism, heating mechanism, and control device are all mounted on the main frame. The upper moving mechanism, lower moving mechanism, and heating mechanism are electrically connected to the control device. The upper moving mechanism is positioned above the heating mechanism, and the lower moving mechanism is positioned below the heating mechanism. The upper moving mechanism is used to place the upper cover of the floor drain, and the lower moving mechanism is used to place the lower cover of the floor drain. The heating mechanism is used to heat the weld joint between the upper and lower covers. The control device is used to control the upper and lower moving mechanisms to move closer together, and to control the heating and movement of the heating mechanism.

[0007] Furthermore, the control device includes a main control system and an infrared control system. The main control system includes a power switch, a pneumatic switch, a lead screw, a rotary motor, and a pneumatic compressor. The power switch controls the start and stop of the equipment. The pneumatic switch controls the upper moving mechanism to adsorb the drain cover. The lead screw includes two sets, left and right, each set having multiple screws. The lead screw is a bidirectional threaded rod, with the upper part being a forward threaded rod and the lower part a reverse threaded rod. The lead screw is fixedly connected to the output end of the rotary motor and is controlled by the rotary motor. The lead screw drives the upper and lower moving mechanisms to move. The infrared control system includes a control screen, a temperature and time adjustment knob, a mode switching knob, a movement adjustment knob, a pull switch, and a welding switch. The control screen is used to input control parameters. The temperature and time adjustment knob is used to adjust the heating temperature and time. The mode switching knob is used to switch between automatic and manual modes. The movement adjustment knob is used to manually adjust the movement of the upper and lower moving mechanisms. The pull switch is used to manually adjust the removal of the heating mechanism. The welding switch is used to start the equipment in automatic mode.

[0008] Furthermore, the upper moving mechanism includes an upper limit plate, a movable upper plate, and an upper limit sleeve. The upper limit sleeve is fixedly installed in the middle of the movable upper plate with its opening facing downwards. The bottom of the upper limit sleeve has multiple suction cups, which are connected to the air compressor of the main control system and are controlled by the air compressor for adsorption. The upper limit sleeve is used to limit, fix, and adsorb the drain cover. The two ends of the movable upper plate are threadedly connected to the positive threaded rods of the upper half of the left and right sets of lead screws. The upper limit plate is fixedly installed on the upper end of the main frame and is rotatably connected to the top of the left and right sets of lead screws through a bushing to limit the highest moving position of the movable upper plate.

[0009] Furthermore, the lower moving mechanism includes a lower limiting plate, a movable lower plate, a lower limiting sleeve, and a limiting module. The lower limiting sleeve is fixedly installed in the middle of the movable lower plate with its opening facing upward. The lower limiting sleeve is used to limit and fix the drain cover. The two ends of the movable lower plate are threadedly connected to the reverse threaded rods of the lower half of the left and right sets of lead screws. The lower limiting plate is fixedly installed at the lower end of the main frame and is rotatably connected to the bottom of the left and right sets of lead screws through a bushing to limit the lowest moving position of the movable lower plate.

[0010] Furthermore, the limiting module includes a left limiting module and a right limiting module, which are fixedly installed on the movable lower plate and respectively located on both sides of the lower limiting sleeve.

[0011] Furthermore, the left limiting module includes a left pneumatic motor, an adjusting screw, an adjusting block, a fixing screw, and a left limiting plug. The left pneumatic motor is connected to the left limiting plug, the adjusting block is fixedly connected to the lower part of the left pneumatic motor, the adjusting screw is threadedly connected to the left limiting plug, and its bottom abuts against the adjusting block. The height of the left limiting plug can be adjusted by adjusting the depth of the adjusting screw into the left limiting plug. The entire left limiting plug can move on the adjusting block, and after the distance is adjusted, it is fixed by the fixing screw.

[0012] Furthermore, the right limiting module includes a right pneumatic motor and a right limiting plug, wherein the pneumatic motor is fixedly connected to the right limiting plug and is used to drive the right limiting plug to move.

