Universal canister nonwoven welding base

Abstract

The application discloses a universal carbon tank non-woven fabric welding base, which comprises a thimble, a movable plate, a fixed plate, an elastic connecting body, a supporting plate and a translation locking structure; a plurality of second semicircular arc portions are arranged on a through slot of the movable plate; a plurality of first semicircular arc portions are arranged on a convex strip of the fixed plate, and a bottom of the convex strip is provided with a fixed plate through hole corresponding to a first space portion; the movable plate is movably arranged above the fixed plate; the second semicircular arc portions and the first semicircular arc portions jointly form the first space portion for the thimble to penetrate; each thimble penetrates the first space portion and the fixed plate through hole in sequence and abuts against the upper end of the elastic connecting body; the translation locking structure is used for moving the movable plate relative to the fixed plate, so that the second semicircular arc portions and the first semicircular arc portions are mutually dislocated to lock the thimble. The thimble can be fixed by moving the movable plate through the translation locking structure, and the thimble arranged in an array can adapt to carbon tanks of different sizes.

Description

Technical Field

[0001] This invention relates to the field of charcoal canister manufacturing, and specifically to a universal nonwoven fabric welding base for charcoal canisters. Background Technology

[0002] Currently, the charcoal canister is a crucial component of the fuel evaporation control system. Filled with activated carbon powder, it adsorbs fuel vapors evaporating from the fuel tank. Activated carbon is typically granular or columnar in shape and is usually quite small. Therefore, several pieces of non-woven fabric must be incorporated into the canister during filling to prevent carbon powder particles from leaking out and causing malfunction. The non-woven fabric is usually installed inside the canister, between the activated carbon and the nozzle. Supporting ribs are designed between the nozzle and the non-woven fabric, allowing the activated carbon to directly contact the fabric. During vibration, the activated carbon powder inside the canister can deform or curl the soft non-woven fabric, leading to leakage. To avoid this problem, ultrasonic welding is typically used to weld the non-woven fabric and the canister together.

[0003] Existing ultrasonic welding processes for nonwoven fabrics require a welding head and a base to support the canister. Since the shapes of the canisters vary across different projects, each canister requires a unique nonwoven welding base. This necessitates manufacturing different nonwoven welding bases, increasing manufacturing costs. Furthermore, each time a different canister is used, the corresponding nonwoven welding base needs to be replaced, increasing mold changeover time.

[0004] Therefore, it is urgent to propose a solution to the above problems. Summary of the Invention

[0005] This invention provides a universal nonwoven fabric welding base for charcoal canisters. By setting multiple arrayed pins and elastic connectors, it can adapt to charcoal canisters of different sizes. The pins are then fixed by a translational locking structure, so that charcoal canisters of different sizes can be fixed on the welding base. This solves the problem that welding bases in the prior art cannot adapt to charcoal canister products of different sizes.

[0006] This invention provides a universal nonwoven fabric welding base for carbon canisters, including a pin, a movable plate, a fixed plate, an elastic connector, a support plate, and a translational locking structure;

[0007] The movable plate has multiple parallel through slots, and each through slot has multiple second semi-circular arc portions spaced along its length on its sidewall.

[0008] The upper surface of the convex strip of the fixing plate is provided with a plurality of parallel convex strips, and a plurality of first semi-circular arc portions are provided at intervals along the length direction on the side wall of each convex strip. The bottom of the convex strip is provided with a fixing plate through hole corresponding to the first semi-circular arc portion along the length direction.

[0009] The sidewall of a single through groove is embedded in the sidewall of a single protrusion, such that the openings of the second semicircular arc portion and the first semicircular arc portion are arranged opposite to each other;

[0010] The second semicircular arc portion and the first semicircular arc portion together form a first space portion through which the ejector pin passes, and the first space portion corresponds to the through hole of the fixing plate; each ejector pin passes through the first space portion and the through hole of the fixing plate in sequence, and is fixedly mounted on the support plate by an elastic connector, and the support plate is fixedly connected to the fixing plate.

[0011] The translational locking structure is used to move the movable plate relative to the fixed plate along the length of the convex strip, so that the second semicircular part and the first semicircular part are misaligned to lock the ejector pin.

