A hot melt machine for joining PPR pipe fittings

Abstract

The present application relates to pipeline hot melting technical field, especially to a kind of PPR pipe fittings hot melt ware of interfacing.The present application provides a kind of PPR pipe fittings hot melt ware of interfacing, which can automatically hot melt the PPR pipe fittings of water pressure.A kind of PPR pipe fittings hot melt ware of interfacing, including base, pressure piece, first hot melt ware, base right part is slidably connected with pressure piece, pressure piece upper left side is connected with first hot melt ware, further including fixed mechanism and closure mechanism, base right part is equipped with the fixed mechanism for the hot melting of PPR pipe fittings with water pressure, closure mechanism is equipped on base, and the water in PPR pipe fittings is blocked to flow out by closure mechanism, and first hot melt ware hot melts PPR pipe fittings is assisted.The expansion screw is extruded to right by first wedge, can make the expansion screw automatically into PPR pipe fittings with water pressure, prevent the water in PPR pipe fittings from flowing out, so that first hot melt ware can smoothly hot melt PPR pipe fittings with water pressure, improve hot melting efficiency.

Description

Technical Field

[0001] This invention relates to the field of pipe fusion technology, and more particularly to a fusion device for connecting PPR pipe fittings. Background Technology

[0002] When connecting PPR pipe fittings, heat fusion is often used.

[0003] Patent publication number CN203752521U discloses a heat fusion device for connecting PPR pipe fittings, including a bracket with a heat fusion device mounted on the bracket. The heat fusion device includes a housing with an internal control board. A temperature control knob connected to the control board is located on the side wall of the housing. A temperature and time display screen, a red indicator light, and a green indicator light are located on the side of the temperature control knob. In use, the inner surface of the PPR pipe fitting is first heated and melted using a heating element. Then, the two PPR pipe fittings are quickly fitted together. After the PPR pipe fittings cool down, they will be tightly connected, thus completing the connection.

[0004] When using the heat fusion device for PPR pipe fittings of the aforementioned patent to perform heat fusion connection on PPR pipe fittings, it can only be used to connect PPR pipe fittings that do not contain water. When it is necessary to perform heat fusion connection on PPR pipe fittings that are under water pressure, other tools are required, which limits the scope of application. Furthermore, even after using other tools, manual operation is still required, which is cumbersome and results in low connection efficiency.

[0005] To address the aforementioned shortcomings, we have designed a heat fusion device for automatically heat-fusion connecting PPR pipe fittings under water pressure. Summary of the Invention

[0006] In order to overcome the shortcomings of existing technologies in that it is difficult to automatically heat-melt PPR pipe fittings under water pressure, the present invention provides a heat fusion device for automatically heat-melting PPR pipe fittings under water pressure.

[0007] A heat fusion device for connecting PPR pipe fittings includes a base, a pressure component, a first heat fusion device, a pressure component slidably connected to the right side of the base, a first heat fusion device connected to the upper left side of the pressure component, a PPR pipe fitting placed on the right side of the base, the PPR pipe fitting being located between the pressure component and the base, and also includes a fixing mechanism and a closing mechanism. The right side of the base is provided with a fixing mechanism for heat fusion of the PPR pipe fitting under water pressure, and the base is provided with a closing mechanism to block the water inside the PPR pipe fitting from flowing out, thereby assisting the first heat fusion device in heat fusion of the PPR pipe fitting.

[0008] Furthermore, the fixing mechanism includes a compression spring, a pin, and a tension spring. A compression spring is connected between the rear of the pressure member and the base, and the compression spring is wound around the rear of the pressure member. A pin is snapped into the front right side of the base. A tension spring is connected between the pin and the front side of the base, and the tension spring is wound around the pin. A locking hole is opened on the upper front part of the pressure member.

