Ultrasonic welding device for bulletproof UD cloth

Abstract

The utility model provides an ultrasonic welding device for bulletproof UD cloth, which comprises a machine frame, a welding assembly used for conducting ultrasonic welding on the bulletproof UD cloth is installed at the upper end of the machine frame, the machine frame comprises a base used for installing the welding assembly and a pre-pressing and flattening mechanism used for conducting rolling and flattening on a bulletproof UD cloth raw material layer, and the pre-pressing and flattening mechanism is used for conducting rolling and flattening on the bulletproof UD cloth raw material layer. Compared with the prior art, the bulletproof UD cloth welding device has the advantages that the pre-pressing and flattening mechanism is arranged and matched with the tension maintaining mechanism, after bulletproof UD cloth passes through an upper pressing roller and a bearing roller of the pre-pressing and flattening mechanism, the to-be-welded part of the bulletproof UD cloth is flattened, and the welding quality is improved. And in addition, the rear side tension maintaining mechanism pulls the welded part, so that the bulletproof UD cloth part to be welded is in a pulled and flattened state, and the welding firmness of the welded bulletproof UD cloth part is firmer than that of bulletproof UD cloth with wrinkles.

Description

Technical Field

[0001] This utility model belongs to the field of fabric welding technology, and specifically relates to an ultrasonic welding device for bulletproof UD fabric. Background Technology

[0002] In the ultrasonic welding process of bulletproof UD fabric, the contact quality between the welding head and the material being welded directly affects the welding effect. Insufficient weld strength will affect the overall performance of the bulletproof material. Some ultrasonic welding devices cannot properly tension the bulletproof UD fabric during welding, which can easily lead to weld wrinkles and insufficient weld strength.

[0003] Common methods for addressing these issues include increasing welding time or modifying welding patterns to improve weld quality. However, such adjustments often lead to decreased production efficiency and increased production costs and time. Furthermore, while manual adjustment of welding parameters can improve some welding problems in the short term, differences in operator experience and skill affect the stability of the welding results, potentially resulting in a higher defect rate. Therefore, we aim to design an ultrasonic welding device for bulletproof UD fabric with a novel structure to solve this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an ultrasonic welding device for bulletproof UD fabric, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: an ultrasonic welding device for bulletproof UD fabric, comprising: a frame, wherein a welding component for ultrasonic welding of bulletproof UD fabric is installed at the upper end of the frame, and the frame includes a base for mounting the welding component and a pre-pressing and flattening mechanism for rolling and flattening the raw material layer of bulletproof UD fabric.

[0006] A pre-compression flattening mechanism is installed on the front side of the upper end of the base, and a tension maintaining mechanism for tensioning the bulletproof UD fabric is installed on the rear side of the upper end of the base. The welding assembly includes a mounting plate for mounting an ultrasonic generator and an ultrasonic generator for welding the bulletproof UD fabric.

[0007] In a preferred embodiment, the frame further includes a horizontal plate and a support plate. A horizontal plate for installing welding components is welded to the middle of the upper end of the base, and a support plate is installed on the upper side of the front end of the base.

[0008] In a preferred embodiment, the support plate is placed directly behind the pre-pressing and flattening mechanism. The pre-pressing and flattening mechanism includes a mounting base for installing the upper pressure roller and the support roller, as well as an upper pressure roller for pressing and flattening the bulletproof UD fabric raw material layer. The support plate is provided to support the part of the bulletproof UD fabric to be welded, so as to facilitate the alignment and compression welding of the welding head.

[0009] In a preferred embodiment, the left and right ends of the upper pressure roller are fixedly connected to a mounting base via a bearing and a bearing seat, respectively. A support roller is rotatably mounted on the lower side between the two mounting bases via a bearing and a bearing seat. The height of the upper surface of the support plate is flush with the height of the upper surface of the support roller. In actual use, the pre-pressing and flattening mechanism can flatten the bulletproof UD fabric raw material layer. Combined with the tension maintaining mechanism, the bulletproof UD fabric raw material layer can be stretched and flattened during welding, thereby avoiding wrinkles during welding and thus helping to improve the strength of the weld.

