A zipper threading and stop device and a zipper assembly machine containing the same

Abstract

The present invention discloses a zipper threading and stop device and a zipper assembly machine containing the device; the zipper threading and stop device of the present invention comprises a clamping and transferring unit, a zipper threading unit, and a stop unit; the stop unit can be applied to both forward and reverse threading and stop processing operations, that is, the zipper threading and stop device has the advantages of novel structural design, high degree of automation, strong adaptability, and high degree of flexible manufacturing. In addition, a zipper assembly machine of the present invention comprises a zipper conveying device, a continuous zipper tape positioning device, a continuous zipper tape cutting device, and a zipper threading and stop device; the zipper threading and stop device adopts the above-mentioned zipper threading and stop device; the zipper assembly machine can automatically and efficiently realize zipper cutting, threading, and stop operations, and can be applied to both forward and reverse threading and stop processing operations, with strong adaptability and high degree of flexible manufacturing.

Description

Technical Field

[0001] The invention relates to the technical field of zipper production and processing equipment, and in particular to a zipper threading and stop device and a zipper assembly integrated machine containing the device. Background Art

[0002] The manufacture of a zipper requires many processes, including the cutting process of cutting the continuous semi-finished zipper tape into a single zipper according to the specified length at the upper end of the finished zipper; the threading process of inserting the slider into the chain teeth from the upper end of the zipper; and the top stop process of forming the top stop at the upper end of the chain teeth.

[0003] For nylon zippers, the side where the chain elements protrude from the tape is the front side of the zipper, and the side opposite to it is the back side of the zipper. After the threading process, the slider is inserted into the chain elements. When the slider's pull tab is on the front side of the zipper, this threading process is called the positive threading process; when the slider's pull tab is on the back side of the zipper, this threading process is called the reverse threading process.

[0004] Nowadays, the automation and integration of zipper manufacturing equipment are getting higher and higher, so there are all-in-one machines for cutting, threading and stopping, which can automatically complete the processes of cutting, threading and stopping. However, the existing all-in-one machines for cutting, threading and stopping can only meet one form of zipper stopping process. The all-in-one machine suitable for forward zipper cannot be used for reverse zipper stopping operation, and the all-in-one machine suitable for reverse zipper cannot be used for forward zipper stopping operation. In the actual zipper production process, in order to meet the requirements of forward and reverse zipper stopping, two all-in-one machines are needed, which will increase the manufacturer's purchase cost. Summary of the invention

[0005] The purpose of the present invention is to provide a zipper threading and stop device to address the deficiencies of the prior art. The zipper threading and stop device has a novel structural design and a high degree of automation. It can be used for both forward and reverse zipper threading and stop processing operations, has strong adaptability and a high degree of flexible manufacturing.

[0006] Another object of the present invention is to provide a zipper assembly machine to address the deficiencies in the prior art. The zipper assembly machine can automatically and efficiently perform zipper cutting, zipper threading, and stop-stop processing, and can be used for both forward and reverse zipper threading and stop-stop processing, with strong adaptability and a high degree of flexible manufacturing.

[0007] To achieve the above object, the present invention is implemented through the following technical solutions.

[0008] A zipper threading and stop device comprises a clamping and transferring unit, a zipper threading unit and a stop unit, wherein the zipper threading unit and the stop unit are respectively located on a walking path of the clamping and transferring unit, and the zipper threading unit and the stop unit are sequentially arranged at intervals along the walking path of the clamping and transferring unit;

[0009] The stop unit includes a fixed mounting frame, an upper end portion of the fixed mounting frame is equipped with a lifting movable frame and a movable frame driving cylinder, an outer extension end portion of a piston rod of the movable frame driving cylinder is connected to the lifting movable frame, the lifting movable frame is equipped with an ultrasonic transducer arranged vertically and electrically connected to an ultrasonic generator, a driving end of the ultrasonic transducer is equipped with a welding upper die, and a lower end portion of the welding upper die is provided with two upper die forming parts which are opposite to each other and arranged at intervals, and a lower surface of each upper die forming part is respectively provided with an upper die front side forming groove and an upper die rear side forming groove which are arranged at intervals at front and rear;

[0010] The lower end side of the welding upper die is equipped with a front welding lower die and a rear welding lower die located at the rear end side of the front welding lower die, and the lifting movable frame is equipped with a front lower die driving mechanism for driving the front welding lower die to move up and down, and a rear lower die driving mechanism for driving the rear welding lower die to move up and down; the front welding lower die is respectively provided with lower die front side forming grooves corresponding to the front side forming grooves of each upper die, and the rear welding lower die is respectively provided with lower die rear side forming grooves corresponding to the rear side forming grooves of each upper die;

[0011] The zipper threading and stop device also includes two monofilament supply assemblies, one of which is located on the left end side of the welding upper mold, and the other is located on the right end side of the welding upper mold; the fixed mounting frame is equipped with a switching drive assembly, and the two monofilament supply assemblies are respectively installed on the driving ends of the switching drive assembly.

[0012] Wherein, the front lower die driving mechanism and the rear lower die driving mechanism respectively include a lower die driving mounting bracket screwed on the lifting movable frame, each lower die driving mounting bracket is screwed with a lower die driving lifting cylinder for up and down movement, and the outer extension end of the piston rod of each lower die driving lifting cylinder is respectively equipped with a lower die driving lifting bracket;

[0013] The front side welding lower die is installed on the lower end of the lower die driving lifting bracket of the front side lower die driving mechanism, and the rear side welding lower die is installed on the lower end of the lower die driving lifting bracket of the rear side lower die driving mechanism.

[0014] Among them, the switching drive component includes a switching drive movable frame, a switching drive cylinder screwed on the fixed mounting frame and moving horizontally forward and backward, the extended end of the piston rod of the switching drive cylinder is connected to the switching drive movable frame, and each of the monofilament supply components is respectively installed on the switching drive movable frame.

[0015] Among them, the monofilament supply component includes a monofilament supply mounting frame installed on the switching drive movable frame, and the monofilament supply mounting frame is equipped with a monofilament cutting and pushing mechanism, and a monofilament fixed-length transfer mechanism for supplying the monofilament at a fixed length to the monofilament cutting and pushing mechanism; the zipper threading and stop device also includes a monofilament feeder that continuously supplies the monofilament to the monofilament fixed-length transfer mechanism.

