High-precision hot melting welding device for plastic pipeline connection

Abstract

The invention relates to the technical field of plastic pipelines, and discloses a high-precision hot melting welding device for plastic pipeline connection, the device comprises a bottom plate, a hot melting device and a plastic pipe body, the periphery of the top of the bottom plate is fixedly connected with stand columns, and the tops of the stand columns are fixedly connected with the same top plate; the hot melting device is installed below the top plate, a positioning assembly is arranged on the top of the bottom plate, and auxiliary assemblies are symmetrically arranged on the two sides of the bottom plate. The positioning assembly comprises a double-end lead screw, the double-end lead screw is rotationally connected with the bottom plate, top grooves are symmetrically formed in the top of the bottom plate, the outer side of the double-end lead screw is symmetrically sleeved with sliding bases, arc-shaped clamping plates are symmetrically and rotationally connected to the tops of the sliding bases, and first lead screws are in threaded connection with the interiors of the arc-shaped clamping plates; the problems that impurities on the surface of a plastic pipeline are melted together with a pipe during hot melting, hot melting is possibly not closed, and the welding quality and the welding efficiency are affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pipes, in particular to a hot-melt welding device for connecting plastic pipes with high precision. Background Art

[0002] Plastic pipes have been widely used in various industries in recent years due to their advantages such as light weight, easy construction and installation, smooth inner wall, small pressure loss, good air tightness and long service life. When connecting plastic pipes, hot melt welding is generally used. Before welding, the surface of the welding position needs to be kept clean and the welding must be kept horizontal to make the connection stable.

[0003] For example, a plastic pipe hot-melt welding device with the announcement number CN220242432U includes a frame, the frame is connected to a double-headed screw by a bearing, two groups of vertical rods are connected by threads on the double-headed screw, the bottom ends of the two groups of vertical rods are fixed with arc plates, and the two groups of arc plates are connected to multiple groups of rollers by a connecting shaft. By rotating the double-headed screw, the multiple groups of rollers at the two groups of arc plates are clamped with the two groups of plastic pipes that fit together, and the whole can be quickly installed on the plastic pipe, and the whole is rotated on the plastic pipe, and the hot-melt welding head can perform hot-melt welding on the plastic pipe. However, before welding the plastic pipe, the welding surface of the pipe is not cleaned, and these surface impurities will melt together with the pipe during hot melting, which may cause the hot melting to be not airtight, leaving gaps, affecting the welding quality and welding efficiency.

[0004] Therefore, a hot-melt welding device for connecting plastic pipes with high precision is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a high-precision hot-melt welding device for connecting plastic pipes, so as to solve the problem that impurities on the surface of the plastic pipe will melt together with the pipe during hot-melting, which may cause the hot-melt to be not airtight, affecting the welding quality and welding efficiency.

[0006] To achieve the above object, the present invention provides the following technical solution: a hot-melt welding device for connecting plastic pipes with high precision, comprising a bottom plate, a hot-melt device and a plastic pipe body, wherein the top of the bottom plate is fixedly connected with columns around the top, and the top of the columns is fixedly connected with the same top plate; Also includes: The hot melt device is installed below the top plate, a positioning component is provided on the top of the bottom plate, and auxiliary components are symmetrically provided on both sides of the bottom plate; The positioning assembly includes a double-ended screw rod, which is rotatably connected to the bottom plate, a top groove is symmetrically opened on the top of the bottom plate, a sliding seat is symmetrically sleeved on the outer side of the double-ended screw rod, an arc-shaped clamping plate is symmetrically rotatably connected to the top of the sliding seat, a screw rod 1 is connected to the inner thread of the arc-shaped clamping plate, and one end of the screw rod 1 is rotatably connected to the positioning plate; The outer part of the arc-shaped clamping plate on one side is fixedly connected with a connecting strip, the side of the connecting strip close to the arc-shaped clamping plate is fixedly connected with an arc block, the top of the bottom plate is symmetrically fixedly connected with a lower arc plate, the inner side of the lower arc plate is rotatably connected with a lower cleaning block, the top of the bottom plate is also symmetrically rotatably connected with a screw rod 2, and the outer side of the screw rod 2 is threadedly connected with a fixing strip; An upper arc plate is fixedly connected to one side of the fixing bar, an upper cleaning block is rotatably connected to the inner side of the upper arc plate, a contact block is fixedly connected to the side of the upper cleaning block close to the second screw rod, and a spring 1 is installed between the contact block and the fixing bar; The auxiliary component comprises a main gear and a slave gear which are symmetrically arranged, and the main gear is located on both sides of the double-headed screw.

