Positioning and correcting device for pre-coating chemical glue on fastener

Abstract

A positioning and correcting device for pre-coating a fastener with chemical glue comprises a rotary table, a magnetic rotary table, an axial inspection part, an upper correcting frame and a lower correcting frame, the fastener comprises an adsorption end and an outer suspension end which are magnetically attracted to the peripheral face of the magnetic rotary table, and the rotary table drives the magnetic rotary table to rotate and drives the fastener to pass through a gluing device; the axial inspection piece is arranged behind the upper correction frame and the lower correction frame relative to the fastener conveying direction, the axial inspection piece is provided with an alignment through groove corresponding to the fastener conveying path, and the alignment through groove comprises a first notch matched with the outline of the adsorption end and a second notch matched with the outline of the external suspension end. Fasteners are limited and guided from the vertical upper side and the vertical lower side of the fasteners through the upper correcting frame and the lower correcting frame, so that the fasteners are conveyed in a unified horizontal line so as to pass through a rear axial inspection piece, only when the axial orientation of the fasteners conforms to the preset orientation, the fasteners can pass through the alignment through groove, and the fasteners with the wrong orientation are intercepted by the axial inspection piece and fall into the hopper to be recycled.

Description

Technical Field

[0001] This utility model relates to the field of fastener production equipment technology, specifically to a positioning and correction device for fasteners pre-coated with chemical adhesive. Background Technology

[0002] The chemical adhesives used on fasteners and screws are usually called fastening adhesives or anaerobic sealants. These adhesives are primarily used to ensure that screws do not loosen during operation.

[0003] To adapt to the automated production of large-volume fastener coating with chemical adhesive, fasteners are held in place by conveying equipment such as magnetic turntables, and carried through the adhesive application device, where the chemical adhesive is dripped onto the fasteners.

[0004] The existing technology has the following problems: Fasteners are attracted to the magnetic turntable at varying positions, such as horizontal variations in height, causing inconsistencies in the fastener's position as it passes the gluing device and affecting the adhesive's dripping effect. Particularly when using automated equipment to transport fasteners to the magnetic turntable, axial errors can occur. For example, some fasteners may be attracted to the turntable at the nut end, while others may be attracted at the shaft end, resulting in a deviation in the relative axial dripping position of the adhesive.

[0005] Therefore, it is necessary to correct the position of each fastener on the magnetic turntable to make them level in the horizontal direction, and to check whether the axial orientation of the fasteners is correct and to unify the orientation. Utility Model Content

[0006] To address the shortcomings of the aforementioned technologies, this invention provides a positioning and correction device for fasteners pre-coated with chemical adhesive.

[0007] The technical solution of this utility model is: a positioning and correction device for pre-coating chemical adhesive on fasteners. The device includes a rotating table, a magnetic turntable, an axial inspection piece, an upper correction frame, and a lower correction frame. The fastener includes an adsorption end and an outer suspension end that are magnetically attracted on the outer circumferential surface of the magnetic turntable. The rotating table drives the magnetic turntable to rotate, and drives the fastener through the adhesive application device.

[0008] The upper alignment frame is provided with an upper guide plate located vertically above the fastener, and the lower alignment frame is provided with a lower guide plate located vertically below the fastener. The distance between the upper and lower guide plates is adapted to the diameter of the fastener. The upper and lower guide plates are tangentially disposed on the outer circumference of the magnetic turntable, and both sides facing the fastener are provided with chamfers.

[0009] The axial inspection piece is located behind the upper and lower correction frames relative to the fastener conveying direction. The axial inspection piece is provided with an alignment slot corresponding to the fastener conveying path. The alignment slot includes a first slot that matches the contour of the adsorption end and a second slot that matches the contour of the outer suspension end.

[0010] Further features of this invention: The device also includes an adjustment mechanism, which includes a base, a lead screw, a pair of guide rods, a lifting seat, and a handwheel. The pair of guide rods are fixedly mounted on the base. The lead screw is axially rotatably engaged with the base. The lifting seat is provided with a sliding hole that is axially slidingly engaged with the pair of guide rods and a threaded hole that is threadedly engaged with the lead screw. The handwheel is coaxially linked with the lead screw and drives the lifting seat to slide axially along the guide rods.