[0009] Furthermore, the closing mechanism includes a lower pressure frame, a first wedge block, a storage spring, and a placement platform. The placement platform is slidably connected to the middle of the base, and an expansion screw is placed on the placement platform. The expansion screw is located to the left of the PPR pipe fitting. The first wedge block is slidably connected to the upper part of the placement platform. The first wedge block is tilted to the upper right, and the lower side of the first wedge block contacts the expansion screw. Storage springs are connected to the front and rear sides of the bottom of the first wedge block and the placement platform. The storage springs are all wound around the placement platform. The lower pressure frame is connected to the front and rear sides of the upper part of the pressure component. The left side of the lower pressure frame is located above the first wedge block. The pressure component drives the lower pressure frame to move down, pressing the first wedge block down. The first wedge block squeezes the expansion screw to the right into the PPR pipe fitting, blocking the water inside the PPR pipe fitting.

[0010] Furthermore, it also includes a moving mechanism for heat-melting the lower part of the PPR pipe fitting. The moving mechanism includes a second wedge block, a second heat fusion device, and an extrusion assembly. The second heat fusion device is slidably connected to the right side of the base and is located below the left side of the PPR pipe fitting. The second wedge block is slidably connected to the right side of the base and is located to the right of the second heat fusion device. The second wedge block is inclined to the upper right. An extrusion assembly for extruding the second wedge block is provided at the lower part of the pressure component.

[0011] Furthermore, the extrusion assembly includes an extrusion block and a third wedge block. The third wedge block is connected to both the front and rear sides of the lower part of the pressure component. The third wedge block is inclined to the lower right. The extrusion block is slidably connected to both the front and rear sides of the right side of the base. The left side of the extrusion block is in contact with the right side of the second wedge block, and the right side of the extrusion block is in contact with the third wedge block. The third wedge block moves down and squeezes the extrusion block and the second wedge block to the left. The second wedge block pushes the second heat melter upward, and the second heat melter automatically moves upward to fit with the PPR pipe fitting.

[0012] Furthermore, it also includes a docking mechanism for connecting PPR pipe fittings and adapters. The docking mechanism includes a rack, a gear, and a toothed pusher. The adapter is placed on the right side of the base, and the adapter is located to the left of the PPR pipe fitting. A rack is connected to the lower right side of the placement platform, and the rack contacts the top of the base. A toothed pusher is slidably connected to the right side of the base, and the toothed pusher is located above the rack. The upper right side of the toothed pusher contacts the left side of the adapter. A gear is rotatably connected to the top front side of the base, and the gear is located between the rack and the toothed pusher. The teeth on both the rack and the toothed pusher mesh with the gear.

[0013] Furthermore, it also includes a cleaner, with a cleaner for cleaning PPR pipe fittings connected to the top right side of the base.

[0014] Furthermore, it also includes a scraping mechanism for removing burrs from PPR pipe fittings. The scraping mechanism includes a scraper and a support base. The support base is connected to the top right side of the support base, and the scraper is connected to the upper side of the support base. The middle part of the scraper is slidably connected to the PPR pipe fitting.

[0015] The beneficial effects are as follows: 1. The present invention uses the first wedge block to press the expansion screw to the right, which enables the expansion screw to automatically engage with the PPR pipe fitting under water pressure, preventing the water inside the PPR pipe fitting from flowing out, so that the first heat melter can smoothly heat melt the PPR pipe fitting under water pressure, thereby improving the heat melting efficiency.

[0016] 2. The present invention heats the lower left side of the PPR pipe fitting by moving the second heat melter upward, which can enhance the heat melting effect of the left side of the PPR pipe fitting, shorten the heat melting time, and improve work efficiency.

[0017] 3. The present invention enables the conversion connector to be quickly connected to the heat-fused PPR pipe fitting by moving the toothed pusher frame to the right, without the need for manual connection, thus avoiding burns to people's hands and improving safety.

[0018] 4. This invention utilizes a cleaner to remove dust from the surface of PPR pipe fittings, preventing the heat fusion effect of PPR pipe fittings from being affected and resulting in a better heat fusion effect for PPR pipe fittings.