[0007] Preferably, the sliding seat fits against the inner wall of the top groove, the sliding seat is slidably connected to the top groove, the arc-shaped clamping plate is located on the outside of the bottom plate, two adjacent arc-shaped clamping plates are fixedly connected by bolts, and the positioning plate is located on the inner side of adjacent arc-shaped clamping plates.

[0008] By adopting the above technical solution, the operator rotates the double-headed screw counterclockwise to bring the two plastic pipe bodies closer together. The upper cleaning block and the lower cleaning block will rotate and scrape the plastic pipe body, and the plastic pipe body will slide in and scrape, thereby improving the cleaning and docking effect of the plastic pipe body.

[0009] Preferably, the arc blocks are evenly arranged, there are no less than three arc blocks, the lower cleaning block and the upper cleaning block are both semi-arc-shaped, a clearance groove is opened on the side of the upper arc plate close to the second screw rod, and the contact block is slidably connected to the clearance groove.

[0010] By adopting the above technical solution, the two screw rods 1 are screwed in synchronously, and the screw rods 1 drive the positioning plate to clamp the plastic tube body, so as to keep the two plastic tube bodies coaxial.

[0011] Preferably, the bottom end of the spring 1 is fixedly connected to the contact block, and the top end of the spring 1 is fixedly connected to the bottom of the fixing bar.

[0012] By adopting the above technical solution, spring 1 is used to assist the rotation and resetting of the upper cleaning block and the contact block.

[0013] Preferably, the upper cleaning block is symmetrically fixedly connected to limit blocks on both sides, and there are no less than four limit blocks. The inner sides of the upper arc plate and the lower arc plate are symmetrically provided with limit grooves, and the limit blocks are slidably connected to the limit grooves.

[0014] By adopting the above technical solution, the limiting block slides in the limiting groove, so that the upper cleaning block will not fall out of the upper arc plate.

[0015] Preferably, the main gear is fixedly connected to the double-headed screw, and the slave gear is symmetrically rotatably installed on both sides of the base plate, the main gear is meshingly connected to the slave gear, and the two sides of the base plate are symmetrically fixedly connected to the limit frame, the inner side of the limit frame is slidably connected with a vertical rack, and the vertical rack is meshingly connected to the slave gear, the main gear is located outside the base plate, the diameter of the slave gear is larger than the diameter of the main gear, and the top of the vertical rack is fixedly connected to spring 2, and the top of the spring 2 is fixedly connected to the bottom of the top plate.

[0016] By adopting the above technical solution, when the double-headed screw rotates counterclockwise, it will drive the two main gears on the outside to rotate counterclockwise, and the main gear will drive the slave gear to rotate clockwise, and the slave gear will drive the meshing vertical rack to move downward, and the vertical rack stretches spring 2 and drives the connecting rod to move downward.

[0017] Preferably, a connecting rod is fixedly connected to one side of the vertical rack, a horizontal bar is fixedly connected to the back side of the hot melt device, a side rod is fixedly connected to the bottom of the connecting rod close to the horizontal bar, the side rod is slidably connected to the horizontal bar, and a spring three is sleeved on the outer side of the upper part of the side rod.

[0018] By adopting the above technical solution, the connecting rod can drive the horizontal bar to move downward through the side rod and spring three, the horizontal bar drives the hot melt device to descend, and the hot melt device drives the auxiliary rod and the top block to descend.

