Hot melting sealing equipment for processing silica gel assembly

Abstract

The utility model relates to the technical field of silica gel assembly machining equipment, and discloses hot melting sealing equipment for machining silica gel assemblies, which comprises a machining table, a support frame and a controller are arranged on the machining table, a mounting seat is arranged on the support frame in a lifting manner, and a hot melting pressing die is arranged at the bottom of the mounting seat; a heating part electrically connected to the controller is arranged in the hot melting pressing mold, the hot melting pressing mold comprises a connecting plate, a guide ring and a limiting ring, the connecting plate is connected to the bottom of the mounting base, the guide ring is matched with the plastic part, located at the bottom of the connecting plate and used for guiding the plastic part to exceed the top end of the silica gel pad to be turned inwards, and the limiting ring is located at the inner circle of the guide ring. The guide ring is arranged on the machining table and used for guiding the flanging position of the plastic part to be inserted into the annular groove in the silica gel pad, a fixed mold is arranged on the machining table, located under the hot melting pressing mold and provided with a positioning groove used for containing the plastic part, and a groove matched with the guide ring in an inserted mode is formed in the fixed mold. The silica gel assembly has the effect of improving the sealing reliability of the silica gel assembly.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of silica gel assembly processing equipment, in particular to a hot melt sealing device for processing a silica gel assembly. BACKGROUND

[0002] In modern industrial production, sealing technology plays a crucial role in ensuring product performance, prolonging service life, and ensuring safety. Hot melt sealing, as a widely used sealing method, is based on the principle of heating and softening plastic parts, then deforming and cooling them to achieve stable packaging and sealing of internal parts.

[0003] This traditional hot melt sealing process has shown significant advantages in many industrial scenarios, especially when dealing with parts with regular shapes, large volumes, and clear bending positions. It can accurately control the bending angle and position to ensure the reliability and stability of the sealing effect, and thus process product parts that meet high precision requirements, widely used in electronic equipment, automobile manufacturing, medical devices and other industries.

[0004] However, with the continuous innovation and diversification of industrial products, more complex and special requirements have been placed on sealing technology. When faced with parts with special structures, such as parts that require ring sealing, traditional hot melt sealing equipment has obvious limitations.

[0005] Reference Figure 1 and Figure 2 The processing of the ring-shaped silica gel assembly first requires placing the silica gel pad 02 inside the plastic part 01, and then using hot melt technology to melt the top end of the plastic part 01 that exceeds the silica gel pad 02, and make it inwardly flanged until it is inserted into the ring groove on the silica gel pad 02, and after cooling, the silica gel pad 02 is fixed, thus completing the production of the silica gel assembly.

[0006] In the above processing of the silica gel assembly, since the sealing structure is ring-shaped and has no obvious bendable part, the traditional hot melt sealing method relying on the bending mechanism cannot be implemented. Ring sealing requires uniform hot melt and fitting on the entire circumference, while the bending mechanism cannot meet this all-around, dead-angle-free sealing requirement, resulting in ineffective sealing of such parts, severely limiting their application range in related fields. Invention content

[0007] In order to improve the sealing reliability of the silica gel assembly, the application provides a hot melt sealing device for processing a silica gel assembly.

[0008] The hot melt sealing device for processing a silica gel assembly provided by the application adopts the following technical scheme:

[0009] The hot melt sealing equipment for processing silica gel assembly comprises a processing table, a supporting frame and a controller arranged on the processing table, a mounting seat arranged on the supporting frame in a lifting mode, a hot melt pressing die arranged at the bottom of the mounting seat, a heating element electrically connected to the controller arranged in the hot melt pressing die, the hot melt pressing die comprising a connecting plate, a guide ring and a limiting ring, the connecting plate being connected to the bottom of the mounting seat, the guide ring being arranged in cooperation with a plastic part and located at the bottom of the connecting plate and used for guiding the plastic part to be inwardly flanged at the top end of the silica gel pad, and the limiting ring being located at the inner ring of the guide ring and used for guiding the flange of the plastic part to be inserted into a ring groove on the silica gel pad, a fixed die arranged on the processing table and located directly below the hot melt pressing die and provided with a positioning groove for placing the plastic part, and a groove arranged on the fixed die and matched with the guide ring.

