Edge sealing welding structure and edge sealing welding equipment comprising same

Abstract

The utility model discloses an edge sealing welding structure and edge sealing welding equipment comprising the same, the edge sealing welding structure comprises a base, the upper end face of the base is embedded with a closed loop induction coil; the bottom plate is arranged above the base, an electric heating wire assembly is embedded in the upper end face of the bottom plate, and the electric heating wire assembly and the closed-loop induction coil are correspondingly arranged up and down; and the two tensioning assemblies are arranged on the two sides of the electric heating wire assembly correspondingly, and the two tensioning assemblies are elastically connected with the two ends of the electric heating wire assembly correspondingly. According to the electric heating wire welding structure, when the electric heating wire is subjected to thermal expansion deformation, the electric heating wire can be stretched and tensioned towards the two ends through the tensioning assembly, and it is guaranteed that edge sealing welding of a product is neat; when the two ends of the heating wire shrink and deform, the two ends of the heating wire can still be tensioned through the tensioning assemblies, the heating wire can be tensioned no matter thermal expansion or thermal contraction, the heating wire is prevented from deforming, and the welding quality of products is guaranteed. The electric heating wire is formed by welding different heating materials, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an edge sealing welding structure and edge sealing welding equipment comprising the same. Background Art

[0002] At present, electric heating wire welding is usually used for edge sealing welding of products. Due to the heating problem, the traditional electric heating wire welding structure causes serious deformation of the welding part of the electric heating wire. When welding the edge seal of the product, it is impossible to ensure that the weld of the product is neat, which affects the welding quality of the product. When welding with electric heating wire, the whole body generates heat efficiently, which not only causes deformation problems, but may even catch fire, posing a great safety hazard.

[0003] Therefore, an edge sealing welding structure and an edge sealing welding device comprising the same are designed to solve the above problems.

[0004] It should be noted that the above technical background is merely for the purpose of providing a clear and complete description of the technical solutions of the present invention and to facilitate understanding by those skilled in the art. It should not be assumed that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present invention. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an edge seal welding structure and an edge seal welding device comprising the same.

[0006] To achieve the above objectives and other related objectives, the present invention provides a technical solution: an edge seal welding structure, comprising: a base, an upper end surface of the base being embedded with a closed-loop induction coil; a bottom plate, the bottom plate being arranged above the base, an upper end surface of the bottom plate being embedded with a heating wire assembly, the heating wire assembly being arranged correspondingly above and below the closed-loop induction coil; and a tensioning assembly, the tensioning assembly comprising two groups, each of which is arranged on either side of the heating wire assembly, the two groups of tensioning assemblies being elastically connected to both ends of the heating wire assembly. In this solution, when the heating wire assembly undergoes thermal expansion and deformation during the edge seal welding of the product, the tensioning assembly can be used to stretch and tighten the heating wire assembly toward both ends to ensure that the edge seal welding of the product is neat; after the product welding is completed, when the heating wire assembly undergoes thermal contraction and deformation, the two ends of the heating wire assembly shrink and reset, and the two ends can still be tensioned by the tensioning assembly, thereby tensioning the heating wire assembly regardless of thermal expansion or contraction.

[0007] Furthermore, the tensioning assembly includes a fixing plate fixed to the base, a connecting block disposed on the inner side of the fixing plate, a compression spring disposed on the outer side of the fixing plate, and a connecting rod connecting the connecting block and the compression spring; the connecting block is movably embedded in the end of the base, and the upper end of the connecting block is fixedly connected to the end of the heating wire assembly. In this solution, tensioning assemblies are provided on both sides of the heating wire assembly, and the compression springs can be used to pull the ends of the heating wire assembly. When the heating wire assembly is edge-sealed on the product, the heat generated by the welding will cause the heating wire to deform. The heating wire assembly can use the tension at both ends to cause the heating wire to stretch and deform axially, preventing the heat-conducting wire from deforming radially, thereby better ensuring the neatness of the product edge-sealing welding.

[0008] Furthermore, the heating wire assembly includes a first heating wire for edge seal welding, a second heating wire forming a closed-loop structure with the first heating wire, and thermally conductive plates disposed at both ends of the first heating wire, each of the thermally conductive plates having mounting holes. In this embodiment, the first heating wire and the second heating wire form a closed-loop heating wire structure, the first heating wire is used for edge seal welding of the product, and the thermally conductive plates at both ends of the first heating wire are connected to the tensioning assembly via the mounting holes. When the first heating wire heats up and deforms, the tensioning assembly tensions the first heating wire via the thermally conductive plates, preventing radial deformation of the first heating wire and ensuring neat edge seal welding of the product.

