A nylon zipper automatic threading and melting stop device

Abstract

The application discloses a nylon zipper automatic threading, melting and stopping device, which comprises a feeder, an automatic threading assembly, a threading traction assembly, an automatic melting and stopping assembly and a melting and stopping traction assembly arranged in sequence from front to back along the conveying direction of the zipper tape; the automatic threading assembly comprises a single wire supply mechanism and a single wire cutting and pushing mechanism located at the rear end side of the single wire supply mechanism; a chain tooth extruding mechanism for extruding the left and right chain teeth of the zipper tape inward is arranged above the single wire cutting and pushing mechanism; a single wire pressing mechanism for pressing the nylon single wire between the left and right chain teeth; the automatic melting and stopping assembly comprises a tape positioning jig and an ultrasonic welding mechanism located above the tape positioning jig. Through the above structure design, the nylon zipper threading, melting and stopping operation can be automatically and efficiently realized, that is, the application has the advantages of novel structure design, high automation degree, high work efficiency, high stopping force and stability.

Description

Technical Field

[0001] The invention relates to the technical field of zipper processing equipment, in particular to an automatic threading and melting stop device for a nylon zipper. Background Art

[0002] As for the zipper, it includes two chain belts (i.e., the left chain belt and the right chain belt), and the inner edges of the left chain belt and the right chain belt are respectively provided with chain teeth. In the process of preparing a continuous zipper chain belt through a zipper forming machine, the chain teeth of the left chain belt are engaged with the chain teeth of the right chain belt, and the entire zipper chain belt is provided with fixed size openings arranged in sequence at intervals. The fixed size opening is the part of the zipper chain belt without chain teeth.

[0003] As an important type of zipper structure, closed-end zippers are widely used in people's daily lives. Closed-end zippers have a bottom stop at the tail end. For nylon zippers, during the bottom stop formation process, the existing technology generally uses simple welding equipment to weld the nylon chain elements of the left and right chain elements together to form the zipper's bottom stop. The above-mentioned method of directly welding the left and right chain elements to form the bottom stop has the following disadvantages: 1. The bottom stop is not strong enough to meet the high requirements of high-end zippers; 2. The bottom stop is not strong enough, with poor reliability, and the weld between the left and right chain elements is prone to loosening.

[0004] In order to ensure the stability of the welding bottom stop of the left and right chain teeth, a nylon monofilament can be inserted between the left and right chain teeth to connect the bottom stop forming positions of the left and right chain teeth together through the nylon monofilament. Summary of the Invention

[0005] The purpose of the present invention is to provide a nylon zipper automatic threading and bottom stop melting device, which can automatically and efficiently realize the nylon zipper threading and bottom stop melting operations, has a novel structural design, a high degree of automation, high work efficiency, and a strong and stable bottom stop.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0007] A nylon zipper automatic threading and melting stop device comprises a feeder, an automatic threading assembly, a threading traction assembly, an automatic melting stop assembly, and a melting stop traction assembly, which are arranged in sequence from front to back along the conveying direction of the zipper chain;

[0008] The automatic threading assembly includes a monofilament feeding mechanism, a monofilament cutting and pushing mechanism located at the rear end of the monofilament feeding mechanism, a chain tooth squeezing mechanism for squeezing the left and right chain teeth of the zipper tape inward, and a monofilament pressing mechanism for pressing the nylon monofilament between the left and right chain teeth.

[0009] The automatic bottom melting stop assembly includes a chain belt positioning fixture and an ultrasonic welding mechanism located above the chain belt positioning fixture.

[0010] The monofilament supply mechanism includes a monofilament supply mounting frame, the upper end of which is equipped with a monofilament supply driving cylinder that moves horizontally forward and backward, and the outer end of the piston rod of the monofilament supply driving cylinder is equipped with a monofilament supply movable seat, which is provided with a movable seat monofilament hole that completely penetrates the front and back and is used for the passage of nylon monofilament.

[0011] The monofilament supply movable seat is provided with a movable seat accommodating cavity which opens downward and is connected with the monofilament hole of the movable seat. A monofilament clamping block is embedded in the movable seat accommodating cavity. The lower end of the monofilament supply movable seat is provided with a clamping block driving cylinder which moves up and down on the lower end side of the monofilament clamping block. The extended end of the piston rod of the clamping block driving cylinder is connected with the lower end of the monofilament clamping block.

[0012] The monofilament cutting and pushing mechanism includes a cutting and pushing fixed seat, which is provided with a fixed seat accommodating cavity opening upward, and a fixed seat monofilament hole opening forward and communicating with the fixed seat accommodating cavity is provided on the front end side of the fixed seat accommodating cavity of the cutting and pushing fixed seat; a cutting lifting block is embedded in the fixed seat accommodating cavity, and a cutting lifting drive cylinder that moves up and down is installed at the lower end of the cutting and pushing fixed seat, and the outer extension end of the piston rod of the cutting lifting drive cylinder is connected to the lower end of the cutting lifting block;

[0013] The upper end of the cut-off lifting block is fastened with a lifting synchronization block, and the lifting synchronization block is provided with a synchronization block single wire hole that completely passes through the front and back of the lifting synchronization block; the rear end side of the lifting synchronization block is provided with a single wire pushing block that moves horizontally front and back relative to the lifting synchronization block, and the single wire pushing block is provided with a pushing block blind hole that opens forward and is aligned with the synchronization block single wire hole of the lifting synchronization block in front and back; a compression spring arranged horizontally and transversely is installed between the lifting synchronization block and the single wire pushing block, the front end of the compression spring abuts against the lifting synchronization block, and the rear end of the compression spring abuts against the single wire pushing block;

[0014] The cutting and pushing fixing seat is provided with a pushing block driving mechanism corresponding to the monofilament pushing block, and the pushing block driving mechanism is drivingly connected with the monofilament pushing block.

[0015] The pushing block driving mechanism includes a driving swing arm located at the rear end side of the cutting and pushing fixed seat, the cutting and pushing fixed seat is screwed with a swing arm hinge seat corresponding to the driving swing arm, and the middle part of the driving swing arm is hinged to the swing arm hinge seat through a pivot;

[0016] The upper end of the driving swing arm is the pushing block driving end, and the upper end of the pushing block driving end extends to the upper end side of the cutting and pushing fixing seat; the lower end of the driving swing arm is the swing arm driving end, and the cutting and pushing fixing seat is equipped with a swing arm driving cylinder corresponding to the driving swing arm, and the extended end of the piston rod of the swing arm driving cylinder is drivingly connected to the swing arm driving end.