[0013] Furthermore, the heating mechanism includes a fixed plate bracket, a fixed plate, a fixed plate moving mechanism, an upper heating component, and a lower heating component. The fixed plate bracket is fixedly installed between two sets of lead screws, movably connected to the lead screws via bushings, and fixedly connected to the main frame. The fixed plate is movably connected to the fixed plate bracket via the fixed plate moving mechanism. The upper heating component and the lower heating component are respectively disposed on the upper and lower surfaces of the fixed plate bracket, and are used to heat the upper and lower covers of the floor drain, respectively. The upper heating component and the lower heating component are each provided with a welded limiting ring. Multiple infrared heating holes are provided within the area enclosed by the welded limiting ring. The infrared heating holes are electrically connected to an infrared control system and are controlled by the infrared control system.

[0014] Furthermore, the fixed plate moving mechanism is a sliding motor, which is fixedly installed inside the fixed bracket. The slider of the sliding motor is fixedly connected to the fixed plate. The rotation of the sliding motor drives the slider to move back and forth, thereby driving the fixed plate to move back and forth.

[0015] This invention also discloses a control method for an infrared welding device for HDPE in-floor drainage drains, including an initialization step and an automatic control step:

[0016] Step 1: Initialization steps:

[0017] Step 1.1: First, turn on the power switch and adjust the mode switching knob on the control panel to switch the mode to manual mode;

[0018] Step 1.2: At this time, place the upper drain cover and the lower drain cover into the upper limit sleeve and the lower limit sleeve respectively, turn on the pneumatic switch, start the pneumatic compressor, and drive the multiple suction cups under the upper limit sleeve to firmly adhere the upper drain cover. At the same time, the pneumatic motors of the left limit module and the right limit module on the lower limit sleeve start to run, pushing the left limit plug and the right limit plug to move inward until they enter the port of the lower drain cover, thereby ensuring that the lower drain cover is fixed.

[0019] Step 1.3: By adjusting the movement adjustment knobs of the movable upper plate and the movable lower plate, adjust the movable upper plate to move downward along the screw from the initial position, and the movable lower plate to move upward along the screw from the initial position, to ensure that the welded outer wall of the drain cover and the main body is tightly attached to the welded limiting ring, and the welded surface is in contact with the infrared heating hole. At this time, the control screen displays the movement distance H1 of the movable upper plate and the movable lower plate. Find the movement parameter of the heating stage in the control screen and input the movement distance H1 of the movable upper plate and the movable lower plate.

[0020] Step 1.4: Adjust the moving adjustment knob to return the movable upper plate and movable lower plate to their initial positions. After completion, turn on the shaft switch. At this time, the heating mechanism will move backward along the fixed plate moving mechanism and stop after moving to the innermost end.

[0021] Step 1.5: Then adjust the adjustment knob to ensure that the upper and lower covers of the drain can contact each other. Record the moving distance H2 of the movable upper and lower plates. Then find the moving parameters of the welding stage on the control panel and input the moving distance H2 of the movable upper and lower plates respectively.

[0022] Step 1.6: Locate the parameter interface on the control screen, select the temperature parameter, and then set the welding temperature using the temperature and time adjustment knob. Next, select the heating time option and set the heating time using the temperature and time adjustment knob. Finally, select the welding time parameter on the control screen and set the docking time using the temperature and time adjustment knob. This completes the equipment initialization.

[0023] Step 2: Automatic control steps:

[0024] Step 2.1: Ensure the drain cover and drain cap are properly inserted to secure their positions;

[0025] Step 2.2: Adjust the mode switching knob on the control panel to switch the mode to automatic mode;

[0026] Step 2.3: Then turn on the welding switch. At this time, the movable upper plate and the movable lower plate will move according to the distance entered in the steps. At the same time, the heating mechanism will push forward along the fixed plate moving mechanism and stop after reaching the front end. This will drive the installed drain cover and drain lower cover to move towards the heating mechanism. After reaching the set distance, they will contact the heating mechanism and start infrared heating. After reaching the set heating temperature and time in the steps, the heating mechanism will move backward along the fixed plate moving mechanism. The movable upper plate and the movable lower plate will first return to the origin according to the program, and then move according to the set welding moving distance to ensure that the heated drain cover and drain lower cover contact and dock. After reaching the set welding time, the pneumatic switch will stop automatically, the suction cup will stop working, and at the same time, the left limit module and the right limit module will work, driving the left limit plug and the right limit plug to move to both sides. Then, manually remove the welded drain.

