Automatic hot melt sealing device for air hole of relay housing and assembling machine thereof

Abstract

The application discloses a kind of automatic hot melt sealing devices of relay shell air hole and its assembling machine, including hot melt platform, material lifting mechanism, clamping limiting mechanism and hot melt mechanism hot melt platform is along linear direction arrangement, and at least two hot melt stations are provided with interval;Hot melt platform is provided with material groove extending along linear direction;Material lifting mechanism includes at least two groups, at least two groups of material lifting mechanism are correspondingly arranged at least two hot melt stations;Clamping limiting mechanism includes at least two groups, at least two groups of clamping limiting mechanism are correspondingly arranged at least two hot melt stations;Hot melt mechanism includes at least two groups, at least two groups of hot melt mechanism are correspondingly arranged at least two hot melt stations.The application realizes relay shell air hole batch automatic sealing, while guaranteeing the continuous feeding of relay, through side clamping flexible push and automatic top, realizes the automatic positioning of relay, effectively guarantees the position accuracy and surface flatness of relay in hot melt process, improves sealing precision and sealing yield.

Description

Technical Field

[0001] This invention relates to the field of automatic relay assembly, and in particular to an automatic heat-sealing device for the air holes of a relay housing and its assembly machine. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the input quantity changes to a specified value. It has an interactive relationship between the control system (input circuit) and the controlled system (output circuit); it is commonly used in automated control circuits, and is essentially an "automatic switch" that uses a small current to control a large current; it plays roles in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] In the later stages of relay assembly, it is necessary to seal the vents on the relay housing. In the incoming material state, the relay housing has an upward-protruding boss structure near the vents. During the sealing process, the boss needs to be melted into a liquid material and then flow into the vent to block the vent. After solidification, the vent is sealed. Based on the above relay sealing process requirements, it is necessary to design an automatic heat-melting sealing device for the vents of the relay housing. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing an automatic hot-melt sealing device and assembly machine for relay housing pores, which enables batch automatic sealing of relay housing pores, ensures continuous feeding of relays, and achieves automatic positioning of relays through side clamping flexible pushing and automatic upward pushing, effectively ensuring the positional accuracy and surface flatness of relays during the hot-melt process, and improving sealing accuracy and sealing yield.

[0005] The technical solution adopted in this invention is as follows: An automatic heat-sealing device for relay housing vents, used for automatically sealing relay housing vents, includes a heat-sealing platform, a material-ejecting mechanism, a clamping and limiting mechanism, and a heat-sealing mechanism. The heat-sealing platform is arranged along a straight line and has at least two heat-sealing stations spaced apart. A material groove extending along a straight line is provided on the heat-sealing platform, and at least two relays are placed in the material groove, with the relays moving linearly along the material groove. The material-ejecting mechanism includes at least two sets, and these at least two sets of material-ejecting mechanisms are correspondingly arranged at at least two heat-sealing stations. The relay is positioned below the hot-melt station. The ejector mechanism pushes the relay in the material trough upwards, making its top surface flush. The clamping and limiting mechanism includes at least two sets, which are correspondingly arranged at at least two hot-melt stations and extend into the material trough from the side to clamp the relay in the positioning trough. The hot-melt mechanism includes at least two sets, which are correspondingly arranged at at least two hot-melt stations and located above the hot-melt station. The hot-melt mechanism moves downwards and abuts against the air hole protrusion on the top surface of the relay to hot-melt the protrusion and seal the air hole.

[0006] Preferably, the hot-melt platform includes pillars, support platforms, and partitions. The pillars include at least two pillars arranged vertically with parallel spacing. The support platform is horizontally positioned on top of the pillars, and has a material trough extending in a straight line within it. The material trough has openings at both ends to allow relays to be introduced and discharged, and an opening at the top. The partitions include at least two partitions, corresponding to at least two hot-melt stations. The partitions horizontally cover the top opening of the material trough, and the material trough has an inwardly recessed circular groove. A hot-melt hole is formed at the bottom of the circular groove, penetrating the partition vertically. The side of the support platform has at least two limiting holes, corresponding to at least two hot-melt stations, and penetrating the side wall of the support platform to communicate with the material trough. The bottom of the support platform has at least two lifting holes, corresponding to at least two hot-melt stations, and penetrating the bottom of the support platform to communicate with the material trough.

[0007] Preferably, the material lifting mechanism includes a lifting support, a lifting assembly, and a lifting rod. The lifting support is horizontally positioned below the support platform, and a horizontal groove is formed inside the lifting support along a direction perpendicular to the support platform. The lifting assembly is positioned on the side of the lifting support, outputting linear power in the horizontal direction and converting the horizontal power into vertical power through an inclined pushing surface. The lifting rod is vertically positioned on the lifting assembly, which drives the lifting rod to move up and down, causing the lifting rod to pass through the lifting insertion hole from bottom to top and extend into the material trough, pushing the relay upwards and pressing it against the upper partition.

[0008] Preferably, the material-lifting mechanism further includes a support, which is vertically mounted on the lifting support and erected above the horizontal slide groove. The support has a vertically extending vertical slide groove inside. A through groove is provided at the bottom of the support, and the through groove passes through the side wall of the support.