[0017] Among them, a pushing guide block is also embedded in the fixed seat accommodating cavity of the cutting and pushing fixed seat, and the lifting synchronization block corresponds to the push guide block and has a synchronization block through hole that completely penetrates the front and back. The single-wire pushing block corresponds to the push guide block and has a pushing block through hole that completely penetrates the front and back. The front end of the pushing guide block is embedded in the synchronization block through hole of the lifting synchronization block, and the rear end of the pushing guide block is embedded in the pushing block through hole of the monofilament pushing block.

[0018] Wherein, a vertically arranged tension spring is embedded in the fixed seat accommodating cavity of the cutting and pushing fixed seat, and the tension spring is located between the cutting lifting block and the cutting and pushing fixed seat, the upper end of the tension spring is connected to the cutting lifting block, and the lower end of the tension spring is connected to the cutting and pushing fixed seat;

[0019] The cutting lifting block is provided with a lifting block threaded hole which completely passes through the lifting block from top to bottom. A vertically arranged limit adjustment screw is screwed into the lifting block threaded hole. The lower end of the limit adjustment screw extends to the lower end side of the cutting lifting block.

[0020] When the cutting lifting block is at the lower limit position, the lower end surface of the limit adjustment screw abuts against the cutting push fixing seat, and the single wire hole of the fixing seat, the single wire hole of the synchronization block, and the blind hole of the push block are aligned in sequence from front to back.

[0021] The chain tooth extrusion mechanism includes a chain tooth extrusion positioning block screwed onto the upper end of the cutting and pushing fixed seat, a chain tooth extrusion through hole completely penetrating the front and back is formed between the chain tooth extrusion positioning block and the cutting and pushing fixed seat, and the chain tooth extrusion through hole is located on the upper end side of the single wire hole of the fixed seat;

[0022] The upper end of the cutting and pushing fixing seat is screwed with a left driving cylinder located on the left end side of the chain tooth extrusion positioning block and a right driving cylinder located on the right end side of the chain tooth extrusion positioning block. The extended end of the piston rod of the left driving cylinder is equipped with a left driving block, and the extended end of the piston rod of the right driving cylinder is equipped with a right driving block.

[0023] The left driving block is equipped with a left extrusion movable block extending into the chain tooth extrusion through hole, and the right driving block is equipped with a right extrusion movable block extending into the chain tooth extrusion through hole. The left extrusion movable block and the right extrusion movable block are opposite to each other and arranged at intervals; the right end edge of the left extrusion movable block is provided with a left extrusion flange protruding toward the right, and the left end edge of the right extrusion movable block is provided with a right extrusion flange protruding toward the left, and the left extrusion flange and the right extrusion flange are arranged in a straight line.

[0024] Among them, the monofilament pressing mechanism includes a monofilament pressing driving cylinder which is screwed on the upper surface of the chain tooth extrusion positioning block and moves up and down, and the extended end of the piston rod of the monofilament pressing driving cylinder is equipped with a movable pressing block which extends into the chain tooth extrusion through hole.

[0025] The chain belt positioning fixture includes a chain belt positioning fixing seat, and the upper end of the chain belt positioning fixing seat is equipped with a welding lower mold;

[0026] The left and right ends of the welding lower die are respectively equipped with chain belt pressure blocks, and the chain belt positioning and fixing seats are respectively opened with drive rod through holes that completely penetrate the upper and lower parts corresponding to each chain belt pressure block, and a pressure block driving rod is respectively embedded in each driving rod through hole, and each chain belt pressure block is respectively screwed and fastened to the upper end of the corresponding pressure block driving rod; the lower end of the chain belt positioning and fixing seat is screwed with a pressure block driving cylinder that moves up and down, and the extended end of the piston rod of the pressure block driving cylinder is equipped with a driving cross bar, and the lower end of each pressure block driving rod is respectively connected to the driving cross bar;

[0027] The rear end side of the welding lower mold is equipped with a chain belt limit block that moves up and down. The chain belt positioning fixing seat is equipped with a chain belt limit driving cylinder that moves up and down corresponding to the chain belt limit block. The extended end of the piston rod of the chain belt limit driving cylinder is driven and connected to the chain belt limit block.

[0028] Among them, the ultrasonic welding mechanism includes an ultrasonic welding fixed seat, the upper end of the ultrasonic welding fixed seat is screwed with an ultrasonic welding driving cylinder that moves up and down, the outer end of the piston rod of the ultrasonic welding driving cylinder is equipped with an ultrasonic welding movable seat, and the ultrasonic welding movable seat is equipped with an ultrasonic welding tool head.

[0029] The beneficial effects of the present invention are as follows: the automatic threading and melting stop device for a nylon zipper according to the present invention includes a feeder, an automatic threading assembly, a threading traction assembly, an automatic melting stop assembly, and a melting stop traction assembly arranged in sequence from front to back along the conveying direction of the zipper chain; the automatic threading assembly includes a monofilament supply mechanism, a monofilament cutting and pushing mechanism located at the rear end side of the monofilament supply mechanism, a tooth squeezing mechanism for squeezing the left and right teeth of the zipper chain inward, and a monofilament pressing mechanism for pressing the nylon monofilament between the left and right teeth is installed above the monofilament cutting and pushing mechanism; the automatic melting stop assembly includes a chain belt positioning jig, and an ultrasonic welding mechanism located above the chain belt positioning jig. Through the above structural design, the present invention can automatically and efficiently realize the threading and melting stop operations of the nylon zipper, that is, the present invention has the advantages of novel structural design, high degree of automation, high working efficiency, and strong and stable bottom stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0031] Figure 1 It is a structural schematic diagram of the wire threading part of the present invention.

[0032] Figure 2 It is a structural schematic diagram of the automatic wire threading assembly of the present invention.

[0033] Figure 3 It is a structural schematic diagram of the monofilament feeding mechanism of the present invention.

[0034] Figure 4 It is a cross-sectional schematic diagram of the monofilament feeding mechanism of the present invention.

[0035] Figure 5 It is a schematic diagram of the partial structure of the automatic wire threading assembly of the present invention.

