Welding gas supply device

Abstract

The utility model relates to a welding air supply device which comprises a machine frame, a driving piece and an air supply assembly, and the machine frame is used for containing an inner container to be welded. The air supply assembly comprises a first base plate, a second base plate and a flexible air pipe. The driving piece is arranged on the rack and used for driving the first base plate and the second base plate to move in the vertical direction. A fixing rod extending in the vertical direction is fixed to the first base plate, and a rotating rod is hinged to the fixing rod. One end of the flexible air pipe is fixed on the rotating rod; a driving rod which also extends in the vertical direction is fixed to the second base plate, and the driving rod is in transmission connection with the rotating rod, so that when the second base plate moves in the vertical direction relative to the first base plate, the driving rod drives the rotating rod to be switched between the folded state and the unfolded state; in the storage state, the rotating rod and the flexible air pipe can penetrate through a bottle opening of the inner container to be welded. In the unfolded state, the end of the flexible air pipe faces the edge of the inner bottom wall of the inner container to be welded.

Description

Technical Field

[0001] The utility model relates to the technical field related to the welding of metal cup and pot inner liner, in particular to a welding gas supply device. Background Art

[0002] Now the market has higher and higher requirements for the inner surface of stainless steel cups and pots, requiring that there should be no blackening and weld nodules at the welding points, thus developing the technology of inner liner argon gas protected laser welding.

[0003] Conventional argon shielded welding is to fill argon into the inner liner at the mouth of the cup, but it is difficult to provide protection for a large-capacity inner liner with a small mouth and a large cup body. The reason is that the cup body has a large capacity and it is difficult for argon to reach the welding position. In addition, the time for filling argon is also long, which affects production efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a welding gas supply device with a short inflation time and shielding gas that can directly reach the welding position to address the problem that the shielding gas has difficulty reaching the welding position during the current metal cup and pot welding process, resulting in low production efficiency.

[0005] The present application provides a welding gas supply device, comprising a frame, a driving member and a gas supply assembly, wherein the frame is used to accommodate an inner liner to be welded;

[0006] The air supply assembly includes a first substrate, a second substrate and a flexible air pipe, and the driving member is disposed on the frame and is used to drive the first substrate and the second substrate to move in a vertical direction;

[0007] A fixed rod extending in the vertical direction is fixed on the first substrate, and a rotating rod is hinged on the fixed rod; one end of the flexible air tube is fixed to the rotating rod; an active rod also extending in the vertical direction is fixed on the second substrate, and the active rod is transmission-connected with the rotating rod, so that when the second substrate moves in the vertical direction relative to the first substrate, the rotating rod is driven by the active rod to switch between the storage state and the deployment state;

[0008] In the stowed state, the rotating rod and the flexible air tube can pass through the bottle mouth of the inner liner to be welded; in the unfolded state, the end of the flexible air tube faces the inner bottom wall edge of the inner liner to be welded.

[0009] In one embodiment, the active rod is connected to the rotating rod via a connecting rod.

[0010] In one embodiment, the air supply assembly further includes a transmission rod, and two ends of the transmission rod are respectively hinged to the transmission rod and the active rod.

[0011] In one of the embodiments, in the retracted state, there is an angle between the transmission rod and the active rod.

[0012] In one of the embodiments, a hinged portion is protruding from the rotating rod, and the transmission rod is hinged to the hinged portion; in the unfolded state, the hinged portion is located on the rotating rod near the bottle mouth of the inner liner to be welded.

[0013] In one embodiment, the flexible air tube is fixed to the other side of the rotating rod relative to the hinged portion.

[0014] In one embodiment, a gear is fixedly provided on the rotating rod, and a rack capable of meshing with the gear is fixedly provided on the active rod.

[0015] In one embodiment, the hinge point between the rotating rod and the fixed rod is located at the end of the fixed rod along its length direction.