[0019] Preferably, the top end of the spring three is fixedly connected to the connecting rod, the bottom end of the spring three is fixedly connected to the horizontal bar, the bottom of the side rod is fixedly connected with a stop block, the top of the hot melt device is symmetrically fixedly connected with an auxiliary rod, and the top ends of the two auxiliary rods are fixedly connected with the same top block.

[0020] By adopting the above technical solution, when the top block is pressed against the top plate, the horizontal bar and the hot melt device no longer drop, and the hot melt sheet of the hot melt device is coaxial with the two plastic tube bodies.

[0021] Preferably, the top block is located above the top plate, the auxiliary rod is slidably connected to the top plate, a spring four is sleeved on the outer side of the lower part of the auxiliary rod, the two ends of the spring four are respectively fixedly connected to the top plate and the hot melt device, and the elastic coefficient of the spring three is greater than the elastic coefficient of the spring four.

[0022] By adopting the above technical solution, when the hot melt device does not descend, the vertical rack continues to descend and drives the horizontal bar to compress the spring three, which will not affect the position of the hot melt device until the two plastic tubes are against the hot melt sheet of the hot melt device.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. A positioning component is provided. The operator keeps the upper arc plate stationary with one hand and rotates the screw rod 2 with the other hand to move the fixing bar and the upper arc plate downward until the upper arc plate is pressed tightly against the lower arc plate. At this time, the upper cleaning block is tightly attached to the lower cleaning block, and the two plastic tube bodies are respectively placed inside the arc-shaped clamping plates on both sides, and one end of the plastic tube body is close to the upper cleaning block. The two adjacent arc clamping plates are fixed by bolts, and then the two screw rods 1 are synchronously screwed in. The screw rod 1 drives the positioning plate to clamp the plastic tube body, so as to keep the two plastic tube bodies coaxial for accurate docking. After positioning, the operator rotates the double-headed screw rod counterclockwise, and the sliding seat will only move in a straight line, so that the sliding seat slides on the inner side of the top groove, and the sliding seat drives the arc clamping plate and the plastic tube body to move, thereby realizing the approach of the two plastic tube bodies, and the plastic tube body slides between the upper cleaning block and the lower cleaning block, and the upper cleaning block and the lower cleaning block are aligned with the plastic tube body. The surface of the welding end is cleaned and decontaminated, and the movement of the arc clamping plate will also drive the connection bar to move, and the connection bar drives the arc block to move. When the arc surface of the arc block contacts the contact block, the contact block is squeezed and rotated, and the contact block compresses spring 1. The give way groove is used to give way to the contact block, and the contact block drives the upper cleaning block to rotate. The upper cleaning block and the lower cleaning block rotate. When the arc block is separated from the contact block, the elastic force of spring 1 drives the contact block to reset, so that the upper cleaning block and the lower cleaning block rotate, and the upper cleaning block and the lower cleaning block are realized. Rotational scraping of the plastic pipe body by the upper cleaning block and the lower cleaning block is achieved, and the plastic pipe body is scraped by sliding in, and the feeding of the plastic pipe body is used to improve the cleaning effect of the surface of the welding end of the plastic pipe body, reduce the influence of dirt on hot-melt welding, and solve the problem that impurities on the surface of the plastic pipe will melt together with the pipe during hot melting, which may cause the hot melting to be not airtight, affecting the welding quality and welding efficiency; 2. An auxiliary component is provided. When the double-headed screw rotates counterclockwise, it will drive the two main gears on the outside to rotate counterclockwise, and the main gear drives the slave gear to rotate clockwise, and the slave gear drives the meshing vertical rack to move downward, and the limit frame limits the vertical rack, and the vertical rack stretches spring 2 and drives the connecting rod to move downward. Since the elastic coefficient of spring 3 is much larger than the elastic coefficient of spring 4, the hot melt device can remain stationary at the beginning, and the connecting rod can drive the horizontal bar to move downward through the side bar and spring 3, and the horizontal bar drives the hot melt device to descend, and the hot melt device drives the auxiliary rod and the top block to descend. The hot melt device stretches spring 4. When the top block is pressed against the top plate, the horizontal bar and the hot melt device no longer descend, and the hot melt sheet of the hot melt device is in contact with the two plastic The tube bodies are coaxial. At this time, the vertical rack continues to descend, which will drive the horizontal bar to compress spring three, and will not affect the position of the hot melt device, until the last two plastic tube bodies are against the hot melt plate of the hot melt device. Then the operator releases the bolt positioning of the arc clamp. At this time, the positioning plate will not drive the plastic tube body to move. Then, the double-headed screw is rotated clockwise to move the hot melt device upward, and then the plastic tube bodies on both sides are pulled and squeezed close to the docking. The upper cleaning block and the lower cleaning block play a positioning role. After welding, reverse screw two to keep the upper arc plate and the upper cleaning block moving vertically upward. At this time, the welded plastic tube body can be taken out, and the hot melt device can be moved downward synchronously when the plastic tube body is fed, which improves the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the first three-dimensional overall structure of the present invention; Figure 2 It is a schematic diagram of a second three-dimensional overall structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the bottom plate of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 This is a schematic diagram of the installation structure of the arc-shaped splint of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 For the present invention Figure 5 The enlarged structural diagram at C in the middle; Figure 8 This is a schematic diagram of taking out the plastic tube body of the present invention; Fig. 9 It is a schematic diagram of the structure of the upper arc plate and the lower arc plate of the present invention; Fig.10 This is a schematic diagram of the horizontal bar installation structure of the present invention; Fig.11 For the present invention Fig.10 The enlarged structural diagram at D in the middle; Fig.12It is a schematic diagram of hot melting of the plastic pipe body of the present invention.