[0010] By adopting the above technical scheme, the plastic part with the silica gel pad placed therein is inserted into the positioning groove on the fixed die, the controller controls the heating element to heat the hot melt pressing die to an appropriate temperature, and then drives the hot melt pressing die to press downward to perform hot melt sealing on the silica gel assembly. In the process of hot melt sealing of the silica gel assembly, the guide ring is arranged in cooperation with the plastic part, which can guide the plastic part to be inwardly flanged at the top end of the silica gel pad, and the limiting ring is arranged at the inner ring of the guide ring, which can further ensure that the flange of the plastic part is accurately inserted into the ring groove on the silica gel pad, thereby realizing uniform hot melt and adhesion. The problem that the traditional bending mechanism cannot realize omnidirectional and dead angle-free sealing is solved, and the reliability and stability of sealing are improved.

[0011] Optionally, the connecting plate is provided with a connecting hole in abutment with the mounting seat, a connecting bolt is arranged in the connecting hole, a plurality of connecting holes are distributed along the circumference of the connecting plate, and the connecting holes on the connecting plate are all provided in the form of counterbores.

[0012] By adopting the above technical scheme, the multi-point connection design improves the overall rigidity and stability of the equipment, and the counterbores of the connecting holes facilitate the assembly of the connecting bolts and avoid the problem that the bolt head protrudes to affect the flatness of the equipment surface.

[0013] Optionally, the bottom end of the mounting seat is provided with a positioning column, and the connecting plate is provided with a mounting positioning hole.

[0014] By adopting the above technical scheme, the positioning column at the bottom end of the mounting seat cooperates with the mounting positioning hole on the connecting plate, so that the hot melt pressing die can be quickly and accurately positioned during installation, the problem of poor sealing caused by position deviation is avoided, and the stability and processing precision of the equipment are improved.

[0015] Optionally, the sidewall of the connecting plate is provided with a positioning edge, and the fixed die is provided with a positioning mark at a position corresponding to the positioning edge.

[0016] By adopting the above technical solution, the positioning edge on the connecting plate matches the positioning mark on the fixed mold, which allows for quick confirmation of the installation position when installing the hot melt mold, simplifying the equipment debugging process and thus improving the ease of operation and assembly efficiency.

[0017] Optionally, the bottom of the positioning groove is provided with an ejector plate, which is used to eject the heat-sealed silicone assembly out of the positioning groove, and the processing table is provided with an ejector assembly for driving the ejector plate to rise and fall.

[0018] By adopting the above technical solution, the ejector component drives the ejector plate to eject the finished product after heat-melting and sealing from the positioning groove, thereby solving the problem that the silicone assembly is difficult to remove due to the friction generated between it and the fixed mold, reducing the damage or deformation that may be caused by forceful removal, and improving production efficiency and product quality.

[0019] Optionally, the ejection assembly includes an ejection rod disposed at the bottom of the ejection plate, a rack disposed on the side wall of the ejection rod, a gear meshing with the rack, and a motor driving the gear to rotate. The ejection rod slides vertically through the mold and the processing table, and the rack is located at the bottom end of the ejection rod along its length.

[0020] By adopting the above technical solutions, the ejector rod design makes the ejection action smoother and more reliable. The meshing transmission of the rack and pinion ensures the uniform transmission of ejection force, improving ejection efficiency and accuracy. The motor, as the power source, allows for precise control of ejection speed and force, further enhancing the automation level and ease of operation of the equipment.

[0021] Optionally, the gear is an incomplete gear, an abutment ring is sleeved on the ejector rod, the abutment ring is located between the processing table and the rack, and a return spring is sleeved on the ejector rod, the return spring abutting between the abutment ring and the processing table.

[0022] By adopting the above technical solution, under the elastic action of the return spring and utilizing the rotational characteristics of the incomplete gear, the ejector rod can automatically reset after each action, ensuring that the ejector plate quickly returns to its original position after ejecting the silicone assembly, thereby improving the working efficiency and continuous operation capability of the equipment.

[0023] Optionally, the inner ring of the fixed mold is provided with a cooling cavity, the cooling cavity is arranged in a coil shape, a circulating cooling box is provided on the processing table, and a water inlet and a water outlet are provided on the side wall of the fixed mold communicating with the cooling cavity. Both the water inlet and the water outlet are connected to the circulating cooling box through water pipes.

