Dispensing device for SMT (Surface Mount Technology) processing

Abstract

The invention belongs to the technical field of SMT patch processing, and particularly relates to an adhesive dispensing device for SMT patch processing, the adhesive dispensing device comprises an adhesive dispensing base, a conveying assembly is arranged on the surface of the adhesive dispensing base, the conveying assembly comprises an L-shaped supporting plate, a laminating plate, an L-shaped connecting plate, a first connecting rod and a material sliding plate, and the adhesive dispensing assembly is arranged on the surface of the L-shaped supporting plate; the SMT patch can be moved to the position below the end of the dispensing pipe, glue liquid can just drop on the dispensing position of the SMT patch conveniently in the dispensing process, dispensing can be automatically conducted on the SMT patch by starting a hydraulic rod, the dispensing efficiency of the SMT patch is improved, conveying and dispensing can be conducted on the SMT patch under the condition that the volume is not changed, and the dispensing efficiency of the SMT patch is improved. And the problem of more or less glue liquid during single dispensing is avoided, and meanwhile, the sealing effect of the optical shaft in the rectangular block can be ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of SMT patch processing, and in particular relates to a glue dispensing device used for SMT patch processing. Background Art

[0002] SMT patch refers to the abbreviation of a series of process flows based on PCB. PCB is printed circuit board, SMT is surface mount technology, and it is the most popular technology and process in the electronic assembly industry. When SMT is processed, it is often necessary to first perform a unified dispensing process on the designated position on the surface of the circuit board to be processed, and then proceed to the subsequent steps. When SMT patch processing and dispensing, a handheld dispensing machine is usually required to perform the dispensing process on the SMT patch;

[0003] Although the process of dispensing SMT patches can be achieved by using a handheld dispensing machine, a slight shaking of the arm during the dispensing process will cause deviation in the chip dispensing position, and the dispensing efficiency of manual dispensing is low.

[0004] Therefore, a dispensing device for SMT patch processing is designed to solve the above problems. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a dispensing device for SMT patch processing, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a glue dispensing device for SMT patch processing, comprising a glue dispensing base;

[0007] The surface of the dispensing base is provided with a conveying assembly, and the conveying assembly includes an L-shaped support plate, a bonding plate, an L-shaped connecting plate, a first connecting rod and a material slide plate;

[0008] The surface of the L-shaped support plate is provided with a glue dispensing assembly, and the glue dispensing assembly includes a material barrel, a rectangular block, an optical axis, a first positioning ring, a second positioning ring, a convex block, a frame-type card plate, a first U-shaped card block, a second connecting rod, a third pin shaft, a guide slide bar, a second U-shaped card block, a top plate and a spring;

[0009] An adjustment component is arranged inside the optical axis, and the adjustment component comprises a rectangular adjustment pressure plate, a bearing and a threaded rod.

[0010] The cam is an L-shaped support plate, and the L-shaped support plate is inserted in the limiting slide groove provided on one side of the first support plate. The end of the output shaft of the hydraulic rod is fixedly connected to the upper surface of the L-shaped support plate, and a bonding plate is provided in the built-in slide groove provided on the bottom surface of the L-shaped support plate. The bonding plate and the inner wall of the built-in slide groove are bonded together. The bonding plate and the L-shaped support plate are slidably connected, and the bottom surface of the bonding plate is fixedly connected to the L-shaped connecting plate, and the bottom surface of the L-shaped connecting plate is fixedly connected to two upper side blocks, and the adjacent sides of the two upper side blocks are fixedly connected to the first shaft pin, and the surface of each of the first shaft pins is sleeved with a first connecting rod, and the first connecting rod is rotatably connected with the upper side block through the first shaft pin.

[0011] As a preferred dispensing device for SMT patch processing of the present invention, a material slide plate is arranged in the square slide groove opened on the upper surface of the dispensing base, the material slide plate and the dispensing base are slidably connected, a second axle pin is inserted into the end of the first connecting rod away from the upper side edge block, one end of the second axle pin is fixedly connected to the lower side edge block, the first connecting rod is rotatably connected to the lower side edge block through the second axle pin, and the bottom surface of the lower side edge block is fixedly connected to the upper surface of the material slide plate.

[0012] As a preferred dispensing device for SMT patch processing of the present invention, a through slide groove connected to the limiting slide groove is opened inside the first support plate, an extension plate is arranged inside the through slide groove, the extension plate and the first support plate are slidably connected, one end of the extension plate is fixedly connected to the surface of the L-shaped connecting plate, a gravity block is arranged below the extension plate, a pull rope is arranged between the gravity block and the extension plate, and the two ends of the pull rope are respectively fixedly connected to the bottom surface of the extension plate and the upper surface of the gravity block.

[0013] As a preferred dispensing device for SMT patch processing of the present invention, a mold block is installed in the mold groove opened on the upper surface of the material slide board, the mold block and the material slide board are slidably connected, a material receiving box is arranged above the mold block, a guide hopper is installed in the through hole opened inside the material receiving box, a plug-in plate is fixedly connected to the bottom surface of the material receiving box, a longitudinal plate is fixedly connected to the upper surface of the material slide board, a plug-in groove is opened on the upper surface of the longitudinal plate, the plug-in plate is plugged into the inside of the plug-in groove, and the plug-in plate and the longitudinal plate are slidably connected.

