A plexiglass jig with embedded blowing channels

Abstract

The utility model discloses an organic glass jig of inlaying blow -off channel relates to laser plastic hot melt welding jig technical field, including the pressing plate of organic glass material quality, the top central position of pressing plate is equipped with the through cavity, the bottom of through cavity penetrates the bottom wall of pressing plate, the top fixedly connected with the baffle of pressing plate, the baffle is located the right above through cavity top and will through cavity top completely cover. Through being equipped with the through cavity and air -cooled component, again cooperation baffle to the block of cold air, make air -cooled component can control cold air flow through the top surface of upper layer material to be welded, thereby can carry out the cooling to upper layer material to be welded, so even if the upper layer material to be welded transmittance reduces and leads to too much absorption laser heat and produces high temperature, this organic glass welding jig can also take away the heat of the upper layer material to be welded of poor transmittance in time and avoids its being burned or deformed, thereby effectively expands the application range of laser plastic welding process.

Description

Technical Field

[0001] This utility model relates to the field of laser plastic hot melt welding fixture technology, and in particular to an organic glass fixture with an embedded air blowing channel. Background Technology

[0002] Laser plastic welding involves using a near-infrared laser beam (wavelength 1µm) to penetrate an upper translucent material, which is then absorbed by a lower light-absorbing material. The two materials are then brought into close contact under the clamping force of a welding fixture. As the laser energy is absorbed by the lower material, the temperature at the joint rises rapidly, and the clamping force of the welding fixture causes the two materials to bond tightly together.

[0003] Therefore, the effect of laser plastic welding process is directly affected by the light transmittance of the upper transparent material and the rationality of the welding fixture design. When the light transmittance of the upper layer is high, the laser heat will fully penetrate the upper material and be absorbed by the lower material, resulting in high welding quality. However, if the light transmittance of the upper material is low, the laser transmittance is poor, and some of the laser energy may be absorbed by the upper material, resulting in the upper material being burned / deformed and of poor quality.

[0004] In existing plastic welding processes, laser plastic welding technology is not chosen if the light transmittance of the upper material is poor. This severely limits the application range of the high-efficiency laser plastic welding technology.

[0005] To solve the above problems, there is an urgent need for an acrylic fixture with an embedded air blowing channel. Utility Model Content

[0006] The purpose of this invention is to provide an organic glass fixture with an embedded air blowing channel to solve the problem mentioned in the background art: when existing welding fixtures clamp two materials to be welded and use laser plastic welding technology for welding, if the light transmittance of the upper material is poor, the upper material will be burned or deformed, thus severely limiting the application scope of the organic plastic welding process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an organic glass fixture with an embedded air blowing channel, comprising an organic glass pressure plate, wherein a cavity is provided at the top center of the pressure plate, the bottom end of the cavity penetrates the bottom wall of the pressure plate, a baffle is fixedly connected to the top of the pressure plate, the baffle is located directly above the top of the cavity and completely covers the top of the cavity, and an air cooling component is provided inside the pressure plate;

[0008] The air-cooling assembly includes two transverse air holes symmetrically opened on the left and right sides of the pressure plate. The two transverse air holes have their adjacent ends penetrating the left and right inner walls of the cavity, respectively. The left end of the transverse air hole on the left side and the right end of the transverse air hole on the right side are respectively connected to a first intake solenoid valve and a first suction solenoid valve. The intake end of the first intake solenoid valve and the outlet end of the first suction solenoid valve are respectively connected to a first intake pump and a first suction pump.

[0009] Preferably, an embedded block is inserted into the cavity, with gaps between the left and right sides of the embedded block and the left and right inner walls of the cavity. The cavity has a stepped structure and is provided with a first recessed platform. The embedded block has a stepped structure and is provided with a first protrusion. The first protrusion abuts against the inner bottom wall of the first recessed platform. The advantage of this arrangement is that, through the gaps between the left and right sides of the embedded block and the left and right inner walls of the cavity, and in conjunction with the first suction pump and the right-side transverse air hole, cooling air is drawn away. This allows the cooling air blown out by the left-side transverse air hole to flow fully through the top wall of the upper layer of material to be welded, thereby improving the cooling effect of the cooling air on the upper layer of material to be welded. This effectively improves the welding effect on the upper layer of material to be welded with poor light transmittance and expands the application range of laser plastic welding technology.

