Self-tapping screw feeding device

Abstract

The utility model provides a self-tapping screw feeding device which comprises a feeding hopper, a screw arranging assembly, a first driving mechanism and a screw feeding assembly, the screw arranging assembly is connected with the feeding hopper and the screw feeding assembly, the first driving mechanism is fixed on a fixing frame and connected with the screw feeding assembly, and the first driving mechanism can drive the screw feeding assembly to move. According to the automatic screw feeding device, the screw feeding assembly and the screw arranging assembly are arranged to adjust the relative position between the screw feeding assembly and the mounting position and adjust the position between the screw feeding assembly and the screw arranging assembly, the screw arranging assembly can sequentially convey self-tapping screws in the feeding hopper to the screw feeding assembly, the screw feeding assembly can convey the self-tapping screws on the screw arranging assembly to the mounting position, and then automatic screw feeding is achieved; and the working intensity of workers is reduced, and the nail placing quality can be improved.

Description

Technical Field

[0001] The utility model relates to the field of container production equipment, and mainly relates to a self-tapping screw feeding device. Background Art

[0002] In the production of containers, after drilling and expanding the holes in the container wood floor, the wood floor needs to be fixed to the bottom of the container with self-tapping screws. When the wood floor is fixed to the bottom of the container, it is usually done by manually inserting the wood floor self-tapping screws into the holes and tightening the nails. Therefore, the construction workers need to frequently enter and exit the container to bend over to work, which poses a great safety hazard. There are many holes in the container, and the workers are labor-intensive and have high work intensity. At the same time, manual work is accompanied by instability in efficiency and quality. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a self-tapping screw feeding device to reduce the labor intensity of workers.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A self-tapping screw feeding device comprises a fixed frame, a feed hopper, a nail row assembly, a nail feeding assembly and a first driving mechanism; the feed hopper is fixed on the fixed frame and is used to accommodate the self-tapping screws; the nail feeding assembly can transfer the self-tapping screws to an installation position, the nail row assembly connects the feed hopper and the nail feeding assembly and can transfer the self-tapping screws in the feed hopper to the nail feeding assembly in sequence; the first driving mechanism is connected to the fixed frame and is connected to the nail feeding assembly, and the first driving mechanism can drive the nail feeding assembly to move so as to adjust the relative position between the nail feeding assembly and the installation position.

[0006] In some embodiments of the present application, the nail feeding assembly is configured in plurality, and the plurality of nail feeding assemblies are arranged at intervals along the direction in which the first driving mechanism drives the nail feeding assembly to move.

[0007] In some schemes of the present application, the nail feeding assembly includes a transmission channel and a thrust mechanism, the transmission channel connects the nail row assembly and the installation position, and the thrust mechanism is arranged on the transmission channel to drive the self-tapping screw to move on the transmission channel.

[0008] In some schemes of the present application, the transmission channel includes a first conveying conduit, a second conveying conduit and a nail connector, the first end of the first conveying conduit is fixed on the first driving mechanism, the second end of the first conveying conduit is fixedly connected to the nail connector, and the second conveying conduit connects the nail connector with the installation position; the thrust mechanism includes a control valve and an air supply pipe, the control valve and the air supply pipe are both arranged on the nail connector and located between the first conveying conduit and the second conveying conduit, one end of the air supply pipe is connected between the control valve and the second conveying conduit, and the other end is connected to an external air supply source; when the control valve is closed, the gas introduced into the air supply pipe can drive the self-tapping screws on the second conveying conduit to move.

[0009] In some embodiments of the present application, the first driving mechanism drives the nail feeding assembly to move in a linear manner.

[0010] In some schemes of the present application, the first driving mechanism includes a driving motor, a transmission gear, a rack and a connecting piece, the driving motor is fixed on the fixed frame, the transmission gear is fixed on the output shaft of the driving motor, the connecting piece is slidably connected to the fixed frame, the rack is fixed on the connecting piece and meshes with the transmission gear, and the nail feeding assembly is fixed on the connecting piece.

[0011] In some schemes of the present application, the nail row assembly includes a second driving mechanism, a nail lifting plate, a feeding guide groove and a nail dropper; the upper end of the nail lifting plate is placed in the feed hopper and can move up and down relative to the feed hopper, and the top surface of the nail lifting plate is provided with a first guide groove; the second driving mechanism is installed on the feed hopper or the fixed frame and is connected to the lower end of the nail lifting plate, and the second driving mechanism can drive the nail lifting plate to rise and fall; one end of the feeding guide groove is connected to the feed hopper, and the other end extends toward the nail feeding assembly, and the top surface of the feeding guide groove is provided with a second guide groove, and the position of the second guide groove is aligned with the first guide groove; the nail dropper is arranged at one end of the feeding guide groove away from the nail lifting plate, and the nail dropper can control the speed at which the self-tapping screws enter the nail feeding assembly.

