Hot melting welding device for MPP pipe machining

Abstract

The utility model relates to the field of MPP pipe processing equipment, and discloses a hot melting welding device for MPP pipe processing, which comprises a processing box, the upper end of the processing box is fixedly connected with a glass plate, the outer side surface of the processing box is provided with a feed port, the processing box is internally provided with a hot melting piece, the inner wall surface of the feed port is provided with an annular groove, and the inner wall surface of the annular groove is provided with an annular groove. An annular groove is formed in the machining box, an annular air bag is fixedly connected into the annular groove, an inflation unit is arranged on the outer side of the annular air bag, a turnover door is arranged in the machining box, a turnover unit is arranged on the outer side of the turnover door, a sliding groove is formed in the inner bottom face of the machining box, and a sliding plate is slidably connected into the sliding groove. According to the sealing device, through the cooperation of the annular groove, the annular air bag, the inflation unit, the turnover door and the turnover unit, the gap between the feeding port and the pipe and the feeding port can be sealed in the machining process and after machining.

Description

Technical Field

[0001] The utility model relates to the field of MPP pipe processing equipment, in particular to a hot melt welding device used for MPP pipe processing. Background Art

[0002] MPP pipes are commonly used in the power industry and are widely used in various fields due to their excellent quality. With the increase in usage scenarios, special-shaped MPP pipes are gradually needed to adapt to different needs. When the pipe length is insufficient, two pipes need to be hot-melt welded using a hot-melt welding device to extend the pipe length and adapt to different reference scenarios.

[0003] After searching, Chinese patent announcement number: CN115056493B discloses a hot melt welding device for the production of special-shaped MPP pipes, including a movable hot melt part that can be easily moved to both sides to heat the two ends of the anchor separately. The first heating of the end can fix the anchor in the MPP pipe on one side, and the second heating of the other end can fix the other end of the anchor in the MPP pipe on the other side. Finally, the middle part of the anchor is heated to achieve the final alignment and touch of the MPP pipes on both sides to complete the welding.

[0004] However, during actual use of the above-mentioned hot-melt welding device, the feed ports at both ends of the frame for pipes to enter are prone to gaps with the pipes due to production precision issues and wear and tear. As a result, dust and impurities may enter the frame through the gaps during processing and adhere to the hot-melt position, affecting the hot-melt welding effect. At the same time, the open structure at both ends of the frame may also cause dust and impurities to enter and accumulate, affecting the hot-melt welding effect. Therefore, a hot-melt welding device for MPP pipe processing is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a hot melt welding device for MPP pipe processing, which aims to improve the problem in the prior art that dust and impurities can easily enter the frame through the feed ports at the left and right ends of the frame and adhere to the hot melt position, thereby affecting the hot melt welding effect.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a hot melt welding device for MPP tube processing, comprising a processing box, a glass plate is fixedly connected to the upper end of the processing box, a feed port is provided on the outer surface of the processing box, a hot melt part is provided inside the processing box, an annular groove is provided on the inner wall surface of the feed port, an annular airbag is fixedly connected to the inside of the annular groove, an inflation unit is provided on the outside of the annular airbag, a flip door is provided inside the processing box, and a flip unit is provided on the outside of the flip door.

[0007] As a further description of the above technical solution:

[0008] A slide groove is provided on the inner bottom surface of the processing box, and a slide is slidably connected to the inside of the slide groove. A motor is fixedly connected to the right surface of the processing box, and the left output end of the motor passes through the processing box. A screw is fixedly connected to the left output end of the motor, and the left end of the screw passes through the processing box and the slide. The left end of the screw is rotatably connected to the left inner wall surface of the slide groove, and a limiting rod is fixedly connected to the inside of the processing box.

[0009] As a further description of the above technical solution:

[0010] The inflation unit includes an air pump, which is fixedly connected to the upper end of the processing box. The side output end of the air pump is fixedly connected to a connecting pipe. The end of the connecting pipe away from the air pump passes through the processing box. The end of the connecting pipe away from the air pump is fixedly connected to the upper end of the annular airbag.

