Semi-automatic PFA short pipe flaring device

Abstract

The invention discloses a semi-automatic PFA short pipe flaring device, and relates to the technical field of FPA pipe machining. The device comprises an operation machine table, a moving mechanism, a heating station, a flaring and nut mounting station and a blowing cooling mechanism. According to the PFA short pipe flaring device, a flaring connector of a pipeline can be connected in a short distance, the procedures of automatic flaring and automatic nut clamping are completed through cooperation of the air cylinder and the mold, and semi-automation is achieved; the heating rod extends into the short pipe for heating, the heating is relatively uniform, and the heating time is short; the flaring die is sleeved with the mounting nut, and the short pipe is sleeved with the mounting nut through the pushing mechanism, so that the scalding risk caused by the high temperature of the heated short pipe when the nut is manually mounted is avoided; and the arranged blowing cooling mechanism is used for blowing and cooling, the waiting time of natural cooling after flaring is completed can be shortened, the working efficiency is improved, besides manual feeding and discharging, feeding and discharging can be automatically completed by the equipment, and the labor cost is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of FPA pipe processing technology, and in particular relates to a semi-automatic PFA short pipe flaring device. Background Technology

[0002] Due to its excellent chemical stability and corrosion resistance, PFA material is widely used in fluid transport in semiconductor manufacturing processes. To better connect and install these pipes, flaring is often required. Currently, the industry mainly uses two flaring methods: cold flaring and hot flaring. Cold flaring primarily uses a pressure-based mold to expand the PFA tube, which can easily lead to damage and is less effective at sealing than hot flaring. Hot flaring mainly uses a hot air gun to heat the PFA tube, then uses a mold to expand it into its shape.

[0003] like Figure 5 As shown, for heat-expanded pipes, the pipe connection joints typically have nuts. These nuts need to be inserted into the pipe before heating and expanding it. However, for very short pipe connections, the flaring distance after inserting the nut is too short to be easily achieved. Therefore, it's necessary to increase the distance between the connecting pipes, which wastes a lot of space and increases the internal volume of the equipment. Thus, the need for short pipe flaring requires purchasing ready-made flared pipe fittings, significantly increasing costs. Therefore, this technical solution proposes a semi-automatic PFA short pipe flaring device for the fabrication of short-distance flared fittings. Summary of the Invention

[0004] This invention provides a semi-automatic PFA short pipe flaring device, which can connect flaring joints of pipelines over short distances. The device automatically flares and clamps nuts using a cylinder and a mold, achieving semi-automation. A heating rod extends into the short pipe for heating, resulting in more uniform heating and a shorter heating time. By placing the nut on the flaring mold and then using a pushing mechanism to attach it to the short pipe, the risk of burns caused by the high temperature of the heated short pipe during manual nut installation is avoided. An air-blowing cooling mechanism reduces the waiting time for natural cooling after flaring, improving work efficiency. Except for manual loading and unloading, everything can be completed automatically by the equipment, significantly reducing labor costs. In summary, this invention solves the problems in the background technology.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] The present invention provides a semi-automatic PFA short pipe flaring device, including an operating platform, on which a moving mechanism is provided, and a heating station, a flaring and nut installation station, and an air blowing cooling mechanism are symmetrically installed on both sides of the moving mechanism.

[0007] The moving mechanism is a lateral moving mechanism, and a short pipe mounting bracket for manually clamping the short pipe is mounted on the lateral moving mechanism via a sliding block.

[0008] The heating station includes two first propulsion mechanisms symmetrically arranged on both sides of one end of the transverse moving mechanism. The propulsion head end of the first propulsion mechanism is equipped with a heating rod through a clamping plate. The heating rods on the two first propulsion mechanisms are arranged opposite each other and heat the inner walls of both ends of the short pipe through the propulsion of the first propulsion mechanism.

[0009] The flaring and nut installation station includes two second propulsion mechanisms symmetrically arranged on both sides of the other end of the transverse moving mechanism. The propulsion head of the second propulsion mechanism is provided with a flaring mold for flaring both ends of the short pipe, and a nut for fitting the short pipe is manually installed on the flaring mold. The flaring molds on the two second propulsion mechanisms are arranged opposite to each other and the flaring and pressing action of the short pipe is performed by the propulsion of the flaring molds.

