Dialyzer housing welding device and welding method thereof
By using a non-contact heating scheme and a dialyzer shell welding device with a copper-plated gold heating block, the problems of high cost and low versatility in dialyzer manufacturing equipment have been solved, enabling efficient welding of dialyzers of various specifications and improving the quality and pass rate of dialyzers.
Patent Information
- Application Number
- CN202310323782.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-30
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2043-03-30
AI Technical Summary
Existing dialyzer manufacturing equipment is costly, has low versatility, and is difficult to adapt to various models and specifications of dialyzers. Furthermore, its operation is complex, resulting in high labor costs. The complex equipment structure also affects the quality and pass rate of dialyzers.
The dialyzer shell welding device adopts a non-contact heating scheme, including a shell positioning mechanism, an end cap mounting mechanism, and a heating mechanism. It utilizes the stepped groove design of the heating block to achieve uniform heating, avoiding unevenness and contamination at the heat fusion interface. It uses a copper-plated gold heating block and multiple heating tubes for rapid heating, enabling it to adapt to dialyzers of various specifications.
It reduces equipment costs, improves the quality and pass rate of dialyzers, simplifies the operation process, adapts to different models and specifications of dialyzers, avoids unevenness and contamination of the heat-fused interface, and improves the versatility and efficiency of the equipment.
Smart Images
Figure CN116277986B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of dialyzer welding, and particularly relates to a dialyzer shell welding device and a welding method thereof. BACKGROUND
[0002] Blood purification, also known as dialysis in daily life, introduces the blood of a patient out of the body and purifies it through a dialysis device to remove certain pathogenic substances in the blood, purify the blood, and achieve the purpose of treating diseases. Hemodialysis is one of the methods for treating chronic renal failure. However, for the manufacture of existing dialyzers, the domestic market is still in a niche field, and the overall production cost is high. Various dialyzers and their manufacturing equipment vary in quality, but the unified feature is that there are many models of dialyzers for the same purpose. The dialyzers and their manufacturing equipment have low versatility and complex structures, making it difficult to adapt to a device for processing multiple models and specifications of dialyzers, resulting in high equipment costs, complex equipment operation, and high personnel training costs. SUMMARY
[0003] To overcome the above-mentioned deficiencies, the inventor of the present application has made long-term exploration and attempts, and through repeated experiments and efforts, continuous reform and innovation, and put forward a dialyzer shell welding device. The non-contact heating scheme is adopted, and the heating points of the end cover and the shell will not cause uneven heating, resulting in irregularity at the hot melt interface. It also avoids the situation of black ash, residual molten glue and other situations caused by direct contact with the heating block, avoids pollution to the welding site, and affects the quality and pass rate of the dialyzer. The heating block is provided with a stepped groove, so that the heating of the welding end face includes the end face and the side wall at the end face, and uniform heating is performed, and the hot melt quality is better.
[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is to provide a dialyzer shell welding device, which comprises:
[0005] The shell positioning mechanism is installed on the lifting platform, and when the lifting platform is raised to the highest point, the positioning clamping jaw is used to install and position the shell. When the lifting platform is lowered to the lowest point, the shell is consistent in height with the end cover.
[0006] The end cover mounting mechanism is installed on the moving platform, and the end cover mounting mechanism is used to install and position the end cover. The moving platform is used to move the installed end cover to the shell. After heating is completed, the end cover is pushed again to contact and weld with the shell.
[0007] The heating mechanism is composed of two half-circular heating blocks forming a heating ring, both of which are slidingly installed on the second sliding rail, the two half-circular heating blocks are folded to form a heating ring for heating, the heating mechanism is located between the shell positioning mechanism and the end cover installation mechanism and is slidingly installed on the first sliding rail, the heating mechanism is away from the shell positioning mechanism by the reset mechanism, when the moving platform moves towards the shell positioning mechanism, the heating mechanism is pushed to approach the shell positioning mechanism, when reaching the predetermined position, the heating mechanism simultaneously heats the shell and the end cover, and after heating is completed, the heating blocks move away from both ends on the second sliding rail.