[0011] As a further description of the above technical solution:

[0012] The flip unit includes a fixed cylinder, which is fixedly connected to the end of the flip door away from the feed port. A fixed rod is sleeved inside the fixed cylinder, the bottom end of the fixed rod is fixedly connected to the limiting plate, the upper end of the fixed rod is fixedly connected to the fixed plate, and the outer surface of the fixed rod is sleeved with a torsion spring.

[0013] As a further description of the above technical solution:

[0014] The outer ring surface of the annular airbag is fixedly connected to the inner outer wall surface of the annular groove.

[0015] As a further description of the above technical solution:

[0016] The upper surface of the slide plate is fixedly connected to the bottom surface of the hot melt component, and the limiting rod passes through the slide plate.

[0017] As a further description of the above technical solution:

[0018] The outer wall surfaces of the limiting plate and the fixing plate are fixedly connected to the inner wall surface of the processing box, and the upper surface of the limiting plate is in contact with the bottom surface of the fixing cylinder.

[0019] As a further description of the above technical solution:

[0020] The upper end of the torsion spring is fixedly connected to the bottom surface of the fixing plate, and the bottom end of the torsion spring is fixedly connected to the upper surface of the fixing cylinder.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by cooperating with the annular groove, annular airbag, inflation unit, flip door and flip unit, the gap between the feed port and the pipe and the feed port can be sealed during and after processing, thereby preventing heat from being lost through the gap or the feed port, resulting in the need for additional heat for preheating during the next hot melt welding, and preventing dust and impurities from entering the processing box through the gap and affecting the hot melt welding effect.

[0023] 2. In the present invention, the cooperation of the slide, slide plate, motor, screw and limit rod can drive the hot melt part to move in the left and right directions, and the hot melt position of the pipe can be adjusted, and then it can be adjusted according to the entry depth of the pipes on both sides, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a hot melt welding device for MPP pipe processing proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of a frontal cross-sectional view of a hot melt welding device for MPP pipe processing proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of a flip door and a flip unit of a hot melt welding device for MPP pipe processing proposed in the present invention;

[0027] Figure 4 This utility model proposes a hot melt welding device for MPP pipe processing Figure 3 Schematic diagram of part B;

[0028] Figure 5 This utility model proposes a hot melt welding device for MPP pipe processing Figure 2 Schematic diagram of part A.

[0029] Legend:

[0030] 1. Processing box; 2. Glass plate; 3. Feed port; 4. Hot melt component; 5. Annular groove; 6. Annular airbag; 61. Air pump; 62. Connecting pipe; 7. Flip door; 71. Fixed cylinder; 72. Fixed rod; 73. Limit plate; 74. Fixed plate; 75. Torsion spring; 8. Slide; 9. Slide plate; 10. Motor; 11. Screw; 12. Limit rod. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: a hot melt welding device for MPP tube processing, comprising a processing box 1, a glass plate 2 is fixedly connected to the upper end of the processing box 1, and a worker can penetrate the processing situation inside the processing box 1 through the glass plate 2. A feed port 3 is provided on the outer surface of the processing box 1, and the number of the feed ports 3 is two, which are respectively opened on the left and right side surfaces of the processing box 1. A hot melt part 4 is provided inside the processing box 1, and the MMP pipe can be inserted into the hot melt part 4 through the feed ports 3 on both sides for hot melt welding.

