An automatic invisible slider pull tab assembly machine

Abstract

The present invention relates to the field of automatic slider assembly machinery, and specifically discloses an automated invisible slider pull tab assembly machine, comprising a machine base, a station turntable, an invisible slider feeding device, a slider blanking device, a pull tab feeding device, a pull tab blanking and pushing device, an assembly riveting device, and a discharging device. A plurality of invisible slider fixtures are arranged circumferentially on the station turntable. The input end of the slider blanking device is connected to the output end of the slider feeding device, and the input end of the pull tab blanking and pushing device is connected to the output end of the invisible slider feeding device. The slider blanking device, the pull tab blanking and pushing device, and the discharging device are sequentially arranged around the station turntable. Through the rotation of the station turntable, each invisible slider fixture thereon can correspond one by one to the output end of the slider blanking device, the output end of the pull tab blanking and pushing device, and the input end of the discharging device. The assembly machine is suitable for invisible slider pull tab assembly applications, can replace manual labor for automated assembly, and the assembly work is stable and reliable.

Description

Technical Field

[0001] The invention relates to the field of automatic assembly machinery for sliders, in particular to the field of automatic assembly machinery for pull tabs of invisible sliders. Background Art

[0002] The common invisible slider structure includes a slider body, a spring piece, a nose hook, a triangular ring, and a pull tab. When assembling, the spring piece nose hook and the triangular ring are usually assembled together first, and then the pull tab is assembled. The triangular ring plays the role of pulling the nose hook and connecting the pull tab. The triangular ring is usually hooked on the nose hook and is in a freely swingable connection state. Moreover, this invisible slider is usually a smaller slider. The operation of assembling the pull tab and connecting it to the triangular ring requires relatively precise operation to achieve. Therefore, the current operation of assembling the pull tab of this invisible slider is mainly performed manually. With this manual assembly method, the efficiency of a single worker is low and the efficiency is difficult to improve. For large-scale assembly production, this manual method cannot meet the demand. A large number of workers are required to achieve the production workload, the labor cost is high, and the product assembly qualification rate cannot be guaranteed. Workers are easily fatigued and errors are prone to occur. In view of this, the inventor of this case has devoted himself to research and design, which led to the creation of this case. Summary of the Invention

[0003] The object of the present invention is to provide an automated invisible slider pull tab assembly machine which is applied to invisible slider pull tab assembly and can automatically assemble the pull tabs and has reliable assembly work.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: an automated invisible slider pull tab assembly machine, comprising a machine base and a work station turntable arranged on the machine base, an invisible slider feeding device, a slider blanking device, a pull tab feeding device, a pull tab blanking and pushing device, an assembly riveting device and a discharging device, a plurality of invisible slider clamps are arranged on the circumference of the work station turntable to provide multi-station positioning of the invisible slider body, the slider blanking device is used to blank the invisible slider body, and its input end is connected to the output end of the slider feeding device, and the pull tab blanking and pushing device is used to blank the pull tab and push the pull tab to the triangular ring on the invisible slider body. The connected assembly station has an input end connected to the output end of the invisible slider feeding device, and the discharging device is used to take out and discharge the invisible slider that has passed the assembly process from the invisible slider fixture. The slider blanking device, the pull tab blanking and pushing device and the discharging device are arranged in sequence around the station turntable. Through the rotation of the station turntable, each invisible slider fixture thereon can correspond one by one to the output end of the slider blanking device, the output end of the pull tab blanking and pushing device, and the input end of the discharging device. The assembly riveting device is arranged at the pushing station of the pull tab blanking and pushing device to rivet the pull tab to the triangular ring of the invisible slider body.

[0005] The invisible slider clamp includes a clamp mounting seat with a working front end at one end and a mounting connection end at the other end, and an invisible slider positioning groove arranged on the working front end of the clamp mounting seat. The invisible slider positioning groove includes a slider body positioning groove that is opened up and down on the clamp mounting seat for the slider body of the invisible slider to be embedded from above, and a triangular ring positioning groove that is connected to the side of the slider body positioning groove facing the working front end. The upper side of the triangular ring positioning groove and the side facing the working front end are open openings for the triangular ring of the invisible slider to be embedded from above, and the inner bottom is formed with a placing plane for the triangular ring. The triangular ring of the invisible slider is embedded in the triangular ring positioning groove and placed on the placing plane to prevent it from shaking left and right.

[0006] The upper height of the slider body positioning groove is higher than the upper surface of the clamp mounting seat, and the raised part forms an open invisible slider pushing entrance on the side facing the installation connection end. The upper surface of the clamp mounting seat corresponds to the middle section of the invisible slider pushing entrance and is provided with a slider stopper for preventing the slider body of the invisible slider from shaking.

[0007] A nose hook embedding groove is provided between the slider body positioning groove and the triangular ring positioning groove, which is connected to the slider body positioning groove and the triangular ring positioning groove, and the upper side of the nose hook embedding groove is an open mouth for the nose hook of the slider body to be embedded from above. The groove width of the nose hook embedding groove is smaller than the groove width of the triangular ring positioning groove.

[0008] The invisible slider clamp is a structural setting that can be swung to an inclined angle to facilitate the embedding of the slider body and the triangular ring of the invisible slider to achieve an assembled state. The slider blanking device is a structural setting corresponding to the invisible slider clamp swinging to an inclined angle state. A guiding and pushing component for guiding and pushing the invisible slider clamp to an inclined angle state to correspond to the output end of the slider blanking device is provided below the corresponding slider blanking device; a stabilizing mechanism for stabilizing the invisible slider clamp or the triangular ring on the slider body during assembly and riveting is also provided around the invisible slider clamp corresponding to the working position of the pull tab blanking device and the assembly riveting device.

[0009] The U-shaped hinged fork is fixed to the workbench and has two hinged ends, and the hinged ends are fixed on the workbench, and the hinged ends are fixed on the workbench, so that the workbench can be fixed on the workbench.

[0010] The lower part of the movable seat body hinged to the U-shaped hinged fork is provided with a contact roller for pushing the movable seat body to swing.

[0011] The guiding and pushing component is an arc-shaped structural part, and the concave side of the arc is the guiding and pushing working surface. The guiding and pushing working surface includes a middle section and transition sections at both ends of the middle section. The radius of the middle section is smaller than the radius of the two transition sections, and the middle section smoothly transitions to connect the transition sections.

[0012] The guiding and pushing component is connected to the slider blanking device or the machine base through a mounting support rod, and the guiding and pushing component is connected to the mounting support rod through an elastic fine-tuning structure.

[0013] The stabilizing mechanism includes a stabilizing support frame, a stabilizing drive cylinder arranged on the stabilizing support frame and whose piston rod can be extended and retracted downward, a stabilizing pressure block connected to the stabilizing drive cylinder, and a stabilizing movable guide connected to the stabilizing support frame and cooperating with the stabilizing pressure block to realize guiding movement. The stabilizing pressure block includes a clamp pressure rod for stabilizing the invisible slider clamp and a triangular ring pressure rod for stabilizing the triangular ring.

