Dispensing machine magnetic carrier

Abstract

The utility model discloses the point gum machine magnetic carrier of point gum machine carrier technical field, including carrier device, the upper end four corners fixed setting of carrier device has the limiting structure, and the lower extreme of carrier device is fixedly connected with the through electromagnetic board device through the connecting column, and the upper end of carrier device places the plate to be processed, and the four corners of plate to be processed are limited by the limiting structure, and the through electromagnetic board device cooperation magnetic adsorption has the magnetic fixed plate, and the magnetic fixed plate is located the upper end of plate to be processed, this device is through setting the right angle limiting block of guiding arc edge in the upper end four corners of carrier device, can to plate to be processed carry out quick accurate positioning, and the outer fixed frame of magnetic fixed plate adopts the iron material, and cooperation carrier device lower extreme through electromagnetic board device, can produce powerful magnetic attraction when electrifying, will magnetic fixed plate closely adsorb and press fit on the upper end of plate to be processed to fixed plate to be processed realizes, compared with traditional mechanical clamping fixed, and magnetic attraction fixed mode can not cause the indentation or damage to plate to be processed surface.

Description

Technical Field

[0001] This utility model belongs to the technical field of dispensing machine carriers, specifically relating to magnetic carriers for dispensing machines. Background Technology

[0002] In the production of electronic components, semiconductor packaging, PCB (printed circuit board) boards, and other products, dispensing machines are frequently used to apply glue, pot, seal, or fix workpieces. Before dispensing, the workpiece needs to be precisely positioned and firmly fixed on the work platform to ensure the accuracy of the dispensing path and the quality of the glue. Currently, there are two main methods of fixing: one is to use mechanical clamps, and the other is to use vacuum adsorption.

[0003] Currently, there are many material carriers for dispensing machines on the market. For example, a dispensing machine with multi-station clamping capability, disclosed in CN219150587U, includes a main body and a clamping assembly. The lower end of the main body is equipped with casters. The clamping assembly for fixing the wine box during use is located in the middle of the upper end of the main body. The clamping assembly includes a fixed base, a clamping ring, a pneumatic rod, a clamping pad, a rubber block, and a receiving pad. The clamping ring is installed inside the fixed base, and the pneumatic rod is fixed inside the clamping ring. The front end of the pneumatic rod is provided with a clamping pad, and a rubber block is added to the front end of the clamping pad. A receiving pad is added to the middle of the upper end of the main body.

[0004] While existing dispensing machines use mechanical clamps to secure the material carrier, the process of loading and unloading workpieces is cumbersome and inefficient, and can easily cause damage or deformation to thin workpieces. Vacuum adsorption, on the other hand, offers convenient loading and unloading, but requires extremely high flatness and airtightness of the workpiece's bottom surface. It is less effective at adsorbing workpieces with vents, uneven surfaces, or non-metallic materials, and carries the risk of insecure fixation, thus presenting certain limitations. Utility Model Content

[0005] The purpose of this invention is to provide a magnetic carrier for a dispensing machine, which solves the limitations of existing magnetic carriers for dispensing machines in terms of workpiece fixing methods mentioned in the background art. This invention fixes the workpiece by using magnetic adsorption. By utilizing the characteristics of magnetic force, the workpiece can be quickly positioned and fixed. Compared with traditional dispensing machine carriers, this device has significant advantages.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetic carrier for a dispensing machine, including a carrier device, wherein limiting structures are fixedly provided at the four corners of the upper end of the carrier device, and an electromagnetic plate device is fixedly connected to the lower end of the carrier device through a connecting column. A plate to be processed is placed on the upper end of the carrier device, and the four corners of the plate to be processed are limited by the limiting structures. The electromagnetic plate device is magnetically attracted to a magnetic fixing plate, and the magnetic fixing plate is located at the upper end of the plate to be processed.

[0007] Preferably, the magnetic fixing plate includes an outer fixing frame and a central processing frame. The outer fixing frame is constructed of iron material, and the central processing frame is fixedly connected to the center of the outer fixing frame. A dotted adhesive groove is fixedly formed on the surface of the central processing frame.

[0008] Preferably, the limiting structure includes a right-angle limiting block, the surface of which is fixedly provided with a fixing screw hole, and the inner side of the right-angle limiting block is provided with a guide arc edge.

[0009] Preferably, the electromagnetic plate device includes a magnetic plate box and a magnetic cover plate. A ferrimagnetic rod is fixedly connected inside the magnetic plate box. There are several ferrimagnetic rods. A current-carrying wire is sleeved on the outer surface of the ferrimagnetic rod.