[0012] In some solutions of the present application, the top surface of the nail lifting plate is inclined.

[0013] In some solutions of the present application, a vibrator is fixed on the feeding guide trough, and the vibrator can drive the feeding guide trough to vibrate.

[0014] In some schemes of the present application, the nail dropper includes a fixed seat, an elastic member and a telescopic member, the fixed seat is fixed to one end of the feeding guide groove away from the nail lifting plate, the fixed seat is provided with a nail passing channel, one end of the nail passing channel is connected to the second guide groove, and the other end is connected to the nail feeding assembly; one end of the elastic member is fixed to the fixed seat, and the other end extends to the interior of the nail passing channel and can block the self-tapping screw; the telescopic member is connected to the fixed seat, and the telescopic end of the telescopic member can push the elastic member to elastically deform so that the self-tapping screw can pass through the nail passing channel.

[0015] In some schemes of the present application, the direction in which the nail feeding assembly is driven by the first driving mechanism is the first direction, the length direction of the feeding guide groove is the second direction, and the first direction is perpendicular to the second direction; the nail lifting plates are configured in plurality, the plurality of nail lifting plates are spaced apart along the first direction, and the plurality of nail lifting plates are connected to the second driving mechanism; the feeding guide grooves are configured in plurality, the plurality of feeding guide grooves are spaced apart along the first direction, and correspond one-to-one to the positions of the nail lifting plates; the nail droppers are configured in plurality, the plurality of nail droppers correspond one-to-one to the feeding guide grooves; the nail feeding assembly is arranged below the nail droppers, the nail feeding assembly is provided in plurality of groups, and the position of each group of the nail feeding assemblies corresponds one-to-one to the position of the nail droppers.

[0016] In some solutions of the present application, each group of the nail feeding assemblies includes at least two nail feeding assemblies, and the distance between two adjacent nail feeding assemblies in each group of the nail feeding assemblies is equal.

[0017] Beneficial effects: The self-tapping screw feeding device of the present application includes a feed hopper, a nail row assembly, a first driving mechanism and a nail feeding assembly. The nail row assembly connects the feed hopper and the nail feeding assembly. The first driving mechanism is fixed on a fixed frame and connected to the nail feeding assembly. The first driving mechanism can drive the nail feeding assembly to move to adjust the relative position between the nail feeding assembly and the installation position, and adjust the position between the nail feeding assembly and the nail row assembly. The nail row assembly can transfer the self-tapping screws in the feed hopper to the nail feeding assembly in sequence. The nail feeding assembly can transfer the self-tapping screws on the nail row assembly to the installation position, thereby realizing automatic nail placement, reducing the work intensity of workers, and improving the quality of nail placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a self-tapping screw feeding device.

[0019] Figure 2 yes Figure 1 A local enlarged schematic diagram at point A.

[0020] Figure 3 yes Figure 1Schematic cross-section at DD.

[0021] Figure 4 yes Figure 3 A partial enlarged schematic diagram at point B.

[0022] Figure 5 yes Figure 3 A local enlarged schematic diagram at point C.

[0023] Figure 6 It is a schematic diagram of the main structure of a self-tapping screw feeding device.

[0024] Figure 7 It is a right view structural diagram of the self-tapping screw feeding device, in which Figure 6 Sectional view at EE.

[0025] Figure 8 It is a left-side structural schematic diagram of a self-tapping screw feeding device.

[0026] Fig. 9 It is a schematic diagram of the top view of the self-tapping screw feeding device.

[0027] Fig.10 It is a schematic diagram of the structure of a self-tapping screw feeding device viewed from above.

[0028] Explanation of the main component symbols: 11-fixed frame; 12-support seat; 13-linear guide; 2-feed hopper; 3-nail row assembly; 31-second drive mechanism; 32-nail lifting plate; 321-first guide groove; 33-feeding guide groove; 331-second guide groove; 35-vibrator; 34-nail dropper; 341-fixed seat; 342-elastic member; 343-telescopic member; 4-nail feeding assembly; 41-transmission channel; 411-first conveying duct; 412-second conveying duct; 413-nail receiver; 42-thrust mechanism; 421-control valve; 422-air supply pipeline; 5-first drive mechanism; 51-drive motor; 52-transmission gear; 53-rack; 54-connector. DETAILED DESCRIPTION

[0029] The utility model provides a self-tapping screw feeding device. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the production of containers, wooden floors need to be fixed to the bottom surface of the container. Since wooden floors are low in cost, they can be replaced when the container is worn by contacting the wooden floors with the goods or pallets supporting the goods. This makes replacement easy and reduces maintenance costs. When fixing the wooden floors to the bottom surface of the container, it is necessary to first drill a plurality of corresponding holes in the wooden floors and inside the container, then place the self-tapping screws in the corresponding holes, and then perform a tightening process on the self-tapping screws.