[0014] The slider unloading device includes a unloading bracket, a unloading slide, a pushing arm, an unloading drive cylinder and a pushing block. The unloading slide is fixedly mounted on the unloading bracket at an angle. It is provided with a sliding channel extending along the length direction to prevent the invisible slider from detaching. The upper end of the sliding channel is the input end for connecting the slider unloading device with the output end of the slider feeding device, and the lower end is the discharge end corresponding to the invisible slider fixture. The sliding channel includes an invisible slider main body groove, a nose hook groove and a triangular ring groove in sequence. The three are connected, and the groove width of the nose hook groove is smaller than the groove width of the invisible slider main body groove and the triangular ring groove. The cam is connected to the upper end of the lifting arm to move the lifting device to the lifting position, and the lifting device is connected to the lifting arm to lift the lifting device to lift the lifting device to the lifting position.

[0015] The push block is connected to the lower end of the push arm through a pushing reset structure, and the pushing reset structure is as follows: the lower end of the push arm is provided with a mounting slot, and the upper top surface of the mounting slot is an inclined surface inclined downward toward the slide channel, and one end of the push block is hinged in the mounting slot by a pin shaft, and a tension spring is provided between the end of the push block on one side of the pin shaft and the inclined surface, and the upper surface of the push block on the other side of the pin shaft is pressed against the lower edge of the inclined surface, and the other end of the push block is a U-shaped fork corresponding to the two ends of the upper side surface of the pull head or the pin in the slide channel, and the corresponding discharge end of the unloading slide is provided with an upper and lower sliding groove for the U-shaped fork to pass through and embed into the slide channel.

[0016] The elastic material blocking structure includes a movable hole opened on the side wall of the sliding channel, a material blocking arm inserted in the movable hole, and an elastic connecting piece that elastically supports the inner end of the material blocking arm protruding from the inner side wall of the sliding channel. The inner end of the material blocking arm is an end structure that facilitates the pull head or pin to slide from top to bottom and guide the material discharge left and right.

[0017] A blocking block for pushing the U-shaped fork to rotate downward is provided at the upper end of the upper and lower sliding grooves, and the blocking block and the U-shaped fork are provided with relatively matched inclined guide surfaces.

[0018] The slider blanking device also includes an air blowing device with an air blowing pipe. The air outlet end of the air blowing pipe is arranged corresponding to the outer side of one side of the triangular ring when the invisible slider slides down the slide channel, and blows air at an inclined downward angle.

[0019] The discharging device includes a discharging chute, a pushing mechanism corresponding to the lower end of the slider body of the invisible slider below the invisible slider positioning groove for pushing the invisible slider to exit the invisible slider positioning groove, and a blowing device with a blowing nozzle for blowing the slider exiting the slider positioning groove into the entrance end of the discharging chute; the discharging chute includes a finished product chute, a defective product chute and a defective product guide plate, and a channel opening corresponding to the entrance end of the defective product chute is opened on the side wall of the finished product chute, and the defective product guide plate is connected to a driving flipping mechanism for driving its flipping action, and the flipping of the defective product guide plate can achieve the connection of either the finished product chute or the defective chute.

[0020] A sensing detection device is provided around the workstation turntable between the slider blanking device and the pull tab blanking device, between the pull tab blanking device and the discharging device, and / or between the discharging device and the slider blanking device. Through the rotation of the workstation turntable, the sensing detection device can detect whether there is a slider or pull tab on each invisible slider fixture one by one.

[0021] The sensing detection device between the discharging device and the pull head unloading device includes a fixed installation rod fixedly installed at the lower end and a toggle sensor with a toggle rod. The toggle rod corresponds to the top of the pull head orientation fixture. When there is a pull head in the pull head orientation fixture, the toggle rod will be triggered when the workstation turntable rotates.

[0022] The sensing detection device between the discharging device and the slider unloading device also includes a fixed mounting rod fixedly installed at the lower end and a fixed plate arranged at the upper end of the fixed mounting rod. The toggle sensor is arranged on a movable plate, and the movable plate is connected to the fixed plate with a flip structure that can flip relative to the fixed plate. The toggle rod is arranged on one side of the toggle sensor and is arranged opposite to the rotation direction of the workstation. A rotating shaft is provided on the fixed plate, and the movable plate can be rotatably sleeved on the rotating shaft. An elastic reset structure is also provided between the fixed plate and the movable plate. The elastic reset structure is a reset spring connected between the fixed plate and the movable plate, and a reset limit component is provided on the fixed plate.

[0023] The pull-tab blanking and pushing device includes a pull-tab blanking bracket and a pull-tab blanking chute, a pull-tab pushing block, and a pushing mechanism arranged on the pull-tab blanking bracket. The upper surface of the pull-tab pushing block is provided with a pull-tab positioning groove corresponding to the blanking chute for the pull-tab to be embedded in. The pull-tab pushing block is connected to the pushing mechanism and is driven to slide thereby; a pull-tab clamping block is provided on the front end of the push-out end of the pull-tab pushing block, and the pull-tab clamping block is driven to rise and fall by a clamping block opening and closing mechanism arranged on the pull-tab pushing block to loosen or clamp the pull-tab when pushing the pull-tab for assembly.

[0024] The pull-tab blanking and pushing device further includes a riveted support column on the bottom surface of the front end after the pull-tab pushing block is pushed out. The bottom surface of the front end of the pull-tab pushing block and / or the upper end of the riveted support column are provided with an anti-blocking guide structure that facilitates the pull-tab pushing block to be pushed out and placed on the upper end of the riveted support column.

[0025] The assembly riveting device includes a riveting pressure rod, a driving cross rod, a lifting vertical rod and an eccentric lifting drive mechanism. The lower end of the lifting vertical rod is hinged to the eccentric lifting drive mechanism and is driven by it to realize positioning and lifting activities. One end of the driving cross rod is fixedly connected to the upper end of the lifting vertical rod. The upper end of the riveting pressure rod is fixedly connected to the driving cross rod, and the lower end thereof corresponds to the top of the pull-tab clamp block. When the lifting vertical rod is lifted and lowered, it drives the riveting pressure rod to rise and fall and press the pull-tab clamp block to realize riveting.

[0026] The assembly riveting device also includes a pull tab pressure rod and a pressure rod driving cylinder for driving the pull tab pressure rod to rise and fall. The pressure rod driving cylinder is arranged on the driving cross bar, and its piston rod is downwardly connected to the upper end of the pull tab pressure rod. The lower end of the pull tab pressure rod is used to press the pull tab during assembly riveting.