[0036] Figure 6 This is a schematic diagram of the partial structure of the automatic wire threading assembly of the present invention from another perspective.

[0037] Figure 7 It is a cross-sectional schematic diagram of the monofilament cutting and pushing mechanism of the present invention.

[0038] Figure 8 It is a structural schematic diagram of the automatic melting stop assembly of the present invention.

[0039] Figure 9 Schematic diagram of the structure of the chain belt positioning fixture of the present invention.

[0040] Figure 10 Schematic cross-sectional view of the chain belt positioning jig of the present invention.

[0041] Figure 11 It is a cross-sectional schematic diagram of another position of the chain belt positioning fixture of the present invention.

[0042] Figure 12 It is a structural schematic diagram of the fixed-inch port sensing mechanism of the present invention.

[0043] Figure 13 It is a structural schematic diagram of the wire threading and pulling assembly or the melting and stopping and pulling assembly of the present invention.

[0044] exist Figures 1 to 13 These include:

[0045] 1——Feeder 2——Automatic wire threading assembly

[0046] 21——Monofilament supply mechanism 211——Monofilament supply mounting frame

[0047] 212——Mountain wire feeding drive cylinder 213——Mountain wire feeding movable seat

[0048] 2131——Single wire hole of movable seat 2132——Accommodation cavity of movable seat

[0049] 214——Single wire clamp 215——Clamp drive cylinder

[0050] 22——Single wire cutting and pushing mechanism 221——Cutting and pushing fixed seat

[0051] 2211——Fixer seat accommodating cavity 2212——Fixer seat single wire hole

[0052] 222——Cut off the lifting block

[0053] 224——Lifting synchronization block 2241——Single wire hole of synchronization block

[0054] 2242——Synchronous block through hole 225——Single wire push block

[0055] 2251——Push block blind hole 2252——Push block through hole

[0056] 226——Push block driving mechanism 2261——Drive swing arm

[0057] 22611——Push block drive end 22612——Swing arm drive end

[0058] 2262——Swing arm hinge seat 227——Push guide block

[0059] 228——tension spring 229——limit adjustment screw

[0060] 23——Chain tooth extrusion mechanism 231——Chain tooth extrusion positioning block

[0061] 232——Chain tooth extrusion hole 2331——Left side drive cylinder

[0062] 2332——Right drive cylinder 2341——Left drive block

[0063] 2342——Right driving block 2351——Left extrusion movable block

[0064] 23511——Left pressure flange 2352——Right extrusion movable block

[0065] 23521——Right side extrusion flange 24——Monofilament pressing mechanism

[0066] 241——Monofilament pressing drive cylinder 242——Monofilament pressing block

[0067] 3——Wire threading and pulling assembly 4——Automatic melting stop assembly

[0068] 41——Chain belt positioning fixture 411——Chain belt positioning fixing seat

[0069] 4111——driving rod through hole 412——welding lower die

[0070] 413——Chain belt pressure block 414——Press block drive rod

[0071] 415——Press block drive cylinder 416——Drive crossbar

[0072] 417——Chain limit block 418——Chain limit drive cylinder

[0073] 42——Ultrasonic welding mechanism 421——Ultrasonic welding fixing seat

[0074] 422——Ultrasonic welding drive cylinder 423——Ultrasonic welding movable seat

[0075] 424——Ultrasonic welding tool head 5——Melt down and stop traction assembly

[0076] 6——Fixed size sensing mechanism 61——Chain belt lower guide block

[0077] 62——Chain belt upper guide block 621——Upper guide block slot

[0078] 63——Chain guide groove 64——Induction mounting bracket

[0079] 65——Inductive swing arm 651——Sensor sensing end

[0080] 652——Induction plate installation end 66——Moveable induction plate

[0081] 67——Reset drive spring 68——Position sensing sensor

[0082] 71——Traction mounting bracket 711——Guide hole

[0083] 72——Traction drive motor 73——Traction driving wheel

[0084] 74——Traction movable seat 75——Traction movable swing arm

[0085] 761——Front traction driven wheel 762——Rear traction driven wheel

[0086] 77——Guide column 78——Pressure spring. DETAILED DESCRIPTION

[0087] The present invention will be described below with reference to specific embodiments.

[0088] A nylon zipper automatic threading and melting stop device comprises a feeder 1, an automatic threading assembly 2, a threading and pulling assembly 3, an automatic melting stop assembly 4, and a melting stop and pulling assembly 5, which are arranged in sequence from front to back along the conveying direction of the zipper chain.

[0089] Further, such as Figure 1 and Figure 2 As shown, the automatic threading assembly 2 includes a monofilament feeding mechanism 21, a monofilament cutting and pushing mechanism 22 located at the rear end side of the monofilament feeding mechanism 21, and a chain tooth squeezing mechanism 23 for squeezing the left chain teeth and the right chain teeth of the zipper chain inward, and a monofilament pressing mechanism 24 for pressing the nylon monofilament between the left chain teeth and the right chain teeth.

[0090] Furthermore, Figure 8 As shown, the automatic melting stop assembly 4 includes a chain belt positioning fixture 41 and an ultrasonic welding mechanism 42 located above the chain belt positioning fixture 41 .

[0091] In the process of the automatic threading and melting-stopping device for a nylon zipper of the present invention realizing the automatic threading and melting-stopping operation of the nylon zipper, the nylon zipper chain tape and the nylon monofilament are respectively placed at the position of the feeder 1, and the nylon zipper chain tape and the nylon monofilament are respectively pulled out from the feeder 1; for the nylon zipper chain tape, it passes through the threading traction component 3, and the threading traction component 3 pulls the nylon zipper chain tape to move from front to back. During operation, the nylon zipper chain enters the position of the chain tooth squeezing mechanism 23 under the traction of the wire threading traction component 3. The chain tooth squeezing mechanism 23 squeezes the left and right chain teeth of the nylon zipper chain, and squeezes the left and right chain teeth inward respectively to ensure that there is enough wire threading space between the left and right chain teeth; the nylon monofilament delivered by the feeder 1 is delivered to the monofilament cutting and pushing mechanism 22 at a fixed length through the monofilament feeding mechanism 21, and the monofilament cutting and pushing mechanism 22 pushes the cut nylon monofilament to the chain tooth squeezing position of the nylon zipper chain; after the cut nylon monofilament is delivered to the chain tooth squeezing position of the nylon zipper chain, the monofilament pressing mechanism 24 presses the nylon monofilament and the left and right chain teeth of the nylon zipper chain to complete the automatic wire threading operation.

