PFA pipe welding machine
By sinking on the second slide rod of the PFA pipe welding machine and setting the fixed seat and moving seat incline, the problem of excessively high clamp support plate support position when welding special structural pipe fittings is solved, and the uniformity of welds is achieved Take into account both adaptive needs.
Patent Information
- Application Number
- CN202420426424.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-05
AI Technical Summary
When the existing PFA pipe welding machines weld special structural pipe fittings, the clamp support plate support position is too high, resulting in too high welding center and too large deflection, which can easily cause uneven welds.
Design a PFA pipe welding machine, by sinking on the second slide rod, making its height lower than the first slide rod, and the fixed seat and the moving seat are arranged inclined, thereby expanding the space around the clamp and adapting to special structural pipe parts Weld and keep the clamping position of the support plate not lifted too high.
This design effectively avoids the problem of uneven welds caused by excessive deflection of the support plate, and at the same time adapts to the welding needs of special structural pipe fittings and expands the space around the fixture.
Smart Images
Figure CN222522055U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of PFA welding, and in particular relates to a PFA pipe welding machine. Background Art
[0002] The PFA tube welding machine is a device used for hot-melt welding of PFA tubes. It is usually used in the chemical industry, semiconductor manufacturing and other fields that require high-purity materials and precision welding. When hot-melt welding two sections of PFA tubes, the two sections of tubes must first be fixed on a fixture to ensure that they are properly aligned, and then the welding part of the two sections of tubes is heated by a heating plate to soften them to the welding temperature. Then, pressure is applied through a pressure mechanism to press the welding parts of the two sections of the tube tightly together for press-welding. After the welding part cools and solidifies, the pressure is stopped and the welding is completed.
[0003] When welding between pipes with special structures (such as elbows, tees, etc.), after the welded part is inserted into the fixture, the remaining part needs to occupy a large space. Based on this, in order to adapt to the welding between pipes with special structures (such as elbows, tees, etc.), the existing PFA pipe welding machine raises the support position by increasing the length of the fixture support plate to expand the space around the fixture and prevent the remaining structure of the welding machine from interfering with the remaining part of the pipe. However, this design will cause the welding center of the pipe to be too high during butt welding, and the deflection of the fixture support plate will be too large, which may easily lead to uneven pipe welds during pressure welding. Utility Model Content
[0004] The utility model aims to provide a PFA pipe welding machine to solve the technical problems that the supporting position of the existing PFA pipe welding machine is too high, the welding center of the pipe fitting is too high during butt welding, and uneven pipe welds are easily caused during pressure welding.
[0005] The present application provides a PFA tube welding machine. The PFA tube welding machine includes: a first slide bar and a second slide bar arranged in parallel, which are installed on a box body; a fixed seat, whose two ends are fixed on the first slide bar and the second slide bar, and a first support plate is vertically arranged on the fixed seat, and a first clamp is arranged on the top of the first support plate; a movable seat is arranged opposite to the fixed seat, and its two ends are slidably installed on the first slide bar and the second slide bar, and a second support plate is vertically arranged on the movable seat, and a second clamp is arranged on the top of the second support plate; a driving mechanism is used to drive the movable seat to move toward the fixed seat; wherein the height of the second slide bar is lower than the height of the first slide bar, and the fixed seat and the movable seat are arranged obliquely.
[0006] In one embodiment of the present application, an obtuse angle formed by a plane where the axes of the first sliding rod and the second sliding rod are located and a horizontal plane is 145° to 155°.
[0007] In one embodiment of the present application, the vertical distance from the center of the first clamp to the fixing seat is 38-42 mm.
[0008] In one embodiment of the present application, the box body includes two oppositely arranged side panels, which are respectively used to fix the ends of the first sliding rod and the second sliding rod; wherein the corresponding side panel is provided with a notch at the corner between the ends of the first sliding rod and the second sliding rod, and the notch area covers the projection area of the first support plate or the second support plate on the side panel.
