A material spreading device

Abstract

This utility model discloses a resin spreading device, including a cabinet, a control unit, a feeding mechanism located inside the cabinet, a spreading fixture, and a moving mechanism. The bottom of the spreading fixture is connected to the moving mechanism, which drives the spreading fixture to move along a first direction and / or a second direction. Both the feeding mechanism and the moving mechanism are electrically connected to the control unit. The feeding mechanism includes a material box, a vibration component, and a material trough assembly. The top of the material trough assembly is connected to and communicates with the bottom of the material box. The vibration component is also connected to the material trough assembly, which is located above the spreading fixture. The material box stores resin particles, and the vibration component spreads the resin particles from the material box onto the spreading fixture through the material trough assembly. This resin spreading device can automatically spread resin particles, ensuring the uniformity of resin particle spreading and accurately controlling the amount of resin particles spread. It eliminates uncontrollable factors associated with manual spreading, thereby avoiding quality problems during product molding.

Description

Technical Field

[0001] This utility model belongs to the field of semiconductor packaging equipment technology, and specifically relates to a material spreading device. Background Technology

[0002] In existing technology, when using a resin spreading fixture, a certain mass of resin granules is first weighed, then manually poured onto the fixture. The fixture is then used to shake the granules onto a mold for final molding. However, manually spreading the resin granules results in uneven distribution, making it difficult to cover the entire fixture and evenly distribute them. This leads to uneven distribution when the granules are shaken from the fixture onto the mold, affecting the quality of the molded product. Utility Model Content

[0003] In view of this, in order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a spreading device that can realize the automatic spreading of resin particles and ensure the uniformity of spreading.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A resin spreading device includes a cabinet, a control unit, a feeding mechanism, a spreading fixture, and a moving mechanism located inside the cabinet. The bottom of the spreading fixture is connected to the moving mechanism, which drives the spreading fixture to move along a first direction and / or a second direction. Both the feeding mechanism and the moving mechanism are electrically connected to the control unit. The feeding mechanism includes a material box, a vibration component, and a material trough assembly. The top of one end of the material trough assembly is connected to and communicates with the bottom of the material box. The vibration component is also connected to the material trough assembly, which is located above the spreading fixture. The material box stores resin particles, and the vibration component spreads the resin particles from the material box onto the spreading fixture through the material trough assembly. The control unit sets parameters such as the mass of the resin particles to be spread, the spreading speed, and the spreading route of the moving mechanism through computer software. The control unit then controls the spreading of resin particles through signal transmission between the control unit and the feeding and moving mechanisms.

[0006] According to some preferred embodiments of the present invention, the material trough assembly includes a first material trough and a second material trough. The top of the end of the first material trough away from the second material trough is fixedly connected to the bottom of the material box. A connecting rod is fixedly provided on the top of the second material trough, and the end of the connecting rod away from the second material trough is fixedly connected to the top of the cabinet. The first material trough is perpendicular to the second material trough, the first material trough is parallel to the first direction, and the second material trough is parallel to the vertical direction.

[0007] According to some preferred embodiments of the present invention, a through groove is provided at the top of the first material trough near the vibrating component, and a first discharge port is provided at the end of the first material trough away from the vibrating component; a first through port is provided at the top of the second material trough, a second through port is provided at the end of the second material trough near the first material trough, and a second discharge port is provided at the end of the second material trough away from the first material trough.

[0008] According to some preferred embodiments of the present invention, the end of the first material trough near the second material trough passes through the second opening and is located inside the second material trough. The height of the second opening is greater than the height of the first material trough. The plane where the first opening is located is located above the plane where the channel is located. The length of the channel is less than the length of the first material trough.

[0009] According to some preferred embodiments of the present invention, the bottom of the material box has a base plate, and a third through-hole is provided on the base plate through its thickness direction. The third through-hole communicates with the through groove. The two sides of the base plate are fixedly connected to the top of the end of the first material groove away from the second material groove. The width of the base plate is greater than the width of the through groove.

[0010] According to some preferred embodiments of the present invention, the moving mechanism includes a first fixed plate, a second fixed plate, a first driving component connected to the first fixed plate, and a second driving component connected to the second fixed plate. The first driving component is used to drive the first fixed plate to move back and forth along the first direction, and the second driving component is used to drive the second fixed plate to move back and forth along the second direction.

[0011] According to some preferred embodiments of the present invention, the two sides of the material spreading fixture are fixedly connected to the two sides of the top of the first fixed plate in the width direction by fixing blocks. Multiple first sliders are fixedly provided on both sides of the bottom surface of the first fixed plate in the width direction. Multiple first slide rails are fixedly provided on both sides of the top surface of the second fixed plate in the length direction. Multiple first sliders located on the same side are slidably connected to the corresponding first slide rails. The first slide rails are parallel to the width direction of the first fixed plate and the length of the first slide rails is greater than the width of the first fixed plate.