[0011] The lifting base and the axial inspection piece are respectively provided with screw holes. The axial inspection piece is detachably fixed to the lifting base by screws and its position is adjusted vertically with the lifting base.

[0012] Further features of this invention: The device also includes a support platform and a hopper. The support platform is provided with a first positioning screw hole. The base is provided with a first elongated groove along the fastener conveying direction. The first elongated groove and the first positioning screw hole are fixed by screws in a detachable manner. The hopper is located vertically below the axial inspection piece to receive fasteners with axial errors.

[0013] Further features of this invention: both the upper guide plate and the lower guide plate are provided with a second elongated groove along the radial direction of the magnetic turntable; both the upper and lower calibration frames are provided with a second positioning screw hole; and screws are used for detachable fixing between the second elongated groove and the second positioning screw hole.

[0014] A further feature of this invention is that the device also includes a toggle mechanism disposed on the side of the axial inspection piece facing the upper and lower calibration frames. The toggle mechanism includes a roller, a dial wheel, a driving bevel gear, a driven bevel gear, and a bracket. The roller is in rolling contact with the magnetic turntable. The roller is provided with a first rotating shaft. The driving bevel gear is coaxially connected to the first rotating shaft. The outer circumference of the dial wheel is provided with a lever extending to the alignment slot. The axis of the dial wheel is provided with a second rotating shaft. The driven bevel gear is coaxially connected to the second rotating shaft and meshes with the driving bevel gear. The bracket is in rotational contact with the first and second rotating shafts. The roller drives the lever to dislodge the fasteners intercepted at the alignment slot as the magnetic turntable rotates.

[0015] The beneficial effects of this utility model are as follows: First, the fastener is guided by the upper and lower correction frames from the vertical top and bottom sides, so that it is conveyed in a uniform horizontal line to pass through the axial inspection piece. The axial inspection piece is equipped with alignment grooves corresponding to the different contours of the fastener's adsorption end and the outer cantilever end. Only when the axial orientation of the fastener conforms to the predetermined orientation can it pass through the alignment groove to enter the gluing device. Fasteners with incorrect orientation are intercepted by the axial inspection piece and fall into the hopper for recycling.

[0016] Second, through the design of the adjustment mechanism, the first elongated groove, the second elongated groove, and other structures, the axial inspection piece, the upper calibration frame, and the lower calibration frame can be positioned relative to the magnetic turntable. The detachable design of the axial inspection piece allows for the replacement of axial inspection pieces with different contours aligned with the through grooves to accommodate fasteners from different production batches, enabling rapid equipment adjustment.

[0017] Third, through the set toggle mechanism, the roller and the magnetic turntable roll together, and drive the dial to rotate with the rotation speed, so that the lever regularly moves across the alignment slot entry side, knocking off the intercepted fasteners, instead of knocking on the fasteners that pass normally. Attached Figure Description

[0018] Figure 1 The structure of this utility model embodiment Figure 1 ;

[0019] Figure 2 The structure of this utility model embodiment Figure 2 ;

[0020] Figure 3 The structure of this utility model embodiment Figure 3 ;

[0021] Figure 4 The structure of this utility model embodiment Figure 4 .

[0022] Among them, 1-fastener, 11-rotating table, 12-magnetic turntable, 13-adsorption end, 14-outer suspension end, 2-axial inspection piece, 21-alignment through slot, 22-first slot, 23-second slot, 3-upper correction frame, 31-upper guide plate, 4-lower correction frame, 41-lower guide plate, 51-base, 52-lead screw, 53-guide rod, 54-lifting seat, 55-handwheel, 56-screw, 57-first elongated groove, 58-second elongated groove, 61-roller, 62-dial wheel, 63-driving bevel gear, 64-driven bevel gear, 65-bracket, 66-dial lever.

[0023] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0024] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0025] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-4 As shown,

[0026] A correction device for applying chemical adhesive to fastener 1, the device includes a rotary table 11, a magnetic turntable 12, an axial inspection piece 2, an upper correction frame 3, and a lower correction frame 4. The fastener 1 includes an adsorption end 13 and an outer suspension end 14 magnetically attracted on the outer peripheral surface of the magnetic turntable 12. The rotary table 11 drives the magnetic turntable 12 to rotate, and the fastener 1 passes through the adhesive application device.

