A positioning injection molding structure for zipper tape in block and latch injection molding equipment

Abstract

The present invention discloses a positioning injection molding structure for a zipper tape in a block and latch injection molding device, wherein a frame is equipped with a zipper tape positioning assembly and an injection molding mold arranged in sequence from front to back along the conveying direction of the zipper tape, the injection molding mold comprises an injection molding upper mold and an injection molding lower mold, the injection molding lower mold is mounted on a mounting base, and two zipper tape grabbing assemblies are mounted between the zipper tape positioning assembly and the injection molding mold; the injection molding lower mold comprises a lower mold base, a lower mold core, and front and rear side core pulling assemblies, and a block forming groove is formed on the upper surface of the lower mold core; the front side core pulling assembly comprises a front side forming insert and a front side driving mechanism, and the rear side core pulling assembly comprises a rear side forming insert and a rear side driving mechanism; when the injection molding mold is closed for injection molding, the front side forming insert and the rear side forming insert are respectively extended into the block forming groove. Through the above structural design, the present invention has the advantages of novel design, compact structure, and accurate and stable positioning.

Description

Technical Field

[0001] The invention relates to the technical field of zipper production and processing equipment, and in particular to a positioning injection molding structure of a zipper belt in a block and latch injection molding equipment. Background Art

[0002] As for the zipper tape, it includes two chain tapes (i.e., the left chain tape and the right chain tape), the inner edges of the left chain tape and the right chain tape are respectively equipped with chain teeth arranged in sequence, and one end of one of the chain tapes is equipped with a pin, and one end of the other chain tape is equipped with a block; when the zipper is closed, the pin is inserted into the corresponding groove of the block.

[0003] During the production and processing of zipper tapes, two chain tapes form a zipper tape structure, and both chain tapes are equipped with chain teeth, and the chain teeth facing each other are meshed. For a zipper tape, it is composed of zipper units arranged in sequence, and there is a chain tape gap between two adjacent zipper units (the chain tape gap is the position where the chain teeth are not installed).

[0004] For the plugs and blocks made of plastic materials, they are generally formed on the corresponding chain belts by injection molding, and the injection molding of the blocks and plugs is generally completed by block and plug injection molding equipment. However, the existing block and plug injection molding equipment has the defects of unreasonable design and low positioning accuracy. Summary of the invention

[0005] The purpose of the present invention is to provide a positioning injection molding structure for a zipper tape in a block and latch injection molding device in view of the deficiencies in the prior art. The positioning injection molding structure for a zipper tape in a block and latch injection molding device has a novel design, a compact structure, and accurate and stable positioning.

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

[0007] A positioning injection molding structure for a zipper tape in a block and latch injection molding device comprises a frame, the frame is equipped with a zipper tape positioning assembly and an injection molding mold arranged in sequence from front to back along the conveying direction of the zipper tape, the injection molding mold comprises an injection molding upper mold fixedly mounted on the frame, and an injection molding lower mold located at the lower end side of the injection molding upper mold, the frame is equipped with a mounting base below the injection molding lower mold, the injection molding lower mold is mounted on the mounting base, and two zipper tape grabbing assemblies that are opposite to each other and arranged at intervals are mounted between the zipper tape positioning assembly and the injection molding mold;

[0008] The injection molding lower mold includes a lower mold base, a lower mold core, a front core pulling assembly, and a rear core pulling assembly. The lower mold core is installed at the upper end of the lower mold base and the upper surface of the lower mold core is formed with a square molding groove opening upward; the front core pulling assembly includes a front molding insert and a front driving mechanism for driving the front molding insert to move forward and backward; the rear core pulling assembly includes a rear molding insert and a rear driving mechanism for driving the rear molding insert to move forward and backward; when the injection molding mold is closed for injection, the front molding insert and the rear molding insert are respectively extended into the square molding groove.

[0009] Wherein, the front side driving mechanism comprises a front side cylinder seat screwed on the front end of the lower die seat, the front side cylinder seat is screwed with a front side driving cylinder for horizontal forward and backward movement, the outer extension end of the piston rod of the front side driving cylinder is equipped with a front side driving rod group, and the front side molding insert is installed on the front side driving rod group;

[0010] The rear driving mechanism includes a rear cylinder seat screwed on the rear end of the lower mold base, the rear cylinder seat is screwed with a rear driving cylinder that moves horizontally forward and backward, the outer extension end of the piston rod of the rear driving cylinder is equipped with a rear driving rod group, and the rear molding insert is installed on the rear driving rod group.

[0011] Wherein, the front driving rod group includes a front driving rod and a front guiding rod extending horizontally along the front-to-back direction, the front forming insert is screwed and fastened to the rear end of the front guiding rod, the front driving rod is fastened and installed to the outer extension end of the piston rod of the front driving cylinder, and the front driving rod and the front end of the front guiding rod are connected by mortise and tenon; the lower mold core is provided with a front guiding hole corresponding to the front guiding rod, and the front guiding rod is inserted into the front guiding hole of the lower mold core;

[0012] The rear driving rod group includes a rear driving rod and a rear guide rod extending horizontally along the front-to-back direction. The rear molding insert is screwed and fastened to the front end of the rear guide rod. The rear driving rod is fastened and installed on the extended end of the piston rod of the rear driving cylinder. The rear end of the rear driving rod is mortise and tenon connected to the rear end of the rear guide rod. A rear guide hole is opened in the lower mold core corresponding to the rear guide rod, and the rear guide rod is inserted into the rear guide hole of the lower mold core.

