Inner top mold and welding lug mechanism

Abstract

The utility model relates to an inner top mold and a welding lug mechanism, the inner top mold is used for supporting a barrel body of a barrel-shaped object to be welded during welding, the inner top mold comprises a blocking cover, the size of the blocking cover is larger than that of a barrel opening of the barrel body, and the blocking cover operably shields the barrel opening. The blocking cover is used for blocking the barrel opening, sputtering objects generated in the spot welding process are prevented from being sputtered into the barrel body, and the interior of the barrel is kept clean. The size of the blocking cover is larger than that of the barrel opening, the barrel opening can be completely blocked, electric sparks and electroslag generated by welding are prevented from entering the barrel, the cleanliness of the inner wall of the barrel tank is effectively improved, and normal use of a finished product is not affected.

Description

Technical Field

[0001] The present application relates to the technical field of welding, and in particular to an inner top mold and a welding ear mechanism. Background Art

[0002] In recent years, with the increasing demand for environmental protection and product quality, higher requirements have been placed on the production process of barrels and cans. Traditional canning processes often generate a large amount of electric sparks and slag during the welding process. These substances not only contaminate the inner wall of the barrel and can, but also pollute the surrounding environment, affecting product quality and production efficiency.

[0003] Current drum and tank welding processes primarily rely on resistance welding. During resistance welding, the high temperatures generated by the current flowing through the weld point inevitably produce sparks. These sparks fly everywhere, some of which can enter the drum and tank interior, causing contamination. After the spark extinguishes, it forms slag, which can contaminate the drum and tank interior, affecting product quality and the proper use of the paint.

[0004] In order to solve the problem of electric spark and electric slag pollution, the existing technology generally adopts manual inspection and cleaning after production is completed, and manually cleans the electric spark and electric slag inside the barrels and cans. However, this method is inefficient and costly, and cannot completely eliminate the pollution. The barrels and cans that cannot be completely cleaned are discarded, which further wastes resources on the basis of labor.

[0005] Therefore, the canning industry urgently needs an efficient, reliable, and low-cost solution to improve the cleanliness inside barrels and cans to meet increasingly stringent market demands. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this application is to provide an inner top mold and a welding ear mechanism, which can maintain the cleanliness inside the barrel during welding production.

[0007] The above-mentioned purpose of this application is achieved through the following technical solutions:

[0008] An inner top mold is used to support the barrel body of a barrel-shaped object to be welded during welding, wherein the inner top mold includes a blocking cover, the size of the blocking cover is larger than the size of the barrel mouth of the barrel body, and the blocking cover can be operated to cover the barrel mouth.

[0009] By adopting the above technical solution, the blocking cover can effectively prevent electric sparks from splashing into the barrel, thereby ensuring the cleanliness of the barrel body.

[0010] The present application is further configured such that the inner top mold further includes an inner top head for extending into the barrel body and supporting the barrel body during welding, and the blocking cover is provided above the inner top head.

[0011] By adopting the above technical solution, the inner head extends into the barrel body to provide internal support for the barrel body, thereby enhancing the stability of the barrel body, reducing deformation during welding, and improving product quality. The combination of the inner head and the baffle cover forms a complete support system, which can more effectively stabilize the barrel body and prevent the barrel body from being deformed due to heat changes during welding.

[0012] The present application is further configured such that the inner top mold further includes a lifting device, the blocking cover and the inner top head are both mounted on the lifting device, and the blocking cover and the inner top head move synchronously in the axial direction of the barrel body.

[0013] The present application is further configured such that a flange is provided on the lifting device, the blocking cover is annular, and the inner ring of the blocking cover is fixedly connected to the outer edge of the flange.

[0014] The present application is further configured such that the blocking cover covers a portion of the inner head in the axial direction of the barrel body.

[0015] The present application is further configured such that the side wall of the inner head is in contact with the inner wall of the barrel body, and the inner head and the blocking cover are coaxially arranged.

[0016] A lug welding mechanism is used to weld barrel lugs on the barrel body of the barrel-shaped object to be welded, comprising the above-mentioned inner top mold, wherein the lug welding mechanism also includes a welding head, which is arranged on the outside of the barrel body and facing the barrel lug.

[0017] The present application is further configured such that a shielding plate is also provided on the welding head, and the shielding plate is provided on the outside of the welding head.

[0018] By adopting the above technical solution, the shielding plate can effectively block the spatters during the welding process, prevent the spatters from splashing onto the barrel body, and avoid affecting the product quality of the barrel-shaped object to be welded.

[0019] The present application is further configured such that the shielding plates are arranged in pairs on the outside of the welding head, one end of the shielding plate is connected to the welding head, the middle part of the shielding plate is bent, the two shielding plates arranged in pairs are symmetrically arranged with the welding head as the center, and the two shielding plates arranged in pairs are in a cover shape and arranged on the outside of the welding head.