[0025] In the figure: 1, bottom plate; 2, column; 3, top plate; 4, hot melt device; 5, positioning assembly; 51, double-headed screw; 52, top groove; 53, sliding seat; 54, arc clamping plate; 55, screw rod 1; 56, positioning plate; 57, connecting strip; 58, arc block; 59, lower arc plate; 510, lower cleaning block; 511, screw rod 2; 512, fixing strip; 513, upper arc plate; 514, Upper cleaning block; 515, contact block; 516, give way groove; 517, spring one; 518, limit block; 6, auxiliary component; 61, main gear; 62, slave gear; 63, limit frame; 64, vertical rack; 65, spring two; 66, connecting rod; 67, horizontal bar; 68, side rod; 69, spring three; 610, auxiliary rod; 611, spring four; 612, top block; 7, plastic tube body. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 12 The present invention provides a technical solution: a hot-melt welding device for connecting plastic pipes with high precision, comprising a bottom plate 1, a hot-melt device 4 and a plastic pipe body 7, wherein columns 2 are fixedly connected to the top of the bottom plate 1, and the top of the columns 2 is fixedly connected to the same top plate 3.

[0028] The hot melt device 4 is installed below the top plate 3 .

[0029] A positioning assembly 5 is provided on the top of the base plate 1, and the positioning assembly 5 includes a double-headed screw rod 51, which is rotatably connected to the base plate 1, and a top groove 52 is symmetrically opened on the top of the base plate 1. A sliding seat 53 is symmetrically sleeved on the outer side of the double-headed screw rod 51, and an arc-shaped clamping plate 54 is symmetrically rotatably connected to the top of the sliding seat 53. The internal thread of the arc-shaped clamping plate 54 is connected to a screw rod 55, and one end of the screw rod 55 is rotatably connected to a positioning plate 56.

[0030] The sliding seat 53 fits the inner wall of the top groove 52 , and the sliding seat 53 is slidably connected to the top groove 52 . The arc clamping plate 54 is located on the outside of the bottom plate 1 . Two adjacent arc clamping plates 54 are fixedly connected by bolts. The positioning plate 56 is located on the inner side of the adjacent arc clamping plates 54 .