[0027] The upper correction frame 3 is provided with an upper guide plate 31 located vertically above the fastener 1, and the lower correction frame 4 is provided with a lower guide plate 41 located vertically below the fastener 1. The distance between the upper guide plate 31 and the lower guide plate 41 is adapted to the diameter of the fastener 1. The upper guide plate 31 and the lower guide plate 41 are tangentially disposed on the outer peripheral surface of the magnetic turntable 12, and both sides facing the fastener 1 are provided with chamfers.

[0028] The axial inspection piece 2 is located behind the upper correction frame 3 and the lower correction frame 4 relative to the conveying direction of the fastener 1. The axial inspection piece 2 is provided with an alignment slot 21 corresponding to the conveying path of the fastener 1. The alignment slot 21 includes a first slot 22 that matches the contour of the adsorption end 13 and a second slot 23 that matches the contour of the outer suspension end 14.

[0029] The device further includes an adjustment mechanism, which includes a base 51, a lead screw 52, ​​a pair of guide rods 53, a lifting seat 54, and a handwheel 55. The pair of guide rods 53 are fixedly mounted on the base 51. The lead screw 52 is axially rotated with the base 51. The lifting seat 54 is provided with a sliding hole that is axially sliding with the pair of guide rods 53 and a threaded hole that is threaded with the lead screw 52. The handwheel 55 is coaxially linked with the lead screw 52, ​​driving the lifting seat 54 to slide axially along the guide rods 53. The lifting seat 54 and the axial inspection piece 2 are respectively provided with screw holes. The axial inspection piece 2 is detachably fixed to the lifting seat 54 by screws 56 and its position is adjusted vertically with the lifting seat 54.

[0030] The device also includes a support platform and a hopper. The support platform is provided with a first positioning screw hole. The base 51 is provided with a first elongated groove 57 along the conveying direction of the fastener 1. The first elongated groove 57 and the first positioning screw hole are fixed by screws in a detachable manner. The hopper is located vertically below the axial inspection piece 2 to receive the fastener 1 with axial error.

[0031] Both the upper guide plate 31 and the lower guide plate 41 are provided with a second elongated groove 58 radially along the magnetic turntable 12. Both the upper correction frame 3 and the lower correction frame 4 are provided with a second positioning screw hole. The second elongated groove 58 and the second positioning screw hole are fixed by a screw for detachment.

[0032] The device also includes a toggle mechanism disposed on the side of the axial inspection piece 2 facing the upper calibration frame 3 and the lower calibration frame 4. The toggle mechanism includes a roller 61, a dial 62, a driving bevel gear 63, a driven bevel gear 64, and a bracket 65. The roller 61 is in rolling engagement with the magnetic turntable 12. The roller 61 is provided with a first rotating shaft. The driving bevel gear 63 is coaxially connected to the first rotating shaft. The outer circumference of the dial 62 is provided with a lever 66 extending to the alignment slot 21. The axis of the dial 62 is provided with a second rotating shaft. The driven bevel gear 64 is coaxially connected to the second rotating shaft and meshes with the driving bevel gear 63. The bracket 65 is in rotational engagement with the first rotating shaft and the second rotating shaft. The roller 61 drives the lever 66 to dislodge the fastener 1 intercepted at the alignment slot 21 as the magnetic turntable 12 rotates.

[0033] The fastener 1 is guided by the upper and lower alignment frames 3 and 4, which limit and guide it from the vertical top and bottom sides, so that it is conveyed in a uniform horizontal line to pass through the axial inspection piece 2. The axial inspection piece 2 is equipped with alignment grooves 21 corresponding to the different contours of the fastener 1's adsorption end 13 and the outer cantilever end 14. Only when the axial orientation of the fastener 1 conforms to the predetermined orientation can it pass through the alignment grooves 21 to enter the gluing device. Fasteners 1 with incorrect orientation are intercepted by the axial inspection piece 2 and fall into the hopper for recycling.