[0009] Furthermore, the first thermal wire is a straight wire, and the second thermal wire is a U-shaped wire with 90° bends at both ends. The two ends of the second thermal wire are welded to the two ends of the first thermal wire. In this solution, the straight first thermal wire facilitates welding a straight weld seam to the product edge seal, and the U-shaped second thermal wire forms a closed loop with the first thermal wire, facilitating welding between the two thermal wires.

[0010] Furthermore, the connecting rod is a bolt, which is threadedly connected to the connecting block. In this solution, the bolt is used as the connecting rod to connect the compression spring and the connecting block. By adjusting the length of the bolt screwed into the connecting block, different tensioning degrees of the tensioning assembly on the heating wire assembly can be achieved.

[0011] Furthermore, a baffle is provided on the outside of the compression spring. In this solution, a baffle is provided on the outside of the compression spring to facilitate the installation of the compression spring and ensure uniform force.

[0012] Furthermore, the material of the first heat conducting wire is stainless steel. In this solution, the first heat conducting wire is the heating welding part required for edge seal welding. Stainless steel is used as the heat conducting material because it heats quickly and improves welding efficiency.

[0013] Furthermore, the second heat-conducting wire is a copper wire. In this solution, the second heat-conducting wire is a part that does not need to be welded to the product. The copper wire has good thermal conductivity, is not easy to deform, is not easy to catch fire, and has good safety.

[0014] The utility model also provides an edge seal welding device, comprising the edge seal welding structure described in any one of the above technical solutions.

[0015] Furthermore, the device comprises an upper mold and a lower mold, wherein the lower end of the upper mold and the upper end of the lower mold are both provided with the edge seal welding structure. In this solution, when performing the edge seal welding operation on a product, the part to be welded is placed on the upper end surface of the lower mold, and then the equipment is started, the upper mold is pressed downward, and the two heating wires in the upper and lower molds act simultaneously to weld the product edge seal.

[0016] Due to the application of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0017] The edge seal welding structure designed by the utility model is compared with the traditional heating wire welding structure. When the heating wire generates thermal expansion and deformation, the heating wire can be stretched and tensioned to both ends through the tensioning component to ensure neat edge seal welding of the product; when the two ends of the heating wire are deformed by cold contraction, the two ends can still be tensioned by the tensioning component. Regardless of thermal expansion or cold contraction, the heating wire can be tensioned to prevent deformation of the heating wire and ensure the welding quality of the product; the heating wire is welded together by different heating materials, and the heating welding area of ​​the heating wire maintains efficient heating, while the heating efficiency of other areas of the heating wire is reduced, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the edge seal welding structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the edge seal welding structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the heating wire assembly of the utility model;

[0021] Figure 4 This is an enlarged view of part A of the present utility model;

[0022] Figure 5 This is a schematic diagram of the tensioning assembly structure of the utility model;

[0023] Figure 6 This is a schematic structural diagram of the edge seal welding equipment of the present utility model;

[0024] In the above drawings, 1. base; 2. closed-loop induction coil; 3. bottom plate; 4. heating wire assembly; 41. first thermal wire; 42. second thermal wire; 43. thermal conductive sheet; 44. mounting hole; 5. tensioning assembly; 51. fixing plate; 52. connecting block; 53. compression spring; 54. connecting rod; 55. baffle; 6. upper mold; 7. lower mold. DETAILED DESCRIPTION

[0025] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0026] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0030] Example 1: See attached Figure 1 and attached Figure 2 As shown, this embodiment provides an edge seal welding structure, comprising: a base 1, wherein a closed-loop induction coil 2 is embedded in the upper end surface of the base 1; a bottom plate 3, which is arranged above the base 1 and wherein a heating wire assembly 4 is embedded in the upper end surface of the bottom plate 3. The heating wire assembly 4 is arranged corresponding to the closed-loop induction coil 2 above and below; and a tensioning assembly 5, wherein two sets of tensioning assemblies 5 are respectively arranged on both sides of the heating wire assembly 4, and the two sets of tensioning assemblies 5 are elastically connected to the two ends of the heating wire assembly 4. In this embodiment, when the heating wire assembly 4 undergoes thermal expansion and deformation during the edge seal welding of the product, the tensioning assembly 5 can be used to stretch and tighten the heating wire assembly 4 at both ends to ensure that the edge seal welding of the product is neat. After the product welding is completed, when the heating wire assembly 4 contracts and deforms due to cold, the two ends of the heating wire assembly 4 shrink and return to their original position, but the two ends can still be tensioned by the tensioning assembly 5. Regardless of thermal expansion or cold contraction, the heating wire assembly 4 can be tensioned.