[0012] Furthermore, the translational locking structure includes a fixed plate inclined surface and a movable plate inclined surface respectively disposed on the opposite surfaces of the fixed plate and the movable plate, and a locking member for pressing the movable plate and the fixed plate together; the fixed plate inclined surface and the movable plate inclined surface correspond to each other and are inclined along the length direction of the protrusion; the locking member is a component for pressing the fixed plate inclined surface and the movable plate inclined surface on the opposite surfaces of the fixed plate and the movable plate together.

[0013] Furthermore, the locking component includes multiple first and second screws located at both ends of the through groove, and a first and second fastening nuts respectively sleeved on the upper ends of the first and second screws. The first and second screws pass through the support plate, the fixed plate, and the movable plate from bottom to top. The movable plate has multiple first through holes with a diameter larger than the outer diameter of the first and second screws. By tightening the first fastening nuts, the downward pressure of the movable plate on the fixed plate is converted into a thrust that moves along the length of the through groove, causing the second semicircular portion and the first semicircular portion to be misaligned, thereby fixing the ejector pin.

[0014] Furthermore, the lower ends of the first screw and the second screw are respectively provided with a detachable third fastening nut and a fourth fastening nut, which are used to fix the support plate and the fixing plate, and to support the entire welding base.

[0015] Furthermore, the radii of curvature of a single first semicircular arc portion and a single second semicircular arc portion are the same, the opening directions of two adjacent first semicircular arc portions on the same convex strip are opposite, and the opening directions of two adjacent second semicircular arc portions on the same through groove are opposite.

[0016] Furthermore, the elastic connector includes a plurality of springs corresponding one-to-one with the ejector pins, and the support plate is provided with blind holes for fixing the lower ends of the springs. The number of blind holes corresponds one-to-one with the number of springs, and the upper end of the spring abuts against the ejector pin.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The welding base of the present invention, by setting up mutually cooperating ejector pins, movable plates, fixed plates, elastic connectors, support plates, and translational locking structures, and by setting up multiple arrayed ejector pins and their cooperating elastic connectors, can automatically adjust the required number of ejector pins according to different can shape, thereby reducing the production and management costs of carbon canisters, shortening the debugging time of welding tooling, and improving product manufacturing efficiency; in addition, the translational locking structure moves the movable plate to fix the ejector pins, and through the cooperation of the ejector pins around the carbon canister, the carbon canister is better fixed.

[0019] 2. By setting mutually cooperating movable plate inclined surfaces and fixed plate inclined surfaces, and the angle between the fixed plate inclined surface and the horizontal plane is not less than the angle between the movable plate inclined surface and the horizontal plane, this invention ensures that during the fastener tightening process, the movable plate can move smoothly along the length of the carbon canister relative to the fixed plate, thus ensuring the overall stability of the entire welding base.

[0020] 3. The present invention provides a first semi-circular arc portion and a second semi-circular arc portion that cooperate with each other. The diameter of the first circular hole formed by the first semi-circular arc portion and the second semi-circular arc portion is larger than the outer diameter of the ejector pin, so that the movable plate can move relative to the fixed plate and lock the upper part of the ejector pin. Then, the top of the elastic connector is abutted against the step at the bottom of the middle connecting part of the ejector pin, thereby preventing the lower end of the middle connecting part of the ejector pin from swaying left and right, thus fixing the entire ejector pin. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the welding base with carbon canister body according to an embodiment of the present invention;

[0022] Figure 2 This is a top view of the overall three-dimensional structure of the welding base with carbon canister body according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Sectional view of section FF;

[0024] Figure 4 for Figure 3 Enlarged diagram of point G in the middle;

[0025] Figure 5 This is an exploded view of the three-dimensional structure of the welding base according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the ejector pin according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the overall structure of the movable plate in an embodiment of the present invention;

[0028] Figure 8 This is a top view of the movable plate in an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the overall structure of the fixing plate in an embodiment of the present invention;

[0030] Figure 10 This is a top view of the movable plate in an embodiment of the present invention;

[0031] Figure 11 for Figure 10 Sectional view of section DD;

[0032] Figure 12 This is a schematic diagram of the structure of the elastic connector according to an embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the support plate structure according to an embodiment of the present invention;

[0034] Figure 14 This is a schematic diagram of the fastener structure according to an embodiment of the present invention;

[0035] Figure 15 This is a top view of the fixed plate, movable plate, and support plate in their initial state according to an embodiment of the present invention.

