Lifting type vibration-free screw feeder and using method thereof

Abstract

The invention discloses a lifting type vibration-free screw feeding machine and a using method thereof, and relates to the technical field of screw sequencing, the lifting type vibration-free screw feeding machine comprises a rack, a lifting mechanism, a material blocking mechanism, a guiding mechanism and a discharging mechanism, the lifting mechanism comprises a fixing disc and a lifting disc, a material taking groove is formed in the upper side of the lifting disc, and the material blocking mechanism is arranged in the material taking groove; a connecting groove matched with the material taking groove is formed in the upper side of the fixing disc, connecting openings are formed in the connecting position of the fixing disc and the guide mechanism, the guide mechanism comprises a first guide rail and a second guide rail, one end of the first guide rail and one end of the second guide rail are in lap joint with the corresponding connecting openings, and the other end of the first guide rail and one end of the second guide rail are in lap joint with the corresponding connecting openings. The interval between the first guide rail and the second guide rail is matched with the width of the connecting groove, and the surface height of the first guide rail and the surface height of the second guide rail are 0.05 mm lower than the tangent point position of the arc face of the fixing disc. According to the invention, the screw sorting quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of screw sorting, and in particular to a lifting type vibration-free screw feeder and a use method thereof. Background Art

[0002] With the gradual development of the new energy vehicle industry, a large number of controllers containing circuit boards are used, and the circuit boards are usually screwed to the housing. In order to avoid short circuits and failures, the requirements for screw dust or debris control have become more prominent. The screw feeder is required to have clean characteristics to avoid debris and dust caused by screw vibration and mutual friction as much as possible. The vibration-free screw sorting mechanism can solve this problem well, and the market supply demand is also increasing.

[0003] The existing screw sorting mechanisms mainly include vibration plate screw feeding, step type screw feeding and non-vibration lifting plate screw feeding. Among them, the vibration lifting plate screw feeding is gentler than the other two feeding methods, and does not require high-frequency vibration for alignment, thus avoiding the wear caused by mutual friction between screws and improving the quality of the finished product.

[0004] The existing vibration-free lifting plate is prone to nail jamming after docking because the actual surface height of the guide rail is higher than the front arc of the lifting plate. At the same time, when a large number of screws are put in, the impurities they carry will also cover the surface of the guide rail. Excessive accumulation will also cause friction loss during the movement of the screws, reducing their surface quality. Summary of the invention

[0005] The object of the present invention is to provide a lifting type vibration-free screw feeder and a method of using the same to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a lifting type vibration-free screw feeder, comprising a frame, a lifting mechanism, a blocking mechanism, a guide mechanism and a discharging mechanism, the frame is filled with screws, the lifting mechanism is arranged in the frame, and is used to grab the screws and arrange them, the blocking mechanism is arranged on the lifting mechanism, and is used to block the screws that are not in the correct position, the guide mechanism is arranged in conjunction with the discharging end of the lifting mechanism, and is used to guide the discharging of the sorted screws, and the discharging mechanism is arranged on the discharging side of the guide mechanism, and is used to discharge the screws one by one.

[0007] According to the above technical solution, the lifting mechanism includes a fixed plate and a lifting plate. A material feeding groove is provided on the upper side of the lifting plate to accommodate the rod body of the screw. Swing arms are hinged on both sides of the lifting plate. The other end of the swing arm is coaxially installed with the fixed plate. A connecting groove is provided on the upper side of the fixed plate to cooperate with the material feeding groove. A connecting port is provided at the connection between the fixed plate and the guide mechanism.

[0008] According to the above technical solution, the guiding mechanism includes guide rail one and guide rail two, one end of guide rail one and guide rail two are overlapped on the corresponding connecting port, the interval between guide rail one and guide rail two matches the width of the connecting groove, and the surface height of guide rail one and guide rail two is 0.05 mm lower than the tangent point position of the arc surface of the fixed disk.