[0009] Preferably, the lifting assembly includes a lifting cylinder, a lifting slide, a lowering slide, and a return spring. The lifting cylinder is located on the side of the lifting support, with its output end corresponding to a horizontal groove. The lifting slide is horizontally slidably embedded within the horizontal slide and connected to the output end of the lifting cylinder. Driven by the lifting cylinder, it slides back and forth linearly through a through groove in the horizontal groove. The outer top surface of the lifting slide has a downwardly extending inclined push surface. The lowering slide has a T-shaped cross-section and is slidably embedded in a vertical groove of the support. The bottom surface of the lowering slide has an inclined push surface, which contacts the lifting slide below. When the lifting slide slides horizontally, the inclined push surface pushes the lowering slide upwards. The return spring is vertically positioned, with one end connected to the lowering slide and the other end connected to the lifting support. In its natural state, the spring force of the return spring tends to pull the lowering slide downwards. The push rod is vertically positioned at the top of the lowering slide.

[0010] Preferably, the hot-melt mechanism includes a UVW platform, a support plate, slide rails, and a hot-melt assembly. The UVW platform is horizontally arranged on the side of the hot-melt platform; the support plate is vertically arranged on the UVW platform and adjusted to a horizontal position by the UVW platform; the slide rails include two rails, which are respectively arranged on the two side walls of the support plate and extend vertically; the hot-melt assembly is connected to the support plate, with its hot-melt end facing downwards.

[0011] Preferably, the hot melt assembly includes a connecting plate, a bracket, a hot melt base, and a hot melt lamp, wherein the connecting plate is slidably connected to a slide rail on one side of the bracket; the bracket has a U-shaped frame structure, with both ends of the bracket connected to the connecting plate and extending through the bracket to the other side of the bracket; the hot melt base is horizontally arranged on the bracket and located on the other side of the bracket; the hot melt lamp is arranged on the hot melt base and faces downward.

[0012] Preferably, the hot melt assembly further includes a hot melt cylinder, a hot melt slide, a support rod, and a hot melt needle. The hot melt cylinder is located on the other side of the support plate with its output end facing downwards. The hot melt slide is slidably connected to a slide rail on the other side of the support plate. One end of the support rod is connected to the hot melt slide, and the other end of the support rod extends horizontally to below the hot melt lamp. The hot melt needle is vertically located at the bottom of the other end of the support rod and is heated by the hot melt lamp.

[0013] Preferably, the clamping and limiting mechanism includes a clamping support, a lateral adjustment component, and a clamping and limiting component. The clamping support is horizontally disposed on the side of the hot-melt mechanism. The lateral adjustment component is disposed on the clamping support and outputs power in a direction perpendicular to the hot-melt platform. The clamping and limiting component is disposed on the lateral adjustment component and extends into the material groove to clamp and limit the relay in the material groove.

[0014] Preferably, the lateral adjustment assembly includes a horizontal thrust cylinder and a clamping slide, wherein the clamping slide is slidably mounted on a clamping support along a direction perpendicular to the hot-melt platform; the horizontal thrust cylinder is mounted on the clamping support and connected to the clamping slide, used to drive the clamping slide closer to or further away from the hot-melt platform; the clamping limiting assembly includes a clamping block, a flexible top block, a clamping cylinder, and a clamping block, wherein the clamping block is located near the outer end of the clamping slide and extends horizontally to the outer side of the clamping slide, the clamping block is an L-shaped block with a clamping groove on its inner side; the clamping groove... The bottom of the trough is provided with a clamping slide groove; the flexible top block is slidably inserted into the clamping slide groove and connected to the bottom of the clamping slide groove I through a clamping spring, the clamping spring pushing the flexible top block outward; the clamping cylinder is set on the clamping slide and the output end is set towards the clamping block; the clamping block is connected to the output end of the clamping cylinder and is driven by the clamping cylinder to move closer to or away from the clamping block; the clamping slide drives the clamping block, the flexible top block and the clamping block to pass through the limiting insertion hole and extend into the material trough, the clamping block and the clamping block clamp and fix the relay from both sides, and the flexible top block abuts against the side of the relay.

[0015] An assembly machine including an automatic heat-sealing device for relay housing vents.

[0016] The beneficial effects of this invention are as follows: This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing an automatic hot-melt sealing device and assembly machine for relay housing pores. This device achieves batch automatic sealing of relay housing pores, ensuring continuous relay feeding while automatically positioning the relays through side clamping flexible pushing and automatic upward pushing. This effectively guarantees the positional accuracy and surface flatness of the relays during the hot-melt process, improving sealing accuracy and sealing yield.