[0014] As a preferred dispensing device for SMT patch processing of the present invention, a material barrel is installed in the second installation groove opened in the L-shaped support plate, a rectangular block is fixedly connected to the bottom surface of the material barrel, an optical axis is inserted in the through hole opened in the rectangular block, an annular sealing gasket is fixedly sleeved on the surface of the optical axis, the annular sealing gasket is in contact with the inner wall of the through hole, a connecting joint is fixedly inserted in the first material discharge hole opened on the upper surface of the rectangular block, an end of the connecting joint away from the rectangular block is inserted in the bottom surface of the material barrel, the interior of the material barrel is connected with the interior of the rectangular block through the connecting joint, a feeding hole is opened in the interior of the optical axis, a connecting groove connected to the feeding hole is opened at a position of the annular sealing gasket close to the feeding hole, a first positioning ring and a second positioning ring are sleeved on the surface of the optical axis, the rectangular block is located between the first positioning ring and the second positioning ring, a second material discharge hole is opened on the surface of the rectangular block, the second material discharge hole is located on the left side of the first material discharge hole, a dispensing tube is arranged below the optical axis, and the dispensing tube is fixedly inserted in the interior of the second material discharge hole.

[0015] As a preferred dispensing device for SMT patch processing of the present invention, a top plate is provided on the side of the first positioning ring away from the rectangular block, a second U-shaped clamping block is provided between the top plate and the first positioning ring, guide slide bars are respectively inserted into two sliding holes opened on the surface of the second U-shaped clamping block, the guide slide bar and the second U-shaped clamping block are slidably connected, the two ends of the guide slide bar are respectively fixedly connected to the top plate and the side adjacent to the first positioning ring, a spring is provided between the top plate and the second U-shaped clamping block, the two ends of the spring are respectively fixedly connected to the top plate and the second U-shaped clamping block, a protrusion is fixedly connected to the bottom surface of one end of the rectangular block, and two frame-type clamping plates are symmetrically fixedly connected to one side of the protrusion, the The upper surface of the L-shaped connecting plate is fixedly connected to the first U-shaped block, and the interior of the first U-shaped block is rotatably connected to the second connecting rod through an auxiliary shaft pin, and a third pin is inserted into the inner side of one end of the second connecting rod away from the first U-shaped block, and the third pin is fixedly connected to the second connecting rod, and both ends of the third pin are respectively inserted into the interiors of the two frame-type card plates, and the third pin is slidably connected to the two frame-type card plates, and a clamping groove is provided on the bottom surface of the second U-shaped block, and the second U-shaped block is located between the two frame-type card plates, and one end of the second connecting rod is located inside the second U-shaped block, and the third pin is inserted in the inside of the clamping groove, and the third pin is slidably connected to the second U-shaped block.

[0016] As a preferred dispensing device for SMT patch processing of the present invention, an anti-rotation groove is symmetrically opened inside one end of the rectangular block, and two anti-rotation blocks are symmetrically fixedly connected to the surface of the optical axis. The anti-rotation blocks are inserted into the anti-rotation groove and are slidably connected to the rectangular block.

[0017] As a preferred dispensing device for SMT patch processing of the present invention, a transparent connecting tube is fixedly inserted on the surface of the material barrel, and the transparent connecting tube is connected to the interior of the material barrel.

[0018] As a preferred dispensing device for SMT patch processing of the present invention, a rectangular adjusting pressure plate is inserted in the rectangular adjusting slot opened inside the optical axis, the rectangular adjusting slot is connected to the inside of the feed hole, a rectangular sealing gasket is fixedly connected to the surface of the rectangular adjusting pressure plate, the rectangular adjusting pressure plate is sealingly and slidingly connected to the optical axis through the rectangular sealing gasket, a threaded hole connected to the rectangular adjusting slot is opened at the end of the optical axis, a threaded rod is inserted in the threaded hole, the threaded rod is threadedly connected to the optical axis, a bearing is installed at one end of the rectangular adjusting pressure plate, one end of the threaded rod is inserted in the bearing, the threaded rod is rotatably connected to the rectangular adjusting pressure plate through the bearing, an annular thin sheet is fixedly sleeved on the surface of the threaded rod, and a scale is fixedly connected to one end of the optical axis.

[0019] Compared with the prior art, the invention has the following beneficial effects: the invention has a scientific and reasonable structure and is safe and convenient to use:

[0020] 1. A conveying assembly is provided. The operation of the hydraulic rod can make the L-shaped support plate slide vertically inside the limiting slide. When the L-shaped support plate moves downward, the L-shaped connecting plate is pulled to move synchronously under the action of the gravity of the gravity block, so that the material slide plate slides inside the square slide, so as to drive the SMT patch inside the mold block to move synchronously until the end of the material slide plate abuts against the inner wall of the square slide, which is conducive to moving the dispensing position of the SMT patch to the bottom of the dispensing tube end, so that the glue liquid can drip exactly at the dispensing position of the SMT patch during the dispensing process. The SMT patch can be automatically dispensed by starting the hydraulic rod, thereby improving the efficiency of SMT patch dispensing;

[0021] By using an extension plate, a gravity block and a pull rope, the laminating plate and the inner wall bottom surface of the built-in slide are fitted together. When the L-shaped support plate moves downward, the gravity of the gravity block pulls the L-shaped connecting plate to move synchronously, so that after the SMT patch is moved to a suitable position, the glue will drip automatically.