[0009] According to the above technical solution, the distance between guide rail 1 and guide rail 2 is adjustable and is set to be larger than the screw shaft part but smaller than the diameter of the screw nut part.

[0010] According to the above technical solution, a cover plate is mounted on the upper side of guide rail one and guide rail two, and the distance between the cover plate and guide rail one and guide rail two is slightly larger than the height of the nut of the screw, which facilitates the screw to slide down while ensuring that the conveying screws will not stack.

[0011] According to the above technical solution, the material blocking mechanism includes a swing block, which is coaxially arranged with the fixed plate and has a connecting frame fixed on one side, a stopper one is fixed on the lower side of the connecting frame, and the tail end of the stopper one is bent downward, and is used to block the screw that is in the same direction as the material trough but the rod body does not fall into the trough, and a stopper two is relatively fixed on the lower side of the stopper, and the structure of the stopper two is consistent and staggered, and is used to block the screws that are horizontally mounted on the upper surface of the material trough and protrude on the left and right sides after the lifting plate is lifted, and a reset spring connecting shaft is connected to the lower side of the swing block.

[0012] According to the above technical solution, the material blocking mechanism and the lifting plate are in a follow-up relationship, a top plate is provided on the lower side of the swing block, and a driving screw is installed at a corresponding position on the swing arm.

[0013] According to the above technical solution, the discharging mechanism includes a box body, and guide plates are arranged in the box body corresponding to guide rails one and two, guide grooves are provided on the guide plates, and the ends of the guide grooves are arranged as circular grooves. A slider is arranged in the box body, and the slider slides with the guide plate and is provided with a through groove. Cylinder two is connected to one side of the slider, an air valve one is arranged on the upper side of the box body relative to the circular groove, and a material guide pipe is arranged on the lower side of the box body relative to the circular groove.

[0014] According to the above technical solution, the width of the guide groove is sufficient to accommodate the shaft of the screw and is smaller than the diameter of the screw nut. The diameter of the circular groove is larger than the diameter of the screw nut, and the size of the through groove matches the circular groove.

[0015] According to the above technical solution, a filter screen and a pair of baffles are added to the bottom of the material trough, wherein the filter screen corresponds to the short slot of the material trough, the baffles are arranged at intervals in the long slot of the material trough and one of them is connected to the end of the filter screen, and a force sensing module is arranged on the opposite surface of the baffle.

[0016] According to the above technical solution, a slide rail is provided on the upper side of block one, a slide plate is provided inside the slide rail, a cylinder three is connected to one side of the slide plate, a notch is provided on the outward side of the slide plate, a rotating rod is provided in the notch, a deflection plate is provided on the rotating rod, air pipe one and air pipe two are provided on the deflection plate, wherein the diameter width of air pipe two is smaller than the diameter width of the screw nut, air pipe one and air pipe two are respectively connected to air pumps, and a visual detection module is provided on the lower side of the deflection plate.

[0017] According to the above technical solution, one end of the rotating rod is sleeved with gear 1, gear 1 is matched and connected with gear 2, and gear 2 is connected with driver 1.

[0018] According to the above technical solution, a thread is arranged on the surface of the second air pipe, a gear three is sleeved on the outer side of the second air pipe, the gear three is matched and connected with the gear four, and the gear four is connected with the driver two.

