A zipper pull tail injection production equipment

Abstract

A zipper head pull-tab tail injection production equipment includes a frame and an injection molding machine head, a glue injection lower mold, an axial moving mechanism, a zipper head feeding device and a glue injection zipper head demoulding device arranged on the frame. The glue injection lower mold is arranged below the injection molding machine head. A plurality of core molds are symmetrically arranged on both sides of the axial direction of the glue injection lower mold. The axial moving mechanism is connected to the glue injection lower mold to drive the glue injection lower mold to move along the axial direction. A zipper head feeding device is symmetrically arranged on both sides of the axial direction of the glue injection lower mold. The glue injection zipper head demoulding device is also arranged at the end of the axial direction of the glue injection lower mold. The pull-tab tail injection production equipment of the present invention enables the pull-tab tail injection process of the entire zipper head to be completed mechanized and automatically, greatly improves production efficiency, and has a low failure rate, saves a lot of manpower and material resources, and is suitable for mass production of glue injection zipper heads.

Description

Technical Field

[0001] The invention relates to the field of zipper manufacturing equipment, and more specifically to a pull-tab tail injection production equipment for a zipper head. Background Art

[0002] The zipper head mainly includes a slider body and a pull tab, wherein the slider body includes an upper wing, a lower wing and a chain column, the upper wing and the lower wing are connected by the chain column to form a Y-shaped channel for the chain teeth to pass through, and a connection hole is provided at the bottom of the pull tab to match and connect to the top of the upper wing. At present, many zipper head manufacturers have injected rubber or silicone at the tail end of the pull tab, which can increase the friction between the pull tab and the consumer, making it easier for the consumer to pull and close; on the other hand, it can be customized according to consumer needs to improve the aesthetics of the zipper head.

[0003] The traditional production process of this type of glue injection zipper head is as follows: first, the zipper heads to be injected are placed one by one in the mold core of the injection mold; then the injection mold is pushed to the bottom of the injection molding machine head for injection. After injection molding, the entire piece of injection zipper head includes a central glue stick and a number of injection zipper heads symmetrically and evenly bonded to one side or both sides of the central glue stick; then the injection mold is pulled out after the injection, and the entire piece of injection zipper head is demolded manually. When demolding, the injection zipper heads need to be separated from the mold core of the injection mold one by one; finally, each injection zipper head is separated from the central glue stick by manual shearing. This kind of pull tail injection production mainly based on manual labor not only has a large workload, but also has extremely low efficiency, and it is difficult to meet the needs of mass production of injection pull heads. Summary of the invention

[0004] The invention provides a pull-tab tail injection production device for a zipper head, so as to solve the shortcomings of the existing manual feeding and manual demoulding, which has a large workload, extremely low efficiency, and is difficult to meet the needs of mass production of glue-injected pull heads.

[0005] The present invention adopts the following technical solution:

[0006] A zipper head pull-tab injection tail production equipment, including a frame and an injection molding machine head, a glue injection lower mold, an axial moving mechanism, a zipper head feeding device and a glue injection zipper head demoulding device arranged on the frame, the glue injection lower mold is arranged below the injection molding machine head, and the glue injection lower mold is symmetrically provided with a plurality of pull-tab glue injection grooves on both sides of the axial direction of the glue injection lower mold, and the outer side of each pull-tab glue injection groove is respectively provided with a pull-tab positioning groove for placing the pull-tab horizontally with one end of the chain column facing outward, and each pull-tab positioning groove is provided with a notch on the outer side of one end of the pull-tab chain column, and the axial moving mechanism is connected to the glue injection lower mold to drive the glue injection lower mold to move along the axial direction; a zipper head feeding device is symmetrically provided on both sides of the axial direction of the glue injection lower mold, and the end of the glue injection lower mold is also provided with an injection The demoulding device of the glue zipper head comprises a knife plate, a pneumatic clamping claw that clamps the knife plate to insert or leave the tooth chain channels on both sides of the glue injection zipper head chain column, a pressure plate mechanism that presses on the top surface of the glue injection zipper head away from the chain column, a longitudinal movement mechanism that drives the knife plate to rise and fall in the longitudinal direction, and a radial movement mechanism that drives the knife plate and the pressure plate to move in the radial direction. A knife plate is provided beside the multiple slider positioning grooves on each side, and each of the knife plates is provided with a plurality of knives that are compatible with the tooth chain channels of the glue injection zipper head at intervals, and each of the knife plates is correspondingly provided with a pneumatic clamping claw, and the pressure plate mechanism comprises a pressure plate provided beside the knife plate, and a plurality of pressure blocks are provided on the bottom surface of the pressure plate that are correspondingly pressed on the top surface of the glue injection zipper head away from the chain column.