[0036] Figure 16 for Figure 15 Sectional view of the C-section;

[0037] Figure 17 for Figure 15 Enlarged schematic diagram of the structure at point A in the middle;

[0038] Figure 18 This is a top view of the fixed plate, movable plate, and support plate in the locked state according to an embodiment of the present invention;

[0039] Figure 19 for Figure 18 Enlarged schematic diagram of the structure at point E in the middle;

[0040] Figure 20 for Figure 18 Enlarged schematic diagram of the structure at point B;

[0041] Figure 21 for Figure 20 Add a diagram of the thimble;

[0042] Reference numerals: 1. Ejector pin; 11. Upper part of ejector pin; 12. Middle connecting part of ejector pin; 13. Lower part of ejector pin; 2. Movable plate; 21. Protrusion of movable plate; 22. Inclined surface of movable plate; 23. Through groove; 23a. Second semicircular arc part; 24. Fourth semicircular arc part; 25. Chamfer; 3. Fixed plate; 31. Recessed part of fixed plate; 32. Inclined surface of fixed plate; 33. Protrusion; 33a. First semicircular arc part; 34. Side part of fixed plate; 34a. Third semicircular arc part; 35. Limiting part of fixed plate; 36. Through hole of fixed plate; 4. Elasticity Connector; 41, Spring; 41a, Spring top; 41b, Spring bottom; 5, Support plate; 51, Support plate blind hole; 61, First screw; 61a, First fastening nut; 61b, Third fastening nut; 62, Second screw; 62a, Second fastening nut; 62b, Fourth fastening nut; 64, First through hole; 65, Second through hole; 66, Third through hole; 91, First space; 91a, First round hole; 92, Second space; 101, Charcoal canister; 101a, Non-woven fabric welding rib; 102, Non-woven fabric. Detailed Implementation

[0043] To further understand the invention's content, features, and effects, the following embodiments are provided, along with accompanying drawings. Figures 1-21 The details are as follows.

[0044] like Figures 1-5 As shown, this embodiment provides a universal nonwoven fabric welding base for charcoal canisters, including multiple arrayed ejector pins 1, a movable plate 2, a fixed plate 3, an elastic connector 4, and a support plate 5. The ejector pins 1 pass through the movable plate 2, the fixed plate 3, and the support plate 5 in sequence. A charcoal canister 101 is placed on the upper end of the ejector pin 1, and its lower end is movably inserted into the elastic connector 4. The movable plate 2 and the fixed plate 3 are both quadrilateral. The movable plate 2 is movably embedded on the upper surface of the fixed plate 3. The fixed plate 3 is fixedly connected to the support plate 5, and the multiple ejector pins 1 are arranged in an array.

[0045] like Figures 1-3 As shown, in this embodiment, non-woven fabric 102 is disposed at the bottom of carbon canister 101. The non-woven fabric welding ribs 101a are welded using an ultrasonic welding head, allowing the non-woven fabric 102 to be fixed to the carbon canister 101. Additionally, the ejector pins 1 located at the lower opening of the carbon canister 101 do not move downwards, while the ejector pins 1 in contact with the shell of the carbon canister 101 move downwards due to the compression of the elastic connector 4. Furthermore, the carbon canister 101 is laterally limited by the plurality of ejector pins 1 closest to it. This invention, by setting multiple arrayed ejector pins and their corresponding elastic connectors, can automatically adjust the required number of ejector pins according to different canister shapes, thereby reducing the manufacturing and management costs of carbon canisters, shortening the debugging time of welding fixtures, and improving product manufacturing efficiency.

[0046] like Figure 3 , 7 As shown in Figures 9, 15, and 18, in this embodiment, the movable plate 2 has multiple parallel through slots 23 along its length, and each through slot 23 has multiple second semicircular arc portions 23a spaced apart. The upper part of the fixed plate 3 has multiple parallel protrusions 33 along its length, and each protrusion 33 has multiple first semicircular arc portions 33a spaced apart. The protrusion 33 located in the middle of the fixed plate 3 extends beyond both ends of the fixed plate 3, i.e., the surface of the fixed plate 3 where the first screw 61 and the second screw 62 are located. This allows the second semicircular arc portions 23a of the through slots 23 to be positioned opposite to the first semicircular arc portions 33a of the protrusions 33, and the second semicircular arc portions 23a and the first semicircular arc portions 33a together form a first space portion 91 through which the ejector pin 1 passes. The bottom plate of the fixed plate 3 has a fixed plate through hole 36 corresponding to the first space portion 91. The first space portion 91 and the fixed plate through hole 36 together form a through hole through which the ejector pin 1 passes. The ejector pin 1 can pass through the first space portion 91 and the through hole 36 of the fixing plate in sequence, and can pass out from the bottom of the through hole 36 of the fixing plate, and can move freely up and down inside it.