[0019] According to the above technical solution, a cylinder four is fixed to one side of the block one relative to the air pipe two, a push rod is connected to the driving end of the cylinder four, an intercepting block is provided at one end of the push rod, and the position of the intercepting block is opposite to the material trough and its width is smaller than the width of the material trough.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by setting the height difference between the surface heights of guide rails one and two and the tangent point position of the arc surface of the fixed disk, can achieve seamless connection of guide rails one and two with the fixed disk, while ensuring that the screws can slide smoothly into the guide mechanism without getting stuck to achieve sorting; by providing air pipes one and two, not only can impurities on the surface of the screws be cleaned, but also the screws that have not entered the material trough can be blown away with the help of air flow, and the screws are prevented from bringing additional impurities into the guide mechanism, to assist the visual inspection module, and air pipe two can remove defective screws by switching the suction and blowing mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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: Figure 1 It is a schematic diagram of the whole machine of the screw sorting device of the present invention; Figure 2 It is a partial schematic diagram of the screw sorting device of the present invention; Figure 3 It is a schematic diagram of the connection structure of the lifting mechanism, the material blocking mechanism, the guiding mechanism and the material discharging mechanism of the present invention; Figure 4 The present invention Figure 3 A magnified schematic diagram of area A; Figure 5 It is a structural schematic diagram of the material blocking mechanism of the present invention; Figure 6It is a schematic diagram of the connection structure of the guide mechanism and the discharging mechanism of the present invention; Figure 7 It is a structural schematic diagram of the discharging mechanism of the present invention; Figure 8 It is a schematic diagram of the internal structure of the box of the present invention; Fig. 9 It is a schematic diagram of the material blocking mechanism of Embodiment 3 and Embodiment 4 of the present invention; Fig.10 The present invention Fig. 9 A magnified schematic diagram of area B; Fig.11 It is a schematic diagram of the position of the interception block of the present invention; Fig.12 is a schematic structural diagram of Embodiment 5 of the present invention; In the figure: 1, frame; 2, lifting mechanism; 21, fixed plate; 211, connecting groove; 212, connecting port; 22, lifting plate; 221, material trough; 222, air pressure chamber; 223, main air valve; 23, swing arm; 24, cylinder 1; 25, fixed frame; 26, filter screen; 27, baffle; 3, material blocking mechanism; 31, swing block; 311, top plate; 32, connecting frame; 33, block 1; 34, block 2; 35, reset spring connecting shaft; 36, cylinder 4; 38, interception block; 4, guide mechanism; 41, guide rail 1; 42, guide rail 2; 43 , cover plate; 5, discharging mechanism; 51, box body; 52, guide plate; 521, guide groove; 522, round groove; 53, slider; 531, through groove; 54, cylinder two; 55, air valve one; 56, guide pipe; 6, screw; 70, slide rail; 71, slide plate; 72, cylinder three; 73, rotating rod; 731, gear one; 732, gear two; 733, driver one; 74, deflection plate; 741, air pipe one; 742, air pipe two; 743, thread; 744, gear three; 745, gear four; 746, driver two; 747, recycling box. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1: See also Figure 1-8The present invention provides a technical solution: a lifting type vibration-free screw feeder, comprising a frame 1, a lifting mechanism 2, a blocking mechanism 3, a guide mechanism 4 and a discharging mechanism 5. The frame 1 is filled with screws 6. The lifting mechanism 2 is arranged in the frame 1 to grab the screws 6 and arrange them. The blocking mechanism 3 is arranged on the lifting mechanism 2 to block the screws 6 that are not in the correct position. The guide mechanism 4 is arranged at the discharging end of the lifting mechanism 2 to guide the sorted screws 6 to be discharged. The discharging mechanism 5 is arranged on the discharging side of the guide mechanism 4 to discharge the screws 6 one by one. The lifting mechanism 2 includes a fixed plate 21 and a lifting plate 22. A material taking groove 221 is provided on the upper side of the lifting plate 22 for accommodating the rod of the screw 6. Swing arms 23 are hinged on both sides of the lifting plate 22. The other end of the swing arm 23 is coaxially installed with the fixed plate 21. A connecting groove 211 is provided on the upper side of the fixed plate 21 to match the material taking groove 221. A connecting port 212 is provided at the connection between the fixed plate 21 and the guide mechanism 4. The guide mechanism 4 includes a guide rail 1 41 and a guide rail 2 42. One end of the guide rail 1 41 and the guide rail 2 42 overlap the corresponding connecting port 212. The interval between the guide rail 1 41 and the guide rail 2 42 matches the width of the connecting groove 211. The surface height of the guide rail 1 41 and the guide rail 2 42 is 0.05 mm lower than the tangent point of the arc surface of the fixed disk 21.