[0010] Preferably, a power supply body is fixedly connected to one side of the inside of the magnetic plate box, a control switch is fixedly connected to one side of the magnetic plate box, and a magnetic cover plate is fixedly connected to the upper surface of the magnetic plate box.

[0011] Preferably, the vehicle device includes a vehicle plate and support columns, with support columns fixedly connected to the lower ends of the four corners of the vehicle plate, support pads fixedly connected to the lower ends of the support columns, and a cooling device embedded through the center of the vehicle plate.

[0012] Preferably, the cooling device includes a cooling box, a serpentine cooling water pipe, and a heat-conducting copper plate. The cooling box is fixedly installed inside the cooling box, and the heat-conducting copper plate is fixedly connected to the upper end of the cooling box. An inlet and outlet are fixedly installed on one side of the cooling box, and the inlet and outlet are interconnected with the serpentine cooling water pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting right-angle limiting blocks with guide arc edges at the four corners of the upper end of the carrier device, can quickly and accurately position the placed workpiece, preventing the workpiece from shifting on the carrier. The guide arc edge design also facilitates the smooth placement of the workpiece, reducing alignment difficulty and improving loading efficiency. The outer fixing frame of the magnetic fixing plate is made of iron, and together with the electromagnetic plate device at the lower end of the carrier device, it generates a strong magnetic attraction when energized, tightly adsorbing and pressing the magnetic fixing plate onto the upper end of the workpiece. This achieves stable and reliable fixing of the workpiece, preventing displacement due to vibration or external force during dispensing and ensuring accurate dispensing position. Compared to traditional mechanical clamping methods, this magnetic fixing method does not cause indentations or damage to the surface of the workpiece, making it particularly suitable for processing materials with fragile surfaces or high precision requirements.

[0014] 2. This utility model, by setting a cooling device in the center of the carrier plate, can effectively cool the board to be processed below during the dispensing operation. The serpentine cooling water pipe in the cooling device is connected to an external cooling water source through inlet and outlet. When the cooling water circulates in the serpentine pipe, it can quickly absorb the heat on the board to be processed from the heat-conducting copper plate, thereby avoiding deformation or damage to the board to be processed due to heat accumulation caused by long-term dispensing or glue curing reaction. It is especially suitable for temperature-sensitive materials or processes that require long-term continuous dispensing, ensuring the stability of processing quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the limiting structure of this utility model; Figure 3 This is a schematic diagram of the electromagnetic plate device of this utility model; Figure 4 This is a schematic diagram of the structure of the vehicle device of this utility model; Figure 5 This is a schematic diagram of the cooling device of this utility model.

[0016] In the diagram: 1. Carrier device; 11. Carrier plate; 12. Support column; 13. Support pad; 2. Limiting structure; 21. Right-angle limiting block; 22. Fixing screw hole; 23. Guide arc edge; 3. Magnetic fixing plate; 31. Outer fixing frame; 32. Center machining frame; 33. Glue dispensing groove; 4. Plate to be processed; 5. Electromagnetic plate device; 51. Magnetic plate box; 52. Magnetic guide cover plate; 53. Ferromagnetic rod; 54. Power supply body; 55. Power-carrying wire; 56. Control switch; 6. Cooling device; 61. Cooling box; 62. Serpentine cooling water pipe; 63. Heat-conducting copper plate; 64. Inlet and outlet. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model provides a technical solution: a magnetic carrier for a dispensing machine, including a carrier device 1, with limiting structures 2 fixedly installed at the four corners of the upper end of the carrier device 1, and an electromagnetic plate device 5 fixedly connected to the lower end of the carrier device 1 through connecting columns. A plate to be processed 4 is placed on the upper end of the carrier device 1, and the four corners of the plate to be processed 4 are limited by the limiting structures 2. The electromagnetic plate device 5 is used to magnetically attract a magnetic fixing plate 3, which is located at the upper end of the plate to be processed 4.

[0019] In this embodiment, the carrier device 1 serves as the basic frame of the entire magnetic carrier. The four corners of the upper surface of the limiting structure 2 are firmly connected to the carrier device 1. The inner side of the limiting structure 2 forms a right-angle limiting space, in which the four corners of the plate to be processed 4 are precisely embedded, achieving precise horizontal positioning of the plate to be processed 4 and preventing displacement during the dispensing process. After the plate to be processed 4 is placed in place, the magnetic fixing plate 3 is placed over the upper end of the plate to be processed 4. At this time, the electromagnetic plate device 5 located at the lower end of the carrier device 1 starts to work. When the electromagnetic plate device 5 is energized, it generates a strong magnetic field. This magnetic field can penetrate the carrier device 1 and the plate to be processed 4, generating a magnetic attraction force on the magnetic fixing plate 3 located at the upper end of the plate to be processed 4, thereby pressing the magnetic fixing plate 3 tightly onto the plate to be processed 4, achieving vertical fixation of the plate to be processed 4, and further ensuring the stability of the plate to be processed 4 during the dispensing process.

