Screw feeding equipment

Abstract

The present invention relates to the technical field of automated production equipment, and discloses a screw feeding device. The screw feeding device includes a main mechanism, a conveying pipe, a discharge nozzle, a conveying drive mechanism and a storage sorting mechanism. The main mechanism includes a support member and a sorting power assembly. The support member is formed with a mounting position and a discharge port; the conveying pipe is connected to the discharge port and the discharge nozzle; the conveying drive mechanism can drive the screw to move along the conveying pipe to the discharge nozzle; the storage sorting mechanism includes a material box, a sorting assembly and a butt joint pipe. The material box is used to accommodate screws, and the sorting assembly is at least partially arranged in the material box. The first end of the butt joint pipe is connected to the sorting assembly; the material box is detachably installed in the mounting position, and the second end of the butt joint pipe is detachably connected to the discharge port. When the material box is installed in the mounting position, the sorting assembly and the sorting power assembly are transmission-coordinated. The screw feeding device of the present invention can improve the convenience and replacement efficiency of screw model replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of automated production equipment, and in particular to a screw feeding device. Background Art

[0002] The screw feeding equipment is a device that can hold bulk screws and arrange the screws neatly and send them to the designated location. The screw feeding equipment includes a main machine, a guide tube and a discharge nozzle. The main machine can hold the screws and send the screws to the guide tube in a preset posture after arranging them. The screws pass through the guide tube and finally reach the discharge nozzle. The electric screwdriver and other tools get the screws from the discharge nozzle to perform the screw locking operation.

[0003] In the prior art, when screws of different specifications need to be replaced, the screws remaining in the main machine need to be taken out little by little, and then the screws of the new type need to be put in. However, the screw taking out process is inconvenient to operate, resulting in low efficiency in screw type replacement.

[0004] Therefore, a screw feeding device is urgently needed to solve the above-mentioned technical problems. Summary of the invention

[0005] The object of the present invention is to provide a screw feeding device, which can improve the convenience and replacement efficiency of screw models by arranging a storage and sorting mechanism to be detachably connected to a support member.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A screw feeding device, comprising:

[0008] The host mechanism comprises a support member and a sorting power assembly, wherein the support member is formed with a mounting position and a discharge port;

[0009] A delivery pipe and a discharge nozzle, wherein the delivery pipe is connected with the discharge port and the discharge nozzle;

[0010] A conveying drive mechanism capable of driving a screw to move along the conveying pipe to the discharge nozzle;

[0011] A storage sorting mechanism comprises a material box, a sorting assembly and a butt joint pipe, wherein the material box is used to accommodate screws, the sorting assembly is at least partially disposed in the material box, and a first end of the butt joint pipe is in communication with the sorting assembly;

[0012] The material box is detachably mounted on the mounting position, the second end of the butt joint pipe is detachably connected to the discharge port, and when the material box is mounted on the mounting position, the sorting assembly is in transmission cooperation with the sorting power assembly.

[0013] As an optional solution, the sorting component includes:

[0014] A turntable is obliquely arranged in the material box, and a plurality of limiting grooves for accommodating and limiting screws are arranged at intervals in the circumferential direction of the turntable;

[0015] A first transmission member, disposed outside the material box and connected to the turntable, the first transmission member being capable of transmission cooperation with the output end of the sorting power assembly;

[0016] A material discharging seat is arranged on one side of the upper end of the turntable, a material passing channel is arranged in the material discharging seat, and the first end of the butt joint pipe is connected with the outlet of the material passing channel;

[0017] The sorting power assembly can drive the first transmission member to rotate, so that the turntable sequentially transports the screws to the entrance of the material transfer channel.

[0018] As an optional solution, the sequencing power assembly includes:

[0019] A driving source connected to the support member;

[0020] The second transmission member is connected to the output end of the driving source and can cooperate with the first transmission member in transmission. The driving source can drive the second transmission member to rotate to drive the first transmission member to rotate.

[0021] As an optional solution, both the first transmission member and the second transmission member are gears.

[0022] As an optional solution, the storage sorting mechanism also includes a stopper, which is connected to the material box and is arranged on one side of the turntable. The stopper forms a gap with the turntable and is used to correct the position of the screw in the limit groove.

[0023] As an optional solution, the conveying drive mechanism includes a blowing assembly, which is detachably connected to the discharge seat and can blow air into the transfer channel to blow the screws in the transfer channel to the discharge nozzle.