[0031] The outside of one side arc-shaped clamping plate 54 is fixedly connected with a connecting strip 57, and the side of the connecting strip 57 close to the arc-shaped clamping plate 54 is fixedly connected with an arc block 58. The top of the bottom plate 1 is symmetrically fixedly connected with a lower arc plate 59, and the inner side of the lower arc plate 59 is rotatably connected with a lower cleaning block 510. The top of the bottom plate 1 is also symmetrically rotatably connected with a screw rod 511, and the outer side of the screw rod 511 is threadedly connected with a fixing strip 512.

[0032] An upper arc plate 513 is fixedly connected to one side of the fixed bar 512, an upper cleaning block 514 is rotatably connected to the inner side of the upper arc plate 513, a contact block 515 is fixedly connected to one side of the upper cleaning block 514 close to the second screw rod 511, and a spring 1 517 is installed between the contact block 515 and the fixed bar 512.

[0033] The arc blocks 58 are evenly arranged, and there are no less than three arc blocks 58. The lower cleaning block 510 and the upper cleaning block 514 are both semi-arc-shaped. A clearance groove 516 is opened on one side of the upper arc plate 513 close to the second screw rod 511, and the contact block 515 is slidably connected to the clearance groove 516.

[0034] The bottom end of spring 1 517 is fixedly connected to the contact block 515 , and the top end of spring 1 517 is fixedly connected to the bottom of the fixing bar 512 .

[0035] The upper cleaning block 514 is symmetrically fixedly connected to the limiting blocks 518 on both sides, and there are no less than four limiting blocks 518. The inner sides of the upper arc plate 513 and the lower arc plate 59 are symmetrically provided with limiting grooves, and the limiting blocks 518 are slidably connected to the limiting grooves.

[0036] Embodiment 1: Figure 1-Figure 9 As shown, the operator holds the upper arc plate 513 still with one hand and rotates the screw rod 2 511 with the other hand, so that the fixing bar 512 and the upper arc plate 513 move downward until the upper arc plate 513 is pressed against the lower arc plate 59. At this time, the upper cleaning block 514 is tightly attached to the lower cleaning block 510, and the two plastic tube bodies 7 are respectively placed inside the arc-shaped clamping plates 54 on both sides, and one end of the plastic tube body 7 is close to the upper cleaning block 514. The two adjacent arc-shaped clamping plates 54 are fixed by bolts, and then the two screw rods 1 55 are screwed in synchronously. The screw rod 1 55 drives the positioning plate 56 to clamp the plastic tube body 7, so as to keep the two plastic tube bodies 7 coaxial.

[0037] After positioning, the operator rotates the double-headed screw 51 counterclockwise, and the sliding seat 53 will only move in a straight line, so that the sliding seat 53 slides on the inner side of the top groove 52, and the sliding seat 53 drives the arc clamping plate 54 and the plastic tube body 7 to move, so that the two plastic tube bodies 7 are close to each other, and the plastic tube body 7 slides between the upper cleaning block 514 and the lower cleaning block 510. The upper cleaning block 514 and the lower cleaning block 510 clean and decontaminate the welding end surface of the plastic tube body 7, and the movement of the arc clamping plate 54 will also drive the connecting strip 57 to move, and the connecting strip 57 drives the arc block 58 to move. When the arc surface of the arc block 58 contacts the contact block 515, the contact block 515 is squeezed and rotated, and the contact block 515 compresses the spring 1 517, and the make way groove 516 is used to make way for the contact block 515.

[0038] The contact block 515 drives the upper cleaning block 514 to rotate, and the upper cleaning block 514 and the lower cleaning block 510 rotate. When the arc block 58 is separated from the contact block 515, the elastic force of the spring 1 517 drives the contact block 515 to reset, so that the upper cleaning block 514 and the lower cleaning block 510 rotate, and the upper cleaning block 514 and the lower cleaning block 510 are realized. Rotational scraping of the plastic pipe body 7 is achieved, and the sliding scraping of the plastic pipe body 7 is coordinated. The feeding of the plastic pipe body 7 is utilized to improve the cleaning effect of the welding end surface of the plastic pipe body 7, reduce the influence of dirt on hot-melt welding, and solve the problem that impurities on the surface of the plastic pipe will melt together with the pipe during hot melting, which may cause the hot melting to be not airtight, affecting the welding quality and welding efficiency.