[0016] The monofilament cutting and pushing mechanism comprises a movable slider, the movable slider is provided with a monofilament bin opening toward the welding upper die side, and the end of the movable slider is provided with a slider feed port connected with the monofilament bin and for the monofilament to enter the monofilament bin;

[0017] The monofilament supply mounting frame is screwed with a cutting drive cylinder that moves along the opening direction of the monofilament silo, a cutting drive block is installed at the outer extension end of the piston rod of the cutting drive cylinder, and a movable slider is installed on the cutting drive block;

[0018] The monofilament supply mounting frame is equipped with a bending forming block located at the opening position of the monofilament bin of the movable slider, and the bending forming block is provided with a bending forming groove that completely penetrates along the opening direction of the monofilament bin; when the cutting driving cylinder pushes the cutting driving block and the movable slider moves toward the welding upper die side, the movable slider and the bending forming block move relative to each other, and the monofilament in the monofilament bin entering the movable slider is cut off at the slider feed port;

[0019] A movable push rod is embedded in the monofilament silo of the movable slider, a push driving cylinder is screwed on the cutting drive block, a push driving block is installed on the extended end of the piston rod of the push driving cylinder, and the end of the movable push rod is connected to the push driving block; when the push driving cylinder pushes the push driving block and the movable push rod moves toward the bending forming block, the movable push rod pushes the cut monofilament into the bending forming groove of the bending forming block. During this process, the cut monofilament passes through the bending forming groove of the bending forming block and is extruded into a "C" shape.

[0020] The fixed-length conveying mechanism for the single wire includes an upper fixed wire guide block and a lower movable wire guide block located at the lower end side of the upper fixed wire guide block, which are respectively arranged vertically. The upper fixed wire guide block is screwed on the single wire supply mounting frame. The single wire supply mounting frame is provided with a wire guide block driving cylinder for upward and downward movement corresponding to the lower movable wire guide block. The outer extension end of the piston rod of the wire guide block driving cylinder is provided with a wire guide block lifting seat. The lower movable wire guide block is installed at the lower end of the wire guide block lifting seat.

[0021] The upper fixed wire guide block is provided with an upper wire guide hole which completely penetrates from top to bottom and allows the monofilament to pass from top to bottom, and the upper fixed wire guide block is provided with an upper air-avoiding gap which is opened laterally and communicated with the upper wire guide hole; the monofilament supply mounting frame is provided with a movable swing arm through a pivot hinge on the side of the upper fixed wire guide block, one end of the movable swing arm is provided with a movable pressure wheel which extends into the upper air-avoiding gap, and the other end of the movable swing arm is provided with a tension spring which prompts the movable pressure wheel to press the monofilament passing through the upper wire guide hole;

[0022] The lower movable wire guide block is provided with a lower wire guide hole which completely penetrates from top to bottom and allows the monofilament to pass from top to bottom, and the lower movable wire guide block is provided with a lower end avoidance gap which opens laterally and is connected with the lower wire guide hole; the wire guide block lifting seat is hinged with a monofilament movable pressure rod on the side of the lower movable wire guide block through a pivot, and the free end of the monofilament movable pressure rod is wedge-shaped and extends into the lower end avoidance gap of the lower movable wire guide block; the wire guide block lifting seat is provided with a compression spring which pushes the monofilament movable pressure rod upward on the lower end side of the monofilament movable pressure rod, and the elastic force of the compression spring causes the free end of the monofilament movable pressure rod to press the monofilament passing through the lower wire guide hole.

[0023] The zipper threading and stop device further comprises a welding support assembly located at the lower end side of the front welding lower die and the rear welding lower die.

[0024] Wherein, the welding support assembly comprises a welding support mounting frame, the upper end of the welding support mounting frame is provided with a support block guide seat, and the support block guide seat is provided with a support block guide groove opening upward;

[0025] A front movable supporting block and a rear movable supporting block which are respectively arranged vertically are embedded in the supporting block guide groove of the supporting block guide seat, the front movable supporting block is located directly below the front welding lower die, and the rear movable supporting block is located directly below the rear welding lower die;

[0026] The welded support mounting frame is screwed with a front support driving cylinder for up and down movement corresponding to the front movable support block, and a front support driving rod is installed at the outer extension end of the piston rod of the front support driving cylinder, and the upper end of the front support driving rod is connected to the lower end of the front movable support block;

[0027] The welding support mounting frame is screwed with a rear support driving cylinder that moves up and down corresponding to the rear movable support block. The extended end of the piston rod of the rear support driving cylinder is equipped with a rear support driving rod, and the upper end of the rear support driving rod is connected to the lower end of the rear movable support block.

[0028] Among them, the clamping and transferring unit includes a left-side driven linear module with synchronous action and a right-side driven linear module located on the right end side of the left-side driven linear module. The left-side driven linear module and the right-side driven linear module are opposite to each other left and right and arranged at intervals. The driving end of the left-side driven linear module is equipped with a left-side electric cylinder with left and right horizontal actions, and the driving end of the right-side driven linear module is equipped with a right-side electric cylinder with left and right horizontal actions; the driving end of the left electric cylinder is equipped with a left-side air clamp, and the driving end of the right electric cylinder is equipped with a right-side air clamp.

[0029] A zipper assembly machine comprises a zipper conveying device, a continuous zipper tape positioning device, a continuous zipper tape cutting device and a zipper threading and stop device; the zipper threading and stop device adopts any one of the above zipper threading and stop devices.

[0030] The beneficial effects of the present invention are as follows: the zipper threading and stop device described in the present invention comprises a clamping and transferring unit, a zipper threading unit and a stop unit, the zipper threading unit and the stop unit are respectively located on the walking path of the clamping and transferring unit, and the zipper threading unit and the stop unit are sequentially spaced along the walking path of the clamping and transferring unit; the stop unit comprises a fixed mounting frame, the upper end of the fixed mounting frame is equipped with a lifting movable frame and a movable frame driving cylinder, the outer extension end of the piston rod of the movable frame driving cylinder is connected to the lifting movable frame, the lifting movable frame is equipped with an ultrasonic transducer which is vertically arranged and electrically connected to the ultrasonic generator, the driving end of the ultrasonic transducer is equipped with a welding upper mold, the lower end of the welding upper mold is provided with two upper mold forming parts which are opposite to each other and spaced apart, and the lower surface of each upper mold forming part is respectively provided with a front and rear spacing. The front forming groove of the upper mold and the rear forming groove of the upper mold are arranged at intervals; the lower end side of the welding upper mold is equipped with a front welding lower mold and a rear welding lower mold located at the rear end side of the front welding lower mold, and the lifting movable frame is equipped with a front lower mold driving mechanism for driving the front welding lower mold to move up and down, and a rear lower mold driving mechanism for driving the rear welding lower mold to move up and down; the front welding lower mold is respectively provided with a lower mold front forming groove corresponding to each upper mold front forming groove, and the rear welding lower mold is respectively provided with a lower mold rear forming groove corresponding to each upper mold rear forming groove; the zipper threading and stopping device also includes two monofilament supply assemblies, one of which is located at the left end side of the welding upper mold, and the other monofilament supply assembly is located at the right end side of the welding upper mold; the fixed mounting frame is equipped with a switching drive assembly, and the two monofilament supply assemblies are respectively installed at the driving ends of the switching drive assembly. Through the above-mentioned structural design, the zipper threading and stop-attaching device of the present invention can be applied to the zipper threading and stop-attaching processing operations for both forward and reverse zipper threading, that is, the zipper threading and stop-attaching device of the present invention has the advantages of novel structural design, high degree of automation, strong adaptability and high degree of flexible manufacturing.