[0024] As an optional solution, three first bosses are arranged on the inner wall of the delivery tube at intervals along the circumference of the delivery tube, and the three first bosses enable the axial direction of the screw to extend along the radial direction of the delivery tube; and / or

[0025] The inner wall of the butt joint tube is provided with three second bosses spaced apart along the circumference of the butt joint tube, and the three second bosses enable the axial direction of the screw to be arranged along the axial direction of the butt joint tube.

[0026] As an optional solution, the discharge nozzle includes:

[0027] Mounting seat;

[0028] Two clamping nozzles are respectively hinged to the mounting seat, and the two clamping nozzles can be closed to enclose a temporary storage cavity and a discharge channel. The temporary storage cavity is connected to the conveying pipe, and the discharge channel is connected to the temporary storage cavity. The two clamping nozzles can be opened so that the screw bit can push the screw in the temporary storage cavity out of the discharge channel.

[0029] As an optional solution, magnetic suction parts are respectively arranged at positions of the two clamping nozzles opposite to the temporary storage cavity, and the magnetic suction parts can absorb the screws and make the heads of the screws face away from the discharge channel.

[0030] As an optional solution, the discharge nozzle further includes:

[0031] An elastic member, connecting the two clamping nozzles and capable of opening the two clamping nozzles;

[0032] A limiting member is connected to the clamping nozzles, and the limiting member is used to abut against a protrusion on the bit to keep the two clamping nozzles closed.

[0033] The beneficial effects of the present invention are:

[0034] The screw feeding device of the present invention, after the material box is installed on the installation position, the sorting component and the sorting power component realize transmission cooperation, and the butt joint pipe is installed at the discharge port to achieve docking with the discharge nozzle. At this time, the sorting power component drives the sorting component to move, and then the screws in the material box can be sorted and transported to the conveying pipe. The screws move to the discharge nozzle under the action of the conveying drive mechanism to realize the feeding of the screws. When different types of screws need to be replaced, the butt joint pipe is disassembled from the discharge port, and the material box is removed from the installation position, and the entire storage sorting mechanism can be removed, so as to facilitate the replacement of the storage sorting mechanism loaded with new types of screws, and then the screw type of the screw feeding device can be easily replaced, which is convenient to operate and improves the efficiency of screw replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a screw feeding device provided in a specific embodiment of the present invention;

[0036] Figure 2 It is a structural schematic diagram of a storage sorting mechanism and a sorting power assembly provided in a specific embodiment of the present invention at one viewing angle;

[0037] Figure 3 It is a structural schematic diagram of a part of the storage sorting mechanism and the sorting power assembly provided by a specific embodiment of the present invention from another perspective;

[0038] Figure 4 is a schematic diagram of the cross-sectional structure of a delivery pipe provided in a specific embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of the cross-sectional structure of a butt-joint pipe provided in a specific embodiment of the present invention;

[0040] Figure 6 is a schematic diagram of a discharge nozzle in a closed state provided by a specific embodiment of the present invention;

[0041] Figure 7 is a schematic diagram of a discharge nozzle in an open state provided by a specific embodiment of the present invention;

[0042] Figure 8 is a side view of a discharge nozzle provided in a specific embodiment of the present invention;

[0043] Fig. 9 yes Figure 8 AA section view in;

[0044] Fig.10 yes Fig. 9 BB section view in.

[0045] In the figure:

[0046] 1. Host mechanism; 11. Support member; 12. Sorting power assembly; 121. Driving source; 122. Second transmission member;

[0047] 2. delivery pipe; 21. first boss; 211. first arc-shaped portion;

[0048] 3. Discharging nozzle; 31. Mounting seat; 32. Clamping nozzle; 33. Temporary storage chamber; 34. Discharging channel; 35. Elastic member; 36. Limiting member; 37. Magnetic member; 38. Docking seat; 39. Pin shaft;

[0049] 4. Storage sorting mechanism; 41. Material box; 42. Sorting assembly; 421. Material discharging seat; 4211. Material passing channel; 4212. Air inlet; 422. Turntable; 4221. Limiting groove; 423. First transmission member; 424. Connecting shaft; 425. Fixed plate; 4251. Avoidance gap; 43. Butt-joint pipe; 431. Second boss; 4311. Second arc-shaped portion; 44. Stopper;

[0050] 5. Batch head; 51. Protrusion;

[0051] 6. Screws. DETAILED DESCRIPTION

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 or an electrical connection; 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 invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0056] This embodiment provides a screw feeding device, which can easily realize the replacement of screw models.