[0039] Auxiliary components 6 are symmetrically arranged on both sides of the bottom plate 1 . The auxiliary components 6 include a main gear 61 and a slave gear 62 symmetrically arranged. The main gear 61 is located on both sides of the double-headed screw 51 .

[0040] The main gear 61 is fixedly connected to the double-headed screw rod 51, and the slave gear 62 is symmetrically rotatably installed on both sides of the base plate 1. The main gear 61 is meshed with the slave gear 62. The two sides of the base plate 1 are symmetrically fixedly connected to the limit frame 63. The inner side of the limit frame 63 is slidably connected with a vertical rack 64. The vertical rack 64 is meshed with the slave gear 62. The main gear 61 is located outside the base plate 1. The diameter of the slave gear 62 is larger than the diameter of the main gear 61. The top of the vertical rack 64 is fixedly connected with a spring 2 65. The top of the spring 2 65 is fixedly connected to the bottom of the top plate 3.

[0041] A connecting rod 66 is fixedly connected to one side of the vertical rack 64, a horizontal bar 67 is fixedly connected to the back side of the hot melt device 4, a side rod 68 is fixedly connected to the bottom of the connecting rod 66 close to the horizontal bar 67, the side rod 68 is slidably connected to the horizontal bar 67, and a spring three 69 is sleeved on the outer side of the upper part of the side rod 68.

[0042] The top end of spring three 69 is fixedly connected to the connecting rod 66, the bottom end of spring three 69 is fixedly connected to the horizontal bar 67, the bottom of the side rod 68 is fixedly connected with a stopper, the top of the hot melt device 4 is symmetrically fixedly connected with an auxiliary rod 610, and the top ends of the two auxiliary rods 610 are fixedly connected with the same top block 612.

[0043] The top block 612 is located above the top plate 3, the auxiliary rod 610 is slidably connected to the top plate 3, a spring four 611 is sleeved on the outer side of the lower part of the auxiliary rod 610, and the two ends of the spring four 611 are respectively fixedly connected to the top plate 3 and the hot melt device 4, and the elastic coefficient of the spring three 69 is greater than the elastic coefficient of the spring four 611.

[0044] Embodiment 2: Figure 10-12 As shown, when the double-headed screw 51 rotates counterclockwise, it will drive the two main gears 61 on the outside to rotate counterclockwise, and the main gear 61 drives the slave gear 62 to rotate clockwise, and the slave gear 62 drives the meshing vertical rack 64 to move downward, and the limit frame 63 limits the vertical rack 64, and the vertical rack 64 stretches the spring two 65 and drives the connecting rod 66 to move downward. Since the elastic coefficient of the spring three 69 is much larger than the elastic coefficient of the spring four 611, the hot melt device 4 can remain stationary at the beginning, and the connecting rod 66 can drive the horizontal bar 67 to move downward through the side bar 68 and the spring three 69, and the horizontal bar 67 drives the hot melt device 4 to descend, and the hot melt device 4 drives the auxiliary rod 610 and the top block 612 to descend, and the hot melt device 4 stretches the spring four 611.

[0045] When the top block 612 is pressed against the top plate 3, the horizontal bar 67 and the hot-melt device 4 no longer descend, and the hot-melt sheet of the hot-melt device 4 is coaxial with the two plastic tube bodies 7. At this time, the vertical rack 64 continues to descend, which will drive the horizontal bar 67 to compress the spring three 69, and will not affect the position of the hot-melt device 4, until the last two plastic tube bodies 7 are pressed against the hot-melt sheet of the hot-melt device 4. Then the operator releases the bolt positioning of the arc clamp 54. At this time, the positioning plate 56 will not drive the plastic tube body 7 to move, and then rotates the double-headed screw 51 clockwise to move the hot-melt device 4, and then pulls the plastic tube bodies 7 on both sides to squeeze and close them for docking. The upper cleaning block 514 and the lower cleaning block 510 play a positioning role, which improves the accuracy of docking.