[0010] Preferably, the air-cooling assembly further includes two longitudinal air holes symmetrically formed on the front and rear sides of the pressure plate. The ends of the two longitudinal air holes approaching each other penetrate the front and rear inner walls of the cavity. The rear end of the longitudinal air hole on the rear side and the front end of the longitudinal air hole on the front side are respectively connected to a second intake solenoid valve and a second suction solenoid valve. The second intake solenoid valve and the second suction solenoid valve are respectively connected to a second intake pump and a second suction pump. A gap is left between the front and rear sides of the embedded block and the front and rear inner walls of the cavity. The first intake solenoid valve and the first suction solenoid valve open or close synchronously, and the second intake solenoid valve and the second suction solenoid valve open or close synchronously. The first and second intake solenoid valves are alternately opened or closed. The advantage of this configuration is that by alternately opening or closing the first and second intake solenoid valves, the cooling gas blown in by the first and second intake pumps can flow from the left side to the right side and from the rear side to the front side of the upper layer of material to be welded, respectively. This allows the cooling air to cool the upper layer of material to be welded more evenly, preventing deformation of the upper layer of material to be welded due to insufficient cooling uniformity in different areas when the upper layer of material to be welded is cooled by the cooling gas, and further improving the welding effect on plastic materials.

[0011] Preferably, the cavity further includes a second recessed platform located below the first recessed platform. A gap is left between the bottom surface of the embedded block and the inner wall of the second recessed platform. The advantage of this arrangement is that the downward flow speed of the cooling gas can be reduced by the obstruction of the second recessed platform, thereby preventing the cooling gas from directly and rapidly impacting the top surface of the upper layer of material to be welded and being bounced upwards. This ensures that the cooling gas flows smoothly and evenly across the entire top surface of the upper layer of material to be welded, ensuring the cooling effect and uniformity of the upper layer of material to be welded.

[0012] Preferably, the embedded block is also connected to an auxiliary heat dissipation component. The auxiliary heat dissipation component is used to alternately control the gas flow direction in the air gap between the inner sidewall of the cavity and the outer sidewall of the embedded block. The advantage of this setting is that the cooling gas flows alternately and orderly along different directions over the top surface of the upper layer of material to be welded, which further improves the cooling effect and cooling uniformity of the upper layer of material to be welded, thereby effectively improving the welding effect of laser plastic welding process on plastic materials with poor light transmittance.

[0013] Preferably, the auxiliary heat dissipation assembly includes four sets of electric push rods fixedly connected in a rectangular shape inside the embedded block. Two longitudinal partitions are symmetrically and movably inserted into the bottom of the embedded block, and the tops of the two longitudinal partitions are respectively fixedly connected to the output ends of the left and right sets of electric push rods. Two transverse partitions are symmetrically and movably inserted into the bottom of the embedded block, and the tops of the two transverse partitions are respectively fixedly connected to the output ends of the front and rear sets of electric push rods. The advantage of this arrangement is that by alternately activating the left and right sets of electric push rods or the front and rear sets of electric push rods, the two longitudinal partitions or the two transverse partitions can be alternately pushed downwards and pressed tightly against the top surface of the upper layer of material to be welded. In conjunction with the alternate opening of the first intake solenoid valve and the second intake solenoid valve, the cooling gas can flow smoothly and quickly from left to right or from back to front across the top surface of the upper layer of material to be welded, thereby improving the cooling efficiency and uniformity of the upper layer of material to be welded.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] 1. In this utility model, by setting a through cavity and an air-cooling component, and with the baffle blocking the cold air, the air-cooling component can control the flow of cold air through the top surface of the upper layer of material to be welded, thereby cooling the upper layer of material to be welded. Thus, even if the light transmittance of the upper layer of material to be welded decreases, resulting in excessive absorption of laser heat and high temperature, the plexiglass welding fixture can promptly remove the heat from the upper layer of material to be welded with poor light transmittance, thus preventing it from being burned or deformed, thereby effectively expanding the application range of laser plastic welding technology.