[0024] Supplementary explanations based on the above structure are as follows: the spacing between guide rail 1 41 and guide rail 2 42 is adjustable, and is set to be larger than the shaft portion of screw 6, but smaller than the diameter of the nut portion of screw 6, to ensure that screw 6 can pass between guide rail 1 41 and guide rail 2 42 and can slide down sequentially; the height difference design at the connection between guide rail 1 41 and guide rail 2 42 and fixed disk 21 can ensure that there is no gap or reverse step in the process of screw 6 sliding from fixed disk 21 to guide mechanism 4, thereby reducing the possibility of nail jamming.

[0025] Furthermore, the lifting plate 22 is connected to a cylinder 24 , which is fixed on the frame 1 ; the fixed plate 21 is connected to a fixed frame 25 , which is installed on the frame 1 .

[0026] In actual operation, the lifting plate 22 is rotated by the telescopic movement of the cylinder 1 24, and the lifting angle range of the lifting plate 22 is: the horizontal position of the short groove surface section of the material trough 221 is the starting point, and the lifting plate 22 is rotated 60 degrees upward as the end point. The two points are the lifting range for each time, and this range corresponds to the swing of the long groove surface of the material trough 221 from -30 degrees to 30 degrees. During the swinging process, the screw 6 slides from the short groove surface of the material trough 221 to the long groove surface, passes through the connecting groove 211, and then slides to the guide mechanism 4.

[0027] A cover plate 43 is mounted on the upper side of the guide rail 1 41 and the guide rail 2 42. The distance between the cover plate 43 and the guide rail 1 41 and the guide rail 2 42 is slightly larger than the nut height of the screw 6, which facilitates the screw 6 to slide down while ensuring that the conveying screws 6 will not be stacked.

[0028] like Figure 5 As shown, the material blocking mechanism 3 includes a swing block 31, which is coaxially arranged with the fixed plate 21 and has a connecting frame 32 fixed on one side, a block 1 33 is fixed on the lower side of the connecting frame 32, and the tail end of the block 1 33 is bent downward, which is used to block the screw 6 which is in the same direction as the material trough 221 but the rod body does not fall into the groove, and a block 2 34 is relatively fixed on the lower side of the block 1 33. The block 2 34 has the same structure and is staggered, and is used to block the screw 6 which is horizontally mounted on the upper surface of the material trough 221 and protrudes on the left and right sides after the lifting plate 22 is lifted, and a reset spring connecting shaft 35 is connected to the lower side of the swing block 31.

[0029] It should be noted that the material-blocking mechanism 3 and the lifting plate 22 are in a follow-up relationship, specifically, a top plate 311 is provided on the lower side of the swing block 31, and a driving screw is installed at a corresponding position on the swing arm 23. When the swing arm 23 swings with the lifting plate 22, the driving screw will lift the top plate 311, driving the swing block 31 to drive the material-blocking mechanism 3 to rotate as a whole; further, during the follow-up process of the material-blocking mechanism 3, the block 1 33 and the block 2 34 maintain a parallel relationship with the long groove surface of the material trough 221; when the lifting plate 22 falls back, the reset spring connecting shaft 35 resets the material-blocking mechanism 3 through the external tension spring.

[0030] like Figures 6-8 As shown, the discharging mechanism 5 includes a box body 51, and a guide plate 52 is arranged in the box body 51 corresponding to the guide rail 1 41 and the guide rail 2 42. The guide plate 52 is provided with a guide groove 521, and the end of the guide groove 521 is set as a circular groove 522. A slider 53 is arranged in the box body 51, and the slider 53 is slidably matched with the guide plate 52 and is provided with a through groove 531. A cylinder 2 54 is connected to one side of the slider 53, an air valve 1 55 is arranged on the upper side of the box body 51 relative to the circular groove 522, and a material guide pipe 56 is arranged on the lower side of the box body 51 relative to the circular groove 522.

