Universal copper nut fuse machine

Abstract

The utility model discloses a universal copper nut hot melting machine which comprises an operation table, a vibration feeding disc, a hot melting nut machine, a jig positioning plate and a plastic workpiece, the jig positioning plate is fixedly arranged in the middle of the operation table, and the plastic workpiece is placed on the jig positioning plate; a protective plate with three faces enclosed is arranged on the operation table, the area enclosed by the protective plate is a hot melting operation space, the hot melting nut machine is erected in the hot melting operation space, a vibration feeding disc is arranged above the hot melting nut machine, the vibration feeding disc feeds materials to the hot melting nut machine in a vibration mode, and copper nuts are conveyed into the hot melting nut machine. After a hot pressing execution mechanism in the hot melting nut machine heats the copper nut, the copper nut is moved to the position above the plastic workpiece implanting position to fall down, and the hot pressing execution mechanism can pressurize the falling copper nut, so that the copper nut melts plastic and is implanted into the plastic workpiece; the fuse machine has the characteristics of being stable in operation, high in processing efficiency, labor-saving and high in safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of copper nut inlaying, and in particular relates to a universal copper nut hot-melting machine. Background Art

[0002] Plastic shells are used in the shells of various industrial products, such as laptops, keyboards, and shells of various types of electronic products. Since the shell needs to be connected to the internal parts, and the surface of the shell must ensure aesthetics and airtightness, the inside of the plastic shell is usually set with fasteners by embedding copper nuts. There are several ways to embed copper nuts into plastic parts, such as mold forming pre-embedding, hot melting, ultrasonic embedding, and cold pressing. The mold forming pre-embedding process is to put the copper nut into the mold for one-piece injection molding before injection molding, but due to the different shrinkage coefficients of the nut and the plastic, it is easy to produce residual stress, low precision and low efficiency; the ultrasonic and cold pressing methods apply too much pressure on the copper nut, which is easy to damage the structure of the nut and affect the physical properties of the nut; the hot melting process is to heat the copper nut to a certain temperature to soften the plastic, and then slowly press it into the plastic body. This method produces less internal stress, and the torsional force effect of the nut is also very good, so hot melting embedding is the most common and most common embedding method. The traditional hot melt implantation process is generally operated by a manual electric soldering iron. Operators are prone to burns, inadequate hot melt, and leakage during the processing, which makes the quality of the finished product unstable, the processing efficiency is low, and the operation safety cannot be guaranteed. At present, although there are hot melt equipment that can automatically process on the market, it also relies on manual cooperation and cannot automatically perform hot melt processing. Therefore, it is necessary to improve the existing process and improve the processing efficiency. Utility Model Content

[0003] In view of the above problems and technical requirements, the utility model provides a universal copper nut hot melt machine. The hot melt machine can be positioned by a fixture, and can automatically load, discharge and hot press. It has the characteristics of stable operation, high processing efficiency, labor saving and high safety.

[0004] The technical scheme of the utility model is as follows: a universal copper nut hot-melt machine, comprising an operating table, a vibrating feeding tray, a hot-melt nut machine, a jig positioning plate and a plastic workpiece, wherein the jig positioning plate is fixedly arranged in the middle of the operating table, and the plastic workpiece is placed on the jig positioning plate; a guard plate surrounded by three sides is provided on the operating table, and the area surrounded by the guard plate is a hot-melt operation space, and the hot-melt nut machine is mounted in the hot-melt operation space, and a vibrating feeding tray is provided above the hot-melt nut machine, and the vibrating feeding tray vibrates and feeds the hot-melt nut machine to convey the copper nuts to the hot-melt nut machine, and the hot-pressing actuator in the hot-melt nut machine can heat the copper nuts and then move the copper nuts to the top of the implantation position of the plastic workpiece and drop them, and the hot-pressing actuator can pressurize the copper nuts after they fall, so that the copper nuts melt the plastic and are implanted into the plastic workpiece.