[0033] The present application provides a self-tapping screw feeding device, which can automatically place the self-tapping screws in the same posture in the holes, reduce the labor intensity of workers, and improve production efficiency. After the self-tapping screws are placed in the corresponding holes, the self-tapping screws can be tightened by the self-tapping screw fixing mechanism on the production line, or they can be tightened manually.

[0034] See also Figure 1 as well as Figure 6-Figure 10 , wherein the self-tapping screw feeding device of the present application includes a fixed frame 11, a feed hopper 2, a nail row assembly 3, a first driving mechanism 5 and a nail feeding assembly 4. The feed hopper 2 is fixed on the fixed frame 11 and is used to accommodate self-tapping screws. The nail row assembly 3 connects the feed hopper 2 and the nail feeding assembly 4, and is used to transfer the self-tapping screws in the feed hopper 2 to the nail feeding assembly 4 in sequence. The nail feeding assembly 4 is used to transfer the self-tapping screws on the nail row assembly 3 to the installation position (i.e., the holes on the wooden floor). The first driving mechanism 5 is fixed on the fixed frame 11 and connected to the nail feeding assembly 4. The first driving mechanism 5 is used to drive the nail feeding assembly 4 to move. When the first driving mechanism 5 drives the nail feeding assembly 4 to move, the relative position between the nail feeding assembly 4 and the installation position can be adjusted.

[0035] In the above, when working, the self-tapping screws are first placed in the feed hopper 2, and then the self-tapping screws are extracted by the nail row assembly 3 and sequentially transferred to the nail feeding assembly 4, and then the self-tapping screws on the nail row assembly 3 are transferred one by one to the installation position for installing the self-tapping screws by the nail feeding assembly 4. After the self-tapping screws on the nail row assembly 3 are transferred to the nail feeding assembly 4, the first driving mechanism 5 drives the nail feeding assembly 4 to move, so that the output end of the nail feeding assembly 4 corresponds to the installation position, so that the nail feeding assembly 4 can accurately transport the self-tapping screws to the installation position, and then the self-tapping screws are locked by the fixing equipment on the production line, thereby realizing the fixed connection between the wooden floor and the container. Among them, the self-tapping screws only need to be placed in batches in the feed hopper 2 manually, and the self-tapping screw feeding device can be used to realize automatic nail placement, which reduces the work intensity of the workers and can improve the quality of nail placement.

[0036] For example, a plurality of holes are provided on the container wooden floor, and the first driving mechanism 5 drives the nail feeding assembly 4 to move so that the output ends of the nail feeding assembly 4 reach the positions of different holes respectively, so that self-tapping screws are placed in the plurality of holes respectively.

[0037] When using self-tapping screws, the self-tapping screws can be moved to the inside of the container after the wooden floor is laid, or only one end of the nail delivery component 4 away from the nail row component 3 (the nail outlet end) is extended to the inside of the container after the wooden floor is laid, so that the nail delivery component 4 can transport the self-tapping screws to the installation position.

[0038] In one embodiment, the first driving mechanism 5 can also drive the relative position of the nail feeding assembly 4 relative to the nail row assembly 3, so that the nail feeding assembly 4 moves to a position corresponding to the nail row assembly 3, thereby making the self-tapping screws transmitted by the nail row assembly 3 just fall on the nail feeding assembly 4.

[0039] Specifically, there are multiple nail feeding assemblies 4, and the multiple nail feeding assemblies 4 are arranged at intervals along the direction in which the first driving mechanism 5 drives the nail feeding assemblies 4 to move, and the multiple nail feeding assemblies 4 correspond to multiple installation positions one by one, and the first driving mechanism 5 can drive the nail feeding assemblies 4 to move relative to the nail row assembly 3, so that the self-tapping screws on the nail row assembly 3 are transferred to different nail feeding assemblies 4. For example, during operation, by controlling the first driving mechanism 5, the multiple nail feeding assemblies 4 are sequentially brought to the positions corresponding to the nail row assembly 3, and then the nail row assembly 3 transfers the self-tapping screws to the corresponding nail feeding assemblies 4, and then the first driving mechanism 5 drives the nail feeding assemblies 4 to move to the positions corresponding to the installation positions, and finally the multiple nail feeding assemblies 4 simultaneously transfer the multiple self-tapping screws to the installation positions, thereby improving the nail placement efficiency.

[0040] See also Figure 3 and Figure 4In one embodiment, the nail feeding assembly 4 includes a transmission channel 41 and a thrust mechanism 42. The transmission channel 41 connects the nail row assembly 3 and the installation position. The thrust mechanism 42 is arranged on the transmission channel 41 to drive the self-tapping screw to move on the transmission channel 41 so that the self-tapping screw can smoothly reach the installation position.