[0031] Supplementary explanations based on the above structure are as follows: the width of the guide groove 521 is sufficient to accommodate the shaft of the screw 6 and is smaller than the diameter of the nut of the screw 6. The diameter of the circular groove 522 is larger than the diameter of the nut of the screw 6. The size of the through groove 531 matches the circular groove 522.

[0032] In actual operation, in the initial state, the through groove 531 is located at the open end of the guide groove 521. When the screw 6 enters the guide groove 521, its nut is hung on the guide groove 521. At this time, the cylinder 2 54 pushes the slider 53, and the through groove 531 drives the screw 6 to move along the guide groove 521 to the circular groove 522. The screw 6 falls into the guide tube 56, and the air valve 1 55 is started to transport the screw 6 to the next process.

[0033] In one embodiment, a spare air valve is provided on the box body 51 for manual adjustment.

[0034] Embodiment 2: Based on the actual example 1, Figure 5 As shown, a filter screen 26 and a pair of baffles 27 are added to the bottom of the material trough 221, wherein the filter screen 26 corresponds to the short slot of the material trough 221, the baffles 27 are arranged at intervals in the long slot of the material trough 221 and one of them is connected to the end of the filter screen 26, and a force sensing module is arranged on the opposite surface of the baffle 27.

[0035] It should be noted that: during the sorting process of the screws 6, if there are defective products in the batch of screws 6 to be sorted, such as the nut is damaged so that the screw 6 as a whole can fall into the feeding trough 221, the defective product will first fall onto the surface of the filter 26, wherein the filter 26 is used to separate the defective products from the impurities falling from above, and during the lifting process, the defective product moves along the inclination direction of the filter 26 to between the two baffles 27, thereby limiting its displacement range and avoiding being stuck in the connecting groove 211. Through repeated lifting, the defective product will hit the surface of the baffle 27 back and forth, and the force signal detected by the force sensing module of the baffle 27 determines whether there is a defective product falling into the feeding trough 221.

[0036] Furthermore, the quality of the screws 6 is evaluated according to the magnitude of the force signal. Specifically, the number of defective products allowed in the same batch of screws 6 is set to a, and the maximum force generated by a defective product colliding with the baffle 27 is set to b. In the process of sorting a batch of screws 6, the sum of the force signals detected by the force sensing module is c. When c is always equal to 0, the quality of this batch of screws 6 is excellent and there are no major defects; if c is greater than 0 and less than b, the quality of this batch of screws 6 is good, and the number of defective products is within the allowable range; if c is greater than or equal to b, the quality of this batch of screws 6 is poor, the number of defective products is too large, and it is necessary to consider additional quality inspection of the screws 6 or changing the batch, and cleaning the material trough 221 at the same time.

[0037] Embodiment 3: Based on the actual example 1, Figures 9-11As shown, a slide rail 70 is arranged on the upper side of the block 33, a slide plate 71 is arranged inside the slide rail 70, a cylinder 3 72 is connected to one side of the slide plate 71, a notch is opened on the outward side of the slide plate 71, a rotating rod 73 is arranged in the notch, a deflection plate 74 is arranged on the rotating rod 73, an air pipe 1 741 and an air pipe 2 742 are arranged on the deflection plate 74, wherein the diameter width of the air pipe 2 742 is smaller than the diameter width of the nut of the screw 6, the air pipe 1 741 and the air pipe 2 742 are respectively connected to air pumps, and a visual detection module is arranged on the lower side of the deflection plate 74.

[0038] Preferably, at least two air pipes 1 741 are provided and are respectively located on both sides of air pipe 2 742 . Air pipe 1 741 is mainly used for cleaning impurities on the groove surface of the material taking groove 221 and the surface of the screw 6 in the blowing mode.

[0039] One end of the rotating rod 73 is sleeved with a gear 1 731, which is matched with a gear 2 732, and the gear 2 732 is connected to a driver 1 733. In actual operation, the driver 1 733 drives the rotating rod 73 to rotate through the gear 2 732 and the gear 1 731, thereby changing the deflection angle of the deflection plate 74, thereby adjusting the outlet angles of the air pipe 1 741 and the air pipe 2 742.