[0009] In one embodiment of the present application, the notch includes a first vertical side and a second horizontal side; the distance from the first side to the first sliding bar is 10 to 12 mm; the distance from the second side to the second sliding bar is 19 to 20 mm.
[0010] In one embodiment of the present application, the PFA tube welding machine further includes: a rotating shaft installed on the box body; a heating element installed on the rotating shaft; and a driving element for driving the rotating shaft to rotate so as to rotate the heating element between the first clamp and the second clamp.
[0011] In one embodiment of the present application, the driving mechanism includes: a mounting seat, whose two ends are fixed on the first slide bar and the second slide bar; a driving motor, which is fixed on the mounting seat and has a screw mounted on its output shaft that matches the thread of the moving seat.
[0012] In one embodiment of the present application, the first support plate is protruded on the side of the fixed seat facing the movable seat; the second support plate is protruded on the side of the movable seat facing the fixed seat.
[0013] In one embodiment of the present application, a baffle is rotatably installed on the first slide rod and is located between the fixed seat and the movable seat for positioning the end face of the pipe to be welded; a receiving groove is provided on the movable seat for accommodating the baffle mounting seat so that the minimum spacing between the first support plate and the second support plate is not greater than 4.4 mm.
[0014] In one embodiment of the present application, the first support plate and the fixed seat, and the second support plate and the movable seat are integrally formed.
[0015] The beneficial effects of the utility model are:
[0016] Different from the prior art, the present application provides a PFA pipe welding machine. The second slide bar of the PFA pipe welding machine is designed to be sunken, and its height is lower than that of the first slide bar, and the fixed seat and the movable seat are tilted, thereby expanding the space around the clamp, which can adapt to the welding between special structural pipes (such as elbows, tees, etc.); and the design does not lift the clamping position of the support plate too high, and the connection width between the support plate and the fixed seat or the movable seat is wider, which can avoid the problem of uneven pipe welds during pressure welding due to excessive deflection of the support plate.
[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.
[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 and Figure 2 It is a three-dimensional diagram of a PFA pipe welding machine of a preferred embodiment of the utility model;
[0021] Figure 3 It is a top view of a fixing base of a preferred embodiment of the utility model;
[0022] Figure 4 It is a partial side view of a PFA pipe welding machine of a preferred embodiment of the utility model;
[0023] Figure 5 It is a side view of a fixing base according to a preferred embodiment of the utility model.
[0024] In the figure:
[0025] Box body 1, first slide bar 11, second slide bar 12, side plate 13, notch 14, first side edge 141, second side edge 142, fixed seat 2, first support plate 21, first clamp 22, movable seat 3, second support plate 31, second clamp 32, accommodating groove 33, driving mechanism 4, mounting seat 41, driving motor 42, screw 43, rotating shaft 51, heating element 52, driving element 53, baffle mounting seat 61, baffle 62. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] When welding between special structural pipe fittings (such as elbows, tees, etc.), after the welded part is inserted into the fixture, the remaining part needs to occupy a large space. Based on this, in order to adapt to the welding between special structural pipe fittings (such as elbows, tees, etc.), the fixture support plate of the existing PFA pipe welding machine is installed on two horizontal sliding bars. On this basis, the support position is raised by increasing the length of the fixture support plate to expand the space around the fixture and prevent the remaining structure of the welding machine from interfering with the remaining part of the pipe fitting. However, this design will cause the welding center of the pipe fitting to be too high during butt welding, and the deflection of the fixture support plate will be too large, which may easily lead to uneven pipe welds during pressure welding.
[0028] The present application provides a PFA pipe welding machine to solve the above problems. The following are detailed descriptions. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.