[0010] The air-blowing cooling mechanism uses two flexible air-blowing bends, with the air-blowing heads at the ends of the bends facing the flared and pressure sleeve positions for air-blowing cooling.

[0011] Furthermore, the short pipe mounting bracket includes a bottom vertical plate, a vertical pressure plate mounted on the bottom vertical plate via a first rotating shaft, a locking threaded rod rotatably mounted on the other side of the bottom vertical plate via a second rotating shaft and corresponding to the side limiting groove of the vertical pressure plate, and a rotating adjusting nut rotatably mounted on the top of the locking threaded rod to press down and lock the vertical pressure plate; a through hole for the short pipe to pass through is provided at the center position between the bottom vertical plate and the vertical pressure plate, and a clamping block is provided in the through hole to clamp the short pipe with the same curvature.

[0012] Furthermore, the lateral movement mechanism adopts a linear slide module.

[0013] Furthermore, the first propulsion mechanism is a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder, and its bottom is mounted on the operating platform via a fixed mounting base.

[0014] Furthermore, the second propulsion mechanism is a pneumatic cylinder or an electric cylinder, and its bottom is mounted on the operating platform via a support base; the support base is provided with a limiting block that limits the end of the propulsion head of the second propulsion mechanism through a limiting hole.

[0015] Furthermore, the air-blowing bend is mounted on the operating platform via a fixing block, and an air pump is installed at the tail end of the air-blowing bend.

[0016] Furthermore, the heating rod is powered by an external connection for heating.

[0017] Furthermore, a control button box is provided on the operating platform.

[0018] Furthermore, the bottom of the operating platform is equipped with height-adjustable support legs.

[0019] Furthermore, the method of using this semi-automatic PFA short pipe flaring device includes the following steps:

[0020] S1. Manual feeding: Place the short pipe that needs to be flared on the short pipe mounting bracket and lock it;

[0021] S2. Heating: The heating mode is started by pressing the start button on the control button box. The heating rod is pushed into both ends of the short tube by the first pushing mechanism for heating. After heating for a certain period of time, the first pushing mechanism is retracted.

[0022] S3. Change position: The short pipe mounting bracket is moved to the flaring and nut mounting position by the lateral moving mechanism;

[0023] S4. Flaring and installing nuts simultaneously: The second propulsion mechanism pushes the flaring mold, which has been manually loaded with the required nuts, into both ends of the heated short pipe to flare the pipe. At the same time, the nuts are put on the ends of the short pipe, and the flaring is completed.

[0024] S5. Air blowing cooling: The air blowing cooling mechanism blows air directly onto the flared and pressure sleeve positions to cool the connection positions quickly.

[0025] S6. Remove the finished product: Remove the connected finished product by opening the locking structure of the short tube mounting bracket.

[0026] The present invention has the following advantages over the prior art:

[0027] (1) This technology provides a flared connector that can connect pipelines over short distances. The automatic flaring and automatic nut clamping processes are completed by the cooperation of cylinders and molds, achieving semi-automation. The symmetrical double-sided flaring can reduce material costs and improve work efficiency.

[0028] (2) The heating rod is inserted into the short tube for heating, which makes the heating more uniform and the heating time shorter;

[0029] (3) The installation nut is put on the flaring mold and then put into the short pipe through the cylinder, which avoids the risk of burns caused by the high temperature of the short pipe after it is heated when the nut is manually installed.

[0030] (4) Except for manual loading and unloading, everything can be completed automatically by the equipment, which greatly reduces labor costs;

[0031] (5) Adding the step of blowing air to cool down reduces the time waiting for natural cooling after the flaring is completed, thus improving work efficiency.

