Arc surface woven mesh and ultrasonic welding device for producing same

Abstract

The utility model discloses an ultrasonic welding device which comprises a base, a lower die, a rounding block assembly, an edge closing assembly and an ultrasonic welding upper die, the lower die is fixed to the base, and a positioning groove and a semicircular groove are formed in the top of the lower die; the rounding block assembly comprises a rounding block and a rounding block lifting mechanism, and the rounding block is located over the semicircular groove; the edge closing assembly comprises a first sliding block and a second sliding block, and the first sliding block and the second sliding block are arranged on the top of the lower die in a sliding mode and located on the two sides of the semicircular groove respectively. And the ultrasonic welding upper die is arranged above the semicircular groove. The utility model further discloses an arc-surface woven mesh which is processed by the ultrasonic welding device. The device is simple in structure and convenient to operate, the working efficiency of welding of the woven mesh is improved, in addition, the woven mesh is limited through the semicircular grooves and the rounding blocks, the circle diameter and the welding width of the arc-surface woven mesh produced every time are consistent, and the quality of batch production of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of woven mesh processing, in particular to a circular arc surface woven mesh and an ultrasonic welding device for producing the same. Background Art

[0002] Woven mesh refers to a mesh product made of steel, iron, or stainless steel wire. It features high compressive strength, high temperature resistance, chemical resistance, and good wear resistance, and is often used as a heat-conducting and heat-resistant material. Depending on the application, the mesh often needs to be processed into a circular arc structure.

[0003] Currently, ultrasonic welding is used to process woven mesh into arc surfaces. First, the flat woven mesh is manually wrapped into a circle with an arc-shaped fixture, and the long sides of the welding position are overlapped. Then, the fixture with the woven mesh is placed in the lower mold and fixed, and then ultrasonic welding is performed. The production efficiency is low, and during the welding process, some woven mesh will spread out. In addition, the circle diameter and welding width of the product produced are not uniform, resulting in some products being unqualified. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a circular arc surface woven mesh and an ultrasonic welding device for producing the same, so as to solve the problem of inconsistent circular diameter and welding width of products processed by the arc surface of the woven mesh in the existing technology and improve production efficiency.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Ultrasonic welding device, comprising:

[0007] base;

[0008] A lower mold is fixed on the base, and a positioning groove and a semicircular groove are provided on the top of the lower mold. The semicircular groove is provided in the middle position of the length direction of the positioning groove, and the length direction of the semicircular groove is perpendicular to the length direction of the positioning groove;

[0009] A rounding block assembly, comprising a rounding block and a rounding block lifting mechanism, wherein the rounding block is located directly above the semicircular groove, and the rounding block lifting mechanism is used to drive the rounding block to move up and down, and when the rounding block moves downward, it is used to press the woven mesh into the semicircular groove so that the middle position of the woven mesh has a semicircular structure;

[0010] The edge trimming assembly includes a first slider and a second slider, wherein the first slider and the second slider are respectively slidably arranged on the top of the lower mold and located on both sides of the semicircular groove, and the sliding direction of the first slider and the second slider is the same as the length direction of the positioning groove. When the first slider and the second slider move toward the semicircular groove, they are used to fold the woven mesh on the top of the rounded block;

[0011] The ultrasonic welding upper die is arranged above the semicircular groove and is used for ultrasonically welding the woven mesh on the top of the rounded block.

[0012] As a further improvement of the above technical solution, a welding plane is provided on the top of the rounded block, and the two sides of the woven mesh are overlapped and located on the welding plane.

[0013] As a further improvement of the above technical solution, the rounding block lifting mechanism includes a first cylinder, a fixed end of the first cylinder is fixedly connected to the base, and a movable end of the first cylinder is fixedly connected to the rounding block.

[0014] As a further improvement of the above technical solution, a plurality of positioning grooves are arranged in parallel.

[0015] As a further improvement of the above technical solution, the lower mold is provided with a plurality of positioning holes, all of which are connected to the bottom of the semicircular groove. A positioning rod is slidably connected in the positioning hole, and the positioning rod is used to position the notch on the side of the woven mesh when extended.

[0016] As a further improvement of the above technical solution, a positioning rod lifting drive member for lifting the positioning rod is provided at the bottom of the lower mold.

[0017] As a further improvement of the above technical solution, a chamfered block support is provided on the lower mold, and an arc-shaped groove is provided on the top of the chamfered block support. When the chamfered block moves downward and presses the woven mesh, it abuts against the arc-shaped groove.