[0024] By adopting the technical scheme, the coil-shaped design of the cooling cavity enables the cooling medium to be uniformly distributed and effectively take away the heat on the silica gel assembly, so as to not only quickly reduce the temperature of the silica gel assembly after hot melt sealing is completed, improve production efficiency, but also avoid the problems of deformation or poor sealing caused by local overheating, thereby improving the dimensional stability and sealing quality of the silica gel assembly.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The plastic part with the placed silica gel pad is inserted into the positioning groove on the fixed mold, and after the controller controls the heating part to heat the hot melt pressure mold to a suitable temperature, the hot melt pressure mold is driven to press down to hot melt seal the silica gel assembly. In the hot melt sealing process of the silica gel assembly, the guide ring is arranged in cooperation with the plastic part to guide the plastic part to turn inward beyond the top end of the silica gel pad, and the limiting ring is arranged in the inner ring of the guide ring to further ensure that the turned edge of the plastic part is accurately inserted into the ring groove on the silica gel pad, thereby realizing uniform hot melt and lamination, solving the problem that the traditional bending mechanism cannot realize omnidirectional and dead angle-free sealing, and improving the reliability and stability of sealing;

[0027] 2. The multi-point connection design improves the overall rigidity and stability of the equipment, and the counterbore of the connection hole facilitates the assembly of the connecting bolt and avoids the problem of affecting the flatness of the equipment surface due to the protrusion of the bolt head;

[0028] 3. The positioning column at the bottom end of the mounting seat cooperates with the mounting positioning hole on the connecting plate, so that the hot melt pressure mold can be quickly and accurately positioned during installation, avoiding the problem of poor sealing caused by position deviation, and improving the stability and processing precision of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a combined sectional view of the silica gel assembly before processing.

[0030] Figure 2 is a sectional view of the silica gel assembly.

[0031] Figure 3 is a schematic diagram of the overall structure of the embodiment of the present application.

[0032] Figure 4 is a schematic diagram of the overall structure of the embodiment of the present application.

[0033] Figure 5 is an exploded view of the connection relationship between the hot melt pressure mold and the mounting seat in the embodiment of the present application.

[0034] BRIEF DESCRIPTION OF DRAWINGS:

[0035] 01, plastic piece; 02, silica gel pad; 1, processing table; 2, support frame; 21, mounting seat; 211, positioning column; 212, connecting bolt; 3, controller; 4, hot melt die; 41, connecting plate; 411, mounting positioning hole; 412, positioning edge; 413, connecting hole; 42, guide ring; 43, limiting ring; 5, heating piece; 6, fixed mold; 61, positioning groove; 62, groove; 63, positioning mark; 64, cooling cavity; 65, water inlet nozzle; 66, water outlet nozzle; 7, ejection plate; 8, ejection assembly; 81, ejection rod; 811, abutting ring; 812, return spring; 82, rack; 83, gear; 84, motor; 9, circulating cooling box; 91, water pipe. DETAILED DESCRIPTION

[0036] The following description will be made in conjunction with the accompanying drawings. Figures 3-5 The application is further described in detail.

[0037] The application discloses a hot melt sealing device for processing silica gel assembly.

[0038] Referring to Figure 3 and Figure 4 , the hot melt sealing device for processing silica gel assembly comprises a processing table 1, a support frame 2 and a controller 3 are fixedly arranged on the processing table 1, a mounting seat 21 is arranged on the support frame 2 and can be raised and lowered, a hot melt die 4 is arranged at the bottom of the mounting seat 21, and a heating piece 5 is arranged in the hot melt die 4. A fixed mold 6 is fixedly arranged on the processing table 1, the fixed mold 6 is located directly below the hot melt die 4, the fixed mold 6 is provided with a positioning groove 61, an ejection plate 7 is arranged in the positioning groove 61 and can be raised and lowered, and an ejection assembly 8 is arranged on the processing table 1. The fixed mold 6 is also provided with a groove 62 which is inserted and matched with the hot melt die 4.

[0039] Referring to Figure 3 and Figure 4 , first, the plastic piece 01 on which the silica gel pad 02 is placed is inserted into the positioning groove 61 on the fixed mold 6; then, after the controller 3 controls the heating piece 5 to heat the hot melt die 4 to an appropriate temperature, the hot melt die 4 is driven to press down, and the silica gel assembly is subjected to hot melt sealing; finally, the ejection assembly 8 drives the ejection plate 7 to eject the finished product after the hot melt sealing is completed from the positioning groove 61.