[0007] Specifically, the radial movement mechanism includes a radial movement track, a radial movement slider and a radial movement drive cylinder. The radial movement track is vertically arranged above the blade plate, the radial movement slider is cooperated with the radial movement track, and the radial movement drive cylinder is connected to the radial movement slider. The longitudinal movement mechanism includes two longitudinal movement drive cylinders, which are arranged below the radial movement track and fixedly connected to the radial movement track.

[0008] Furthermore, two pneumatic clamps are provided on the side of each inserting blade plate, the cylinder bodies of the two pneumatic clamps are respectively fixed on the side walls of the radially movable slider, and the clamping arm inside each pneumatic clamp is fixedly connected to the inserting blade side wall.

[0009] Furthermore, a supporting block is provided above each inserting knife and elastically presses against the top surface of the glue-injected zipper head. A plurality of mounting grooves are provided at the bottom of the pressure plate. A spring is installed in each mounting groove. The lower end of the spring is connected to the supporting block, and the supporting block protrudes from the bottom surface of the pressure plate.

[0010] Furthermore, each of the zipper head feeding devices includes a zipper head feeding track, a zipper head supporting platform, an elastic material blocking mechanism, a zipper head clamping mechanism and a radial pushing mechanism. The zipper head feeding track is inclined, and the zipper head supporting platform is supported by the inclined end of the zipper head feeding track. A zipper head guide groove is provided on the top surface of the zipper head supporting platform, and the two side walls of the zipper head guide groove are symmetrically provided with an elastic material blocking mechanism supported on the side of the front end of the slider, and a zipper head clamping mechanism for clamping the zipper head from both sides of the wing plate on the zipper head is provided above the zipper head guide groove corresponding to the elastic material blocking mechanism, and the radial pushing mechanism is connected to the zipper head clamping mechanism to drive the zipper head clamping mechanism to clamp the zipper head and move it to the core mold of the glue injection lower mold.

[0011] Furthermore, the radial pushing mechanism includes a radial pushing track, a radial pushing slider and a radial pushing cylinder. The radial pushing track is fixed on a bracket arranged beside the zipper head unloading track. The radial pushing track is parallel to the central axis of the zipper head guide groove. The radial pushing slider can be slidably arranged on the radial pushing track. The radial pushing cylinder is fixed to the rear end of the radial pushing track and is connected to the radial pushing slider.

[0012] Furthermore, the zipper head clamping mechanism is a pneumatic clamping jaw, and the pneumatic clamping jaw is fixedly connected to the radially movable slider via a connecting plate.

[0013] Furthermore, each of the elastic material blocking mechanisms includes a material blocking plate, a compression spring and a connecting screw. The zipper head supporting platform is provided with a material blocking plate slide groove which is vertically connected to the zipper head guide groove. The material blocking plate can be slidably arranged on the material blocking plate slide groove. One end of the material blocking plate protrudes from the side wall of the zipper head guide groove, and the other end is provided with a downwardly extending connecting portion. The connecting portion is provided with a screw connecting hole which is connected to the side wall of the zipper head supporting platform. The connecting screw passes through the screw connecting hole and is spirally connected to the side wall of the zipper head supporting platform, and the compression spring is sleeved on the connecting screw outside the screw connecting hole.