[0031] Example 2: See attached Figure 4 and attached Figure 5As shown, this embodiment is a further improvement on the first embodiment. Specifically, the tensioning assembly 5 includes a fixing plate 51 fixed to the base 1, a connecting block 52 disposed inside the fixing plate 51, a compression spring 53 disposed outside the fixing plate 51, and a connecting rod 54 connecting the connecting block 52 and the compression spring 53. The connecting block 52 is movably embedded in the end of the base 1, and the upper end of the connecting block 52 is fixedly connected to the end of the heating wire assembly 4. In this embodiment, the tensioning assemblies 5 are disposed on both sides of the heating wire assembly 4, and the compression springs 53 can be used to pull the ends of the heating wire assembly 4. When the heating wire assembly 4 is welded to the edge of the product, the heat generated by the welding will cause the heating wire to deform. The tension at both ends of the heating wire assembly 4 can cause the heating wire to stretch and deform axially, preventing the heat-conducting wire from deforming radially, thereby better ensuring a neat edge seal weld.

[0032] Example 3: See attached Figure 3 As shown, this embodiment is a further improvement on the basis of the first embodiment, and its specific method is as follows: the heating wire assembly 4 includes a first thermal wire 41 for edge seal welding, a second thermal wire 42 forming a closed loop structure with the first thermal wire 41, and thermal conductive plates 43 provided at both ends of the first thermal wire 41, and the thermal conductive plates 43 are provided with mounting holes 44. In this embodiment, the first thermal wire 41 and the second thermal wire 42 form a closed loop heating wire structure, the first thermal wire 41 is used for product edge seal welding, and the thermal conductive plates 43 at both ends of the first thermal wire 41 are connected to the tensioning assembly 5 through the mounting holes 44. When the first thermal wire 41 heats up and deforms, the tensioning assembly 5 tensions the first thermal wire 41 through the thermal conductive plates 43, preventing the first thermal wire 41 from deforming in the radial direction and ensuring neat product edge seal welding.

[0033] Example 4: See attached Figure 3 As shown, this embodiment is a further improvement on the third embodiment. Specifically, the first thermal wire 41 is a straight wire, and the second thermal wire 42 is a U-shaped wire with 90° bends at both ends. The two ends of the second thermal wire 42 are welded to the two ends of the first thermal wire 41. In this embodiment, the straight first thermal wire 41 facilitates welding a straight weld seam for the product edge seal, and the U-shaped second thermal wire 42 forms a closed loop with the first thermal wire 41, facilitating welding between the two thermal wires.

[0034] Example 5: See attached Figure 4As shown, this embodiment is a further improvement on the second embodiment, specifically, the connecting rod 54 is a bolt, which is threadedly connected to the connecting block 52. In this embodiment, the bolt is used as the connecting rod 54 to connect the compression spring 53 to the connecting block 52. By adjusting the length of the bolt screwed into the connecting block 52, the tensioning assembly 5 can achieve different tensioning degrees on the heating wire assembly 4.

[0035] Example 6: See attached Figure 4 and attached Figure 5 As shown, this embodiment is a further improvement on the second embodiment. Specifically, a baffle 55 is provided on the outside of the compression spring 53. In this embodiment, the baffle 55 is provided on the outside of the compression spring 53 to facilitate installation of the compression spring 53 and ensure uniform force distribution. The baffle 55 is circular and has a diameter greater than that of the compression spring 53.

[0036] Example 7: Not shown in the accompanying drawings, this example is a further improvement based on Example 3, and its specific method is as follows: the material of the first heat-conducting wire 41 is stainless steel; the second heat-conducting wire 42 is a copper wire. In this embodiment, the first heat-conducting wire 41 is the heating welding part required for edge sealing welding. Stainless steel is used as the heat-conducting material to heat quickly and improve welding efficiency. The second heat-conducting wire 42 is the part that does not need to be in contact with the product during welding. Copper wire is used because of its good thermal conductivity, not easy to deform, not easy to ignite, and good safety. The first heat-conducting wire 41 and the second heat-conducting wire 42 are welded together using different heating materials, which can achieve the purpose of eddy current welding with single-pass welding without damaging the heating wire. The heating welding area of ​​the heating wire uses stainless steel material to maintain efficient heating, and the other areas of the heating wire use copper wire to reduce heating efficiency and reduce safety hazards.