[0092] After the automatic threading component 2 completes the nylon monofilament threading operation, the nylon zipper chain is sent to the position of the automatic melt-down stop component 4 under the traction drive of the melt-down stop traction component 5. The automatic melt-down stop component 4 positions the threaded nylon zipper chain through the chain positioning fixture 41, and then the ultrasonic welding mechanism 42 welds the nylon monofilament and the chain teeth of the nylon zipper chain together to complete the melt-down stop operation.

[0093] From the above, it can be seen that through the above structural design, the present invention can automatically and efficiently realize the nylon zipper threading and bottom stop melting operations, that is, the present invention has the advantages of novel structural design, high degree of automation, high work efficiency, strong and stable bottom stop.

[0094] As a preferred embodiment, Figure 3 and Figure 4 As shown, the monofilament supply mechanism 21 includes a monofilament supply mounting frame 211, the upper end of the monofilament supply mounting frame 211 is equipped with a monofilament supply driving cylinder 212 which moves horizontally forward and backward, the outer end of the piston rod of the monofilament supply driving cylinder 212 is equipped with a monofilament supply movable seat 213, and the monofilament supply movable seat 213 is provided with a movable seat monofilament hole 2131 which completely penetrates from front to back and allows nylon monofilament to pass through.

[0095] Further, the monofilament feeding movable seat 213 is provided with a movable seat accommodating cavity 2132 which is downwardly open and communicated with the movable seat monofilament hole 2131, and the movable seat accommodating cavity 2132 is embedded with a monofilament clamp block 214. The lower end of the monofilament feeding movable seat 213 is provided with a clamp block driving cylinder 215 which moves up and down at the lower end side of the monofilament clamp block 214. The outer extension end of the piston rod of the clamp block driving cylinder 215 is connected with the lower end of the monofilament clamp block 214.

[0096] In the process of the monofilament feeding mechanism 21 of the application realizing the fixed-length feeding of the nylon monofilament to the monofilament cutting and pushing mechanism 22 side, the nylon monofilament sent out from the feeder 1 enters into the movable seat monofilament hole 2131 of the monofilament feeding movable seat 213. When the nylon monofilament is fed in fixed length, the clamp block driving cylinder 215 is actuated and the monofilament clamp block 214 is moved upward. The upwardly moving monofilament clamp block 214 clamps the nylon monofilament in the movable seat monofilament hole 2131. After the nylon monofilament is clamped by the monofilament clamp block 214, the monofilament feeding driving cylinder 212 is actuated and the monofilament feeding driving cylinder 212 pushes the monofilament feeding movable seat 213 to move backward. Since the nylon monofilament is compressed, in this process, the nylon monofilament moves backward synchronously with the monofilament feeding movable seat 213 to realize the fixed-length feeding of the nylon monofilament to the position of the monofilament cutting and pushing mechanism 22.

[0097] As a preferred embodiment, as shown in Figure 5 and Figure 6 The chain tooth extrusion mechanism 23 comprises a chain tooth extrusion positioning block 231 which is screwed on the upper end of the cutting and pushing fixed seat 221. The chain tooth extrusion positioning block 231 and the cutting and pushing fixed seat 221 are formed with a chain tooth extrusion through hole 232 which is completely penetrated from front to back and is located at the upper end side of the fixed seat monofilament hole 2212.

[0098] The upper end of the cutting and pushing fixed seat 221 is screwed with a left side driving cylinder 2331 which is located at the left end side of the chain tooth extrusion positioning block 231 and a right side driving cylinder 2332 which is located at the right end side of the chain tooth extrusion positioning block 231. The outer extension end of the piston rod of the left side driving cylinder 2331 is provided with a left side driving block 2341, and the outer extension end of the piston rod of the right side driving cylinder 2332 is provided with a right side driving block 2342.

[0099] Further, the left driving block 2341 is provided with a left extrusion movable block 2351 extending into the chain tooth extrusion through hole 232, the right driving block 2342 is provided with a right extrusion movable block 2352 extending into the chain tooth extrusion through hole 232, the left extrusion movable block 2351 and the right extrusion movable block 2352 are arranged in left-right opposite and spaced manner; the right end edge portion of the left extrusion movable block 2351 is provided with a left extrusion flange protruding to the right side, the left end edge portion of the right extrusion movable block 2352 is provided with a right extrusion flange 23521 protruding to the left side, and the left extrusion flange and the right extrusion flange 23521 are arranged in right-left opposite manner.

[0100] In the process of the chain tooth extrusion mechanism 23 of the application to realize the chain tooth extrusion operation of the nylon zipper chain, the threading traction assembly 3 sends the nylon zipper chain sent out by the feeder 1 into the chain tooth extrusion through hole 232; after the nylon zipper chain is positioned, the left driving cylinder 2331 and the right driving cylinder 2332 act, the left driving cylinder 2331 drives the left driving block 2341 and the left extrusion movable block 2351 to move to the right, the right driving cylinder 2332 drives the right driving block 2342 and the right extrusion movable block 2352 to move to the left, in the process, the left extrusion movable block 2351 pushes the left chain tooth of the left chain to the right through the left extrusion flange, the right extrusion movable block 2352 pushes the right chain tooth of the right chain to the left through the right extrusion flange 23521, so that the left chain tooth and the right chain tooth are extruded, and then the left chain tooth and the right chain tooth have enough space to pass through the nylon monofilament.

[0101] As a preferred embodiment, as shown in Figures 5 to 7 The monofilament cutting and pushing mechanism 22 includes a cutting and pushing fixed seat 221, the cutting and pushing fixed seat 221 is provided with a fixed seat containing cavity 2211 opening upward, the cutting and pushing fixed seat 221 is provided with a fixed seat monofilament hole 2212 opening forward and communicating with the fixed seat containing cavity 2211 at the front end side of the fixed seat containing cavity 2211; the fixed seat containing cavity 2211 is embedded with a cutting and lifting block 222, the lower end portion of the cutting and pushing fixed seat 221 is provided with a cutting and lifting driving cylinder acting up and down, the outer extension end portion of the piston rod of the cutting and lifting driving cylinder is connected with the lower end portion of the cutting and lifting block 222.