[0046] After welding, the screw rod 511 is reversed to keep the upper arc plate 513 and the upper cleaning block 514 moving vertically upward. At this time, the welded plastic tube body 7 can be taken out, and the hot melt device 4 can be moved downward synchronously when the plastic tube body 7 is fed, thereby improving the flexibility of use.

[0047] Working principle: When using the device, first, Figure 1-Figure 12As shown, the operator places the two plastic tube bodies 7 inside the arc-shaped clamping plates 54 on both sides and fixes them, and then simultaneously screws in two screw rods 55, which drive the positioning plate 56 to clamp the plastic tube body 7. After positioning, the operator rotates the double-headed screw rod 51 counterclockwise to achieve the approach of the two plastic tube bodies 7. The upper cleaning block 514 and the lower cleaning block 510 clean and decontaminate the surface of the welding end of the plastic tube body 7, and the upper cleaning block 514 and the lower cleaning block 510 can realize the rotation and scraping of the plastic tube body 7. At the same time as the double-headed screw rod 51 rotates counterclockwise When the hot-melt device 4 is welded, the horizontal bar 67 drives the hot-melt device 4 to descend. When the hot-melt piece of the hot-melt device 4 is coaxial with the two plastic tube bodies 7, the position remains unchanged. Then the two plastic tube bodies 7 are pressed against the hot-melt piece of the hot-melt device 4. Then the operator releases the bolt positioning of the arc clamping plate 54 and rotates the double-headed screw rod 51 clockwise to move the hot-melt device 4 upward. Then the plastic tube bodies 7 on both sides are pulled to squeeze and connect. After welding, the screw rod 511 is reversed to keep the upper arc plate 513 and the upper cleaning block 514 moving vertically upward. At this time, the operator can take out the welded plastic tube body 7.

[0048] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot-melt welding device for connecting plastic pipes with high precision, comprising a bottom plate (1), a hot-melt device (4) and a plastic pipe body (7), wherein the top of the bottom plate (1) is fixedly connected to columns (2) on all sides, and the top of the columns (2) is fixedly connected to the same top plate (3); It is characterized in that Also includes: The hot melt device (4) is installed below the top plate (3), a positioning component (5) is provided on the top of the bottom plate (1), and auxiliary components (6) are symmetrically provided on both sides of the bottom plate (1); The positioning assembly (5) comprises a double-ended screw (51), the double-ended screw (51) is rotatably connected to the bottom plate (1), a top groove (52) is symmetrically provided on the top of the bottom plate (1), a sliding seat (53) is symmetrically sleeved on the outer side of the double-ended screw (51), an arc-shaped clamping plate (54) is symmetrically rotatably connected to the top of the sliding seat (53), a screw rod (55) is internally threadedly connected to the inside of the arc-shaped clamping plate (54), and one end of the screw rod (55) is rotatably connected to the positioning plate (56); The arc-shaped clamping plate (54) on one side is fixedly connected to the outside with a connecting strip (57), and the connecting strip (57) is fixedly connected to an arc block (58) on the side close to the arc-shaped clamping plate (54). The top of the bottom plate (1) is symmetrically fixedly connected to a lower arc plate (59), and the inner side of the lower arc plate (59) is rotatably connected to a lower cleaning block (510). The top of the bottom plate (1) is also symmetrically rotatably connected to a second screw rod (511), and the outer side of the second screw rod (511) is threadedly connected to a fixing strip (512); An upper arc plate (513) is fixedly connected to one side of the fixing bar (512), an upper cleaning block (514) is rotatably connected to the inner side of the upper arc plate (513), a contact block (515) is fixedly connected to the side of the upper cleaning block (514) close to the second screw rod (511), and a spring 1 (517) is installed between the contact block (515) and the fixing bar (512); The auxiliary component (6) comprises a main gear (61) and a slave gear (62) which are symmetrically arranged, and the main gear (61) is located on both sides of the double-ended screw (51).