[0012] According to some preferred embodiments of the present invention, the cabinet has a tray inside, the feeding mechanism and the moving mechanism are both located above the tray, and a second slide rail is fixedly provided on both sides of the top surface of the tray along the length direction; a plurality of second sliders are fixedly provided on both sides of the bottom surface of the second fixed plate along the width direction, and the plurality of second sliders located on the same side are slidably connected to the corresponding second slide rail, the second slide rail is parallel to the width direction of the second fixed plate and the length of the second slide rail is greater than the width of the second fixed plate.

[0013] According to some preferred embodiments of this utility model, the vibration assembly includes a protective cover, a vibrating plate, and a weighing sensor. The weighing sensor and part of the vibrating plate are located inside the protective cover. The vibrating plate is located above the weighing sensor and below the material box. The top of the vibrating plate is fixedly connected to the bottom of the first material trough. The weighing sensor is used to monitor the weight of the resin particles entering the spreading fixture from the material box through the material trough assembly. Since the bottom of the material box is connected to the first material trough, when resin particles are added to the material box, the resin particles will fall from the material box into the first material trough. When the vibrating plate is not vibrating, the resin particles will continuously block the outlet at the bottom of the material box. Therefore, through the vibration of the vibrating plate, the resin particles blocking the outlet at the bottom of the material box can continuously fall into the first material trough. With the continuous vibration of the vibrating plate, the resin particles falling into the first material trough are vibrated and transmitted from the first material trough to the top of the second chute, and then fall down from the second material trough into the spreading fixture.

[0014] According to some preferred embodiments of the present invention, the first direction is parallel to the length direction of the cabinet, and the second direction is parallel to the width direction of the cabinet.

[0015] By adopting the above technical solutions, compared with the prior art, the material spreading device of this utility model, through the setting of a feeding mechanism, a moving mechanism and a control unit electrically connected to the two, uses the moving mechanism to drive the spreading fixture to move along a set route, which can realize automatic spreading of resin particles, while ensuring the uniformity of resin particle spreading, and can accurately control the amount of resin particles spread, eliminating the uncontrollable factors of manual spreading, thereby avoiding quality problems during product molding. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the spreading device in a preferred embodiment of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the material spreading device hidden behind the cabinet door in a preferred embodiment of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the 3D structure after concealing some parts of the structure;

[0020] Figure 4 for Figure 3Front view structural diagram;

[0021] The attached figures are labeled as follows:

[0022] Cabinet-1, Connecting rod-11, Support plate-12, Control panel-2, Feeding mechanism-3, Material box-31, Base plate-311, Vibration assembly-32, Protective cover-321, Vibration plate-322, First material trough-33, First discharge port-331, Second material trough-34, First through-hole-341, Second through-hole-342, Bracket-35, Spreading fixture-4, First fixing plate-51, Second fixing plate-52, First drive assembly-53, Second drive assembly-54, Fixing block-55, First slider-56, First slide rail-57, Second slide rail-58, Second slider-59. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] Reference Figures 1 to 4 This embodiment of a spreading device includes a cabinet 1, a control unit, a feeding mechanism 3, a spreading fixture 4, and a moving mechanism located inside the cabinet 1. The cabinet 1 has a support plate 12 and a connecting rod 11. One end of the connecting rod 11 is fixedly connected to the top of the cabinet 1, and the connecting rod 11 is parallel to the height direction of the cabinet 1. The support plate 12 is parallel to the top surface of the cabinet 1. The feeding mechanism 3 and the moving mechanism are both located above the support plate 12. The bottom of the spreading fixture 4 is connected to the moving mechanism, which drives the spreading fixture 4 to move along a first direction and / or a second direction. Both the feeding mechanism 3 and the moving mechanism are electrically connected to the control unit, which can control the actions of the feeding mechanism 3 and the moving mechanism. The control unit includes a control panel 2, which is embedded in the cabinet door of the cabinet 1. The control panel 2 facilitates the setting of the software program in the control unit by the operator. In this embodiment, parameters such as the mass of the resin particles to be spread, the spreading speed, and the spreading route of the moving mechanism can be set in the software program of the control unit.

[0025] Furthermore, such as Figures 2 to 4As shown, the feeding mechanism 3 includes a material box 31, a vibration component 32, a material trough component, and a support 35. The material box 31 is located above the vibration component 32, and the material trough component is located above the spreading fixture 4. The material box 31 is used to store resin particles, and the vibration component 32 is used to spread the resin particles in the material box 31 onto the spreading fixture 4 through the material trough component.