[0020] In summary, the beneficial technical effects of this application are:

[0021] 1. This application uses a cover to cover the barrel mouth to prevent the spatter generated during spot welding from splashing into the barrel body and keep the barrel clean.

[0022] 2. The size of the cover of this application is larger than the barrel mouth, which can completely cover the barrel mouth, preventing the electric sparks and slag generated by welding from entering the barrel, effectively improving the cleanliness of the inner wall of the barrel, and not affecting the normal use of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a barrel-shaped object to be welded.

[0024] Figure 2 It is a schematic diagram of the inner top mold.

[0025] Figure 3 It is a schematic diagram of the welding head.

[0026] Figure 4 It is a schematic diagram of the ear welding mechanism in the pre-welded state.

[0027] Figure 5 It is a schematic diagram of the welding ear mechanism in the weldment state.

[0028] Explanation of the accompanying figures: A, barrel-shaped object to be welded; A1, barrel body; A2, barrel mouth; A3, barrel ears; 1, inner top mold; 11, blocking cover; 12, inner top head; 13, lifting device; 14, flange; 2, welding ear mechanism; 21, welding head; 22, shielding plate. DETAILED DESCRIPTION

[0029] The present application is further described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, a barrel-shaped object A to be welded is shown. The barrel-shaped object A to be welded has a barrel body A1 and a barrel ear A3. The barrel ear A3 needs to be welded to the barrel body A1. One side of the barrel body A1 is opened to form a barrel mouth A2.

[0031] like Figure 2 As shown, an inner top mold 1 is shown, which includes an inner top head 12 for supporting the barrel body A1 during welding and a baffle 11 for covering the barrel mouth A2. The size of the baffle 11 is larger than the barrel mouth A2 of the barrel body A1, and can completely cover the barrel mouth A2 to prevent electric sparks and electric slag generated by welding from entering the barrel, effectively improving the cleanliness of the inner wall of the barrel, ensuring that the inner wall of the barrel is clean and does not affect the normal use of the paint.

[0032] The baffle 11 can be operated to block the barrel opening A2, that is, the baffle 11 can choose to block the barrel opening A2 or stay away from the barrel opening A2. During welding, blocking the barrel opening A2 eliminates the need for manual cleaning of electric sparks and slag in the barrel, thereby simplifying the production process and improving production efficiency.

[0033] Furthermore, the inner head 12 extends into the barrel body A1 to form a support for the barrel body A1. Preferably, the side wall of the inner head 12 is in contact with the inner wall of the barrel body A1, and the inner head 12 and the blocking cover 11 are coaxially arranged. During welding, only the side wall of the inner head 12 needs to be in contact with the inner wall of the barrel body A1 to form an effective support, such as the head disclosed in the Chinese utility model patent, authorization announcement number: CN220161486U.

[0034] It should be noted that the inner head 12 extends into the barrel body A1 to provide internal support for the barrel body A1, thereby enhancing the stability of the barrel body A1, reducing deformation during welding, and improving product quality. The combination of the inner head 12 and the baffle 11 forms a complete support system, which can more effectively stabilize the barrel body A1 and prevent the barrel body A1 from being deformed due to heat changes during welding.

[0035] In addition, the inner head 12 supports the barrel body A1, making the barrel body A1 more stable, facilitating welding operations, and improving welding efficiency. The inner head 12 support can reduce welding defects caused by the shaking of the barrel body A1 during welding and improve welding quality.

[0036] Furthermore, the inner top mold 1 also includes a lifting device 13, and the baffle 11 and the inner head 12 are both installed on the lifting device 13. The baffle 11 and the inner head 12 move synchronously in the axial direction of the barrel body A1. Preferably, the lifting device 13 is driven by a hydraulic cylinder; more preferably, the lifting device 13 is driven by a pneumatic cylinder, such as the lifting cylinder disclosed in the Chinese utility model patent, authorization announcement number: CN220161486U.

[0037] Furthermore, a flange 14 is provided on the lifting device 13 , and the blocking cover 11 is annular, with the inner ring of the blocking cover 11 being fixedly connected to the outer edge of the flange 14 .

[0038] Furthermore, the stopper 11 covers a portion of the inner head 12 in the axial direction of the barrel body A1, specifically in the direction along the inner head 12. Figure 2 Projected in the up and down directions, the projections of the block cover 11 and the inner head 12 overlap, that is, the inner circle size of the block cover 11 is smaller than the outer edge of the inner head 12. In this way, the flange 14, the block cover 11 and the inner head 12 are combined. Even if a gap appears in the connection between the flange 14 and the block cover 11, the electric spark sputters into the barrel from the gap. The above-mentioned covering relationship exists between the block cover 11 and the inner head 12, and the electric spark can also be sputtered onto the inner head 12 first, thereby keeping the inner wall of the barrel body A1 clean.