2. A hot-melt welding device for connecting plastic pipes with high precision according to claim 1, characterized in that: The sliding seat (53) is fitted with the inner wall of the top groove (52), and the sliding seat (53) is slidably connected to the top groove (52). The arc-shaped clamping plate (54) is located on the outer side of the bottom plate (1), and two adjacent arc-shaped clamping plates (54) are fixedly connected by bolts. The positioning plate (56) is located on the inner side of the adjacent arc-shaped clamping plates (54).

3. A hot-melt welding device for connecting plastic pipes with high precision according to claim 2, characterized in that: The arc blocks (58) are evenly arranged, and there are no less than three arc blocks (58). The lower cleaning block (510) and the upper cleaning block (514) are both arranged in a semi-arc shape. A clearance groove (516) is provided on a side of the upper arc plate (513) close to the second screw rod (511), and the contact block (515) is slidably connected to the clearance groove (516).

4. A hot-melt welding device for connecting plastic pipes with high precision according to claim 1, characterized in that: The bottom end of the spring one (517) is fixedly connected to the contact block (515), and the top end of the spring one (517) is fixedly connected to the bottom of the fixing strip (512).

5. A hot-melt welding device for connecting plastic pipes with high precision according to claim 4, characterized in that: Limiting blocks (518) are symmetrically fixedly connected to both sides of the upper cleaning block (514), and there are no less than four limiting blocks (518). Limiting grooves are symmetrically provided on the inner sides of the upper arc plate (513) and the lower arc plate (59), and the limiting blocks (518) are slidably connected to the limiting grooves.

6. A hot-melt welding device for connecting plastic pipes with high precision according to claim 1, characterized in that: The main gear (61) is fixedly connected to the double-headed screw (51), and the slave gear (62) is symmetrically rotatably mounted on both sides of the bottom plate (1). The main gear (61) is meshingly connected to the slave gear (62). The two sides of the bottom plate (1) are symmetrically fixedly connected to a limit frame (63), and the inner side of the limit frame (63) is slidably connected to a vertical rack (64), and the vertical rack (64) is meshingly connected to the slave gear (62). The main gear (61) is located outside the bottom plate (1), and the diameter of the slave gear (62) is larger than the diameter of the main gear (61). The top of the vertical rack (64) is fixedly connected to a second spring (65), and the top of the second spring (65) is fixedly connected to the bottom of the top plate (3).

7. A high-precision hot-melt welding device for connecting plastic pipes according to claim 6, characterized in that: A connecting rod (66) is fixedly connected to one side of the vertical rack (64), a horizontal bar (67) is fixedly connected to the back side of the hot melt device (4), a side rod (68) is fixedly connected to the bottom of the connecting rod (66) near the horizontal bar (67), the side rod (68) is slidably connected to the horizontal bar (67), and a spring three (69) is sleeved on the outer side of the upper part of the side rod (68).

8. A high-precision hot-melt welding device for connecting plastic pipes according to claim 7, characterized in that: The top end of the spring three (69) is fixedly connected to the connecting rod (66), the bottom end of the spring three (69) is fixedly connected to the horizontal bar (67), the bottom of the side rod (68) is fixedly connected to a stopper, the top of the hot melt device (4) is symmetrically fixedly connected to an auxiliary rod (610), and the top ends of the two auxiliary rods (610) are fixedly connected to the same top block (612).

9. A hot-melt welding device for connecting plastic pipes with high precision according to claim 8, characterized in that: The top block (612) is located above the top plate (3), the auxiliary rod (610) is slidably connected to the top plate (3), a spring four (611) is sleeved on the outer side of the lower part of the auxiliary rod (610), the two ends of the spring four (611) are respectively fixedly connected to the top plate (3) and the hot melt device (4), and the elastic coefficient of the spring three (69) is greater than the elastic coefficient of the spring four (611).

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