[0029] See also Figure 1 , Figure 2 and Figure 3 In one embodiment, the PFA pipe welding machine includes: a first slide bar 11 and a second slide bar 12 arranged in parallel, which are installed on a box body 1; a fixed seat 2, whose two ends are fixed on the first slide bar 11 and the second slide bar 12, and a first support plate 21 is vertically arranged on the fixed seat 2, and a first clamp 22 is arranged on the top of the first support plate 21; a movable seat 3 is arranged opposite to the fixed seat 2, and its two ends are slidably installed on the first slide bar 11 and the second slide bar 12, and a second support plate 31 is vertically arranged on the movable seat 3, and a second clamp 32 is arranged on the top of the second support plate 31; a driving mechanism 4 is used to drive the movable seat 3 to move toward the fixed seat 2; wherein the height of the second slide bar 12 is lower than the height of the first slide bar 11, and the fixed seat 2 and the movable seat 3 are arranged obliquely.
[0030] In this embodiment, the second slide bar 12 of the PFA pipe welding machine is designed to be sunken, and its height is lower than that of the first slide bar 11, so that the fixed seat 2 and the movable seat 3 are arranged at an angle, thereby expanding the space around the first clamp 22 and the second clamp 32, and can adapt to the welding between special structural pipes (such as elbows, tees, etc.); and, this design does not lift the clamping position of the first support plate 21 and the second support plate 31 too high, and the connection width of each support plate with the fixed seat 2 and the movable seat 3 is wider, which can avoid the problem of uneven pipe welds during pressure welding due to excessive deflection of the support plate.
[0031] See also Figure 4 The obtuse angle A formed by the plane where the axes of the first sliding rod 11 and the second sliding rod 12 are located and the horizontal plane is 145° to 155°, preferably 150°.
[0032] See also Figure 5 The vertical distance H from the center of the first clamp 22 to the fixing seat 2 is 38-42 mm, preferably 40 mm.
[0033] See also Figure 1 , Figure 2 and Figure 4 The box body 1 includes two oppositely arranged side panels 13, which are respectively used to fix the ends of the first sliding rod 11 and the second sliding rod 12; wherein the corresponding side panel 13 is provided with a notch 14 at the corner between the ends of the first sliding rod 11 and the second sliding rod 12, and the notch 14 area covers the projection area of the first support plate 21 or the second support plate 31 on the side panel 13.
[0034] In this embodiment, the notch 14 is designed to allow the remaining portion of the pipe to pass through, thereby being adaptable to pipes of special shapes.
[0035] See also Figure 4 Preferably, the notch 14 includes a vertical first side 141 and a horizontal second side 142; the distance L1 from the first side 141 to the first slide bar 11 is 10-12 mm, preferably 11 mm; the distance L2 from the second side 142 to the second slide bar 12 is 19-20 mm, preferably 19.5 mm.
[0036] See also Figure 1 and Figure 2 The PFA tube welding machine also includes: a rotating shaft 51 installed on the box body 1; a heating element 52 installed on the rotating shaft 51; and a driving element 53 for driving the rotating shaft 51 to rotate so as to rotate the heating element 52 between the first clamp 22 and the second clamp 32.
[0037] In this embodiment, before welding, the heating element 52 can be rotated between the first clamp 22 and the second clamp 32 by rotating the driving member 53 to heat the welding surface; after heating, the heating element 52 is rotated away from between the first clamp 22 and the second clamp 32.
[0038] See also Figure 1 , Figure 2 and Figure 3 The driving mechanism 4 includes: a mounting seat 41, both ends of which are fixed on the first slide bar 11 and the second slide bar 12; a driving motor 42, which is fixed on the mounting seat 41, and a screw 43 that is threadedly matched with the moving seat 3 is installed on its output shaft.
[0039] In this embodiment, the notch 14 located at one side of the driving mechanism 4 may be further provided with a sub-notch to accommodate the driving motor 42 .
[0040] In this embodiment, preferably, the first support plate 21 is protruded on the side of the fixed seat 2 facing the movable seat 3 ; the second support plate 31 is protruded on the side of the movable seat 3 facing the fixed seat 2 .