[0016] In one embodiment, the first substrate and the second substrate are fixedly connected via an elastic member, the driving member is connected to the second substrate, and the first substrate can abut against the bottle mouth of the inner liner to be welded.

[0017] In one embodiment, the driving member includes a first driving member and a second driving member, the first driving member is connected to the first substrate, and the second driving member is connected to the second substrate.

[0018] The above-mentioned welding gas supply device, through the structural design of the gas supply component, the flexible gas pipe can not only be folded to pass through the narrow bottle mouth, but also can be unfolded after reaching the welding position, so that the opening of the flexible gas pipe is directly facing the welding position, and the shielding gas can directly reach the welding position through the opening of the flexible gas pipe. There is no need to fill the entire inner tank to be welded with shielding gas, which effectively reduces the time required for filling shielding gas during welding and improves production efficiency. In addition, it also reduces the consumption of shielding gas and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the gas supply assembly of the welding gas supply device of the present application when it is not lowered;

[0020] Figure 2 for Figure 1 A cross-sectional view of the middle gas supply assembly partially extending into the inner tank to be welded;

[0021] Figure 3 for Figure 2 A cross-sectional view of the middle air supply assembly continuing to descend until the rotating rod is in an extended state;

[0022] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0024] Figure numerals: 1, frame; 2, driving member; 3, air supply assembly; 10, first base plate; 11, fixed rod; 12, rotating rod; 12a, hinged portion; 20, second base plate; 21, active rod; 30, flexible air tube; 40, transmission rod; 50, elastic member. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0031] Please combine Figures 1 to 5 As shown, the present application provides a welding gas supply device, including a frame 1, a driving member 2 and a gas supply assembly 3, the frame 1 is used to accommodate an inner liner to be welded; the gas supply assembly 3 includes a first base plate 10, a second base plate 20 and a flexible air pipe 30, the driving member 2 is arranged on the frame 1 and is used to drive the first base plate 10 and the second base plate 20 to move in the vertical direction; a fixed rod 11 extending in the vertical direction is fixed on the first base plate 10, and a rotating rod 12 is hinged on the fixed rod 11; one end of the flexible air pipe 30 is fixed to the rotating rod 12; an active rod 21 also extending in the vertical direction is fixed on the second base plate 20, and the active rod 21 is transmission-connected with the rotating rod 12, so that when the second base plate 20 moves in the vertical direction relative to the first base plate 10, the rotating rod 12 is driven by the active rod 21 to switch between a storage state and an unfolded state; in the storage state, the rotating rod 12 and the flexible air pipe 30 can pass through the bottle mouth of the inner liner to be welded; in the unfolded state, the end of the flexible air pipe 30 faces the inner bottom wall edge of the inner liner to be welded.

[0032] Specifically, refer to Figure 1 As shown, before the gas supply starts, the rotating rod 12 is in a retracted state, so that the rotating rod 12 and the flexible air pipe 30 can be extended into the bottle mouth of the inner liner to be welded; Figure 2 As shown, as the driving member 2 drives the first substrate 10 and the second substrate 20 to move in the vertical direction, the fixed rod 11, the active rod 21, the rotating rod 12 and the flexible air tube 30 extend through the bottle mouth to a position close to the bottom of the inner liner to be welded; Figure 3 As shown, the driving member 2 drives the second substrate 20 to continue to move downward relative to the first substrate 10, thereby driving the rotating rod 12 to switch to the unfolded state through the active stem 21, and the rotating rod 12 drives the flexible air tube 30 to rotate until the end of the flexible air tube 30 is toward the edge of the inner bottom wall of the inner liner to be welded, so that the protective gas can directly reach the welding position.