[0027] Step 2.4: Then, put the drain cover and drain cap back in to be welded, turn on the pneumatic switch, and then turn on the welding switch to start welding the next drain.

[0028] The infrared welding equipment for HDPE in-floor drainage drains of the present invention has the following advantages:

[0029] Compared to traditional hot plate heating welding, this invention features a heating mechanism that can be activated in advance, eliminating the need to wait for the temperature to rise before welding. It can quickly reach the welding temperature, effectively shortening the welding time and improving welding efficiency.

[0030] The equipment is highly automated and easy to operate.

[0031] By setting process parameters, the risks of manual welding can be effectively avoided. At the same time, infrared welding ensures uniform heating of the interface, improves welding quality, and thus guarantees the product qualification rate. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the infrared welding equipment for HDPE in-floor drainage floor drains of the present invention;

[0033] Figure 2 This is a schematic diagram of the limiting module structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the heating mechanism structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the upper moving mechanism, heating mechanism, and lower moving mechanism of the present invention;

[0036] Explanation of markings in the diagram: 1. Main frame; 2. Upper moving mechanism; 21. Upper limit plate; 22. Movable upper plate; 23. Upper limit sleeve; 3. Lower moving mechanism; 31. Lower limit plate; 32. Movable lower plate; 33. Lower limit sleeve; 34. Limit module; 341. Left limit module; 3411. Left pneumatic motor; 3412. Adjusting screw; 3413. Adjusting block; 3414. Fixing screw; 3415. Left limit plug; 342. Right limit module; 3421. Right pneumatic motor; 3422. Right limit plug; 4. Heating mechanism; 41. Fixed plate bracket; 42. Fixed plate; 43. Fixed plate moving mechanism; 44. Upper heating component; 441. Welded limit ring;

[0037] 442. Infrared heating hole; 45. Lower heating component; 5. Control device; 51. Main control system; 511. Power switch; 512. Pneumatic switch; 513. Lead screw; 52. Infrared control system; 521. Control panel; 522. Temperature and time adjustment knob; 523. Mode switching knob; 524. Movement adjustment knob; 525. Pull-out switch; 526. Welding switch; 6. Drain cover; 7. Drain cover. Detailed Implementation

[0038] To better understand the purpose, structure, and function of this invention, the following detailed description, in conjunction with the accompanying drawings, provides an infrared welding device and method for HDPE in-floor drainage drains.

[0039] like Figure 1-4 As shown, an infrared welding device for HDPE floor drains of the present invention includes a main frame 1, an upper moving mechanism 2, a lower moving mechanism 3, a heating mechanism 4, and a control device 5. The upper moving mechanism 2, the lower moving mechanism 3, the heating mechanism 4, and the control device 5 are all mounted on the main frame 1. The upper moving mechanism 2, the lower moving mechanism 3, the heating mechanism 4, and the control device 5 are electrically connected. The upper moving mechanism 2 is positioned above the heating mechanism 4, and the lower moving mechanism 3 is positioned below the heating mechanism 4. The upper moving mechanism 2 is used to place the floor drain cover 6, and the lower moving mechanism is used to place the floor drain cover 7. The heating mechanism 4 is used to heat the welding joint between the floor drain cover 6 and the floor drain cover 7. The control device 5 is used to control the upper moving mechanism 2 and the lower moving mechanism 3 to move closer to each other, and to control the heating and movement of the heating mechanism 4.