[0022] 2. A glue dispensing assembly is provided. When the hydraulic rod drives the L-shaped support plate to move continuously, the L-shaped connecting plate cannot continue to move under the support of the first connecting rod, and the bonding plate can slide inside the built-in slide groove, and the second connecting rod rotates inside the first U-shaped card block, driving the third pin shaft to slide inside the frame-type card plate. During the movement, the third pin shaft drives the second U-shaped card block to move, so that the first positioning ring moves synchronously, so that the optical axis slides inside the through hole. When the second positioning ring fits with one end of the rectangular block, the feed hole opened inside the optical axis moves to the position of the second feed hole, and the glue inside the feed hole flows along the inside of the glue dispensing tube and flows out. The SMT patch is delivered and glued without changing the volume, avoiding the problem of too much or too little glue, and ensuring the effect of SMT patch processing and glue dispensing.

[0023] By using the spring, the second U-shaped clamping block, the frame-shaped clamping plate, the guide slide rod and the third pin shaft, when the glue liquid in the material barrel falls into the inside of the feeding hole, the optical axis drives the glue liquid in the feeding hole to move to the position of the second discharge hole. After the second positioning ring and the rectangular block are fitted, the optical axis cannot move. With the movement of the L-shaped support plate, the second U-shaped clamping block compresses the spring. At this time, the feeding hole can stay at a position close to the second discharge hole, so that the glue liquid in the feeding hole can all flow out, avoiding the problem of glue liquid residue. Since the volume of the feeding hole is constant, the glue liquid dispensed each time is the same.

[0024] Since the rotation of the second connecting rod drives the third pin shaft to slide inside the gravity block, the force applied by the second connecting rod in the process of driving the third pin shaft to rotate is applied to the frame-type card plate, and the frame-type card plate is fixedly connected by the protrusion and the rectangular block, and the force applied by the third pin shaft to the second U-shaped card block is only in the horizontal direction, so that the force applied to the optical axis is only in the horizontal direction, thereby avoiding the problem of poor sealing effect caused by the shaking of the optical axis inside the rectangular block.

[0025] 3. A quantity adjustment component is provided. The rotation of the threaded rod can drive the rectangular quantity adjustment plate to move under the action of the thread. The movement of the rectangular quantity adjustment plate changes the volume of the feed hole. That is, the larger the volume of the feed hole, the more glue can be stored at a time, so that the amount of glue dispensed at a single time increases accordingly. The relationship between the scale of the movement of the annular sheet and the amount of glue dispensed can be calculated through multiple tests, so that the amount of glue dispensed can be quickly adjusted, which is conducive to adjusting the amount of glue dispensed at a single time, and further improving the use effect of the glue dispensing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Sectional view at AA in the middle;

[0029] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0030] Figure 4 For the present invention Figure 2 The enlarged view of point B in the middle;

[0031] Figure 5 It is a schematic structural diagram of the first support plate and the glue dispensing base in the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the L-shaped support plate and the material barrel in the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the L-shaped connecting plate and the extension plate in the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the frame-type card plate and the second connecting rod in the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the second U-shaped block and the guide slide bar in the present invention;

[0036] Fig.10 It is a schematic diagram of the structure of the rectangular adjusting pressure plate and the rectangular sealing gasket in the present invention;

[0037] Fig.11 It is a structural schematic diagram of the guide bucket and the material receiving box in the present invention;

[0038] In the figure:

[0039] 1. Glue dispensing base; 2. Conveying assembly; 21. First support plate; 22. Hydraulic rod; 23. Limiting slide; 24. Built-in slide; 25. L-shaped support plate; 26. Laminating plate; 27. L-shaped connecting plate; 28. Upper side block; 29. ​​First axle pin; 210. First connecting rod; 211. Second axle pin; 212. Lower side block; 213. Material slide plate; 214. Extension plate; 215. Gravity block; 216. Pull rope; 217. Through slide; 218. Square slide; 219. Mold slot; 220. Mold block; 221. Material receiving box; 222. Guide bucket; 223. Vertical plate; 224. Plug-in slot; 225. Plug-in plate; 3. Glue dispensing assembly; 31. Material barrel; 32. Transparent connecting pipe; 33. Connecting joint; 34 , rectangular block; 35, first feed hole; 36, second feed hole; 37, through hole; 38, annular gasket; 39, optical axis; 310, first positioning ring; 311, second positioning ring; 312, feed hole; 313, dispensing tube; 314, bump; 315, frame-type card plate; 316, first U-shaped card block; 317, second connecting rod; 318, third pin shaft; 319, anti-rotation groove; 320, guide slide bar; 321, second U-shaped card block; 322, clamping groove; 323, top plate; 324, spring; 325, anti-rotation block; 4, adjustment component; 41, rectangular adjustment pressure plate; 42, rectangular gasket; 43, bearing; 44, annular sheet; 45, threaded rod; 46, scale; 47, rectangular adjustment slide groove; 48, threaded hole. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example: Figure 1-Figure 11 As shown, the present invention provides a technical solution.