[0020] Specifically, the magnetic fixing plate 3 includes an outer fixing frame 31 and a central machining frame 32. The outer fixing frame 31 is constructed of iron material, and the central machining frame 32 is fixedly connected to the center of the outer fixing frame 31. A dotted glue groove 33 is fixedly opened on the surface of the central machining frame 32.

[0021] In this embodiment, the central processing frame 32 is made of rigid plastic, such as ABS or PC. This material not only has good structural strength and can maintain its shape without deformation under magnetic adsorption, ensuring the positional accuracy of the dispensing groove 33, but its lightweight characteristics also effectively control the overall weight of the magnetic fixing plate 3, making it easy for operators to handle. The opening position, shape, and size of the dispensing groove 33 are precisely designed according to the preset dispensing area on the plate to be processed 4. Its inner wall is precision machined with smooth, burr-free edges to ensure that the dispensing needle can move smoothly in the groove and that the adhesive can be accurately and evenly applied to the designated position on the plate to be processed 4, effectively avoiding problems such as adhesive overflow or application position deviation. The outer perimeter of the outer fixing frame 31 is adapted to the right-angle limiting space formed by the limiting structure 2 on the upper end face of the carrier device 1. When the magnetic fixing plate 3 covers the plate to be processed 4, the four corners of the outer fixing frame 31 are also embedded in the limiting structure 2, thereby realizing the precise positioning of the magnetic fixing plate 3 itself in the horizontal direction, and further ensuring the accurate alignment of the glue groove 33 on the central processing frame 32 with the glue area on the plate to be processed 4.

[0022] Specifically, the limiting structure 2 includes a right-angle limiting block 21, the surface of which is fixedly provided with a fixing screw hole 22, and the inner side of the right-angle limiting block 21 is provided with a guide arc edge 23.

[0023] In this embodiment, the right-angle limiting block 21 is integrally formed from high-strength aluminum alloy, featuring light weight and high rigidity, and can withstand the pressure of the magnetic fixing plate 3 for a long time without easily deforming. The fixing screw hole 22 penetrates the upper and lower end faces of the right-angle limiting block 21, and its diameter and internal thread specifications match the preset mounting screw holes on the upper end face of the carrier device 1. The right-angle limiting block 21 is securely locked onto the carrier device 1 by passing an internal hexagonal bolt through the fixing screw hole 22, ensuring that the limiting structure 2 will not loosen or shift during long-term use. The guide arc edge 23 is located at the intersection of two adjacent sides on the inner side of the right-angle limiting block 21, with a radius of 5mm. This arc edge structure plays a good guiding role during the placement of the magnetic fixing plate 3. When the operator places the four corners of the outer fixing frame 31 of the magnetic fixing plate 3 into the right-angle limiting space of the limiting structure 2, even if there is a slight positional deviation between the corners of the outer fixing frame 31 and the inner edge of the right-angle limiting block 21, the guide arc edge 23 can guide the corners of the outer fixing frame 31 to slide smoothly into the correct limiting position through its smooth curved surface. This avoids damage to the corners of the outer fixing frame 31 or the right-angle limiting block 21 caused by hard collisions, and also improves the convenience and efficiency of placing and positioning the magnetic fixing plate 3. Each of the four corners of the upper surface of each carrier device 1 is provided with a right-angle limiting block 21. The four right-angle limiting blocks 21 are symmetrically distributed and together enclose a rectangular limiting space that precisely matches the outer perimeter of the outer fixing frame 31. The length and width of this space are 0.1mm smaller than the outer perimeter of the outer fixing frame 31, and the fitting gap is controlled within ±0.05mm. This ensures that the magnetic fixing plate 3 can be accurately positioned in the horizontal direction while also ensuring that the magnetic fixing plate 3 can be smoothly placed and removed.

[0024] Specifically, the electromagnetic plate device 5 includes a magnetic plate box 51 and a magnetic cover plate 52. A ferrimagnetic rod 53 is fixedly connected inside the magnetic plate box 51. There are several ferrimagnetic rods 53. A current-carrying wire 55 is sleeved on the outer surface of the ferrimagnetic rod 53.

