Novel glue scraping mechanism

Abstract

The utility model relates to the field of chips, in particular to a novel glue scraping mechanism which comprises a supporting plate and a support installed on the supporting plate, a guide rail is arranged on the bottom end face of the support, the bottom end of the guide rail is connected with a guide block in a matched mode, the guide block is matched with the guide rail in a sliding mode, and the bottom of the guide block is fixedly connected with a moving block. A sliding groove is formed in the lower portion of the moving block, and the sliding groove is formed in the length direction of the moving block. A driving mechanism is fixed to the bottom of the supporting plate, an output shaft of the driving mechanism penetrates through the supporting plate to be connected with an eccentric wheel, the eccentric wheel is fixedly connected with an external thread type bearing, the external thread type bearing upwards extends into the sliding groove, and the external thread type bearing is in clearance fit with the sliding groove; a glue storage plate is arranged on the top end face, parallel to and far away from the supporting plate, in the support, a pressing block is connected to one side of the movable block, and a glue storage bin is arranged on the corresponding pressing block above the glue storage plate.

Description

Technical Field

[0001] The utility model relates to a glue scraping mechanism, in particular to a novel glue scraping mechanism. Background Art

[0002] In traditional chip packaging, the chip is bonded by dispensing silver paste onto the substrate surface. The amount of paste applied can vary greatly, impacting the quality of the packaged product. Therefore, advanced packaging techniques utilize a scraping process. A pick-up head picks up the chip and places it on a paste reservoir, where the silver paste adheres evenly to the back of the chip. The paste reservoir precisely controls the thickness and uniformity of the paste to ensure accurate and reliable chip packaging, thereby improving product yield.

[0003] However, the current scraping mechanism adopts a transverse transmission mode, which results in a larger volume of the scraping mechanism and thus requires a larger installation space. Utility Model Content

[0004] The utility model provides a new scraping mechanism, which solves the technical problem of the existing scraping mechanism being large in size and provides the following technical solutions:

[0005] A novel scraping mechanism comprises a support plate and a bracket mounted on the support plate, characterized in that a horizontally arranged guide rail is provided on the bottom end surface of the bracket, a guide block is adapted to be connected to the bottom end of the guide rail, and the guide block and the guide rail are slidably matched, a horizontally arranged moving block is fixedly connected to the bottom of the guide block, the length direction of the moving block is perpendicular to the length direction of the guide rail, a slide groove is provided at the bottom of the moving block, and the slide groove is arranged along the length direction of the moving block;

[0006] A driving mechanism is fixed to the bottom of the support plate, and an output shaft of the driving mechanism passes through the support plate and is connected to an eccentric wheel. An end of the eccentric wheel close to the outer periphery is fixedly connected to an externally threaded bearing, which extends upward into the slide groove, and the externally threaded bearing and the slide groove are in a clearance fit.

[0007] A horizontally arranged glue storage plate is provided on the top surface of the bracket, and the length direction of the glue storage plate is consistent with the length direction of the guide rail; a pressing block is connected to one side of the moving block, and the pressing block extends upward to the top of the glue storage plate, and a glue storage bin is provided on the pressing block corresponding to the top of the glue storage plate.

[0008] By adopting the above technical solution, the external threaded bearing on the eccentric wheel is arranged in the slide groove on the moving block. When the driving mechanism drives the eccentric wheel to rotate, the external threaded bearing on the eccentric wheel rotates synchronously. However, since the external threaded bearing is arranged in the slide groove on the moving block, the external threaded bearing will move in a straight line along the slide groove, which will push the moving block to move along the length direction of the guide rail. The movement of the moving block will cause the pressing block and the glue storage bin on the pressing block to move in a synchronous straight line. During the movement of the glue storage bin, the glue scraping work is completed.

[0009] Because the driving mechanism, moving block, glue storage plate and glue storage bin are arranged in sequence along the longitudinal direction, and each pair of structures are arranged in sequence in upper and lower positions, the structure of the device is compact, thereby reducing the volume of the device and thus reducing the installation space occupied by the device.

[0010] Furthermore, connecting parts are respectively provided at both ends of the moving block, and each connecting part is connected to the corresponding side wall surface of the pressing block through a first bolt; first through holes are respectively provided at both ends of the moving block, and a first notch is correspondingly provided on the connecting part corresponding to each first through hole, and each first notch is larger than the corresponding first through hole, and a quick locking mechanism is provided in each first notch, and each quick locking mechanism includes a locking shell and a second bolt arranged vertically, each locking shell is arranged at the top of the moving block, and each second bolt passes through the corresponding locking shell and the first through hole in sequence.