[0057] like Figure 1-Figure 3As shown, the screw feeding device includes a main mechanism 1, a conveying pipe 2, a discharge nozzle 3, a storage sorting mechanism 4 and a conveying drive mechanism (not shown). The main mechanism 1 includes a support 11 and a sorting power assembly 12. The sorting power assembly 12 is arranged on the support 11, and a mounting position and a discharge port are formed on the support 11. One end of the conveying pipe 2 is connected to the discharge port, and the other end is connected to the discharge nozzle 3. The storage sorting mechanism 4 includes a material box 41, a sorting assembly 42 and a butt joint 43. The material box 41 is used to accommodate the screws 6 and is detachably installed in the mounting position of the support 11. The sorting assembly 42 is partially arranged in the material box 41 and partially arranged outside the material box 41. When the material box 41 is installed in the mounting position, the sorting assembly 42 is transmission-coordinated with the sorting power assembly 12. The first end of the butt joint 43 is connected to the sorting assembly 42, and the other end is detachably connected to the discharge port. The sorting component 42 is used to sort the screws 6 in the material box 41 and make the screws 6 enter the docking tube 43 in sequence, and then enter the conveying tube 2. The conveying drive mechanism can drive the screws 6 to move along the conveying tube 2 to the discharge nozzle 3.

[0058] In the screw feeding equipment of this embodiment, after the material box 41 is installed on the installation position, the sorting component 42 and the sorting power component 12 realize transmission cooperation, and the docking pipe 43 is installed at the discharge port to achieve docking with the discharge nozzle 3. At this time, the sorting power component 12 drives the sorting component 42 to operate, and the screws 6 in the material box 41 can be sorted and transported to the conveying pipe 2. The screws 6 move to the discharge nozzle 3 under the action of the conveying drive mechanism to realize the feeding of the screws 6. The electric screwdriver bit 5 can obtain the screws 6 at the discharge nozzle 3 and tighten the screws 6. When different types of screws 6 need to be replaced, the docking pipe 43 is disassembled from the discharge port, and the material box 41 is removed from the installation position, and the entire storage sorting mechanism 4 can be removed to facilitate the replacement of the storage sorting mechanism 4 loaded with new types of screws 6, and then the screw 6 model of the screw feeding equipment can be easily replaced, which is convenient to operate and improves the efficiency of screw 6 replacement.

[0059] In this embodiment, Figure 1 As shown, the support member 11 can be constructed as a box structure, and the local inner cavity of the box structure forms an installation position, and the material box 41 can be installed in the installation position. Optionally, the outer contour of the material box 41 matches the shape of the above-mentioned local inner cavity, so that the support member 11 can preliminarily position the storage sorting mechanism 4, so that the sorting component 42 can smoothly achieve transmission cooperation with the sorting power component 12. Optionally, a positioning part (not shown) is provided in the inner cavity of the support member 11, and the positioning part is concave and convex with the material box 41, so as to further improve the relative position accuracy of the support member 11 and the storage sorting mechanism 4, thereby achieving precise transmission between the sorting component 42 and the sorting power component 12.

[0060] Optionally, the host mechanism 1 further includes a connection joint (not shown), which is installed at the discharge port of the support member 11, and the delivery pipe 2 and the butt joint 43 are respectively connected to both ends of the connection joint, thereby achieving communication between the delivery pipe 2 and the butt joint 43. Optionally, the butt joint 43 is plugged into the connection joint, thereby improving the convenience of disassembly and assembly of the butt joint 43.