[0018] As a further improvement of the above technical solution, a first arcuate surface is provided on the side of the first slider close to the semicircular groove, and a second arcuate surface is provided on the side of the second slider close to the semicircular groove, and the first arcuate surface and the second arcuate surface are both coaxial with the semicircular groove.

[0019] As a further improvement of the above technical solution, a first transverse driving member and a second transverse driving member are provided on the lower mold, and the first transverse driving member and the second transverse driving member are respectively used to drive the first slider and the second slider to move.

[0020] The technical solution of the utility model also includes:

[0021] A circular arc surface woven mesh is formed by bending a rectangular woven mesh body. Notches are provided on both sides of the long side of the woven mesh body. The two short sides of the woven mesh body have overlapping areas, and the overlapping areas are welded and connected by the above-mentioned ultrasonic welding device.

[0022] The beneficial effects of the utility model are:

[0023] The woven mesh is placed in the positioning groove, and the chamfering block is moved downward to press the woven mesh into a semicircular shape. The first slider is moved to overlap one side of the woven mesh on top of the chamfering block, and the second slider is moved to overlap the other side of the woven mesh on top of the chamfering block, so that the two sides of the woven mesh overlap. The ultrasonic welding upper mold is moved downward to perform ultrasonic welding, resulting in a woven mesh product with a circular arc surface. The device of the utility model has a simple structure and is easy to operate, which improves the efficiency of woven mesh welding. In addition, the woven mesh is defined by the semicircular groove and the chamfering block, so that the circular diameter and welding width of the circular arc surface woven mesh produced at each production location are consistent, thereby improving the quality of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the assembly of the ultrasonic welding device in the embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the ultrasonic welding device in the embodiment of the present utility model;

[0027] Figure 3 This is a front view of the ultrasonic welding device in the embodiment of the present utility model;

[0028] Figure 4 yes Figure 3 A partial enlarged view of middle A;

[0029] Figure 5 This is a schematic structural diagram of the lower mold of the ultrasonic welding device in the embodiment of the present utility model;

[0030] Figure 6 yes Figure 5 A top view of

[0031] Figure 7 yes Figure 6 Cross-sectional view of AA;

[0032] Figure 8 This is a schematic structural diagram of a rounded block of an ultrasonic welding device according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the woven mesh product before and after welding in Example 2 of the present invention.

[0034] Figure numerals: 1. base; 2. lower mold; 3. semicircular groove; 4. chamfered block; 41. welding plane; 5. first cylinder; 6. first slider; 61. first curved surface; 7. third cylinder; 8. second slider; 81. second curved surface; 9. fourth cylinder; 10. chamfered block support; 11. ultrasonic welding upper mold; 12. curved groove; 13. positioning rod; 14. positioning groove. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. For example, fixed connection / fixed installation can be selected from screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other methods as needed. For detachable connection, screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, Velcro connection and other methods can be selected as needed. The various technical features in the creation of the present invention can be combined interchangeably without conflicting with each other.

[0036] Reference Figure 1-8 , Example 1 of the present invention provides an ultrasonic welding device, including a base 1, a lower mold 2, a rounding block assembly, a trimming assembly and an ultrasonic welding upper mold 11, wherein the lower mold 2 is fixed on the base 1, and a positioning groove 14 and a semicircular groove 3 are provided on the top of the lower mold 2, wherein the semicircular groove 3 is provided in the middle position of the length direction of the positioning groove 14, and the length direction of the semicircular groove 3 is perpendicular to the length direction of the positioning groove 14, so that the woven mesh product (woven mesh structure reference Figure 9 ) is placed in the positioning groove 14, the semicircular groove 3 is located just below the middle position of the woven mesh.

[0037] The chamfering block assembly includes a chamfering block 4 and a chamfering block lifting mechanism. The chamfering block 4 is located directly above the semicircular groove 3. The chamfering block lifting mechanism is used to drive the chamfering block 4 to move up and down, and when the chamfering block 4 moves downward, it is used to press the woven mesh into the semicircular groove 3 so that the middle position of the woven mesh has a semicircular structure, which is convenient for the next operation.

[0038] The edge trimming assembly includes a first slider 6, a second slider 8, a first transverse driving member and a second transverse driving member, the first transverse driving member and the second transverse driving member are respectively used to drive the first slider 6 and the second slider 8 to move, the first slider 6 and the second slider 8 are respectively slidably set on the top of the lower mold 2 and located on both sides of the semicircular groove 3, and the sliding direction of the first slider 6 and the second slider 8 is the same as the length direction of the positioning groove 14, so that when the first slider 6 and the second slider 8 move toward the semicircular groove 3, the woven mesh is folded on the top of the chamfered block 4, so that the woven mesh as a whole has a circular arc surface structure.