[0042] A glue dispensing device for SMT patch processing, comprising a glue dispensing base 1;

[0043] The surface of the dispensing base 1 is provided with a conveying assembly 2, which includes an L-shaped support plate 25, a laminating plate 26, an L-shaped connecting plate 27, a first connecting rod 210 and a material slide plate 213;

[0044] The surface of the L-shaped support plate 25 is provided with a dispensing assembly 3, which includes a material barrel 31, a rectangular block 34, an optical axis 39, a first positioning ring 310, a second positioning ring 311, a protrusion 314, a frame-type clamping plate 315, a first U-shaped clamping block 316, a second connecting rod 317, a third pin shaft 318, a guide slide rod 320, a second U-shaped clamping block 321, a top plate 323 and a spring 324;

[0045] An adjustment component 4 is disposed inside the optical axis 39 . The adjustment component 4 includes a rectangular adjustment pressure plate 41 , a bearing 43 and a threaded rod 45 .

[0046] The upper surface of the dispensing base 1 is fixedly connected with a first support plate 21, a hydraulic rod 22 is installed in a first installation groove opened on the upper surface of the first support plate 21, an L-shaped support plate 25 is inserted in a limiting slide groove 23 opened on one side of the first support plate 21, the L-shaped support plate 25 is slidably connected to the first support plate 21, the end of the output shaft of the hydraulic rod 22 is fixedly connected to the upper surface of the L-shaped support plate 25, a bonding plate 26 is arranged in a built-in slide groove 24 opened on the bottom surface of the L-shaped support plate 25, and the bonding plate 26 fits with the inner wall of the built-in slide groove 24, the fitting plate 26 and the L-shaped support plate 25 are slidably connected, the bottom surface of the fitting plate 26 is fixedly connected with an L-shaped connecting plate 27, the bottom surface of the L-shaped connecting plate 27 is fixedly connected with two upper side blocks 28, the adjacent sides of the two upper side blocks 28 are fixedly connected with a first axle pin 29, the surface of each first axle pin 29 is sleeved with a first connecting rod 210, and the first connecting rod 210 is rotatably connected with the upper side block 28 through the first axle pin 29.

[0047] A material slide 213 is arranged in the square slide groove 218 opened on the upper surface of the glue dispensing base 1. The material slide 213 and the glue dispensing base 1 are slidably connected. A second axle pin 211 is inserted into the end of the first connecting rod 210 away from the upper side block 28. One end of the second axle pin 211 is fixedly connected to the lower side block 212. The first connecting rod 210 is rotatably connected to the lower side block 212 through the second axle pin 211, and the bottom surface of the lower side block 212 is fixedly connected to the upper surface of the material slide 213.

[0048] A through slide groove 217 connected to the limiting slide groove 23 is provided inside the first support plate 21, and an extension plate 214 is provided inside the through slide groove 217. The extension plate 214 is slidably connected to the first support plate 21, and one end of the extension plate 214 is fixedly connected to the surface of the L-shaped connecting plate 27. A gravity block 215 is provided below the extension plate 214, and a pull rope 216 is provided between the gravity block 215 and the extension plate 214. The two ends of the pull rope 216 are respectively fixedly connected to the bottom surface of the extension plate 214 and the upper surface of the gravity block 215.

[0049] A mold block 220 is installed in the mold groove 219 opened on the upper surface of the material slide plate 213, and the mold block 220 and the material slide plate 213 are slidably connected. A material receiving box 221 is arranged above the mold block 220, and a guide bucket 222 is installed in the through hole opened inside the material receiving box 221. A plug-in plate 225 is fixedly connected to the bottom surface of the material receiving box 221, and a longitudinal plate 223 is fixedly connected to the upper surface of the material slide plate 213. A plug-in groove 224 is opened on the upper surface of the longitudinal plate 223, and the plug-in plate 225 is inserted inside the plug-in groove 224, and the plug-in plate 225 and the longitudinal plate 223 are slidably connected.

[0050] A material barrel 31 is installed in the second installation groove opened in the L-shaped support plate 25, and a rectangular block 34 is fixedly connected to the bottom surface of the material barrel 31. An optical axis 39 is inserted in the through hole 37 opened in the rectangular block 34, and an annular sealing gasket 38 is fixedly sleeved on the surface of the optical axis 39. The annular sealing gasket 38 fits the inner wall of the through hole 37. A connecting joint 33 is fixedly inserted in the first discharge hole 35 opened on the upper surface of the rectangular block 34. The end of the connecting joint 33 away from the rectangular block 34 is inserted in the bottom surface of the material barrel 31. The interior of the material barrel 31 is connected by the connecting joint 33 and the rectangular block 34. The interior is connected, a feed hole 312 is opened inside the optical axis 39, a connecting groove connected to the feed hole 312 is opened at a position of the annular sealing gasket 38 near the feed hole 312, a first positioning ring 310 and a second positioning ring 311 are sleeved on the surface of the optical axis 39, the rectangular block 34 is located between the first positioning ring 310 and the second positioning ring 311, a second feed hole 36 is opened on the surface of the rectangular block 34, the second feed hole 36 is located on the left side of the first feed hole 35, and a glue dispensing tube 313 is arranged below the optical axis 39, and the glue dispensing tube 313 is fixedly inserted in the second feed hole 36.