[0041] Specifically, the conveying channel 41 includes a first conveying conduit 411, a second conveying conduit 412 and a nail connector 413. The first end of the first conveying conduit 411 is fixed to the first driving mechanism 5, the second end of the first conveying conduit 411 is fixedly connected to the nail connector 413, and the second conveying conduit 412 connects the nail connector 413 with the installation position. The nail connector 413 is provided with a nail through hole, which connects the first conveying conduit 411 and the second conveying conduit 412.

[0042] The thrust mechanism 42 includes a control valve 421 and an air supply pipe 422. The control valve 421 and the air supply pipe 422 are both arranged on the nail connector 413 and located between the first delivery conduit 411 and the second delivery conduit 412. One end of the air supply pipe 422 is connected between the control valve 421 and the second delivery conduit 412, and the other end is connected to an external air supply source. When the control valve 421 is closed, the gas introduced into the air supply pipe 422 can drive the self-tapping screws on the second delivery conduit 412 to move.

[0043] When the self-tapping screw leaves the nail row assembly 3, the self-tapping screw enters the first delivery duct 411, and then reaches the nail receiver 413 under the action of gravity and is located below the air supply pipe 422. The second delivery duct 412 is connected to the bottom surface of the nail receiver 413, and the end of the second delivery duct 412 away from the nail receiver 413 corresponds to the installation position. After passing through the second delivery duct 412, the self-tapping screw just falls at the installation position. Among them, the diameters of the first delivery duct 411 and the second delivery duct 412 are adapted to the diameters of the self-tapping screw, so that the self-tapping screw maintains a fixed posture when moving in the second delivery duct 412, and then the self-tapping screw can be placed in the hole in the same state, that is, the nut of the self-tapping screw faces upward, so that the self-tapping screw can be inserted into the hole, and when tightening the self-tapping screw, there is no need to adjust the state of the self-tapping screw.

[0044] The control valve 421 is arranged on the nail connector 413, and can control the opening and closing of the nail through hole. The air supply pipe 422 is connected to the nail through hole, and the air supply pipe 422 is connected to the external air source. When the position of the nail connector 413 is far away from the installation position, due to space limitations, the second delivery duct 412 needs to be provided with some gentle sections, but the self-tapping screws cannot pass through the gentle sections of the second delivery duct 412 by their own weight. In this embodiment, the control valve 421 and the air supply pipe 422 are arranged, and the air supply pipe 422 is connected to the air supply source. When the self-tapping screw passes through the position of the control valve 421, the control valve 421 is closed, and then the air source is opened, so that the self-tapping screw is conveyed to the installation position under the push of air pressure.

[0045] exist Figure 4 In the illustrated embodiment, the control valve 421 includes a telescopic cylinder and a baffle. The telescopic cylinder is fixed on the nail connector 413. The nail connector 413 is provided with a slide groove. The baffle is slidably connected in the slide groove and is connected to the movable end of the telescopic cylinder. When the telescopic cylinder drives the baffle to move, the baffle can switch between the position of closing the nail through hole and opening the nail through hole, thereby realizing the control of the on and off of the nail through hole.

[0046] The second delivery conduit 412 may be a soft pipe or a hard pipe.

[0047] See also Figure 7 In one embodiment, the first driving mechanism 5 includes a driving motor 51, a transmission gear 52, a rack 53 and a connecting member 54. The driving motor 51 is fixed on the fixed frame 11, the transmission gear 52 is fixed on the output shaft of the driving motor 51, the connecting member 54 is slidably connected to the fixed frame 11, the rack 53 is fixed on the nail feeding assembly 4 and meshes with the transmission gear 52, and the nail feeding assembly 4 is fixed on the connecting member 54, so that when the driving motor 51 rotates, it can drive the rack 53 to move, thereby realizing the movement of the nail feeding assembly 4.

[0048] In one embodiment, the holes on the wooden floor are arranged on the same straight line, and the first driving mechanism 5 drives the nail feeding assembly 4 to move in a straight line. Specifically, a linear guide rail 13 is fixed on the fixing frame 11, and the connecting member 54 is connected to the linear guide rail 13, so that when the first driving mechanism 5 drives the connecting member 54 to move, the position of the nail feeding assembly 4 is more accurate.