[0014] Furthermore, a glue-injected zipper head cutting device is provided on the side of the glue-injected zipper head demoulding device, and the glue-injected zipper head cutting device includes a bracket for placing a whole piece of glue-injected zipper head, a manipulator for clamping the whole piece of glue-injected zipper head, a power drive mechanism for pulling the manipulator to move along the center line direction of the central glue stick of the whole piece of glue-injected zipper head, and a cutting mechanism for cutting the glue-injected zipper head from the central glue stick, the manipulator is clamped on the central glue stick of the whole piece of glue-injected zipper head, the power drive mechanism is connected to the manipulator, and the cutting mechanism is arranged on the side of the manipulator, the manipulator clamps the glue-injected zipper heads one by one to the cutting mechanism in turn, and the glue tail end of the glue-injected zipper head is in contact with the vertical plane where the cutting line of the cutting mechanism is located.

[0015] Specifically, the robot includes a pair of clamping rods and a pneumatic clamp that drives the clamping rods to open or close, and the two clamping arms of the pneumatic clamp are respectively connected to a corresponding clamping rod; the cutting mechanism includes an upper cutter, a lower cutter and a driving cylinder, and a lower cutter is fixed in parallel on both sides of the clamping rod, and an upper cutter is provided directly above each lower cutter. The driving cylinder is connected to the upper cutter, and the driving cylinder drives the upper cutter to move downward and cooperate with the lower cutter to cut off the glue-injected zipper head from the central glue stick.

[0016] Furthermore, an upper guide plate and a lower guide plate are respectively provided in front of each of the upper cutter and the lower cutter, the front end portions of the upper guide plate and the lower guide plate are inclined inward, and the rear end portions are respectively aligned and connected with the upper cutter and the lower cutter, and the distance between the rear end portions of the two upper guide plates or the lower guide plates is greater than the distance between the ends of the two glue-injected zipper head glue tails opposite to each other on both sides of the central glue stick.

[0017] From the above description of the structure of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages:

[0018] 1. The pull-tab tail injection production equipment of the invention first feeds the pull tabs one by one into the core mold of the glue injection lower mold by the zipper head feeding devices on both sides, and then pushes the glue injection lower mold to the bottom of the injection molding machine for pull-tab tail injection molding. Finally, the glue injection zipper head demoulding device demoulds the entire glue injection zipper head after the tail injection molding. The pull-tab tail injection process of the entire zipper head is completed mechanized and automatically, the production efficiency is greatly improved, and the failure rate is low, which saves a lot of manpower and material resources, and is suitable for the mass production of glue injection zipper heads.

[0019] 2. The demoulding device of the invention is composed of a knife and a pressure plate to clamp the injection zipper head together, ensuring that all injection zipper heads can move upward synchronously to separate from the injection mold under the upward driving force of the longitudinal moving mechanism, and successfully complete the demoulding action; then, under the action of the radial moving mechanism, it moves to the side of the injection mold, and the clamping arm of the pneumatic clamp retracts, so that the injection zipper head falls off after demoulding. The demoulding device of this structure is simple and convenient to demould, and the demoulding efficiency is greatly improved.

[0020] 3. The demoulding device of the invention has a pressing block that presses and holds the top surface of the end of the glue-injected zipper head away from the chain-dividing column, thereby increasing the force-bearing area of ​​the slider body of the glue-injected zipper head and preventing the slider body of the glue-injected zipper head from flipping over due to the force concentrated on the side close to the chain-dividing column when moving upward, resulting in demoulding failure.

[0021] 4. The demoulding device of the invention is also provided with a supporting block above each insert knife, which is elastically supported on the top surface of the glue-injected zipper head, so that each insert knife can act closely on the inner top wall of the tooth chain channel of the glue-injected zipper head, ensuring the synchronization of demoulding of all insert knives and preventing demoulding failure caused by the presence of a gap between individual insert knives and the inner top wall of the tooth chain channel of the glue-injected zipper head.