[0008] According to the dialyzer shell welding device, the further preferred technical scheme is that the shell positioning mechanism comprises a mounting seat, a predetermined positioning support and a clamping jaw device, the mounting seat is located on the lifting platform, the predetermined positioning support is installed on the mounting seat, and the clamping jaw device is installed on both sides of the predetermined positioning support; the clamping jaw device comprises a positioning clamping jaw, a clamping jaw folding cylinder and a clamping jaw displacement cylinder, the positioning clamping jaw is composed of two half-circular clamping rings, the two clamping rings are installed on the clamping jaw folding cylinder, and the positioning clamping jaw and the clamping jaw folding cylinder are integrally installed on the clamping jaw displacement cylinder; the folding and movement of the two positioning clamping jaws are symmetrically operated; the clamping jaw folding cylinder and the clamping jaw displacement cylinder are symmetrically operated cylinders with two telescopic shafts or two separate cylinders.
[0009] According to the dialyzer shell welding device, the further preferred technical scheme is that the heating mechanism comprises a heating ring, a mounting plate, a first sliding rail, a second sliding rail and a heating mechanism cylinder, the heating ring is formed by folding two half-circular heating blocks, the two heating blocks are located at the upper ends of the two mounting plates, the lower ends of the mounting plates are slidingly installed on the second sliding rail, the sliding direction is perpendicular to the shell mounting direction, the two mounting plates are driven by the heating mechanism cylinder and symmetrically slide, and the second sliding rail is integrally installed on the first sliding rail after being installed on the mounting table.
[0010] According to the dialyzer shell welding device, the further preferred technical scheme is that the heating block is made of copper-plated gold material, and a plurality of heating pipes are arranged at the outer edge of the heating block.
[0011] According to the dialyzer shell welding device, the further preferred technical scheme is that the heating block is made of copper-plated gold material, and a plurality of heating pipes are arranged at the outer edge of the heating block.
[0012] According to the dialyzer shell welding device, the further preferred technical scheme is that the heating block is made of copper-plated gold material, and a plurality of heating pipes are arranged at the outer edge of the heating block.
[0013] The further preferred technical scheme of the dialyzer shell welding device is that the end cover mounting mechanism comprises an end cover jig, an adjusting table, a moving platform and a push tongue, the end cover jig is mounted on the adjusting table and then mounted on the moving platform, the moving platform is a servo sliding table module, the push tongue is mounted on the sliding block of the servo sliding table module, and the push tongue pushes the heating mechanism to approach the shell positioning mechanism after the push tongue contacts the heating mechanism when the end cover mounting mechanism slides to the shell positioning mechanism.
[0014] The further preferred technical scheme of the dialyzer shell welding device is that the positioning clamps of the shell positioning mechanism, the end cover jigs of the end cover mounting mechanism and the heating blocks of the heating mechanism are detachably mounted by bolts, and all have multiple sizes to adapt to dialyzer shells of different pipe diameters.
[0015] The further preferred technical scheme of the dialyzer shell welding device is that the end cover mounting mechanism and the heating mechanism are symmetrically arranged on both sides of the shell positioning mechanism to realize synchronous welding of the end covers at both ends of the shell.
[0016] A dialyzer shell welding method is based on a dialyzer shell welding device and comprises the following steps.
[0017] S1, placing the shell and the end cover: the lifting platform is raised, the positioning clamps are opened, the shell is placed on the predetermined positioning support, and the end cover is mounted in the end cover jig;
[0018] S2, adjusting the position of the shell: the positioning clamps are closed to cover the shell, the positioning clamps are symmetrically moved to the two ends to centrally position and fix the shell, the lifting platform is lowered to make the center line of the shell coincide with the center line of the end cover;
[0019] S3, preheating the heating mechanism: the heating blocks of the heating mechanism are closed to form a heating ring, and the heating ring is heated to a preset temperature;
[0020] S3, moving the welding surface: the moving platform drives the end cover to move to the shell, after the push tongue contacts the mounting plate of the heating mechanism, the push tongue pushes the heating mechanism to move together, so that the heating ring of the heating mechanism simultaneously approaches but does not contact the welding surface of the end cover and the shell;
[0021] S4, welding: the heating ring heats and melts the welding surface, after the heating is completed, the heating blocks of the heating ring are separated to the two sides to leave space, after the heating is completed, the moving platform is responsible for pushing again to make the end cover contact and weld with the shell, and a period of time is kept for cooling;
[0022] S5, reset: after the welding is completed, the moving platform retreats to the initial position to wait for the installation of the end cover again, the dialyzer shell after the hot melting is left on the shell positioning mechanism, the lifting platform of the shell positioning mechanism is raised, then the positioning clamping jaw is opened, and the dialyzer shell is removed and placed on the shell again.