[0040] The main frame 1 is a rectangular frame. The control device 5 includes a main control system 51 and an infrared control system 52. The main control system 51 is located below the main frame 1, and the infrared control system 52 is located above the main frame 1. The main control system 51 includes a power switch 511, a pneumatic switch 512, a lead screw 513, a rotary motor, and a pneumatic compressor. The power switch 511 is used to control the start and stop of the equipment, and the pneumatic switch 512 is used to control the upper moving mechanism 2 to absorb the drain cover 6. The lead screw 513 includes two sets, left and right, each set with multiple screws. The lead screw 513 is a bidirectional threaded rod, with the upper part being a forward threaded rod and the lower part being a reverse threaded rod. The lead screw 513 is fixedly connected to the output end of the rotary motor and is controlled by the rotary motor. The lead screw 513 is used to drive the upper moving mechanism 2 and the lower moving mechanism 3 to move. The infrared control system 52 includes a control panel 521, a temperature and time adjustment knob 522, a mode switching knob 523, a movement adjustment knob 524, a pull switch 525, and a welding switch 526. The control panel 521 is used to input control parameters; the temperature and time adjustment knob 522 is used to adjust the heating temperature and time; the mode switching knob 523 is used to switch between automatic and manual modes; the movement adjustment knob 524 is used to manually adjust the movement of the upper moving mechanism 2 and the lower moving mechanism 3; and the pull switch 525 is used to manually adjust the retraction of the heating mechanism 4. The welding switch 526 is used to start the equipment in automatic mode.

[0041] The upper moving mechanism 2 includes an upper limit plate 21, a movable upper plate 22, and an upper limit sleeve 23. The upper limit sleeve 23 is fixedly installed in the middle of the movable upper plate 22, with its opening facing downwards. Multiple suction cups 231 are located at the bottom of the upper limit sleeve 23, and these suction cups 231 are connected to the air compressor of the main control system 5, with the air compressor controlling the suction. The upper limit sleeve 23 is used to limit, fix, and suction the drain cover 6. Both ends of the movable upper plate 22 are threadedly connected to the upper part of the positive threaded rods of the left and right sets of lead screws 513. The upper limit plate 21 is fixedly installed on the upper end of the main frame 1 and is rotatably connected to the top of the left and right sets of lead screws 513 via bushings, used to limit the highest moving position of the movable upper plate 22.

[0042] The lower moving mechanism 3 includes a lower limit plate 31, a movable lower plate 32, a lower limit sleeve 33, and a limiting module 34. The lower limit sleeve 33 is fixedly installed in the middle of the movable lower plate 32, with its opening facing upwards. The lower limit sleeve 33 is used to limit and fix the drain cover 7. Both ends of the movable lower plate 32 are threadedly connected to the reverse threaded rods of the lower half of the left and right sets of lead screws 513. The lower limit plate 31 is fixedly installed at the lower end of the main frame 1 and is rotatably connected to the bottom of the left and right sets of lead screws 513 through bushings, used to limit the lowest moving position of the movable lower plate 32.

[0043] The limiting module 34 includes a left limiting module 341 and a right limiting module 342. The left limiting module 341 and the right limiting module 342 are fixedly installed on the movable lower plate 32 and are respectively set on both sides of the lower limiting sleeve 33. The left limiting module 341 includes a left pneumatic motor 3411, an adjusting screw 3412, an adjusting block 3413, a fixing screw 3414, and a left limiting plug 3415. The left pneumatic motor 3411 is connected to the left limiting plug 3415. The adjusting block 3413 is fixedly connected to the lower part of the left pneumatic motor 3411. The adjusting screw 3412 is threadedly connected to the left limiting plug 3415 and its bottom abuts against the adjusting block 3413. The height of the left limiting plug 3415 can be adjusted by adjusting the depth of the adjusting screw 3412 screwed into the left limiting plug 3415. The entire left limiting plug 3415 can move on the adjusting block 3413. After the distance is adjusted, it can be fixed by the fixing screw 3414. Floor drains can be adjusted to accommodate different heights and port lengths.

[0044] The right limit module 342 includes a right pneumatic motor 3421 and a right limit plug 3422. The pneumatic motor 3421 is fixedly connected to the right limit plug 3422 and is used to drive the right limit plug 3422 to move.

[0045] The left limit module 341 and the right limit module 342 can be set to fix both single-channel and dual-channel floor drains (Note: single-channel has only one port on one side, and dual-channel has two ports).