[0040] The surface of the second air pipe 742 is provided with a thread 743, and the outer side of the second air pipe 742 is sleeved with a gear 3 744, which is matched with a gear 4 745, and the gear 4 745 is connected to a driver 2 746. In actual operation, the driver 2 746 drives the second air pipe 742 to rotate through the gear 4 745 and the gear 3 744, thereby controlling the second air pipe 742 to move up and down.

[0041] Furthermore, a cylinder 4 36 is fixed to one side of the block 1 33 relative to the air pipe 2 742, and a push rod is connected to the driving end of the cylinder 4 36, and an intercepting block 38 is provided at one end of the push rod. The position of the intercepting block 38 is opposite to the material trough 221 and the width is smaller than the width of the material trough 221.

[0042] In actual operation, preferably, the size of the notch provided on the slide plate 71 is such that the slide plate 71 will not affect the cylinder 4 36 when it moves. Specifically, during the process of the lifting plate 22 taking materials once, the cylinder 4 36 moves down the interception block 38 to the material taking groove 221. During the process of the screw 6 sliding from the short groove surface to the long groove surface of the material taking groove 221 and being intercepted by the interception block 38, the openings of the air pipe 1 741 and the air pipe 2 742 are deflected to the long groove surface of the material taking groove 221, and the surface of the material taking groove 221 is cleaned by the air flow, so that the screw 6 will not generate excessive friction loss due to impurities covered on the groove surface of the material taking groove 221 during the sliding process, thereby improving the surface quality of the screw 6. After the screw 6 is intercepted by the interception block 38, the openings of the air pipe 1 741 and the air pipe 2 742 are adjusted to the upper side of the screw 6, and the air flow is used to clean the surface of the screw 6. Here, the air pipe 1 741 and the air pipe 2 742 can not only clean the impurities on the surface of the screw 6, but also prevent the screw 6 from bringing additional impurities into the guide mechanism 4, and at the same time, the out-of-order screws 6 that have not entered the material trough 221 are blown away by the air flow; Furthermore, in combination with the visual inspection module, the quality of the nut part of the screw 6 is inspected. The inspection method adopts but is not limited to image recognition. If a defective product is detected, the position of the defective product is locked, the cylinder 3 72 is pushed forward to align the opening of the air pipe 2 742 above the defective product, the air pipe 2 742 moves down to the surface of the defective product, and the corresponding air pump is switched to the suction mode to suck the corresponding defective product, and then the air pipe 2 742 moves up to take the defective product out of the material trough 221, deflect the opening angle, and the air pump is switched to the blowing mode to remove the defective product. The interception block 38 moves up to release the remaining qualified screws 6, thereby ensuring the surface quality of the sorted screws 6.

[0043] Embodiment 4: On the basis of Example 3, Fig. 9 As shown, the diameter width of the air pipe 2 742 is adjusted to be larger than the diameter width of the nut of the screw 6, and the air pump externally connected to the air pipe 2 742 is replaced with an air valve 2, and a delivery hose is provided, and the other end of the delivery hose is connected to a recovery box 747.

[0044] Specifically, when a defective product is detected, the air pipe 742 moves to the top of the defective product and directly sucks the defective product into the recycling box 747 for storage. Compared with Example 3, the trouble of repeated screening is avoided.

[0045] Embodiment 5: On the basis of Example 3, Fig.12 As shown, if there are higher requirements for the surface quality of the screw 6, a plurality of air pressure chambers 222 are spaced apart on the long groove surface of the material trough 221, the air pressure chamber 222 is connected to the main air valve 223, and the air pressure chamber 222 has a built-in pressure sensing module. The distance between the air pressure chambers 222 is sufficient to be blocked by the interception block 38, and each group of air pressure chambers 222 corresponds to a screw 6.