[0023] Compared with the prior art, the technical scheme of the present application has the following advantages / benefits:
[0024] 1. The artificial placement of the shell and the end cover can greatly reduce the overall cost of the equipment. The positioning clamping jaw of the shell positioning mechanism, the end cover jig of the end cover mounting mechanism and the heating block of the heating mechanism are all detachably mounted by bolts, and all have multiple sizes to adapt to dialyzer shells of different pipe diameters, which can be applied to dialyzers of different specifications. When necessary, new corresponding groove designs can be made to the structure of the positioning clamping jaw of the shell positioning mechanism, the end cover jig of the end cover mounting mechanism and the heating block of the heating mechanism, so that they can be applied to other models of dialyzers, and the adjustment parameters of the adjustment table and the moving platform can be adjusted conveniently and quickly.
[0025] 2. The non-contact heating scheme is adopted, which will not cause uneven heating of the heating points of the end cover and the shell, resulting in irregularity of the hot melting interface, and also avoids the situation of black ash and residual molten glue caused by direct contact with the heating block, thereby avoiding pollution to the melting interface and affecting the quality and yield of the dialyzer. The heating block is provided with a stepped groove, so that the heating of the melting end face includes the end face and the sidewall at the end face, and the heating is uniform, and the quality of hot melting is better.
[0026] 3. The heating block is made of copper plated with gold, and multiple heating pipes are arranged on the outer edge of the heating block to realize rapid heating and rapid heat conduction. The gold plating layer can quickly transfer heat, and when the melting surface of the end cover and the shell contacts the surface of the heating block, it can effectively prevent the adhesion of molten glue. At the same time, the gold plating layer is difficult to react with air under high temperature conditions, so the surface of the heating block can be kept clean and tidy, without blackening and residual glue black ash, which can improve the yield of the dialyzer. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.
[0028] Figure 1 is a structural schematic view of a dialyzer shell welding device of the present application.
[0029] Figure 2 is Figure 1 is a partial enlarged view of A in FIG.
[0030] Figure 3 is another angle of the structure of the dialyzer shell welding device.
[0031] Figure 4 is a front view of the dialyzer shell welding device.
[0032] Figure 5 is a right view of the dialyzer shell welding device.
[0033] Figure 6 is Figure 5 is a sectional view of A-A in FIG.
[0034] In the figure, the labels are respectively: 1. shell positioning mechanism 11. mounting seat 12. pre-positioning support 13. clamping jaw device 131. positioning clamping jaw 132. clamping jaw closing cylinder 133. clamping jaw displacement cylinder 134. clamping jaw ring
[0035] 2. end cover mounting mechanism 21. end cover jig 22. adjusting table 23. moving platform 24. tongue pusher
[0036] 3. heating mechanism 31. heating ring 311. heating block 312. heating pipe 313. recess 32. mounting plate 33. first sliding rail 34. second sliding rail 35. heating mechanism cylinder 36. protective cover
[0037] 4. lifting platform 5. moving platform 6. reset mechanism 7. threading leg. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the detailed description of the embodiments of the present application provided below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.
[0039] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it can not be further defined and explained in subsequent drawings.