[0019] 5. This invention utilizes a scraper to remove burrs from the surface of PPR pipe fittings, which facilitates the heat fusion of PPR pipe fittings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0023] Figure 4 This is a first-view three-dimensional structural diagram of the closing mechanism of the present invention.

[0024] Figure 5 This is a second-view three-dimensional structural diagram of the closing mechanism of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the moving mechanism of the present invention.

[0026] Figure 7This is a three-dimensional structural diagram of the docking mechanism of the present invention.

[0027] Figure 8 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0028] Figure 9 This is a three-dimensional structural diagram of the scraping mechanism of the present invention.

[0029] Component names and numbers in the diagram: 1-Base, 2-Pressure component, 3-First heat melter, 4-PPR pipe fitting, 5-Fixing mechanism, 51-Compression spring, 52-Pin, 53-Tension spring, 6-Closing mechanism, 61-Lower pressure frame, 62-First wedge block, 63-Storage spring, 64-Placement platform, 7-Moving mechanism, 71-Extrusion block, 72-Second wedge block, 73-Second heat melter, 74-Third wedge block, 8-Connecting mechanism, 81-Rack, 82-Gear, 83-Toothed pusher, 9-Cleaner, 10-Scraping mechanism, 101-Scraper, 102-Support base. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] A heat fusion device for connecting PPR pipe fittings, such as Figure 1 and Figure 2 As shown, it includes a base 1, a pressure component 2, a first heat fusion device 3, a fixing mechanism 5, and a closing mechanism 6. The pressure component 2 is slidably connected to the right side of the base 1. The first heat fusion device 3 is installed on the upper left side of the pressure component 2. A PPR pipe fitting 4 is placed on the right side of the base 1. The PPR pipe fitting 4 is located between the pressure component 2 and the base 1. The fixing mechanism 5 is provided on the right side of the base 1. The fixing mechanism 5 can fix the downward-moving pressure component 2 and assist the first heat fusion device 3 in heat fusion of the PPR pipe fitting 4. The closing mechanism 6 is provided on the base 1. The closing mechanism 6 can assist people in heat fusion of the PPR pipe fitting 4 under water pressure.

[0033] like Figure 1 and Figure 3 As shown, the fixing mechanism 5 includes a compression spring 51, a pin 52, and a tension spring 53. The compression spring 51 is connected between the rear of the pressure member 2 and the base 1, and the compression spring 51 is wound around the rear of the pressure member 2. The pin 52 is snapped into the front right part of the base 1. The tension spring 53 is connected between the pin 52 and the front side of the base 1, and the tension spring 53 is wound around the pin 52. A locking hole is opened at the upper front part of the pressure member 2.

[0034] like Figure 1 , Figure 4 and Figure 5As shown, the closing mechanism 6 includes a lower pressure frame 61, a first wedge block 62, a storage spring 63, and a placement platform 64. The placement platform 64 is slidably connected to the middle of the base 1. An expansion screw is placed on the placement platform 64, and the expansion screw is located to the left of the PPR pipe fitting 4. The first wedge block 62 is slidably connected to the upper part of the placement platform 64. The first wedge block 62 is inclined to the upper right, and the lower side of the first wedge block 62 is in contact with the expansion screw. There are two storage springs 63, which are respectively connected between the front and rear sides of the bottom of the first wedge block 62 and the placement platform 64. The storage springs 63 are all wound around the placement platform 64. There are two lower pressure frames 61, which are respectively welded to the front and rear sides of the upper part of the pressure component 2. The left side of the lower pressure frame 61 is located above the first wedge block 62.