[0031] Another beneficial effect of the present invention is that the zipper assembly machine described in the present invention includes a zipper conveying device, a continuous zipper tape positioning device, a continuous zipper tape cutting device, and a zipper threading and stop device; the zipper threading and stop device adopts any of the above-mentioned zipper threading and stop devices. Through the above-mentioned structural design, the zipper assembly machine of the present invention can automatically and efficiently realize the zipper cutting, threading, and stop operation, and can be applied to the stop processing operation of the forward and reverse zipper threading, with strong adaptability and high degree of flexible manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention is further described below with the aid of the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0033] Figure 1 It is a structural schematic diagram of the zipper threading and stopping device of the present invention.

[0034] Figure 2 It is a structural schematic diagram of the marking stop unit of the present invention.

[0035] Figure 3 It is a partial structural schematic diagram of the upper stop unit of the present invention.

[0036] Figure 4 It is a schematic structural diagram of the monofilament supply assembly and the switching drive assembly of the present invention.

[0037] Figure 5 It is a structural schematic diagram of the monofilament cutting and pushing mechanism and the monofilament fixed-length transferring mechanism of the present invention.

[0038] Figure 6 It is a cross-sectional schematic diagram of the monofilament cutting and pushing mechanism of the present invention.

[0039] Figure 7 It is a structural schematic diagram of the upper stop welding part of the present invention.

[0040] Figure 8 It is a structural schematic diagram of the upper stop welding part of the present invention from another perspective.

[0041] Fig. 9 It is a partial structural schematic diagram of the upper stop welding part of the present invention.

[0042] Fig.10 It is a structural schematic diagram of the front side welding lower mold and the rear side welding lower mold of the present invention.

[0043] Fig.11 It is a structural schematic diagram of the welding upper mold of the present invention.

[0044] Fig.12 It is a structural schematic diagram of the welding support assembly of the present invention.

[0045] Fig.13 It is a cross-sectional schematic diagram of the welding support assembly of the present invention.

[0046] Fig.14 It is a schematic structural diagram of the clamping and transferring unit of the present invention.

[0047] Fig.15 It is a structural schematic diagram of the zipper assembly machine of the present invention.

[0048] exist Figures 1 to 15 Included are:

[0049] 1——Clamping and transfer unit 111——Left side drive linear module

[0050] 112——Right drive linear module 121——Left electric cylinder

[0051] 122——right electric cylinder 131——left air clamp

[0052] 132——Right air clamp 2——Zipper threading unit

[0053] 3 - Install the stop unit 31 - Fix the mounting bracket

[0054] 321——Lifting frame 322——Moveable frame driving cylinder

[0055] 323——Lifting guide column 324——Moveable frame guide hole

[0056] 33——Ultrasonic transducer 34——Welding upper mold

[0057] 341——Upper mold forming part 3411——Upper mold front side forming groove

[0058] 3412——Forming groove on the rear side of the upper die 351——Welding lower die on the front side

[0059] 3511——Forming groove on the front side of the lower die 352——Welding lower die on the rear side

[0060] 3521——Molding groove on the rear side of the lower die 361——Drive mechanism of the lower die on the front side

[0061] 362——Rear side lower die driving mechanism 363——Lower die driving mounting frame

[0062] 364——Lower die drive lifting cylinder 365——Lower die drive lifting bracket

[0063] 37 - Monofilament supply assembly 371 - Monofilament supply mounting bracket

[0064] 372——Single wire cutting and pushing mechanism 3721——Moveable slider

[0065] 37211——Single filament silo 37212——Slider feed port

[0066] 3722——Cut off the drive cylinder 3723——Cut off the drive block

[0067] 3724——Bending forming block 37241——Bending forming groove

[0068] 3725——Active push rod 3726——Push drive cylinder

[0069] 3727——Push drive block 373——Single wire fixed length transfer mechanism

[0070] 3731——Upper fixed wire guide block 37311——Upper wire guide hole

[0071] 37312——Upper end gap 3732——Lower end fixed guide wire block

[0072] 37321——lower end wire guide hole 37322——lower end gap

[0073] 3733——Wire guide block drive cylinder 3734——Wire guide block lifting seat

[0074] 37351——Active swing arm 37352——Active pressure wheel

[0075] 37353——Extension spring 37361——Single wire movable pressure rod

[0076] 37362 - Compression spring 374 - Monofilament feeder

[0077] 38——Welding support assembly 381——Welding support mounting frame

[0078] 382——Support block guide seat 3821——Support block wire groove

[0079] 3831——Front side movable support block 3832——Front side support drive cylinder

[0080] 3833——Front support drive rod 3841——Rear movable support block

[0081] 3842——Rear side support drive cylinder 3843——Rear side support drive rod

[0082] 4 - Switching drive assembly 41 - Switching drive movable frame

[0083] 42——Switch drive cylinder 43——Switch drive guide rail

[0084] 44——Switch drive slider 5——Zipper conveyor device

[0085] 6——Continuous zipper tape positioning device 7——Continuous zipper tape cutting device. DETAILED DESCRIPTION

[0086] The present invention is described below in conjunction with specific implementation methods.

[0087] like Figure 1 As shown, a zipper threading and stopping device includes a clamping and transferring unit 1, a zipper threading unit 2, and a stopping unit 3. The zipper threading unit 2 and the stopping unit 3 are respectively located on the walking path of the clamping and transferring unit 1, and the zipper threading unit 2 and the stopping unit 3 are arranged in sequence along the walking path of the clamping and transferring unit 1.

[0088] Among them, Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Fig. 9 , Fig.11 As shown, the stopping unit 3 includes a fixed mounting frame 31, and a lifting movable frame 321 and a movable frame driving cylinder 322 are installed on the upper end of the fixed mounting frame 31, and the outer extension end of the piston rod of the movable frame driving cylinder 322 is connected to the lifting movable frame 321; the lifting movable frame 321 is equipped with an ultrasonic transducer 33 which is arranged vertically and electrically connected to the ultrasonic generator, and the driving end of the ultrasonic transducer 33 is equipped with a welding upper mold 34; the lower end of the welding upper mold 34 is provided with two upper mold forming parts 341 which are opposite to each other and arranged at intervals on the left and right, and the lower surface of each upper mold forming part 341 is respectively provided with an upper mold front side forming groove 3411 and an upper mold rear side forming groove 3412 which are arranged at intervals in front and back. It should be explained that in order to ensure that the lifting movable frame 321 moves up and down smoothly and reliably under the driving action of the movable frame driving cylinder 322, the present invention adopts the following guide structure design, specifically: the movable frame driving cylinder 322 is screwed on the upper end of the fixed mounting frame 31, and the fixed mounting frame 31 is provided with a vertically arranged lifting guide column 323, and the lifting movable frame 321 is provided with a movable frame guide hole 324 that completely penetrates from top to bottom corresponding to the lifting guide column 323, and the lifting guide column 323 is inserted into the movable frame guide hole 324 of the lifting movable frame 321.