[0011] By adopting the above technical solution and setting up the connecting piece and the quick locking mechanism, when it is necessary to disassemble the device, the quick locking mechanism and the connecting piece can be quickly removed from the moving block by screwing the second bolt and the first bolt. Similarly, the connecting piece and the locking mechanism can be quickly installed on the moving block by screwing the first bolt and the second bolt. The structure is simple and the operation is convenient, which can speed up the disassembly and assembly of the device and save time.

[0012] Furthermore, a fixing block is provided on the bracket, a second notch is provided at one end of the fixing block close to the eccentric wheel, and a sensor is provided in the second notch; the driving mechanism includes a motor, a sensor sheet is provided on the motor output shaft corresponding to the bottom of the eccentric wheel, and the outer ring of the sensor sheet extends into the second notch.

[0013] By adopting the above technical solution and setting the sensor piece, the accuracy of the sensor in detecting the position of the eccentric wheel can be enhanced, so that the motor can accurately control the rotation of the eccentric wheel, thereby improving the accuracy of the scraping operation.

[0014] Furthermore, the pressing block includes an integrally formed first support rod, a second support rod and a connecting rod, and the two ends of the connecting rod are respectively connected to the top of the first support rod and the second support rod; the first support rod and the second support rod are both arranged in an "L" shape, and the vertical sections of the first support rod and the second support rod are connected to the movable block through a rotating shaft, and the vertical sections of the first support rod and the second support rod are respectively connected to the corresponding connecting parts, and the rubber storage plate is arranged between the horizontal sections of the first support rod and the second support rod.

[0015] Furthermore, the bracket is arranged in an "L" shape, the vertical section of the bracket is arranged at one end of the top of the support plate, and the horizontal section of the bracket is arranged at intervals above the support plate; the guide rail is arranged on the bottom end surface of the horizontal section of the bracket, and the first support rod and the second support rod are respectively arranged on both sides of the horizontal section of the bracket, and the distance between the first support rod and the second support rod is greater than the width value of the horizontal section of the bracket.

[0016] Furthermore, the eccentric wheel includes an annular portion and a protrusion that are integrally formed, the output shaft of the motor is fixedly connected to the inner ring of the annular portion, a plurality of third notches are provided on the outer periphery of the annular portion, and the externally threaded bearing is provided on the protrusion.

[0017] In summary, this application has the following beneficial effects:

[0018] 1. By setting the external threaded bearing on the eccentric wheel in the slide groove on the moving block, the driving mechanism drives the eccentric wheel to rotate, and the external threaded bearing on the eccentric wheel rotates synchronously. However, because the external threaded bearing is set in the slide groove on the moving block, the external threaded bearing will move linearly along the slide groove, which will push the moving block to move along the length direction of the guide rail. The movement of the moving block will cause the pressing block and the glue storage bin on the pressing block to move synchronously in a linear direction. During the movement of the glue storage bin, the glue scraping work is completed.

[0019] Because the driving mechanism, the moving block, the rubber storage plate and the rubber storage bin are arranged in sequence along the longitudinal direction, and each pair of structures are arranged in sequence in an upper and lower position, the structure of the device is compact, thereby reducing the volume of the device and thus reducing the installation space occupied by the device;

[0020] 2. By setting the connecting piece and the quick locking mechanism, when the device needs to be disassembled, the quick locking mechanism and the connecting piece can be quickly removed from the moving block by screwing the second bolt and the first bolt. Similarly, the connecting piece and the locking mechanism can be quickly installed on the moving block by screwing the first bolt and the second bolt. The structure is simple and the operation is convenient, which can speed up the disassembly and assembly of the device and save time.