[0010] In a preferred embodiment, the frame further includes a tension maintaining mechanism for pulling the welded bulletproof UD fabric. The structure of the tension maintaining mechanism is the same as that of the pre-compression flattening mechanism, and the height of the upper surface of the support plate is flush with the height of the middle of the tension maintaining mechanism.

[0011] On the upper surface of the support plate, there are two movable baffles on the left and right sides, which are used to limit the movement of the bulletproof UD fabric. The cross-section of the baffles is L-shaped.

[0012] In a preferred embodiment, the welding assembly further includes a welding head for directly pressing and ultrasonically welding the bulletproof UD fabric. The welding head is fixedly connected to the lower end of an ultrasonic generator mounted on the upper side of the mounting plate. Multiple welding heads and ultrasonic generators are provided and distributed at equal intervals.

[0013] In a preferred embodiment, the welding assembly further includes a connecting plate and a cylinder, with a connecting plate welded to the left and right sides of the mounting plate for sliding connection with the cylinder.

[0014] In a preferred embodiment, the left and right sides of the mounting plate are slidably connected to a cylinder, and the rear sides of the two cylinders are fixedly connected to the left and right sides of the front surface of the horizontal plate, respectively.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are: 1. By setting a pre-press flattening mechanism and cooperating with a tension maintaining mechanism, after the bulletproof UD fabric passes through the upper pressure roller and support roller of the pre-press flattening mechanism, the part of the bulletproof UD fabric to be welded is flattened. In addition, the rear tension maintaining mechanism pulls the part that has been welded, so that the part of the bulletproof UD fabric to be welded is in a state of tension and flattening. At this time, the bulletproof UD fabric has no wrinkles. After the welding head finishes welding the bulletproof UD fabric, the welded part of the bulletproof UD fabric has a stronger weld than the welded part of the bulletproof UD fabric with wrinkles.

[0016] 2. The welding assembly, in conjunction with the pre-compression flattening mechanism, enables stable and continuous welding of bulletproof UD fabric, which not only helps improve welding efficiency but also ensures the strength of the weld. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an ultrasonic welding device for bulletproof UD fabric according to the present invention.

[0019] Figure 2 This is a schematic diagram showing the connection between the frame and welding components of an ultrasonic welding device for bulletproof UD fabric according to this utility model.

[0020] Figure 3 This is a schematic diagram of the pre-compression and flattening mechanism structure of an ultrasonic welding device for bulletproof UD fabric according to this utility model.

[0021] Figure 4 This is a schematic diagram of the tension maintaining mechanism structure of an ultrasonic welding device for bulletproof UD fabric according to the present invention.

[0022] Figure 5 This is a schematic diagram of the welding component structure of an ultrasonic welding device for bulletproof UD fabric according to the present invention.

[0023] Figure 6 This is a schematic diagram of the explosive structure of the welding component of an ultrasonic welding device for bulletproof UD fabric according to this utility model.

[0024] In the diagram, 100-frame, 110-base, 120-horizontal plate, 130-pre-compression and flattening mechanism, 131-mounting seat, 132-upper pressure roller, 133-supporting roller, 140-supporting plate, 150-tension maintaining mechanism;

[0025] 200-Welding assembly, 210-Welding head, 220-Mounting plate, 230-Connecting plate, 240-Cylinder, 250-Ultrasonic generator. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 6 This utility model provides a technical solution: an ultrasonic welding device for bulletproof UD fabric, comprising: a frame 100, a welding component 200 for ultrasonic welding of bulletproof UD fabric installed on the upper end of the frame 100, the frame 100 including a base 110 for mounting the welding component 200 and a pre-pressing and flattening mechanism 130 for rolling and flattening the raw material layer of bulletproof UD fabric.

[0028] A pre-compression flattening mechanism 130 is installed on the front side of the upper end of the base 110, and a tension maintaining mechanism 150 for tensioning the bulletproof UD fabric is installed on the rear side of the upper end of the base 110. The welding assembly 200 includes a mounting plate 220 for mounting an ultrasonic generator 250 and an ultrasonic generator 250 for welding the bulletproof UD fabric.

[0029] Please see Figures 1 to 4 The frame 100 also includes a horizontal plate 120 and a support plate 140. The upper middle of the base 110 is welded with a horizontal plate 120 for installing the welding assembly 200, and the support plate 140 is installed on the upper front side of the base 110.