[0016] 2. In this utility model, the second concave platform reduces the downward flow speed of the cooling gas by blocking it, thereby preventing the cooling gas from directly and rapidly impacting the top surface of the upper layer of the material to be welded and being bounced upwards. This ensures that the cooling gas flows smoothly over the entire top surface of the upper layer of the material to be welded, ensuring the cooling effect and uniformity of the upper layer of the material to be welded. 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 exploded structure of this utility model;

[0019] Figure 2 This is a partial perspective view of the structure of this utility model;

[0020] Figure 3 This is a partial perspective view of the present invention.

[0021] Figure 4 This is a schematic diagram of the embedded block in this utility model;

[0022] Figure 5 This is a front sectional view of the present invention.

[0023] In the diagram: 1. Baffle; 2. Embedded block; 21. First boss; 3. Pressure plate; 31. Through cavity; 311. First recess; 312. Second recess; 5. Material to be welded; 51. Upper layer material to be welded; 52. Lower layer material to be welded; 6. Air-cooling assembly; 61. Transverse air hole; 62. First intake solenoid valve; 63. First suction solenoid valve; 64. Longitudinal air hole; 65. Second intake solenoid valve; 66. Second suction solenoid valve; 7. Auxiliary heat dissipation assembly; 71. Longitudinal partition; 72. Transverse partition. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Please refer to Figures 1-5An acrylic fixture with an embedded air blowing channel is shown, including an acrylic pressure plate 3. A cavity 31 is opened at the top center of the pressure plate 3. The bottom end of the cavity 31 penetrates the bottom wall of the pressure plate 3. A baffle 1 is fixedly connected to the top of the pressure plate 3. The baffle 1 is located directly above the top of the cavity 31 and completely covers the top of the cavity 31. An air cooling component 6 is provided inside the pressure plate 3.

[0026] The material to be welded 5 includes an upper material to be welded 51 and a lower material to be welded 52. The top surface of the upper material to be welded 51 is pressed against the bottom surface of the pressure plate 3 and located directly below the cavity 31. The upper material to be welded 51 blocks the bottom end of the cavity 31. The welding position of the top surface of the lower material to be welded 52 is pressed against the welding position of the bottom surface of the upper material to be welded 51.

[0027] The air-cooling assembly 6 includes two transverse air holes 61 symmetrically opened on the left and right sides of the pressure plate 3. The two transverse air holes 61 have their close ends penetrating the left and right inner walls of the cavity 31, respectively. The left end of the transverse air hole 61 on the left side and the right end of the transverse air hole 61 on the right side are respectively connected to the first intake solenoid valve 62 and the first suction solenoid valve 63. The intake end of the first intake solenoid valve 62 and the outlet end of the first suction solenoid valve 63 are respectively connected to the first intake pump and the first suction pump.

[0028] refer to Figure 2 , Figure 4 and Figure 5 An embedded block 2 is inserted into the cavity 31. There is a gap between the left and right sides of the embedded block 2 and the left and right inner walls of the cavity 31. The cavity 31 has a stepped structure and is provided with a first recess 311. The embedded block 2 has a stepped structure and is provided with a first protrusion 21. The first protrusion 21 is tightly abutted against the inner bottom wall of the first recess 311.

[0029] Specifically, by using the gaps between the left and right sides of the embedded block 2 and the left and right inner walls of the cavity 31, and in conjunction with the first suction pump and the right transverse air hole 61, the cooling air is drawn away. This allows the cooling air blown out by the left transverse air hole 61 to flow fully through the top wall of the upper layer of material to be welded 51, thereby improving the cooling effect of the cooling air on the upper layer of material to be welded 51, effectively improving the welding effect on the upper layer of material to be welded 51 with poor light transmittance, and expanding the application range of laser plastic welding technology.

[0030] refer to Figure 2 , Figure 3 and Figure 5The air-cooling component 6 also includes two longitudinal air holes 64 symmetrically opened on the front and rear sides of the pressure plate 3. The ends of the two longitudinal air holes 64 that are close to each other pass through the front and rear inner walls of the cavity 31 respectively. The rear end of the longitudinal air hole 64 located on the rear side and the front end of the longitudinal air hole 64 located on the front side are respectively connected to the second intake solenoid valve 65 and the second suction solenoid valve 66. The second intake solenoid valve 65 and the second suction solenoid valve 66 are respectively connected to the second intake pump and the second suction pump. There is a gap between the front and rear sides of the embedded block 2 and the front and rear inner walls of the cavity 31. The first intake solenoid valve 62 and the first suction solenoid valve 63 open or close synchronously, the second intake solenoid valve 65 and the second suction solenoid valve 66 open or close synchronously, and the first intake solenoid valve 62 and the second intake solenoid valve 65 open or close alternately.