[0051] A top plate 323 is provided on the side of the first positioning ring 310 away from the rectangular block 34, a second U-shaped block 321 is provided between the top plate 323 and the first positioning ring 310, guide slide bars 320 are respectively inserted into the two sliding holes opened on the surface of the second U-shaped block 321, the guide slide bar 320 and the second U-shaped block 321 are slidably connected, the two ends of the guide slide bar 320 are respectively fixedly connected to the top plate 323 and the side adjacent to the first positioning ring 310, a spring 324 is provided between the top plate 323 and the second U-shaped block 321, the two ends of the spring 324 are respectively fixedly connected to the top plate 323 and the second U-shaped block 321, a protrusion 314 is fixedly connected to the bottom surface of one end of the rectangular block 34, and two frame-type card plates 315 are symmetrically fixedly connected to one side of the protrusion 314, and the upper surface of the L-shaped connecting plate 27 is fixedly connected A first U-shaped card block 316 is connected, and the interior of the first U-shaped card block 316 is rotatably connected to the second connecting rod 317 through an auxiliary shaft pin. A third pin shaft 318 is inserted into the inner side of one end of the second connecting rod 317 away from the first U-shaped card block 316, and the third pin shaft 318 is fixedly connected to the second connecting rod 317. The two ends of the third pin shaft 318 are respectively inserted into the interior of the two frame-type card plates 315, and the third pin shaft 318 and the two frame-type card plates 315 are slidably connected. A clamping groove 322 is provided on the bottom surface of the second U-shaped card block 321, and the second U-shaped card block 321 is located between the two frame-type card plates 315, and one end of the second connecting rod 317 is located inside the second U-shaped card block 321, and the third pin shaft 318 is inserted into the interior of the clamping groove 322, and the third pin shaft 318 and the second U-shaped card block 321 are slidably connected.

[0052] An anti-rotation groove 319 is symmetrically opened inside one end of the rectangular block 34 , and two anti-rotation blocks 325 are symmetrically fixedly connected to the surface of the optical axis 39 . The anti-rotation blocks 325 are inserted into the anti-rotation groove 319 and are slidably connected to the rectangular block 34 .

[0053] A transparent communicating tube 32 is fixedly inserted into the surface of the material barrel 31 , and the transparent communicating tube 32 is connected to the interior of the material barrel 31 .

[0054] A rectangular adjusting plate 41 is inserted into a rectangular adjusting groove 47 opened inside the optical axis 39, the rectangular adjusting groove 47 is connected to the inside of the feeding hole 312, a rectangular sealing gasket 42 is fixedly connected to the surface of the rectangular adjusting plate 41, the rectangular adjusting plate 41 is sealingly and slidably connected to the optical axis 39 through the rectangular sealing gasket 42, a threaded hole 48 connected to the rectangular adjusting groove 47 is opened at the end of the optical axis 39, a threaded rod 45 is inserted inside the threaded hole 48, the threaded rod 45 is threadedly connected to the optical axis 39, a bearing 43 is installed at one end of the rectangular adjusting plate 41, one end of the threaded rod 45 is inserted inside the bearing 43, the threaded rod 45 is rotatably connected to the rectangular adjusting plate 41 through the bearing 43, an annular sheet 44 is fixedly sleeved on the surface of the threaded rod 45, and a scale 46 is fixedly connected to one end of the optical axis 39.

[0055] Working principle: When using the dispensing device to dispense glue to the SMT patch, replace the mold block 220 corresponding to its shape according to the shape of the SMT patch, and insert the mold block 220 into the mold groove 219, so that when the SMT patch is placed in the groove inside the mold block 220, the dispensing tip of the guide bucket 222 is just above the dispensing position of the SMT patch, add appropriate dispensing liquid to the inside of the material barrel 31, and according to the principle of communicating vessels, observe the transparent communicating tube 32 to know the height of the liquid level inside the material barrel 31, operate the controller to start the hydraulic rod 22, and the operation of the hydraulic rod 22 can make the L-shaped support plate 25 slide vertically inside the limiting slide 23. Since the extension plate 214 is connected to the gravity block 215 through the pull rope 216, the bonding plate 26 and the built-in slide The inner wall bottom surface of the L-shaped support plate 24 is in contact with each other. When the L-shaped support plate 25 moves downward, the L-shaped connecting plate 27 is pulled to move synchronously under the action of the gravity of the gravity block 215. Due to the inclined setting of the first connecting rod 210, the movement of the L-shaped connecting plate 27 drives the material slide plate 213 to slide inside the square slide groove 218 through the first connecting rod 210, thereby driving the SMT patch inside the mold block 220 to move synchronously until the end of the material slide plate 213 abuts against the inner wall of the square slide groove 218. At this time, the material slide plate 213 cannot move further, and the dispensing position of the SMT patch is located directly below the end of the dispensing tube 313, which is conducive to moving the dispensing position of the SMT patch to below the end of the dispensing tube 313, so that the glue liquid can drip exactly at the dispensing position of the SMT patch during the dispensing process.