[0040] Example 1:
[0041] AsFigures 1-6 As shown in the figure, a dialyzer shell welding device comprises:
[0042] The shell positioning mechanism 1 is installed on the lifting platform 4, the positioning shell is installed by the positioning clamping jaw 131 when the lifting platform 4 is raised to the highest point, the shell is aligned with the end cover when the lifting platform 4 is lowered to the lowest point, the lifting platform 4 only needs to realize accurate positioning at the lowest point, and the position of the shell is accurate, and there is no deflection, etc., so that the lifting demand can be realized by using a cylinder or a lead screw structure, and in order to realize smooth lifting and prevent deflection, the lifting platform 4 is also provided with a sliding rail to realize the guidance of the lifting direction; the shell positioning mechanism 1 comprises a mounting seat 11, a pre-positioning support 12 and a clamping jaw device 13, the mounting seat 11 is located on the lifting platform 4, the pre-positioning support 12 is installed on the mounting seat 11, the pre-positioning support 12 adopts two circular groove support blocks, which can prevent the shell from falling after being placed, facilitate the clamping of the positioning clamping jaw 131, and the like, the clamping jaw device 13 is installed on both sides of the pre-positioning support 12, the clamping jaw device 13 comprises a positioning clamping jaw 131, a clamping jaw closing cylinder 132 and a clamping jaw displacement cylinder 133, the positioning clamping jaw 131 is formed by closing two semicircular clamping jaw rings 134, the two clamping jaw rings 134 are installed on the clamping jaw closing cylinder 132, the positioning clamping jaw 131 and the clamping jaw closing cylinder 132 are integrally installed on the clamping jaw displacement cylinder 133, the closing and movement of the two positioning clamping jaws 131 are symmetrically operated, the clamping jaw closing cylinder 132 and the clamping jaw displacement cylinder 133 are both symmetrically operated cylinders with two telescopic shafts, or two separate cylinders are synchronously operated. Of course, the driving of the positioning clamping jaw 131 can also be realized by relying on other similar mechanical structures, when the positioning clamping jaw 131 clamps the shell, the shell can slide in the closed positioning clamping jaw 131, that is, there is a small gap between the shell and the positioning clamping jaw 131, so that the positioning effect can be naturally formed when the positioning clamping jaw 131 moves symmetrically to the left and right sides, the positioning relies on the steps at both ends of the shell, as long as the positioning clamping jaw 131 is symmetrically operated, the shell can automatically slide to adjust the position to realize the positioning, because there is a certain tolerance error between the shell and the shell, the small gap will not affect the accuracy of the welding position, and at the same time, the welding is to connect the melted end cover and the shell together, the melting part has a wide adaptation range during welding, and there is no problem of inaccurate connection.
[0043] End cap mounting mechanism 2, end cap mounting mechanism 2 is installed on the moving platform 523, end cap mounting mechanism 2 is used for installing positioning end cap, moving platform 523 is used for moving the end cap installed in place to the shell, and is responsible for advancing again after heating is completed to make the end cap contact with the shell and fuse together;The end cap mounting mechanism 2 includes end cap jig 21, adjusting table 22, moving platform 523, push tongue 24, the end cap jig 21 is installed on the adjusting table 22 and then integrally installed on the moving platform 523, the moving platform 523 is a servo slide module, the push tongue 24 is installed on the slider of the servo slide module, when the end cap mounting mechanism 2 slides to the shell positioning mechanism 1, the push tongue 24 contacts the heating mechanism 3 and then pushes the heating mechanism 3 to approach the shell positioning mechanism 1, the adjusting table is used for adjusting the height of the end cap jig 21 and the distance between the end cap jig 21 and the heating ring 31. That is, the end cap mounting mechanism 2 and the heating mechanism 3 are advanced simultaneously by using the moving platform 523, and the two semicircular heating blocks 311 of the heating mechanism 3 can be opened in the front-back direction (that is, perpendicular to the direction of the paper), which provides conditions for separately driving the end cap mounting mechanism 2 to advance, so that the power device for advancing the heating mechanism 3 can be saved, and the gap between the end cap mounted on the end cap jig 21 and the heating ring 31 can be realized by adjusting the position of the push tongue 24 (adjusting by using the adjusting table 22), the gap between the heating ring 31 and the shell is realized by the initial stop position of the moving platform 523, and the non-contact heat fusion is realized. The adjusting table 22 realizes the adjustment of the height of the end cap jig and the gap between the welding surface of the end cap and the heating ring 31, so that various sizes of dialyzer shells can be simply adapted (only the height and left-right position of the end cap jig 21 need to be adjusted (the size of the end cap jig 21, the positioning clamp jaw 131 and the heating ring 31 needs to be replaced to adapt to different sizes of dialyzer shells)), and a plurality of combination blocks are provided on the adjusting table 22 for fixing together by using fixing screws, and only the fixing screws need to be screwed to realize the adjustment of the position, and the mechanical structure capable of realizing the adjustment is not complex, and there are many similar mature technologies, which will not be described here. As long as the up-down direction and the left-right direction can be adjusted.