[0061] Preferably, if Figure 1-Figure 3 As shown, the sorting assembly 42 includes a discharge seat 421, a turntable 422 and a first transmission member 423. The turntable 422 is tilted and arranged in the material box 41, and a plurality of limit grooves 4221 are arranged at intervals in the circumferential direction of the turntable 422. The first transmission member 423 is arranged outside the material box 41 and connected to the turntable 422. The first transmission member 423 can be matched with the output end of the sorting power assembly 12. The discharge seat 421 is installed on the material box 41 and is arranged on one side of the upper end of the turntable 422. A material passing channel 4211 is arranged in the discharge seat 421, and the butt pipe 43 is connected to the outlet of the material passing channel 4211. The sorting power assembly 12 can drive the first transmission member 423 to rotate, thereby causing the turntable 422 to rotate. During the rotation of the turntable 422, the screw 6 in the material box 41 can be clamped in the limiting groove 4221. Since the turntable 422 is arranged at an angle, when the limiting groove 4221 rotates to be opposite to the entrance of the material transfer channel 4211 on the discharge seat 421, the screw 6 in the limiting groove 4221 will enter the discharge seat 421 in a predetermined posture, and then enter the docking tube 43, and finally move to the discharge nozzle 3 under the driving action of the conveying drive mechanism.

[0062] Specifically, Figure 2 As shown, the sorting assembly 42 further includes a connecting shaft 424, which passes through the material box 41 and has two ends fixedly connected to a rotating disk 422 in the material box 41 and a first transmission member 423 outside the material box 41, respectively, so as to realize the connection between the rotating disk 422 and the first transmission member 423. Optionally, the connecting shaft 424 can be supported on the material box 41 by a bearing.

[0063] It should be noted that the inclined setting of the turntable 422 means that the plane where the turntable 422 is located is set at an angle with the vertical direction, so the turntable 422 can make the screw 6 snap into the limit groove 4221 during the rotation process, and when the limit groove 4221 reaches a position relative to the feed channel 4211, the screw 6 in the limit groove 4221 can automatically fall into the feed channel 4211. In this embodiment, Figure 3 As shown, the screw 6 is clamped in the limiting groove 4221, which means that the rod of the screw 6 is located in the limiting groove 4221, and the head of the screw 6 is located outside the limiting groove 4221 and abuts against the circumferential surface of the rotating disk 422. When the screw 6 reaches the opposite side of the material passing channel 4211, the head of the screw 6 faces upward (i.e., the predetermined posture).

[0064] Preferably, if Figure 3 As shown, the sorting assembly 42 further includes a fixed disk 425, which is connected to the box body and arranged at the lower side of the rotating disk 422. The rotating disk 422 can rotate relative to the fixed disk 425. The fixed disk 425 is provided with an avoidance gap 4251, and the avoidance gap 4251 is opposite to the material passing channel 4211 of the material discharging seat 421. The fixed disk 425 can prevent the screw 6 located in the limiting groove 4221 from falling during the rotation process, so as to ensure that the screw 6 can be smoothly transported to the avoidance gap 4251, and then enter the material passing channel 4211 through the avoidance gap 4251.

[0065] Preferably, if Figure 1 As shown, the storage sorting mechanism 4 also includes a stopper 44, which is connected to the material box 41 and is arranged on one side of the turntable 422. The stopper 44 forms a gap with the turntable 422 and is used to correct the position of the screw 6 in the limiting groove 4221. Specifically, since the stopper 44 forms a gap of a fixed size with the turntable 422, when the rod of the screw 6 is not fully inserted into the limiting groove 4221 (that is, the head of the screw 6 does not abut against the circumferential surface of the turntable 422), after the screw 6 rotates to the stopper 44, the stopper 44 can push the screw 6 completely into the limiting groove 4221 or make the screw 6 fall out of the limiting groove 4221, thereby ensuring that all the screws 6 can reach the material transfer channel 4211 with the predetermined posture. Preferably, as Figure 1 As shown, the lower end of the stopper 44 is provided with an arc surface, which enables the stopper 44 to gradually apply a force to the screw 6, so that the screw 6 is gradually pushed into the limiting groove 4221, or falls out of the limiting groove 4221, avoiding the problem of material jamming.

[0066] Preferably, the host mechanism 1 further includes a vibration component, which is connected to the support member 11. During the feeding process of the screw feeding device, the vibration component can vibrate the material box 41 and the screw 6 therein to ensure that the screw 6 can be smoothly inserted into the limit groove 4221 and then enter the material passage 4211. Optionally, the vibration component can be arranged below or to the side of the material box 41. The vibration component is in the prior art, and its specific structure and working principle are not described in detail here.