[0049] In another embodiment, the holes on the wooden floor are not arranged on the same straight line, and the first driving mechanism 5 drives the nail feeding assembly 4 to move in a curved motion, so that the end of the nail feeding assembly 4 outputting the self-tapping nail can correspond to each hole. In one embodiment, the rack 53 in the embodiment in which the first driving mechanism 5 includes a driving motor 51, a transmission gear 52, a rack 53 and a connecting member 54 can be set to a curved shape, so that the nail feeding assembly 4 on the connecting member 54 moves along the curve. Alternatively, the first driving mechanism 5 is a truss mechanism that can drive the nail feeding assembly 4 to move in the first direction and the second direction (the same working principle as a machine tool workbench that can move in the XY direction), and the first driving mechanism 5 drives the nail feeding assembly 4 to move in a curved direction by controlling the movement of the nail feeding assembly 4 in the first direction and the second direction.

[0050] See also Figure 1-Figure 3 In one embodiment, the nail row assembly 3 includes a second driving mechanism 31 , a nail lifting plate 32 , a feeding guide groove 33 and a nail dropper 34 .

[0051] The upper end of the nail lifting plate 32 is placed in the feed hopper 2 and can move up and down relative to the feed hopper 2. The top surface of the nail lifting plate 32 is provided with a first guide groove 321. The second driving mechanism 31 is installed on the feed hopper 2 or the fixed frame 11 and is connected to the lower end of the nail lifting plate 32. The second driving mechanism 31 can drive the nail lifting plate 32 to rise and fall. One end of the feeding guide groove 33 is connected to the feed hopper 2, and the other end extends to the nail feeding assembly 4. The top surface of the feeding guide groove 33 is provided with a second guide groove 331, and the position of the second guide groove 331 is aligned with the first guide groove 321. The nail dropper 34 is arranged at one end of the feeding guide groove 33 away from the nail lifting plate 32, and the nail dropper 34 can control the speed at which the self-tapping nails enter the nail feeding assembly 4.

[0052] When the second driving mechanism 31 drives the nail lifting plate 32 to rise, some of the self-tapping nails in the feed hopper 2 fall into the first guide groove 321, and move along the first guide groove 321 to the second guide groove 331, and then under the transmission of the feeding guide groove 33, pass through the nail dropper 34 and enter the nail through hole of the nail feeding assembly 4.

[0053] In a preferred embodiment, the second driving mechanism 31 is a telescopic cylinder, which is connected to the outer side of the feed hopper 2 , and the movable end of the telescopic cylinder is connected to the nail lifting plate 32 .

[0054] exist Figure 1 In the illustrated embodiment, the top surface of the nail lifting plate 32 is inclined, that is, one end of the top surface of the nail lifting plate 32 close to the feeding guide groove 33 is lower than the other end away from the feeding guide groove 33, so that the self-tapping screws located on the top surface of the nail lifting plate 32 can automatically slide along the top surface of the nail lifting plate 32 to the feeding guide groove 33 under the action of their own weight.

[0055] The bottom and side surfaces of the feed hopper 2 are provided with slots, the lower end of the nail lifting plate 32 is connected to the second driving mechanism 31, and the upper end passes through the slot on the bottom surface of the feed hopper 2 and extends to the inside of the feed hopper 2. The slot on the bottom surface of the feed hopper 2 matches the cross section of the feed hopper 2, so that the self-tapping screws in the feed hopper 2 will not fall from the gap between the feed hopper 2 and the nail lifting plate 32. Preferably, when the nail lifting plate 32 is lowered to the lowest position, the top surface of the nail lifting plate 32 is at least flush with the bottom surface of the feed hopper 2 at the lowest position, so that the self-tapping screws at the bottom of the feed hopper 2 can enter the first guide groove 321.

[0056] When the nail lifting plate 32 rises to the highest position, the height of the nail lifting plate 32 is higher than the top surface of the self-tapping screws stacked in the feed hopper 2, so that the self-tapping screws that remain on the top surface of the nail lifting plate 32 in an irregular state before the nail lifting plate 32 rises will fall from the nail lifting plate 32, while the self-tapping screws that remain on the top surface of the nail lifting plate 32 will move toward the feeding guide groove 33. The irregular state means that the center of gravity of the self-tapping screws is not on the nail lifting plate 32.

[0057] In a preferred embodiment, the bottom surface of the feed hopper 2 is an inclined surface, and when the nail lifting plate 32 is lowered to the lowest position, the top surface of the nail lifting plate 32 is flush with the bottom surface of the feed hopper 2, so that the self-tapping screws at the bottom of the feed hopper 2 can enter the first guide groove 321. When the number of self-tapping screws in the feed hopper 2 is small, the self-tapping screws will automatically be concentrated at the lowest position of the bottom of the feed hopper 2, rather than being dispersed at various positions, so as to facilitate being extracted by the nail lifting plate 32 to the feeding guide groove 33.