[0005] Further, the hot-melt nut machine includes a Y-axis bracket, an X-axis bracket, a Z-axis bracket, and a hot pressing actuator. Two symmetric Y-axis brackets are respectively arranged on the left and right sides of the operation table. Y-axis rails are provided on the two Y-axis brackets. The X-axis bracket is slidably connected to the Y-axis rails, and a Y-axis lead screw module for driving the sliding of the X-axis bracket is provided on one Y-axis bracket; an X-axis slide rail and an X-axis lead screw module are provided on the front side of the X-axis bracket. The Z-axis bracket is connected to both the X-axis slide rail and the X-axis lead screw module at the same time. A Z-axis slide rail and a Z-axis lead screw module are provided on the Z-axis bracket. The hot pressing actuator is connected to both the Z-axis slide rail and the Z-axis lead screw module at the same time, and the hot pressing actuator can move freely along the X-axis, Y-axis, and Z-axis.

[0006] Further, the hot pressing actuator includes a fixed rear plate, a horizontal bracket, a nut heating combination block, a nut feeding component, and a nut initial pressing positioning shaft. The fixed rear plate is connected to the Z-axis slide rail. The upper end of the fixed rear plate is connected to a pressing cylinder through a fastener. A vertical slide rail is provided on the fixed rear plate. The telescopic end of the pressing cylinder is connected to a clamping block, and the clamping block vertically clamps the nut initial pressing positioning shaft. The bottom of the clamping block is connected to the vertical slide rail through a slider; the bottom of the fixed rear plate is connected to a horizontal bracket. A hollow groove is provided on the horizontal bracket. The nut heating combination block is fixedly connected to the bottom of the horizontal bracket. A hot pressing positioning tube and a vibrating plate feeding tube are provided on the upper surface of the nut heating combination block, and a blanking tube is provided on the lower surface. Among them, the positions of the hot pressing positioning tube and the blanking tube correspond to each other and are vertically penetrated. The lower end of the nut initial pressing positioning shaft extends into the hot pressing positioning tube; the nut feeding component is arranged at the end of the horizontal bracket, and the nut feeding component horizontally pushes the copper nut falling into the nut heating combination block from the vibrating plate feeding tube into the blanking tube.

[0007] Further, the nut heating combination block includes an upper heating block and a lower heating block that are stacked and fixedly connected. A feeding groove is provided on the joint surface of the lower heating block and the upper heating block. The feeding groove is horizontally arranged. The hot pressing positioning tube, the vibrating plate feeding tube, and the blanking tube are all provided with through holes vertically leading to the feeding groove. Both the upper heating block and the lower heating block can heat the copper nut.

[0008] Further, the nut feeding component includes a feeding cylinder, a stabilizing frame, and a feeding cross bar. The feeding cross bar is correspondingly inserted into the feeding groove. A positioning through hole is provided on the feeding cross bar. The end of the feeding cross bar is connected to a vertical stabilizing frame. A feeding cylinder is provided on the upper surface of the horizontal bracket, and a horizontal slide rail is provided on the lower surface. The telescopic end of the feeding cylinder is connected to the stabilizing frame. A horizontal rod is provided in the middle of the stabilizing frame, and the horizontal rod is connected to the horizontal slide rail through a slider; the feeding cylinder drives the feeding cross bar to push the material horizontally through the stabilizing frame, and pushes the copper nut falling from the vibrating plate feeding tube along the feeding groove into the blanking tube.

[0009] Furthermore, an arched bracket is provided on the operating table. A vibrating feeding tray is provided at the top of the arched bracket. The vibrating feeding tray is connected to the vibrating disk feeding pipe through a feeding pipeline. The copper nut workpieces to be fed are loaded in the vibrating feeding tray.

[0010] Furthermore, the nut initial pressing positioning shaft is a metal shaft part. The diameter of the nut initial pressing positioning shaft is smaller than the minimum pipe diameter of the blanking pipe. The nut initial pressing positioning shaft can pass through the hot pressing positioning pipe and the blanking pipe to perform the pressing operation on the copper nut on the plastic workpiece. When the nut initial pressing positioning shaft is in the non-pressed state, its end extends into and stays in the upper heating block. The nut initial pressing positioning shaft is also heated all the time in the initial state. When the nut initial pressing positioning shaft presses the material downward, its end can continuously heat the copper nut, so that the copper nut can accelerate the time of melting the plastic, and the hot pressing efficiency is higher.