[0025] In this embodiment, the magnetic plate box 51 is die-cast from high-strength aluminum alloy material. It has cylindrical mounting holes inside that correspond one-to-one with the ferrimagnetic rods 53. The diameter of the mounting holes is 0.2 mm larger than the diameter of the ferrimagnetic rods 53, and the depth of the holes is the same as the length of the ferrimagnetic rods 53. The magnetic guide cover plate 52 is made of pure iron and is 3 mm thick. Its lower surface is fixedly connected to the upper surface of the magnetic plate box 51 by internal hexagonal bolts 58. The bolt connection points are evenly distributed along the edge of the magnetic guide cover plate 52 with a spacing of 50 mm to prevent the magnetic field generated by the electromagnetic coil energized wire 55 from directly short-circuiting with the magnetic plate box 51 through the magnetic guide cover plate 52.

[0026] Specifically, a power supply body 54 is fixedly connected to one side of the inside of the magnetic plate box 51, a control switch 56 is fixedly connected to one side of the magnetic plate box 51, and a magnetic guide cover plate 52 is fixedly connected to the upper surface of the magnetic plate box 51.

[0027] In this embodiment, the power supply body 54 adopts a DC switching power supply module with adjustable output voltage. Its input voltage is AC220V and the output voltage adjustment range is DC12V-36V. The on / off of the circuit of the energized wire 55 can be controlled by the control switch 56. The control switch 56 is a rocker switch with an indicator light, which is installed in the groove on one side of the magnetic plate box 51. The operation panel of the switch is flush with the side of the magnetic plate box 51. The indicator light is green. When the switch is closed and the circuit is connected, the indicator light is lit, which makes it convenient for the operator to intuitively judge the working status of the energized electromagnetic plate device 5.

[0028] Specifically, the vehicle device 1 includes a vehicle plate 11 and support columns 12. The support columns 12 are fixedly connected to the lower ends of the four corners of the vehicle plate 11, and support pads 13 are fixedly connected to the lower ends of the support columns 12. A cooling device 6 is embedded through the center of the vehicle plate 11.

[0029] In this embodiment, the cooling device 6 adopts an embedded water-cooled plate structure. The cooling device 6 can effectively cool the plate to be processed 4, which is beneficial to accelerate the solidification of the colloid. The upper surface of the cooling device 6 is flush with the upper surface of the carrier plate 11, ensuring the flatness and stability of the plate to be processed 4 when it is placed.

[0030] Specifically, the cooling device 6 includes a cooling box 61, a serpentine cooling water pipe 62, and a heat-conducting copper plate 63. The cooling box 61 is fixedly installed inside the cooling box 61, and the heat-conducting copper plate 63 is fixedly connected to the upper end of the cooling box 61. An inlet and outlet 64 is fixedly installed on one side of the cooling box 61, and the inlet and outlet 64 are connected to the serpentine cooling water pipe 62.

[0031] In this embodiment, the heat-conducting copper plate 63 is made of high-purity copper with a thickness of 5mm. Its upper surface is precision ground, with a flatness error controlled within 0.02mm, ensuring a tight fit with the bottom surface of the plate to be processed 4. This allows for rapid heat transfer from the curing process of the colloid on the plate to the interior of the cooling box 61. The serpentine cooling water pipe 62 is made of 304 stainless steel with a diameter of 8mm and a bending radius of 15mm. It is continuously distributed in an S-shape inside the cooling box 61 with a spacing of 20mm to ensure sufficient heat exchange between the cooling water and the inner wall of the cooling box 61 and the heat-conducting copper plate 63. The cooling box 61 is made of die-cast aluminum alloy with internal cavity dimensions of 200mm × 200mm × 30mm and a wall thickness of 8mm to ensure sufficient structural strength and good heat dissipation performance. The inlet / outlet 64 is a standard G1 / 4 threaded interface with a sealing gasket groove on the outside for installing a fluororubber sealing ring to prevent cooling water leakage. The axis of the inlet / outlet 64 is perpendicular to the side of the cooling box 61 at a 90-degree angle, facilitating connection to the piping of an external cooling circulation system. When external cooling water enters the serpentine cooling water pipe 62 through the inlet / outlet 64, it flows in the pipe at a flow rate of 1.2L / min driven by a water pump. After absorbing heat, the cooling water flows out through the other inlet / outlet 64, forming a continuous cooling cycle. This allows the temperature of the plate to be processed 4 to be stably controlled at 25±2℃, which can shorten the colloid solidification time by more than 40% compared to natural cooling.