[0044] The positioning clamp jaw 131 of the shell positioning mechanism 1, the end cap jig 21 of the end cap mounting mechanism 2 and the heating block 311 of the heating mechanism 3 are detachably installed by bolts, and have multiple sizes to adapt to different pipe diameters of dialyzer shells, that is, one equipment can fuse multiple dialyzer shells. The specific situation is that all jigs are divided into three specifications, namely large, medium and small, which correspond to A, B and C three kinds of marks respectively. After replacing the jigs, it is necessary to check and adjust whether the jigs are concentric by manual mode, and measure the heat fusion gap on both sides by using a feeler gauge.
[0045] The heating mechanism 3 is composed of two semi-circular heating blocks 311 forming a heating ring 31, both of which are slidingly installed on the second slide rail 34, and the two semi-circular heating blocks 311 are folded to form the heating ring 31 for heating. The heating mechanism 3 is located between the shell positioning mechanism 1 and the end cover mounting mechanism 2 and is slidingly installed on the first slide rail 33. The heating mechanism 3 is away from the shell positioning mechanism 1 by the reset mechanism 6. When the moving platform 523 moves towards the shell positioning mechanism 1, it pushes the heating mechanism 3 to approach the shell positioning mechanism 1. When reaching the predetermined position, the heating mechanism 3 simultaneously heats the shell and the end cover. After heating is completed, the heating blocks 311 move away from both ends on the second slide rail 34.
[0046] The heating mechanism 3 includes a heating ring 31, a mounting plate 32, a first slide rail 33, a second slide rail 34, and a heating mechanism cylinder 35. The heating ring 31 is formed by folding two semi-circular heating blocks 311, and the two heating blocks 311 are located at the upper ends of the two mounting plates 32. The lower ends of the mounting plates 32 are slidingly installed on the second slide rail 34, and the sliding direction is perpendicular to the shell mounting direction. The two mounting plates 32 are driven by the heating mechanism cylinder 35 and symmetrically slide, so that the heating ring 31 can open and close in the front-back direction (perpendicular to the paper surface direction). The second slide rail 34 is installed on the mounting table and then installed on the first slide rail 33 as a whole, so that the heating mechanism 3 can slide in the left-right direction. The reset mechanism 6 is a spring column structure that can be forcibly pushed back to the middle position by the push tongue 24 of the moving platform 523 when the heating ring 31 avoids the welding position. After the moving platform 523 retreats, the reset mechanism 6 pushes the heating blocks 311 again to reset for the next heating. The first slide rail 33 of the heating mechanism 3 can use the same track as the moving platform 523 of the end cover mounting mechanism 2, which is convenient for operation and simplifies the structure.
[0047] The heating block 311 is made of copper-plated gold material. A plurality of heating pipes 312 are arranged on the outer edge of the heating block 311 to meet the requirements of uniform heating and rapid heating. Copper material has rapid heat transfer, and gold plating can prevent the formation of glue solution due to the adhesion of the melted end cover or shell on the surface.
[0048] The heating block 311 is provided with a stepped recess 313 on both sides, which matches the diameter of the shell and the end cover. When heated, the shell and the end cover are located in the recess 313, achieving uniform heating around the end of the dialyzer shell and the end cover. The stepped heating block 311 is folded to form a recess 313 disc structure. The recess 313 disc is used to heat the welded end face, and the side of the recess 313 is used to heat the side of the welded end face, so that the entire welded end face is uniformly heated. When heated, the distance between the end cover or the shell to be welded and the heating block 311 is actually 5-40 silk. The heating is by thermal radiation melting, and there is no direct contact. The surface of the heating block 311 is covered with a gold-coated coating. Even if the welded end face deforms due to melting and contacts the heating block 311, the gold coating has good anti-adhesion effect. Avoiding the adhesion of the melted glue on the heating block 311, causing the surface of the heating block 311 to be continuously heated, resulting in fire, blackening, etc. At the same time, the non-contact heating method can avoid uneven heating caused by high heating temperature and low heat conduction capacity of the shell or end face. Avoiding direct contact with the glue residue caused by continuous heating, resulting in fire, blackening, and blackening of the welded part. The distance between the shell welding surface and the side of the heating ring 31 is preferably ≤0.4mm. The gap can be adjusted by the moving distance of the point motion end cover moving platform 523. The gap between the end cover welding surface and the heating ring 31 is adjusted by manually adjusting the adjusting table 22. The gap between the edge of the cover and the heating ring 31 is preferably ≤0.4mm, and finally the slide fastening bolt is locked.