[0046] The heating mechanism 4 includes a fixed plate bracket 41, a fixed plate 42, a fixed plate moving mechanism 43, an upper heating component 44, and a lower heating component 45. The fixed plate bracket 41 is fixedly installed between two sets of lead screws 513, and is movably connected to the lead screws 513 through bushings, and is fixedly connected to the main frame 1. The fixed plate 42 is movably connected to the fixed plate bracket 41 through the fixed plate moving mechanism 43. The upper heating component 44 and the lower heating component 45 are respectively disposed on the upper and lower surfaces of the fixed plate bracket 41, and are used to heat the drain cover 6 and the drain cover 7, respectively. The upper heating component 44 and the lower heating component 45 are each provided with a welded limiting ring 441. Multiple infrared heating holes 442 are provided within the area enclosed by the welded limiting ring 441. The infrared heating holes 442 are electrically connected to the infrared control system 52 and are controlled by the infrared control system 52. The fixed plate moving mechanism 43 is a sliding motor. The sliding motor is fixedly installed inside the fixed bracket 41. The slider of the sliding motor is fixedly connected to the fixed plate 42. The rotation of the sliding motor drives the slider to move back and forth, thereby driving the fixed plate 42 to move back and forth.

[0047] The control method of the infrared welding equipment for HDPE in-floor drainage drains of the present invention includes the following initialization steps and automatic control steps:

[0048] Step 1: Initialization steps:

[0049] Step 1.1: First, turn on the power switch 511 and adjust the mode switching knob 523 on the control panel 521 to switch the mode to manual mode (turn left for manual, turn right for automatic).

[0050] Step 1.2: At this time, place the upper drain cover 6 and the lower drain cover 7 into the upper limit sleeve 23 and the lower limit sleeve 33 respectively, turn on the pneumatic switch 512, start the pneumatic compressor, and drive the multiple suction cups 231 below the upper limit sleeve 23 to firmly adhere to the upper drain cover 6. At the same time, the pneumatic motors of the left limit module 341 and the right limit module 342 on the lower limit sleeve 33 start to run, pushing the left limit plug 3415 and the right limit plug 3422 to move inward until they enter the port of the lower drain cover 7, thereby ensuring that the lower drain cover 7 is fixed.

[0051] Step 1.3: By adjusting the movement adjustment knobs 524 (left turn moves up, right turn moves down) of the movable upper plate 22 and the movable lower plate 32, adjust the movable upper plate 22 to move downward along the lead screw 513 from the initial position, and the movable lower plate 32 to move upward along the lead screw 513 from the initial position, ensuring that the welded outer wall of the drain cover and the main body is tightly attached to the welded limiting ring 441, and the welded surface is in contact with the infrared heating hole 442. At this time, the movement distance H1 of the movable upper plate 22 and the movable lower plate 32 will be displayed on the control screen 521. Find the movement parameters of the heating stage in the control screen 521 and input the movement distance H1 of the movable upper plate 22 and the movable lower plate 32.

[0052] Step 1.4: Adjust the movable adjustment knob 524 to return the movable upper plate 22 and movable lower plate 32 to their initial positions. After completion, turn on the shaft switch 525 (turn left to move outward, turn right to move inward). At this time, the heating mechanism 4 will move backward along the fixed plate moving mechanism 43 and stop after moving to the innermost end.

[0053] Step 1.5: Then adjust the adjustment knob 32 to ensure that the drain cover 6 and the drain cover 7 can contact each other. Record the moving distance H2 of the movable upper plate 22 and the movable lower plate 32. Then find the moving parameters of the welding stage on the control panel 521 and input the moving distance H2 of the movable upper plate 22 and the movable lower plate 32 respectively (considering the problem of plastic edge turning after hot melting, the distance parameter needs to be increased appropriately).

[0054] Step 1.6: Locate the parameter interface on the control panel 521, select the temperature parameter, and then set the welding temperature using the temperature-time adjustment knob 522 (left for increase, right for decrease). Next, select the heating time option and set the heating time using the temperature-time adjustment knob 522 (left for increase, right for decrease). Finally, select the welding time parameter on the control panel and set the docking time using the temperature-time adjustment knob 522 (left for increase, right for decrease). This completes the equipment initialization. The initialization settings can adapt to more floor drain models, and the control data comes from actual working processes, ensuring accuracy and reliability.