[0102] Among them, the upper end of the cutting lifting block 222 is fastened with a lifting synchronization block 224, and the lifting synchronization block 224 has a synchronization block single wire hole 2241 that completely passes through the front and back; the rear end side of the lifting synchronization block 224 is equipped with a single wire pushing block 225 that moves horizontally front and back relative to the lifting synchronization block 224, and the single wire pushing block 225 has a pushing block blind hole 2251 that opens forward and is aligned front and back with the synchronization block single wire hole 2241 of the lifting synchronization block 224; a compression spring arranged horizontally and laterally is installed between the lifting synchronization block 224 and the single wire pushing block 225, the front end of the compression spring abuts against the lifting synchronization block 224, and the rear end of the compression spring abuts against the single wire pushing block 225.

[0103] In addition, the cutting and pushing fixing seat 221 is provided with a pushing block driving mechanism 226 corresponding to the monofilament pushing block 225 , and the pushing block driving mechanism 226 is drivingly connected to the monofilament pushing block 225 .

[0104] For the pushing block driving mechanism 226 of the present invention, it can adopt the following structural design, specifically: the pushing block driving mechanism 226 includes a driving swing arm 2261 located at the rear end side of the cutting pushing fixed seat 221, and the cutting pushing fixed seat 221 is screwed with a swing arm hinge seat 2262 corresponding to the driving swing arm 2261, and the middle part of the driving swing arm 2261 is hinged to the swing arm hinge seat 2262 through a pivot; the upper end of the driving swing arm 2261 is the pushing block driving end 22611, and the upper end of the pushing block driving end 22611 extends to the upper end side of the cutting pushing fixed seat 221; the lower end of the driving swing arm 2261 is the swing arm driving end 22612, and the cutting pushing fixed seat 221 is equipped with a swing arm driving cylinder corresponding to the driving swing arm 2261, and the extended end of the piston rod of the swing arm driving cylinder is drivingly connected to the swing arm driving end 22612.

[0105] In addition, to ensure that the monofilament push block 225 moves forward and backward smoothly and reliably, the present invention adopts the following guide structure design: specifically, a push guide block 227 is also embedded in the fixed seat accommodating cavity 2211 of the cutting push fixed seat 221, the lifting synchronization block 224 has a synchronization block through-hole 2242 that completely penetrates the push guide block 227, and the monofilament push block 225 has a push block through-hole 2252 that completely penetrates the push guide block 227. The front end of the push guide block 227 is embedded in the synchronization block through-hole 2242 of the lifting synchronization block 224, and the rear end of the push guide block 227 is embedded in the push block through-hole 2252 of the monofilament push block 225. When the push block driving mechanism 226 drives the monofilament push block 225 to move forward and backward, the push block through-hole 2252 of the monofilament push block 225 cooperates with the push guide block 227 to ensure the smooth movement of the monofilament push block 225.

[0106] In the process of the monofilament cutting and pushing mechanism 22 of the present invention realizing the cutting and pushing of the nylon monofilament, the nylon monofilament fed in at a fixed length by the monofilament feeding mechanism 21 is inserted into the synchronous block monofilament hole of the lifting synchronous block 224 and the pushing block blind hole 2251 of the monofilament pushing block 225. When cutting, the cutting lifting drive cylinder drives the cutting lifting block 222 to move upward, and the upward moving cutting lifting block 222 drives the lifting synchronous block 224 and the monofilament pushing block 225 to move upward synchronously. In this process, the cutting lifting block 222 is misaligned with the cutting pushing fixed seat 221 and cuts the nylon monofilament. The cut nylon monofilament is retained in the synchronous block. The block monofilament hole 2241 and the pushing block blind hole 2251 are arranged in the block; after the cutting lifting drive cylinder drives the cutting lifting block 222 to move to the upper limit position, the swing arm driving cylinder drives the swing arm 2261 driving part to move upward, so that the pushing block driving end 22611 of the driving swing arm 2261 swings forward, and the forward-swinging pushing block driving end 2261 pushes the monofilament pushing block 225 forward, so that the cut nylon monofilament is pushed into between the left chain tooth and the right chain tooth of the nylon zipper chain; after the cut nylon monofilament is threaded, the cutting lifting drive cylinder and the swing arm driving cylinder reset to complete the threading operation.

[0107] As a preferred embodiment, Figure 7 As shown, a vertically arranged tension spring 228 is embedded in the fixed seat accommodating cavity 2211 of the cutting push fixed seat 221. The tension spring 228 is located between the cutting lifting block 222 and the cutting push fixed seat 221. The upper end of the tension spring 228 is connected to the cutting lifting block 222, and the lower end of the tension spring 228 is connected to the cutting push fixed seat 221.

[0108] Among them, the cutting lifting block 222 is provided with a lifting block threaded hole that completely passes through the upper and lower parts. A vertically arranged limit adjustment screw 229 is screwed into the lifting block threaded hole, and the lower end of the limit adjustment screw 229 extends to the lower end side of the cutting lifting block 222.

[0109] During operation, when the cutting lifting block 222 is at the lower limit position, the lower end face of the limit adjustment screw 229 abuts against the cutting push fixing seat 221, and the fixing seat single wire hole 2212, the synchronization block single wire hole 2241, and the push block blind hole 2251 are aligned in sequence from front to back.

[0110] During the operation of the present invention, the staff can adjust the lower limit position of the cutting lifting block 222 through the limit adjustment screw 229 to ensure that the fixed seat monofilament hole 2212 and the synchronization block monofilament hole 2241 are aligned front to back when the cutting lifting block 222 moves down to the lower limit position, thereby ensuring that the nylon monofilament can be accurately inserted into the synchronization block monofilament hole 2241 and the push block blind hole 2251.

[0111] For the tension spring 228 of the present invention, when the cutting lifting block 222 moves down and resets, the pull rope spring can ensure that the cutting lifting block 222 is stably reset, and ensure that the limit adjustment screw 229 accurately abuts against the cutting push fixing seat 221, thereby accurately ensuring that the cutting lifting block 222 can move down to the lower limit position when it moves down and resets.

[0112] As a preferred embodiment, Figure 5 As shown, the monofilament pressing mechanism 24 includes a monofilament pressing driving cylinder 241 which is screwed onto the upper surface of the tooth extrusion positioning block 231 and moves up and down. The outer end of the piston rod of the monofilament pressing driving cylinder 241 is equipped with a movable pressing block which extends into the tooth extrusion through hole 232.