[0017] This invention aims to provide a process for the downstream of an automated relay assembly line, applicable to the field of automatic relay assembly. Its function is to achieve automated, continuous, and batch heat-sealing of relay housing vents, changing the traditional single-time heat-sealing of relay housing vents to batch continuous heat-sealing adapted to automated production line assembly, effectively improving the sealing efficiency of relay vents. Specifically, this invention uses a horizontally arranged hot-melt platform as the relay-bearing and movement-guiding structure during the hot-melt process. The platform has a material trough extending in a straight line, with openings at both ends to allow for the introduction or removal of relays. Driven by an external pushing mechanism, the relays move forward one by one in the straight line within the trough, and are guided and limited by the trough to achieve continuous and batch feeding of the relays. Multiple hot-melt stations are spaced apart along the trough's extension direction to simultaneously hot-melt seal the pores of multiple relay housings. Furthermore, each hot-melt station has a partition, horizontally covering the top opening of the trough. The partition has an inwardly recessed circular groove with a hot-melt hole at the bottom. During the hot-melt process, the partition protects the top surface of the relay to prevent damage to other parts of the relay top surface. Simultaneously, the hot-melt hole aligns with the protrusion on the relay top surface to be hot-melted, ensuring that the hot-melt mechanism only performs hot-melt sealing at the protrusion location. In addition, each hot-melt station is equipped with a top-feeding mechanism below it, a clamping and limiting mechanism on the side of the hot-melt station, and a hot-melt mechanism above it. The relays that move to the hot-melt station are clamped and fixed from the left and right sides by the clamping and limiting mechanisms and flexibly pushed against the relays from the outer wall. At the same time, the top-feeding mechanism pushes the relays from below, so that the top surface of the relays abuts against the upper partition to ensure the flatness consistency of the top surface of the relays during the hot-melt process.

[0018] Furthermore, the material-lifting mechanism of the present invention uses a lifting support horizontally positioned below the support platform as the bearing structure. A horizontal groove is provided within the lifting support along a direction perpendicular to the material trough. A lifting slide is provided within the horizontal groove, and the lifting slide is driven by a lifting cylinder to slide back and forth linearly within the horizontal groove. A vertical stand is vertically positioned on the lifting support, straddling the horizontal groove. The stand has a vertical groove extending in a vertical direction within it, and a through slot horizontally penetrating the stand is opened at its top to allow the lifting slide to pass through during sliding. A key feature is that an inclined section is opened on the top surface of the outer end of the lifting slide. The downward-extending inclined push surface is correspondingly provided on the bottom surface of the lifting slide seat embedded in the vertical slide groove. When the lifting slide seat moves outward, the inclined push surface drives the lifting slide seat to move upward. This method of using the inclined push surface realizes the conversion of horizontal power into vertical power, which can effectively reduce the power stroke, lower the equipment height, and realize the effective use of installation space. At the same time, the inclined push surface outputs power and also serves as a supporting inclined surface for the lifting slide seat, ensuring that the lifting slide seat stably and accurately drives the top rod above it to move upward, completing the jacking of the relay and ensuring the stability of the jacking.

[0019] Furthermore, to ensure the relay slides smoothly within the material trough, the internal dimensions of the trough are larger than the dimensions of the relay. Since high positional accuracy is required for the relay during the subsequent hot-melt process, and to ensure the relay's protrusion accurately aligns with the hot-melt hole on the partition and maintains its precise position, this invention employs a clamping and limiting mechanism that extends into the material trough from the side through the limiting insertion hole of the support. A clamping cylinder drives a clamping block closer to the clamping block, holding the sliding relay below the partition and clamping and positioning it from both sides. Simultaneously, when the clamping block extends into the material trough, a flexible top block located within its clamping groove pushes the relay against the rear wall of the trough from the front side, thus achieving left-right and front-back clamping and positioning of the relay. The flexible top block is movably connected to the clamping block via a clamping spring, achieving flexible contact with the relay surface during positioning and reducing damage to the relay surface during the pushing process.

[0020] Furthermore, the hot-melt mechanism of the present invention heats the hot-melt needle below with a hot-melt lamp. The hot-melt needle passes downward through the hot-melt hole on the partition and contacts the boss on the top surface of the relay. The boss is heated and melted, and then covers and seals the air hole of the relay, completing the sealing of the air hole of the relay housing. The hot-melt mechanism uses a UVW platform as a support structure and is adjusted in position along the X-axis and Y-axis in the horizontal plane. A support plate is vertically provided on the UVW platform, and slide rails are vertically provided on both sides of the support plate. The hot-melt lamp is supported by a hot-melt base and a U-shaped bracket, and is slidably connected to the slide rail on one side by a connecting plate. The bracket is connected to the hot-melt slide base. A support rod is vertically connected to the side wall of the hot-melt slide base, and a hot-melt needle is vertically provided at the bottom of the outer end of the support rod. The hot-melt cylinder drives the hot-melt slide base to synchronously drive the support and support rod to move up and down, so that the hot-melt lamp above and the hot-melt needle below move down synchronously towards the relay below to complete the hot-melt process. Attached Figure Description

[0021] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0022] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0023] Figure 3 This is the third three-dimensional structural schematic diagram of the present invention.

[0024] Figure 4 This is a three-dimensional structural diagram of the present invention after the components are hidden.

[0025] Figure 5 This is one of the three-dimensional structural schematic diagrams of the hot melt platform of the present invention.

[0026] Figure 6 This is the second three-dimensional structural schematic diagram of the hot melt platform of the present invention.

[0027] Figure 7 This is the third three-dimensional structural schematic diagram of the hot melt platform of the present invention.

[0028] Figure 8 This is one of the three-dimensional structural schematic diagrams of the top material mechanism of the present invention.