[0034] By adjusting the design of the mechanism, the first elongated groove 57, the second elongated groove 58, etc., the axial inspection piece 2, the upper correction frame 3, and the lower correction frame 4 can be positioned relative to the magnetic turntable 12. The detachable design of the axial inspection piece 2 allows for quick adjustment of the equipment by replacing the axial inspection piece 2 with different contours aligned with the through groove 21 when dealing with fasteners 1 from different production batches.

[0035] By using the set toggle mechanism, the roller 61 and the magnetic turntable 12 roll together, and drive the dial 62 to rotate with its rotation speed, so that the lever 66 regularly moves across the alignment slot 21 entry side, knocking off the intercepted fastener 1, instead of knocking on the fastener 1 that is passing normally.

[0036] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A positioning and correction device for fasteners pre-coated with chemical adhesive, characterized in that: The device includes a rotary table, a magnetic turntable, an axial inspection piece, an upper correction frame, and a lower correction frame. The fastener includes an adsorption end and an outer suspension end that magnetically attract the outer circumference of the magnetic turntable. The rotary table drives the magnetic turntable to rotate, causing the fastener to pass through the gluing device. The upper alignment frame is provided with an upper guide plate located vertically above the fastener, and the lower alignment frame is provided with a lower guide plate located vertically below the fastener. The distance between the upper and lower guide plates is adapted to the diameter of the fastener. The upper and lower guide plates are tangentially disposed on the outer circumference of the magnetic turntable, and both sides facing the fastener are provided with chamfers. The axial inspection piece is located behind the upper and lower correction frames relative to the fastener conveying direction. The axial inspection piece is provided with an alignment slot corresponding to the fastener conveying path. The alignment slot includes a first slot that matches the contour of the adsorption end and a second slot that matches the contour of the outer suspension end.

2. The positioning and correction device for pre-coated chemical adhesive on fasteners according to claim 1, characterized in that: The device also includes an adjustment mechanism, which includes a base, a lead screw, a pair of guide rods, a lifting seat, and a handwheel. The pair of guide rods are fixedly mounted on the base. The lead screw is axially rotated with the base. The lifting seat is provided with a sliding hole that is axially sliding with the pair of guide rods and a threaded hole that is threaded with the lead screw. The handwheel is coaxially linked with the lead screw and drives the lifting seat to slide axially along the guide rods. The lifting base and the axial inspection piece are respectively provided with screw holes. The axial inspection piece is detachably fixed to the lifting base by screws and its position is adjusted vertically with the lifting base.

3. The positioning and correction device for pre-coated chemical adhesive on fasteners according to claim 2, characterized in that: The device also includes a support platform and a hopper. The support platform is provided with a first positioning screw hole. The base is provided with a first elongated groove along the fastener conveying direction. The first elongated groove and the first positioning screw hole are fixed by screws in a detachable manner. The hopper is located vertically below the axial inspection piece to receive fasteners with axial errors.

4. The positioning and correction device for pre-coated chemical adhesive on fasteners according to claim 3, characterized in that: Both the upper guide plate and the lower guide plate are provided with a second elongated groove along the radial direction of the magnetic turntable. Both the upper and lower correction frames are provided with a second positioning screw hole. The second elongated groove and the second positioning screw hole are fixed by a screw for detachment.

5. The positioning and correction device for pre-coated chemical adhesive on fasteners according to claim 4, characterized in that: The device further includes a toggle mechanism disposed on the side of the axial inspection piece facing the upper and lower calibration frames. The toggle mechanism includes a roller, a dial wheel, a driving bevel gear, a driven bevel gear, and a bracket. The roller is in rolling engagement with the magnetic turntable. The roller is provided with a first rotating shaft. The driving bevel gear is coaxially connected to the first rotating shaft. The outer circumference of the dial wheel is provided with a lever extending to the alignment slot. The axis of the dial wheel is provided with a second rotating shaft. The driven bevel gear is coaxially connected to the second rotating shaft and meshes with the driving bevel gear. The bracket is in rotational engagement with the first and second rotating shafts. The roller drives the lever to dislodge the fasteners intercepted at the alignment slot as the magnetic turntable rotates.

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