[0046] In actual operation, the air pressure chamber 222 detects the quality of the lower side of the screw 6 nut according to the internal pressure state. Specifically, the corresponding screw 6 is sucked by air. If the lower side of the screw 6 nut is uneven or has quality problems such as cracks, the air pressure chamber 222 cannot detect the negative pressure signal; at the same time, the screw 6 is grasped by the air pipe 2 742, rotated 90 degrees through the air pipe 2 742, and then released. The air pressure chamber 222 detects the lower side of the other side of the screw 6, thereby realizing further quality inspection of the bottom of the screw nut 6. When a defective product is detected, the rejection method of Example 3 is executed.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] 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 lifting type vibration-free screw feeder, comprising a frame (1), a lifting mechanism (2), a material blocking mechanism (3), a guiding mechanism (4) and a material discharging mechanism (5), characterized in that: The frame (1) is filled with screws (6); the lifting mechanism (2) is arranged in the frame (1) and is used to grab the screws (6) and arrange them; the blocking mechanism (3) is arranged on the lifting mechanism (2) and is used to block the screws (6) that are not in the correct position; the guide mechanism (4) is arranged in conjunction with the discharge end of the lifting mechanism (2) and is used to guide the discharge of the arranged screws (6); the discharge mechanism (5) is arranged on the discharge side of the guide mechanism (4) and is used to discharge the screws (6) one by one; The lifting mechanism (2) comprises a fixed plate (21) and a lifting plate (22); a material taking groove (221) is provided on the upper side of the lifting plate (22) for accommodating the rod of the screw (6); swing arms (23) are hingedly connected on both sides of the lifting plate (22); the other end of the swing arm (23) is coaxially mounted with the fixed plate (21); a connecting groove (211) is provided on the upper side of the fixed plate (21) to cooperate with the material taking groove (221); and a connecting port (212) is provided at the connection between the fixed plate (21) and the guide mechanism (4); The guide mechanism (4) comprises a guide rail 1 (41) and a guide rail 2 (42), one end of the guide rail 1 (41) and the guide rail 2 (42) being overlapped on the corresponding connecting port (212), the interval between the guide rail 1 (41) and the guide rail 2 (42) matching the width of the connecting groove (211), and the surface height of the guide rail 1 (41) and the guide rail 2 (42) being 0.05 mm lower than the tangent point position of the arc surface of the fixed plate (21).

2. A lifting type vibration-free screw feeder according to claim 1, characterized in that: The material blocking mechanism (3) comprises a swing block (31), the swing block (31) being coaxially arranged with the fixed plate (21) and having a connecting frame (32) fixed on one side, a stopper (33) being fixed on the lower side of the connecting frame (32), the tail end of the stopper (33) being bent downward and being used to block a screw (6) which is in the same direction as the material taking groove (221) but whose shaft does not fall into the groove, a stopper (34) being relatively fixed on the lower side of the stopper (33), the stopper (34) having the same structure and being staggered and being used to block the screw (6) which is laterally mounted on the upper surface of the material taking groove (221) and protruding on the left and right sides after the lifting plate (22) is lifted, and a return spring connecting shaft (35) is connected on the lower side of the swing block (31).

3. A lifting type vibration-free screw feeder according to claim 2, characterized in that: A slide rail (70) is arranged on the upper side of the block 1 (33), a slide plate (71) is arranged inside the slide rail (70), one side of the slide plate (71) is connected to a cylinder 3 (72), a notch is provided on the outward side of the slide plate (71), a rotating rod (73) is arranged in the notch, a deflection plate (74) is arranged on the rotating rod (73), an air pipe 1 (741) and an air pipe 2 (742) are arranged on the deflection plate (74), wherein the diameter width of the air pipe 2 (742) is smaller than the diameter width of the nut of the screw (6), the air pipe 1 (741) and the air pipe 2 (742) are respectively connected to an air pump, and a visual detection module is arranged on the lower side of the deflection plate (74).

4. A lifting type vibration-free screw feeder according to claim 3, characterized in that: One end of the rotating rod (73) is sleeved with a gear 1 (731), the gear 1 (731) is matched and connected to a gear 2 (732), and the gear 2 (732) is connected to a driver 1 (733).