[0039] The ultrasonic welding upper mold 11 is arranged above the semicircular groove 3 and is used for ultrasonically welding the woven mesh on the top of the chamfered block 4. The ultrasonic welding upper mold 11 is part of the ultrasonic welding equipment. The ultrasonic welding equipment is existing technology and will not be introduced in this embodiment.

[0040] In this embodiment, the specific steps of welding the woven mesh product are as follows: placing the woven mesh into the positioning groove 14, the chamfered block lifting mechanism drives the chamfered block 4 to move downward, and the chamfered block 4 presses the woven mesh into the semicircular groove 3 so that the middle position of the woven mesh is semicircular, and then the first slider 6 moves to overlap one side of the woven mesh on the top of the chamfered block 4, and the second slider 8 moves to overlap the other side of the woven mesh on the top of the chamfered block 4, so that the two sides of the woven mesh overlap, and at this time the woven mesh has a circular arc surface structure, and the ultrasonic welding upper mold 11 moves downward for ultrasonic welding, so that the overlapping parts on both sides of the woven mesh are bonded together, thereby obtaining a woven mesh product with a circular arc surface.

[0041] In some embodiments, reference Figure 7 A welding plane 41 is provided on the top of the rounded block 4, and the two sides of the woven mesh are overlapped and located on the welding plane 41, so that the ultrasonic welding upper mold 11 can move downward to have a larger contact area with the top of the rounded block 4, which can prevent the woven mesh from spreading during welding and improve the welding quality of the woven mesh.

[0042] In a more preferred embodiment, referring to Figure 4 The first slider 6 is provided with a first arc surface 61 on the side close to the semicircular groove 3, and the second slider 8 is provided with a second arc surface 81 on the side close to the semicircular groove 3, and the first arc surface 61 and the second arc surface 81 are both coaxial with the semicircular groove 3. In this way, when the first slider 6 and the second slider 8 push the woven mesh to move, the woven mesh is attached to the chamfered block 4, thereby improving the quality of the arc surface structure of the woven mesh product.

[0043] In this embodiment, referring to Figure 2 、 Figure 5 、 Figure 6 and Figure 7 The positioning grooves 14 are arranged in parallel in a plurality, so that multiple woven meshes can be processed at one time, thereby improving production efficiency. Specifically, there are two positioning grooves 14, and the lower mold 2 is provided with three positioning holes. The three positioning holes are all connected to the bottom of the semicircular groove 3. The positioning holes are slidably connected to the positioning rods 13. When the woven mesh is positioned, the positioning rods 13 move upward and extend to locate the notch on the side of the woven mesh, thereby improving the positioning accuracy of the woven mesh.

[0044] Furthermore, a positioning rod lifting drive component is provided at the bottom of the lower mold 2 for lifting and lowering the positioning rod 13. When the woven mesh is positioned, the positioning rod lifting drive component drives the positioning rod 13 to extend upward. When the rounding block 4 moves downward to press the woven mesh, the positioning rod lifting drive component drives the positioning rod 13 to move downward to avoid the rounding block 4 to prevent the two from colliding.

[0045] In some embodiments, reference Figure 1-Figure 5 The lower mold 2 is provided with a chamfered block support 10, and the top of the chamfered block support 10 is provided with an arc groove 12. When the chamfered block 4 moves downward and presses the woven mesh, it abuts against the arc groove 12. In this way, when the chamfered block 4 presses the woven mesh, the chamfered block support 10 can provide supporting force to avoid excessive pressure of the chamfered block 4 on the woven mesh and causing damage to it.

[0046] In this embodiment, the rounding block lifting mechanism, the positioning rod lifting drive, the first transverse driving member and the second transverse driving member all use cylinders, and PLC is used in this scheme to control the operation of the cylinders and the ultrasonic welding upper mold 11. By controlling the action sequence and time of each cylinder and the ultrasonic welding upper mold 11 by PLC, the welding work of the woven mesh can be carried out quickly to improve production efficiency.