[0056] At the same time, in the process of conveying the SMT patch to the appropriate position, since the built-in slide groove 24 is a T-shaped structure, the laminating plate 26 and the inner wall bottom surface of the built-in slide groove 24 are always in contact with each other, and the distance between the bottom surface of the L-shaped connecting plate 27 and the bottom surface of the L-shaped supporting plate 25 remains unchanged. At this time, the first positioning ring 310 and one side of the rectangular block 34 are in contact with each other, and the connecting joint 33 and the inside of the feeding hole 312 are connected. The glue in the material barrel 31 falls into the inside of the feeding hole 312 along the inside of the connecting joint 33 for storage.

[0057] When the hydraulic rod 22 drives the L-shaped support plate 25 to continue to move, since one end of the material slide plate 213 is against the inner wall of the square slide groove 218, the material slide plate 213 cannot move. Under the support of the first connecting rod 210, the L-shaped connecting plate 27 cannot continue to move. As the L-shaped support plate 25 continues to move downward, the fitting plate 26 can slide inside the built-in slide groove 24, and the second connecting rod 317 rotates inside the first U-shaped block 316. During the rotation, the second connecting rod 317 drives the third pin shaft 318 to slide inside the frame-shaped card plate 315. Since the third pin shaft 318 is inserted into the inside of the card slot 322, the third pin shaft 318 drives the second U-shaped block 321 to move during the movement. The second U-shaped block 321 moves on the guide slide The sliding surface of the rod 320 squeezes the spring 324 and drives the top plate 323 to move. The movement of the top plate 323 drives the first positioning ring 310 to move synchronously through the guide slide bar 320, so that the optical axis 39 slides inside the through hole 37. The setting of the annular sealing gasket 38 can ensure the sealing of the connection between the optical axis 39 and the rectangular block 34 to avoid the problem of glue leakage. The movement of the optical axis 39 drives the anti-rotation block 325 to slide inside the anti-rotation groove 319 to avoid the problem that the optical axis 39 rotates and causes the feeding hole 312 to be unable to correspond to the position of the second unloading hole 36. During the continuous descent of the L-shaped support plate 25, the optical axis 39 continues to slide inside the through hole 37 until the second positioning ring 311 fits with one end of the rectangular block 34. When the feed hole 312 opened inside the optical axis 39 moves to the position of the second discharge hole 36, the glue inside the feed hole 312 flows along the inside of the glue dispensing tube 313 and flows out. The through opening of the second discharge hole 36 allows the glue inside the feed hole 312 to flow into the inside of the glue dispensing tube 313 to avoid the glue being unable to flow due to air pressure problems. At this time, the L-shaped support plate 25 continues to move, so that the third pin shaft 318 continues to slide inside the frame-type card plate 315, thereby driving the second U-shaped card block 321 to continue to move. Since the second positioning ring 311 is in contact with one end of the rectangular block 34, the optical axis 39 cannot move at this time, so that the second U-shaped card block 321 squeezes the spring 324 when it moves. 4 is continuously compressed until the output shaft of the hydraulic rod 22 reaches the maximum length and then starts to move in the opposite direction. During the process of the hydraulic rod 22 driving the L-shaped support plate 25 to move upward, the position of the L-shaped connecting plate 27 does not change under the action of the gravity of the gravity block 215, and the movement of the L-shaped support plate 25 can make the optical axis 39 slide inside the rectangular block 34 until the feeding hole 312 moves to the position of the connecting joint 33. At this time, the bonding plate 26 and the inner wall of the built-in slide groove 24 are bonded, thereby driving the L-shaped connecting plate 27 to move. The movement of the L-shaped connecting plate 27 can drive the material slide plate 213 to move inside the square slide groove 218, so as to facilitate the re-insertion of the SMT patch to be dispensed. Since the hydraulic rod 22 runs once, its output shaft reciprocates once,When the glue in the material barrel 31 falls into the feed hole 312, the optical axis 39 drives the glue in the feed hole 312 to move to the position of the second feed hole 36. After the second positioning ring 311 and the rectangular block 34 are fitted, the optical axis 39 cannot move. As the L-shaped support plate 25 moves, the second U-shaped block 321 compresses the spring 324. At this time, the feed hole 312 can stay at a position close to the second feed hole 36, so that all the glue in the feed hole 312 can flow out, avoiding the problem of glue residue. Since the volume of the feed hole 312 is constant, the glue dispensed each time is the same. The SMT patch is transported and dispensed without changing the volume, avoiding the problem of too much or too little glue, thereby ensuring the effect of SMT patch processing and dispensing.