[0067] Preferably, if Figure 3As shown, the sorting power assembly 12 includes a driving source 121 and a second transmission member 122, wherein the driving source 121 is connected to the support member 11, and the second transmission member 122 is connected to the output end of the driving source 121, and the second transmission member 122 can cooperate with the first transmission member 423 in transmission, and the driving source 121 can drive the second transmission member 122 to rotate to drive the first transmission member 423 to rotate, thereby realizing the rotation of the driving turntable 422. Optionally, the driving source 121 is a motor. Preferably, the first transmission member 423 and the second transmission member 122 are gears. Therefore, after the material box 41 is installed in the installation position of the support member 11, the first transmission member 423 and the second transmission member 122 are automatically engaged, making it more convenient to replace the storage sorting mechanism 4, and thus making it more convenient to replace the screw model of the screw feeding device.

[0068] Preferably, the conveying drive mechanism includes a blowing assembly, which is detachably connected to the discharge seat 421, and can blow air into the material passage 4211 to blow the screws 6 in the material passage 4211 to the discharge nozzle 3 through the docking pipe 43 and the conveying pipe 2 in sequence. Figure 3 As shown, the discharge seat 421 is provided with an air inlet 4212, which is connected to the feeding channel 4211. The blowing assembly includes an air pump and an air pipe, which is connected to the air pump and the air inlet 4212, so that the air pump can blow air into the feeding channel 4211. Preferably, the axis of the air inlet 4212 is set at an obtuse angle to the discharge direction of the feeding channel 4211, so that the screw 6 in the feeding channel 4211 can be blown out smoothly.

[0069] In the prior art, when the screw 6 is conveyed in the conveying pipe 2, the axial direction of the screw 6 is usually consistent with the axial direction of the conveying pipe 2. For the blowing-type conveying method of the screw 6, when the length of the screw 6 is too long, the screw 6 is easy to flip over in the conveying pipe 2, and thus cannot reach the discharge nozzle 3 in an accurate posture.

[0070] In this regard, preferably, Figure 4 As shown, the inner wall of the delivery pipe 2 is provided with three first bosses 21 spaced apart along the circumference of the delivery pipe 2, and the three first bosses 21 respectively limit the rod or head of the screw 6 between two of them, so that the axial direction of the screw 6 extends along the radial direction of the delivery pipe 2. Figure 5 As shown, three second bosses 431 are arranged at intervals along the circumference of the butt joint tube 43 on the inner wall of the butt joint tube 43, and the three second bosses 431 can respectively limit the head or the rod of the screw 6 between two of them, so that the axial direction of the screw 6 is arranged along the axial direction of the butt joint tube 43. That is, by arranging the first boss 21 and the second boss 431, the screw 6 is transported transversely in the conveying pipe 2 and the butt joint tube 43 (that is, the axial direction of the screw 6 is aligned with the radial direction of the conveying pipe 2 or the butt joint tube 43), thereby preventing the screw 6 from deflecting during the conveying process, and ensuring that the screw 6 enters the discharge nozzle 3 with an accurate posture.

[0071] Preferably, if Figure 4 As shown, the first end of the first boss 21 near the center of the delivery tube 2 forms a first arc portion 211. The first arc portion 211 can not only reduce the delivery resistance of the delivery tube 2 to the screw 6, but also make the delivery tube 2 compatible with the delivery of screws 6 with relatively close specifications. Specific relatively close specifications include: the screws 6 have the same length but a small difference in diameter, or the screws 6 have the same diameter but a small difference in length. Similarly, Figure 5 As shown, one end of the second boss 431 close to the center of the butt joint tube 43 forms a second arc portion 4311 , and the function of the second arc portion 4311 is the same as that of the first arc portion 211 , which will not be described in detail herein.

[0072] Preferably, if Figure 6-Figure 10 As shown, the discharge nozzle 3 includes a mounting seat 31 and two clamping nozzles 32. The two clamping nozzles 32 are respectively hinged to the mounting seat 31, so they can rotate relative to the mounting seat 31. The two clamping nozzles 32 can be selectively closed or opened. When the two clamping nozzles 32 are closed, a temporary storage chamber 33 and a discharge channel 34 are formed between the two clamping nozzles 32. The temporary storage chamber 33 is connected to the conveying pipe 2, that is, the blowing component can blow the screw 6 into the temporary storage chamber 33, and the discharge channel 34 is connected to the temporary storage chamber 33. When the two clamping nozzles 32 are opened, the batch head 5 cooperates with the head of the screw 6 in the temporary storage chamber 33, and pushes the screw 6 out of the discharge nozzle 3 from the discharge channel 34.