[0030] The support plate 140 is placed directly behind the pre-pressing and flattening mechanism 130. The pre-pressing and flattening mechanism 130 includes a mounting base 131 for mounting the upper pressure roller 132 and the support roller 133, and an upper pressure roller 132 for pressing and flattening the bulletproof UD fabric raw material layer. The support plate 140 is set to support the part of the bulletproof UD fabric to be welded, so as to facilitate the alignment and extrusion welding of the welding head 210.

[0031] The left and right ends of the upper pressure roller 132 are fixedly connected to a mounting base 131 through a bearing and a bearing seat, respectively. A support roller 133 is rotatably mounted on the lower side between the two mounting bases 131 through a bearing and a bearing seat. The height of the upper surface of the support plate 140 is flush with the height of the upper surface of the support roller 133. In actual use, the pre-press flattening mechanism 130 can flatten the bulletproof UD fabric raw material layer. In conjunction with the tension maintaining mechanism 150, the bulletproof UD fabric raw material layer can be tightened and flattened during welding, thereby avoiding wrinkles in the welding and thus helping to improve the strength of the welding.

[0032] The frame 100 also includes a tension maintaining mechanism 150 for pulling the welded bulletproof UD fabric. The structure of the tension maintaining mechanism 150 is the same as that of the pre-compression flattening mechanism 130, and the height of the upper surface of the support plate 140 is flush with the height of the middle of the tension maintaining mechanism 150.

[0033] On the upper surface of the support plate 140, there are two movable baffles on the left and right sides for limiting the bulletproof UD fabric. The baffles have an L-shaped cross-section. In actual use, the baffles are fixed to the support plate 140 with bolts. The width between the two baffles can be adjusted manually. Multiple linearly distributed screw holes are reserved on the left and right sides of the upper surface of the support plate 140 for installing the baffles.

[0034] As the first embodiment of this utility model, by setting a pre-press flattening mechanism 130 and cooperating with a tension maintaining mechanism 150, in actual use, since the left and right ends of the upper pressure roller 132 are fixedly connected to a mounting base 131 through a bearing and a bearing seat respectively, and a support rod 133 is rotatably installed on the lower side between the two mounting bases 131 through a bearing and a bearing seat, and the height of the upper surface of the support plate 140 is flush with the height of the upper surface of the support rod 133, after the bulletproof UD cloth passes through the upper pressure roller 132 and the support rod 133 of the pre-press flattening mechanism 130, the part of the bulletproof UD cloth to be welded is flattened. In addition, the rear tension maintaining mechanism 150 pulls the part that has been welded, so that the part of the bulletproof UD cloth to be welded is in a state of tension and flattening. At this time, the bulletproof UD cloth has no wrinkles. After the welding head 210 finishes welding the bulletproof UD cloth, the welded part of the bulletproof UD cloth is more firmly welded than the part of the bulletproof UD cloth with wrinkles.

[0035] Please see Figures 1 to 6 The welding assembly 200 also includes a welding head 210 for directly pressing and ultrasonically welding the bulletproof UD fabric. The welding head 210 is fixedly connected to the lower end of the ultrasonic generator 250 mounted on the upper side of the mounting plate 220. Multiple welding heads 210 and ultrasonic generators 250 are provided and distributed at equal intervals.

[0036] The welding assembly 200 also includes a connecting plate 230 and a cylinder 240. A connecting plate 230 for sliding connection with the cylinder 240 is welded to the left and right sides of the mounting plate 220 respectively. In actual use, the two cylinders 240 are a kind of synchronous cylinder. The two cylinders 240 drive the connecting plate 230 to slide up or down on the front side of the cylinder through synchronous movement, thereby driving the mounting plate connected to it to move up or down.

[0037] The left and right sides of the mounting plate 220 are slidably connected to a cylinder 240, and the rear sides of the two cylinders 240 are fixedly connected to the left and right sides of the front surface of the horizontal plate 120, respectively.