[0055] Step 2: Automatic control steps:

[0056] Step 2.1: Ensure that the drain cover 6 and drain bottom cover 7 are properly inserted to complete the positioning.

[0057] Step 2.2: Adjust the mode switching knob 523 on the control panel 521 to switch the mode to automatic mode.

[0058] Step 2.3: Then turn on the welding switch 526. At this time, the movable upper plate 22 and the movable lower plate 32 will move according to the distance input in Step 1. At the same time, the heating mechanism 4 will move forward along the fixed plate moving mechanism 43 and stop after reaching the front end. This will drive the installed drain cover 6 and drain cover 7 to move towards the heating mechanism 4. After reaching the set distance, they will contact the heating mechanism 4 and start infrared heating. After reaching the heating temperature and time set in Step 1, the heating mechanism 4 will move backward along the fixed plate moving mechanism 43. The movable upper plate 22 and the movable lower plate 32 will first return to the origin according to the program, and then move according to the set welding moving distance to ensure that the heated drain cover 6 and drain cover 7 contact and dock. After reaching the set welding time, the pneumatic switch 512 will stop automatically, the suction cup 231 will stop working, and at the same time, the left limit module 341 and the right limit module 342 will work, driving the left limit plug 3415 and the right limit plug 3422 to move to both sides. At this time, the welded drain can be manually removed.

[0059] Step 2.4: Then, put the drain cover 6 and drain cover 7 back in to be welded, turn on the pneumatic switch 512, and then turn on the welding switch 526 to start welding the next drain.

[0060] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. An infrared welding device for HDPE floor drains, comprising a main frame (1), an upper moving mechanism (2), a lower moving mechanism (3), a heating mechanism (4), and a control device (5), wherein the upper moving mechanism (2), the lower moving mechanism (3), the heating mechanism (4), and the control device (5) are all mounted on the main frame (1), characterized in that, The upper moving mechanism (2), the lower moving mechanism (3), and the heating mechanism (4) are electrically connected to the control device (5). The upper moving mechanism (2) is located above the heating mechanism (4), and the lower moving mechanism (3) is located below the heating mechanism (4). The upper moving mechanism (2) is used to place the drain cover (6), and the lower moving mechanism (3) is used to place the drain cover (7). The heating mechanism (4) is used to heat the welded joint of the drain cover (6) and the drain cover (7). The control device (5) is used to control the upper moving mechanism (2) and the lower moving mechanism (3) to move closer to each other, and to control the heating and movement of the heating mechanism (4). The control device (5) includes a main control system (51) and an infrared control system (52). The main control system (51) includes a power switch (511), a pneumatic switch (512), a lead screw (513), a rotary motor, and a pneumatic compressor. The power switch (511) is used to control the start and stop of the equipment. The pneumatic switch (512) is used to control the upper moving mechanism (2) to adsorb the drain cover (6). The lead screw (513) includes two groups, left and right, each group having multiple screws. The lead screw (513) is a bidirectional threaded rod, with the upper part being a forward threaded rod and the lower part being a reverse threaded rod. The lead screw (513) is fixedly connected to the output end of the rotary motor and is controlled by the rotary motor. The lead screw (513) is used to drive the upper moving mechanism (2) and the lower moving mechanism. (3) Movement; The infrared control system (52) includes a control panel (521), a temperature and time adjustment knob (522), a mode switching knob (523), a movement adjustment knob (524), a pull switch (525), and a welding switch (526). The control panel (521) is used to input control parameters. The temperature and time adjustment knob (522) is used to adjust the heating temperature and time. The mode switching knob (523) is used to switch between automatic mode and manual mode. The movement adjustment knob (524) is used to manually adjust the movement of the upper movement mechanism (2) and the lower movement mechanism (3). The pull switch (525) is used to manually adjust the removal of the heating mechanism (4). The welding switch (526) is used to start the equipment in automatic mode. The upper moving mechanism (2) includes an upper limit plate (21), a movable upper plate (22), and an upper limit sleeve (23). The upper limit sleeve (23) is fixedly installed in the middle of the movable upper plate (22) with its opening facing downwards. The bottom of the upper limit sleeve (23) has multiple suction cups. The suction cups are connected to the air compressor of the main control system (51) and are controlled by the air compressor for adsorption. The upper limit sleeve (23) is used to limit and fix and adsorb the drain cover (6). The two ends of the movable upper plate (22) are threadedly connected to the positive thread rods of the upper half of the left and right sets of screw rods (513). The upper limit plate (21) is fixedly installed on the upper end of the main frame (1) and is rotatably connected to the top of the left and right sets of screw rods (513) through a bushing to limit the highest moving position of the movable upper plate (22). The heating mechanism (4) includes a fixed plate bracket (41), a fixed plate (42), a fixed plate (42) moving mechanism (43), an upper heating component (44), and a lower heating component (45). The fixed plate bracket (41) is fixedly installed between two sets of lead screws (513), and is movably connected to the lead screws (513) through a bushing, and is fixedly connected to the main frame (1). The fixed plate (42) is movably connected to the fixed plate bracket (41) through the fixed plate (42) moving mechanism (43). The upper heating component (44) is... The upper heating component (44) and the lower heating component (45) are respectively installed on the upper and lower surfaces of the fixed plate bracket (41) and are used to heat the drain cover (6) and the drain cover (7) respectively. The upper heating component (44) and the lower heating component (45) are respectively equipped with welding limiting rings (441). The welding limiting rings (441) have multiple infrared heating holes (442) within the range enclosed by the welding limiting rings (441). The infrared heating holes (442) are electrically connected to the infrared control system (52) and are controlled by the infrared control system (52). The moving mechanism (43) of the fixed plate (42) is a sliding motor. The sliding motor is fixedly installed inside the fixed bracket. The slider of the sliding motor is fixedly connected to the fixed plate (42). The rotation of the sliding motor drives the slider to move back and forth, thereby driving the fixed plate (42) to move back and forth.