[0013] Wherein, the zipper tape grabbing assembly includes a grabbing mounting frame, the grabbing mounting frame includes a mounting frame bottom plate, a mounting frame top plate located at the upper end side of the mounting frame bottom plate and extending in a straight line along the front-back direction, a mounting frame vertical plate is installed between the mounting frame bottom plate and the mounting frame top plate, the upper end and the lower end of the mounting frame vertical plate are respectively screwed to the mounting frame bottom plate and the mounting frame top plate on the corresponding side through locking screws, and the mounting frame bottom plate is screwed to the mounting base through locking screws;

[0014] The mounting frame vertical plate is screwed with a push-driving cylinder that moves horizontally front and back, and a push-moving seat is installed at the outer extension end of the piston rod of the push-moving cylinder. The push-moving seat is provided with a movable seat guide hole that completely penetrates front and back, and the mounting frame top plate is inserted into the movable seat guide hole of the push-moving seat; the push-moving seat is provided with a movable seat accommodating cavity located below the movable seat guide hole, and an air claw mounting block is embedded in the movable seat accommodating cavity so as to be relatively movable left and right, and the air claw mounting block is provided with an air claw that clamps a zipper belt; the air claw mounting block is provided with an offset driving member, and the mounting frame top plate is provided with an offset driving groove that opens downwards corresponding to the offset driving member, and the offset driving member is inserted into the offset driving groove.

[0015] The top plate of the mounting frame is provided with an oblong hole extending in the front-to-back direction and completely passing through the top plate from top to bottom, and the locking screw connecting the top plate of the mounting frame and the vertical plate of the mounting frame is embedded in the oblong hole of the top plate;

[0016] The bottom plate of the mounting frame is provided with a bottom plate oblong hole extending in the left-right direction and completely penetrating up and down, and the locking screw connecting the bottom plate of the mounting frame and the mounting base is embedded in the bottom plate oblong hole.

[0017] The zipper tape positioning assembly includes a positioning mounting frame installed on the mounting base, the positioning mounting frame is screwed with a zipper tape lower guide block arranged horizontally and transversely, the upper surface of the zipper tape lower guide block is screwed with a zipper tape upper guide block, and a zipper tape guide groove that completely penetrates the front and back is formed between the zipper tape upper guide block and the zipper tape lower guide block;

[0018] A gap sensing mechanism is installed at the lower end side of the lower guide block of the zipper belt, and the gap sensing mechanism includes a sensing movable swing rod, and a swing rod hinge seat is screwed on the lower surface of the lower guide block of the zipper belt corresponding to the sensing movable swing rod, and the middle part of the sensing movable swing rod is hinged to the swing rod hinge seat through a pivot; a gap sensing block arranged vertically is screwed on the rear end of the sensing movable swing rod, and a lower guide block avoidance groove that completely penetrates from top to bottom and is connected to the zipper belt guide groove is opened at the rear end of the lower guide block of the zipper belt, and the upper end of the gap sensing block extends into the lower guide block avoidance groove; a swing rod driving spring that pushes the front end of the sensing movable swing rod downward is installed between the front end of the sensing movable swing rod and the lower guide block of the zipper belt, and a position sensing sensor for detecting the position of the front end of the sensing movable swing rod is installed on the positioning mounting frame;

[0019] A zipper belt positioning mechanism is installed on the upper end side of the guide block on the zipper belt, and the zipper belt positioning mechanism includes a left pressure strip and a right pressure strip arranged at intervals on the left and right, a slider guide groove is formed between the left pressure strip and the right pressure strip, and a movable slider is embedded in the slider guide groove; the front end of the movable slider is hinged with a movable swing arm through a pivot, and the movable swing arm is screwed with a zipper belt hook; the movable slider is equipped with a swing arm driving cylinder corresponding to the movable swing arm, and the extended end of the piston rod of the swing arm driving cylinder is drivingly connected to the movable swing arm; a stopper is screwed on the rear end of the movable slider, and a return spring for pushing the stopper forward is respectively installed between the stopper and the left pressure strip and between the stopper and the right pressure strip.

[0020] The frame is equipped with an automatic water-drawing outlet mechanism, which includes a water-drawing outlet driving cylinder installed on the frame, a water-drawing outlet movable frame is installed at the outer extension end of the piston rod of the water-drawing outlet driving cylinder, and the water-drawing outlet movable frame is equipped with a water-drawing outlet air claw;

[0021] The frame is screwed with a linear guide rail corresponding to the water inlet movable frame, and the water inlet movable frame is screwed with a linear slider. The linear guide rail and the linear slider cooperate to form a guide auxiliary structure.

[0022] Wherein, the lower mold core protrudes from the upper end portion of the lower mold base, and the lower mold core is screwed and fastened to the upper end portion of the lower mold base by a locking screw.

[0023] Wherein, the frame is equipped with a lifting drive assembly corresponding to the mounting base, and the lifting drive assembly is drivingly connected to the mounting base;

[0024] The lifting drive assembly includes a lifting drive fixing frame screwed on the frame, a lifting drive motor is screwed on the lower end of the lifting drive fixing frame, and a lifting drive screw rod arranged vertically is connected to the power output shaft of the lifting drive motor;

[0025] The lifting drive assembly also includes a lifting drive movable frame, the upper end of the lifting drive movable frame is connected to the mounting base, the lower end of the lifting drive movable frame is screwed with a lifting drive nut, and the lifting drive lead screw cooperates with the lifting drive nut.