[0058] In the process of dispensing glue to the SMT patch, the dispensing tube 313 passes through the guide hopper 222. The upper end opening of the guide hopper 222 is larger and the bottom is conical, so as to guide the dispensing tube 313 and improve the accuracy of the dispensing position of the SMT patch;

[0059] Since the rotation of the second joint rod 317 drives the third pin shaft 318 to slide inside the gravity block 215, the force applied by the second joint rod 317 in the process of driving the third pin shaft 318 to rotate is applied to the frame-shaped card plate 315, and the frame-shaped card plate 315 is fixedly connected to the rectangular block 34 through the protrusion 314, and the force applied by the third pin shaft 318 to the second U-shaped card block 321 is only a horizontal force, so that the force applied to the optical axis 39 is only in the horizontal direction, thereby avoiding the problem of poor sealing effect caused by the shaking of the optical axis 39 inside the rectangular block 34;

[0060] When the single glue dispensing amount needs to be adjusted, the threaded rod 45 is rotated. The rotation of the threaded rod 45 can drive the rectangular adjustment plate 41 to move under the action of the thread. The movement of the rectangular adjustment plate 41 changes the volume of the feed hole 312. That is, the larger the volume of the feed hole 312, the more glue can be stored at a time, so that the single glue dispensing amount increases accordingly; the smaller the volume of the feed hole 312, the less glue can be stored at a time, so that the single glue dispensing amount decreases accordingly. The movement of the threaded rod 45 drives the annular sheet 44 to move synchronously. The relationship between the scale of the movement of the annular sheet 44 and the glue dispensing amount can be calculated through multiple experiments, so that the glue dispensing amount can be quickly adjusted, which is beneficial to adjust the single glue dispensing amount and further improve the use effect of the glue dispensing device.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A glue dispensing device for SMT patch processing, comprising a glue dispensing base (1); Features: A conveying assembly (2) is arranged on the surface of the dispensing base (1), and the conveying assembly (2) comprises an L-shaped support plate (25), a bonding plate (26), an L-shaped connecting plate (27), a first connecting rod (210) and a material slide plate (213); A glue dispensing assembly (3) is arranged on the surface of the L-shaped support plate (25), and the glue dispensing assembly (3) comprises a material barrel (31), a rectangular block (34), an optical axis (39), a first positioning ring (310), a second positioning ring (311), a convex block (314), a frame-shaped clamping plate (315), a first U-shaped clamping block (316), a second connecting rod (317), a third pin shaft (318), a guide sliding rod (320), a second U-shaped clamping block (321), a top plate (323) and a spring (324); An adjustment component (4) is arranged inside the optical axis (39), and the adjustment component (4) comprises a rectangular adjustment pressure plate (41), a bearing (43) and a threaded rod (45).

2. The dispensing device for SMT patch processing according to claim 1, characterized in that: The upper surface of the dispensing base (1) is fixedly connected with a first support plate (21), a hydraulic rod (22) is installed in a first installation groove opened on the upper surface of the first support plate (21), an L-shaped support plate (25) is inserted in a limiting slide groove (23) opened on one side of the first support plate (21), the L-shaped support plate (25) and the first support plate (21) are slidably connected, the end of the output shaft of the hydraulic rod (22) is fixedly connected to the upper surface of the L-shaped support plate (25), a bonding plate (26) is arranged in a built-in slide groove (24) opened on the bottom surface of the L-shaped support plate (25), and the bonding plate The laminating plate (26) and the inner wall of the built-in slide groove (24) are fitted together, the laminating plate (26) and the L-shaped support plate (25) are slidably connected, the bottom surface of the laminating plate (26) is fixedly connected with an L-shaped connecting plate (27), the bottom surface of the L-shaped connecting plate (27) is fixedly connected with two upper side clamping blocks (28), the adjacent sides of the two upper side clamping blocks (28) are fixedly connected with a first shaft pin (29), the surface of each of the first shaft pins (29) is sleeved with a first connecting rod (210), and the first connecting rod (210) is rotatably connected through the first shaft pin (29) and the upper side clamping block (28).

3. The glue dispensing device for SMT patch processing according to claim 1, characterized in that: A material slide plate (213) is arranged in a square slide groove (218) provided on the upper surface of the glue dispensing base (1); the material slide plate (213) and the glue dispensing base (1) are slidably connected; a second axle pin (211) is inserted into the end of the first connecting rod (210) away from the upper side block (28); one end of the second axle pin (211) is fixedly connected to the lower side block (212); the first connecting rod (210) is rotatably connected to the lower side block (212) via the second axle pin (211); and the bottom surface of the lower side block (212) is fixedly connected to the upper surface of the material slide plate (213).

4. The glue dispensing device for SMT patch processing according to claim 2, characterized in that: A through slide groove (217) connected to the limiting slide groove (23) is provided inside the first support plate (21), an extension plate (214) is provided inside the through slide groove (217), the extension plate (214) and the first support plate (21) are slidably connected, one end of the extension plate (214) is fixedly connected to the surface of the L-shaped connecting plate (27), a gravity block (215) is provided below the extension plate (214), a pull rope (216) is provided between the gravity block (215) and the extension plate (214), and two ends of the pull rope (216) are respectively fixedly connected to the bottom surface of the extension plate (214) and the upper surface of the gravity block (215).

5. The glue dispensing device for SMT patch processing according to claim 1, characterized in that: A mold block (220) is installed in a mold groove (219) provided on the upper surface of the material slide plate (213); the mold block (220) and the material slide plate (213) are slidably connected; a material receiving box (221) is provided above the mold block (220); a flow guide hopper (222) is installed in a through hole provided inside the material receiving box (221); a plug-in plate (225) is fixedly connected to the bottom surface of the material receiving box (221); a longitudinal plate (223) is fixedly connected to the upper surface of the material slide plate (213); a plug-in groove (224) is provided on the upper surface of the longitudinal plate (223); the plug-in plate (225) is plugged into the plug-in groove (224); and the plug-in plate (225) and the longitudinal plate (223) are slidably connected.