[0073] Alternatively, if Figure 6 and Fig. 9 As shown, the two clamping nozzles 32 are symmetrically arranged and are respectively hinged to the mounting base 31 through the pin shaft 39. When the two clamping nozzles 32 rotate relative to the corresponding pin shaft 39, the opening and closing actions can be realized. Fig. 9 As shown, the screwdriver bit 5 passes through the mounting seat 31 from top to bottom. When the screwdriver bit 5 is fed downward along its axial direction, it can cooperate with the screw 6 in the temporary storage cavity 33. When the screwdriver bit 5 is further fed along the axial direction and the two clamping nozzles 32 are opened, the screw 6 can be pushed out from the discharge channel 34, and then the screw 6 can be tightened.

[0074] In this embodiment, Figure 6 and Fig.10 As shown, the discharge nozzle 3 also includes a docking seat 38, which is a tubular member, connected to the mounting seat 31 and communicated with the temporary storage chamber 33, and the delivery pipe 2 is plugged into the docking seat 38, so that the screw 6 in the delivery pipe 2 can smoothly enter the temporary storage chamber 33. The setting of the docking seat 38 can make the delivery pipe 2 and the discharge nozzle 3 have a sufficiently long matching length, thereby ensuring the reliability of the installation of the delivery pipe 2.

[0075] Preferably, if Fig. 9 and Fig.10 As shown, the two nozzles 32 are respectively provided with magnetic suction members 37 at positions opposite to the temporary storage chamber 33. The magnetic suction members 37 can absorb the screw 6 and make the head of the screw 6 away from the discharge channel 34, even if the head of the screw 6 is set upward, so that when the bit 5 is fed from top to bottom, the bit 5 can smoothly cooperate with the head of the screw 6. Optionally, the nozzle 32 is made of plastic and is injection molded, and the magnetic suction member 37 is molded as an insert in the nozzle 32 during the injection molding process. In other embodiments, the specific method of molding the magnetic suction member 37 in the nozzle 32 is not limited here.

[0076] Preferably, if Fig. 9 As shown, a protrusion 51 is provided at the end of the bit 5. The discharge nozzle 3 also includes an elastic member 35 and a limiting member 36. The elastic member 35 is connected to the upper ends of the two clamping nozzles 32, and the elastic member 35 can open the two clamping nozzles 32. The limiting member 36 is connected to the clamping nozzles 32. Before the bit 5 is fed downward, the protrusion 51 of the bit 5 abuts against the limiting member 36, so that the elastic member 35 stretches, thereby keeping the two clamping nozzles 32 in a closed state; when the bit 5 is fed downward, the protrusion 51 of the bit 5 no longer presses against the limiting member 36, and the elastic member 35 pulls the two clamping nozzles 32, so that the two clamping nozzles 32 automatically open. That is, through the cooperation of the elastic member 35, the protrusion 51 and the limiting member 36, the opening and closing of the discharge nozzle 3 are automatically realized, and there is no need to set up an additional drive source 121, which reduces the cost of the screw feeding equipment. Preferably, both ends of the protrusion 51 of the screwdriver bit 5 along the axial direction are respectively provided with chamfers, so when the screwdriver bit 5 is reset upward, the protrusion 51 smoothly reaches the position abutting against the stopper 36. Fig. 9 As mentioned above, the two clamping nozzles 32 are respectively provided with the limiting member 36 on one side facing each other. In other embodiments, the limiting member 36 may be provided on only one clamping nozzle 32, which is not limited here. Optionally, the elastic member 35 may be a spring.