[0032] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a semi-automatic PFA short tube flaring device according to the present invention;

[0035] Figure 2 for Figure 1 A magnified view of a portion of position A in the middle;

[0036] Figure 3 for Figure 1 A magnified view of a portion of position B in the middle;

[0037] Figure 4 for Figure 1 A schematic diagram of the second propulsion mechanism with a flared mold;

[0038] Figure 5 This is a schematic diagram of the connected PFA short tube and nut as described in the background art.

[0039] Figure 6 The diagram shows the structure of the corresponding short pipe with flared end and nut.

[0040] The attached diagram lists the components represented by each number as follows:

[0041] 1-Operating platform, 101-Height-adjustable support leg, 102-Control button box, 2-Horizontal movement mechanism, 201-Sliding block, 202-Short pipe mounting bracket, 203-Vertical pressure plate, 204-Clamping block, 205-Locking threaded rod, 206-Second rotating shaft, 207-First rotating shaft, 208-Rotation adjustment nut, 3-First propulsion mechanism, 301-Clamping plate, 302-Fixed mounting base, 4-Heating rod, 401-External wiring, 5-Second propulsion mechanism, 501-Flanging mold, 502-Support base, 503-Limiting block, 6-Blowing bend, 601-Fixing block, 602-Blowing head, 7-Short pipe, 701-Flanging structure, 8-Nut. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "both sides", "ends", "both ends", "vertical", "both ends", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0044] like Figure 5 As shown, for heat-expanding pipes, the pipe connection joints usually have nuts. The nuts need to be put into the pipe first before heating and expanding the pipe. However, for pipes with very short connecting pipes, the flaring distance is too short after the nuts are put on, making it difficult to perform the flaring operation. Therefore, it is necessary to increase the distance between the connecting pipes, but this will waste a lot of space and increase the volume of the equipment. Figure 6 The diagram shown is a structural schematic of a short pipe 7 with a flared structure 701 and a nut 8.

[0045] Existing methods primarily employ cold expansion and hot expansion to address PFA pipeline connection issues. Cold expansion is prone to pipe damage and poor sealing, while hot expansion suffers from difficulties in operation due to short connection distances and increased equipment size. This invention aims to overcome these shortcomings by providing a flared connector for short-distance pipeline connections. The process of automatic flaring and nut clamping is achieved through the cooperation of a cylinder and a mold, realizing semi-automation. A heating rod extends into the short pipe for heating, ensuring more uniform heating and a shorter heating time. The installation nut is fitted onto the flaring mold and then onto the short pipe via a cylinder, avoiding the risk of burns caused by the high temperature of the heated short pipe during manual nut installation. An air-blowing cooling step is added, reducing the waiting time for natural cooling after flaring and improving work efficiency.

[0046] Please see Figure 1-4 As shown, a semi-automatic PFA short pipe flaring device of the present invention includes an operating platform 1, on which a moving mechanism is provided, and a heating station, a flaring and nut installation station, and an air blowing cooling mechanism are symmetrically installed on both sides of the moving mechanism.

[0047] The moving mechanism adopts a transverse moving mechanism 2, and a short pipe mounting bracket 202 for manually installing and clamping the short pipe 7 is mounted on the transverse moving mechanism 2 via a sliding block 201.

[0048] The heating station includes two first propulsion mechanisms 3 symmetrically arranged on both sides of one end of the transverse moving mechanism 2. The end of the propulsion head of the first propulsion mechanism 3 is equipped with a heating rod 4 through the clamping plate 301. The heating rods 4 on the two first propulsion mechanisms 3 are arranged opposite each other and heat the inner walls of both ends of the short tube 7 through the propulsion of the first propulsion mechanism 3. The heating rod 4 is an electric heating rod and is powered by the external wiring 401.

[0049] The flaring and nut installation station includes two second propulsion mechanisms 5 symmetrically arranged on both sides of the other end of the transverse moving mechanism 2. The propulsion head of each second propulsion mechanism 5 is equipped with a flaring mold 501 for flaring both ends of the short pipe 7, and nuts 8 for fitting the short pipe 7 are manually installed on the flaring mold 501. The flaring molds 501 on the two second propulsion mechanisms 5 are arranged opposite each other, and the flaring and pressing action of the short pipe 7 is performed by the propulsion of the flaring molds 501. In this specific embodiment, the flaring mold 501 is as follows: Figure 4 As shown, the end of the short pipe 7 can be flared and can support the nut 8, thus achieving the connection between the nut 8 and the short pipe 7 while flaring.