[0033] In the present application, through the structural design of the gas supply component 3, the flexible air pipe 30 can not only be folded to pass through the narrow bottle mouth, but also can be unfolded after reaching the welding position, so that the opening of the flexible air pipe 30 is facing the welding position, and the shielding gas can directly reach the welding position through the opening of the flexible air pipe 30. There is no need to fill the entire inner tank to be welded with shielding gas, which effectively reduces the time required to fill the shielding gas during the welding process and improves production efficiency. In addition, it also reduces the consumption of shielding gas and reduces production costs.

[0034] In some embodiments, the frame 1 includes two guide pillars, which penetrate the first substrate 10 and the second substrate 20, so as to guide and limit the movement of the first substrate 10 and the second substrate 20 in the vertical direction.

[0035] In some embodiments, a pull rod bolt is fixed on one of the first substrate 10 or the second substrate 20 and passes through the other substrate to play a guiding and limiting role when the second substrate 20 moves relative to the first substrate 10 in the vertical direction.

[0036] In some embodiments, one end of the flexible air tube 30 is connected to the protective gas supply bottle, and the other end is tied and fixed to the rotating rod 12 by a cable tie, and the middle part of the flexible air tube 30 is tied and fixed to the fixed rod 11 by a cable tie.

[0037] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, the active rod 21 is connected to the rotating rod 12 via a connecting rod; specifically, the air supply assembly 3 further includes a transmission rod 40, and both ends of the transmission rod 40 are hinged to the transmission rod 40 and the active rod 21 respectively.

[0038] Of course, in some other embodiments, the active rod 21 and the rotating rod 12 may also be connected via a plurality of connecting rods to increase transmission stability, which will not be further elaborated in this application.

[0039] Please combine Figure 3 As shown, in some embodiments, in the stored state, there is an angle between the transmission rod 40 and the active rod 21; since the active rod 21 extends in the vertical direction, by setting the transmission rod 40 to have a certain angle with the active rod 21, when the second substrate 20 moves in the vertical direction relative to the first substrate 10, the driving force transmitted from the active rod 21 to the rotating rod 12 through the transmission rod 40 has a horizontal component, thereby avoiding the occurrence of self-locking.

[0040] It should be noted that if the angle is too large, the rotating rod 12 may be too extended outward in the stored state and cannot be inserted into the narrow mouth of the inner bottle to be measured. Conversely, if the angle is too small, the horizontal component of force may be too small and the rotating rod 12 cannot be driven to rotate. Preferably, in the stored state, the angle between the transmission rod 40 and the active rod 21 is 3°.

[0041] Please combine Figure 4 as well as Figure 5 As shown, in some embodiments, a hinge portion 12a is protruding from the rotating rod 12, and the transmission rod 40 is hinged to the hinge portion 12a; in the unfolded state, the hinge portion 12a is located on the side of the rotating rod 12 close to the mouth of the inner liner bottle to be welded; specifically, the flexible air tube 30 is fixed to the other side of the rotating rod 12 relative to the hinge portion 12a.

[0042] In some other embodiments, a gear is fixedly provided on the rotating rod 12 , and a rack capable of meshing with the gear is fixedly provided on the active rod 21 .

[0043] Of course, the rotating rod 12 and the active rod 21 can also be connected by other commonly used transmission methods. As long as the active rod 21 can move in the vertical direction to drive the rotating rod 12 to rotate, the present application does not make any further limitations here.

[0044] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, the hinge point between the rotating rod 12 and the fixed rod 11 is located at the end of the fixed rod 11 along its own length direction.

[0045] Such an arrangement can ensure that when the rotating rod 12 is rotated to the unfolded state, the lower end surface of the rotating rod 12 is as close as possible to the bottom wall of the inner liner to be measured, so that the opening of the flexible air tube 30 is just facing the welding position at the edge of the bottom wall of the inner liner, ensuring that the protective gas can accurately fill the welding position.

[0046] Please combine Figure 2 as well as Figure 3As shown, in some embodiments, the first substrate 10 and the second substrate 20 are fixedly connected via an elastic member 50, the driving member 2 is connected to the second substrate 20, and the first substrate 10 can abut against the bottle mouth of the inner liner to be welded.