[0077] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope, and the content of this specification should not be understood as limiting the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A screw feeding device, characterized in that: include: A main machine mechanism (1) comprises a support member (11) and a sorting power assembly (12), wherein the support member (11) is formed with a mounting position and a material discharge port; A delivery pipe (2) and a discharge nozzle (3), wherein the delivery pipe (2) is connected to the discharge port and the discharge nozzle (3); A conveying drive mechanism capable of driving a screw to move along the conveying pipe (2) to the discharge nozzle (3); A storage sorting mechanism (4), comprising a material box (41), a sorting assembly (42) and a butt joint pipe (43), wherein the material box (41) is used to accommodate screws, the sorting assembly (42) is at least partially disposed in the material box (41), and a first end of the butt joint pipe (43) is in communication with the sorting assembly (42); The material box (41) is detachably mounted on the mounting position, the second end of the butt joint (43) is detachably connected to the material outlet, and when the material box (41) is mounted on the mounting position, the sorting assembly (42) is in transmission cooperation with the sorting power assembly (12); When it is necessary to replace screws of different types, the butt joint pipe (43) is disassembled from the material outlet, the material box (41) is removed from the installation position, and the storage and sorting mechanism (4) loaded with screws of new types is replaced; The sorting component (42) comprises: A rotating disk (422) is obliquely arranged in the material box (41), and a plurality of limiting grooves (4221) for accommodating and limiting screws are arranged at intervals in the circumferential direction of the rotating disk (422); A first transmission member (423) is arranged outside the material box (41) and connected to the rotating disk (422), and the first transmission member (423) can cooperate with the output end of the sorting power assembly (12) in transmission; A material discharging seat (421) is arranged on one side of the upper end of the rotating disk (422), a material passing channel (4211) is arranged in the material discharging seat (421), and the first end of the butt joint pipe (43) is connected to the outlet of the material passing channel (4211); The sorting power assembly (12) can drive the first transmission member (423) to rotate, so that the turntable (422) sequentially transports the screws to the entrance of the material transfer channel (4211); The sorting assembly (42) further comprises a fixed disk (425), the fixed disk (425) being connected to the material box (41) and being arranged at the lower side of the rotating disk (422), the rotating disk (422) being rotatable relative to the fixed disk (425), the fixed disk (425) being provided with an avoidance notch (4251), the avoidance notch (4251) being opposite to the material transfer channel (4211); The storage sorting mechanism (4) further comprises a stopper (44), the stopper (44) being connected to the material box (41) and being arranged on one side of the turntable (422), the stopper (44) forming a gap with the turntable (422) and being used to correct the position of the screw in the limiting groove (4221).

2. The screw feeding device according to claim 1, characterized in that: The sequencing power assembly (12) comprises: A driving source (121) connected to the supporting member (11); The second transmission member (122) is connected to the output end of the driving source (121) and can cooperate with the first transmission member (423) in transmission. The driving source (121) can drive the second transmission member (122) to rotate so as to drive the first transmission member (423) to rotate.

3. The screw feeding device according to claim 2, characterized in that: The first transmission member (423) and the second transmission member (122) are both gears.

4. The screw feeding device according to claim 1, characterized in that: The conveying drive mechanism comprises an air blowing component, which is detachably connected to the discharge seat (421), and the air blowing component can blow air into the transfer channel (4211) to blow the screws in the transfer channel (4211) to the discharge nozzle (3).

5. The screw feeding device according to any one of claims 1 to 4, characterized in that: The inner wall of the delivery tube (2) is provided with three first bosses (21) spaced apart along the circumference of the delivery tube (2), and the three first bosses (21) enable the axial direction of the screw to extend along the radial direction of the delivery tube (2); and / or The inner wall of the butt joint tube (43) is provided with three second bosses (431) spaced apart along the circumference of the butt joint tube (43), and the three second bosses (431) enable the axial direction of the screw to be arranged along the axial direction of the butt joint tube (43).

6. The screw feeding device according to any one of claims 1 to 4, characterized in that: The discharge nozzle (3) comprises: Mounting seat (31); The two clamping nozzles (32) are respectively hinged to the mounting seat (31); the two clamping nozzles (32) can be closed to enclose a temporary storage chamber (33) and a discharge channel (34); the temporary storage chamber (33) is connected to the conveying pipe (2); the discharge channel (34) is connected to the temporary storage chamber (33); the two clamping nozzles (32) can be opened so that the screw head (5) can push the screw in the temporary storage chamber (33) out of the discharge channel (34).

7. The screw feeding device according to claim 6, characterized in that: Magnetic suction parts (37) are respectively arranged at positions of the two clamping nozzles (32) and the temporary storage chamber (33), and the magnetic suction parts (37) can absorb the screws and make the heads of the screws away from the discharge channel (34).

8. The screw feeding device according to claim 6, characterized in that: The discharge nozzle (3) further comprises: An elastic member (35) connecting the two clamping nozzles (32) and capable of opening the two clamping nozzles (32); A limiting member (36) is connected to the clamping nozzles (32), and the limiting member (36) is used to abut against a protrusion (51) on the bit (5) so as to keep the two clamping nozzles (32) closed.

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