[0029] Figure 9 This is the second three-dimensional structural schematic diagram of the top material mechanism of the present invention.

[0030] Figure 10 This is the third three-dimensional structural schematic diagram of the top material mechanism of the present invention.

[0031] Figure 11 This is the fourth three-dimensional structural schematic diagram of the top material mechanism of the present invention.

[0032] Figure 12 This is one of the three-dimensional structural schematic diagrams of the clamping and limiting mechanism and the hot-melting mechanism of the present invention.

[0033] Figure 13 This is the second three-dimensional structural schematic diagram of the clamping and limiting mechanism and the hot-melting mechanism of the present invention.

[0034] Figure 14 This is the third three-dimensional structural diagram of the clamping and limiting mechanism and the hot-melting mechanism of the present invention.

[0035] Figure 15 This is the fourth three-dimensional structural schematic diagram of the clamping and limiting mechanism and the hot-melting mechanism of the present invention.

[0036] Figure 16 This is one of the three-dimensional structural schematic diagrams of the hot-melting mechanism of the present invention.

[0037] Figure 17 This is the second three-dimensional structural schematic diagram of the hot-melting mechanism of the present invention.

[0038] Figure 18 This is one of the three-dimensional structural schematic diagrams of the clamping and limiting mechanism of the present invention.

[0039] Figure 19 This is the second three-dimensional structural schematic diagram of the clamping and limiting mechanism of the present invention.

[0040] Figure 20 This is a schematic diagram of the component structure of the clamping and limiting mechanism of the present invention.

[0041] Figure 21 for Figure 20 A bottom view.

[0042] In the picture: 1. Hot melt platform; 2. Ejector mechanism; 3. Clamping and limiting mechanism; 4. Hot melt mechanism; 5. Relay; 11. Support column; 12. Support platform; 13. Partition plate; A. Material trough; B. Hot melt hole; C. Limiting insertion hole; D. Lifting insertion hole; 21. Lifting support; 22. Stand; 23. Lifting cylinder; 24. Lifting slide; 25. Lifting slide; 26. Return spring; 27. Push rod; E. Horizontal slide; F. Through groove; G. Inclined push surface; 41. UVW platform; 42. Support plate; 43. Slide rail; 44. Connecting plate; 45. Bracket; 46. Hot melt base; 47. Hot melt lamp; 48. Hot melt cylinder; 49. Hot melt slide; 410. Support rod; 411. Hot melt needle; 31. Clamping support; 32. Horizontal push cylinder; 33. Clamping slide; 34. Clamping block; 35. Flexible top block; 36. Clamping cylinder; 37. Clamping block; 38. Clamping spring; H. Clamping groove; I. Clamping slide groove. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Example 1: As Figures 1 to 4As shown, this invention proposes an automatic heat-sealing device for relay housing vents, used for automatically sealing relay housing vents. It includes a heat-sealing platform 1, a material-ejecting mechanism 2, a clamping and limiting mechanism 3, and a heat-sealing mechanism 4. The heat-sealing platform 1 is arranged along a straight line and has at least two heat-sealing stations spaced apart. A material groove A extending along a straight line is provided on the heat-sealing platform 1, and at least two relays 0 are placed in the material groove A, with the relays 0 moving linearly along the direction of the material groove A. The material-ejecting mechanism 2 includes at least two sets, with each of the at least two sets of material-ejecting mechanisms 2 correspondingly positioned at the at least two heat-sealing stations. The material ejector mechanism 2 pushes the relay 0 in the material trough A upwards, making its top surface flush with the material trough A. The clamping and limiting mechanism 3 includes at least two sets, which are correspondingly arranged at at least two hot-melt stations and extend into the material trough A from the side to clamp and position the relay 0 in the material trough A. The hot-melt mechanism 4 includes at least two sets, which are correspondingly arranged at at least two hot-melt stations and located above the hot-melt station. The hot-melt mechanism 4 moves downwards and abuts against the air hole protrusion on the top surface of the relay 0 to hot-melt the protrusion to seal the air hole.

[0047] This invention designs an automatic batch sealing device and assembly machine for relay housing vents. While ensuring continuous relay feeding, it achieves automatic relay positioning through side clamping flexible pushing and automatic upward pushing, effectively guaranteeing the relay's positional accuracy and surface flatness during the hot-melt process, thus improving sealing precision and yield. This invention aims to provide a downstream process in automated relay assembly lines, enabling automated, continuous batch hot-melt sealing of relay housing vents. It transforms the traditional single-pass hot-melt sealing of relay housing vents into continuous batch hot-melt sealing adapted to automated production lines, effectively improving the sealing efficiency of relay vents.