[0026] The beneficial effects of the present invention are as follows: the positioning injection molding structure of a zipper tape in a block and latch injection molding device of the present invention comprises a frame, the frame is equipped with a zipper tape positioning assembly arranged in sequence from front to back along the conveying direction of the zipper tape, an injection molding mold, the injection molding mold comprises an injection molding upper mold fastened to the frame, and an injection molding lower mold located at the lower end side of the injection molding upper mold, the frame is equipped with a mounting base below the injection molding lower mold, the injection molding lower mold is installed on the mounting base, and two left and right facing and spaced apart are installed between the zipper tape positioning assembly and the injection molding mold. The zipper tape grabbing assembly; the lower mold for injection molding includes a lower mold base, a lower mold core, a front side core pulling assembly, and a rear side core pulling assembly. The lower mold core is installed at the upper end of the lower mold base and the upper surface of the lower mold core is formed with a square forming groove opening upward; the front side core pulling assembly includes a front side forming insert and a front side driving mechanism for driving the front side forming insert to move forward and backward, and the rear side core pulling assembly includes a rear side forming insert and a rear side driving mechanism for driving the rear side forming insert to move forward and backward; when the injection molding mold is closed for injection molding, the front side forming insert and the rear side forming insert are respectively extended into the square forming groove. Through the above structural design, the present invention has the advantages of novel design, compact structure, and accurate and stable positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 It is a schematic diagram of the structure of the block and latch injection molding equipment.

[0029] Figure 2 It is a schematic diagram of the structure of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the injection molding mold of the present invention.

[0031] Figure 4 It is a cross-sectional schematic diagram of the lower mold for injection molding of the present invention.

[0032] Figure 5 It is an exploded schematic diagram of the core pulling assembly of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the zipper tape grabbing assembly of the present invention.

[0034] Figure 7 It is a structural schematic diagram of the zipper tape grabbing assembly of the present invention from another perspective.

[0035] Figure 8 It is a cross-sectional schematic diagram of the zipper tape grabbing assembly of the present invention.

[0036] Fig. 9It is a structural schematic diagram of the zipper tape positioning assembly of the present invention.

[0037] Fig.10 It is a structural schematic diagram of the zipper tape positioning assembly of the present invention from another perspective.

[0038] Fig.11 This is a structural schematic diagram of the zipper tape positioning assembly of the present invention from another viewing angle.

[0039] Fig.12 It is a structural schematic diagram of the automatic water outlet mechanism of the present invention.

[0040] exist Figures 1 to 12 Included are:

[0041] 1——Frame 2——Zipper tape positioning assembly

[0042] 21——Positioning mounting frame 221——Zipper belt lower guide block

[0043] 2211——Lower guide block avoidance groove 222——Zipper belt upper guide block

[0044] 223——Zipper tape guide groove 23——Gap sensing mechanism

[0045] 231——Inductive movable swing rod 232——Swing rod hinge seat

[0046] 233——Gap sensing block 24——Zipper tape positioning mechanism

[0047] 2411——Left side pressure strip 2412——Right side pressure strip

[0048] 2413——slider guide groove 242——movable slider

[0049] 243——Moving swing arm 244——Zipper hook

[0050] 245——Swing arm drive cylinder 246——Block

[0051] 3——Injection molding mold 31——Injection molding upper mold

[0052] 32——Injection molding lower mold 321——Lower mold base

[0053] 322——lower mold core 3221——square forming groove

[0054] 3222——Front guide hole 3223——Rear guide hole

[0055] 323——Front side core pulling assembly 3231——Front side forming insert

[0056] 3232——Front cylinder seat 3233——Front drive cylinder

[0057] 3234——Front drive rod 3235——Front guide rod

[0058] 324——Rear side core pulling assembly 3241——Rear side forming insert

[0059] 3242——Rear cylinder seat 3243——Rear drive cylinder

[0060] 3244——Rear drive rod 3245——Rear guide rod

[0061] 41——Mounting base 42——Lifting drive assembly

[0062] 421——Lifting drive fixing frame 422——Lifting drive motor

[0063] 423——Lifting drive screw 424——Lifting drive movable frame

[0064] 425 - Lifting drive nut 5 - Zipper tape grab assembly

[0065] 51——Grab the mounting frame 511——Mounting frame bottom plate

[0066] 5111——Oval hole on the bottom plate 512——Top plate of the mounting frame

[0067] 5121——Offset drive slot 5122——Top plate oblong hole

[0068] 513——Mounting frame vertical plate 52——Push drive cylinder

[0069] 53——Pushing movable seat 531——Moveable seat guide hole

[0070] 532——movable seat accommodating cavity 54——air claw mounting block

[0071] 55——Zipper tape clamping claw 56——Offset drive

[0072] 6——Automatic water outlet mechanism 61——Water outlet drive cylinder

[0073] 62——Water outlet movable frame 63——Water outlet air claw

[0074] 64——Linear guide 65——Linear slider. DETAILED DESCRIPTION

[0075] The present invention is described below in conjunction with specific implementation methods.

[0076] like Figure 1 and Figure 2 As shown, a positioning injection molding structure of a zipper tape in a block and latch injection molding device includes a frame 1, the frame 1 is equipped with a zipper tape positioning component 2 and an injection molding mold 3 arranged in sequence from front to back along the zipper tape conveying direction, the injection molding mold 3 includes an injection molding upper mold 31 fixedly mounted on the frame 1, and an injection molding lower mold 32 located at the lower end side of the injection molding upper mold 31, the frame 1 is equipped with a mounting base 41 below the injection molding lower mold 32, the injection molding lower mold 32 is mounted on the mounting base 41, and two zipper tape grabbing components 5 that are opposite to each other and arranged at intervals are mounted between the zipper tape positioning component 2 and the injection molding mold 3.

[0077] Further, such as Figure 3 and Figure 4 As shown, the injection molding lower mold 32 includes a lower mold base 321, a lower mold core 322, a front core pulling assembly 323, and a rear core pulling assembly 324. The lower mold core 322 is installed on the upper end of the lower mold base 321, and the upper surface of the lower mold core 322 is formed with a square molding groove 3221 opening upward; the front core pulling assembly 323 includes a front molding insert 3231 and a front driving mechanism for driving the front molding insert 3231 to move forward and backward, and the rear core pulling assembly 324 includes a rear molding insert 3241 and a rear driving mechanism for driving the rear molding insert 3241 to move forward and backward; when the injection molding mold 3 is closed for injection, the front molding insert 3231 and the rear molding insert 3241 are respectively extended into the square molding groove 3221.