[0089] Further, such as Figures 7 to 10As shown, the lower end side of the welding upper mold 34 is equipped with a front welding lower mold 351 and a rear welding lower mold 352 located at the rear end side of the front welding lower mold 351, and the lifting movable frame 321 is equipped with a front lower mold driving mechanism 361 for driving the front welding lower mold 351 to move up and down, and a rear lower mold driving mechanism 362 for driving the rear welding lower mold 352 to move up and down; the front welding lower mold 351 is respectively provided with a lower mold front side molding groove 3511 corresponding to each upper mold front side molding groove 3411, and the rear welding lower mold 352 is respectively provided with a lower mold rear side molding groove 3521 corresponding to each upper mold rear side molding groove 3412.

[0090] Furthermore, Figures 1 to 4 As shown, the zipper threading and stopping device also includes two monofilament supply assemblies 37, one monofilament supply assembly 37 is located on the left end side of the welding upper mold 34, and the other monofilament supply assembly 37 is located on the right end side of the welding upper mold 34; the fixed mounting frame 31 is equipped with a switching drive assembly 4, and the two monofilament supply assemblies 37 are respectively installed on the driving ends of the switching drive assembly 4.

[0091] It should be pointed out that the upper mold front side molding groove 3411 and the lower mold front side molding groove 3511 of the front side welding lower mold 351 form the upper stop molding position of the forward wear zipper, and the upper mold rear side molding groove 3412 and the lower mold rear side molding groove 3521 of the rear side welding lower mold 352 form the upper stop molding position of the reverse wear zipper, that is, the upper mold front side molding groove 3411 of the upper mold molding part 341 on the left side and the lower mold front side molding groove 3511 on the left side form the upper stop molding position on the left side of the forward wear zipper, and the upper mold rear side molding groove 3412 on the right side and the lower mold rear side molding groove 3521 of the rear side welding lower mold 352 form the upper stop molding position on the left side of the reverse wear zipper. The upper mold front side molding groove 3411 of the mold forming part 341 and the lower mold front side molding groove 3511 on the right side constitute the upper stop molding position on the right side of the forward-threading zipper, the upper mold rear side molding groove 3412 of the upper mold forming part 341 on the left side and the lower mold rear side molding groove 3521 on the left side constitute the upper stop molding position on the left side of the reverse-threading zipper, and the upper mold rear side molding groove 3412 of the upper mold forming part 341 on the right side and the lower mold rear side molding groove 3521 on the right side constitute the upper stop molding position on the right side of the reverse-threading zipper. Of course, in addition to the above-mentioned setting, the present invention can also adopt the following setting, specifically: the upper mold front side molding groove 3411 and the lower mold front side molding groove 3511 of the front side welded lower mold 351 form the reverse wear zipper upper stop molding position, the upper mold rear side molding groove 3412 and the lower mold rear side molding groove 3521 of the rear side welded lower mold 352 form the forward wear zipper upper stop molding position, that is, the upper mold front side molding groove 3411 of the upper mold molding part 341 on the left side and the lower mold front side molding groove 3511 on the left side form the reverse wear zipper The upper stop molding position on the left side, the upper mold front side molding groove 3411 of the upper mold molding part 341 on the right and the lower mold front side molding groove 3511 on the right constitute the upper stop molding position on the right side of the reverse zipper, the upper mold rear side molding groove 3412 of the upper mold molding part 341 on the left and the lower mold rear side molding groove 3521 on the left constitute the upper stop molding position on the left side of the forward zipper, and the upper mold rear side molding groove 3412 of the upper mold molding part 341 on the right and the lower mold rear side molding groove 3521 on the right constitute the upper stop molding position on the right side of the forward zipper.

[0092] During the working process of the present invention, the clamping and transferring assembly clamps the cut zipper and moves it so that the zipper passes through the zipper threading unit 2 and the upper stop unit 3 in sequence; when the zipper moves to the position of the zipper threading unit 2, the zipper threading unit 2 performs the threading process and installs the slider on the zipper; when the zipper moves to the position of the upper stop unit 3, the upper stop unit 3 performs the upper stop process and forms the upper stops on the left and right chain straps of the zipper respectively.

[0093] During the process of the upper stop forming processing of the upper stop unit 3 of the present invention, when the zipper entering the position of the upper stop unit 3 is a straight-through zipper, the monofilament supply assembly 37 on the left side supplies the monofilament to the left upper stop forming position of the straight-through zipper, and the monofilament supply assembly 37 on the right side supplies the monofilament to the right upper stop forming position of the straight-through zipper; when the ultrasonic transducer 33 is started and the upper stop ultrasonic welding forming is performed, the monofilament in the left upper stop forming position of the straight-through zipper is welded to the left chain belt of the straight-through zipper, and the monofilament in the right upper stop forming position of the straight-through zipper is welded to the right chain belt of the straight-through zipper. When the zipper that enters the position of the upper stop unit 3 is a reverse zipper, the switching drive mechanism is activated and drives the two monofilament supply assemblies 37 to switch and move, so that each monofilament supply assembly 37 is respectively aligned with the corresponding reverse zipper upper stop forming position, and the left monofilament supply assembly 37 supplies the monofilament to the left upper stop forming position of the reverse zipper, and the right monofilament supply assembly 37 supplies the monofilament to the right upper stop forming position of the reverse zipper; when the ultrasonic transducer 33 is started and the upper stop ultrasonic welding forming is performed, the monofilament in the left upper stop forming position of the reverse zipper is welded to the left chain belt of the reverse zipper, and the monofilament in the right upper stop forming position of the reverse zipper is welded to the right chain belt of the reverse zipper.

[0094] During the upper stop welding process, the movable frame driving cylinder 322 first drives the lifting movable frame 321 to move up to the upper limit position, so that the monofilament of the monofilament supply assembly 37 can be accurately supplied to the upper stop molding position; when the monofilament enters the upper stop molding position, the movable frame driving cylinder 322 drives the lifting movable frame 321 to move down to the lower limit position, so that the zipper can accurately penetrate into the upper stop molding position. In addition, when the monofilament enters the upper stop molding position and undergoes ultrasonic welding, the front side welding lower mold 351 or the rear side welding lower mold 352 at the upper stop molding station is closed with the welding upper mold 34, and after the upper stop ultrasonic welding is completed, the front side lower mold driving mechanism 361 or the rear side lower mold driving mechanism 362 drives the corresponding front side welding lower mold 351 and the rear side welding lower mold 352 to move downward to ensure that the zipper after the upper stop is formed can be smoothly removed from the upper stop unit 3 through the clamping transfer unit 1.