[0058] One end of the feeding guide groove 33 passes through the groove on the side of the feed hopper 2 and extends to the inside of the feed hopper 2, and the end face of the feeding guide groove 33 slides against the side of the nail lifting plate 32. When the nail lifting plate 32 rises to a certain height (in the present application, it is preferred that the nail lifting plate 32 rises to the highest position. In other embodiments, the nail lifting plate 32 may not rise to the highest position), the first guide groove 321 is connected to the second guide groove 331, so that the self-tapping screws on the first guide groove 321 can move to the second guide groove 331.

[0059] Among them, the distance between the upper wall surface of the slot on the side of the feed hopper 2 and the top surface of the feeding guide groove 33 is greater than or equal to the height of the nut of the self-tapping screw, and is smaller than the diameter of the self-tapping screw and smaller than the length of the self-tapping screw, so that among the self-tapping screws on the second guide groove 331, only the self-tapping screws with the screw inserted in the second guide groove 331 and the nut facing upward can be brought out of the feed hopper 2, and the remaining self-tapping screws are blocked by the side wall of the feed hopper 2 and fall to the bottom of the feed hopper 2. In this way, by repeatedly lifting and lowering the nail lifting plate 32, the self-tapping screws in the feed hopper 2 are moved to the nail feeding assembly 4 in sequence in the same posture.

[0060] In one embodiment, a vibrator 35 is fixed on the feeding guide groove 33. By controlling the operation of the vibrator 35, the self-tapping screws on the feeding guide groove 33 are moved toward the nail feeding assembly 4. Moreover, by controlling the vibration frequency of the vibrator 35, the transmission speed of the self-tapping screws is controlled, so that the transmission speed of the self-tapping screws is synchronized with the working rhythm of the production line, and multiple self-tapping screws are prevented from piling up at one end of the feeding guide groove 33 near the nail dropper 34. The feeding guide groove 33 and the vibrator 35 form a linear vibration guide groove structure, and the vibrator 35 can be an electromagnetic vibrator or a pneumatic vibrator. In other embodiments, the self-tapping screws can also be moved from the nail lifting plate 32 to the nail feeding assembly 4 by setting the inclination of the feeding guide groove 33.

[0061] In one embodiment, a support seat 12 is fixed on the fixed frame 11, and the end of the feeding guide groove 33 away from the feed hopper 2 is connected to the support seat 12, and the end of the feeding guide groove 33 close to the feed hopper 2 is connected to the feed hopper 2, so that both ends of the feeding guide groove 33 are fixed, thereby improving the firmness of the feeding guide groove 33 and preventing the feeding guide groove 33 from being deformed when the vibrator 35 vibrates and affecting the transmission of the self-tapping screws.

[0062] See also Figure 3 and Figure 5 In one embodiment, the nail dropper 34 includes a fixing seat 341, an elastic member 342 and a telescopic member 343. The fixing seat 341 is fixed to the end of the feeding guide groove 33 away from the nail lifting plate 32, and a nail passing channel is provided on the fixing seat 341, one end of the nail passing channel is connected to the second guide groove 331, and the other end is connected to the nail feeding assembly 4, that is, the end of the nail passing channel away from the second guide groove 331 is connected to the nail passing hole of the nail receiving device 413, so that the self-tapping nails passing through the nail passing channel can be delivered to the installation position through the nail passing hole and the second delivery conduit 412.

[0063] One end of the elastic member 342 is fixed on the fixing seat 341, and the other end extends to the inside of the nail passage and can block the self-tapping screw. The telescopic member 343 is connected to the fixing seat 341, and the telescopic end of the telescopic member 343 can push the elastic member 342 to elastically deform so that the self-tapping screw can pass through the nail passage.

[0064] exist Figure 5In the illustrated embodiment, the nail passage is connected to the top and bottom surfaces of the fixing seat 341, and the elastic member 342 is fixed on the top surface of the fixing seat 341. When the self-tapping screw enters the nail passage from the second guide groove 331, the nut of the self-tapping screw is supported by the elastic member 342, and then stays at the position of the elastic member 342. The telescopic member 343 is fixed above the fixing seat 341, and the movable end of the telescopic member 343 can be telescoped downward. When the movable end of the telescopic member 343 extends downward, the movable end of the telescopic member 343 can push the self-tapping screw located at the elastic member 342, so that the elastic member 342 is elastically deformed and the self-tapping screw located at the elastic member 342 passes through the elastic member 342 and enters the nail through hole. When the movable end of the telescopic member 343 is retracted, the elastic member 342 rebounds synchronously, so that the next self-tapping screw is blocked by the elastic member 342 at the nail passage. Therefore, through the control of the telescopic member 343, the self-tapping screws are sequentially entered into the nail feeding assembly 4, avoiding the problem of placing multiple self-tapping screws at one installation position.

[0065] In a preferred embodiment, the telescopic member 343 is a telescopic cylinder.