[0050] The air-blowing cooling mechanism uses two flexible air-blowing bends 6, with the air-blowing head 602 at the end of the air-blowing bend 6 facing the flared and pressure sleeve positions for air-blowing cooling.

[0051] The short pipe mounting bracket 202 includes a bottom vertical plate, a vertical pressure plate 203 mounted on the bottom vertical plate via a first rotating shaft 207, a locking threaded rod 205 rotatably mounted on the other side of the bottom vertical plate via a second rotating shaft 206 and corresponding to the side limiting groove of the vertical pressure plate 203, and a rotating adjusting nut 208 rotatably mounted on the top of the locking threaded rod 205 to press down and lock the vertical pressure plate 203; a through hole for the short pipe 7 to pass through is provided at the center position between the bottom vertical plate and the vertical pressure plate 203, and a clamping block 204 is provided in the through hole to clamp the short pipe 7 with the same outer curvature.

[0052] The lateral movement mechanism 2 adopts a linear slide module.

[0053] The first propulsion mechanism 3 is a pneumatic cylinder, electric cylinder or hydraulic cylinder, and its bottom is mounted on the operating platform 1 via a fixed mounting base 302.

[0054] The second propulsion mechanism 5 is a pneumatic cylinder or an electric cylinder, and its bottom is mounted on the operating platform 1 via a support base 502. The support base 502 is provided with a limiting block 503 that limits the end of the propulsion head of the second propulsion mechanism 5 through a limiting hole.

[0055] The air-blowing bend 6 is mounted on the operating platform 1 via a fixing block 601. An air pump is installed at the tail of the air-blowing bend 6 to supply air to the air-blowing network pipe 6. It adopts a segmented bend structure that can be bent arbitrarily.

[0056] The heating rod 4 is powered by an external wiring 401 for heating.

[0057] The operating console 1 is equipped with a control button box 102; the button box 102 has a start button, as well as buttons for controlling the movement of the lateral moving mechanism 2, the advancement and retraction of the first propulsion mechanism 3, the advancement and retraction of the second propulsion mechanism 5, and the blowing of air by the air blowing head 602.

[0058] The bottom of the operating platform 1 is equipped with height-adjustable support legs 101.

[0059] The method of using this semi-automatic PFA short pipe flaring device includes the following steps:

[0060] S1. Manual feeding: Place the short pipe 7 that needs to be flared on the short pipe mounting bracket 202 and lock it;

[0061] S2. Heating: The heating mode is started by controlling the start button on the button box 102. The heating rod 4 is pushed into the two ends of the short tube 7 by the first pushing mechanism 3 for heating. After heating for a certain period of time, the first pushing mechanism 3 is retracted.

[0062] S3. Change position: The short pipe mounting bracket 202 moves to the flaring and nut mounting position via the transverse moving mechanism 2;

[0063] S4. Flaring and installing nuts simultaneously: The second propulsion mechanism 5 pushes the flaring mold 501, which has been manually loaded with the required nuts 8, into both ends of the heated short tube 7 to flare the tube. At the same time, the nuts 8 are put on the ends of the short tube 7, and the flaring is completed.

[0064] S5. Air blowing cooling: The air blowing cooling mechanism blows air directly onto the flared and pressure sleeve positions to cool the connection positions quickly.

[0065] S6. Remove the finished product: Remove the connected finished product by opening the locking structure of the short tube mounting bracket 202.