[0031] Specifically, by alternately opening or closing the first intake solenoid valve 62 and the second intake solenoid valve 65, the cooling gas blown in by the first intake pump and the second intake pump can flow from the left side to the right side of the upper layer material to be welded 51 and from the rear side to the front side of the upper layer material to be welded 51, respectively. In this way, the cooling air can cool the upper layer material to be welded 51 more evenly, and avoid deformation of the upper layer material to be welded 51 due to insufficient cooling uniformity in different areas when the upper layer material to be welded 51 is cooled by the cooling gas, thereby further improving the welding effect on plastic materials.

[0032] refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The cavity 31 also includes a second recess 312 located on the lower side of the first recess 311, and a gap is left between the bottom surface of the inner block 2 and the inner wall of the second recess 312.

[0033] Specifically, the blocking effect of the second concave platform 312 reduces the downward flow speed of the cooling gas, thereby preventing the cooling gas from directly and rapidly impacting the top surface of the upper material to be welded 51 and being bounced upwards. This ensures that the cooling gas flows smoothly over the entire top surface of the upper material to be welded 51, ensuring the cooling effect and uniformity of the upper material to be welded 51.

[0034] refer to Figure 4 An auxiliary heat dissipation component 7 is also connected to the embedded block 2. The auxiliary heat dissipation component 7 is used to alternately control the gas flow direction in the air gap between the inner wall of the cavity 31 and the outer wall of the embedded block 2.

[0035] Specifically, this allows the cooling gas to flow alternately and orderly along different directions over the top surface of the upper layer of material to be welded 51, further improving the cooling effect and uniformity of the upper layer of material to be welded 51, thereby effectively improving the welding effect of laser plastic welding process on plastic materials with poor light transmittance.

[0036] refer to Figure 4 The auxiliary heat dissipation component 7 includes four sets of electric push rods that are fixedly connected in a rectangular shape inside the embedded block 2. Two longitudinal partitions 71 are symmetrically and movably inserted into the bottom of the embedded block 2. The tops of the two longitudinal partitions 71 are fixedly connected to the output ends of the left and right sets of electric push rods, respectively. Two transverse partitions 72 are symmetrically and movably inserted into the bottom of the embedded block 2. The tops of the two transverse partitions 72 are fixedly connected to the output ends of the front and rear sets of electric push rods, respectively.

[0037] Specifically, by alternately activating the left and right sets of electric push rods or the front and rear sets of electric push rods, the two longitudinal partitions 71 or the two transverse partitions 72 can be alternately pushed downwards and pressed tightly against the top surface of the upper layer of material to be welded 51. In conjunction with the alternate opening of the first intake solenoid valve 62 and the second intake solenoid valve 65, the cooling gas can flow smoothly and quickly from left to right or from back to front across the top surface of the upper layer of material to be welded 51, thereby improving the cooling efficiency and uniformity of the upper layer of material to be welded 51.

[0038] Working principle: Install baffle 1 and embedded block 2 on pressure plate 3, then fix pressure plate 3 to pressure device, then place the lower layer of material to be welded 52 on the worktable and below pressure plate 3, then press the welding position of the bottom surface of the upper layer of material to be welded 51 against the welding position of the top surface of the lower layer of material to be welded 52, then start pressure device to push pressure plate 3 downward until the upper layer of material to be welded 51 and the lower layer of material to be welded 52 are pressed together.

[0039] Next, the laser is activated to irradiate the upper layer material 51 and the lower layer material 52 to be welded. The laser will pass through the light-transmitting upper layer material 51 and be absorbed by the lower layer material 52. As a result, the welding position on the top surface of the lower layer material 52 will heat up until it melts. At the same time, the temperature will be conducted to the welding position on the bottom surface of the upper layer material 51 so that the welding position will also melt. Then the laser is turned off. After the welding position cools and solidifies, the upper layer material 51 and the lower layer material 52 will be firmly welded together.