[0066] In a preferred embodiment, the elastic member 342 is a spring sheet.

[0067] In one embodiment, the direction in which the first driving mechanism 5 drives the nail feeding assembly 4 to move is a first direction, the length direction of the feeding guide groove 33 is a second direction, and the first direction is perpendicular to the second direction.

[0068] See also Figure 1 and Figure 6 There are multiple nail lifting plates 32, and the multiple nail lifting plates 32 are arranged at intervals along the first direction. The multiple nail lifting plates 32 are all connected to the second driving mechanism 31, so that one second driving mechanism 31 can drive multiple nail lifting plates 32 to rise and fall at the same time, reducing the number of second driving mechanisms 31 and reducing costs.

[0069] There are multiple feeding guide grooves 33, which are spaced apart along the first direction and correspond to the positions of the nail lifting plates 32. There are multiple nail droppers 34, which correspond to the feeding guide grooves 33. Therefore, by controlling the second driving mechanism 31 to simultaneously drive multiple nail lifting plates 32 to rise and fall, multiple self-tapping nails can be extracted at the same time, thereby improving the working efficiency of the nail row assembly 3.

[0070] The nail feeding assembly 4 is arranged below the nail dropper 34. There are multiple groups of nail feeding assemblies 4, and the position of each group of nail feeding assemblies 4 corresponds to the position of the nail dropper 34. Each group of nail feeding assemblies 4 includes at least one nail feeding assembly 4.

[0071] In one embodiment, each group of nail feeding assemblies 4 includes at least two nail feeding assemblies 4 , and the distance between two adjacent nail feeding assemblies 4 in each group of nail feeding assemblies 4 is equal.

[0072] exist Figure 6 In the illustrated embodiment, each group of nail feeding assemblies 4 includes two nail feeding assemblies 4. When the output end of the first driving mechanism 5 is located at the first position, the first nail feeding assembly 4 of each group of nail feeding assemblies 4 corresponds to the nail dropper 34. When the output end of the first driving mechanism 5 is located at the second position, the second nail feeding assembly 4 of each group of nail feeding assemblies 4 corresponds to the nail dropper 34. Therefore, the number of nail row assemblies 3 can be reduced, the cost can be reduced, and the work efficiency can be improved.

[0073] In other embodiments, each group of nail feeding assemblies 4 may also include three nail feeding assemblies 4 , four nail feeding assemblies 4 , or more nail feeding assemblies 4 .

[0074] For example, in Figure 1 and Figure 6 In the embodiment shown, there are 10 nail lifting plates 32, which are equidistantly arranged along the first direction, and the number of feeding guide grooves 33 and nail droppers 34 is equal to that of the nail lifting plates 32. The nail lifting plates 32, feeding guide grooves 33 and nail droppers 34 correspond one to one in the second direction. There are 20 nail receivers 413, which are equidistantly distributed along the first direction and fixed together. The serial numbers of the 20 nail receivers 413 are 1, 2, 3, 4, ... 20, and each adjacent two nail receivers 413 form a group. The number of control valves 421 and delivery conduits is equal to that of nail receivers 413, and their positions correspond one to one. When the first driving mechanism 5 drives the nail receiver 413 to be in the first position, the positions of the 10 nail receivers 413 with odd numbers respectively correspond to the positions of the nail droppers 34; when the first driving mechanism 5 drives the nail receiver 413 to be in the second position, the positions of the 10 nail receivers 413 with even numbers respectively correspond to the positions of the nail droppers 34.

[0075] During operation, the first driving mechanism 5 first drives the nail receiver 413 to the first position, and controls the self-tapping screws on the nail dropper 34 to enter the nail receiver 413 with an odd number, and then the first driving mechanism 5 drives the nail receiver 413 to the second position, and controls the self-tapping screws on the nail dropper 34 to enter the nail receiver 413 with an even number, then all the control valves 421 are closed, and high-pressure gas is introduced into the air source, so that all the self-tapping screws in the nail receiver 413 are transported to the corresponding installation positions.

[0076] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A self-tapping screw feeding device, characterized in that: include: Fixed frame; A feed hopper, fixed on the fixing frame, for accommodating self-tapping screws; A nail delivery assembly capable of delivering the self-tapping screws to an installation position; A nail row assembly, connected to the feed hopper and the nail delivery assembly, capable of sequentially delivering the self-tapping screws in the feed hopper to the nail delivery assembly; The first driving mechanism is connected to the fixing frame and is connected to the nail feeding assembly. The first driving mechanism can drive the nail feeding assembly to move so as to adjust the relative position between the nail feeding assembly and the installation position.

2. The self-tapping screw feeding device according to claim 1, characterized in that: The nail feeding assemblies are configured in plurality, and the plurality of nail feeding assemblies are arranged at intervals along the direction in which the first driving mechanism drives the nail feeding assemblies to move.