[0095] Based on the above, it can be seen that through the above-mentioned structural design, the zipper threading and stop device of the present invention can be suitable for the forward and reverse zipper threading and stop processing operations, that is, the zipper threading and stop device of the present invention has the advantages of novel structural design, high degree of automation, strong adaptability and high degree of flexible manufacturing.

[0096] As a preferred embodiment, Figures 7 to 10As shown, the front lower die driving mechanism 361 and the rear lower die driving mechanism 362 respectively include a lower die driving mounting bracket 363 screwed on the lifting movable frame 321, each lower die driving mounting bracket 363 is screwed with a lower die driving lifting cylinder 364 for up and down movement, and the outer extension end of the piston rod of each lower die driving lifting cylinder 364 is respectively equipped with a lower die driving lifting bracket 365; the front side welding lower die 351 is installed at the lower end of the lower die driving lifting bracket 365 of the front side lower die driving mechanism 361, and the rear side welding lower die 352 is installed at the lower end of the lower die driving lifting bracket 365 of the rear side lower die driving mechanism 362.

[0097] In the process of the front lower mold driving mechanism 361 or the rear lower mold driving mechanism 362 driving the corresponding front welding lower mold 351 and the rear welding lower mold 352 to move up and down, the lower mold driving lifting cylinder 364 is actuated and drives the corresponding front welding lower mold 351 and the rear welding lower mold 352 to move up and down through the lower mold driving lifting bracket 365.

[0098] As a preferred embodiment, Figures 1 to 4 As shown, the switching drive assembly 4 includes a switching drive movable frame 41, a switching drive cylinder 42 screwed on the fixed mounting frame 31 and moving horizontally forward and backward, the outer extension end of the piston rod of the switching drive cylinder 42 is connected to the switching drive movable frame 41, and each monofilament supply assembly 37 is respectively installed on the switching drive movable frame 41. Among them, in order to ensure that the switching drive movable frame 41 moves horizontally forward and backward smoothly and reliably, the present invention adopts the following guide structure design, specifically: the fixed mounting frame 31 is screwed with a switching drive guide rail 43 extending horizontally along the front and rear direction, the switching drive movable frame 41 is screwed with a switching drive slider 44 corresponding to the switching drive guide rail 43, and the switching drive guide rail 43 cooperates with the switching drive slider 44 to form a guide substructure.

[0099] When the upper stop unit 3 of the present invention switches the forward zipper upper stop forming station and the reverse zipper upper stop forming station, the switching drive cylinder 42 pushes the switching drive movable frame 41 to move horizontally forward and backward, and the switching drive movable frame 41 that moves horizontally forward and backward drives the two monofilament supply assemblies 37 to move horizontally forward and backward synchronously, so as to realize the switching of the monofilament supply between the forward zipper upper stop forming station and the reverse zipper upper stop forming station.

[0100] Of course, in addition to using the switching driving cylinder 42 to drive the switching driving movable frame 41 to move horizontally forward and backward, the present invention can also use an electric push rod to drive the switching driving movable frame 41.

[0101] As a preferred embodiment, Figures 1 to 5As shown, the monofilament supply assembly 37 includes a monofilament supply mounting frame 371 mounted on the switching drive movable frame 41, the monofilament supply mounting frame 371 is equipped with a monofilament cutting and pushing mechanism 372, and a monofilament fixed-length transfer mechanism 373 for supplying the monofilament to the monofilament cutting and pushing mechanism 372 at a fixed length; the zipper threading and upper stop device also includes a monofilament feeder 374 for continuously supplying the monofilament to the monofilament fixed-length transfer mechanism 373. During operation, the monofilament feeder 374 continuously delivers the monofilament, and the monofilament delivered by the monofilament feeder 374 is fixedly transferred to the monofilament cutting and pushing mechanism 372 by the monofilament fixed-length transfer mechanism 373, and the monofilament cutting and pushing mechanism 372 pushes the cut monofilament to the upper stop forming position.

[0102] As a preferred embodiment, Figure 5 As shown, the single-wire fixed-length transfer mechanism 373 includes an upper fixed wire guide block 3731 and a lower movable wire guide block located at the lower end side of the upper fixed wire guide block 3731, which are respectively arranged vertically. The upper fixed wire guide block 3731 is screwed on the single-wire supply mounting frame 371; the single-wire supply mounting frame 371 is provided with a wire guide block driving cylinder 3733 which moves up and down corresponding to the lower movable wire guide block, and a wire guide block lifting seat 3734 is installed at the outer extension end of the piston rod of the wire guide block driving cylinder 3733, and the lower movable wire guide block is installed at the lower end of the wire guide block lifting seat 3734.

[0103] Among them, the upper fixed wire guide block 3731 is provided with an upper wire guide hole 37311 which is completely penetrated from top to bottom and for the monofilament to pass from top to bottom, and the upper fixed wire guide block 3731 is provided with an upper air avoidance gap 37312 which is opened laterally and connected with the upper wire guide hole 37311; the monofilament supply mounting frame 371 is provided with a movable rocker arm 37351 through a pivot hinge on the side of the upper fixed wire guide block 3731, and one end of the movable rocker arm 37351 is provided with a movable pressure wheel 37352 which extends into the upper air avoidance gap 37312, and the other end of the movable rocker arm 37351 is provided with a tension spring 37353 which prompts the movable pressure wheel 37352 to press the monofilament passing through the upper wire guide hole 37311.

[0104] Furthermore, the lower movable wire guide block is provided with a lower end wire guide hole 37321 which completely penetrates from top to bottom and allows the monofilament to pass from top to bottom, and the lower end movable wire guide block is provided with a lower end avoidance gap 37322 which is open laterally and communicated with the lower end wire guide hole 37321; the wire guide block lifting seat 3734 is hinged with a monofilament movable pressure rod 37361 through a pivot hinge on the side of the lower movable wire guide block, and the free end of the monofilament movable pressure rod 37361 is wedge-shaped and extends into the lower end avoidance gap 37322 of the lower movable wire guide block; the wire guide block lifting seat 3734 is provided with a compression spring 37362 which pushes the monofilament movable pressure rod 37361 upward on the lower end side of the monofilament movable pressure rod 37361, and the elastic force of the compression spring 37362 prompts the free end of the monofilament movable pressure rod 37361 to press the monofilament passing through the lower end wire guide hole 37321.