[0027] By adopting the above technical solution, the beneficial effect of the present invention is: the assembly machine with the above structural arrangement is used for the invisible slider assembly process of assembling and riveting the pull tab on the triangular ring of the invisible slider, and is adjusted to a more precise assembly state, more precise assembly alignment and precise assembly riveting according to the characteristics of its smaller components. The machine of the present invention can achieve the following excellent effects during use.

[0028] 1. Both the pull head and the pull tab can realize automatic feeding and unloading, and the feeding and unloading can be carried out continuously in a directional, neat and orderly manner;

[0029] 2. The pull head and pull tab are unloaded smoothly one by one, and the unloading and assembly riveting actions do not affect the previous and next processes, which can ensure one-to-one accurate unloading, and then accurately push to the position and assemble and rivet after unloading;

[0030] 3. The workstation turntable has multiple workstations and can rotate in indexed degrees, so that the machine can continuously perform feeding, unloading, testing, assembly, and discharging, etc., which can achieve higher production efficiency;

[0031] 4. The detection function can reduce invalid work and reduce the production of defective products;

[0032] 5. High degree of automation, good automation effect, and can effectively replace manual work;

[0033] 6. The mechanical structure is stable, the movement is smooth, and it is not prone to failure. The structural design is reasonable, the layout is compact, and the machine occupies a small area. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural diagram of an automated invisible slider and tab assembly machine according to the present invention;

[0035] Figure 2 This is a structural schematic diagram from another angle of an automated invisible slider and tab assembly machine according to the present invention;

[0036] Figure 3 This is a structural diagram of the workstation turntable involved in the present invention;

[0037] Figure 4 This is a structural diagram of a fixed mounting seat body in the invisible slider fixture according to the present invention;

[0038] Figure 5 This is a structural diagram of the guide and push component involved in the present invention;

[0039] Figure 6 This is a partial cross-sectional structural diagram of a slider blanking device according to the present invention;

[0040] Figure 7 It is a structural diagram of the pull tab blanking and pushing device, the assembly riveting device, and the stabilizing mechanism involved in the present invention;

[0041] Figure 8 This is a structural diagram from another angle of the pull tab blanking and pushing device, the assembly riveting device, and the stabilizing mechanism involved in the present invention;

[0042] Figure 9 It is a structural schematic diagram of the sensing detection device involved in the present invention;

[0043] Figure 10 The utility model is a structural schematic diagram of the invisible slider involved in the present invention.

[0044] In the picture:

[0045] Invisible slider body 10; nose hook 20; triangular ring 30; pull tab 40;

[0046] Machine base 1; station turntable 2; slider unloading device 4; unloading bracket 41; unloading slide 42; slideway 421;

[0047] Invisible slider body groove 4211; nose hook groove 4212; triangular ring groove 4213; discharge end 422;

[0048] Elastic material blocking structure 423; movable hole 4231; material blocking arm 4232;

[0049] Block 424; inclined guide surface 425; push arm 43; mounting slot 431; inclined surface 432;

[0050] Pin 433; tension spring 434; unloading drive cylinder 44; push block 45;

[0051] Pull tab unloading and pushing device 6; pull tab unloading bracket 61; pull tab unloading slide 62; pull tab pushing block 63;

[0052] Pull tab positioning slot 631; pushing mechanism 64; pull tab clamp 65; clamp opening and closing mechanism 66; riveted support column 67;

[0053] Assemble the riveting device 7; the riveting pressure rod 71; the driving crossbar 72; the lifting vertical rod 73;

[0054] Pull tab pressure rod 74; pressure rod drive cylinder 75; discharge device 8; discharge chute 81; finished product chute 811;

[0055] Defective product slide 812; defective product guide plate 813; channel opening 814; driving flip mechanism 815;

[0056] Invisible slider fixture 9; fixture mounting base 91; fixed mounting base body 911; movable base body 912;

[0057] Slider stopper 9121; U-shaped hinged fork 913; blocking portion 9131;

[0058] Inclined surface 9132; tension spring 914; contact roller 915;

[0059] Invisible slider positioning groove 92; slider body positioning groove 921; invisible slider push-in opening 9211;

[0060] Triangular ring positioning groove 922; mounting surface 9221; nose hook embedding groove 923;

[0061] Sensing detection device 90; fixed mounting rod 901; toggle rod 902; toggle sensor 903;

[0062] Fixed plate 904; movable plate 905; elastic reset structure 906; reset limit component 907;

[0063] Guide and push component 3; middle section 31; transition section 32; mounting support rod 33; elastic fine-tuning structure 34;

[0064] Stabilizing mechanism 5; stabilizing support frame 51; stabilizing drive cylinder 52; stabilizing pressure block 53; clamp pressure rod 531;

[0065] Triangular ring pressure rod 532; stable movable guide member 54. DETAILED DESCRIPTION

[0066] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0067] This embodiment involves a structure of an invisible slider, such as Figure 10 As shown, it includes an invisible slider body 10, a spring piece (not visible in the figure), a nose hook 20, a triangular ring 30 and a pull tab 40. There is an opening on the end of the pull tab 40. The triangular ring 30 is embedded in the opening at the end of the pull tab 40, and then the opening is riveted. This is the assembly purpose to be achieved by the assembly machine of the present invention. This product is a common product in life. The structural position, structural connection relationship and functional role of each component will not be described in detail here.

[0068] This embodiment discloses an automatic invisible slider pull tab assembly machine, such as Figures 1-9 As shown, it mainly includes a machine base 1 and a work station turntable 2 arranged on the machine base 1, an invisible slider feeding device (shown in detail in the figure), a slider blanking device 4, a pull tab feeding device (shown in detail in the figure), a pull tab blanking and pushing device 6, an assembly riveting device 7, a discharging device 8, an invisible slider clamp 9 and a sensing detection device 90, etc. The structural position connection relationship of each part is described in detail below with reference to the accompanying drawings.

[0069] The machine base 1 is a stable metal frame structure (the frame structure is not shown in detail in the figure), and its upper surface is a work surface for the installation and support of other mechanical components and equipment. The work station turntable 2 is a circular turntable mounted on the work surface, and its bottom is connected to the drive motor. There are multiple work stations evenly spaced along the circumferential edge of the work station turntable 2, such as Figure 3As shown, the driving motor is used to realize indexing rotation so that each workstation can perform corresponding process actions in turn. The invisible slider clamp 9 is arranged in multiple directions around the station turntable 2 to provide multi-station positioning for the invisible slider body 10 with the triangular ring 30. The slider blanking device 4 is used to blank the invisible slider body 10 with the triangular ring 30, and its input end is connected to the output end of the slider feeding device 3. The pull-tab blanking and pushing device 6 is used to blank the pull-tab 40 and push the pull-tab 40 to the assembly station connected to the triangular ring 30 on the invisible slider body 10, and its input end is connected to the output end of the invisible slider feeding device 5. The assembly riveting device 7 is arranged corresponding to the pushing station of the pull-tab blanking and pushing device 4, and is used to rivet the pull-tab 40 to the triangular ring 30 of the invisible slider body 10. The discharging device 9 is used to take out and discharge the invisible slider that has passed the assembly process from the invisible slider clamp 9. The slider blanking device 4, the pull-tab blanking and pushing device 6 and the discharging device 8 are sequentially arranged around the station turntable 2, such as Figure 1 and Figure 2 As shown, through the rotation of the work station turntable 2, each invisible slider clamp 9 thereon can correspond one by one to the output end of the slider blanking device 4, the output end of the pull tab blanking and pushing device 6, and the input end of the discharging device 8, thereby realizing the reasonable and orderly progress of automated feeding, blanking, pushing, assembling, riveting, and discharging.