3. The self-tapping screw feeding device according to claim 2, characterized in that: The nail feeding assembly includes a transmission channel and a thrust mechanism. The transmission channel communicates with the nail row assembly and the installation position. The thrust mechanism is arranged on the transmission channel to drive the self-tapping screws to move on the transmission channel.

4. The self-tapping screw feeding device according to claim 3, characterized in that: The conveying channel includes a first conveying conduit, a second conveying conduit and a nail connector, wherein the first end of the first conveying conduit is fixed to the first driving mechanism, the second end of the first conveying conduit is fixedly connected to the nail connector, and the second conveying conduit communicates the nail connector with the installation position; The thrust mechanism includes a control valve and an air supply pipe, both of which are arranged on the nail connector and located between the first delivery conduit and the second delivery conduit. One end of the air supply pipe is connected between the control valve and the second delivery conduit, and the other end is connected to an external air supply source. When the control valve is closed, the gas introduced into the air supply pipe can drive the self-tapping screws on the second delivery conduit to move.

5. The self-tapping screw feeding device according to claim 1, characterized in that: The first driving mechanism drives the nail feeding assembly to move in a linear manner.

6. The self-tapping screw feeding device according to claim 1, characterized in that: The first driving mechanism includes a driving motor, a transmission gear, a rack and a connecting piece. The driving motor is fixed on the fixed frame, the transmission gear is fixed on the output shaft of the driving motor, the connecting piece is slidably connected to the fixed frame, the rack is fixed on the connecting piece and meshes with the transmission gear, and the nail feeding assembly is fixed on the connecting piece.

7. The self-tapping screw feeding device according to any one of claims 1 to 6, characterized in that: The nail row assembly includes a second driving mechanism, a nail lifting plate, a feeding guide groove and a nail dropper; The upper end of the nail lifting plate is placed in the feed hopper and can move up and down relative to the feed hopper, and the top surface of the nail lifting plate is provided with a first guide groove; The second driving mechanism is installed on the feed hopper or the fixed frame and connected to the lower end of the nail lifting plate, and the second driving mechanism can drive the nail lifting plate to rise and fall; One end of the feeding guide groove is connected to the feed hopper, and the other end extends toward the nail feeding assembly. A second guide groove is provided on the top surface of the feeding guide groove, and the position of the second guide groove is aligned with the first guide groove; The nail dropper is arranged at one end of the feeding guide groove away from the nail lifting plate, and the nail dropper can control the speed at which the self-tapping screws enter the nail feeding assembly.

8. The self-tapping screw feeding device according to claim 7, characterized in that: The top surface of the nail lifting plate is inclined, and one end of the top surface of the nail lifting plate close to the feeding guide groove is lower than the other end away from the feeding guide groove.

9. The self-tapping screw feeding device according to claim 7, characterized in that: A vibrator is fixed on the feeding guide trough, and the vibrator can drive the feeding guide trough to vibrate.

10. The self-tapping screw feeding device according to claim 7, characterized in that: The nail dropper comprises a fixing seat, an elastic member and a telescopic member; The fixing seat is fixed to one end of the feeding guide groove away from the nail lifting plate, and a nail passing channel is provided on the fixing seat, one end of the nail passing channel is connected to the second guide groove, and the other end is connected to the nail feeding assembly; One end of the elastic member is fixed on the fixing seat, and the other end extends to the inside of the nail passage and can block the self-tapping screw; The telescopic member is connected to the fixing seat, and the telescopic end of the telescopic member can push the elastic member to deform elastically, so that the self-tapping screw can pass through the nail passage.

11. The self-tapping screw feeding device according to claim 7, characterized in that: The direction in which the nail feeding assembly is driven by the first driving mechanism to move is a first direction, the length direction of the feeding guide groove is a second direction, and the first direction is perpendicular to the second direction; The nail lifting plates are configured in plurality, the plurality of nail lifting plates are arranged at intervals along the first direction, and the plurality of nail lifting plates are all connected to the second driving mechanism; The feeding guide grooves are configured in plurality, and the plurality of feeding guide grooves are arranged at intervals along the first direction and correspond one to one with the positions of the nail lifting plates; The nail droppers are configured in plurality, and the plurality of nail droppers correspond one to one with the feeding guide grooves; The nail feeding assembly is arranged below the nail dropper, and a plurality of groups of the nail feeding assemblies are arranged, and the position of each group of the nail feeding assemblies corresponds one-to-one to the position of the nail dropper.

12. The self-tapping screw feeding device according to claim 11, characterized in that: Each group of the nail feeding assemblies includes at least two nail feeding assemblies, and the distance between two adjacent nail feeding assemblies in each group of the nail feeding assemblies is equal.

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