[0105] In the process of realizing the fixed-length transfer of the monofilament by the fixed-length transfer mechanism 373 of the present invention, the monofilament fed by the monofilament feeder 374 is successively passed through the upper guide hole 37311 of the upper fixed guide block 3731 and the lower guide hole 37321 of the lower movable guide block; when the monofilament needs to be transferred downward at a fixed length, the guide block driving cylinder 3733 is actuated and the guide block driving cylinder 3733 pushes the lower movable guide block to move downward, and in this process, the monofilament movable pressure rod 37361 moves downward synchronously with the lower end movable wire guide block. Due to the elastic force of the compression spring 37362, the free end of the single-wire movable pressure rod 37361 presses the single wire in the lower end wire guide hole 37321. In the process that the single-wire movable pressure rod 37361 moves downward synchronously with the wire guide block lifting seat 3734 and the lower end movable wire guide block, the single wire is pulled and moved downward synchronously. The downward movement distance of the wire guide block lifting seat 3734 is the fixed-length movement length of the single wire.

[0106] It should be pointed out that due to the elastic force of the tension spring 37353, the movable pressure wheel 37352 keeps pressing the monofilament in the upper wire guide hole 37311. Through the pressing and holding action of the movable pressure wheel 37352 on the monofilament, the monofilament between the movable pressure wheel 37352 and the monofilament movable pressure rod 37361 can be kept in a tensioned state, so as to ensure the accuracy of fixed-length transfer.

[0107] As a preferred embodiment, Figures 4 to 6 As shown, the monofilament cutting and pushing mechanism 372 includes a movable slider 3721, the movable slider 3721 is provided with a monofilament bin 37211 opening toward the welding upper mold 34, and the end of the movable slider 3721 is provided with a slider feed port 37212 which is connected to the monofilament bin 37211 and for the monofilament to enter the monofilament bin 37211.

[0108] Among them, the monofilament supply mounting frame 371 is screwed with a cutting drive cylinder 3722 that moves along the opening direction of the monofilament bin 37211, and the outer extension end of the piston rod of the cutting drive cylinder 3722 is equipped with a cutting drive block 3723, and the movable slider 3721 is installed on the cutting drive block 3723; the monofilament supply mounting frame 371 is equipped with a bending forming block 3724 located at the opening position of the monofilament bin 37211 of the movable slider 3721, and the bending forming block 3724 is provided with a bending forming groove 37241 that completely penetrates along the opening direction of the monofilament bin 37211; when the cutting drive cylinder 3722 pushes the cutting drive block 3723 and the movable slider 3721 moves toward the side of the welding upper mold 34, the movable slider 3721 and the bending forming block 3724 move relative to each other, and the monofilament in the monofilament bin 37211 that enters the movable slider 3721 is cut off at the slider feed port 37212.

[0109] Furthermore, the monofilament bin 37211 of the movable slider 3721 is embedded with a movable push rod 3725, the cutting drive block 3723 is screwed with a push drive cylinder 3726, the extended end of the piston rod of the push drive cylinder 3726 is provided with a push drive block 3727, and the end of the movable push rod 3725 is connected to the push drive block 3727; when the push drive cylinder 3726 pushes the push drive block 3727 and the movable push rod 3725 moves toward the bending forming block 3724, the movable push rod 3725 pushes the cut monofilament into the bending forming groove 37241 of the bending forming block 3724. During this process, the cut monofilament passes through the bending forming groove 37241 of the bending forming block 3724 and is extruded into a "C" shape.

[0110] During operation, the monofilament fed at a fixed length by the monofilament fixed-length conveying mechanism 373 enters the monofilament bin 37211 of the movable slider 3721 via the slider feed port 37212 of the movable slider 3721; after the monofilament fixed-length conveying mechanism 373 completes the monofilament fixed-length conveying, the cutting drive cylinder 3722 is actuated, and the cutting drive cylinder 3722 pushes the cutting drive block 3723 and the movable slider 3721 toward the side of the welding upper mold 34, the movable slider 3721 and the bending forming block 3724 move relative to each other, and the monofilament entering the monofilament bin 37211 of the movable slider 3721 is cut at the slider feed port 37212. The cut monofilament falls into the monofilament material bin 37211 of the movable slider 3721, and then the push drive cylinder 3726 is actuated, and the push drive cylinder 3726 pushes the push drive block 3727 and the movable push rod 3725 to move toward the bending forming block 3724, and the movable push rod 3725 pushes the cut monofilament into the bending forming groove 37241 of the bending forming block 3724. During this process, the cut monofilament passes through the bending forming groove 37241 of the bending forming block 3724 and is extruded into a "C" shape, and the cut and extruded monofilament is pushed to the upper stop forming position.

[0111] As a preferred embodiment, Figure 1 , Fig.12 as well as Fig.13 As shown, the zipper threading and stopping device also includes a welding support assembly 38 located at the lower end side of the front welding lower mold 351 and the rear welding lower mold 352.

[0112] Specifically, the welding support assembly 38 includes a welding support mounting frame 381, and a support block guide seat 382 is installed at the upper end of the welding support mounting frame 381, and the support block guide seat 382 is provided with a support block guide groove opening upward; the support block guide groove of the support block guide seat 382 is embedded with a front movable support block 3831 and a rear movable support block 3841 arranged vertically, respectively, the front movable support block 3831 is located directly below the front welding lower mold 351, and the rear movable support block 3841 is located directly below the rear welding lower mold 352; the welding support mounting frame 381 corresponds to the front movable support block 38 31 is screwed with a front side supporting driving cylinder 3832 which can move up and down, and a front side supporting driving rod 3833 is installed at the extended end of the piston rod of the front side supporting driving cylinder 3832, and the upper end of the front side supporting driving rod 3833 is connected to the lower end of the front side movable supporting block 3831; the welding supporting mounting frame 381 is screwed with a rear side supporting driving cylinder 3842 which can move up and down, and a rear side supporting driving rod 3843 is installed at the extended end of the piston rod of the rear side supporting driving cylinder 3842, and the upper end of the rear side supporting driving rod 3843 is connected to the lower end of the rear side movable supporting block 3841.

[0113] During the working process of the present invention, when the front side welding lower mold 351 is in the upper stop forming station, the front side support driving cylinder 3832 is actuated and the front side support driving cylinder 3832 drives the front side movable supporting block 3831 to move upward, so that the front side movable supporting block 3831 is against the lower surface of the front side welding lower mold 351. During the ultrasonic welding process, the front side movable supporting block 3831 can ensure that the front side welding lower mold 351 will not shift, so as to ensure the stability and reliability of the ultrasonic welding process.

[0114] Similarly, when the rear side welding lower mold 352 is in the upper stop forming station, the rear side support driving cylinder 3842 is actuated and the rear side support driving cylinder 3842 drives the rear side movable supporting block 3841 to move upward, so that the rear side movable supporting block 3841 is against the lower surface of the rear side welding lower mold 352. During the ultrasonic welding process, the rear side movable supporting block 3841 can ensure that the rear side welding lower mold 352 will not shift, so as to ensure the stability and reliability of the ultrasonic welding process.