[0047] like Figure 7 and 10 As shown, in this embodiment, the end of the fixed plate 3 is provided with a downwardly recessed fixed plate recess 31, and the movable plate 2 is provided with a movable plate protrusion 21 that mates with the fixed plate recess 31. The end of the fixed plate recess 31 is provided with a fixed plate inclined surface 32, and the end of the movable plate protrusion 21 is provided with a movable plate inclined surface 22. The fixed plate inclined surface 32 and the movable plate inclined surface 22 are arranged opposite to each other. In the initial state, as... Figure 4 As shown, the angles of the movable plate inclined surface 22 and the movable plate protrusion 21 abut against the fixed plate inclined surface 32. Simultaneously, a certain gap exists between the upper and lower surfaces of the movable plate 2 and the fixed plate 3, allowing the movable plate 2 to move relative to the fixed plate 3. Furthermore, during movement, the aforementioned angles remain abut against the fixed plate inclined surface 32. In this embodiment, the angle between the fixed plate inclined surface 32 and the horizontal plane is greater than the angle between the movable plate inclined surface 22 and the horizontal plane. This ensures smooth movement of the movable plate 2 along its length, guaranteeing the overall stability of the welding base. Of course, the angles can also be equal to achieve the objective of this invention.

[0048] In this embodiment, as Figure 3As shown, two first screws 61 and two second screws 62 are respectively provided at both ends of the through groove 23. The first screws 61 and the second screws 62 pass through the support plate 5, the fixed plate 3 and the movable plate 2 from bottom to top. The movable plate 2 has multiple first through holes 64 for the first screws 61 and the second screws 62 to pass through. The diameter of the first through holes 64 is larger than the outer diameter of the first screws 61 and the second screws 62. By tightening the first fastening nut 61a, the downward pressure of the movable plate 2 on the fixed plate 3 is converted into a thrust that moves along the length of the through groove 23, so that the second semicircular arc portion 23a and the first semicircular arc portion 33a are misaligned with each other, thereby fixing the ejector pin 1.

[0049] like Figures 3-4 As shown, the translational locking mechanism in this embodiment includes a fixed plate inclined surface 32 and a movable plate inclined surface 22 respectively disposed on the opposite surfaces of the fixed plate 3 and the movable plate 2, and a locking member for pressing the movable plate 2 and the fixed plate 3 together. The fixed plate inclined surface 32 and the movable plate inclined surface 22 correspond to each other and are inclined along the length direction of the protrusion 33. The locking member is a component that presses the fixed plate inclined surface 32 and the movable plate inclined surface 22 on the opposite surfaces of the fixed plate 3 and the movable plate 2 together. Specifically, the locking member includes a first fastening nut 61a and a first screw 61 and a second screw 62 located on both sides of the through groove 23, and a first fastening nut 61a and a second fastening nut 62a respectively sleeved on the upper ends of the first screw 61 and the second screw 62. The number of the first screw 61 and the second screw 62 are both two, and they are symmetrically arranged. This invention uses a translational locking structure to move the movable plate and fix the ejector pins. More specifically, it uses mutually cooperating inclined surfaces of the movable and fixed plates, along with locking components, to drive relative movement between them. The angle between the inclined surface of the fixed plate and the horizontal plane is not less than the angle between the inclined surface of the movable plate and the horizontal plane. This ensures that during the fastener tightening process, the movable plate can move smoothly relative to the fixed plate along the length of the carbon canister, guaranteeing the overall stability of the welding base. Furthermore, the engagement of ejector pins around the carbon canister further secures it.