[0021] 3. By setting the sensor piece, the accuracy of the sensor's detection of the eccentric wheel position can be enhanced, so that the motor can accurately control the rotation of the eccentric wheel, thereby improving the accuracy of the scraping operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a new scraping mechanism from perspective 1;

[0023] Figure 2 This is a structural schematic diagram of a new scraping mechanism from a second perspective;

[0024] Figure 3 This is a planar schematic diagram of the third viewing angle of a novel scraping mechanism;

[0025] Figure 4 for Figure 2 A partial enlarged view of the serial number A;

[0026] Figure 5 This is a schematic diagram of the structure of the pressure block in a new scraping mechanism;

[0027] Figure 6 This is a structural diagram of a moving block in a novel scraping mechanism;

[0028] Figure 7 This is a structural diagram of a connecting piece in a novel scraping mechanism;

[0029] Figure 8 This is a top view of the eccentric wheel in this novel scraping mechanism;

[0030] In the figure: 1. support plate; 2. bracket; 3. guide rail; 4. guide block; 5. moving block; 6. slide groove; 7. driving mechanism; 8. eccentric wheel; 801. annular portion; 802. protrusion; 9. external threaded bearing; 10. rubber storage plate; 11. pressure block; 1101. first support rod; 1102. second support rod; 1103. connecting rod; 12. rubber storage bin; 13. connecting piece; 14. first bolt; 15. first through hole; 16. first notch; 17. quick locking mechanism; 1701. locking shell; 1702. second bolt; 18. fixing block; 19. second notch; 20. sensor sheet; 21. rotating shaft; 22. third notch. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the accompanying drawings.

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] In a specific embodiment, referring to Figure 1-8 A new scraping mechanism includes a support plate 1 and a bracket 2 installed on the support plate 1. The bottom end surface of the bracket 2 has a horizontally arranged guide rail 3. The bottom end of the guide rail 3 is adapted to be connected with a guide block 4, and the guide block 4 and the guide rail 3 are slidably matched. The bottom of the guide block 4 is fixedly connected with a horizontally arranged moving block 5. The length direction of the moving block 5 is perpendicular to the length direction of the guide rail 3. A slide groove 6 is provided at the lower part of the moving block 5, and the slide groove 6 is arranged along the length direction of the moving block 5.

[0034] A driving mechanism 7 is fixed to the bottom of the support plate 1. The output shaft of the driving mechanism 7 passes through the support plate 1 and is connected to an eccentric wheel 8. An end of the eccentric wheel 8 close to the outer periphery is fixedly connected to an externally threaded bearing 9. The externally threaded bearing 9 extends upward into the slide groove 6, and the externally threaded bearing 9 and the slide groove 6 are in a clearance fit.

[0035] There is a horizontally arranged glue storage plate 10 on the top surface of the bracket 2, and the length direction of the glue storage plate 10 is consistent with the length direction of the guide rail 3. The glue storage plate 10 is used to evenly adhere the silver glue on it to the back of the chip. The structure and specific installation method of the glue storage plate 10 belong to the existing technology and will not be described in detail here; one side of the moving block 5 is connected to a pressing block 11, which extends upward to the top of the glue storage plate 10. A glue storage bin 12 is provided on the corresponding pressing block 11 above the glue storage plate 10. The glue storage bin 12 is used to store the scraped glue. The structure and specific installation method of the glue storage bin 12 belong to the existing technology and will not be described in detail here.

[0036] When the driving mechanism 7 drives the eccentric wheel 8 to rotate, the externally threaded bearing 9 on the eccentric wheel 8 rotates synchronously. However, because the externally threaded bearing 9 is arranged in the slide groove 6 on the moving block 5, the externally threaded bearing 9 will move linearly along the slide groove 6, which will push the moving block 5 to move along the length direction of the guide rail 3. The movement of the moving block 5 will cause the pressing block 11 and the glue storage bin 12 on the pressing block 11 to move linearly synchronously. During the movement of the glue storage bin 12, the glue scraping work is completed.

[0037] The cooperation between the external threaded bearing 9 and the moving block 5 converts the circular motion of the eccentric wheel 8 into linear motion. Since the driving mechanism 7, the moving block 5, the rubber storage plate 10 and the rubber storage bin 12 are arranged in sequence along the longitudinal direction, and each pair of structures are arranged in sequence in the upper and lower positions, this makes the structure of the device compact, thereby reducing the volume of the device and thus reducing the installation space occupied by the device.