[0115] As a preferred embodiment, Fig.14 As shown, the clamping and transferring unit 1 includes a left-side driven linear module 111 with synchronous action and a right-side driven linear module 112 located at the right end side of the left-side driven linear module 111. The left-side driven linear module 111 and the right-side driven linear module 112 are opposite to each other left and right and arranged at intervals. The driving end of the left-side driven linear module 111 is equipped with a left-side electric cylinder 121 with left-right horizontal action, and the driving end of the right-side driven linear module 112 is equipped with a right-side electric cylinder 122 with left-right horizontal action; the driving end of the left-side electric cylinder 121 is equipped with a left-side air clamp 131, and the driving end of the right-side electric cylinder 122 is equipped with a right-side air clamp 132.

[0116] During the process of the clamping and transferring unit 1 of the present invention clamping and moving the zipper, the left-side driving linear module 111 and the right-side driving linear module 112 act synchronously. The left-side driving linear module 111 drives the left-side electric cylinder 121 to move linearly, and the right-side driving linear module 112 drives the right-side electric cylinder 122 to move linearly. The left-side electric cylinder 121 drives the left-side air clamp 131 to move left and right, and the right-side electric cylinder 122 drives the right-side air clamp 132 to move left and right.

[0117] In the process of realizing the linear transfer of the zipper, the left air clamp 131 clamps the left chain belt of the zipper, and the right air clamp 132 clamps the right chain belt of the zipper; when the clamping and transferring unit 1 of the present invention transfers the zipper to the position of the zipper threading unit 2 and performs the zipper threading operation, the left electric cylinder 121 drives the left air clamp 131 to move toward the left, and the right electric cylinder 122 drives the right air clamp 132 to move toward the right, so that the left chain teeth of the zipper are separated from the right chain teeth, so as to ensure that the left chain teeth and the right chain teeth of the zipper can be smoothly inserted into the slider.

[0118] A zipper assembly machine, such as Fig.15 As shown, it includes a zipper conveying device 5, a continuous zipper tape positioning device 6, a continuous zipper tape cutting device 7 and a zipper threading and stopping device; wherein the zipper threading and stopping device adopts the above-mentioned zipper threading and stopping device.

[0119] For the zipper assembly machine of the present invention, the zipper conveying assembly sends the continuous zipper to the continuous zipper tape positioning device 6. After the continuous zipper tape positioning device 6 positions the continuous zipper, the continuous zipper tape cutting device 7 cuts the continuous zipper. The cut zipper is threaded and stopped by the zipper threading and stop-attaching device. The zipper conveying device 5, the continuous zipper tape positioning device 6, and the continuous zipper tape cutting device 7 are all conventional designs in the art and will not be described in detail here.

[0120] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A zipper threading and stop-attaching device, comprising a clamping and transferring unit (1), a zipper threading unit (2), and a stop-attaching unit (3), wherein the zipper threading unit (2) and the stop-attaching unit (3) are respectively located on a travel path of the clamping and transferring unit (1), and the zipper threading unit (2) and the stop-attaching unit (3) are sequentially arranged at intervals along the travel path of the clamping and transferring unit (1); Features: The stop unit (3) comprises a fixed mounting frame (31), the upper end of the fixed mounting frame (31) is provided with a lifting movable frame (321) and a movable frame driving cylinder (322), the outer extension end of the piston rod of the movable frame driving cylinder (322) is connected to the lifting movable frame (321), the lifting movable frame (321) is provided with an ultrasonic transducer (33) arranged vertically and electrically connected to an ultrasonic generator, the driving end of the ultrasonic transducer (33) is provided with a welding upper mold (34), the lower end of the welding upper mold (34) is provided with two upper mold forming parts (341) arranged opposite to each other and spaced apart, and the lower surface of each upper mold forming part (341) is respectively provided with an upper mold front side forming groove (3411) and an upper mold rear side forming groove (3412) arranged spaced apart from each other. The lower end side of the welding upper mold (34) is provided with a front welding lower mold (351) and a rear welding lower mold (352) located at the rear end side of the front welding lower mold (351); the lifting movable frame (321) is provided with a front lower mold driving mechanism (361) for driving the front welding lower mold (351) to move up and down, and a rear lower mold driving mechanism (362) for driving the rear welding lower mold (352) to move up and down; the front welding lower mold (351) is provided with lower mold front molding grooves (3511) corresponding to the front molding grooves (3411) of each upper mold, and the rear welding lower mold (352) is provided with lower mold rear molding grooves (3521) corresponding to the rear molding grooves (3412) of each upper mold; The zipper threading and stop device also includes two monofilament supply assemblies (37), one of which is located at the left end of the welding upper mold (34), and the other monofilament supply assembly (37) is located at the right end of the welding upper mold (34); the fixed mounting frame (31) is equipped with a switching drive assembly (4), and the two monofilament supply assemblies (37) are respectively installed at the driving ends of the switching drive assembly (4); The fixed installation frame (31) is provided with a vertically arranged lifting guide column (323), and the lifting movable frame (321) is provided with a movable frame guide hole (324) which completely penetrates from top to bottom corresponding to the lifting guide column (323), and the lifting guide column (323) is inserted into the movable frame guide hole (324) of the lifting movable frame (321).

2. A zipper threading and stopping device according to claim 1, characterized in that: The front lower die driving mechanism (361) and the rear lower die driving mechanism (362) respectively include a lower die driving mounting bracket (363) screwed on the lifting movable frame (321), each lower die driving mounting bracket (363) is screwed with a lower die driving lifting cylinder (364) for up and down movement, and a lower die driving lifting bracket (365) is respectively installed at the outer extension end of the piston rod of each lower die driving lifting cylinder (364); The front side welding lower mold (351) is installed on the lower end of the lower mold driving lifting bracket (365) of the front side lower mold driving mechanism (361), and the rear side welding lower mold (352) is installed on the lower end of the lower mold driving lifting bracket (365) of the rear side lower mold driving mechanism (362).

3. A zipper threading and stopping device according to claim 1, characterized in that: The switching drive assembly (4) comprises a switching drive movable frame (41), a switching drive cylinder (42) screwed on the fixed mounting frame (31) and capable of horizontally moving forward and backward, the outer extension end of the piston rod of the switching drive cylinder (42) being connected to the switching drive movable frame (41), and each of the monofilament supply assemblies (37) being mounted on the switching drive movable frame (41).

4. A zipper threading and stopping device according to claim 3, characterized in that: The monofilament supply assembly (37) includes a monofilament supply mounting frame (371) mounted on the switching drive movable frame (41), and the monofilament supply mounting frame (371) is equipped with a monofilament cutting and pushing mechanism (372) and a monofilament fixed-length transfer mechanism (373) for supplying monofilaments of a fixed length to the monofilament cutting and pushing mechanism (372); the zipper threading and stop device also includes a monofilament feeder (374) for continuously supplying monofilaments to the monofilament fixed-length transfer mechanism (373).