[0050] In this embodiment, the direction of the line connecting the first screw 61 and the second screw 62 is taken as the length direction. For example... Figure 3 , 4As shown in Figure 14, both the first screw 61 and the second screw 62 are double-ended screws, but they can also be designed with only the upper end having a thread that mates with a nut, and a pad directly welded to the lower end. The pad is used to support the entire welding base. In this embodiment, the upper and lower ends of the first screw 61 are respectively provided with a first fastening nut 61a and a third fastening nut 61b, and the upper and lower ends of the second screw 62 are respectively provided with a second fastening nut 62a and a fourth fastening nut 62b. By tightening the first fastening nut 61a, the downward pressure of the movable plate 2 on the fixed plate 3 is converted into a thrust that moves along the length of the through groove 23, causing the second semicircular arc portion 23a and the first semicircular arc portion 33a to be misaligned, thereby fixing the ejector pin 1. The third fastening nut 61b and the fourth fastening nut 62b are used to fix the support plate 5 and the fixed plate 3, and to support the entire welding base.

[0051] In this embodiment, as Figure 17 As shown, the horizontal projection shape of the first spatial part 91 is a circular first hole 91a. The diameter of the first hole 91a is 0.2 to 0.3 mm larger than the outer diameter of the ejector pin 1. The diameters of the first screw 61 and the second screw 62 are the same, which facilitates manufacturing and assembly. Alternatively, different sizes can be used. The difference between the diameter of the first through hole 64 and the diameter of the first screw 61 is equal to the difference between the diameter of the first hole 91a and the diameter of the ejector pin 1. Alternatively, the former can be larger than the latter. This ensures that the movable plate 2 can move relative to the first screw 61 along its length. In this embodiment, the shape of the first through hole 64 is a circular hole, but other shapes such as a slotted hole can also be used. In addition, in this embodiment, the diameter of the through hole 36 of the fixing plate is the same as the diameter of the first hole 91a, which facilitates the manufacturing of the fixing plate 3. Of course, the through hole 36 of the fixing plate can also be smaller than the first hole 91a, as long as the diameter of the through hole 36 of the fixing plate is larger than the diameter of the ejector pin. In addition, through holes 65 and 66 are respectively provided at both ends of the fixing plate 5 and the support plate 5 for the first screw 61 and the second screw 62 to pass through. The diameter of the second through hole 65 and the third through hole 66 is the same as the diameter of the first through hole, which is convenient for processing and manufacturing. Different forms can also be used, as long as the space of the second through hole 65 and the third through hole 66 can accommodate the two types of screws.

[0052] like Figure 18 , 20As shown in Figure 21, in this embodiment, each ejector pin 1 passes through the first spatial portion 91 and the through hole 36 of the fixing plate in sequence, and the lower ends of the multiple elastic connectors 4 are fixedly installed on the blind holes 51 of the support plate 5. When the ejector pin 1 is in the initial state, the probe 1 rests against the inner wall of the first spatial portion 91, that is, point N on the circumference of the probe 1 rests against the inner wall of the first spatial portion 91. When the ejector pin 1 is in the locked state, the number of contact points between the probe 1 and the inner wall of the first spatial portion 91 projected on the horizontal plane is two. At this time, the line MN connecting the two contact points coincides with the diameter of the first circular hole 91a. At this time, the ejector pin 1 can no longer rotate with itself. To facilitate the placement of the movable plate 2 within the fixed plate 3, a chamfer 25 is provided at the end of the second semicircular arc portion 23a on the movable plate 2. Due to the presence of the chamfer 25, points M and N are not on the line connecting the center O1 of the first semicircular arc portion 23a and the center O2 of the second semicircular arc portion 23a. Furthermore, the line PQ connecting the contact points on adjacent first spatial portions 91 is symmetrically arranged with the aforementioned line MN. Additionally, initially, each ejector pin 1 is placed at the corresponding P or N position on the inner wall of the first spatial portion 91, thus ensuring that the ejector pin 1 remains stationary during the movement of the movable plate 2.

[0053] In this embodiment, as Figure 12 and 13 As shown, a single elastic connector 4 includes multiple springs 41 corresponding to each ejector pin 1. Each spring has a top spring 41a at the upper end and a bottom spring 41b at the lower end. During assembly, the top spring 41a is fitted to the outer diameter of the lower ejector pin 13, abutting against the stepped surface of the middle connecting part 12 of the ejector pin. This confines the lower ejector pin 13 within the spring, preventing it from moving left or right. The support plate 5 has blind holes 51 corresponding to each ejector pin 1. Each bottom spring 41b is fixedly positioned within a blind hole 51. Alternatively, the blind holes 51 can be omitted, and the bottom spring 41b can be directly welded to the upper surface of the support plate 5. The material of the elastic connector 4 can be 65Mn, stainless steel wire, or other carbon steel. The depth of the blind hole 51 is greater than twice the wire diameter of the elastic connector 4 to prevent the elastic connector 4 from slipping out of the blind hole 51 under stress.