[0038] The two ends of the moving block 5 are respectively provided with connecting members 13, and each connecting member 13 is connected to the corresponding side wall surface of the pressing block 11 through a first bolt 14; the two ends of the moving block 5 are respectively provided with a first through hole 15, and the connecting member 13 corresponding to each first through hole 15 is correspondingly provided with a first notch 16, and each first notch 16 is larger than the corresponding first through hole 15, and a quick locking mechanism 17 is provided in each first notch 16, and each quick locking mechanism 17 includes a locking shell 1701 and a second bolt 1702 arranged in a vertical shape, and each locking shell 170 1 are all arranged on the top of the moving block 5, and each second bolt 1702 passes through the corresponding locking shell 1701 and the first through hole 15 in sequence; when it is necessary to disassemble the device, by screwing the second bolt 1702 and the first bolt 14, the quick locking mechanism 17 and the connecting member 13 can be quickly removed from the moving block respectively. Similarly, by screwing the first bolt 14 and the second bolt 1702, the connecting member 13 and the locking mechanism can be quickly installed on the moving block 5 respectively. The structure is simple and the operation is convenient, which can speed up the disassembly and assembly of the device and save time.

[0039] like Figure 2 As shown, a fixing block 18 is provided on the bracket 2, and a second notch 19 is provided at one end of the fixing block 18 close to the eccentric wheel 8, and a sensor is provided in the second notch 19; the driving mechanism 7 includes a motor, and a sensor piece 20 is provided on the motor output shaft corresponding to the bottom of the eccentric wheel 8, and the outer ring of the sensor piece 20 extends into the second notch 19; in the process of the motor driving the eccentric wheel 8 to rotate, the sensor piece 20 and the eccentric wheel 8 rotate synchronously, and the sensor piece 20 can enhance the sensor's detection accuracy of the eccentric wheel 8 position, thereby enabling the motor to accurately control the rotation of the eccentric wheel 8, thereby improving the accuracy of the scraping operation.

[0040] like Figure 2 、 Figure 5 and Figure 7 As shown, the pressing block 11 includes an integrally formed first support rod 1101, a second support rod 1102 and a connecting rod 1103, the two ends of the connecting rod 1103 are respectively connected to the top of the first support rod 1101 and the second support rod 1102; the first support rod 1101 and the second support rod 1102 are both arranged in an "L" shape, the vertical sections of the first support rod 1101 and the second support rod 1102 are connected to the moving block 5 through the rotating shaft 21, the vertical sections of the first support rod 1101 and the second support rod 1102 are respectively connected to the corresponding connecting members 13, and the rubber storage plate 10 is arranged between the horizontal sections of the first support rod 1101 and the second support rod 1102;

[0041] The lower ends of the horizontal sections of the first support rod 1101 and the second support rod 1102 are both provided with grooves, and a connecting shaft is fixed in each groove. The two ends of the glue storage bin 12 close to the connecting shaft are both provided with grooves adapted to the connecting shaft, and each connecting shaft is rotatably matched with the glue storage bin 12.

[0042] like Figure 1 and Figure 7 As shown, the bracket 2 is arranged in an "L" shape, the vertical section of the bracket 2 is arranged at one end of the top of the support plate 1, and the horizontal section of the bracket 2 is arranged at intervals above the support plate 1; the bottom end surface of the horizontal section of the bracket 2 is the bottom end surface of the bracket 2, and the first support rod 1101 and the second support rod 1102 are respectively arranged on both sides of the horizontal section of the bracket 2, and the distance between the first support rod 1101 and the second support rod 1102 is greater than the width value of the horizontal section of the bracket 2.

[0043] like Figure 8 As shown, the eccentric wheel 8 includes an annular portion 801 and a protrusion 802 that are integrally formed. The output shaft of the motor is fixedly connected to the inner ring of the annular portion 801. A plurality of third notches 22 are provided on the outer periphery of the annular portion 801, and the external threaded bearing 9 is provided on the protrusion 802.

[0044] Operation principle: After the device is installed, start the motor, the motor drives the eccentric wheel 8 to rotate, and the external threaded bearing 9 on the eccentric wheel 8 rotates synchronously. Since the external threaded bearing 9 is arranged in the slide groove 6 on the moving block 5, the external threaded bearing 9 will move along the length direction of the slide groove 6, and then drive the moving block 5 to move along the length direction of the guide rail 3, thereby converting the circular motion driven by the motor into a linear reciprocating motion of the moving block 5. During the rotation of the eccentric wheel 8, since the sensor piece 20 is fixedly installed at the bottom of the eccentric wheel 8, the sensor controls the motor quickly and accurately by detecting the situation of the sensor piece 20, thereby realizing accurate control of the movement of the moving block 5;

[0045] When the moving block 5 moves along the guide rail 3 , the glue storage bin 12 on the pressing block 11 will move synchronously, thereby performing a glue scraping operation on the chips on the glue scraping groove mechanism at the top of the horizontal section of the moving block 5 .