[0032] Working principle; When the workpiece 4 is placed on the carrier plate 11 of the carrier device 1, and its four corners are embedded in the right-angle limiting space formed by the right-angle limiting blocks 21 of the limiting structure 2, the four corners of the outer fixing frame 31 of the magnetic fixing plate 3 are also embedded in the limiting structure 2, so that the dispensing groove 33 on the central processing frame 32 is precisely aligned with the dispensing area on the workpiece 4. Then, the operator presses the control switch 56 on one side of the magnetic plate box 51, and the power supply body 54 supplies power to the power-conducting wire 55 of the electromagnetic plate device 5. The ferrimagnetic rod 53 wound on the power-conducting wire 55 generates a magnetic field. This magnetic field penetrates the carrier plate 11 and the workpiece 4, and generates a magnetic attraction force on the iron outer fixing frame 31 of the magnetic fixing plate 3 located at the upper end of the workpiece 4, pressing the magnetic fixing plate 3 tightly onto the workpiece 4, achieving vertical fixation. At this time, the dispensing needle of the dispensing machine can perform dispensing operations along the dispensing groove 33 of the magnetic fixing plate 3. During the dispensing process, the cooling device 6 is connected to an external cooling circulation system through inlet and outlet ports 64. Cooling water flows within the serpentine cooling water pipe 62, absorbing the heat generated by the curing of the adhesive on the board 4 through the heat-conducting copper plate 63, thus maintaining the board 4 at a suitable temperature and accelerating the solidification of the adhesive. After dispensing is completed, the control switch 56 is turned off, the magnetic field of the electromagnetic plate device 5 disappears, the magnetic attraction force is released, and the operator can then remove the magnetic fixing plate 3 and the completed board 4. Throughout the process, the limiting structure 2 ensures the precise horizontal positioning of the board 4 and the magnetic fixing plate 3, the electromagnetic plate device 5 provides reliable vertical fixation, and the cooling device 6 effectively improves the curing efficiency of the adhesive. The three work together to ensure the accuracy and stability of the dispensing process.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic carrier for a dispensing machine, comprising a carrier device (1), characterized in that: The upper end of the carrier device (1) is fixedly provided with a limiting structure (2) at the four corners. The lower end of the carrier device (1) is fixedly connected to a magnetic plate device (5) through a connecting column. The upper end of the carrier device (1) is provided with a plate to be processed (4). The four corners of the plate to be processed (4) are limited by the limiting structure (2). The magnetic plate device (5) is magnetically attracted to a magnetic fixing plate (3). The magnetic fixing plate (3) is located at the upper end of the plate to be processed (4).

2. The magnetic carrier for a dispensing machine according to claim 1, characterized in that: The magnetic fixing plate (3) includes an outer fixing frame (31) and a central processing frame (32). The outer fixing frame (31) is constructed of iron material. The center of the outer fixing frame (31) is fixedly connected to the central processing frame (32). The surface of the central processing frame (32) is fixedly provided with a dotted glue groove (33).

3. The magnetic carrier for a dispensing machine according to claim 1, characterized in that: The limiting structure (2) includes a right-angle limiting block (21), the surface of which is fixedly provided with a fixing screw hole (22), and the inner side of the right-angle limiting block (21) is provided with a guide arc edge (23).

4. The magnetic carrier for a dispensing machine according to claim 1, characterized in that: The electromagnetic plate device (5) includes a magnetic plate box (51) and a magnetic cover plate (52). A ferrimagnetic rod (53) is fixedly connected inside the magnetic plate box (51). There are several ferrimagnetic rods (53). A current-carrying wire (55) is sleeved on the outer surface of the ferrimagnetic rod (53).

5. The magnetic carrier for a dispensing machine according to claim 4, characterized in that: A power supply body (54) is fixedly connected to one side of the inside of the magnetic plate box (51), a control switch (56) is fixedly connected to one side of the magnetic plate box (51), and a magnetic guide cover plate (52) is fixedly connected to the upper surface of the magnetic plate box (51).

6. The magnetic carrier for a dispensing machine according to claim 1, characterized in that: The vehicle device (1) includes a vehicle plate (11) and support columns (12). The support columns (12) are fixedly connected to the lower ends of the four corners of the vehicle plate (11), and support pads (13) are fixedly connected to the lower ends of the support columns (12). A cooling device (6) is embedded through the center of the vehicle plate (11).

7. The magnetic carrier for a dispensing machine according to claim 6, characterized in that: The cooling device (6) includes a cooling box (61), a serpentine cooling water pipe (62), and a heat-conducting copper plate (63). The cooling box (61) is fixedly installed inside the cooling box (61). The heat-conducting copper plate (63) is fixedly connected to the upper end of the cooling box (61). An inlet and outlet (64) is fixedly installed at one end of the outer side of the cooling box (61). The inlet and outlet (64) are interconnected with the serpentine cooling water pipe (62).

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