[0038] As a second embodiment of this utility model, based on the first embodiment described above, the welding assembly 200 is configured such that, in actual use, multiple equally spaced ultrasonic generators 250 and welding heads 210 are installed on the mounting plate 220 (the spacing between the ultrasonic generators 250 and welding heads 210 can be set according to actual usage requirements). When welding is required, the cylinder 240 is activated to drive the connecting plate 230 and the mounting plate 220 to move downwards. At this time, the welding head 210 contacts the bulletproof UD fabric on the upper side of the support plate 140 and completes ultrasonic welding. When the two are in contact, the feeding of the bulletproof UD fabric can be paused (a stepper motor is used to drive the bulletproof UD fabric forward). The welding assembly 200, in conjunction with the pre-press flattening mechanism 130, can stably and continuously weld the bulletproof UD fabric, which not only helps to improve welding efficiency but also ensures the strength of the weld.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic welding device for bulletproof UD fabric, comprising: The frame (100) is characterized in that a welding assembly (200) for ultrasonic welding of bulletproof UD fabric is installed at the upper end of the frame (100), and the frame (100) includes a base (110) for mounting the welding assembly (200) and a pre-pressing and flattening mechanism (130) for rolling and flattening the bulletproof UD fabric raw material layer. A pre-compression flattening mechanism (130) is installed on the front side of the upper end of the base (110), and a tension maintaining mechanism (150) for tensioning the bulletproof UD fabric is installed on the rear side of the upper end of the base (110). The welding assembly (200) includes a mounting plate (220) for mounting an ultrasonic generator (250) and an ultrasonic generator (250) for welding the bulletproof UD fabric.

2. The ultrasonic welding device for bulletproof UD fabric as described in claim 1, characterized in that: The frame (100) also includes a horizontal plate (120) and a support plate (140). The upper middle of the base (110) is welded with a horizontal plate (120) for installing welding components (200), and the support plate (140) is installed on the upper side of the front end of the base (110).

3. The ultrasonic welding device for bulletproof UD fabric as described in claim 2, characterized in that: The support plate (140) is placed directly behind the pre-pressing and flattening mechanism (130), which includes a mounting base (131) for mounting the upper pressure roller (132) and the support roller (133) and the upper pressure roller (132) for pressing and flattening the bulletproof UD fabric raw material layer.

4. The ultrasonic welding device for bulletproof UD fabric as described in claim 3, characterized in that: The left and right ends of the upper pressure roller (132) are fixedly connected to a mounting base (131) through a bearing and a bearing seat, respectively. A support roller (133) is rotatably installed between the two mounting bases (131) through a bearing and a bearing seat. The height of the upper surface of the support plate (140) is flush with the height of the upper surface of the support roller (133).

5. The ultrasonic welding device for bulletproof UD fabric as described in claim 4, characterized in that: The frame (100) also includes a tension maintaining mechanism (150) for pulling the welded bulletproof UD fabric. The structure of the tension maintaining mechanism (150) is the same as that of the pre-compression flattening mechanism (130), and the height of the upper surface of the support plate (140) is flush with the height of the middle of the tension maintaining mechanism (150). The support plate (140) has a baffle for limiting the movement of the bulletproof UD fabric on its left and right sides respectively on its upper surface. The baffle has an L-shaped cross-section.

6. The ultrasonic welding device for bulletproof UD fabric as described in claim 5, characterized in that: The welding assembly (200) also includes a welding head (210) for directly pressing and ultrasonically welding bulletproof UD fabric. The welding head (210) is fixedly connected to the lower end of an ultrasonic generator (250) mounted on the upper side of the mounting plate (220). Multiple welding heads (210) and ultrasonic generators (250) are provided and distributed at equal intervals.

7. The ultrasonic welding device for bulletproof UD fabric as described in claim 6, characterized in that: The welding assembly (200) also includes a connecting plate (230) and a cylinder (240), wherein a connecting plate (230) for sliding connection with the cylinder (240) is welded to the left and right sides of the mounting plate (220).

8. The ultrasonic welding device for bulletproof UD fabric as described in claim 7, characterized in that: The left and right sides of the mounting plate (220) are slidably connected to a cylinder (240) respectively, and the rear sides of the two cylinders (240) are fixedly connected to the left and right sides of the front surface of the cross plate (120) respectively.

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