[0026] Specifically, the bottom of the material box 31 has a base plate 311, and the material trough assembly includes a first material trough 33 and a second material trough 34. The top of the end of the first material trough 33 away from the second material trough 34 is fixedly connected to the base plate 311 at the bottom of the material box 31, and the top of the second material trough 34 is fixedly connected to the bottom end of the connecting rod 11. The first material trough 33 is perpendicular to the second material trough 34, the first material trough 33 is parallel to a first direction, and the second material trough 34 is parallel to a vertical direction. The first direction is parallel to the length direction of the cabinet 1, and the second direction is parallel to the width direction of the cabinet 1.

[0027] A third through-hole extending through its thickness is provided on the base plate 311. A through-slot is provided at the top of the end of the first material trough 33 near the vibrating component 32. The length of the through-slot is less than the length of the first material trough 33, and the width of the base plate 311 is greater than the width of the through-slot. The third through-hole communicates with the through-slot. The end of the first material trough 33 away from the vibrating component 32 has a first outlet 331. The top of the second material trough 34 has a first through-hole 341. The end of the second material trough 34 near the first material trough 33 has a second through-hole 342. The end of the second material trough 34 away from the first material trough 33 has a second outlet. The end of the first material trough 33 near the second material trough 34 passes through the second through-hole 342 and is located inside the second material trough 34. The height of the second through-hole 342 is greater than the height of the first material trough 33. The plane of the first through-hole 341 is located above the plane of the through-slot, ensuring that resin particles do not spill to the outside when transported in the first material trough 33 and the second material trough 34.

[0028] In addition, the vibration assembly 32 includes a protective cover 321, a vibratory plate 322 and a weighing sensor. The bottom of the protective cover 321 is fixedly connected to the top of the bracket 35, and the bottom of the bracket 35 is fixedly connected to the top surface of the support plate 12 to provide support for the vibration assembly 32. The vibratory plate 322 is located above the weighing sensor and below the material box 31. The weighing sensor is completely inside the protective cover 321. The lower end of the vibratory plate 322 is located inside the protective cover 321. The top of the vibratory plate 322 is fixedly connected to the bottom of the first material trough 33. Through the vibration of the vibratory plate 322, the resin particles in the material box 31 can continuously fall into the first material trough 33 through the third opening and the trough. With the continuous vibration of the vibratory plate 322, the resin particles falling into the first material trough 33 enter the second material trough 34 from the first outlet 331 of the first material trough 33 and the second opening 342 of the second material trough 34, and then exit from the second outlet at the bottom of the second chute, so that the resin particles fall downward into the spreading fixture 4. The weighing sensor is used to monitor the weight of the resin particles entering the spreading fixture 4 from the material box 31 through the material trough assembly. Since the weight monitored by the weighing sensor is known when no resin particles are added to the material box 31, when a large number of resin particles are added at once, the total weight G1 monitored by the weighing sensor will change and become heavier. During the process of spreading the resin particles from the material trough assembly to the spreading fixture 4, as the number of resin particles in the material box 31 gradually decreases, the total weight G2 monitored by the weighing sensor will become lighter. By monitoring the difference between G2 and G1, the amount of resin particles spread can be obtained. When the difference reaches the set target mass, the vibrating plate 322 stops vibrating.