[0113] When the monofilament pressing mechanism 24 presses the cut nylon monofilament, the monofilament pressing driving cylinder 241 drives the movable pressing block to move downward, and the downward moving movable pressing block presses the cut nylon monofilament together with the left and right chain teeth.

[0114] As a preferred embodiment, Figures 9 to 11 As shown, the chain belt positioning fixture 41 includes a chain belt positioning and fixing seat 411 , and a welding lower mold 412 is installed at the upper end of the chain belt positioning and fixing seat 411 .

[0115] Among them, the left and right ends of the welding lower mold 412 are respectively equipped with chain pressure blocks 413, and the chain positioning and fixing seat 411 is respectively opened with a drive rod through hole 4111 that completely penetrates the upper and lower parts corresponding to each chain pressure block 413, and a pressure block driving rod 414 is respectively embedded in each driving rod through hole 4111, and each chain pressure block 413 is respectively screwed and fastened to the upper end of the corresponding pressure block driving rod 414; the lower end of the chain positioning and fixing seat 411 is screwed with a pressure block driving cylinder 415 that moves up and down, and the extended end of the piston rod of the pressure block driving cylinder 415 is equipped with a driving cross bar 416, and the lower end of each pressure block driving rod 414 is respectively connected to the driving cross bar 416.

[0116] In addition, a chain belt limit block 417 that moves up and down is installed on the rear end side of the welding lower mold 412, and a chain belt limit driving cylinder 418 that moves up and down is installed on the chain belt positioning fixing seat 411 corresponding to the chain belt limit block 417, and the extended end of the piston rod of the chain belt limit driving cylinder 418 is driven and connected to the chain belt limit block 417.

[0117] For the ultrasonic welding mechanism 42 of the present invention, Figure 8As shown, it can adopt the following structural design, specifically: the ultrasonic welding mechanism 42 includes an ultrasonic welding fixed seat 421, the upper end of the ultrasonic welding fixed seat 421 is screwed with an ultrasonic welding driving cylinder 422 that moves up and down, the outer extension end of the piston rod of the ultrasonic welding driving cylinder 422 is equipped with an ultrasonic welding movable seat 423, and the ultrasonic welding movable seat 423 is equipped with an ultrasonic welding tool head 424.

[0118] In the process of the automatic melting stop component 4 of the present invention to realize the lower stop ultrasonic welding processing, the nylon zipper chain belt that has been threaded is transferred to the chain belt positioning fixture 41 under the driving action of the melting stop traction component 5, and the chain belt positioning fixture 41 positions the nylon zipper chain belt. After positioning, the ultrasonic welding drive cylinder 422 drives the ultrasonic welding movable seat 423 to move downward, and the ultrasonic welding movable seat 423 moving downward drives the ultrasonic welding tool head 424 to move downward synchronously. The ultrasonic welding tool head 424 moving downward cooperates with the welding lower mold and makes the cut nylon monofilament melt together with the left chain teeth and the right chain teeth to complete the lower stop welding operation.

[0119] For the chain belt positioning jig 41 of the present invention, in the process of realizing the positioning of the nylon zipper chain belt, the chain belt limiting driving cylinder 418 first drives the chain belt limiting block 417 to move upward and inserts the chain belt limiting block 417 into the fixed size opening of the nylon chain belt, and the chain belt limiting block 417 limits the nylon zipper chain belt; after the nylon zipper chain belt is limited, the pressure block driving cylinder 415 is actuated and drives the driving cross bar 416 to move downward, and the downward moving driving cross bar 416 drives the two pressure block driving rods 414 to move downward respectively, and each pressure block driving rod 414 drives the corresponding chain belt pressure block 413 to move downward respectively, so that the chain belt pressure block 413 presses and fixes the left and right chain belts on the corresponding side to ensure that the left and right chain belts will not shift when the lower stop is welded, so as to improve the stability and reliability of the lower stop welded.

[0120] As a preferred embodiment, Figure 2 、 Figure 5 、 Figure 8 、 Figure 10 as well as Figure 12 As shown, the chain tooth extrusion mechanism 23 and the chain belt positioning fixture 41 are respectively equipped with a fixed-size sensing mechanism 6.

[0121] Specifically, the fixed-size mouth sensing mechanism 6 includes a chain lower guide block 61 and a chain upper guide block 62 screwed on the upper surface of the chain lower guide block 61. A chain guide groove 63 that completely penetrates the chain upper guide block 62 and the chain lower guide block 61 is formed between the chain upper guide block 62 and the chain lower guide block 61. The chain upper guide block 62 is provided with an upper guide block through groove 621 that completely penetrates the chain upper and lower parts and is vertically aligned with the chain guide groove 63.

[0122] In addition, the upper surface of the chain belt upper guide block 62 is screwed with an induction mounting bracket 64 on the front end side of the upper guide block through slot 621, and the induction mounting bracket 64 is hinged with an induction movable rocker arm 65 through a pivot, the upper end of the induction movable rocker arm 65 is the sensor sensing end 651, and the lower end of the induction movable rocker arm 65 is the induction piece mounting end 652, and the induction piece mounting end 652 is screwed with a movable induction piece 66 aligned with the upper guide block through slot 621; the induction mounting bracket 64 and the induction movable rocker arm 65 bracket are equipped with a reset drive spring 67, one end of the reset drive spring 67 abuts against the sensor sensing end 651 of the induction movable rocker arm 65, and the other end of the reset drive spring 67 abuts against the induction mounting bracket 64; the induction mounting bracket 64 is screwed with a position sensing sensor 68 corresponding to the sensor sensing end 651 of the induction movable rocker arm 65.

[0123] For the chain element extrusion mechanism 23 of the present invention, when in operation, the fixed-size opening sensing mechanism 6 first senses the fixed-size opening of the nylon zipper chain, and the fixed-size opening sensing mechanism 6 cooperates with the threading traction assembly 3 to ensure that the nylon zipper chain accurately enters the threading position. For the chain belt positioning fixture 41 of the present invention, when in operation, the fixed-size opening sensing mechanism 6 first senses the fixed-size opening of the nylon zipper chain, and the fixed-size opening sensing mechanism 6 cooperates with the chain belt limit driving cylinder 418 to ensure that the chain belt limit block 417 can be accurately inserted into the fixed-size opening of the nylon zipper chain.