[0070] Since the assembly machine of the present invention is specifically used for the assembly of invisible sliders, the invisible slider clamp 9 is a specific structural setting for the invisible slider and the working method of the assembly machine of the present invention. According to the working method of the assembly machine of the present invention, the invisible slider clamp 9 is a structural setting that can be swung to an inclined angle to facilitate the embedding of the slider body 10 and the triangular ring 30 of the invisible slider to achieve an assembled state, that is, the structural setting that can be tilted is conducive to the embedding of the invisible slider body 10 and the triangular ring 30, and is also conducive to the embedding of the triangular ring 30 to easily achieve the correct assembly state, such as Figure 3 shown.

[0071] like Figure 3 and Figure 4As shown, the invisible slider clamp 9 includes a working front end at one end (the end facing the outside of the work station turntable 2, used for positioning and clamping the invisible slider body 10 with the triangular ring 30 to assemble the pull tab and rivet the connection), a clamp mounting seat 91 at the other end for the installation connection end (for fixed installation and connection with the work station turntable 2) and an invisible slider positioning groove 92 arranged on the working front end of the clamp mounting seat 91; in this embodiment, the clamp mounting seat 91 includes a fixed mounting seat body 911 and a movable seat body 912, one end of the fixed mounting seat body 911 is fixedly installed and connected to the work station turntable 2 for the installation connection end, and the other end thereof is provided with a U-shaped hinged fork 913, the U-shaped opening of the U-shaped hinged fork 913 faces one side of the working front end, and the movable seat body 912 is embedded in the U-shaped The hinged fork 913 is hinged to the U-shaped arms of the U-shaped hinged fork 913 through a pin shaft. The U-shaped inner bottom surface of the U-shaped hinged fork 913 includes an upper blocking portion 9131 for blocking the movable seat body 912 and a lower inclined surface 9132 for providing a hinged activity space for the movable seat body 912. In this way, the hinged activity range of the movable seat body 912 is within the range of encountering the blocking portion 9131 and the inclined surface 9132. The invisible slider positioning groove 92 is provided on the movable seat body 912 as the working front end. A tension spring 914 is provided between the upper part of the movable seat body 912 and the U-shaped hinged fork 913 and the installation connection end of the fixed installation seat body 911. As shown in the figure, the setting of the tension spring 914 can enable the movable seat body 912 to reset to a vertical state after the tilted state.

[0072] The invisible slider positioning groove 92 is a working groove for the invisible slider body 10 with the triangular ring 30 to be embedded and positioned for subsequent working processes. With respect to the invisible slider structure and assembly method, the invisible slider positioning groove 92 of this embodiment includes a slider body positioning groove 921 for the invisible slider body 10 to be embedded from above and a triangular ring positioning groove 922 for the triangular ring 30 to be embedded on the side of the slider body positioning groove 921 toward the working front end. After the groove-structured invisible slider body 10 is embedded, the triangular ring 30 can be separated and positioned. In addition, the width of the triangular ring positioning groove 922 should be slightly larger than the width of the triangular ring 30. The upper side and the side facing the working front end are open openings for the triangular ring 30 of the invisible slider to be embedded from above, and the inner bottom is formed with a placing plane 9221 for placing the triangular ring. The triangular ring 30 of the invisible slider is embedded in the triangular ring positioning groove 922 and placed on the placing plane 9221, which can better limit the triangular ring and prevent it from shaking left and right. In the figure, the upper height of the slider body positioning groove 921 is higher than the upper surface of the clamp mounting seat 91, and the raised part forms an open invisible slider push-in port 9211 on the side facing the installation connection end. The upper surface of the movable seat body 912 corresponds to the middle section of the invisible slider push-in port 9211 and is provided with a slider stopper 9121 for preventing the slider body 10 of the invisible slider from shaking, which can better limit the slider body 10, and the structural setting of the middle section corresponding to the invisible slider push-in port 9211, the two sides of the invisible slider push-in port 9211 form a structure that is conducive to the slider blanking device 4 to push the material into the slider body positioning groove 921. As shown in the figure, in order to better limit the invisible slider body 10 with the triangular ring 30, a slider body positioning groove 921 and the triangular ring positioning groove 922 are connected, and the upper side thereof is an open nose hook embedding groove 923 for the nose hook 20 of the slider body 10 to be embedded from above. The groove width of the nose hook embedding groove 923 is smaller than the groove width of the triangular ring positioning groove 922. Through this structural setting, the triangular ring 30 can be better confined in the triangular ring positioning groove 922.