2. The infrared welding equipment for HDPE in-floor drainage drains according to claim 1, characterized in that, The lower moving mechanism (3) includes a lower limit plate (31), a movable lower plate (32), a lower limit sleeve (33), and a limit module (34). The lower limit sleeve (33) is fixedly installed in the middle of the movable lower plate (32) with the opening facing upward. The lower limit sleeve (33) is used to limit and fix the drain cover (7). The two ends of the movable lower plate (32) are threadedly connected to the reverse threaded rods of the lower half of the left and right sets of screw rods (513). The lower limit plate (31) is fixedly installed at the lower end of the main frame (1) and is rotatably connected to the bottom of the left and right sets of screw rods (513) through a bushing. It is used to limit the lowest moving position of the movable lower plate (32).

3. The infrared welding equipment for HDPE in-floor drainage drains according to claim 2, characterized in that, The limiting module (34) includes a left limiting module (341) and a right limiting module (342). The left limiting module (341) and the right limiting module (342) are fixedly installed on the movable lower plate (32) and respectively set on both sides of the lower limiting sleeve (33).

4. The infrared welding equipment for HDPE in-floor drainage drains according to claim 3, characterized in that, The left limiting module (341) includes a left pneumatic motor (3411), an adjusting screw (3412), an adjusting block (3413), a fixing screw (3414), and a left limiting plug (3415). The left pneumatic motor (3411) is connected to the left limiting plug (3415). The adjusting block (3413) is fixedly connected to the lower part of the left pneumatic motor (3411). The adjusting screw (3412) is threadedly connected to the left limiting plug (3415), and its bottom abuts against the adjusting block (3413). The height of the left limiting plug (3415) can be adjusted by adjusting the depth of the adjusting screw (3412) into the left limiting plug (3415). The entire left limiting plug (3415) can move on the adjusting block (3413). After the distance is adjusted, it is fixed by the fixing screw (3414).

5. The infrared welding equipment for HDPE in-floor drainage drains according to claim 3, characterized in that, The right limiting module (342) includes a right pneumatic motor (3421) and a right limiting plug (3422). The pneumatic motor is fixedly connected to the right limiting plug (3422) and is used to drive the right limiting plug (3422) to move.