[0124] Specifically, in the process of the fixed-size opening sensing mechanism 6 sensing the nylon zipper chain, the reset drive spring 67 pushes the sensor sensing end 651 of the sensing movable rocker arm 65, so that the movable sensing piece 66 presses the nylon zipper chain downward; when the fixed-size opening position of the nylon zipper chain moves to the position of the movable sensing piece 66, the elastic force of the reset drive spring 67 causes the movable sensing piece 66 to be inserted into the fixed-size opening. At this time, the distance between the sensor sensing end 651 of the sensing movable rocker arm 65 and the position sensing sensor 68 changes, so as to realize fixed-size opening sensing.

[0125] As a preferred embodiment, Figure 13 As shown, the wire threading traction assembly 3 and the melting stop traction assembly 5 respectively include a traction mounting bracket 71, the traction mounting bracket 71 is screwed with a traction drive motor 72, and the power output shaft of the traction drive motor 72 is equipped with a traction driving wheel 73;

[0126] A traction movable seat 74 is mounted on the upper end of the traction driving wheel 73. A traction movable swing arm 75 is mounted on the traction movable seat 74 via a pivot hinge. The front end of the traction movable swing arm 75 extends to the front end of the traction movable seat 74, and the rear end of the traction movable swing arm 75 extends to the rear end of the traction movable seat 74. The front end of the traction movable swing arm 75 is mounted on a front traction driven wheel 761, and the rear end of the traction movable swing arm 75 is mounted on a rear traction driven wheel 762.

[0127] The traction movable seat 74 is equipped with a guide column 77 extending vertically upward, and the traction mounting bracket 71 is provided with a guide hole 711 that completely penetrates the upper and lower parts corresponding to the guide column 77. The upper end of the guide column 77 is inserted into the guide hole 711 of the traction mounting bracket 71; the outer periphery of the guide column 77 is sheathed with a holding spring 78, the upper end of the holding spring 78 abuts against the traction mounting bracket 71, and the lower end of the compression spring abuts against the traction movable seat 74.

[0128] In the process of realizing the traction movement of the nylon zipper chain, the nylon zipper chain enters between the traction driving wheel 73 and the traction driven wheel. Under the elastic force of the holding spring 78, the front traction driven wheel 761 and the rear traction driven wheel 762 respectively press the nylon zipper chain. Under the driving action of the traction drive motor 72, the traction driving wheel 73 cooperates with the traction driven wheel to realize the traction movement of the nylon zipper chain.

[0129] 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 may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A nylon zipper automatic threading and melting stop device, characterized by: It comprises a feeder (1), an automatic wire threading assembly (2), a wire threading traction assembly (3), an automatic melting stop assembly (4), and a melting stop traction assembly (5), which are arranged in sequence from front to back along the conveying direction of the zipper chain; The automatic threading assembly (2) includes a monofilament feeding mechanism (21), a monofilament cutting and pushing mechanism (22) located at the rear end side of the monofilament feeding mechanism (21), a chain tooth squeezing mechanism (23) for squeezing the left chain teeth and the right chain teeth of the zipper chain inward, and a monofilament pressing mechanism (24) for pressing the nylon monofilament between the left chain teeth and the right chain teeth, mounted above the monofilament cutting and pushing mechanism (22); The automatic melting stop assembly (4) includes a chain belt positioning jig (41) and an ultrasonic welding mechanism (42) located above the chain belt positioning jig (41); The monofilament supply mechanism (21) includes a monofilament supply mounting frame (211), the upper end of the monofilament supply mounting frame (211) is equipped with a monofilament supply driving cylinder (212) that moves horizontally forward and backward, the outer end of the piston rod of the monofilament supply driving cylinder (212) is equipped with a monofilament supply movable seat (213), and the monofilament supply movable seat (213) is provided with a movable seat monofilament hole (2131) that completely penetrates the front and back and is used for the passage of nylon monofilament. The monofilament supply movable seat (213) is provided with a movable seat accommodating chamber (2132) which opens downward and is in communication with the movable seat monofilament hole (2131); a monofilament clamping block (214) is embedded in the movable seat accommodating chamber (2132); a clamping block driving cylinder (215) which moves up and down is installed at the lower end of the monofilament supply movable seat (213) on the lower end side of the monofilament clamping block (214); and an extended end of a piston rod of the clamping block driving cylinder (215) is connected to the lower end of the monofilament clamping block (214); The monofilament cutting and pushing mechanism (22) comprises a cutting and pushing fixed seat (221), the cutting and pushing fixed seat (221) is provided with a fixed seat accommodating chamber (2211) opening upward, and the cutting and pushing fixed seat (221) is provided with a fixed seat monofilament hole (2212) opening forward and communicating with the fixed seat accommodating chamber (2211) at the front end side of the fixed seat accommodating chamber (2211); a cutting lifting block (222) is embedded in the fixed seat accommodating chamber (2211), and a cutting lifting drive cylinder that moves up and down is installed at the lower end of the cutting and pushing fixed seat (221), and the outer extension end of the piston rod of the cutting lifting drive cylinder is connected to the lower end of the cutting lifting block (222); The upper end of the cutting lifting block (222) is fastened with a lifting synchronization block (224), and the lifting synchronization block (224) is provided with a synchronization block single wire hole (2241) that completely penetrates the front and rear ends; the rear end side of the lifting synchronization block (224) is provided with a single wire pushing block (225) that moves horizontally relative to the lifting synchronization block (224) front and rear, and the single wire pushing block (225) is provided with a pushing block blind hole (2251) that opens forward and is aligned with the synchronization block single wire hole (2241) of the lifting synchronization block (224) front and rear; a compression spring arranged horizontally and transversely is provided between the lifting synchronization block (224) and the single wire pushing block (225), the front end of the compression spring abuts against the lifting synchronization block (224), and the rear end of the compression spring abuts against the single wire pushing block (225); The cutting push fixing seat (221) is provided with a push block driving mechanism (226) corresponding to the monofilament push block (225), and the push block driving mechanism (226) is drivingly connected to the monofilament push block (225).