[0078] Specifically, Figures 3 to 5 As shown, the front driving mechanism includes a front cylinder seat 3232 screwed on the front end of the lower die base 321, a front driving cylinder 3233 that moves horizontally forward and backward is screwed on the front cylinder seat 3232, a front driving rod 3234 group is installed on the outer extension end of the piston rod of the front driving cylinder 3233, and a front molding insert 3231 is installed on the front driving rod 3234 group. Similarly, the rear driving mechanism includes a rear cylinder seat 3242 screwed on the rear end of the lower die base 321, a rear driving cylinder 3243 that moves horizontally forward and backward is screwed on the rear cylinder seat 3242, a rear driving rod 3244 group is installed on the outer extension end of the piston rod of the rear driving cylinder 3243, and a rear molding insert 3241 is installed on the rear driving rod 3244 group.

[0079] In addition, the mounting base 41 of the present invention can be lifted and lowered relative to the frame 1, specifically: Figure 1 and Figure 2As shown, the frame 1 is provided with a lifting drive assembly 42 corresponding to the mounting base 41, and the lifting drive assembly 42 is connected to the mounting base 41 by driving; the lifting drive assembly 42 includes a lifting drive fixing frame 421 screwed on the frame 1, and a lifting drive motor 422 is screwed on the lower end of the lifting drive fixing frame 421, and a lifting drive screw 423 arranged vertically is connected to the power output shaft of the lifting drive motor 422; the lifting drive assembly 42 also includes a lifting drive movable frame 424, and the upper end of the lifting drive movable frame 424 is connected to the mounting base 41, and a lifting drive nut 425 is screwed on the lower end of the lifting drive movable frame 424, and the lifting drive screw 423 cooperates with the lifting drive nut 425. In the process of the lifting drive assembly 42 driving the mounting base 41 to lift and lower, the lifting drive motor 422 drives the lifting drive movable frame 424 to move up and down through the screw transmission mechanism composed of the lifting drive screw 423 and the lifting drive nut 425, and the lifting drive movable frame 424 moving up and down drives the mounting base 41 to move up and down synchronously. Of course, the structural design of the lifting drive assembly 42 does not constitute a limitation to the present invention, that is, the mounting base 41 of the present invention can also be driven by other lifting drive methods.

[0080] In the process of block and latch injection molding of zipper tape blocks and latches, the zipper tape feeder continuously feeds out the zipper tape, and the zipper tape fed out by the zipper tape feeder moves from front to back under the traction of the zipper tape traction device, and the zipper tape passes through the zipper tape positioning component 2 and the injection molding mold 3 in sequence. In the process of block and latch injection molding, the zipper tape positioning component 2 first positions the zipper tape; after the zipper tape is positioned by the zipper tape positioning component 2, the zipper tape grabbing component 5 on the left grabs the left chain tape, and the zipper tape grabbing component 5 on the right grabs the right chain tape, and the two zipper tape grabbing components 5 move synchronously and transfer the zipper tape to the injection molding mold 3 position; after the zipper tape grabbing component 5 grabs and transfers the zipper tape to the position of the injection molding mold 3, the lifting drive component 42 drives the mounting base 41 and the injection molding lower mold 32 to move upward and make the injection molding The mold 3 is closed, during which the front driving mechanism drives the front molding insert 3231 to move backward and the rear driving mechanism drives the rear molding insert 3241 to move forward, so that the front molding insert 3231 and the rear molding insert 3241 are respectively extended into the block molding groove 3221; after the injection molding is completed, the injection molding mold 3 performs a mold opening action, the lifting drive assembly 42 drives the mounting base 41 and the injection molding lower mold 32 to move downward, and the zipper tape moves under the traction of the zipper tape traction device and repeats the above actions.

[0081] It should be pointed out that, for the injection molding lower mold 32 of the present invention, the front core pulling assembly 323 and the rear core pulling assembly 324 respectively adopt a forward and backward moving core pulling method, that is, the front driving mechanism of the front core pulling assembly 323 drives the front molding insert 3231 to move forward and backward, and the rear driving mechanism of the rear core pulling assembly 324 drives the rear core pulling insert to move forward and backward; for the injection molding mold 3, in the process of injection molding the blocks and pins of the zipper tape, the block molding groove 3221 and the pin molding groove of the injection molding lower mold 32 are a left and right spaced arrangement structure, and the use of the front and rear core pulling structure can effectively reduce the spacing between the block molding groove 3221 and the pin molding groove, thereby making the entire injection molding mold 3 more compact.

[0082] It should be further pointed out that, preferably, the lower mold core 322 protrudes from the upper end of the lower mold base 321, and the lower mold core 322 is screwed and fastened to the upper end of the lower mold base 321 by a locking screw. The lower mold core 322 of the present invention adopts the above-mentioned screw-connected detachable installation method, that is, the present invention can replace different lower mold cores 322 according to different blocks and disassembly size specifications to enhance the applicability of the present invention.

[0083] In summary, it can be seen that through the above structural design, the present invention has the advantages of novel design, compact structure, precise and stable positioning.

[0084] As a preferred embodiment, Figures 3 to 5 As shown, the front driving rod 3234 group includes a front driving rod 3234 and a front guide rod 3235 extending horizontally along the front-to-back direction, the front molding insert 3231 is screwed and fastened to the rear end of the front guide rod 3235, the front driving rod 3234 is fastened to the extended end of the piston rod of the front driving cylinder 3233, and the front end of the front driving rod 3234 and the front guide rod 3235 are connected by mortise and tenon; the lower mold core 322 is provided with a front guide hole 3222 corresponding to the front guide rod 3235, and the front guide rod 3235 is inserted into the front guide hole 3222 of the lower mold core 322.