[0011] Furthermore, opposite safety light grids are provided on the guard plates on both sides of the operating table. The safety light grid can prevent people from accidentally touching the running machine during the hot melting process and protect personal safety.

[0012] The beneficial effects of the present utility model are as follows: 1) This hot melting machine can perform operations such as automatic feeding of copper nuts, automatic positioning and blanking, and automatic pressing and implanting of copper nuts. The whole process does not require manual participation, is highly automated, greatly saves labor, improves processing efficiency, can avoid safety accidents such as burns caused by manual misoperation, and ensures the personal safety of operators; 2) The heating temperature and pressing force of the copper nuts are kept consistent. On the premise of stable temperature and stable pressure, the implanting depth and implanting angle of the copper nuts are both stably controllable. Therefore, the finished product quality is stable, the qualified rate is high, and the processing quality is effectively improved; 3) This equipment can process different products by replacing the fixture positioning plate, realizing the sharing of multiple products. It can also replace the hot pressing positioning pipes, vibrating disk feeding pipes and blanking pipes with different pipe diameters to implant copper nuts of different sizes, with high utilization rate and strong versatility. Description of the Drawings

[0013] Figure 1 It is the overall structure diagram of the general-purpose copper nut hot melting machine of the present utility model;

[0014] Figure 2 It is the structure diagram of the hot melting nut machine in the present utility model;

[0015] Figure 3 It is the structure diagram of the Z-axis bracket and the hot pressing actuator in the present utility model;

[0016] Figure 4 It is the structure diagram of the hot pressing actuator in the present utility model;

[0017] Figure 5 It is the structure diagram of the nut heating combined block and the nut pushing component in the present utility model;

[0018] Figure 6 Internal structure diagram of the nut heating combination block in the utility model

[0019] In the figure, the markings are: hot melt nut machine 1, hot pressing actuator 2, fixed rear plate 21, pressing cylinder 211, vertical slide rail 212, clamping block 213, horizontal bracket 22, hollow groove 221, nut heating combination block 3, upper heating block 31, lower heating block 32, material pushing groove 321, hot pressing positioning tube 33, vibrating disk feeding tube 34, blanking tube 35, nut material pushing assembly 4, material pushing cylinder 41, stabilizing frame 42, horizontal rod 421, material pushing cross bar 43, positioning through hole 431, horizontal slide rail 44, nut initial pressing positioning shaft 5, Y-axis bracket 6, Y-axis track 61, Y-axis lead screw module 62, X-axis bracket 7, X-axis track 71, X-axis lead screw module 72, Z-axis bracket 8, Z-axis track 81, Z-axis lead screw module 82, operating table 9, guard plate 91, safety grating 911, arched bracket 92, vibrating feeding tray 921, fixture positioning plate 93, plastic workpiece 931. Specific embodiments

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] As Figures 1-6 Shown is a general-purpose copper nut hot melt machine of the utility model, including an operating table 9, a vibrating feeding tray 921, a hot melt nut machine 1, a fixture positioning plate 93 and a plastic workpiece 931. The fixture positioning plate 93 is fixedly arranged in the middle of the operating table 9, and the plastic workpiece 931 is placed on the fixture positioning plate 93. The operating table 9 is provided with a three-sided enclosing guard plate 91, and the enclosed area of the guard plate 91 is a hot melt operation space. Opposite safety gratings 911 are provided on the two side guard plates 91 of the operating table 9. An arched bracket 92 is provided on the operating table 9, and a vibrating feeding tray 921 is provided at the top of the arched bracket 92.