[0033] Reference Figure 2-Figure 4 The inner wall surface of the feed port 3 is provided with an annular groove 5, and the inside of the annular groove 5 is fixedly connected with an annular airbag 6. The outer ring surface of the annular airbag 6 is fixedly connected to the inner outer wall surface of the annular groove 5. The outer wall of the annular airbag 6 and the inner wall of the annular groove 5 fit together. When the annular airbag 6 is inflated, the gap between the pipe and the feed port 3 can be filled. The outer side of the annular airbag 6 adopts a high-purity composite aluminum foil with a nano-coating, which can effectively isolate heat and prevent heat loss. An inflation unit is provided on the outside of the annular airbag 6, and the inflation unit includes an air pump 61. The air pump 61 is fixedly connected to the upper end of the processing box 1. The side output end of the air pump 61 is fixedly connected to a connecting pipe 62, and the end of the connecting pipe 62 away from the air pump 61 passes through the processing box 1, and the end of the connecting pipe 62 away from the air pump 61 is fixedly connected to the upper end of the annular airbag 6. When the air pump 61 is started, air can be inflated into the inside of the annular airbag 6 through the connecting pipe 62, so that the annular airbag 6 can expand to seal the gap between the feed port 3 and the pipe, thereby avoiding heat loss through the gap during the hot melt process and causing heat waste, and at the same time, it can prevent external dust and impurities from entering the processing box 1 through the gap and attaching to the welding point, thereby affecting the hot melt welding effect.

[0034] The interior of the processing box 1 is provided with a flip door 7, and the number of the flip doors 7 is four, and each two form a group. The two groups of flip doors 7 are respectively arranged on the inner wall surfaces of the left and right sides of the processing box 1. The two flip doors 7 in each group of flip doors 7 are symmetrically arranged in a mirror structure, which can seal the feed port 3. A flip unit is provided on the outside of the flip door 7, and the flip unit includes a fixed cylinder 71. The fixed cylinder 71 is fixedly connected to the end of the flip door 7 away from the feed port 3. When the flip door 7 rotates, the fixed cylinder 71 can be driven to move synchronously. A fixed rod 72 is sleeved on the inside of the fixed cylinder 71. The fixed cylinder 71 and the flip door 7 can rotate around the fixed rod 72. The bottom end of the fixed rod 72 is fixedly connected to the limiting plate 73. When the locking cam 75 is in the unlocking state, the locking cam 73 is locked and the locking cam 73 is in the unlocking state, so the winch 72 is locked and the lock 73 is in the unlocking state.

[0035] When the pipe enters the processing box 1 through the feed port 3, the flip door 7 will be flipped to open. At this time, the torsion spring 75 will be rotated to generate torque. When the hot melt welding is completed and the pipe exits the processing box 1, the squeezing of the flip door 7 will be released, so that the flip door 7 will automatically flip and reset under the action of the torque of the torsion spring 75, and the sealing of the feed port 3 will be restored, thereby avoiding heat loss inside the processing box 1 and preventing external dust and impurities from entering the processing box 1, which will affect the subsequent hot melt processing effect.

[0036] Reference Figure 2 and Figure 5The bottom surface of the inner part of the processing box 1 is provided with a slide groove 8, and the inner sliding connection of the slide groove 8 is provided with a slide plate 9. The slide plate 9 can perform linear motion in the left and right directions inside the slide groove 8. The upper surface of the slide plate 9 is fixedly connected to the bottom surface of the hot melt part 4. When the slide plate 9 moves, the hot melt part 4 can be driven to move synchronously. The right surface of the processing box 1 is fixedly connected with a motor 10. The left output end of the motor 10 passes through the processing box 1. The left output end of the motor 10 is fixedly connected with a screw 11. When the motor 10 is started, it can drive the screw 11 to rotate. The left end of the screw 11 passes through the processing box 1 and the slide plate 9. The screw 1 The left end of 1 is rotatably connected to the left inner wall surface of the slide 8, and the screw 11 is threadedly connected to the slide 9. When the motor 10 starts to drive the screw 11 to rotate, the slide 9 can be driven to move synchronously. The internal fixed connection of the processing box 1 is provided with a limit rod 12, which passes through the slide 9. The limit rod 12 can guide and limit the movement of the slide 9, so that the slide 9 can only move linearly in the left and right directions, and then when the motor 10 is started, it can drive the slide 9 to move linearly in the left and right directions, so that the hot melt part 4 can be adjusted according to the welding position of the pipe, thereby improving the adaptability of the device.