[0048] Example 2: Figures 5 to 7As shown in the figure, as an embodiment of the present invention, the hot melt platform 1 of the present invention includes a support column 11, a support platform 12, and a partition plate 13. The support column 11 includes at least two columns, which are arranged vertically in parallel intervals. The support platform 12 is horizontally arranged on top of the support column 11, and a material trough A extending in a straight direction is provided inside the support platform 12. The material trough A has openings at both ends to allow the introduction and exit of relays 0, and an opening at the top. The partition plate 13 includes at least two pieces, which are correspondingly arranged at at least two hot melt stations. 3. A horizontal cover is installed at the top opening of the material trough A. The material trough A has an inwardly recessed circular groove. A hot-melt hole B is opened at the bottom of the circular groove. The hot-melt hole B passes through the partition plate 13 from top to bottom. The side of the support 12 has at least two limiting holes C. The at least two limiting holes C are set for at least two hot-melt stations and pass through the side wall of the support 12 to communicate with the material trough A. The bottom of the support 12 has at least two lifting holes D. The at least two lifting holes D are set for at least two hot-melt stations and pass through the bottom of the support 12 to communicate with the material trough A.

[0049] This invention uses a horizontally positioned hot-melt platform as the relay-bearing and movement-guiding structure during the hot-melt process. The platform has a material trough extending in a straight line, with openings at both ends to allow relays to be introduced or removed. Driven by an external pushing mechanism, the relays move forward sequentially in a straight line within the trough, and are guided and limited by the trough to achieve continuous and batch feeding of the relays. Multiple hot-melt stations are spaced apart along the trough's extension direction to simultaneously hot-melt seal the vents in the housings of multiple relays. Furthermore, each hot-melt station has a partition, horizontally covering the top opening of the trough. The partition has an inwardly recessed circular groove with a hot-melt hole at the bottom. During the hot-melt process, the partition protects the top surface of the relay to prevent damage to other parts of the top surface. Simultaneously, the hot-melt hole aligns with the protrusions on the top surface of the relay to be hot-melted, ensuring that the hot-melt mechanism only performs hot-melt sealing at the protrusion locations. In addition, each hot-melt station is equipped with a top-feeding mechanism below it, a clamping and limiting mechanism on the side of the hot-melt station, and a hot-melt mechanism above it. The relays that move to the hot-melt station are clamped and fixed from the left and right sides by the clamping and limiting mechanisms and flexibly pushed against the relays from the outer wall. At the same time, the top-feeding mechanism pushes the relays from below, so that the top surface of the relays abuts against the upper partition to ensure the flatness consistency of the top surface of the relays during the hot-melt process.

[0050] Example 3: As Figures 8 to 11As shown in the figure, as an embodiment of the present invention, the material feeding mechanism 2 of the present invention includes a lifting support 21, a lifting assembly, and a lifting rod 27. The lifting support 21 is horizontally arranged below the support platform 12, and a horizontal sliding groove E is formed in the lifting support 21 along the direction perpendicular to the support platform 12. The lifting assembly is arranged on the side of the lifting support 21. The lifting assembly outputs linear power in the horizontal direction and converts the horizontal power into vertical power through the inclined pushing surface G. The lifting rod 27 is vertically arranged on the lifting assembly. The lifting assembly drives the lifting rod 27 to move up and down, so that the lifting rod 27 passes through the lifting insertion hole D from bottom to top and extends into the material groove A, pushing the relay 0 upward and pressing it against the upper partition plate 13.

[0051] The top material mechanism 2 also includes a stand 22, which is vertically mounted on the lifting support 21 and erected above the horizontal slide E. The stand 22 has a vertically extending vertical slide inside. The bottom of the stand 22 has a through groove F that penetrates the side wall of the stand 22.

[0052] The lifting assembly includes a lifting cylinder 23, a lifting slide 24, a lowering slide 25, and a return spring 26. The lifting cylinder 23 is located on the side of the lifting support 21, with its output end corresponding to the horizontal slide groove E. The lifting slide 24 is horizontally slidably embedded in the horizontal slide groove E and connected to the output end of the lifting cylinder 23. Driven by the lifting cylinder 23, it slides back and forth linearly through the through groove F in the horizontal slide groove E. The outer top surface of the lifting slide 24 has an inclined downward-extending inclined push surface G. The lowering slide 25 has a T-shaped cross-section. The seat 25 is slidably embedded in the vertical groove of the stand 22. The bottom surface of the lifting slide 25 is provided with an inclined push surface G. The lifting slide 25 contacts the lower lifting slide 24 through the inclined push surface G. When the lifting slide 24 slides horizontally, it pushes the lifting slide 25 upward through the inclined push surface G. The return spring 26 is vertically set. One end of the return spring 26 is connected to the lifting slide 25, and the other end is connected to the lifting support 21. In its natural state, the elastic force of the return spring 26 tends to pull the lifting slide 25 downward. The top rod 27 is vertically set on the top of the lifting slide 25.

[0053] The material-lifting mechanism of this invention uses a lifting support horizontally positioned below a support platform as its load-bearing structure. A horizontal groove perpendicular to the material trough is provided within the lifting support, and a lifting slide is positioned within the horizontal groove. The lifting slide is driven by a lifting cylinder to slide back and forth linearly within the horizontal groove. A vertical support is vertically mounted on the lifting support, straddling the horizontal groove. The support has a vertical groove extending vertically within it, and a through-slot horizontally penetrating the support at its top to allow the lifting slide to pass through during sliding. A key feature is that an inclined downward-extending groove is formed on the top surface of the outer end of the lifting slide. The inclined push surface is embedded in the vertical slide groove. The bottom surface of the lifting slide is correspondingly provided with an inclined push surface. When the lifting slide moves outward, the inclined push surface drives the lifting slide to move upward. This method of using an inclined push surface realizes the conversion of horizontal power into vertical power, which can effectively reduce the power stroke, reduce the height of the equipment, and realize the effective use of installation space. At the same time, the inclined push surface outputs power and also serves as a support inclined surface for the lifting slide, ensuring that the lifting slide can stably and accurately drive the top rod above it to move upward, complete the jacking of the relay, and ensure the stability of the jacking.