[0073] The slider blanking device 4 is a structural setting corresponding to the invisible slider fixture 9 swinging into an inclined angle state. Its detailed structure is described in detail later. Here, how to realize the invisible slider fixture 9 changing into an inclined state is explained. The present invention is implemented in this way. Below the corresponding slider blanking device 4 (that is, the blanking station corresponding to the invisible slider body 10 with the triangular ring 30) is provided with a guiding and pushing component 3 for guiding and pushing the invisible slider fixture 9 into an inclined angle state to correspond to the output end of the slider blanking device 4, such as Figure 1 、 Figure 3 and Figure 5As shown; the structural setting of the guiding and pushing component 3 in this embodiment is such that the guiding and pushing component 3 is an arc-shaped structural member, corresponding to the outer periphery of the work station turntable 2, and the concave side of the arc is the guiding and pushing working surface facing the lower part of the movable seat body 912 of the invisible slider fixture 9 and the U-shaped hinged fork 913, the guiding and pushing working surface includes a middle section 31 and transition sections 32 at both ends of the middle section 31, the radius of the middle section 31 is smaller than the radius of the two transition sections 32, and the middle section 31 smoothly transitions to connect the transition sections 32, and during the rotation of the work station turntable 2, the lower part of the movable seat body 912 and the guiding and pushing component When the cam 912 is in contact with the sliding member 3, the guide pushing member 3 is relatively stationary, so it can push the movable seat body 912 to move to an inclined state with the hinge position as the rotation axis, from the transition section 32 at one end of the contact to the middle section 31 and then to the transition section 32 at the other end. When it reaches the position of the middle section 32, it is the inclination angle of the blanking, that is, the optimal state for blanking. The setting of the transition section 32 is to advance the tilting position for the optimal state and delay the steering reset. The guide pushing member 3 with this structural setting can avoid mutual interference between the blanking of the slider body and the positioning groove 921 of the slider body during operation, resulting in failure to quickly correspond and failure to accurately blank. In this embodiment, the guiding and pushing component 3 is connected to the slider blanking device 4 through an installation support rod 33. If the space setting permits, the installation support rod 33 can also be directly connected to the machine base 1. In addition, the guiding and pushing component 3 is connected to the installation support rod 33 through an elastic fine-tuning structure 34. The elastic fine-tuning structure 34 shown in the figure is connected by a spring shaft rod with elastic fine-tuning function. The guiding and pushing component 3 is directionally nested on the installation support rod 33, and the spring shaft rod provides space for the guiding and pushing component 3 to move slightly. The setting function of this structure is that in actual mechanical assembly, there will be slight position differences in the installation positions of the various invisible slider clamps 9 on the work station turntable 2. By realizing elastic fine-tuning to adapt to these slight position differences, it is possible to guide and push all the invisible slider clamps 9 of the work station turntable 2 without the problem of being unable to adapt to the unsmooth movement. Further arrangements can be made here to achieve smooth guiding and pushing. As shown in the figure, the lower part where the movable seat body 912 is hinged to the U-shaped hinged fork 913 is provided with a contact roller 915 for pushing the movable seat body 912 to swing. It is easy to contact during guiding and pushing, and the contact roller 915 rolls after contact, making the movement smoother.

[0074] In addition, since the riveting is a downward action, the movable seat body 912 will swing when this downward force acts on the movable seat body 912, which will affect the precise alignment during assembly. To avoid this problem, the solution of this embodiment is to provide a stabilizing mechanism 5 around the invisible slider fixture 9 corresponding to the working position of the pull-tab blanking device 4 and the assembly riveting device 7 for stabilizing the invisible slider fixture 9 or the triangular ring 30 on the slider body 10 during assembly riveting. Figure 7 and Figure 8 As shown, the stabilizing mechanism 5 disclosed in this embodiment includes a stabilizing support frame 51, a stabilizing drive cylinder 52 arranged on the stabilizing support frame 51 and whose piston rod can be extended and retracted downward, a stabilizing pressure block 53 connected to the stabilizing drive cylinder 52, and a stabilizing movable guide 54 connected to the stabilizing support frame 51 and cooperating with the stabilizing pressure block 53 to realize guiding movement. The stabilizing pressure block 53 includes a clamp pressure rod 531 for stabilizing the movable seat body 912 of the invisible slider clamp 9 and a triangular ring pressure rod 532 for stabilizing the triangular ring 30. Before pushing the assembly pull tab 40, the stabilizing mechanism 5 is actuated, the clamp pressure rod 531 presses the movable seat body 912 to stabilize it against the blocking part 9131 and cannot rotate, and the triangular ring pressure rod 532 is embedded in the triangular ring positioning groove 922 to press the triangular ring 30, thereby achieving stability and improving the assembly accuracy.

[0075] The slider feeding device and the pull tab feeding device are respectively installed on the machine base 1 for uniformly oriented and orderly conveying of the sliders and pull tabs one by one, usually using a vibration feeding method. The input end of the slider blanking device 4 is connected to the output end of the slider feeding device, and the input end of the pull tab blanking and pushing device 6 is connected to the output end of the pull tab feeding device, so that the sliders and pull tabs can be conveyed one by one to the assembly station.

[0076] The pull head unloading device 4, the pull tab unloading and pushing device 6 and the discharging device 8 are sequentially arranged around the station turntable 2, and the sensing detection device 90 is respectively arranged around the station turntable 2 between the pull head unloading device 4 and the pull tab unloading and pushing device 6, between the pull tab unloading and pushing device 6 and the discharging device 8, and between the discharging device 8 and the pull head unloading device 4. Figure 1 and Figure 2 As shown, in this way, through the rotation of the work station turntable 2, each invisible slider clamp 9 thereon can correspond one by one to the discharge end of the slider blanking device 4, the output end of the pull-tab blanking and pushing device 6, the output end of the discharge device 8 and the detection of each sensor detection device 90, so that the mechanical work can perform effective assembly actions. The setting of the sensor detection device 90 here can also be added or removed according to the needs of actual conditions.

[0077] The slider unloading device 4 disclosed in this embodiment mainly includes an unloading bracket 41, an unloading slide 42, a push arm 43, an unloading drive cylinder 44 and a push block 45. The lower end of the unloading bracket 41 is fixedly connected to the work surface, such as Figure 1 、 Figure 2 and Figure 6As shown, the unloading chute 42 is fixedly mounted on the unloading bracket 41 at an angle, and a sliding channel 421 is provided along its length to prevent the invisible slider from detaching. The upper end of the sliding channel 421 is the input end of the slider unloading device 4 and the output end of the slider feeding device 41, while the lower end of the sliding channel 421 is the discharge end 422 of the slider that can correspond to the slider above the invisible slider positioning groove 92. The slideway 421 sequentially includes an invisible slider body groove 4211, a nose hook groove 4212, and a triangular ring groove 4213, which are interconnected. The nose hook groove 4212 has a smaller groove width than the invisible slider body groove 4211 and the triangular ring groove 4213. The triangular ring groove 4213 is an open groove along the downwardly inclined side of the inclined unloading chute and is open along its length. The triangular ring groove 4213 is a groove structure that functions as a directional triangular ring 30, thereby better exposing the triangular ring 30 on the slider body 10 in a directional manner, facilitating unloading, embedding, and assembly. The discharge end 422 is provided with an elastic material stop structure 423, which is used to prevent the slider bodies 10 that are neatly arranged and fed in from continuing to slide downward and affecting the unloading operation, thereby allowing the unloading operation of the bottom slider body 10 to proceed. The unloading drive cylinder 44 is installed on the unloading bracket 41, and its piston rod is connected to the upper end of the vertically arranged pushing arm 43. The pushing arm 43 is slidably connected to the unloading bracket 41 through a vertical sliding guide structure to achieve smooth directional sliding. One end of the pushing block 45 is connected to the lower end of the pushing arm 43, and the other end corresponds to the sliding channel 421. The action of the unloading drive cylinder 44 drives the pushing arm 43 to rise and fall, and at the same time drives the pushing block 45 to push the slider body to slide through the elastic blocking structure 423 to realize unloading.