[0049] The heating block 311 is provided with a stepped recess 313 on both sides, which matches the diameter of the shell and the end cover. When heated, the shell and the end cover are located in the recess 313, achieving uniform heating around the end of the dialyzer shell and the end cover. The stepped heating block 311 is folded to form a recess 313 disc structure. The recess 313 disc is used to heat the welded end face, and the side of the recess 313 is used to heat the side of the welded end face, so that the entire welded end face is uniformly heated. When heated, the distance between the end cover or the shell to be welded and the heating block 311 is actually 5-40 silk. The heating is by thermal radiation melting, and there is no direct contact. The surface of the heating block 311 is covered with a gold-coated coating. Even if the welded end face deforms due to melting and contacts the heating block 311, the gold coating has good anti-adhesion effect. Avoiding the adhesion of the melted glue on the heating block 311, causing the surface of the heating block 311 to be continuously heated, resulting in fire, blackening, etc. At the same time, the non-contact heating method can avoid uneven heating caused by high heating temperature and low heat conduction capacity of the shell or end face. Avoiding direct contact with the glue residue caused by continuous heating, resulting in fire, blackening, and blackening of the welded part. The distance between the shell welding surface and the side of the heating ring 31 is preferably ≤0.4mm. The gap can be adjusted by the moving distance of the point motion end cover moving platform 523. The gap between the end cover welding surface and the heating ring 31 is adjusted by manually adjusting the adjusting table 22. The gap between the edge of the cover and the heating ring 31 is preferably ≤0.4mm, and finally the slide fastening bolt is locked.
[0050] The heating block 311 is provided with a stepped recess 313 on both sides, which matches the diameter of the shell and the end cover. When heated, the shell and the end cover are located in the recess 313, achieving uniform heating around the end of the dialyzer shell and the end cover. The stepped heating block 311 is folded to form a recess 313 disc structure. The recess 313 disc is used to heat the welded end face, and the side of the recess 313 is used to heat the side of the welded end face, so that the entire welded end face is uniformly heated. When heated, the distance between the end cover or the shell to be welded and the heating block 311 is actually 5-40 silk. The heating is by thermal radiation melting, and there is no direct contact. The surface of the heating block 311 is covered with a gold-coated coating. Even if the welded end face deforms due to melting and contacts the heating block 311, the gold coating has good anti-adhesion effect. Avoiding the adhesion of the melted glue on the heating block 311, causing the surface of the heating block 311 to be continuously heated, resulting in fire, blackening, etc. At the same time, the non-contact heating method can avoid uneven heating caused by high heating temperature and low heat conduction capacity of the shell or end face. Avoiding direct contact with the glue residue caused by continuous heating, resulting in fire, blackening, and blackening of the welded part. The distance between the shell welding surface and the side of the heating ring 31 is preferably ≤0.4mm. The gap can be adjusted by the moving distance of the point motion end cover moving platform 523. The gap between the end cover welding surface and the heating ring 31 is adjusted by manually adjusting the adjusting table 22. The gap between the edge of the cover and the heating ring 31 is preferably ≤0.4mm, and finally the slide fastening bolt is locked.
[0051] A dialyzer shell welding method based on a dialyzer shell welding device, comprising the following steps:
[0052] S1, place the shell and the end cover: the lifting platform 4 is raised, the positioning clamping jaw 131 is opened, the shell is placed on the pre-positioning support 12, and the end cover is installed in the end cover jig 21. The end cover jig 21 is a cylinder with a cylindrical groove, and a notch is provided on the cylinder wall for accommodating the interface of the end cover, and the position of the interface is used for circumferential positioning. The depth of the cylindrical groove is used to control the position of the center line direction of the end cover;
[0053] S2, housing position adjustment: the positioning clamping jaw 131 is folded to fit the housing, the positioning clamping jaw 131 is symmetrically moved to the two ends, so that the shell is centrally positioned and fixed, the lifting platform 4 is lowered to make the center line of the shell coincide with the center line of the end cover;
[0054] S3, preheating of the heating mechanism 3: the heating blocks 311 of the heating mechanism 3 are folded to form a heating ring 31, the heating ring 31 is warmed up to a preset temperature, of course, the heating mechanism 3 can be heated after starting, and the temperature can be warmed up to the preset temperature, and the heating can be continuously performed, and the heating mechanism 3 can be close to the melting end face.