[0054] Example 4: Figures 12 to 21 As shown in the figure, as an embodiment of the present invention, the hot melt mechanism 4 of the present invention includes a UVW platform 41, a support plate 42, a slide rail 43, and a hot melt assembly. The UVW platform 41 is horizontally arranged on the side of the hot melt platform 1; the support plate 42 is vertically arranged on the UVW platform 41 and its position in the horizontal plane is adjusted by the UVW platform 41; the slide rail 43 includes two slide rails, which are respectively arranged on the two side walls of the support plate 42 and extend vertically respectively; the hot melt assembly is connected to the support plate 42, and its hot melt end is arranged downward.

[0055] The hot melt assembly includes a connecting plate 44, a bracket 45, a hot melt base 46, and a hot melt lamp 47. The connecting plate 44 is slidably connected to a slide rail 43 on one side of the support plate 42. The bracket 45 has a U-shaped frame structure, with both ends connected to the connecting plate 44 and extending through the support plate 42 to the other side of the support plate 42. The hot melt base 46 is horizontally arranged on the bracket 45 and located on the other side of the support plate 42. The hot melt lamp 47 is arranged on the hot melt base 46 and faces downward.

[0056] The hot melt assembly also includes a hot melt cylinder 48, a hot melt slide 49, a support rod 410, and a hot melt needle 411. The hot melt cylinder 48 is located on the other side of the support plate 42 with its output end facing downward. The hot melt slide 49 is slidably connected to a slide rail 43 on the other side of the support plate 42. One end of the support rod 410 is connected to the hot melt slide 49, and the other end of the support rod 410 extends horizontally to below the hot melt lamp 47. The hot melt needle 411 is vertically located at the bottom of the other end of the support rod 410 and is heated by the hot melt lamp 47.

[0057] The clamping and limiting mechanism 3 includes a clamping support 31, a lateral adjustment component, and a clamping and limiting component. The clamping support 31 is horizontally arranged on the side of the hot melt mechanism 4. The lateral adjustment component is arranged on the clamping support 31 and outputs power in a direction perpendicular to the hot melt platform 1. The clamping and limiting component is arranged on the lateral adjustment component and extends into the material groove A to clamp and limit the relay 0 in the material groove A.

[0058] The lateral adjustment assembly includes a horizontal thrust cylinder 32 and a clamping slide 33. The clamping slide 33 is slidably mounted on a clamping support 31 along a direction perpendicular to the hot melt platform 1. The horizontal thrust cylinder 32 is mounted on the clamping support 31 and connected to the clamping slide 33, used to drive the clamping slide 33 closer to or further away from the hot melt platform 1. The clamping limiting assembly includes a clamping block 34, a flexible top block 35, a clamping cylinder 36, and a clamping block 37. The clamping block 34 is located near the outer end of the clamping slide 33 and extends horizontally to the outer side of the clamping slide 33. The clamping block 34 is an L-shaped block with a clamping groove H on its inner side. A clamping groove H is provided in the bottom of the groove. The clamping slide 35 is slidably inserted into the clamping slide 33 and connected to the bottom of the clamping slide 33 via a clamping spring 38. The clamping spring 38 pushes the flexible top block 35 outward. The clamping cylinder 36 is mounted on the clamping slide 33 and its output end faces the clamping block 34. The clamping block 37 is connected to the output end of the clamping cylinder 36 and is driven by the clamping cylinder 36 to move closer to or away from the clamping block 34. The clamping slide 33 drives the clamping block 34, the flexible top block 35, and the clamping block 37 through the limiting insertion hole C and into the material groove A. The clamping block 34 and the clamping block 37 clamp and fix the relay 0 from both sides, and the flexible top block 35 abuts against the side of the relay 0.

[0059] Furthermore, to ensure the relay slides smoothly within the material trough, the internal dimensions of the trough are larger than the dimensions of the relay. Since high positional accuracy is required for the relay during the subsequent hot-melt process, and to ensure the relay's protrusion accurately aligns with the hot-melt hole on the partition and maintains its precise position, this invention employs a clamping and limiting mechanism that extends into the material trough from the side through the limiting insertion hole of the support. A clamping cylinder drives a clamping block closer to the clamping block, holding the sliding relay below the partition and clamping and positioning it from both sides. Simultaneously, when the clamping block extends into the material trough, a flexible top block located within its clamping groove pushes the relay against the rear wall of the trough from the front side, thus achieving left-right and front-back clamping and positioning of the relay. The flexible top block is movably connected to the clamping block via a clamping spring, achieving flexible contact with the relay surface during positioning and reducing damage to the relay surface during the pushing process.