[0078] Here, the push block 45 is not simply to realize the action of pushing down, but it cannot drive other slider bodies to rise when rising, and return to the original position to carry out the unloading action of the next slider body. Therefore, here, the push block 45 needs to be connected to the lower end of the push arm 43 through a push reset structure. The push reset structure is as follows: the lower end of the push arm 43 is provided with a mounting groove 431, and the upper top surface of the mounting groove 431 is an inclined surface 432 inclined downward toward the slide channel 421. One side of the push block 45 The end is hinged in the mounting groove 431 through a pin shaft 433, and a tension spring 434 is provided between the end of the push block 45 on one side of the pin shaft 433 and the inclined surface 432. The upper surface of the push block on the other side of the pin shaft 433 is against the lower edge of the inclined surface 432. The other end of the push block 45 is a U-shaped fork corresponding to the two ends of the upper side surface of the pull head or the pin in the slide channel 421. The corresponding discharge end 422 on the unloading slide 42 is provided with an upper and lower sliding groove (not visible in the figure) for the U-shaped fork to pass through and embed into the slide channel 421. With the above-mentioned structural arrangement, when the push arm 43 rises, the structural arrangement of the inclined surface 432 provides space for the push block 45 to rotate. When rising, the U-shaped fork hits the slider body of the slide channel 421, resulting in greater resistance. Therefore, the push block 45 can be easily rotated back to its original position without pushing the slider body upward. When descending, the two ends of the U-shaped fork are clamped on the two ends of the upper side of the slider. When descending, the upper surface of the push block 45 hits the lower edge of the inclined surface 432, and the push block 45 cannot rotate when the push arm 43 descends, thereby pushing the slider body down to discharge the material. In this embodiment, as shown in the figure, the upper end of the upper and lower sliding grooves is provided with a stop block 424 for pushing the U-shaped fork to rotate downward. The stop block 424 and the U-shaped fork are provided with an inclined guide surface 425 that matches each other. This structural arrangement can effectively push the U-shaped fork to rotate and reduce the wear caused by friction between the U-shaped fork and the slider surface when the U-shaped fork rises.

[0079] In actual use, there are cases where individual triangular rings are oriented crookedly or non-standardly. In order to reduce the occurrence of these situations, the slider unloading device 4 in this embodiment is further provided with a blowing device with a blowing pipe (not shown in the figure). The air outlet end of the blowing pipe is arranged on the outer side of the triangular ring exposed when the slider slides down the slide channel 421, and air is blown at an inclined downward angle. Blowing is performed before the slider body is pushed down into the invisible slider positioning groove 92, which can keep the triangular ring 30 on the slider body 10 in a drooping state, which is conducive to achieving a better assembly position after embedding into the invisible slider positioning groove 92.

[0080] The elastic material blocking structure 423 includes a movable hole 4231 opened on the side wall of the sliding channel 421, a material blocking arm 4232 passed through the movable hole 4231 and an elastic connecting piece (not visible in the figure) elastically supporting the inner end of the material blocking arm 4232 protruding from the inner wall of the sliding channel 421. The inner end of the material blocking arm 4232 is an end structure that facilitates the pull head or pin to slide from top to bottom and guide the material discharge left and right.

[0081] The discharging device 8 is as follows Figure 2 As shown in the figure, it includes a discharge chute 81, a pushing mechanism (not visible in the figure) corresponding to the bottom of the invisible slider positioning groove 92 for pushing the lower end of the slider body so that the slider exits the invisible slider positioning groove 92, and a blowing device (not visible in the figure) with a blowing nozzle (not visible in the figure) for blowing the slider exiting the invisible slider positioning groove 92 into the entrance end of the discharge chute 81. By setting up the sensing detection device 90, it is possible to detect the pull head, the latch and the assembly conditions of the two. If there is no problem in the detection, the assembly is qualified, and if there is a problem, it is unqualified. In order to distinguish qualified and unqualified materials and discharge them separately, the discharge chute 81 in this embodiment includes a finished product chute 811, a defective chute 812 and a defective guide plate 813. The side wall of the finished product chute 811 is provided with a channel opening 814 corresponding to the entrance end of the defective chute 812. The defective guide plate 813 is connected to a driving flipping mechanism 815 for driving its flipping action. By flipping the defective guide plate 813, one of the finished product chute or the defective chute can be turned on. Specifically, the action of the driving flipping mechanism 815 is controlled according to the detection structure of the sensing detection device 90 to achieve distinguished discharge.

[0082] The sensing detection device 90 is used to detect whether there is a slider or a pull tab on each invisible slider fixture 9. In the structure of this embodiment, the sensing detection device 90 arranged between the slider blanking device 4 and the pull tab blanking and pushing device 6, and between the pull tab blanking and pushing device 6 and the discharging device 8 is a sensing detection device for distance detection or metal detection, and the sensing detection device 90 between the discharging device 8 and the slider blanking device 4 is different from the previous two, because when there is a problem with the detection of this part, it indicates that there is an object in the invisible slider positioning groove 92, then it is impossible to continue the blanking of the next slider body, and a cleaning process is required. Therefore, the sensing detection device 90 between the discharging device 8 and the slider blanking device 4 in this embodiment, such as Figure 9As shown, it includes a fixed mounting rod 901 fixedly installed at the lower end and a toggle sensor 903 with a toggle rod 902. The toggle rod 902 corresponds to the top of the invisible slider fixture 9. The height is set at a height at which the toggle rod 902 can be toggled by the invisible slider when there is still an invisible slider in the invisible slider positioning groove 92. In this way, when there is still an invisible slider on the invisible slider fixture 9, the toggle rod 902 will be touched when the workstation turntable 2 rotates, triggering the sensor detection device 90 to remind that there is a slider that needs to be processed. At this time, the pin assembly machine can be controlled to temporarily operate, the workstation turntable 2 stops rotating, and the slider of the invisible slider fixture 9 is manually cleaned. In order to facilitate manual cleaning of the pull head, in this embodiment, a fixed plate 904 is provided at the upper end of the fixed mounting rod 901, and the toggle sensor 903 is provided on a movable plate 905. The movable plate 905 is connected to the fixed plate 904 with a flip structure that can be flipped relative to the fixed plate 904. As shown in the figure, the toggle rod 902 is provided on one side of the toggle sensor 903 and is arranged opposite to the rotation direction of the work station turntable 2. A rotating shaft is provided on the fixed plate 904, and the movable plate 905 is hinged on the rotating shaft, so that it can be manually flipped and is easy to operate. It needs to be reset after flipping. When the slider is turned back to its original position, an elastic reset structure 906 is provided between the fixed plate 904 and the movable plate 905. As shown in the figure, a spring is connected between the fixed plate 904 and the movable plate 905 and a reset limit component 907 is provided on the fixed plate 904. The spring is stretched when flipping, and the spring elastic force retracts when the flipping is released to pull the movable plate 905 to flip back. When it contacts the reset limit component, it is stuck and the reset is completed. Through this structural setting, when the slider is stuck by the toggle rod 902, the toggle rod 902 can be flipped open through the above structure to take out the invisible slider.