[0041] Furthermore, a baffle mounting seat 61 is fixed on the first slide bar 11 and is located between the fixed seat 2 and the movable seat 3; a baffle 62 is rotatably provided on the baffle mounting seat for positioning the end face of the pipe to be welded; and a receiving groove 33 is provided on the movable seat 3 for accommodating the baffle 6 mounting seat 41, so that the minimum spacing between the first support plate 21 and the second support plate 31 is not greater than 4.4 mm.
[0042] In this embodiment, in order to meet the problems of pipeline arrangement in a narrow space and welding of PFA tubes with special structures, the above-mentioned structural optimization is used to make it simpler and lighter, with a minimum welding distance of only 4.4 mm. It is not limited by local space and can cover PFA tubes with special structures such as space elbows.
[0043] In this embodiment, preferably, the first support plate 21 and the fixed seat 2, and the second support plate 31 and the movable seat 3 are integrally formed, which can improve the structural strength.
[0044] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.
[0045] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.
[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0047] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A PFA pipe welding machine, characterized in that: include: A first sliding rod and a second sliding rod are arranged in parallel and are mounted on the box body; A fixed seat, both ends of which are fixed on the first slide bar and the second slide bar, and a first support plate is vertically arranged on the fixed seat, and a first clamp is arranged on the top of the first support plate; The movable seat is arranged opposite to the fixed seat, and both ends of the movable seat are slidably mounted on the first slide bar and the second slide bar, and a second support plate is vertically arranged on the movable seat, and a second clamp is arranged on the top of the second support plate; The driving mechanism is used to drive the movable seat to move toward the fixed seat; wherein The height of the second sliding rod is lower than that of the first sliding rod, and the fixed seat and the movable seat are arranged tilted.
2. The PFA pipe welding machine according to claim 1, characterized in that: The obtuse angle formed by the plane where the axes of the first sliding rod and the second sliding rod are located and the horizontal plane is 145° to 155°.
3. The PFA pipe welding machine according to claim 1, characterized in that: The vertical distance from the center of the first clamp to the fixing seat is 38-42 mm.
4. The PFA pipe welding machine according to claim 3, characterized in that: The box body includes two side plates arranged opposite to each other, which are used to fix the ends of the first slide bar and the second slide bar respectively; A notch is provided at a corner of the corresponding side plate between the ends of the first sliding rod and the second sliding rod, and the notch area covers the projection area of the first supporting plate or the second supporting plate on the side plate.
5. The PFA pipe welding machine according to claim 4, characterized in that: The notch comprises a first vertical side edge and a second horizontal side edge; The distance from the first side to the first sliding bar is 10-12 mm; The distance from the second side to the second sliding bar is 19-20 mm.
6. The PFA pipe welding machine according to claim 1, characterized in that: The PFA tube welding machine also includes: A rotating shaft is mounted on the box body; A heating element is mounted on the rotating shaft; The driving member is used for driving the rotating shaft to rotate so as to rotate the heating member between the first clamp and the second clamp.
7. The PFA pipe welding machine according to claim 1, characterized in that: The driving mechanism comprises: A mounting seat, both ends of which are fixed on the first slide bar and the second slide bar; The driving motor is fixed on the mounting seat, and a screw matched with the thread of the moving seat is installed on the output shaft of the driving motor.
8. The PFA pipe welding machine according to claim 1, characterized in that: The first support plate is convexly disposed on the side of the fixed seat facing the movable seat; The second supporting plate is convexly arranged on the side surface of the movable seat facing the fixed seat.
9. The PFA tube welding machine according to claim 8, characterized in that: The first slide bar is rotatably mounted with a baffle, and is located between the fixed seat and the movable seat, and is used for positioning the end face of the pipe to be welded; The movable seat is provided with a receiving groove for receiving the baffle mounting seat, so that the minimum distance between the first supporting plate and the second supporting plate is not greater than 4.4 mm.
10. The PFA tube welding machine according to claim 8, characterized in that The first support plate and the fixed seat, and the second support plate and the movable seat are integrally formed.