[0046] When it is necessary to disassemble this device, loosen the second bolts 1702 on both sides, remove the two second bolts 1702 from the moving block 5 respectively, and remove the two locking shells 1701. After loosening the second bolts 1702 on both sides, the two connecting parts 13 can be removed. At this time, the moving block 5 and the pressing block 11 can be separated after removing the rotating shaft 21. The structure is simple and the operation is quick. When installing, screw on the rotating shaft 21, the first bolt 14 and the second bolt 1702 in turn.

[0047] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0048] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A new scraping mechanism, comprising a support plate and a bracket mounted on the support plate, characterized in that: The bottom end surface of the bracket is provided with a horizontal guide rail, the bottom end of the guide rail is adapted to be connected with a guide block, and the guide block and the guide rail are slidably matched, the bottom of the guide block is fixedly connected with a horizontal moving block, the length direction of the moving block is perpendicular to the length direction of the guide rail, and a slide groove is provided at the lower part of the moving block, and the slide groove is arranged along the length direction of the moving block; A driving mechanism is fixed to the bottom of the support plate, and an output shaft of the driving mechanism passes through the support plate and is connected to an eccentric wheel. An end of the eccentric wheel close to the outer periphery is fixedly connected to an externally threaded bearing, which extends upward into the slide groove, and the externally threaded bearing and the slide groove are in a clearance fit. A horizontally arranged glue storage plate is provided on the top surface of the bracket, and the length direction of the glue storage plate is consistent with the length direction of the guide rail; a pressing block is connected to one side of the moving block, and the pressing block extends upward to the top of the glue storage plate, and a glue storage bin is provided on the pressing block corresponding to the top of the glue storage plate.

2. A new scraping mechanism according to claim 1, characterized in that: Connecting pieces are provided at both ends of the moving block, and each connecting piece is connected to the corresponding side wall surface of the pressing block through a first bolt; A first through hole is provided at each end of the moving block, and a first notch is provided on the connecting piece corresponding to each first through hole, and each first notch is larger than the corresponding first through hole. A quick locking mechanism is provided in each first notch, and each quick locking mechanism includes a locking shell and a second bolt arranged vertically, each locking shell is arranged at the top of the moving block, and each second bolt passes through the corresponding locking shell and the first through hole in sequence.

3. A new scraping mechanism according to claim 1, characterized in that: The bracket is provided with a fixing block, and a second notch is provided at one end of the fixing block close to the eccentric wheel, and a sensor is provided in the second notch; The driving mechanism includes a motor, and a sensor piece is provided on the motor output shaft corresponding to the bottom of the eccentric wheel, and the outer ring of the sensor piece extends into the second notch.

4. A new scraping mechanism according to claim 2, characterized in that: The pressing block includes a first support rod, a second support rod and a connecting rod formed in one piece, and both ends of the connecting rod are connected to the top of the first support rod and the second support rod respectively; The first support rod and the second support rod are both arranged in an "L" shape, the vertical sections of the first support rod and the second support rod are connected to the movable block through a rotating shaft, the vertical sections of the first support rod and the second support rod are respectively connected to the corresponding connecting parts, and the rubber storage plate is arranged between the horizontal sections of the first support rod and the second support rod.

5. A new scraping mechanism according to claim 4, characterized in that: The bracket is arranged in an "L" shape, the vertical section of the bracket is arranged at one end of the top of the support plate, and the horizontal sections of the bracket are arranged above the support plate at intervals; The bottom end surface of the horizontal section in the bracket is the bottom end surface of the support plate, the first support rod and the second support rod are respectively arranged on both sides of the horizontal section in the bracket, and the distance between the first support rod and the second support rod is greater than the width value of the horizontal section in the bracket.

6. A new scraping mechanism according to claim 3, characterized in that: The eccentric wheel includes an annular portion and a protruding portion that are integrally formed. The output shaft of the motor is fixedly connected to the inner ring of the annular portion. A plurality of third notches are provided on the outer periphery of the annular portion. The externally threaded bearing is provided on the protruding portion.

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