[0054] In this embodiment, as Figure 15 As shown, the radii of curvature of a single first semicircular arc portion 33a and a second semicircular arc portion 23a are the same. The opening directions of two adjacent first semicircular arc portions 33a on the same protrusion 33 are opposite, and the opening directions of two adjacent second semicircular arc portions 23a on the same through groove 23 are opposite.

[0055] In this embodiment, the center distance d2 between two adjacent first semicircular arc portions 33a on a single protrusion 33 is the same as the center distance d1 between two adjacent second semicircular arc portions 23a on a single through groove 23. In this embodiment, both are 3mm. By setting such a distance, the ejector pin 1 has a sufficiently large arrangement density, thereby ensuring that it can better fix the charcoal canister laterally.

[0056] In this embodiment, the ejector pin 1 is made of a high-strength material, preferably mold steel or carbon steel. If carbon steel is chosen, quenching and plating processes are required. The movable plate 2 and the fixed plate 3 can be made of high-strength materials, with steel or aluminum alloy being preferred.

[0057] In this embodiment, as Figures 8-9 As shown, the fixed plate 3 has fixed plate side portions 34 on both sides to restrict the movement of the movable plate 2. The inner wall of the fixed plate side portion 34 has a third semicircular arc portion 34a corresponding to the first semicircular arc portion 33a. The movable plate 2 has fourth semicircular arc portions 24 on both sides corresponding to the second semicircular arc portion 23a. The space enclosed by the third semicircular arc portion 34a and the fourth semicircular arc portion 24 fixes the ejector pin 1. The radius of curvature of the third semicircular arc portion 34a, the fourth semicircular arc portion 24, and the first semicircular arc portion 33a are the same. By providing the third semicircular arc portion 34a, the entire welding base can accommodate more ejector pins 1.

[0058] In this embodiment, as Figure 4 As shown, the ejector pin 1 includes an upper ejector pin 11, a lower ejector pin 13, and a middle connecting part 12. The diameter of the upper ejector pin 11 is larger than the diameter of the lower ejector pin 13, and the diameter of the middle connecting part 12 is larger than the diameter of the upper ejector pin 11. The lower ejector pin 13 is fitted into multiple corresponding springs 41. By abutting the top 41a of the spring against the step at the bottom of the middle connecting part 12, the lower end of the middle connecting part 12 is prevented from wobbling left and right. This arrangement allows the ejector pin 1 to be better placed in the springs 41, preventing its lower end from moving left and right. By moving the movable plate 2, the upper part of the ejector pin 1 is locked by the misalignment of the second semicircular arc part 23a and the first semicircular arc part 33a. Thus, both the upper and lower ends of the ejector pin 1 are completely locked.

[0059] like Figures 1-21 As shown, this embodiment also provides a method for welding a base using a universal carbon canister nonwoven fabric, including the following steps:

[0060] S1. Place the charcoal canister 101 on the welding base: Place the movable plate 2 above the fixed plate 3. By moving the movable plate 2 back and forth, the through groove 23 and the protrusion 33 correspond to each other, so that the single second semicircular arc portion 23a and the single first semicircular arc portion 33a surround to form a first space portion 91 for the single ejector pin 1 to pass through. Pass the first screw 61 and the second screw 62 through the movable plate 2, the fixed plate 3 and the support plate 5 in sequence, respectively. Then, put the first fastening nut 61a and the second fastening nut 62a on the upper ends of the first screw 61 and the second screw 62, respectively. At this time, the movable plate is inclined. The end of the surface 22 abuts against the inclined surface 32 of the fixed plate, and then the ejector pin 1 passes through the first space 91 and the through hole 36 of the fixed plate in sequence, and the ejector pin 1 abuts against the inner wall of the first space 91 and the through hole 36 of the fixed plate in the direction of movement of the movable plate 2. The lower part of the ejector pin 1 abuts against the upper end of the spring 41, and the can body of the charcoal can 101 and the upper part 11 of the ejector pin 11 come into contact. The ejector pin 1 in contact with the can body of the charcoal can 101 moves downward under the action of the weight of the charcoal can 101, overcoming the elastic force of the spring 41, so that the multiple ejector pins 1 closest to the charcoal can 101 are laterally limited.