[0060] Furthermore, the hot-melt mechanism of the present invention heats the hot-melt needle below with a hot-melt lamp. The hot-melt needle passes downward through the hot-melt hole on the partition and contacts the boss on the top surface of the relay. The boss is heated and melted, and then covers and seals the air hole of the relay, completing the sealing of the air hole of the relay housing. The hot-melt mechanism uses a UVW platform as a support structure and is adjusted in position along the X-axis and Y-axis in the horizontal plane. A support plate is vertically provided on the UVW platform, and slide rails are vertically provided on both sides of the support plate. The hot-melt lamp is supported by a hot-melt base and a U-shaped bracket, and is slidably connected to the slide rail on one side by a connecting plate. The bracket is connected to the hot-melt slide base. A support rod is vertically connected to the side wall of the hot-melt slide base, and a hot-melt needle is vertically provided at the bottom of the outer end of the support rod. The hot-melt cylinder drives the hot-melt slide base to synchronously drive the support and support rod to move up and down, so that the hot-melt lamp above and the hot-melt needle below move down synchronously towards the relay below to complete the hot-melt process.

[0061] Example 5: As another embodiment, the present invention discloses an assembly machine including an automatic hot melt sealing device for relay housing vents.

[0062] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. An automatic heat-sealing device for air holes in relay housings, used for automatically sealing air holes in relay housings, characterized in that: It includes a hot melt platform (1), a top material mechanism (2), a clamping and limiting mechanism (3), and a hot melt mechanism (4), wherein, The hot melt platform (1) is arranged in a straight line and at least two hot melt stations are provided at intervals; the hot melt platform (1) is provided with a material trough (A) extending in a straight line, and at least two relays (0) are placed in the material trough (A), and the relays (0) move in a straight line along the direction of the material trough (A); The top material mechanism (2) includes at least two sets, and the at least two sets of top material mechanisms (2) are respectively set at at least two hot melt stations and located below the hot melt stations. The top material mechanism (2) pushes the relay (0) in the material groove (A) upward so that its top surface is flush with the material groove (A). The clamping and limiting mechanism (3) includes at least two sets, and the at least two sets of clamping and limiting mechanisms (3) are respectively arranged at at least two hot melt stations and extend into the material groove (A) from the side to clamp the relay (0) in the positioning material groove (A); The hot melt mechanism (4) includes at least two sets, and the at least two sets of hot melt mechanisms (4) are respectively set at at least two hot melt stations and located above the hot melt stations. The hot melt mechanism (4) moves downward and abuts against the air hole boss on the top surface of the relay (0) to hot melt the boss to seal the air hole. The hot melt platform (1) includes a support column (11), a support platform (12), and a partition (13). The support column (11) includes at least two columns, which are arranged vertically in parallel intervals. The support platform (12) is arranged horizontally on top of the support column (11). The support platform (12) has a material trough (A) extending in a straight line. The two ends of the material trough (A) are open to allow the relay (0) to be introduced and discharged. The top of the material trough (A) is open. The partition (13) includes at least two partitions, which are arranged at at least two hot melt stations. The partitions (13) are horizontally covered over the material trough. At the top opening of (A), a circular groove is provided on the material trough (A), which is recessed inward. A hot melt hole (B) is provided at the bottom of the circular groove, and the hot melt hole (B) passes through the partition plate (13) from top to bottom. At least two limiting holes (C) are provided on the side of the support (12), and the at least two limiting holes (C) are set to correspond to at least two hot melt stations and pass through the side wall of the support (12) to communicate with the material trough (A). At least two lifting holes (D) are provided at the bottom of the support (12), and the at least two lifting holes (D) are set to correspond to at least two hot melt stations and pass through the bottom of the support (12) to communicate with the material trough (A).

2. The automatic heat-sealing device for the air vents of a relay housing according to claim 1, characterized in that: The top material mechanism (2) includes a lifting support (21), a lifting assembly, and a top rod (27). The lifting support (21) is horizontally positioned below the support platform (12), and a horizontal groove (E) is provided in the lifting support (21) along the direction perpendicular to the support platform (12). The lifting assembly is positioned on the side of the lifting support (21). The lifting assembly outputs linear power in the horizontal direction and converts the horizontal power into vertical power through the inclined push surface (G). The top rod (27) is vertically positioned on the lifting assembly. The lifting assembly drives the top rod (27) to move up and down, so that the top rod (27) passes through the lifting insertion hole (D) from bottom to top and extends into the material trough (A), pushing the relay (0) upward and pressing it against the upper partition plate (13).

3. The automatic heat-sealing device for the air vents of a relay housing according to claim 2, characterized in that: The top material mechanism (2) also includes a stand (22), which is vertically mounted on the lifting support (21) and erected above the horizontal slide (E). The stand (22) has a vertically extending vertical slide. The bottom of the stand (22) has a through groove (F) that penetrates the side wall of the stand (22).