[0035] When heat fusion connection is required for PPR pipe fitting 4 under water pressure, the heat fusion device for this PPR pipe fitting connection can be used. First, pull the pin 52 forward, stretching the tension spring 53. Then, move the pressure component 2 and the first heat fusion device 3 downward, compressing the compression spring 51, so that the first heat fusion device 3 fits against the upper left side of the PPR pipe fitting 4, and the locking hole at the front of the pressure component 2 aligns with the pin 52. Then, release the pin 52. Under the action of the tension spring 53, the pin 52 moves backward and locks into the locking hole at the front of the pressure component 2, thus fixing the first heat fusion device 3 on the pressure component 2. At the same time, when the pressure component 2 moves downward, it also drives the lower pressure bracket 61 to move downward, then presses the first wedge block 62 downward. The first wedge block 62 presses down, squeezing the expansion screw to the right, so that the expansion screw is locked into the PPR pipe fitting 4. This blocks the water inside the PPR pipe fitting 4, preventing the water inside the PPR pipe fitting 4 from continuing to flow out. Then, the first heat fusion device can be activated. The device 3 heat-fuses the left side of the PPR pipe fitting 4. After the left side of the PPR pipe fitting 4 melts, the first heat fusion device 3 is closed, and then the pin 52 is pulled forward. Under the action of the compression spring 51, the pressure device 2 will drive the first heat fusion device 3 to move upward, so that the first heat fusion device 3 separates from the upper left side of the PPR pipe fitting 4. The pressure device 2 will also drive the lower pressure frame 61 to move upward. The lower pressure frame 61 will no longer squeeze the first wedge block 62. Under the action of the storage spring 63, the first wedge block 62 moves upward and resets. Then, the conversion connector is put on the left side of the PPR pipe fitting 4. At this time, the left side of the heat-fused PPR pipe fitting 4 will be bonded to the conversion connector. After the left side of the PPR pipe fitting 4 cools down, the left side of the PPR pipe fitting 4 and the conversion connector will be tightly bonded together. In this way, the connection work of the PPR pipe fitting 4 with water pressure can be completed. Then, the expansion screw is pulled out to the left and put back on the base 1. Repeat the above operation to automatically heat-fuse the PPR pipe fitting 4 with water pressure.

[0036] Example 2

[0037] Based on Example 1, such as Figure 1 and Figure 6 As shown, it also includes a moving mechanism 7, which includes a second wedge block 72, a second heat melter 73, and an extrusion assembly. The second heat melter 73 is slidably connected to the right side of the base 1 and is located below the left side of the PPR pipe fitting 4. The second wedge block 72 is slidably connected to the right side of the base 1 and is located to the right of the second heat melter 73. The second wedge block 72 is inclined to the upper right. The pressure member 2 is provided with an extrusion assembly at its lower part, which can extrude the second wedge block 72 to the left.

[0038] like Figure 6 As shown, the extrusion assembly includes an extrusion block 71 and a third wedge block 74. There are two third wedge blocks 74, which are fixed to the front and rear sides of the lower part of the pressure member 2, respectively. The third wedge blocks 74 are both inclined to the lower right. The right side of the base 1 is slidably connected to two extrusion blocks 71. The two extrusion blocks 71 are symmetrically arranged on the front and rear sides. The left side of each extrusion block 71 is in contact with the right side of the second wedge block 72, and the right side of each extrusion block 71 is in contact with the third wedge block 74.

[0039] When a stronger heat-fusion effect is needed, the moving mechanism 7 can be used. When the pressure component 2 moves downward, it also drives the third wedge block 74 downward. The downward movement of the third wedge block 74 presses the extrusion block 71 to the left, causing the extrusion block 71 to move the second wedge block 72 to the left. The leftward movement of the second wedge block 72 pushes the second heat-fusion device 73 upward, so that the second heat-fusion device 73 fits against the lower left side of the PPR pipe fitting 4. Subsequently, when heat-fusioning the left side of the PPR pipe fitting 4, the first heat-fusion device 3 and the second heat-fusion device 73 can be activated to heat-fuse the left side of the PPR pipe fitting 4, thus accelerating the heat-fusion speed. To improve heat fusion efficiency, after the left side of the PPR pipe fitting 4 is heat-fused, when the first heat fusion device 3 is closed, the second heat fusion device 73 is also closed. When the pressure device 2 moves upward, it also drives the third wedge block 74 to move upward. The third wedge block 74 no longer squeezes the extrusion block 71. Under its own gravity, the second heat fusion device 73 will move downward to reset. Then, the extrusion block 71 and the second wedge block 72 are squeezed to the right to reset. By repeating the above operation, the first heat fusion device 3 and the second heat fusion device 73 can be used to heat fuse the left side of the PPR pipe fitting 4 at the same time, resulting in a better heat fusion effect.