[0061] S2. Fixing the ejector pin on the welding base: By tightening the first fastening nut 61a, the tightening force of the first fastening nut 61a is converted into a thrust that pushes the movable plate 2 to move along the length direction until the end of the second semicircular arc portion 23a away from the ejector pin 1 contacts the ejector pin. At this time, the second semicircular arc portion 23a and the first semicircular arc portion 33a together form a second space portion 92 for fixing the ejector pin 1. At this time, the projection of the contact surface between the probe 1 and the inner wall of the first space portion 91 on the horizontal plane coincides with the diameter of the first circular hole 91a. At this time, the ejector pin 1 is locked, the tightening of the first fastening nut 61a is stopped, and the second fastening nut 62a is tightened to the same position as the first fastening nut 61a.

[0062] S3. Perform welding work on carbon canisters 101 and non-woven fabric 102 of the same size: Place non-woven fabric 102 at the bottom of carbon canister 101, and then place the ultrasonic welding head on top of non-woven fabric 102. Weld the non-woven fabric welding ribs 101a to fix non-woven fabric 102 to the bottom of carbon canister 101. After welding, remove the welded carbon canister 101, and then place carbon canisters 101 and non-woven fabric 102 of the same size in the same position and perform welding work again until all carbon canisters 101 of the same size are welded.

[0063] S4. Welding carbon canisters 101 and non-woven fabrics 102 of different sizes: Loosen the second fastening nut 62a and the first fastening nut 61a, move the position of the movable plate 2 again so that the ejector pin 1 is no longer fixed in the second space 92 and can move up and down with the spring 41. Then put in a new carbon canister 101 so that the probes 1 of different numbers can fix the carbon canister 101. Then repeat the above steps S2 to S3 until all carbon canisters 101 and non-woven fabrics 102 of different sizes are welded.

[0064] The welding base of this invention can adapt to carbon canisters of different sizes, ensuring the versatility of the welding base and saving production and manufacturing costs. Moreover, by setting mutually cooperating movable plate inclined surfaces and fixed plate inclined surfaces, the tightening force of the first fastening nut is converted into a thrust that pushes the movable plate to move along the length direction, so that the ejector pin can be fixed in the second space formed by the second semi-circular arc portion and the first semi-circular arc portion. At the same time, carbon canisters of the same size in the same batch only need to be placed in the same position as the first carbon canister, without the need to adjust the entire welding base, saving time and improving efficiency.

[0065] In step S2 of this embodiment, as follows Figure 4 and 5 As shown, the first screw 61 has a first fastening nut 61a and a third fastening nut 61b at its upper and lower ends, respectively. The second screw 62 has a second fastening nut 62a and a fourth fastening nut 62b at its upper and lower ends, respectively. First, the third and fourth fastening nuts 61b and 62b need to be tightened. Then, tighten the first fastening nut 61a located near the protrusion 21 of the movable plate. Only one of the first fastening nuts 61a on the left needs to be tightened. During the tightening process, the movable plate 2 moves to the right relative to the fixed plate 3. Once the moving pin is locked, stop tightening the first fastening nut 61a, and then tighten the second fastening nut 62a to the same position as the first fastening nut 61a. Alternatively, both first fastening nuts 61a can be tightened simultaneously, requiring two workers or a robotic arm to operate at the same time. However, the latter method results in a more stable movement of the movable plate 2 relative to the fixed plate 3.

[0066] In this embodiment, as Figures 15-21 As shown, in step S1, the center O1 of the first semicircular arc portion 33a and the center O2 of the second semicircular arc portion 23a coincide, and the center O3 of the first fastening nut 61a and the center O4 of the first through hole 64 coincide; in step S3, the center O1 of the first semicircular arc portion 33a and the center O2 of the second semicircular arc portion 23a do not coincide, and the center O4 of the first fastening nut 61a and the center O3 of the first through hole 64 do not coincide.

[0067] In this embodiment, as Figures 9-10As shown, a fixed plate limiting part 35 with an upward protrusion is provided on one end of the fixed plate 3 near the second through hole 65, which is used to prevent one end of the movable plate 2 from moving down too much during the tightening process, causing the other end to lift up.