[0066] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A semi-automatic PFA short pipe flaring device, comprising an operating platform (1), characterized in that, The operating platform (1) is equipped with a moving mechanism, and a heating station, a flaring and nut installation station, and an air blowing cooling mechanism are symmetrically installed on both sides of the moving mechanism. The moving mechanism adopts a transverse moving mechanism (2), and a short pipe mounting bracket (202) for manually installing and clamping the short pipe (7) is installed on the transverse moving mechanism (2) via a sliding block (201); The heating station includes two first propulsion mechanisms (3) symmetrically arranged on both sides of one end of the transverse moving mechanism (2). The propulsion head end of the first propulsion mechanism (3) is equipped with a heating rod (4) through a clamping plate (301). The heating rods (4) on the two first propulsion mechanisms (3) are arranged opposite to each other and heat the inner walls of both ends of the short pipe (7) through the propulsion of the first propulsion mechanism (3). The flaring and nut installation station includes two second propulsion mechanisms (5) symmetrically arranged on both sides of the other end of the transverse moving mechanism (2). The propulsion head end of the second propulsion mechanism (5) is provided with a flaring mold (501) for flaring both ends of the short pipe (7), and a nut (8) for sleeve on the short pipe (7) is manually installed on the flaring mold (501); the flaring molds (501) on the two second propulsion mechanisms (5) are arranged opposite to each other and the flaring and sleeve actions of the short pipe (7) are performed by the propulsion of the flaring molds (501); The air-blowing cooling mechanism uses two flexible air-blowing bends (6), and the air-blowing head (602) at the end of the air-blowing bend (6) is directly facing the flared and pressure sleeve position for air-blowing cooling.

2. The semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The short pipe mounting bracket (202) includes a bottom vertical plate, a vertical pressure plate (203) mounted on the bottom vertical plate via a first rotating shaft (207), a locking threaded rod (205) rotatably mounted on the other side of the bottom vertical plate via a second rotating shaft (206) and corresponding to the side limiting groove of the vertical pressure plate (203), and a rotating adjusting nut (208) rotatably mounted on the top of the locking threaded rod (205) to press down and lock the vertical pressure plate (203); a through hole for the short pipe (7) to pass through is provided at the center position between the bottom vertical plate and the vertical pressure plate (203), and a clamping block (204) is provided in the through hole to clamp the short pipe (7) with the same outer curvature.

3. The semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The lateral movement mechanism (2) adopts a linear slide module.

4. The semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The first propulsion mechanism (3) is a pneumatic cylinder, electric cylinder or hydraulic cylinder, and its bottom is mounted on the operating table (1) via a fixed mounting base (302).

5. A semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The second propulsion mechanism (5) is a pneumatic cylinder or an electric cylinder, and its bottom is mounted on the operating table (1) via a support base (502); the support base (502) is provided with a limiting block (503) that limits the end of the propulsion head of the second propulsion mechanism (5) through a limiting hole.

6. A semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The air-blowing bend (6) is mounted on the operating platform (1) by a fixing block (601), and an air pump is installed at the tail of the air-blowing bend (6).

7. A semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The heating rod (4) is powered by an external wiring (401) for heating.

8. A semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The operating console (1) is equipped with a control button box (102).

9. A semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The bottom of the operating platform (1) is provided with height-adjustable support legs (101).

10. A semi-automatic PFA short pipe flaring device according to claim 1, characterized in that, The method of using this semi-automatic PFA short pipe flaring device includes the following steps: S1. Manual feeding: Place the short pipe (7) that needs to be flared on the short pipe mounting bracket (202) and lock it; S2, Heating: The heating mode starts working by controlling the start button on the button box (102). The heating rod (4) is pushed into the two ends of the short tube (7) by the first push mechanism (3) for heating. After heating for a certain period of time, the first push mechanism (3) is retracted. S3. Change position: The short pipe mounting bracket (202) moves to the flaring and nut mounting position through the lateral moving mechanism (2); S4. Flaring and installing nuts simultaneously: The second propulsion mechanism (5) pushes the flaring mold (501) with the required nuts (8) manually loaded into the heated short tube (7) to flare both ends. At the same time, the nuts (8) are put on the ends of the short tube (7) to finish flaring. S5. Air blowing cooling: The air blowing cooling mechanism blows air directly onto the flared and pressure sleeve positions to cool the connection positions quickly. S6. Remove the finished product: Remove the connected finished product by opening the locking structure of the short tube mounting bracket (202).

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