[0040] like Figure 1 and Figure 7As shown, it also includes a docking mechanism 8, which includes a rack 81, a gear 82, and a toothed pusher 83. A conversion connector is placed on the right side of the base 1, and the conversion connector is located to the left of the PPR pipe fitting 4. The rack 81 is welded to the lower right side of the placement platform 64, and the rack 81 is in contact with the top of the base 1. The toothed pusher 83 is slidably connected to the right side of the base 1, and the toothed pusher 83 is located above the rack 81. The upper right side of the toothed pusher 83 is in contact with the left side of the conversion connector. The gear 82 is rotatably connected to the front top of the base 1, and the gear 82 is located between the rack 81 and the toothed pusher 83. The teeth on the rack 81 and the toothed pusher 83 are all meshed with the gear 82.

[0041] After the left side of the PPR pipe fitting 4 has been heat-fused, and the adapter needs to be quickly fitted onto the left side of the PPR pipe fitting 4, the docking mechanism 8 can be used for operation. Initially, the adapter is already placed on the base 1. After the left side of the PPR pipe fitting 4 has been heat-fused, the placement platform 64 is pulled to the left, which then drives the rack 81 to move to the left. The leftward movement of the rack 81 drives the gear 82 to rotate clockwise, which in turn drives the toothed pusher 83 to move to the right. The rightward movement of the toothed pusher 83 pushes the adapter to the right, so that the adapter is automatically fitted onto the left side of the PPR pipe fitting 4. This allows for quick connection of the PPR pipe fitting 4 after heat fusion of the conversion joint, eliminating the need for manual connection and preventing burns to people's hands. Once the left side of the PPR pipe fitting 4 has cooled and is tightly connected to the conversion joint, the placement platform 64 and rack 81 are moved to the right to reset, causing gear 82 to rotate counterclockwise, which in turn drives the toothed pusher 83 to move to the left to reset. In summary, this allows for quick connection of the automatic conversion joint and the heat-fused PPR pipe fitting 4, preventing burns to people's hands.

[0042] like Figure 1 and Figure 8 As shown, it also includes a cleaner 9, which is connected to the top right side of the base 1. The cleaner 9 can clean the dust on the PPR pipe fitting 4.

[0043] When placing PPR pipe fitting 4, it is placed on base 1 from right to left. When PPR pipe fitting 4 passes through cleaner 9, cleaner 9 will clean the dust on the surface of PPR pipe fitting 4 to avoid affecting the heat fusion of PPR pipe fitting 4 later.

[0044] like Figure 1 and Figure 9 As shown, it also includes a scraping mechanism 10, which includes a scraper 101 and a support base 102. The support base 102 is welded to the top right side of the support base 102, and the scraper 101 is connected to the upper side of the support base 102. The middle part of the scraper 101 is slidably connected to the PPR pipe fitting 4.

[0045] Before heat fusion of PPR pipe fitting 4, if it is necessary to scrape off the burrs on PPR pipe fitting 4, the scraping mechanism 10 can be used. When PPR pipe fitting 4 is placed from right to left, PPR pipe fitting 4 will pass through the middle of scraper 101, and scraper 101 will scrape off the burrs on the outer wall of PPR pipe fitting 4. In this way, the burrs on the outer wall of PPR pipe fitting 4 can be cleaned frequently, which is beneficial for people to heat fusion of PPR pipe fitting 4 and improve the heat fusion effect.