[0085] Similarly, if Figures 3 to 5 As shown, the rear driving rod 3244 group includes a rear driving rod 3244 and a rear guide rod 3245 extending horizontally along the front-to-back direction, the rear molding insert 3241 is screwed and fastened to the front end of the rear guide rod 3245, the rear driving rod 3244 is fastened to the extended end of the piston rod of the rear driving cylinder 3243, and the rear end of the rear driving rod 3244 and the rear guide rod 3245 are mortise and tenon connected; the lower mold core 322 is provided with a rear guide hole 3223 corresponding to the rear guide rod 3245, and the rear guide rod 3245 is inserted into the rear guide hole 3223 of the lower mold core 322.

[0086] In the process of the front driving cylinder 3233 driving the front molding insert 3231 to move forward and backward through the front driving rod 3234 group, the front guide rod 3235 cooperates with the front guide hole 3222 of the lower mold core 322 and guides the front molding insert 3231 to move forward and backward. For the mortise and tenon connection mode of the front end of the front driving rod 3234 and the front guide rod 3235, it has the advantage of convenient and fast installation. Similarly, in the process of the rear driving cylinder 3243 driving the rear molding insert 3241 to move forward and backward through the rear driving rod 3244 group, the rear guide rod 3245 cooperates with the rear guide hole 3223 of the lower mold core 322 and guides the rear molding insert 3241 to move forward and backward. For the mortise and tenon connection mode of the rear end of the rear driving rod 3244 and the rear guide rod 3245, it has the advantage of convenient and fast installation.

[0087] As a preferred embodiment, Figures 6 to 8 As shown, the zipper tape grabbing assembly 5 includes a grabbing mounting frame 51, and the grabbing mounting frame 51 includes a mounting frame bottom plate 511, and a mounting frame top plate 512 located on the upper end side of the mounting frame bottom plate 511 and extending straight along the front-to-back direction. A mounting frame vertical plate 513 is installed between the mounting frame bottom plate 511 and the mounting frame top plate 512. The upper end and the lower end of the mounting frame vertical plate 513 are respectively screwed to the mounting frame bottom plate 511 and the mounting frame top plate 512 on the corresponding sides through locking screws, and the mounting frame bottom plate 511 is screwed to the mounting base 41 through locking screws.

[0088] Among them, the mounting frame vertical plate 513 is screwed with a push-driving cylinder 52 that moves horizontally front and back, and the outer extension end of the piston rod of the push-driving cylinder 52 is equipped with a push-moving seat 53, and the push-moving seat 53 is provided with a movable seat guide hole 531 that completely penetrates front and back, and the mounting frame top plate 512 is inserted into the movable seat guide hole 531 of the push-moving seat 53; the push-moving seat 53 is provided with a movable seat accommodating cavity 532 located below the movable seat guide hole 531, and an air claw mounting block 54 is embedded in the movable seat accommodating cavity 532 so as to be relatively movable left and right, and the air claw mounting block 54 is equipped with a zipper tape clamping air claw 55; the air claw mounting block 54 is equipped with an offset driving member 56, and the mounting frame top plate 512 is provided with an offset driving groove 5121 opening downward corresponding to the offset driving member 56, and the offset driving member 56 is inserted in the offset driving groove 5121.

[0089] During the process of the zipper tape grabbing assembly 5 realizing the chain tape grabbing and transfer, the zipper tape clamping claw 55 clamps the chain tape on the corresponding side; after the zipper tape clamping claw 55 clamps the chain tape on the corresponding side, the push drive cylinder 52 is actuated and the push drive cylinder 52 pushes the push movable seat 53 to move toward the injection molding mold 3 side. Since the offset driving member 56 of the claw mounting block 54 is inserted into the offset driving groove 5121 of the mounting frame top plate 512, when the push movable seat 53 is driven by the push drive cylinder 52 and moves toward the injection molding mold 3 side, the offset driving groove 5121 guides the offset driving member 56 to deflect inwardly, and the inwardly deflected offset driving member 56 drives the claw mounting frame to move inwardly relative to the push movable seat 53, thereby causing the zipper tape clamping claw 55 and the clamped chain tape to deflect inwardly.

[0090] Furthermore, the top plate 512 of the mounting frame is provided with an oblong hole 5122 extending along the front-to-back direction and completely penetrating from top to bottom, and the locking screw connecting the top plate 512 of the mounting frame and the vertical plate 513 of the mounting frame is embedded in the oblong hole 5122 of the top plate; the bottom plate 511 of the mounting frame is provided with an oblong hole 5111 of the bottom plate extending along the left-to-right direction and completely penetrating from top to bottom, and the locking screw connecting the bottom plate 511 of the mounting frame and the mounting base 41 is embedded in the oblong hole 5111 of the bottom plate.

[0091] During the operation of the present invention, the front and rear positions of the top plate 512 of the mounting frame can be adjusted by cooperating between the oblong holes 5122 of the top plate and the corresponding locking screws, and the left and right positions of the entire grabbing mounting frame 51 can be adjusted by cooperating between the oblong holes 5111 of the bottom plate and the corresponding locking screws. That is, the present invention can realize the front and rear and left and right position adjustment of the zipper tape clamping claw 55, so as to accurately position the zipper tape during injection molding of the block and the latch.

[0092] As a preferred embodiment, Figures 9 to 11 As shown, the zipper tape positioning assembly 2 includes a positioning mounting frame 21 mounted on a mounting base 41, the positioning mounting frame 21 is screwed with a zipper tape lower guide block 221 arranged horizontally and laterally, the upper surface of the zipper tape lower guide block 221 is screwed with a zipper tape upper guide block 222, and a zipper tape guide groove 223 that completely penetrates the front and back is formed between the zipper tape upper guide block 222 and the zipper tape lower guide block 221.