6. A control method for an infrared welding device for HDPE in-floor drainage floor drains as described in any one of claims 1-5, characterized in that, Includes initialization steps and automatic control steps: Step 1: Initialization steps: Step 1.1: First, turn on the power switch (511), and adjust the mode switching knob (523) on the control panel (521) to switch the mode to manual mode; Step 1.2: At this time, place the drain cover (6) and drain cover (7) into the upper limit sleeve (23) and lower limit sleeve (33) respectively, turn on the pneumatic switch (512), start the pneumatic compressor, and drive the multiple suction cups below the upper limit sleeve (23) to firmly adhere to the drain cover (6). At the same time, the pneumatic motors of the left limit module (341) and right limit module (342) on the lower limit sleeve (33) start running, pushing the left limit plug (3415) and right limit plug (3422) to move inward until they enter the port of the drain cover (7), thereby ensuring that the drain cover (7) is fixed. Step 1.3: By adjusting the movement adjustment knobs (524) of the movable upper plate (22) and the movable lower plate (32), the movable upper plate (22) moves downward along the lead screw (513) from the initial position, and the movable lower plate (32) moves upward along the lead screw (513) from the initial position, so as to ensure that the welded outer wall of the drain cover (6) and the main body is tightly attached to the welding limit ring (441), and the welding surface is in contact with the infrared heating hole (442). At this time, the movement distance H1 of the movable upper plate (22) and the movable lower plate (32) is displayed on the control screen (521). Find the movement parameters of the heating stage in the control screen (521) and input the movement distance H1 of the movable upper plate (22) and the movable lower plate (32). Step 1.4: Adjust the moving adjustment knob (524) to return the movable upper plate (22) and movable lower plate (32) to their initial positions. After completion, turn on the shaft switch. At this time, the heating mechanism (4) will move backward along the fixed plate moving mechanism (43) and stop after moving to the innermost end. Step 1.5: Then adjust the moving adjustment knob (524) to ensure that the drain cover (6) and the drain cover (7) can contact each other, record the moving distance H2 of the movable upper plate (22) and the movable lower plate (32), and then find the moving parameters of the welding stage on the control panel (521), and input the moving distance H2 of the movable upper plate (22) and the movable lower plate (32) respectively. Step 1.6: Locate the parameter interface in the control panel (521), select the temperature parameter, and then set the welding temperature using the temperature and time adjustment knob (522). Then select the heating time option and set the heating time using the temperature and time adjustment knob (522). Finally, select the welding time parameter in the control panel (521) and set the docking time using the temperature and time adjustment knob (522). At this point, the equipment initialization is complete. Step 2: Automatic control steps: Step 2.1: Ensure that the drain cover (6) and drain cap (7) are properly inserted to complete the position fixation; Step 2.2: Adjust the mode switching knob (523) on the control panel (521) to switch the mode to automatic mode; Step 2.3: Then turn on the welding switch (526). At this time, the movable upper plate (22) and the movable lower plate (32) will move according to the distance input in the step. At the same time, the heating mechanism (4) will move forward along the fixed plate (42) and the moving mechanism (43). After reaching the front end, it will stop and drive the installed drain cover (6) and drain cover (7) to move towards the heating mechanism (4). After reaching the set distance, they will contact the heating mechanism (4) and start infrared heating. After reaching the heating temperature and time set in the step, the heating mechanism (4) will move along the fixed plate (42). The mechanism (43) moves backward, and the movable upper plate (22) and movable lower plate (32) return to the origin according to the program. Then, they move according to the set welding movement distance to ensure that the heated drain cover (6) and drain cover (7) are in contact and docked. After the set welding time is reached, the pneumatic switch (512) stops automatically, the suction cup stops working, and the left limit module (341) and right limit module (342) work at the same time, driving the left limit plug (3415) and right limit plug (3422) to move to both sides. Then, the welded drain is manually removed. Step 2.4: Then, put the drain cover (6) and drain cover (7) back in, turn on the pneumatic switch (512), and then turn on the welding switch (526) to start welding the next drain.

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