4. The automatic heat-sealing device for the air vents of a relay housing according to claim 3, characterized in that: The lifting assembly includes a lifting cylinder (23), a lifting slide (24), a lowering slide (25), and a return spring (26). The lifting cylinder (23) is located on the side of the lifting support (21), and its output end is positioned corresponding to the horizontal slide groove (E). The lifting slide (24) is horizontally slidably embedded in the horizontal slide groove (E) and connected to the output end of the lifting cylinder (23). Driven by the lifting cylinder (23), it slides back and forth linearly through the through groove (F) in the horizontal slide groove (E). The outer top surface of the lifting slide (24) is provided with an inclined pushing surface (G) extending downwards. The cross-section of the lowering slide (25) is a T-shaped structure. (25) is slidably embedded in the vertical groove of the stand (22). The bottom surface of the lifting slide (25) is provided with an inclined push surface (G). The lifting slide (25) contacts the lower lifting slide (24) through the inclined push surface (G). When the lifting slide (24) slides horizontally, it pushes the lifting slide (25) upward through the inclined push surface (G). The reset spring (26) is vertically set. One end of the reset spring (26) is connected to the lifting slide (25), and the other end is connected to the lifting support (21). In the natural state, the elastic force of the reset spring (26) tends to pull the lifting slide (25) downward. The top rod (27) is vertically set on the top of the lifting slide (25).

5. The automatic heat-sealing device for the air vents of a relay housing according to claim 1, characterized in that: The hot melt mechanism (4) includes a UVW platform (41), a support plate (42), a slide rail (43), and a hot melt assembly. The UVW platform (41) is horizontally arranged on the side of the hot melt platform (1). The support plate (42) is vertically arranged on the UVW platform (41) and its position in the horizontal plane is adjusted by the UVW platform (41). The slide rail (43) includes two slide rails, which are respectively arranged on the two side walls of the support plate (42) and extend vertically. The hot melt assembly is connected to the support plate (42) with its hot melt end facing downward.

6. The automatic heat-sealing device for the air vents of a relay housing according to claim 5, characterized in that: The hot melt assembly includes a connecting plate (44), a bracket (45), a hot melt base (46), and a hot melt lamp (47). The connecting plate (44) is slidably connected to a slide rail (43) on one side of the support plate (42). The bracket (45) is a U-shaped frame structure, with both ends of the bracket (45) connected to the connecting plate (44) and extending through the support plate (42) to the other side of the support plate (42). The hot melt base (46) is horizontally arranged on the bracket (45) and located on the other side of the support plate (42). The hot melt lamp (47) is arranged on the hot melt base (46) and faces downward.

7. The automatic heat-sealing device for the air vents of a relay housing according to claim 6, characterized in that: The hot melt assembly also includes a hot melt cylinder (48), a hot melt slide (49), a support rod (410), and a hot melt needle (411). The hot melt cylinder (48) is located on the other side of the support plate (42) with its output end facing downward. The hot melt slide (49) is slidably connected to the slide rail (43) on the other side of the support plate (42). One end of the support rod (410) is connected to the hot melt slide (49), and the other end of the support rod (410) extends horizontally to the bottom of the hot melt lamp (47). The hot melt needle (411) is vertically located at the bottom of the other end of the support rod (410) and is heated by the hot melt lamp (47).

8. The automatic heat-sealing device for the air vents of a relay housing according to claim 1, characterized in that: The clamping and limiting mechanism (3) includes a clamping support (31), a lateral adjustment component and a clamping and limiting component. The clamping support (31) is horizontally arranged on the side of the hot melt mechanism (4). The lateral adjustment component is arranged on the clamping support (31) and outputs power in a direction perpendicular to the hot melt platform (1). The clamping and limiting component is arranged on the lateral adjustment component and extends into the material groove (A) to clamp and limit the relay (0) in the material groove (A).

9. The automatic heat-sealing device for the air vents of a relay housing according to claim 8, characterized in that: The lateral adjustment assembly includes a push cylinder (32) and a clamping slide (33), wherein the clamping slide (33) is slidably mounted on the clamping support (31) in a direction perpendicular to the hot melt platform (1); the push cylinder (32) is mounted on the clamping support (31) and connected to the clamping slide (33), and is used to drive the clamping slide (33) to move closer to or away from the hot melt platform (1); The clamping and limiting assembly includes a clamping block (34), a flexible top block (35), a clamping cylinder (36), and a clamping block (37). The clamping block (34) is located near the outer end of the clamping slide (33) and extends horizontally to the outside of the clamping slide (33). The clamping block (34) is an L-shaped block with a clamping groove (H) on its inner side. A clamping slide groove (I) is provided in the bottom of the clamping groove (H). The flexible top block (35) is slidably inserted into the clamping slide groove (I) and connected to the bottom of the clamping slide groove (I) through a clamping spring (38). The clamping spring (38) pushes outward. Flexible top block (35); The clamping cylinder (36) is set on the clamping slide (33) and the output end is set towards the clamping block (34); The clamping block (37) is connected to the output end of the clamping cylinder (36) and is driven by the clamping cylinder (36) to approach or move away from the clamping block (34); The clamping slide (33) drives the clamping block (34), flexible top block (35) and clamping block (37) to pass through the limiting insertion hole (C) and extend into the material groove (A). The clamping block (34) and clamping block (37) clamp and fix the relay (0) from both sides, and the flexible top block (35) abuts against the side of the relay (0).

10. An assembly machine comprising the automatic heat-sealing device for the air vents of the relay housing as described in claim 1.

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