[0093] The lower end side of the zipper tape lower guide block 221 is provided with a gap sensing mechanism 23, and the gap sensing mechanism 23 includes a sensing movable swing rod 231. A swing rod hinge seat 232 is screwed on the lower surface of the zipper tape lower guide block 221 corresponding to the sensing movable swing rod 231, and the middle part of the sensing movable swing rod 231 is hinged to the swing rod hinge seat 232 through a pivot; a gap sensing block 233 arranged vertically is screwed on the rear end of the sensing movable swing rod 231, and the zipper tape lower guide block 221 is screwed on the lower surface of the zipper tape lower guide block 221. A lower guide block avoidance groove 2211 is provided at the rear end portion thereof, which completely penetrates from top to bottom and is connected to the zipper tape guide groove 223; the upper end portion of the gap sensing block 233 extends into the lower guide block avoidance groove 2211; a swing rod driving spring is installed between the front end portion of the sensing movable swing rod 231 and the zipper tape lower guide block 221 to push the front end portion of the sensing movable swing rod 231 downward; the positioning mounting frame 21 is installed with a position sensing sensor for detecting the position of the front end portion of the sensing movable swing rod 231.

[0094] In addition, a zipper tape positioning mechanism 24 is installed on the upper end side of the zipper tape upper guide block 222, and the zipper tape positioning mechanism 24 includes a left side pressure strip 2411 and a right side pressure strip 2412 arranged at intervals on the left and right, a slider guide groove 2413 is formed between the left side pressure strip 2411 and the right side pressure strip 2412, and a movable slider 242 is embedded in the slider guide groove 2413; the front end of the movable slider 242 is hinged with a movable swing arm 243 through a pivot hinge, and the movable swing arm 243 is screwed with a zipper tape hook 244; the movable slider 242 is equipped with a swing arm driving cylinder 245 corresponding to the movable swing arm 243, and the extended end of the piston rod of the swing arm driving cylinder 245 is drivingly connected to the movable swing arm 243; the rear end of the movable slider 242 is screwed with a stopper 246, and a return spring for pushing the stopper 246 forward is respectively installed between the stopper 246 and the left side pressure strip 2411 and between the stopper 246 and the right side pressure strip 2412.

[0095] In the process of the zipper tape positioning assembly 2 of the present invention realizing the zipper tape positioning, the zipper tape passes through the zipper tape guide groove 223 between the zipper tape upper guide block 222 and the zipper tape lower guide block 221 from front to back. Since the swing rod driving spring keeps pushing the front end of the sensing movable swing rod 231 downward, in the process of the zipper tape traction assembly driving the zipper tape to move from front to back, the rear end of the sensing movable swing rod 231 tilts upward and the gap sensing block 233 keeps in contact with the zipper tape. When the gap position of the zipper tape moves to the position of the gap sensing block 233, the gap position of the zipper tape creates a clearance for the gap sensing block 233. At this time, the gap sensing block 233 is inserted into the gap of the zipper tape and the rear end of the sensing movable swing rod 231 further tilts upward. In this process, the swing rod driving spring drives the front end of the sensing movable swing rod 231 to swing downward, and the position sensing sensor senses the sensing movable swing rod 2 The position of the front end portion 31 changes, that is, the position sensing sensor feeds back the signal to the controller, and the controller controls the swing arm driving cylinder 245 to move. The swing arm driving cylinder 245 drives the front end portion of the zipper tape hook 244 to swing downward through the movable swing arm 243, and makes the zipper tape hook 244 press and contact the zipper tape; as the zipper tape traction device pulls the zipper tape to continue to move, the gap sensing block 233 will retreat from the gap of the zipper tape, and when the gap position of the zipper tape moves to the position of the zipper tape hook 244, the zipper tape hook 244 is inserted into the gap of the zipper tape; as the zipper tape traction device pulls the zipper tape to continue to move, the zipper tape will pull the zipper tape hook 244, the movable swing arm 243, and the movable slider 242 to move synchronously, and when the stop block 246 touches the corresponding travel switch or approaches the corresponding displacement sensor, the controller controls the zipper tape traction device to stop moving, thereby realizing the positioning of the zipper tape.

[0096] When the zipper tape positioning assembly 2 completes the zipper tape positioning and the zipper tape is grabbed and removed by the zipper tape grabbing assembly 5, the controller controls the swing arm driving cylinder 245 to move and make the zipper tape hook 244 swing upward. At this time, the zipper tape hook 244 will be separated from the zipper tape. Since the pulling effect of the zipper tape on the zipper tape hook 244 is eliminated, the return spring drives the stop block 246 to move forward and makes the movable slider 242 reset horizontally to the initial position.

[0097] As a preferred embodiment, Figure 1 and Fig.12 As shown, the frame 1 is equipped with an automatic water pulling outlet mechanism 6, which includes a water pulling outlet driving cylinder 61 installed on the frame 1, a water pulling outlet movable frame 62 is installed at the extended end of the piston rod of the water pulling outlet driving cylinder 61, and the water pulling outlet movable frame 62 is equipped with a water pulling outlet air claw 63.

[0098] Among them, in order to ensure that the water outlet movable frame 62 moves smoothly and reliably, the present invention adopts the following guide structure design, specifically: the frame 1 is screwed with a linear guide rail 64 corresponding to the water outlet movable frame 62, and the water outlet movable frame 62 is screwed with a linear slider 65, and the linear guide rail 64 cooperates with the linear slider 65 to form a guide sub-structure.