[0040] Referring to Figure 3 and Figure 4 , the mounting seat 21 can move up and down on the support frame 2 through a lifting mechanism (such as an air cylinder or an electric push rod), so as to adjust the height of the hot melt die 4. In this embodiment, the air cylinder is taken as an example.

[0041] Referring to Figure 4 , the heating piece 5 in this embodiment is an electric heating wire embedded in the hot melt die 4, and the temperature of the heating piece 5 is monitored in real time by the controller 3.

[0042] Referring toFigure 3 and Figure 5 The hot melt molding 4 comprises an integral connecting plate 41, a guide ring 42 and a limiting ring 43. The connecting plate 41 is arranged at the bottom of the mounting seat 21. A positioning column 211 is fixedly arranged on the bottom wall of the mounting seat 21. An installation positioning hole 411 is arranged on the connecting plate 41. The positioning column 211 is inserted into the positioning hole. A side flat positioning edge 412 is arranged on the outer ring of the connecting plate 41. A positioning mark 63 is concavely arranged on the hot mold 6 corresponding to the position of the positioning edge 412.

[0043] Referring to Figure 3 and Figure 5 The connecting plate 41 is arranged in abutment with the mounting seat 21. A connecting hole 413 is arranged in the connecting plate 41. A connecting bolt 212 is jointly arranged in the connecting hole 413. The connecting hole 413 is distributed in the circumferential direction of the connecting plate 41. In the embodiment, two connecting holes 413 are taken as an example. The two connecting holes 413 are symmetrically arranged in the height direction of the connecting plate 41. The connecting holes 413 arranged on the connecting plate 41 are all arranged in the form of counterbores.

[0044] Referring to Figure 4 and Figure 5 The guide ring 42 is arranged at the bottom center of the connecting plate 41 in cooperation with the plastic part 01. The guide ring 42 is used for guiding the inward flanging of the plastic part 01 beyond the top end of the silica gel pad 02. The limiting ring 43 is arranged at the inner ring of the guide ring 42. The limiting ring 43 is used for guiding the flanged part of the plastic part 01 to be inserted into the ring groove on the silica gel pad 02.

[0045] Referring to Figure 3 and Figure 4 The ejection assembly 8 comprises an ejection rod 81, a rack 82, a gear 83 and a motor 84. The ejection rod 81 is vertically slidably arranged through the hot mold 6 and the processing table 1. The top end of the ejection rod 81 is fixedly arranged at the bottom of the ejection plate 7. The ejection rod 81 is fixedly sleeved with an abutting ring 811 on the rod body extending out of the processing table 1. A return spring 812 is sleeved on the ejection rod 81. The return spring 812 abuts between the abutting ring 811 and the processing table 1.

[0046] Referring to Figure 3 and Figure 4 The rack 82 is fixedly arranged on the bottom end side wall of the ejection rod 81 in the length direction of the ejection rod 81. The gear 83 in the embodiment is an incomplete gear 83. The gear 83 is rotatably engaged with the rack 82. The motor 84 is installed at the bottom of the processing table 1. The output shaft of the motor 84 is fixedly sleeved.

[0047] Referring to Figure 3 and Figure 4In order to accelerate the cooling and setting of the silica gel assembly after heat sealing, the inner ring of the mold 6 is provided with a cooling cavity 64 in the form of a coil pipe, and a circulating cooling box 9 is fixedly arranged on the processing table 1. The water inlet nozzle 65 and the water outlet nozzle 66 are installed on the side wall of the mold 6 and are connected with the circulating cooling box 9 through the water pipe 91.

[0048] The implementation principle of the hot melt sealing equipment for processing the silica gel assembly is as follows: first, the plastic part 01 with the silica gel pad 02 placed therein is inserted into the positioning groove 61 of the mold 6; then the controller 3 is started to control the electric heating wire to heat, so that the hot melt mold 4 is heated to an appropriate temperature, and then the hot melt mold 4 is driven to press down to heat melt and seal the silica gel assembly. In the process of heat melt sealing of the silica gel assembly, the guide ring 42 cooperates with the plastic part 01 to guide the inward flanging of the top end of the plastic part 01 beyond the silica gel pad 02, and the limiting ring 43 arranged in the inner circle of the guide ring 42 can further ensure that the flanged part of the plastic part 01 is accurately inserted into the ring groove on the silica gel pad 02, so as to realize uniform heat melting and lamination.