[0047] It is not difficult to understand that when the driving member 2 drives the first substrate 10 and the second substrate 20 to Figure 2 position, the first substrate 10 abuts against the bottle mouth of the inner liner to be welded, and the first substrate 10 cannot move further downward; the driving member 2 overcomes the elastic force of the elastic member 50 to drive the second substrate 20 to move further downward relative to the first substrate 10 to complete the expansion of the rotating rod 12.

[0048] In some other embodiments, the driving member 2 includes a first driving member and a second driving member, the first driving member is connected to the first substrate 10, and the second driving member is connected to the second substrate 20; that is, the two driving members 2 respectively drive the first substrate 10 and the second substrate 20 to move, and it is also possible to achieve the action of the first substrate 10 and the second substrate 20 moving downward together in the first stage, and the second substrate 20 moving further downward relative to the first substrate 10 in the second stage.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A welding gas supply device, characterized in that: It comprises a frame (1), a driving member (2) and an air supply assembly (3), wherein the frame (1) is used to accommodate an inner liner to be welded; The air supply assembly (3) comprises a first substrate (10), a second substrate (20) and a flexible air pipe (30); the driving member (2) is arranged on the frame (1) and is used to drive the first substrate (10) and the second substrate (20) to move in a vertical direction; A fixed rod (11) extending in a vertical direction is fixed on the first substrate (10), and a rotating rod (12) is hinged on the fixed rod (11); one end of the flexible air tube (30) is fixed to the rotating rod (12); an active rod (21) also extending in a vertical direction is fixed on the second substrate (20), and the active rod (21) is transmission-connected with the rotating rod (12), so that when the second substrate (20) moves in a vertical direction relative to the first substrate (10), the rotating rod (12) is driven by the active rod (21) to switch between a stored state and an unfolded state; In the stored state, the rotating rod (12) and the flexible air tube (30) can pass through the bottle mouth of the inner liner to be welded; In the unfolded state, the end of the flexible air tube (30) faces the edge of the inner bottom wall of the liner to be welded.

2. The welding gas supply device according to claim 1, characterized in that: The active rod (21) and the rotating rod (12) are connected via a connecting rod.

3. The welding gas supply device according to claim 2, characterized in that: The air supply assembly (3) further comprises a transmission rod (40), and two ends of the transmission rod (40) are respectively hinged to the transmission rod (40) and the active rod (21).

4. The welding gas supply device according to claim 3, characterized in that: In the stored state, an angle exists between the transmission rod (40) and the active rod (21).

5. The welding gas supply device according to claim 3, characterized in that: A hinged portion (12a) is protruding from the rotating rod (12), and the transmission rod (40) is hinged to the hinged portion (12a); in the unfolded state, the hinged portion (12a) is located on the rotating rod (12) near the mouth of the inner liner to be welded.

6. The welding gas supply device according to claim 5, characterized in that: The flexible air tube (30) is fixed to the other side of the rotating rod (12) relative to the hinged portion (12a).

7. The welding gas supply device according to claim 1, characterized in that: A gear is fixedly provided on the rotating rod (12), and a rack capable of meshing with the gear is fixedly provided on the active rod (21).

8. The welding gas supply device according to any one of claims 1 to 7, characterized in that: The hinge point between the rotating rod (12) and the fixed rod (11) is located at the end of the fixed rod (11) along its own length direction.

9. The welding gas supply device according to claim 1, characterized in that: The first substrate (10) and the second substrate (20) are fixedly connected via an elastic member (50), the driving member (2) is connected to the second substrate (20), and the first substrate (10) can abut against the bottle mouth of the inner liner to be welded.

10. The welding gas supply device according to claim 1, characterized in that: The driving member (2) comprises a first driving member and a second driving member, the first driving member is connected to the first substrate (10), and the second driving member is connected to the second substrate (20).

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