[0029] Furthermore, the moving mechanism includes a first fixed plate 51, a second fixed plate 52, a first drive assembly 53 connected to the first fixed plate 51, and a second drive assembly 54 connected to the second fixed plate 52. Two fixed blocks 55 are fixedly disposed on both sides of the spreading fixture 4, and the end of each fixed block 55 away from the spreading fixture 4 is fixedly connected to the side edge of the top of the first fixed plate 51 in the width direction. Two first sliders 56 are fixedly disposed on both sides of the bottom surface of the first fixed plate 51 in the width direction, and first slide rails 57 are fixedly disposed on both sides of the top surface of the second fixed plate 52 in the length direction. Two first sliders 56 located on the same side are slidably connected to the corresponding first slide rails 57. The first slide rails 57 are parallel to the width direction of the first fixed plate 51, and the length of the first slide rails 57 is greater than the width of the first fixed plate 51. A second slide rail 58 is fixedly installed on both sides of the top surface of the support plate 12 along its length direction; two second sliders 59 are fixedly installed on both sides of the bottom surface of the second fixed plate 52 along its width direction. The two second sliders 59 located on the same side are slidably connected to the corresponding second slide rail 58. The second slide rail 58 is parallel to the width direction of the second fixed plate 52, and the length of the second slide rail 58 is greater than the width of the second fixed plate 52. The first drive assembly 53 is used to drive the first fixed plate 51 to move back and forth along the first direction, and the second drive assembly 54 is used to drive the second fixed plate 52 to move left and right along the second direction. Since the second material trough 34 is stationary during the movement of the moving mechanism, the resin particles can be evenly spread in the spreading fixture 4 by setting the movement path of the moving mechanism.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A material spreading device, characterized in that, The device includes a cabinet, a control unit, a feeding mechanism, a spreading fixture, and a moving mechanism located inside the cabinet. The bottom of the spreading fixture is connected to the moving mechanism, which drives the spreading fixture to move along a first direction and / or a second direction. Both the feeding mechanism and the moving mechanism are electrically connected to the control unit. The feeding mechanism includes a material box, a vibration component, and a material trough assembly. The top of one end of the material trough assembly is connected to and communicates with the bottom of the material box. The vibration component is also connected to the material trough assembly. The material trough assembly is located above the spreading fixture. The material box is used to store resin particles, and the vibration component is used to spread the resin particles in the material box onto the spreading fixture through the material trough assembly.

2. The spreading device according to claim 1, characterized in that, The material trough assembly includes a first material trough and a second material trough. The top of the first material trough, away from the second material trough, is fixedly connected to the bottom of the material box. A connecting rod is fixedly installed on the top of the second material trough, and the end of the connecting rod away from the second material trough is fixedly connected to the top of the cabinet. The first material trough is perpendicular to the second material trough and parallel to the first direction. The second material trough is parallel to the vertical direction.

3. The spreading device according to claim 2, characterized in that, The first material trough has a through groove at the top of the end near the vibration component, and a first discharge port at the end away from the vibration component; the second material trough has a first opening at the top, a second opening at the end of the second material trough near the first material trough, and a second discharge port at the end of the second material trough away from the first material trough.

4. The spreading device according to claim 3, characterized in that, The end of the first material trough near the second material trough passes through the second opening and is located inside the second material trough. The height of the second opening is greater than the height of the first material trough. The plane where the first opening is located is above the plane where the channel is located. The length of the channel is less than the length of the first material trough.

5. The spreading device according to claim 4, characterized in that, The bottom of the material box has a base plate, and a third through-hole is provided on the base plate through its thickness direction. The third through-hole is connected to the through groove. The two sides of the base plate are fixedly connected to the top of the end of the first material groove away from the second material groove. The width of the base plate is greater than the width of the through groove.

6. The spreading device according to claim 5, characterized in that, The moving mechanism includes a first fixed plate, a second fixed plate, a first driving component connected to the first fixed plate, and a second driving component connected to the second fixed plate. The first driving component is used to drive the first fixed plate to move back and forth along the first direction, and the second driving component is used to drive the second fixed plate to move back and forth along the second direction.

7. The spreading device according to claim 6, characterized in that, The two sides of the material spreading fixture are fixedly connected to the two sides of the top of the first fixed plate in the width direction by fixing blocks. Multiple first sliders are fixedly provided on both sides of the bottom surface of the first fixed plate in the width direction. Multiple first slide rails are fixedly provided on both sides of the top surface of the second fixed plate in the length direction. Multiple first sliders located on the same side are slidably connected to the corresponding first slide rails. The first slide rails are parallel to the width direction of the first fixed plate and the length of the first slide rails is greater than the width of the first fixed plate.

8. The spreading device according to claim 7, characterized in that, The cabinet has a tray inside, and the feeding mechanism and the moving mechanism are both located above the tray. A second slide rail is fixedly installed on both sides of the top surface of the tray along the length direction. A plurality of second sliders are fixedly installed on both sides of the bottom surface of the second fixed plate along the width direction. The plurality of second sliders located on the same side are slidably connected to the corresponding second slide rail. The second slide rail is parallel to the width direction of the second fixed plate and the length of the second slide rail is greater than the width of the second fixed plate.

9. The spreading device according to claim 2, characterized in that, The vibration assembly includes a protective cover, a vibrating plate, and a weighing sensor. The weighing sensor and part of the vibrating plate are located inside the protective cover. The vibrating plate is located above the weighing sensor and below the material box. The top of the vibrating plate is fixedly connected to the bottom of the first material trough. The weighing sensor is used to monitor the weight of the resin particles entering the spreading fixture from the material box through the material trough assembly.

10. The spreading device according to claim 1, characterized in that, The first direction is parallel to the length direction of the cabinet, and the second direction is parallel to the width direction of the cabinet.

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