[0039] like Figure 3 As shown, a welding head 21 is shown, and a shielding plate 22 is also provided on the welding head 21. The shielding plate 22 is arranged on the outside of the welding head 21. The shielding plate 22 is arranged on the path of diffraction of electric sparks generated by welding to block the electric sparks, thereby protecting the product and the production equipment.

[0040] It is worth noting that the shielding plate 22 can also effectively prevent the welding head 21 from being affected by the external environment during use, such as dust, water droplets, etc., and prevent its surface from oxidation and corrosion, thereby extending the service life of the welding head 21 and reducing production costs.

[0041] The shielding plate 22 can also effectively block the spatter during the welding process, preventing the spatter from adhering to the surface of the barrel body A1 and affecting the quality of the barrel and can products.

[0042] Furthermore, the shielding plates 22 are arranged in pairs on the outside of the welding head 21, one end of the shielding plate 22 is connected to the welding head 21, the middle part of the shielding plate 22 is bent, and the two shielding plates 22 arranged in pairs are symmetrically arranged with the welding head 21 as the center, and the two shielding plates 22 arranged in pairs are in a cover shape and arranged on the outside of the welding head 21.

[0043] The two shielding plates 22 are arranged in a lid-like configuration, providing more comprehensive protection. The lid-shaped shielding plates 22 can more fully cover the welding area, effectively blocking spark diffraction and preventing sparks from splashing onto products and equipment, effectively protecting products and production equipment. This has significant advantages over traditional flat shielding plates 22. Flat shielding plates 22 have limited coverage and cannot completely block spark diffraction, while the lid-shaped shielding plates 22 can more effectively block sparks and provide more comprehensive protection.

[0044] In addition, the shielding plate 22 is detachable and fixed with buckles or screws, which is convenient for installation and removal, and easy for maintenance and replacement.

[0045] like Figures 4-5 As shown, a lug welding mechanism 2 is shown, which is used to weld a barrel lug A3 on a barrel body A1 of a barrel-shaped object A to be welded. It includes the above-mentioned inner top mold 1 and a welding head 21. During welding, under the drive of the lifting device 13, the inner top head 12 is first extended into the barrel. At this time, the baffle 11 blocks the barrel mouth A2, and then the welding head 21 approaches the barrel lug A3 for welding; after welding is completed, the welding head 21 first moves away from the barrel lug A3, and the inner top head 12 is retracted to complete the welding.

[0046] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. An inner top mold for supporting the barrel body (A1) of a barrel-shaped object to be welded (A) during welding, characterized in that: The barrel body (A1) comprises a blocking cover (11), the size of the blocking cover (11) is larger than the size of the barrel opening (A2) of the barrel body (A1), and the blocking cover (11) is operable to cover the barrel opening (A2); It also includes an inner top head (12) for extending into the barrel body (A1) and supporting the barrel body (A1) during welding, and the blocking cover (11) is arranged above the inner top head (12).

2. The inner top mold according to claim 1, characterized in that: It also includes a lifting device (13), on which the blocking cover (11) and the inner head (12) are both mounted, and the blocking cover (11) and the inner head (12) move synchronously in the axial direction of the barrel body (A1).

3. The inner top mold according to claim 2, characterized in that: The lifting device (13) is provided with a flange (14), the blocking cover (11) is annular, and the inner ring of the blocking cover (11) is fixedly connected to the outer edge of the flange (14).

4. The inner top mold according to claim 1, characterized in that: The blocking cover (11) covers a portion of the inner head (12) in the axial direction of the barrel body (A1).

5. The inner top mold according to claim 1, characterized in that: The side wall of the inner head (12) is in contact with the inner wall of the barrel body (A1), and the inner head (12) and the blocking cover (11) are coaxially arranged.

6. A lug welding mechanism for welding lugs (A3) on the barrel body (A1) of the barrel-shaped object to be welded (A), comprising the inner top mold (1) according to any one of claims 1 to 5, characterized in that: It also includes a welding head (21), which is arranged on the outside of the barrel body (A1) and is directly opposite to the barrel ear (A3).

7. The ear welding mechanism according to claim 6, characterized in that: The welding head (21) is also provided with a shielding plate (22), and the shielding plate (22) is arranged outside the welding head (21).

8. The lug welding mechanism according to claim 7, characterized in that: The shielding plates (22) are arranged in pairs on the outside of the welding head (21), one end of the shielding plate (22) is connected to the welding head (21), the middle part of the shielding plate (22) is bent, and the two shielding plates (22) arranged in pairs are symmetrically arranged with the welding head (21) as the center, and the two shielding plates (22) arranged in pairs are arranged in a cover shape on the outside of the welding head (21).

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