[0099] After the injection molding mold 3 completes the mold opening action, the zipper tape pulling device pulls the zipper tape backwards. During this process, the sprue material generated during the injection molding process remains on the zipper tape and moves backwards synchronously with the zipper tape. When the sprue material moves to the position of the automatic sprue pulling mechanism 6, the sprue pulling drive cylinder 61 is actuated and causes the sprue pulling air claw 63 to move to the sprue material position, and then the sprue pulling air claw 63 clamps the sprue material. Finally, the sprue pulling drive cylinder 61 is reset and causes the sprue pulling air claw 63 to pull the sprue material out of the zipper tape to complete the sprue pulling action.

[0100] 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 positioning injection molding structure for a zipper tape in a block and latch injection molding device, characterized in that: The invention comprises a frame (1), the frame (1) being provided with a zipper tape positioning assembly (2) and an injection molding mold (3) arranged in sequence from front to back along the conveying direction of the zipper tape, the injection molding mold (3) comprising an injection molding upper mold (31) fixedly mounted on the frame (1), and an injection molding lower mold (32) located at the lower end side of the injection molding upper mold (31), the frame (1) being provided with a mounting base (41) below the injection molding lower mold (32), the injection molding lower mold (32) being mounted on the mounting base (41), and two zipper tape grabbing assemblies (5) being arranged opposite to each other and spaced apart from each other on the left and right sides, being mounted between the zipper tape positioning assembly (2) and the injection molding mold (3); The lower mold (32) for injection molding comprises a lower mold base (321), a lower mold core (322), a front core pulling assembly (323), and a rear core pulling assembly (324); the lower mold core (322) is mounted on the upper end of the lower mold base (321), and the upper surface of the lower mold core (322) is formed with a square molding groove (3221) opening upward; the front core pulling assembly (323) comprises a front molding insert (3231) and a front driving mechanism for driving the front molding insert (3231) to move forward and backward; the rear core pulling assembly (324) comprises a rear molding insert (3241) and a rear driving mechanism for driving the rear molding insert (3241) to move forward and backward; when the injection molding mold (3) is closed for injection molding, the front molding insert (3231) and the rear molding insert (3241) respectively extend into the square molding groove (3221); The front driving mechanism comprises a front cylinder seat (3232) screwed on the front end of the lower die seat (321), a front driving cylinder (3233) for horizontal forward and backward movement screwed on the front cylinder seat (3232), a front driving rod group installed at the outer extension end of the piston rod of the front driving cylinder (3233), and the front molding insert (3231) is installed on the front driving rod group; The rear driving mechanism comprises a rear cylinder seat (3242) screwed on the rear end of the lower die seat (321), a rear driving cylinder (3243) which moves horizontally forward and backward is screwed on the rear cylinder seat (3242), a rear driving rod group is installed at the outer extension end of the piston rod of the rear driving cylinder (3243), and the rear molding insert (3241) is installed on the rear driving rod group; The front driving rod assembly comprises a front driving rod (3234) and a front guiding rod (3235) extending horizontally along the front-to-back direction; the front molding insert (3231) is screwed and fastened to the rear end of the front guiding rod (3235); the front driving rod (3234) is fastened and installed to the extended end of the piston rod of the front driving cylinder (3233); the front ends of the front driving rod (3234) and the front guiding rod (3235) are mortise and tenon connected; the lower mold core (322) is provided with a front guiding hole (3222) corresponding to the front guiding rod (3235); the front guiding rod (3235) is inserted into the front guiding hole (3222) of the lower mold core (322); The rear driving rod group comprises a rear driving rod (3244) and a rear guiding rod (3245) extending horizontally along the front-to-back direction; the rear molding insert (3241) is screwed and fastened to the front end of the rear guiding rod (3245); the rear driving rod (3244) is fastened and installed to the extended end of the piston rod of the rear driving cylinder (3243); the rear end of the rear driving rod (3244) and the rear guiding rod (3245) are mortise and tenon connected; the lower mold core (322) is provided with a rear guiding hole (3223) corresponding to the rear guiding rod (3245); the rear guiding rod (3245) is inserted into the rear guiding hole (3223) of the lower mold core (322); The frame (1) is provided with an automatic water outlet mechanism (6), which includes a water outlet driving cylinder (61) installed on the frame (1), a water outlet movable frame (62) is installed on the outer extension end of the piston rod of the water outlet driving cylinder (61), and the water outlet movable frame (62) is provided with a water outlet air claw (63); a linear guide rail (64) is screwed onto the frame (1) corresponding to the water outlet movable frame (62), and a linear slider (65) is screwed onto the water outlet movable frame (62), and the linear guide rail (64) and the linear slider (65) cooperate with each other to form a guide auxiliary structure; During operation, after the injection molding mold (3) completes the mold opening action, the zipper belt pulling device pulls the zipper belt to move backwards, and the sprue material generated during the injection molding process is retained on the zipper belt and moves backwards synchronously with the zipper belt. When the sprue material moves to the position of the automatic sprue pulling mechanism (6), the sprue pulling drive cylinder (61) is actuated and causes the sprue pulling air claw (63) to move to the sprue material position, and then the sprue pulling air claw (63) clamps the sprue material. Finally, the sprue pulling drive cylinder (61) is reset and causes the sprue pulling air claw (63) to pull the sprue material out of the zipper belt to complete the sprue pulling action. The lower mold core (322) protrudes from the upper end of the lower mold base (321), and the lower mold core (322) is screwed and fastened to the upper end of the lower mold base (321) by means of a locking screw.