[0049] After circulating cooling and setting, the silica gel assembly is driven to move upward by the motor 84 and the incomplete gear 83, so that the ejector plate 7 can eject the finished product from the positioning groove 61 after the heat melt sealing is completed. Finally, under the elastic action of the return spring 812, the rotation characteristics of the incomplete gear 83 are utilized to automatically reset the ejector rod 81 after each action is completed, so as to ensure the rapid homing of the ejector plate 7 after ejecting the silica gel assembly,

[0050] The above are the preferred embodiments of the present application, but do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A hot-melt sealing device for processing silicone assemblies, characterized in that... The system includes a processing table (1), on which a support frame (2) and a controller (3) are provided. A mounting base (21) is raised and lowered on the support frame (2). A hot melt mold (4) is provided at the bottom of the mounting base (21), and a heating element (5) electrically connected to the controller (3) is provided inside the hot melt mold (4). The hot melt mold (4) includes a connecting plate (41), a guide ring (42), and a limiting ring (43). The connecting plate (41) is connected to the bottom of the mounting base (21), and the guide ring (42) is set in conjunction with a plastic part (01). Located at the bottom of the connecting plate (41), it is used to guide the plastic part (01) to extend beyond the top of the silicone pad (02) and turn inward. The limiting ring (43) is located at the inner ring of the guide ring (42) and is used to guide the turned-out part of the plastic part (01) to be inserted into the ring groove on the silicone pad (02). The processing table (1) is provided with a fixed mold (6). The fixed mold (6) is located directly below the hot melt mold (4) and is provided with a positioning groove (61) for placing the plastic part (01). The fixed mold (6) is provided with a groove (62) that is inserted and matched with the guide ring (42).

2. The hot melt sealing equipment for processing silicone assemblies according to claim 1, characterized in that... The connecting plate (41) and the mounting base (21) are connected by a connecting hole (413). A connecting bolt (212) is inserted into the connecting hole (413). There are multiple connecting holes (413) distributed around the circumference of the connecting plate (41), and all connecting holes (413) on the connecting plate (41) are countersunk holes.

3. The hot melt sealing equipment for processing silicone assemblies according to claim 1, characterized in that... The mounting base (21) is provided with a positioning post (211) at its bottom end, and the connecting plate (41) is provided with a mounting positioning hole (411), and the positioning post (211) is inserted into the mounting positioning hole (411).

4. The hot melt sealing equipment for processing silicone assemblies according to claim 1, characterized in that... The connecting plate (41) has a positioning edge (412) on its side wall, and the fixed mold (6) has a positioning mark (63) in the position corresponding to the positioning edge (412).

5. The hot melt sealing equipment for processing silicone assemblies according to claim 1, characterized in that... The bottom of the positioning groove (61) is provided with an ejector plate (7), which is used to eject the hot-melt sealed silicone assembly out of the positioning groove (61). The processing table (1) is provided with an ejector assembly (8) that drives the ejector plate (7) to move up and down.

6. The hot melt sealing equipment for processing silicone assemblies according to claim 5, characterized in that... The ejection assembly (8) includes an ejection rod (81) disposed at the bottom of the ejection plate (7), a rack (82) disposed on the side wall of the ejection rod (81), a gear (83) meshing with the rack (82), and a motor (84) driving the gear (83) to rotate. The ejection rod (81) slides vertically through the set mold (6) and the processing table (1), and the rack (82) is located at the bottom end of the ejection rod (81) along the length direction of the ejection rod (81).

7. A hot-melt sealing device for processing silicone assemblies according to claim 6, characterized in that... The gear (83) is an incomplete gear (83). An abutment ring (811) is sleeved on the ejector rod (81). The abutment ring (811) is located between the processing table (1) and the rack (82). A return spring (812) is sleeved on the ejector rod (81). The return spring (812) abuts between the abutment ring (811) and the processing table (1).

8. The hot melt sealing equipment for processing silicone assemblies according to claim 1, characterized in that... The fixed mold (6) has a cooling cavity (64) in the inner ring. The cooling cavity (64) is arranged in a coil shape. The processing table (1) is equipped with a circulating cooling box (9). The side wall of the fixed mold (6) is equipped with a water inlet (65) and a water outlet (66) that connect to the cooling cavity (64). The water inlet (65) and the water outlet (66) are both connected to the circulating cooling box (9) through water pipes (91).

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