[0037] Working principle: When the pipe enters the processing box 1 through the feed port 3, the flip door 7 will be squeezed, so that the flip door 7 will open automatically. When the pipes on both sides are fitted together, the motor 10 can be started to drive the hot melt part 4 to move to the welding position. Then the air pump 61 can be started to inflate the annular airbag 6 through the connecting pipe 62, so that the annular airbag 6 expands and seals the gap between the feed port 3 and the pipe to prevent the heat inside the processing box 1 from being lost through the gap, and at the same time prevent dust and impurities from entering the processing box 1 through the gap and affecting the hot melt welding effect. After the pipe exits the processing box 1, the flip door 7 will automatically reset under the torque of the torsion spring 75 to seal the feed port 3, prevent dust and impurities from entering the processing box 1, and avoid heat loss, so that the processing box 1 maintains a certain temperature to preheat the next hot melt and reduce heat loss.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hot melt welding device for MPP pipe processing, comprising a processing box (1), characterized in that: The upper end of the processing box (1) is fixedly connected to a glass plate (2), the outer surface of the processing box (1) is provided with a feed port (3), the interior of the processing box (1) is provided with a hot melt component (4), the inner wall surface of the feed port (3) is provided with an annular groove (5), the interior of the annular groove (5) is fixedly connected to an annular airbag (6), the outer side of the annular airbag (6) is provided with an inflation unit, the interior of the processing box (1) is provided with a flip door (7), and the outer side of the flip door (7) is provided with a flip unit.

2. The hot melt welding device for MPP pipe processing according to claim 1, characterized in that: The inner bottom surface of the processing box (1) is provided with a slide groove (8), the inner surface of the slide groove (8) is slidably connected to a slide plate (9), the right side surface of the processing box (1) is fixedly connected to a motor (10), the left side output end of the motor (10) passes through the processing box (1), the left side output end of the motor (10) is fixedly connected to a screw rod (11), the left end of the screw rod (11) passes through the processing box (1) and the slide plate (9), the left end of the screw rod (11) is rotatably connected to the left side inner wall surface of the slide groove (8), and the inner surface of the processing box (1) is fixedly connected to a limit rod (12).

3. The hot melt welding device for MPP pipe processing according to claim 1, characterized in that: The inflation unit comprises an air pump (61), the air pump (61) is fixedly connected to the upper end of the processing box (1), a side output end of the air pump (61) is fixedly connected to a connecting pipe (62), an end of the connecting pipe (62) away from the air pump (61) passes through the processing box (1), and an end of the connecting pipe (62) away from the air pump (61) is fixedly connected to the upper end of the annular airbag (6).

4. The hot melt welding device for MPP pipe processing according to claim 1, characterized in that: The turnover unit comprises a fixed cylinder (71), the fixed cylinder (71) being fixedly connected to one end of the turnover door (7) away from the feed port (3), a fixed rod (72) being sleeved inside the fixed cylinder (71), the bottom end of the fixed rod (72) being fixedly connected to a limiting plate (73), the upper end of the fixed rod (72) being fixedly connected to a fixed plate (74), and a torsion spring (75) being sleeved on the outer surface of the fixed rod (72).

5. The hot melt welding device for MPP pipe processing according to claim 1, characterized in that: The outer ring surface of the annular airbag (6) is fixedly connected to the inner outer wall surface of the annular groove (5).

6. The hot melt welding device for MPP pipe processing according to claim 2, characterized in that: The upper surface of the slide plate (9) is fixedly connected to the bottom surface of the hot melt component (4), and the limiting rod (12) passes through the slide plate (9).

7. The hot melt welding device for MPP pipe processing according to claim 4, characterized in that: The outer wall surfaces of the limiting plate (73) and the fixing plate (74) are fixedly connected to the inner wall surface of the processing box (1), and the upper surface of the limiting plate (73) is in contact with the bottom surface of the fixing cylinder (71).

8. The hot melt welding device for MPP pipe processing according to claim 4, characterized in that: The upper end of the torsion spring (75) is fixedly connected to the bottom surface of the fixed plate (74), and the bottom end of the torsion spring (75) is fixedly connected to the upper surface of the fixed cylinder (71).

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