[0022] The hot melt nut machine 1 is erected in the hot melt operation space. A vibrating feeding tray 921 is arranged above the hot melt nut machine 1, and the vibrating feeding tray 921 vibrates and feeds materials to the hot melt nut machine 1. The hot melt nut machine 1 includes a Y-axis bracket 6, an X-axis bracket 7, a Z-axis bracket 8 and a hot pressing actuator 2. Two symmetric Y-axis brackets 6 are respectively arranged on the left and right sides of the operating table 9. Y-axis tracks 61 are provided on the two Y-axis brackets 6. The X-axis bracket 7 is slidably connected to the Y-axis track 71. A Y-axis lead screw module 62 for driving the X-axis bracket 7 to slide is provided on one Y-axis bracket 6. An X-axis slide rail 71 and an X-axis lead screw module 72 are provided on the front side of the X-axis bracket 7. The Z-axis bracket 8 is simultaneously connected to the X-axis slide rail 71 and the X-axis lead screw module 72. A Z-axis slide rail 81 and a Z-axis lead screw module 82 are provided on the Z-axis bracket 8. The hot pressing actuator 2 is simultaneously connected to the Z-axis slide rail 81 and the Z-axis lead screw module 82, and the hot pressing actuator 2 can move freely along the X-axis, Y-axis and Z-axis.

[0023] The vibrating feeding tray 921 conveys the copper nuts to the hot-melt nut machine 1. After the copper nuts are heated by the hot-pressing actuator 2 in the hot-melt nut machine 1, the copper nuts are moved above the implanting position of the plastic workpiece 931 and dropped. The hot-pressing actuator 2 can press the dropped copper nuts, causing the copper nuts to melt the plastic and implant into the plastic workpiece 931.

[0024] The hot-pressing actuator 2 includes a fixed rear plate 21, a horizontal bracket 22, a nut heating combination block 3, a nut pushing component 4, and a nut initial pressing and positioning shaft 5. The fixed rear plate 21 is connected to the Z-axis slide rail 81. The upper end of the fixed rear plate 21 is connected to the pressing cylinder 211 through a fastener. A vertical slide rail 212 is provided on the fixed rear plate 21. The telescopic end of the pressing cylinder 211 is connected to the clamping block 213. The clamping block 213 vertically clamps the nut initial pressing and positioning shaft 5. The bottom of the clamping block 213 is connected to the vertical slide rail 212 through a slider. The bottom of the fixed rear plate 21 is connected to a horizontal bracket 22. A hollow groove 221 is provided on the horizontal bracket 22. The bottom of the horizontal bracket 22 is fixedly connected to the nut heating combination block 3. The upper surface of the nut heating combination block 3 is provided with a hot-pressing positioning tube 33 and a vibrating disk feeding tube 34, and the lower surface is provided with a blanking tube 35. Among them, the positions of the hot-pressing positioning tube 33 and the blanking tube 35 correspond to each other and are vertically penetrated.

[0025] The nut heating combination block 3 includes an upper heating block 31 and a lower heating block 32 that are stacked and fixedly connected. A pushing groove 321 is provided on the joint surface of the lower heating block 32 and the upper heating block 31. The pushing groove 321 is horizontally arranged. The hot-pressing positioning tube 33, the vibrating disk feeding tube 34, and the blanking tube 35 are all provided with through holes vertically leading to the pushing groove 321. Both the upper heating block 31 and the lower heating block 32 can heat the copper nuts. The nut pushing component 4 includes a pushing cylinder 41, a stabilizing frame 42, and a pushing cross bar 43. The pushing cross bar 43 is correspondingly inserted into the pushing groove 321. A positioning through hole 431 is provided on the pushing cross bar 43. The end of the pushing cross bar 43 is connected to a vertical stabilizing frame 42. The upper surface of the horizontal bracket 22 is provided with a pushing cylinder 41, and the lower surface is provided with a horizontal slide rail 44. The telescopic end of the pushing cylinder 41 is connected to the stabilizing frame. A horizontal rod 421 is provided in the middle of the stabilizing frame 42. The horizontal rod 421 is connected to the horizontal slide rail 44 through a slider. The pushing cylinder 41 drives the pushing cross bar 43 to push the material horizontally through the stabilizing frame 42, and pushes the copper nuts dropped from the vibrating disk feeding tube 34 along the pushing groove 321 into the blanking tube 35. The vibrating feeding tray 921 is connected to the vibrating disk feeding tube 34 through a feeding pipeline. The vibrating feeding tray 921 contains copper nut workpieces to be fed.