[0047] Specifically, refer to Figure 2, each cylinder is named as the first cylinder 5, the second cylinder, the third cylinder 7 and the fourth cylinder 9 respectively. The fixed end of the first cylinder 5 is fixedly connected to the base 1, and the movable end of the first cylinder 5 is fixedly connected to the chamfered block 4. When the first cylinder 5 is extended or retracted, the chamfered block 4 is driven to move up and down. The fixed end of the second cylinder is fixedly connected to the base 1, and the bottom of the positioning rod 13 is fixedly connected to the output end of the second cylinder. When the second cylinder is extended or retracted, the positioning rod 13 is driven to move up and down. The fixed end of the third cylinder 7 is fixedly connected to the top of the lower mold 2, and the movable end of the third cylinder 7 is connected to the end of the first slider 6 away from the semicircular groove 3. When the third cylinder 7 is extended or retracted, the first slider 6 is driven to move horizontally left and right. The fixed end of the fourth cylinder 9 is fixedly connected to the top of the lower mold 2, and the movable end of the fourth cylinder 9 is connected to the end of the second slider 8 away from the semicircular groove 3. When the fourth cylinder 9 is extended or retracted, the second slider 8 is driven to move horizontally left and right.

[0048] In other embodiments, the positioning rod lifting drive member may adopt a spring, which is connected between the base 1 and the positioning rod 13. When the spring is in a natural state, the positioning rod 13 is in an extended state. When the rounded block 4 moves downward, it pushes the positioning rod 13 to move downward. At this time, the spring is in a compressed state. When the rounded block 4 moves upward, the positioning rod 13 moves upward and resets under the action of the spring.

[0049] Reference Figure 9 Example 2 of the present utility model discloses a circular arc surface woven mesh, which is formed by bending a rectangular woven mesh body. Notches are provided on both sides of the long side of the woven mesh body. The two short sides of the woven mesh body have an overlapping area, and the overlapping area is welded and connected by the ultrasonic welding device in Example 1.

[0050] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An ultrasonic welding device, characterized in that: include: base; A lower mold is fixed on the base, and a positioning groove and a semicircular groove are provided on the top of the lower mold. The semicircular groove is provided in the middle position of the length direction of the positioning groove, and the length direction of the semicircular groove is perpendicular to the length direction of the positioning groove; A rounding block assembly, comprising a rounding block and a rounding block lifting mechanism, wherein the rounding block is located directly above the semicircular groove, and the rounding block lifting mechanism is used to drive the rounding block to move up and down, and when the rounding block moves downward, it is used to press the woven mesh into the semicircular groove so that the middle position of the woven mesh has a semicircular structure; The edge trimming assembly includes a first slider and a second slider, wherein the first slider and the second slider are respectively slidably arranged on the top of the lower mold and located on both sides of the semicircular groove, and the sliding direction of the first slider and the second slider is the same as the length direction of the positioning groove. When the first slider and the second slider move toward the semicircular groove, they are used to fold the woven mesh on the top of the rounded block; The ultrasonic welding upper die is arranged above the semicircular groove and is used for ultrasonically welding the woven mesh on the top of the rounded block.

2. The ultrasonic welding device according to claim 1, characterized in that: A welding plane is provided on the top of the rounded block, and the two sides of the woven mesh are overlapped and located on the welding plane.

3. The ultrasonic welding device according to claim 2, characterized in that: The rounding block lifting mechanism includes a first cylinder, a fixed end of the first cylinder is fixedly connected to the base, and a movable end of the first cylinder is fixedly connected to the rounding block.

4. The ultrasonic welding device according to claim 1, wherein: A plurality of positioning grooves are arranged in parallel.

5. The ultrasonic welding device according to claim 4, characterized in that: The lower die is provided with a plurality of positioning holes, and the positioning holes are all communicated with the bottom of the semicircular groove. A positioning rod is slidably connected in the positioning hole, and the positioning rod is used to position the notch on the side of the woven mesh when it is extended.

6. The ultrasonic welding device according to claim 5, characterized in that: A positioning rod lifting driving member for lifting the positioning rod is provided at the bottom of the lower mold.

7. The ultrasonic welding device according to claim 1, characterized in that: The lower die is provided with a rounding block support, and the top of the rounding block support is provided with an arc groove. When the rounding block moves downward and presses the woven mesh, it abuts against the arc groove.

8. The ultrasonic welding device according to claim 1, characterized in that: A first arcuate surface is provided on the side of the first slider close to the semicircular groove, and a second arcuate surface is provided on the side of the second slider close to the semicircular groove. Both the first arcuate surface and the second arcuate surface are coaxial with the semicircular groove.

9. The ultrasonic welding device according to claim 8, characterized in that: The lower mold is provided with a first transverse driving member and a second transverse driving member, and the first transverse driving member and the second transverse driving member are respectively used to drive the first slider and the second slider to move.

10. A circular arc woven mesh, formed by bending a rectangular woven mesh body, characterized by: Notches are provided on both sides of the long side of the woven mesh body, and the two short sides of the woven mesh body have an overlapping area, and the overlapping area is welded and connected by the ultrasonic welding device according to any one of claims 1 to 9.

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