2. A positioning injection molding structure for a zipper tape in a block and latch injection molding device according to claim 1, characterized in that: The zipper tape grabbing assembly (5) comprises a grabbing mounting frame (51), the grabbing mounting frame (51) comprises a mounting frame bottom plate (511), a mounting frame top plate (512) located on the upper end side of the mounting frame bottom plate (511) and extending in a straight line along the front-back direction, a mounting frame vertical plate (513) is arranged between the mounting frame bottom plate (511) and the mounting frame top plate (512), the upper end and the lower end of the mounting frame vertical plate (513) are respectively screwed to the mounting frame bottom plate (511) and the mounting frame top plate (512) on the corresponding side by means of locking screws, and the mounting frame bottom plate (511) is screwed to the mounting base (41) by means of locking screws; The mounting frame vertical plate (513) is screwed with a push-driving cylinder (52) that moves horizontally forward and backward. The outer extension end of the piston rod of the push-driving cylinder (52) is equipped with a push-moving seat (53). The push-moving seat (53) is provided with a movable seat guide hole (531) that completely penetrates forward and backward. The mounting frame top plate (512) is inserted into the movable seat guide hole (531) of the push-moving seat (53). The push-moving seat (53) is provided with a movable seat guide hole (531) located below the movable seat guide hole (531). A movable seat accommodating cavity (532) is provided in which an air gripper mounting block (54) is movably mounted to the movable seat accommodating cavity (532) to move relatively leftward and rightward, and the air gripper mounting block (54) is provided with an air gripper (55) for clamping a zipper belt; the air gripper mounting block (54) is provided with an offset driving member (56), and a downwardly opening offset driving groove (5121) is provided on the top plate (512) of the mounting frame corresponding to the offset driving member (56), and the offset driving member (56) is inserted into the offset driving groove (5121).

3. A positioning injection molding structure for a zipper tape in a block and latch injection molding device according to claim 2, characterized in that: The mounting frame top plate (512) is provided with a top plate oblong hole (5122) extending in the front-to-back direction and completely penetrating from top to bottom, and a locking screw connecting the mounting frame top plate (512) and the mounting frame vertical plate (513) is embedded in the top plate oblong hole (5122); The mounting frame bottom plate (511) is provided with a bottom plate oblong hole (5111) extending in the left-right direction and completely penetrating from top to bottom, and a locking screw connecting the mounting frame bottom plate (511) and the mounting base (41) is embedded in the bottom plate oblong hole (5111).

4. A positioning injection molding structure for a zipper tape in a block and latch injection molding device according to claim 1, characterized in that: The zipper tape positioning assembly (2) comprises a positioning mounting frame (21) mounted on the mounting base (41), the positioning mounting frame (21) being screwed with a zipper tape lower guide block (221) arranged horizontally and transversely, the upper surface of the zipper tape lower guide block (221) being screwed with a zipper tape upper guide block (222), and a zipper tape guide groove (223) completely penetrating the front and back is formed between the zipper tape upper guide block (222) and the zipper tape lower guide block (221); A gap sensing mechanism (23) is installed at the lower end side of the zipper tape lower guide block (221), and the gap sensing mechanism (23) includes a sensing movable swing rod (231). A swing rod hinge seat (232) is screwed on the lower surface of the zipper tape lower guide block (221) corresponding to the sensing movable swing rod (231), and the middle part of the sensing movable swing rod (231) is hinged to the swing rod hinge seat (232) through a pivot; a gap sensing block (233) arranged vertically is screwed on the rear end of the sensing movable swing rod (231), and the zipper tape lower guide block (221) is screwed on the lower surface of the zipper tape lower guide block (221). ) is provided at the rear end of the zipper tape guide groove (223) with a lower guide block avoidance groove (2211) which completely penetrates the lower guide block and communicates with the zipper tape guide groove (223); the upper end of the gap sensing block (233) extends into the lower guide block avoidance groove (2211); a swing rod driving spring for pushing the front end of the sensing movable swing rod (231) downward is installed between the front end of the sensing movable swing rod (231) and the zipper tape lower guide block (221); and a position sensing sensor for detecting the position of the front end of the sensing movable swing rod (231) is installed on the positioning mounting frame (21); A zipper belt positioning mechanism (24) is installed on the upper end side of the zipper belt upper guide block (222), and the zipper belt positioning mechanism (24) includes a left side pressure strip (2411) and a right side pressure strip (2412) arranged at intervals on the left and right sides, a slider guide groove (2413) is formed between the left side pressure strip (2411) and the right side pressure strip (2412), and a movable slider (242) is embedded in the slider guide groove (2413); a movable swing arm (243) is installed at the front end of the movable slider (242) through a pivot hinge, and the movable swing arm (243) is installed at the front end of the movable slider (242). 43) is screwed with a zipper hook (244); the movable slider (242) is equipped with a swing arm driving cylinder (245) corresponding to the movable swing arm (243), and the extended end of the piston rod of the swing arm driving cylinder (245) is drivingly connected to the movable swing arm (243); a stopper (246) is screwed on the rear end of the movable slider (242), and a return spring for pushing the stopper (246) forward is respectively installed between the stopper (246) and the left pressure strip (2411) and between the stopper (246) and the right pressure strip (2412).

5. A positioning injection molding structure for a zipper tape in a block and latch injection molding device according to any one of claims 1 to 4, characterized in that: The frame (1) is provided with a lifting drive assembly (42) corresponding to the mounting base (41), and the lifting drive assembly (42) is drivingly connected to the mounting base (41); The lifting drive assembly (42) comprises a lifting drive fixing frame (421) screwed onto the frame (1); a lifting drive motor (422) is screwed onto the lower end of the lifting drive fixing frame (421); and a power output shaft of the lifting drive motor (422) is connected to a lifting drive screw rod (423) arranged vertically. The lifting drive assembly (42) further comprises a lifting drive movable frame (424), the upper end of the lifting drive movable frame (424) is connected to the mounting base (41), the lower end of the lifting drive movable frame (424) is screwed with a lifting drive nut (425), and the lifting drive screw rod (423) cooperates with the lifting drive nut (425).

Images