[0040] During the welding process, the left and right sets of electric push rods or the front and rear sets of electric push rods are activated alternately. This allows the two longitudinal partitions 71 or the two transverse partitions 72 to be moved downwards and pressed tightly against the top surface of the upper material to be welded 51. In conjunction with the alternating opening of the first intake solenoid valve 62 and the second intake solenoid valve 65, the cooling gas can flow smoothly and quickly from left to right or from back to front across the top surface of the upper material to be welded 51, thereby improving the cooling efficiency and uniformity of the upper material to be welded 51, and thus improving the welding quality.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 acrylic fixture with an embedded air blowing channel, comprising an acrylic pressure plate (3), characterized in that: The pressure plate (3) has a cavity (31) at the top center. The bottom end of the cavity (31) penetrates the bottom wall of the pressure plate (3). A baffle (1) is fixedly connected to the top of the pressure plate (3). The baffle (1) is located directly above the top of the cavity (31) and completely covers the top of the cavity (31). An air-cooling component (6) is provided inside the pressure plate (3). The air-cooling assembly (6) includes two transverse air holes (61) symmetrically opened on the left and right sides of the pressure plate (3). The two transverse air holes (61) are close to each other and penetrate the left and right inner walls of the cavity (31). The left end of the transverse air hole (61) on the left side and the right end of the transverse air hole (61) on the right side are respectively connected to a first intake solenoid valve (62) and a first suction solenoid valve (63). The intake end of the first intake solenoid valve (62) and the outlet end of the first suction solenoid valve (63) are respectively connected to a first intake pump and a first suction pump.

2. The acrylic fixture with an embedded air blowing channel according to claim 1, characterized in that: An insert block (2) is inserted into the cavity (31). There is a gap between the left and right sides of the insert block (2) and the left and right inner walls of the cavity (31). The cavity (31) has a stepped structure and is provided with a first recess (311). The insert block (2) has a stepped structure and is provided with a first protrusion (21). The first protrusion (21) is tightly against the inner bottom wall of the first recess (311).

3. The acrylic fixture with an embedded air blowing channel according to claim 2, characterized in that: The air-cooling assembly (6) also includes two longitudinal air holes (64) symmetrically opened on the front and rear sides of the pressure plate (3). The two longitudinal air holes (64) are close to each other and penetrate the front and rear inner walls of the cavity (31). The rear end of the longitudinal air hole (64) on the rear side and the front end of the longitudinal air hole (64) on the front side are respectively connected to the second intake solenoid valve (65) and the second suction solenoid valve (66). The second intake solenoid valve (65) and the second suction solenoid valve (66) are respectively connected to the second intake pump and the second suction pump. There is a gap between the front and rear sides of the embedded block (2) and the front and rear inner walls of the cavity (31). The first intake solenoid valve (62) and the first suction solenoid valve (63) open or close synchronously. The second intake solenoid valve (65) and the second suction solenoid valve (66) open or close synchronously. The first intake solenoid valve (62) and the second intake solenoid valve (65) open or close alternately.

4. The acrylic fixture with an embedded air blowing channel according to claim 3, characterized in that: The cavity (31) also includes a second recess (312) located on the lower side of the first recess (311), and a gap is left between the bottom surface of the insert (2) and the inner wall of the second recess (312).

5. The acrylic fixture with an embedded air blowing channel according to claim 4, characterized in that: An auxiliary heat dissipation component (7) is also connected to the embedded block (2). The auxiliary heat dissipation component (7) is used to alternately control the gas flow direction in the air gap between the inner wall of the cavity (31) and the outer wall of the embedded block (2).

6. The acrylic fixture with an embedded air blowing channel according to claim 5, characterized in that: The auxiliary heat dissipation component (7) includes four sets of electric push rods fixedly connected in a rectangle inside the embedded block (2). Two longitudinal partitions (71) are symmetrically inserted into the bottom of the embedded block (2). The tops of the two longitudinal partitions (71) are fixedly connected to the output ends of the left and right sets of electric push rods, respectively. Two transverse partitions (72) are symmetrically inserted into the bottom of the embedded block (2). The tops of the two transverse partitions (72) are fixedly connected to the output ends of the front and rear sets of electric push rods, respectively.

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