[0083] like Figure 7 and Figure 8As shown, the pull-tab unloading and pushing device 6 includes a pull-tab unloading bracket 61 and a pull-tab unloading chute 62, a pull-tab pushing block 63, and a pushing mechanism 64 obliquely arranged on the pull-tab unloading bracket 61. The upper surface of the pull-tab pushing block 63 is provided with a pull-tab positioning groove 631 corresponding to the unloading chute 62 for the pull-tab 40 to be embedded. The pull-tab pushing block 63 is connected to the pushing mechanism 64 and is driven to slide by it; a pull-tab clamping block 65 is provided on the front end of the push-out of the pull-tab pushing block 63, and the pull-tab clamping block 65 is driven by a clamping block opening and closing mechanism 66 arranged on the pull-tab pushing block 63. The lifting and lowering realizes loosening or clamping of the pull tab 40 when pushing the pull tab 40 for assembly, so that the pull tab feeding and pushing device 6 sequentially feeds the pull tabs into the pull tab positioning groove 631 one by one, and before the pushing mechanism 64 acts to push out the pull tab pushing block 63, the clamping block opening and closing mechanism 66 first acts to drive the pull tab clamping block 65 to clamp the open end of the pull tab 40 in the pull tab positioning groove 631, and then the pushing mechanism 64 acts to push the clamped pull tab to the corresponding assembly position of the triangular ring 30 in front of the slider body on the corresponding invisible slider fixture 9. Such pull tab pushing can ensure smooth and accurate pushing into place. In this embodiment, since the front end of the pull-tab pushing block 63 is in a suspended state after being pushed out, in order to avoid this state from tilting downward under the influence of riveting pressure, resulting in a decrease in the precise correspondence, the pull-tab blanking and pushing device 6 also includes a riveting support column 67 on the bottom surface of the front end after the pull-tab pushing block 63 is pushed out. The bottom surface of the front end of the pull-tab pushing block 63 and / or the upper end of the riveting support column 67 are provided with an anti-blocking introduction structure that is conducive to the push-out of the pull-tab pushing block 63 and is placed on the upper end of the riveting support column 67. As shown in the figure, corresponding guide support blocks are provided on the bottom surface of the front end of the pull-tab pushing block 63 and the riveting support column 67. The two guide support blocks are provided with guide inclined surfaces on top. The guidance of the guide inclined surfaces can avoid the situation of being stuck and unable to push forward, reduce wear, and maintain the riveting support height. Through the stable cooperation of the pull tab blanking and pushing device 6 of this structure and the above-mentioned stabilizing mechanism, the slider body, the triangular ring and the pull tab can be positioned and fixed, and pushed to the assembly riveting station stably and accurately, and can be kept level to ensure that the riveting will not be uneven.

[0084] The assembly riveting device 7 disclosed in this embodiment is as follows: Figure 7As shown, it includes a riveting pressure rod 71, a driving cross rod 72, a lifting vertical rod 73 and an eccentric lifting drive mechanism (not visible in the figure). The lower end of the lifting vertical rod 73 is hinged to the eccentric lifting drive mechanism and is driven by it to realize positioning and lifting activities. The eccentric lifting drive mechanism is a mechanism that is linked to the rotating main shaft of the workstation turntable 2 at the bottom of the machine base. It has an eccentric wheel, and the lifting and lowering activities of the lifting vertical rod 73 are realized through the movement of the eccentric wheel. One end of the driving cross rod 72 is fixedly connected to the upper end of the lifting vertical rod 73, and the upper end of the riveting pressure rod 71 is fixedly connected to the driving cross rod 72, and its lower end corresponds to the top of the pull tab clamp 65. When the lifting vertical rod 73 is lifted, it drives the riveting pressure rod 72 to rise and fall and press the pull tab clamp 65 to realize the riveting closure of the pull tab opening and connect it to the triangular ring. In order to avoid the pull tab from tilting when the riveting is carried out by lowering and pressing, which affects the flatness of the riveting or makes the riveting unsightly, the assembly riveting device 7 also includes a pull tab pressure rod 74 and a pressure rod driving cylinder 75 for driving the pull tab pressure rod 74 to rise and fall. The pressure rod driving cylinder 75 is arranged on the driving cross bar 72, and its piston rod is connected downward to the upper end of the pull tab pressure rod 74. The lower end of the pull tab pressure rod 74 is used to press the pull tab 40 during assembly riveting. When riveting, the lower end of the pull tab pressure rod 74 also presses the rest of the pull tab, thereby stabilizing the pull tab.

[0085] To sum up, the mechanical structure setting of the assembly machine of the present invention is an automated assembly machine for the existing invisible slider, which assembles the pull tab on the triangular ring of the slider body by riveting. It fills the gap of automatic assembly of invisible slider pull tabs on the current production line and has the following advantages: it can greatly improve the production efficiency of this slider, greatly reduce labor costs, the mechanical automation works reasonably, stably and reliably, the mechanical structure is compact and stable and not prone to failure, and it occupies a small area. Its working method and actions are carried out reasonably and orderly, there will be no conflicts between actions, and it can be assembled efficiently. The work station status can be detected in real time during the work process, which can reduce invalid actions and improve the product qualification rate.

[0086] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. An automated invisible slider pull tab assembly machine, characterized in that: It includes a machine base and a work station turntable arranged on the machine base, an invisible slider feeding device, a slider blanking device, a pull tab feeding device, a pull tab blanking pushing device, an assembly riveting device and a discharging device. A plurality of invisible slider clamps are arranged on the upper circumference of the work station turntable to provide multi-station positioning of the invisible slider body. The slider blanking device is used to blank the invisible slider body, and its input end is connected to the output end of the invisible slider feeding device. The pull tab blanking pushing device is used to blank the pull tab and push the pull tab to the assembly station connected to the triangular ring on the invisible slider body, and its input end is connected to the output end of the invisible slider feeding device. The output end of the pull-tab feeding device, the discharging device is used to take out and discharge the invisible slider that has passed the assembly process from the invisible slider fixture, the slider blanking device, the pull-tab blanking and pushing device and the discharging device are sequentially arranged around the station turntable, and through the rotation of the station turntable, each invisible slider fixture thereon can correspond to the output end of the slider blanking device, the output end of the pull-tab blanking and pushing device, and the input end of the discharging device one by one in sequence, and the assembly riveting device is arranged corresponding to the pushing station of the pull-tab blanking and pushing device, and is used to rivet the pull tab to the triangular ring of the invisible slider body; The invisible slider clamp includes a clamp mounting seat with a working front end at one end and a mounting connection end at the other end, and an invisible slider positioning groove arranged on the working front end of the clamp mounting seat. The invisible slider positioning groove includes a slider body positioning groove provided through the clamp mounting seat for the slider body of the invisible slider to be embedded from above, and a triangular ring positioning groove provided on the side of the slider body positioning groove facing the working front end. The upper side and the side facing the working front end of the triangular ring positioning groove are open openings for the triangular ring of the invisible slider to be embedded from above, and the inner bottom is formed with a placing plane for placing the triangular ring. The triangular ring of the invisible slider is embedded in the triangular ring positioning groove and placed on the placing plane to prevent it from shaking left and right. The invisible slider clamp is a structural setting that can be swung to an inclined angle to facilitate the embedding of the slider body and the triangular ring of the invisible slider to achieve an assembled state. The slider blanking device is a structural setting corresponding to the invisible slider clamp swinging to an inclined angle state. A guiding and pushing component for guiding and pushing the invisible slider clamp to an inclined angle state to correspond to the output end of the slider blanking device is provided below the corresponding slider blanking device; a stabilizing mechanism for stabilizing the invisible slider clamp or the triangular ring on the slider body during assembly and riveting is also provided around the invisible slider clamp corresponding to the working position of the pull tab blanking device and the assembly riveting device.