[0037] Example 8: See attached Figure 6 As shown, this embodiment provides an edge seal welding device, including the edge seal welding structure of any one of the above embodiments. This edge seal welding device includes an upper mold 6 and a lower mold 7, and the lower end of the upper mold 6 and the upper end of the lower mold 7 are both provided with an edge seal welding structure. In this embodiment, when the edge seal welding device performs edge seal welding on a product, the part of the product to be welded is placed on the upper end surface of the lower mold 7, and then the device is started to press the upper mold 6 downward. The two heating wires in the upper mold 6 and the lower mold 7 act simultaneously up and down to perform edge seal welding on the product; because the edge seal welding structure used can tension the heating wire, it can ensure that the edge seal welding of the product is neat and the welding quality is guaranteed.

[0038] The edge seal welding structure designed by the utility model is compared with the traditional heating wire welding structure. When the heating wire generates thermal expansion and deformation, the heating wire can be stretched and tensioned to both ends through the tensioning component to ensure neat edge seal welding of the product; when the two ends of the heating wire are deformed by cold contraction, the two ends can still be tensioned by the tensioning component. Regardless of thermal expansion or cold contraction, the heating wire can be tensioned to prevent deformation of the heating wire and ensure the welding quality of the product; the heating wire is welded together by different heating materials, and the heating welding area of ​​the heating wire maintains efficient heating, while the heating efficiency of other areas of the heating wire is reduced, thereby reducing safety hazards.

[0039] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. An edge seal welding structure, characterized in that: include: A base (1), wherein the upper end surface of the base (1) is embedded with a closed-loop induction coil (2); A bottom plate (3), the bottom plate (3) being arranged above the base (1), the upper end surface of the bottom plate (3) being embedded with a heating wire assembly (4), the heating wire assembly (4) being arranged correspondingly to the closed-loop induction coil (2) above and below; A tensioning assembly (5), wherein the tensioning assembly (5) has two groups and is respectively arranged on both sides of the heating wire assembly (4), and the two groups of the tensioning assembly (5) are elastically connected to the two ends of the heating wire assembly (4).

2. The edge seal welding structure according to claim 1, characterized in that: The tensioning assembly (5) comprises a fixing plate (51) fixed on the base (1), a connecting block (52) arranged on the inner side of the fixing plate (51), a compression spring (53) arranged on the outer side of the fixing plate (51), and a connecting rod (54) connecting the connecting block (52) and the compression spring (53); the connecting block (52) is movably embedded in the end of the base (1), and the upper end of the connecting block (52) is fixedly connected to the end of the heating wire assembly (4).

3. The edge seal welding structure according to claim 1, characterized in that: The heating wire assembly (4) comprises a first heat-conducting wire (41) for edge-sealing welding, a second heat-conducting wire (42) forming a closed-loop structure with the first heat-conducting wire (41), and heat-conducting sheets (43) arranged at both ends of the first heat-conducting wire (41), wherein each of the heat-conducting sheets (43) is provided with a mounting hole (44).

4. The edge seal welding structure according to claim 3, characterized in that: The first heat-conducting wire (41) is a straight heat-conducting wire, and the second heat-conducting wire (42) is a U-shaped heat-conducting wire with two ends bent at 90 degrees, and the two ends of the second heat-conducting wire (42) are respectively welded to the two ends of the first heat-conducting wire (41).

5. The edge seal welding structure according to claim 2, characterized in that: The connecting rod (54) is a bolt, and the bolt is threadedly connected to the connecting block (52).

6. The edge seal welding structure according to claim 2, characterized in that: A baffle (55) is provided on the outside of the compression spring (53).

7. The edge seal welding structure according to claim 3, characterized in that: The material of the first heat conducting wire (41) is stainless steel.

8. The edge seal welding structure according to claim 3, characterized in that: The second heat conducting wire (42) is a copper conducting wire.

9. An edge seal welding device, characterized in that: The edge seal welding structure comprises the edge seal welding structure according to any one of claims 1 to 8.

10. The edge seal welding equipment according to claim 9, characterized in that: It comprises an upper mold (6) and a lower mold (7), wherein the lower end of the upper mold (6) and the upper end of the lower mold (7) are both provided with an edge sealing welding structure.

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