5. The lifting type vibration-free screw feeder according to claim 4, characterized in that: The surface of the second air pipe (742) is provided with a thread (743), the outer side of the second air pipe (742) is provided with a gear (744), the gear (744) is matched and connected with a gear (745), and the gear (745) is connected with a driver (746).

6. A lifting type vibration-free screw feeder according to claim 5, characterized in that: A cylinder four (36) is fixed to one side of the stopper one (33) relative to the air pipe two (742); a driving end of the cylinder four (36) is connected to a push rod; an intercepting block (38) is provided at one end of the push rod; the intercepting block (38) is located opposite to the material taking trough (221) and has a width smaller than that of the material taking trough (221).

7. The lifting type vibration-free screw feeder according to claim 1, characterized in that: A filter screen (26) and a pair of baffles (27) are arranged at the bottom of the material taking trough (221), wherein the filter screen (26) corresponds to the short slot of the material taking trough (221), the baffles (27) are arranged at intervals in the long slot of the material taking trough (221) and one of them is connected to the end of the filter screen (26), and a force sensing module is arranged on the surface opposite to the baffle (27).

8. The lifting type vibration-free screw feeder according to claim 6, characterized in that: The discharging mechanism (5) comprises a box body (51), wherein a guide plate (52) is arranged in the box body (51) in correspondence with the guide rail 1 (41) and the guide rail 2 (42), wherein a guide groove (521) is provided on the guide plate (52), and the end of the guide groove (521) is arranged as a circular groove (522), wherein a slider (53) is arranged in the box body (51), wherein the slider (53) is slidably matched with the guide plate (52) and is provided with a through groove (531), wherein one side of the slider (53) is connected to a cylinder 2 (54), wherein an air valve 1 (55) is arranged on the upper side of the box body (51) relative to the circular groove (522), and wherein a material guide pipe (56) is arranged on the lower side of the box body (51) relative to the circular groove (522).

9. The lifting type vibration-free screw feeder according to claim 8, characterized in that: The width of the guide groove (521) is sufficient to accommodate the shaft of the screw (6) and is smaller than the diameter width of the nut of the screw (6); the diameter width of the circular groove (522) is larger than the diameter width of the nut of the screw (6); and the size of the through groove (531) matches that of the circular groove (522).

10. A method for using a lifting type vibration-free screw feeder, applicable to the lifting type vibration-free screw feeder according to claim 9, characterized in that: The specific method is as follows: Step 1: The lifting plate (22) is driven to rotate, and the short slot surface section of the material taking slot (221) thereof swings from a horizontal position to a 60-degree angle position; Step 2: During the swinging process, when the screw (6) slides from the short groove surface of the material taking trough (221) to the long groove surface and is intercepted by the interception block (38), the openings of the air pipe 1 (741) and the air pipe 2 (742) are deflected to the long groove surface of the material taking trough (221), and the blowing mode is switched to deliver airflow to the surface of the material taking trough (221); Step 3: After the screw (6) is intercepted by the interception block (38), the openings of the trachea 1 (741) and the trachea 2 (742) are adjusted to the upper side of the screw (6), and airflow is delivered to the surface of the screw (6) through airflow; Step 4: The visual inspection module performs quality inspection on the surface of the screw (6); Step 5: If a defective product is detected, the position of the defective product is locked, the air cylinder 3 (72) is pushed forward to align the opening of the air pipe 2 (742) above the defective product, the air pipe 2 (742) is moved down to the surface of the defective product, the corresponding air pump is switched to the suction mode, the corresponding defective product is sucked, and then the air pipe 2 (742) is moved up to take the defective product out of the material trough (221), the opening angle is deflected, and the air pump is switched to the blowing mode to remove the defective product; Step 6: The interception block (38) moves upward to release the remaining qualified screws (6); Step 7: The qualified screws (6) are moved to the guide mechanism (4) through the connecting groove (211) and finally output by the discharging mechanism (5).

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