[0046] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A heat fusion device for connecting PPR pipe fittings, comprising a base, a pressure component, a first heat fusion device, wherein the pressure component is slidably connected to the right side of the base, the first heat fusion device is connected to the upper left side of the pressure component, and a PPR pipe fitting is placed on the right side of the base, the PPR pipe fitting being located between the pressure component and the base, characterized in that: It also includes a fixing mechanism and a closing mechanism. The right side of the base is provided with a fixing mechanism for heat-melting PPR pipe fittings under water pressure. The base is provided with a closing mechanism to block the water in the PPR pipe fitting from flowing out, thereby assisting the first heat melter in heat-melting the PPR pipe fitting. The fixing mechanism includes a compression spring, a pin, and a tension spring. A compression spring is connected between the rear of the pressure component and the base. The compression spring is wound around the rear of the pressure component. A pin is snapped into the front right side of the base. A tension spring is connected between the pin and the front side of the base. The tension spring is wound around the pin. A locking hole is opened at the upper front of the pressure component. The closing mechanism includes a lower pressure frame, a first wedge block, a storage spring, and a placement platform. The placement platform is slidably connected to the middle of the base, and an expansion screw is placed on the placement platform. The expansion screw is located to the left of the PPR pipe fitting. The first wedge block is slidably connected to the upper part of the placement platform. The first wedge block is tilted to the upper right and the lower side of the first wedge block is in contact with the expansion screw. Storage springs are connected to the front and rear sides of the bottom of the first wedge block and the placement platform. The storage springs are all wound around the placement platform. The lower pressure frame is connected to the front and rear sides of the upper part of the pressure component. The left side of the lower pressure frame is located above the first wedge block. The pressure component drives the lower pressure frame to move down, pressing the first wedge block down. The first wedge block squeezes the expansion screw to the right into the PPR pipe fitting, blocking the water in the PPR pipe fitting. It also includes a moving mechanism for heat-melting the lower part of the PPR pipe fitting. The moving mechanism includes a second wedge block, a second heat melter, and an extrusion assembly. The second heat melter is slidably connected to the right side of the base and is located below the left side of the PPR pipe fitting. The second wedge block is slidably connected to the right side of the base and is located to the right of the second heat melter. The second wedge block is inclined to the upper right. An extrusion assembly for extruding the second wedge block is provided at the lower part of the pressure component. The extrusion assembly includes an extrusion block and a third wedge block. The third wedge block is connected to both the front and rear sides of the lower part of the pressure component. The third wedge block is inclined to the lower right. The extrusion block is slidably connected to both the front and rear sides of the right side of the base. The left side of the extrusion block is in contact with the right side of the second wedge block, and the right side of the extrusion block is in contact with the third wedge block. The third wedge block moves down and squeezes the extrusion block and the second wedge block to the left. The second wedge block pushes the second heat melter upward, and the second heat melter automatically moves upward to fit with the PPR pipe fitting. It also includes a docking mechanism for connecting PPR pipe fittings and adapters. The docking mechanism includes a rack, a gear, and a toothed pusher. The adapter is placed on the right side of the base and is located to the left of the PPR pipe fitting. A rack is connected to the lower right side of the platform and contacts the top of the base. A toothed pusher is slidably connected to the right side of the base and is located above the rack. The upper right side of the toothed pusher contacts the left side of the adapter. A gear is rotatably connected to the top front of the base and is located between the rack and the toothed pusher. The teeth on both the rack and the toothed pusher mesh with the gear.

2. The hot melt connector for PPR pipe fittings according to claim 1, characterized in that: It also includes a cleaner, which is connected to the top right side of the base for cleaning PPR pipe fittings.

3. The hot melt connector for PPR pipe fittings according to claim 2, characterized in that: It also includes a scraping mechanism for removing burrs from PPR pipe fittings. The scraping mechanism includes a scraper and a support base. The support base is connected to the top right side of the support base, and the scraper is connected to the upper side of the support base. The middle part of the scraper is slidably connected to the PPR pipe fitting.

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