[0068] The above description merely illustrates implementation methods of the present invention and should not be construed as limiting the scope of the invention patent, nor as imposing any form of limitation on the structure of the embodiments of the present invention. It should be noted that those skilled in the art can make various changes and improvements without departing from the concept of the embodiments of the present invention, and these all fall within the protection scope of the embodiments of the present invention.

Claims

1. A universal nonwoven fabric welding base for charcoal canisters, characterized in that: Includes a push pin (1), a movable plate (2), a fixed plate (3), an elastic connector (4), a support plate (5), and a translational locking structure; The movable plate (2) has multiple parallel through slots (23), and each through slot (23) has multiple second semicircular arc portions (23a) spaced apart along the length direction on its side wall. The upper surface of the fixing plate (3) is provided with a plurality of parallel protrusions (33), and a plurality of first semi-circular arc portions (33a) are provided at intervals along the length direction on the side wall of each protrusion (33). A fixing plate through hole (36) corresponding to the first semi-circular arc portion (33a) is opened below the protrusion (33) along the length direction. The sidewall of a single through groove (23) is embedded in the sidewall of a single protrusion (33), such that the openings of the second semicircular arc portion (23a) and the first semicircular arc portion (33a) are arranged opposite to each other; The second semicircular arc portion (23a) and the first semicircular arc portion (33a) together form a first space portion (91) through which the ejector pin (1) passes. The first space portion (91) corresponds to the through hole (36) of the fixing plate. Each ejector pin (1) passes through the first space portion (91) and the through hole (36) of the fixing plate in sequence, and is fixedly mounted on the support plate (5) by an elastic connector (4). The support plate (5) is fixedly connected to the fixing plate (3). The translation locking structure is used to move the movable plate (2) relative to the fixed plate (3) along the length direction of the protrusion (33), so that the second semicircular arc portion (23a) and the first semicircular arc portion (33a) are misaligned to lock the ejector pin (1); The translational locking structure includes a fixed plate inclined surface (32) and a movable plate inclined surface (22) respectively disposed on the opposite surfaces of the fixed plate (3) and the movable plate (2), and a locking member for pressing the movable plate (2) and the fixed plate (3); the fixed plate inclined surface (32) and the movable plate inclined surface (22) correspond to each other and are inclined along the length direction of the protrusion (33); the locking member is a component for pressing the fixed plate inclined surface (32) and the movable plate inclined surface (22) on the opposite surfaces of the fixed plate (3) and the movable plate (2); The locking component includes multiple first screws (61) and second screws (62) located at both ends of the through groove (23), and a first fastening nut (61a) and a second fastening nut (62a) respectively sleeved on the upper ends of the first screws (61) and the second screws (62). The first screws (61) and the second screws (62) pass through the support plate (5), the fixed plate (3) and the movable plate (2) from bottom to top. The movable plate (2) has multiple first through holes (64). The diameter of the first through holes (64) is larger than the outer diameter of the first screws (61) and the second screws (62). By tightening the first fastening nut (61a), the downward pressure of the movable plate (2) on the fixed plate (3) is converted into a thrust that moves along the length of the through groove (23), so that the second semicircular part (23a) and the first semicircular part (33a) are misaligned to fix the ejector pin (1).

2. The universal nonwoven fabric welding base for carbon canisters according to claim 1, characterized in that: The lower ends of the first screw (61) and the second screw (62) are respectively provided with a detachable third fastening nut (61b) and a fourth fastening nut (62b). The third fastening nut (61b) and the fourth fastening nut (62b) are used to fix the support plate (5) and the fixing plate (3) and to support the entire welding base.

3. The universal carbon canister nonwoven fabric welding base according to any one of claims 1 to 2, characterized in that: The first semicircular arc portion (33a) and the second semicircular arc portion (23a) have the same radius of curvature. The opening directions of two adjacent first semicircular arc portions (33a) on the same convex strip (33) are opposite, and the opening directions of two adjacent second semicircular arc portions (23a) on the same through groove (23) are opposite.

4. The universal nonwoven fabric welding base for carbon canisters according to any one of claims 1 to 2, characterized in that: The elastic connector (4) includes a plurality of springs (41) corresponding one-to-one with the ejector pin (1). The support plate (5) is provided with support plate blind holes (51) for fixing the lower end of the springs (41). The number of support plate blind holes (51) corresponds one-to-one with the number of springs (41). The upper end of the springs (41) abuts against the ejector pin (1).

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