[0026] The lower end of the nut initial pressing positioning shaft 5 extends into the hot pressing positioning tube 33; the nut feeding assembly 4 is arranged at the end of the horizontal bracket 22, and the nut feeding assembly 4 horizontally pushes the copper nuts falling from the vibrating disk feeding pipe 34 into the nut heating combined block 3 into the blanking pipe 35. Specifically, the nut initial pressing positioning shaft 5 is a metal shaft part, and the diameter of the nut initial pressing positioning shaft 5 is smaller than the minimum pipe diameter of the blanking pipe 35. The nut initial pressing positioning shaft 5 can pass through the hot pressing positioning tube 33 and the blanking pipe 35 to perform the pressing operation on the copper nuts on the plastic workpiece 931. When the nut initial pressing positioning shaft 5 is in the non-pressed state, its end extends into and stays in the upper heating block 31.

[0027] The working process of the present utility model: Place the plastic workpiece 931 on the fixture positioning plate 93, and the fixture positioning plate 93 firmly grasps and positions the plastic workpiece 931 to keep the plastic workpiece 931 in a stable state; the hot pressing execution mechanism 2 moves along the X-axis, Y-axis, and Z-axis to automatically find the hot melting hole positions on the plastic workpiece 931. After the automatic positioning is completed, the blanking pipe 35 moves downwards to align with the hole positions, and the bottom port of the blanking pipe 35 is close to the hole positions; during the above process, the vibrating feeding tray 921 continuously vibrates to automatically feed the vibrating disk feeding pipe 34, and the copper nuts fall into the positioning through hole 431 of the pushing cross bar 43 through the vibrating disk feeding pipe 34. The copper nuts are preheated by the nut heating combined block 3. When the blanking pipe 35 is in place, the pushing cylinder 41 retracts, and the pushing cross bar 43 pushes forward to align the positioning through hole 431 carrying the copper nuts with the upper port of the blanking pipe 35. The copper nuts fall through the blanking pipe 35 into the hole positions of the plastic workpiece 931. Then, the fixed rear plate 21 moves up along the Z-axis to move the blanking pipe 35 upward by a certain distance. The pressing cylinder 211 drives the nut initial pressing positioning shaft 5 to move downward through the positioning through hole 431 and the blanking pipe 35 to continuously heat and press the copper nuts falling on the hole positions. The copper nuts melt the plastic around the hole positions and simultaneously sink downward into the plastic under the action of pressure. When the upper end of the copper nuts is flush with the plastic surface, the nut initial pressing positioning shaft 5 retracts, and the pushing cross bar 43 resets to complete a hot melting operation.

[0028] The above is only several preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes and substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. Universal copper nut hot melt machine, characterized by: It includes an operating table, a vibrating loading tray, a hot melt nut machine, a jig positioning plate and a plastic workpiece. The jig positioning plate is fixedly arranged in the middle of the operating table, and the plastic workpiece is placed on the jig positioning plate. The operating table is provided with a guard plate surrounded by three sides, and the area surrounded by the guard plate is a hot melt operating space. The hot melt nut machine is mounted in the hot melt operating space. A vibrating loading tray is provided above the hot melt nut machine. The vibrating loading tray vibrates and feeds the hot melt nut machine to convey the copper nuts to the hot melt nut machine. The hot pressing actuator in the hot melt nut machine can heat the copper nut and then move the copper nut to the top of the plastic workpiece implantation position and drop it. The hot pressing actuator can pressurize the copper nut after it falls, so that the copper nut melts the plastic and is implanted into the plastic workpiece.

2. The universal copper nut hot melt machine according to claim 1 is characterized in that: The hot melt nut machine includes a Y-axis bracket, an X-axis bracket, a Z-axis bracket and a hot pressing actuator. Two symmetrical Y-axis brackets are respectively arranged on the left and right sides of the operating table. The two Y-axis brackets are provided with Y-axis tracks. The X-axis bracket is slidably connected to the Y-axis track. One Y-axis bracket is provided with a Y-axis screw module that drives the X-axis bracket to slide; the front side of the X-axis bracket is provided with an X-axis slide rail and an X-axis screw module, and the Z-axis bracket is connected to the X-axis slide rail and the X-axis screw module at the same time. The Z-axis bracket is provided with a Z-axis slide rail and a Z-axis screw module. The hot pressing actuator is connected to the Z-axis slide rail and the Z-axis screw module at the same time, and the hot pressing actuator can move freely along the X-axis, Y-axis and Z-axis.