[0055] S3, melting surface movement: the moving platform 523 drives the end cover to move towards the housing, after the push tongue 24 contacts the mounting plate 32 of the heating mechanism 3, the push tongue 24 pushes the heating mechanism 3 to move, so that the heating ring 31 of the heating mechanism 3 is close to but does not contact the melting surface of the end cover and the housing, and this step is to adjust the position of the melting surface, and is the position adjustment of melting and docking.
[0056] S4, melting: the heating ring 31 melts the melting surface, after the heating is completed, the heating blocks 311 of the heating ring 31 are separated to the two sides to leave space (for stopping the end cover and the housing from being continuously heated, and for the end cover to continue to advance and contact the housing for melting), after the heating is completed, the moving platform 523 is responsible for advancing again, so that the end cover and the housing are in contact and melted together, and a period of time is kept for cooling;
[0057] S5, reset: after the melting is completed, the moving platform 523 retreats to the initial position to wait for the end cover to be installed again, the dialyzer housing that is completed by hot melting is left on the housing positioning mechanism 1, the lifting platform 4 of the housing positioning mechanism 1 is raised, then the positioning clamping jaw 131 is opened, and the dialyzer housing can be taken down and placed again. In the present application, the housing and the end cover are placed manually, and the dialyzer housing is also taken down manually, the housing with a sealing ring is placed on the middle predetermined positioning support 12 by manual work, and the product is placed as centrally as possible. Of course, the placement can be further improved mechanically, and it is not difficult for the prior art to realize this function.
[0058] The heating mechanism 3 of the present application adopts a high-power heating piece, so that the product hot melting surface is uniformly and rapidly heated, and the service life of the copper heating block 311 is long. The high-precision double-track servo mechanism can ensure the accuracy of long-time reciprocating motion. The support base plate is made of titanium alloy material, and has good thermal stability and positioning accuracy.
[0059] The plurality of threading legs 7 are symmetrically arranged at the lower end of the whole device, which is used for installing the whole device on an operation table, and reducing external lines by threading the threading legs 7 to prevent interference with worker operation.
[0060] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0061] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0062] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.
[0063] The above is only the preferred embodiment of the present application, and it should be pointed out that the above preferred embodiment should not be regarded as a limitation on the present application, and the protection scope of the present application should be limited by the scope defined by the claims. For those skilled in the art, without departing from the spirit and scope of the present application, a number of improvements and refinements can also be made, which should also be regarded as the protection scope of the present application.
Claims
1. A dialyzer housing welding apparatus, characterized by, It includes: The shell positioning mechanism is installed on the lifting platform, and the positioning clamping jaw is used to install the positioning shell when the lifting platform rises to the highest point, and the shell is consistent with the end cover when the lifting platform descends to the lowest point; The end cover mounting mechanism is installed on the moving platform, and the end cover mounting mechanism is used to install the positioning end cover, and the moving platform is used to move the installed end cover to the shell, and is responsible for advancing again after heating to make the end cover contact and fuse with the shell; The heating mechanism includes a heating ring, a mounting plate, a first sliding rail, a second sliding rail, and a heating mechanism cylinder, the heating ring is formed by folding two semicircular heating blocks, the two heating blocks are located at the upper end of the two mounting plates, the lower end of the mounting plate is slidingly installed on the second sliding rail, the sliding direction is perpendicular to the shell installation direction, the two mounting plates are symmetrically slidingly driven by the heating mechanism cylinder, and the second sliding rail is installed on the mounting table and then integrally installed on the first sliding rail; The two semicircular heating blocks are folded into a heating ring for heating, the heating mechanism is located between the shell positioning mechanism and the end cover mounting mechanism and is slidingly installed on the first sliding rail, the heating mechanism is driven away from the shell positioning mechanism by the reset mechanism, the moving platform moves towards the shell positioning mechanism, the heating mechanism is pushed towards the shell positioning mechanism, the heating mechanism simultaneously heats the shell and the end cover when reaching the predetermined position, and the heating blocks move away from both ends on the second sliding rail after heating.