5. A zipper threading and stopping device according to claim 4, characterized in that: The monofilament cutting and pushing mechanism (372) comprises a movable slider (3721), the movable slider (3721) is provided with a monofilament bin (37211) opening toward the side of the welding upper mold (34), and the end of the movable slider (3721) is provided with a slider feed port (37212) which is in communication with the monofilament bin (37211) and allows the monofilament to enter the monofilament bin (37211); The monofilament supply mounting frame (371) is screwed with a cutting drive cylinder (3722) that moves along the opening direction of the monofilament bin (37211), a cutting drive block (3723) is installed at the outer extension end of the piston rod of the cutting drive cylinder (3722), and the movable slider (3721) is installed on the cutting drive block (3723); The monofilament supply mounting frame (371) is provided with a bending forming block (3724) located at the opening position of the monofilament bin (37211) of the movable slider (3721), and the bending forming block (3724) is provided with a bending forming groove (37241) that completely penetrates along the opening direction of the monofilament bin (37211); when the cutting driving cylinder (3722) pushes the cutting driving block (3723) and the movable slider (3721) moves toward the welding upper mold (34), the movable slider (3721) and the bending forming block (3724) move relative to each other, and the monofilaments in the monofilament bin (37211) of the movable slider (3721) are cut at the slider feed port (37212); A movable push rod (3725) is embedded in the monofilament bin (37211) of the movable slider (3721), a push drive cylinder (3726) is screwed on the cutting drive block (3723), a push drive block (3727) is installed on the outer extension end of the piston rod of the push drive cylinder (3726), and the end of the movable push rod (3725) is connected to the push drive block (3727); when the push drive cylinder (3726) pushes the push drive block (3727) and the movable push rod (3725) moves toward the bending forming block (3724), the movable push rod (3725) pushes the cut monofilament into the bending forming groove (37241) of the bending forming block (3724), and in this process, the cut monofilament passes through the bending forming groove (37241) of the bending forming block (3724) and is extruded into a "C" shape.

6. A zipper threading and stopping device according to claim 4, characterized in that: The monofilament fixed-length transfer mechanism (373) comprises an upper fixed wire guide block (3731) and a lower movable wire guide block located at the lower end side of the upper fixed wire guide block (3731), respectively arranged vertically, wherein the upper fixed wire guide block (3731) is screwed onto the monofilament supply mounting frame (371); the monofilament supply mounting frame (371) is provided with a wire guide block driving cylinder (3733) that moves up and down corresponding to the lower movable wire guide block, the outer extension end of the piston rod of the wire guide block driving cylinder (3733) is provided with a wire guide block lifting seat (3734), and the lower movable wire guide block is installed at the lower end of the wire guide block lifting seat (3734); The upper fixed wire guide block (3731) is provided with an upper wire guide hole (37311) which completely penetrates from top to bottom and allows the monofilament to pass from top to bottom, and the upper fixed wire guide block (3731) is provided with an upper air-avoiding gap (37312) which is open laterally and communicates with the upper wire guide hole (37311); the monofilament supply mounting frame (371) is provided with a movable swing rod (37351) by a pivot hinge on the side of the upper fixed wire guide block (3731), one end of the movable swing rod (37351) is provided with a movable pressure wheel (37352) which extends into the upper air-avoiding gap (37312), and the other end of the movable swing rod (37351) is provided with a tension spring (37353) which prompts the movable pressure wheel (37352) to press the monofilament passing through the upper wire guide hole (37311); The lower movable wire guide block is provided with a lower wire guide hole (37321) which is completely penetrated from top to bottom and is used for the monofilament to pass from top to bottom. The lower movable wire guide block is provided with a lower air-avoiding gap (37322) which is opened laterally and is connected with the lower wire guide hole (37321). The wire guide block lifting seat (3734) is hingedly provided with a monofilament movable pressure rod (37361) on the side of the lower movable wire guide block through a pivot, and the free end of the monofilament movable pressure rod (37361) is wedge-shaped. The wire guide block lifting seat (3734) is provided with a compression spring (37362) at the lower end side of the single-wire movable pressure rod (37361) for pushing the single-wire movable pressure rod (37361) upward, and the elastic force of the compression spring (37362) causes the free end of the single-wire movable pressure rod (37361) to press the single-wire passing through the lower end wire guide hole (37321).

7. A zipper threading and stopping device according to claim 1, characterized in that: The zipper threading and stopping device also includes a welding support assembly (38) located at the lower end side of the front welding lower mold (351) and the rear welding lower mold (352).

8. A zipper threading and stopping device according to claim 7, characterized in that: The welding support assembly (38) comprises a welding support mounting frame (381), the upper end of the welding support mounting frame (381) is provided with a support block guide seat (382), and the support block guide seat (382) is provided with a support block guide groove opening upward; A front movable supporting block (3831) and a rear movable supporting block (3841) arranged vertically are embedded in the supporting block guide groove of the supporting block guide seat (382); the front movable supporting block (3831) is located directly below the front welding lower mold (351), and the rear movable supporting block (3841) is located directly below the rear welding lower mold (352); A front side support driving cylinder (3832) that moves up and down is screwed onto the welding support mounting frame (381) corresponding to the front side movable support block (3831); a front side support driving rod (3833) is installed at the outer extension end of the piston rod of the front side support driving cylinder (3832); and the upper end of the front side support driving rod (3833) is connected to the lower end of the front side movable support block (3831); The welding support mounting frame (381) is screwed with a rear support driving cylinder (3842) that moves up and down corresponding to the rear movable support block (3841), and a rear support driving rod (3843) is installed on the extended end of the piston rod of the rear support driving cylinder (3842), and the upper end of the rear support driving rod (3843) is connected to the lower end of the rear movable support block (3841).

9. A zipper threading and stopping device according to claim 1, characterized in that: The clamping and transferring unit (1) comprises a left-side driving linear module (111) that moves synchronously, and a right-side driving linear module (112) located at the right end side of the left-side driving linear module (111); the left-side driving linear module (111) and the right-side driving linear module (112) are opposite to each other and arranged at intervals; the driving end of the left-side driving linear module (111) is equipped with a left-side electric cylinder (121) that moves horizontally left and right, and the driving end of the right-side driving linear module (112) is equipped with a right-side electric cylinder (122) that moves horizontally left and right; the driving end of the left-side electric cylinder (121) is equipped with a left-side air clamp (131), and the driving end of the right-side electric cylinder (122) is equipped with a right-side air clamp (132).

10. A zipper assembly machine, comprising a zipper conveying device (5), a continuous zipper tape positioning device (6), a continuous zipper tape cutting device (7), and a zipper threading and stopping device; Features: The zipper threading and stopping device adopts the zipper threading and stopping device according to any one of claims 1 to 9.

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