6. The dispensing device for SMT patch processing according to claim 1, characterized in that: A material barrel (31) is installed in the second installation groove opened inside the L-shaped support plate (25), and a rectangular block (34) is fixedly connected to the bottom surface of the material barrel (31). An optical axis (39) is inserted into a through hole (37) opened inside the rectangular block (34), and an annular sealing gasket (38) is fixedly sleeved on the surface of the optical axis (39). The annular sealing gasket (38) and the inner wall of the through hole (37) are in contact with each other. A connecting joint (33) is fixedly inserted into a first material discharge hole (35) opened on the upper surface of the rectangular block (34), and one end of the connecting joint (33) away from the rectangular block (34) is inserted into the bottom surface of the material barrel (31). The interior of the material barrel (31) is connected through the connecting joint (33) and the rectangular block (34). The interior of the optical axis (39) is connected, a material feeding hole (312) is provided inside the optical axis (39), a connecting groove connected to the material feeding hole (312) is provided on the annular sealing gasket (38) at a position close to the material feeding hole (312), a first positioning ring (310) and a second positioning ring (311) are sleeved on the surface of the optical axis (39), the rectangular block (34) is located between the first positioning ring (310) and the second positioning ring (311), a second material discharge hole (36) is provided on the surface of the rectangular block (34), the second material discharge hole (36) is located on the left side of the first material discharge hole (35), and a dispensing tube (313) is provided below the optical axis (39), and the dispensing tube (313) is fixedly inserted in the interior of the second material discharge hole (36).

7. The glue dispensing device for SMT patch processing according to claim 1, characterized in that: A top plate (323) is provided on one side of the first positioning ring (310) away from the rectangular block (34); a second U-shaped block (321) is provided between the top plate (323) and the first positioning ring (310); guide slide bars (320) are respectively inserted into two sliding holes provided on the surface of the second U-shaped block (321); the guide slide bar (320) and the second U-shaped block (321) are slidably connected; two ends of the guide slide bar (320) are respectively connected to the top plate (323) and the second U-shaped block (321); The first positioning ring (310) is fixedly connected to one side adjacent to the first positioning ring (310); a spring (324) is provided between the top plate (323) and the second U-shaped clamping block (321); the two ends of the spring (324) are respectively fixedly connected to the top plate (323) and the second U-shaped clamping block (321); a protrusion (314) is fixedly connected to the bottom surface of one end of the rectangular block (34); two frame-shaped clamping plates (315) are symmetrically fixedly connected to one side of the protrusion (314); the upper surface of the L-shaped connecting plate (27) A first U-shaped card block (316) is fixedly connected, and a second connecting rod (317) is rotatably connected inside the first U-shaped card block (316) through an auxiliary shaft pin. A third pin shaft (318) is inserted inside the end of the second connecting rod (317) away from the first U-shaped card block (316). The third pin shaft (318) and the second connecting rod (317) are fixedly connected. The two ends of the third pin shaft (318) are respectively inserted inside the two frame-shaped card plates (315). The second U-shaped card block (321) is slidably connected to the two frame-shaped card plates (315); a card slot (322) is provided on the bottom surface of the second U-shaped card block (321); the second U-shaped card block (321) is located between the two frame-shaped card plates (315); one end of the second connecting rod (317) is located inside the second U-shaped card block (321); the third pin shaft (318) is inserted into the card slot (322); and the third pin shaft (318) is slidably connected to the second U-shaped card block (321).

8. The glue dispensing device for SMT patch processing according to claim 1, characterized in that: An anti-rotation groove (319) is symmetrically provided inside one end of the rectangular block (34), and two anti-rotation blocks (325) are symmetrically fixedly connected to the surface of the optical axis (39); the anti-rotation blocks (325) are inserted into the anti-rotation groove (319) and are slidably connected to the rectangular block (34).

9. The glue dispensing device for SMT patch processing according to claim 1, characterized in that: A transparent communicating tube (32) is fixedly inserted into the surface of the material barrel (31), and the transparent communicating tube (32) is connected to the interior of the material barrel (31).

10. The glue dispensing device for SMT patch processing according to claim 1, characterized in that: A rectangular adjusting pressure plate (41) is inserted into a rectangular adjusting slot (47) provided inside the optical axis (39); the rectangular adjusting slot (47) is connected to the inside of the feeding hole (312); a rectangular sealing gasket (42) is fixedly connected to the surface of the rectangular adjusting pressure plate (41); the rectangular adjusting pressure plate (41) is sealingly and slidably connected to the optical axis (39) via the rectangular sealing gasket (42); a threaded hole (48) connected to the rectangular adjusting slot (47) is provided at the end of the optical axis (39); A threaded rod (45) is inserted into the interior of the groove hole (48), and the threaded rod (45) and the optical axis (39) are threadedly connected. A bearing (43) is installed at one end of the rectangular adjustment pressure plate (41), and one end of the threaded rod (45) is inserted into the interior of the bearing (43). The threaded rod (45) is rotatably connected to the rectangular adjustment pressure plate (41) through the bearing (43). An annular thin sheet (44) is fixedly sleeved on the surface of the threaded rod (45), and a scale (46) is fixedly connected to one end of the optical axis (39).

Images