2. The automatic threading and melting stop device for nylon zippers according to claim 1, characterized in that: The pushing block driving mechanism (226) includes a driving swing arm (2261) located at the rear end side of the cutting and pushing fixing seat (221); a swing arm hinge seat (2262) is screwed onto the cutting and pushing fixing seat (221) corresponding to the driving swing arm (2261); and a middle portion of the driving swing arm (2261) is hinged to the swing arm hinge seat (2262) via a pivot. The upper end of the driving swing arm (2261) is the pushing block driving end (22611), and the upper end of the pushing block driving end (22611) extends to the upper end side of the cutting and pushing fixing seat (221); the lower end of the driving swing arm (2261) is the swing arm driving end (22612), and the cutting and pushing fixing seat (221) is provided with a swing arm driving cylinder corresponding to the driving swing arm (2261), and the extended end of the piston rod of the swing arm driving cylinder is drivingly connected to the swing arm driving end (22612).

3. The automatic threading and melting stop device for nylon zippers according to claim 1, characterized in that: A push guide block (227) is further embedded in the fixed seat accommodating cavity (2211) of the cutting push fixed seat (221); a synchronization block through hole (2242) completely passing through the lifting synchronization block (224) and the push guide block (227) is opened; a push block through hole (2252) completely passing through the monofilament push block (225) is opened corresponding to the push guide block (227); the front end of the push guide block (227) is embedded in the synchronization block through hole (2242) of the lifting synchronization block (224), and the rear end of the push guide block (227) is embedded in the push block through hole (2252) of the monofilament push block (225).

4. The automatic threading and melting stop device for nylon zippers according to claim 1, characterized in that: A vertically arranged tension spring (228) is embedded in the fixing seat accommodating cavity (2211) of the cutting and pushing fixing seat (221). The tension spring (228) is located between the cutting and lifting block (222) and the cutting and pushing fixing seat (221). The upper end of the tension spring (228) is connected to the cutting and lifting block (222), and the lower end of the tension spring (228) is connected to the cutting and pushing fixing seat (221). The cutting lifting block (222) is provided with a lifting block threaded hole that completely passes through the lifting block from top to bottom, and a vertically arranged limit adjustment screw (229) is screwed into the lifting block threaded hole, and the lower end of the limit adjustment screw (229) extends to the lower end side of the cutting lifting block (222); When the cutting lifting block (222) is located at the lower limit position, the lower end surface of the limit adjustment screw (229) abuts against the cutting push fixing seat (221), and the fixing seat single wire hole (2212), the synchronization block single wire hole (2241), and the push block blind hole (2251) are aligned in sequence from front to back.

5. The automatic threading and melting stop device for nylon zippers according to claim 1, characterized in that: The chain tooth extrusion mechanism (23) includes a chain tooth extrusion positioning block (231) screwed onto the upper end of the cutting and pushing fixing seat (221), a chain tooth extrusion through hole (232) completely penetrating the front and rear ends is formed between the chain tooth extrusion positioning block (231) and the cutting and pushing fixing seat (221), and the chain tooth extrusion through hole (232) is located on the upper end side of the single wire hole (2212) of the fixing seat; The upper end of the cut-off push fixing seat (221) is screwed with a left driving cylinder (2331) located on the left end side of the chain tooth extrusion positioning block (231) and a right driving cylinder (2332) located on the right end side of the chain tooth extrusion positioning block (231); the left driving block (2341) is installed on the extended end of the piston rod of the left driving cylinder (2331); and the right driving block (2342) is installed on the extended end of the piston rod of the right driving cylinder (2332); The left driving block (2341) is provided with a left extrusion movable block (2351) extending into the chain tooth extrusion through hole (232), and the right driving block (2342) is provided with a right extrusion movable block (2352) extending into the chain tooth extrusion through hole (232). The left extrusion movable block (2351) and the right extrusion movable block (2352) are opposite to each other and arranged at intervals. The right end edge of the left extrusion movable block (2351) is provided with a left extrusion flange protruding toward the right side, and the left end edge of the right extrusion movable block (2352) is provided with a right extrusion flange protruding toward the left side. The left extrusion flange and the right extrusion flange (23521) are arranged in a positive direction.

6. The automatic threading and melting stop device for nylon zippers according to claim 5, characterized in that: The monofilament pressing mechanism (24) includes a monofilament pressing driving cylinder (241) screwed onto the upper surface of the chain tooth extrusion positioning block (231) and moving up and down, and a movable pressing block extending into the chain tooth extrusion through hole (232) is installed at the extended end of the piston rod of the monofilament pressing driving cylinder (241).

7. The automatic threading and melting stop device for nylon zippers according to claim 1, characterized in that: The chain belt positioning jig (41) comprises a chain belt positioning fixing seat (411), and a welding lower mold (412) is installed at the upper end of the chain belt positioning fixing seat (411); The left and right ends of the welding lower die (412) are respectively provided with chain belt pressure blocks (413); the chain belt positioning and fixing seat (411) is respectively provided with a driving rod through hole (4111) which completely penetrates the upper and lower ends of each chain belt pressure block (413); a pressure block driving rod (414) is respectively embedded in each driving rod through hole (4111); each chain belt pressure block (413) is respectively screwed and fastened to the upper end of the corresponding pressure block driving rod (414); the lower end of the chain belt positioning and fixing seat (411) is screwed with a pressure block driving cylinder (415) which moves up and down; the outer end of the piston rod of the pressure block driving cylinder (415) is provided with a driving cross bar (416); the lower end of each pressure block driving rod (414) is respectively connected to the driving cross bar (416); A chain belt limiting block (417) that moves up and down is installed on the rear end side of the welding lower mold (412), and a chain belt limiting driving cylinder (418) that moves up and down is installed on the chain belt positioning fixing seat (411) corresponding to the chain belt limiting block (417), and the extended end of the piston rod of the chain belt limiting driving cylinder (418) is drivingly connected to the chain belt limiting block (417).

8. The automatic threading and melting stop device for nylon zippers according to claim 1, characterized in that: The ultrasonic welding mechanism (42) comprises an ultrasonic welding fixed seat (421), an ultrasonic welding driving cylinder (422) that moves up and down is screwed onto the upper end of the ultrasonic welding fixed seat (421), an ultrasonic welding movable seat (423) is installed at the outer extension end of the piston rod of the ultrasonic welding driving cylinder (422), and the ultrasonic welding movable seat (423) is installed with an ultrasonic welding tool head (424).

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