2. The automatic invisible slider pull tab assembly machine according to claim 1, characterized in that: The U-shaped hinged fork is fixed to the workbench and has two hinged ends, and the hinged ends are fixed on the workbench, and the hinged ends are fixed on the workbench, so that the workbench can be fixed on the workbench.

3. The automatic invisible slider pull tab assembly machine according to claim 1, characterized in that: The guiding and pushing component is an arc-shaped structural member, and the concave side of the arc is a guiding and pushing working surface. The guiding and pushing working surface includes a middle section and transition sections at both ends of the middle section. The radius of the middle section is smaller than the radius of the two transition sections, and the middle section smoothly transitions to connect the transition sections. And / or, the stabilizing mechanism includes a stabilizing support frame, a stabilizing drive cylinder arranged on the stabilizing support frame and whose piston rod can be extended and retracted downward, a stabilizing pressure block connected to the stabilizing drive cylinder, and a stabilizing movable guide connected to the stabilizing support frame and cooperating with the stabilizing pressure block to realize guiding movement, and the stabilizing pressure block includes a clamp pressure rod for stabilizing the invisible slider clamp and a triangular ring pressure rod for stabilizing the triangular ring.

4. An automated invisible slider pull tab assembly machine according to any one of claims 1 to 3, characterized in that: The slider unloading device includes a unloading bracket, a unloading slide, a pushing arm, an unloading drive cylinder and a pushing block. The unloading slide is fixedly mounted on the unloading bracket at an angle. It is provided with a sliding channel extending along the length direction to prevent the invisible slider from detaching. The upper end of the sliding channel is the input end for connecting the slider unloading device with the output end of the slider feeding device, and the lower end is the discharge end corresponding to the top of the invisible slider clamp. The sliding channel includes an invisible slider main body groove, a nose hook groove and a triangular ring groove in sequence, and the three are connected. The groove width of the nose hook groove is smaller than the groove width of the invisible slider main body groove and the triangular ring groove. The triangular ring groove is on the inclined downward side of the inclined unloading slide and along its length direction. It is an open groove, and the triangular ring groove is a groove structure with a directional triangular ring function. The discharging end is provided with an elastic blocking structure. The unloading drive cylinder is installed on the unloading bracket, and its piston rod is connected to the upper end of the vertically arranged pushing arm. The pushing arm is slidably connected to the unloading bracket through a vertical sliding guide structure. One end of the pushing block is connected to the lower end of the pushing arm, and the other end thereof corresponds to the unloading activity of rising and falling in the sliding channel to push the slider to slide over the elastic blocking structure; the slider unloading device also includes a blowing device with an air pipe, and the air outlet end of the blowing pipe is arranged corresponding to the outer side of one side of the triangular ring when the invisible slider slides down the sliding channel, and blows air at an inclined downward angle.

5. An automated invisible slider pull tab assembly machine according to any one of claims 1 to 3, characterized in that: The discharging device includes a discharging chute, a pushing mechanism corresponding to the lower end of the slider body of the invisible slider below the invisible slider positioning groove for pushing the invisible slider to exit the invisible slider positioning groove, and a blowing device with a blowing nozzle for blowing the slider exiting the slider positioning groove into the entrance end of the discharging chute; the discharging chute includes a finished product chute, a defective product chute and a defective product guide plate, and a channel opening corresponding to the entrance end of the defective product chute is opened on the side wall of the finished product chute, and the defective product guide plate is connected to a driving flipping mechanism for driving its flipping action, and the flipping of the defective product guide plate can achieve the connection of either the finished product chute or the defective chute.

6. An automated invisible slider pull tab assembly machine according to any one of claims 1 to 3, characterized in that: A sensing detection device is provided around the workstation turntable between the slider blanking device and the pull tab blanking device, between the pull tab blanking device and the discharging device, and / or between the discharging device and the slider blanking device. Through the rotation of the workstation turntable, the sensing detection device can detect whether there is a slider or pull tab on each invisible slider fixture one by one.

7. An automated invisible slider pull tab assembly machine according to any one of claims 1 to 3, characterized in that: The pull-tab blanking and pushing device includes a pull-tab blanking bracket and a pull-tab blanking chute, a pull-tab pushing block, and a pushing mechanism arranged on the pull-tab blanking bracket. The upper surface of the pull-tab pushing block is provided with a pull-tab positioning groove corresponding to the blanking chute for the pull-tab to be embedded in. The pull-tab pushing block is connected to the pushing mechanism and is driven to slide thereby; a pull-tab clamping block is provided on the front end of the push-out end of the pull-tab pushing block, and the pull-tab clamping block is driven to rise and fall by a clamping block opening and closing mechanism arranged on the pull-tab pushing block to loosen or clamp the pull-tab when pushing the pull-tab for assembly.

8. The automatic invisible slider pull tab assembly machine according to claim 6, characterized in that: The assembly riveting device includes a riveting pressure rod, a driving cross rod, a lifting vertical rod and an eccentric lifting drive mechanism. The lower end of the lifting vertical rod is hinged to the eccentric lifting drive mechanism and is driven by it to realize positioning and lifting activities. One end of the driving cross rod is fixedly connected to the upper end of the lifting vertical rod. The upper end of the riveting pressure rod is fixedly connected to the driving cross rod, and the lower end thereof corresponds to the top of the pull tab clamp. When the lifting vertical rod is lifted and lowered, it drives the riveting pressure rod to rise and fall and press the pull tab clamp to realize riveting; the assembly riveting device also includes a pull tab pressure rod and a pressure rod driving cylinder for driving the pull tab pressure rod to rise and fall. The pressure rod driving cylinder is arranged on the driving cross rod, and its piston rod is downwardly connected to the upper end of the pull tab pressure rod. The lower end of the pull tab pressure rod is used to press the pull tab during assembly riveting.

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