2. A dialyzer housing welding device according to claim 1, characterized in that The shell positioning mechanism includes a mounting seat, a predetermined positioning support and a clamping jaw device, the mounting seat is located on the lifting platform, the predetermined positioning support is installed on the mounting seat, the clamping jaw device is installed on both sides of the predetermined positioning support, the clamping jaw device includes a positioning clamping jaw, a clamping jaw folding cylinder and a clamping jaw displacement cylinder, the positioning clamping jaw is formed by folding two semicircular clamping rings, the two clamping rings are installed on the clamping jaw folding cylinder, the positioning clamping jaw and the clamping jaw folding cylinder are integrally installed on the clamping jaw displacement cylinder, and the folding and movement of the two positioning clamping jaws are symmetrically operated, the clamping jaw folding cylinder and the clamping jaw displacement cylinder are both symmetrically operated cylinders with two telescopic shafts, or two separate cylinders are synchronously operated.
3. The dialyzer housing welding device of claim 1, wherein The heating block is made of copper gold plating material, and a plurality of heating pipes are arranged on the outer edge of the heating block.
4. A dialyzer housing welding device according to claim 3, characterized in that Both sides of the heating block are provided with steps to form recesses, which are matched with the diameters of the shell and the end cover respectively, and the shell and the end cover are located in the recesses during heating, so that the end portions of the dialyzer shell and the end cover are uniformly heated.
5. A dialyzer housing welding device according to claim 4, characterized in that The heating block is provided with a protective cover outside.
6. The dialyzer housing welding device of claim 1, wherein The end cover mounting mechanism includes an end cover jig, an adjusting table, a moving platform and a push tongue, the end cover jig is installed on the adjusting table and then integrally installed on the moving platform, the moving platform is a servo sliding table module, the push tongue is installed on the sliding block of the servo sliding table module, and the end cover mounting mechanism is in contact with the heating mechanism when sliding towards the shell positioning mechanism, and then pushes the heating mechanism close to the shell positioning mechanism, and the adjusting table is used to adjust the height of the end cover jig and the distance between the end cover jig and the heating ring.
7. The dialyzer housing welding device of claim 1, wherein The positioning clamping jaw of the shell positioning mechanism, the end cover jig of the end cover mounting mechanism and the heating block of the heating mechanism are all detachably installed by bolts, and have multiple sizes to adapt to dialyzer shells of different diameters.
8. The dialyzer housing welding device of claim 1, wherein, The end cover mounting mechanism and the heating mechanism are symmetrically arranged on both sides of the shell positioning mechanism to realize synchronous fusion of the end covers at both ends of the shell.
9. A method of welding a dialyzer housing, characterized in that, The steps of the dialyzer shell fusion device based on any one of claims 1-8 include: S1, placing the shell and the end cover: the lifting platform is raised, the positioning clamping jaw is opened, the shell is placed on the predetermined positioning support, and the end cover is mounted in the end cover jig; S2, adjusting the position of the shell: the positioning clamping jaw is closed to fit the shell inside, the positioning clamping jaw is symmetrically moved to the two ends to centrally position and fix the shell, the lifting platform is lowered to make the center line of the shell coincide with the center line of the end cover; S3, preheating preparation of the heating mechanism: the heating blocks of the heating mechanism are closed to form a heating ring, and the heating ring is heated to a preset temperature; S3, moving the fusion surface: the moving platform drives the end cover to move towards the shell, after the push tongue contacts the mounting plate of the heating mechanism, the push tongue pushes the heating mechanism to move together, so that the heating ring of the heating mechanism is close to but not in contact with the fusion surface of the end cover and the shell; S4, fusion: the heating ring heats and melts the fusion surface, after heating is completed, the heating blocks of the heating ring are separated to the two sides to leave space, after heating is completed, the moving platform is responsible for advancing again to make the end cover contact and fuse with the shell, and a period of time is kept for cooling; S5, resetting: after fusion is completed, the moving platform retreats to the initial position to wait for installation of the end cover again, the dialyzer shell fused by heat is left on the shell positioning mechanism, the lifting platform of the shell positioning mechanism is raised, then the positioning clamping jaw is opened, and the dialyzer shell is taken down to place the shell again.
Citation Information
Patent Citations
Filter core end cover welding machine
CN102729467A
Dialyzer shell welding device
CN219727229U