3. The universal copper nut hot melt machine according to claim 2 is characterized in that: The hot pressing actuator includes a fixed rear plate, a horizontal bracket, a nut heating assembly block, a nut pushing assembly and a nut initial pressure positioning shaft. The fixed rear plate is connected to the Z-axis slide rail, and the upper end of the fixed rear plate is connected to the pressing cylinder through a fastener. A vertical slide rail is provided on the fixed rear plate, and the telescopic end of the pressing cylinder is connected to the clamping block. The clamping block vertically clamps the nut initial pressure positioning shaft, and the bottom of the clamping block is connected to the vertical slide rail through a slider; the bottom of the fixed rear plate is connected to a horizontal bracket, and a hollow groove is provided on the horizontal bracket. The bottom of the horizontal bracket is fixedly connected to the nut heating assembly block, and a hot pressing positioning tube and a vibration disk feeding tube are provided on the upper surface of the nut heating assembly block, and a blanking tube is provided on the lower surface, wherein the hot pressing positioning tube and the blanking tube correspond in position and are vertically connected, and the lower end of the nut initial pressure positioning shaft extends into the hot pressing positioning tube; the nut pushing assembly is arranged at the end of the horizontal bracket, and the nut pushing assembly pushes the copper nut that falls from the vibration disk feeding tube into the nut heating assembly block horizontally into the blanking tube.

4. The universal copper nut hot melt machine according to claim 3 is characterized in that: The nut heating combination block includes an upper heating block and a lower heating block that are stacked and fixedly connected. The joint surface of the lower heating block and the upper heating block is provided with a push groove, and the push groove is arranged horizontally. The hot pressing positioning tube, the vibration plate feeding tube and the drop tube are all provided with through holes vertically leading to the push groove. The upper heating block and the lower heating block can both heat the copper nuts.

5. The universal copper nut hot melt machine according to claim 4 is characterized in that: The nut pushing assembly includes a pushing cylinder, a stabilizing frame and a pushing cross bar. The pushing cross bar is inserted into the pushing trough accordingly. A positioning through hole is provided on the pushing cross bar. The end of the pushing cross bar is connected to the vertical stabilizing frame. A pushing cylinder is provided on the upper surface of the horizontal bracket, and a horizontal slide rail is provided on the lower surface. The telescopic end of the pushing cylinder is connected to the stabilizing frame. A horizontal rod is provided in the middle of the stabilizing frame, and the horizontal rod is connected to the horizontal slide rail through a slider. The pushing cylinder drives the pushing cross bar to push the material horizontally through the stabilizing frame, and pushes the copper nut dropped in the vibrating plate feeding pipe along the pushing trough into the dropping pipe.

6. The universal copper nut hot melt machine according to claim 5, characterized in that: An arched bracket is arranged on the operating table, a vibrating loading tray is arranged on the top of the arched bracket, the vibrating loading tray is connected to the vibrating tray feeding pipe through a loading pipeline, and the vibrating loading tray carries copper nut workpieces to be loaded.

7. The universal copper nut hot melt machine according to claim 6, characterized in that: The nut initial pressure positioning shaft is a metal shaft, and the diameter of the nut initial pressure positioning shaft is smaller than the minimum tube diameter of the blanking tube. The nut initial pressure positioning shaft can pass through the hot pressing positioning tube and the blanking tube to perform a copper nut pressing operation on a plastic workpiece. When the nut initial pressure positioning shaft is not pressed down, the end of the nut initial pressure positioning shaft extends into and stays in the upper heating block.

8. The universal copper nut hot melt machine according to claim 7, characterized in that: Relative safety gratings are arranged on the guard plates on both sides of the operating table.

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