[0022] 5. The automatic feeding device of the invention has elastic material-blocking mechanisms symmetrically arranged on both sides of the zipper head guide groove of the zipper head supporting platform. The two elastic material-blocking mechanisms not only play the role of dividing the materials, but also play the role of correcting and guiding the zipper head, preventing the zipper head from deviating and affecting the clamping of the zipper head clamping mechanism, thereby ensuring the accuracy of the zipper head clamping and feeding.

[0023] 6. The automatic cutting device of the invention comprises a bracket, a manipulator, a power drive mechanism and a cutting mechanism. The whole piece of glue-injected zipper head after demoulding is placed on the bracket, and then the manipulator clamps the whole piece of glue-injected zipper head and moves it along the center line direction of the central glue stick, and transports the connecting part between the glue tail end of each glue-injected zipper head and the central glue stick to the cutting mechanism one by one, and finally the cutting mechanism cuts it off from the joint surface between the glue tail end and the connecting part.

[0024] 7. The automatic cutting device of the invention has an upper guide piece and a lower guide piece respectively arranged in front of the upper cutter and the lower cutter, the front ends of the upper guide piece and the lower guide piece are inclined inward, and the rear ends are aligned with the upper cutter and the lower cutter respectively, and the distance between the rear ends of the two upper guide pieces or the lower guide pieces is greater than the distance between the ends of the glue tails of the two opposite glue injection zipper heads on both sides of the central glue stick. Since the distance between the upper guide pieces (lower guide pieces) at both ends increases from front to back, while the distance between the ends of the glue tails of the glue injection zipper heads on both sides of the central glue stick remains unchanged, when the glue injection zipper head moves backward to between the upper cutter and the lower cutter, the glue injection zipper heads on both sides of the central glue stick are stretched outward, so that the connection part is in a stretched state. Therefore, the ends of the glue tails of the glue injection zipper head will not leave burrs when cutting, thereby ensuring the cutting quality of the glue injection zipper head. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a top view of the glue injection lower mold of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the zipper head loading device of the present invention.

[0028] Figure 4 for Figure 3 The exploded diagram of the connecting screw and the compression spring is omitted.

[0029] Figure 5 It is a top view of the zipper head bearing platform and the elastic material blocking mechanism of the present invention.

[0030] Figure 6 It is the front view of the zipper head bearing platform and the elastic material stop mechanism.

[0031] Figure 7 It is a schematic structural diagram of the demoulding device of the glue-injected zipper head of the present invention.

[0032] Figure 8 for Figure 7 main view.

[0033] Fig. 9 It is a structural schematic diagram of the blade inserting plate of the present invention.

[0034] Fig.10 It is a structural schematic diagram of the pressing plate mechanism of the present invention.

[0035] Fig.11 It is an exploded schematic diagram of the pressing plate mechanism of the present invention.

[0036] Fig.12 It is a top view of the whole glue-injected zipper head after the glue injection molding of the present invention.

[0037] Fig.13 It is a schematic structural diagram of the glue-injected zipper slider cutting device of the present invention.

[0038] Fig.14 The present invention is a front view of a cutting device for a glue-injected zipper slider, partially showing the cutting mechanism.

[0039] Fig.15 It is an exploded schematic diagram of the cutting mechanism of the present invention.

[0040] Fig.16 This is a top view of the end of the glue tail of the glue-injected zipper slider of the present invention entering the front end of the upper guide piece.

[0041] Fig.17 This is a top view of the glue-injected zipper slider of the present invention entering the upper cutter. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] A zipper pull tail injection production equipment, refer to Figure 1 , including a frame 1 and an injection molding head (not shown in the figure) arranged on the frame 1, a glue injection lower mold 2, an axial moving mechanism, a zipper head loading device 10 and a glue injection zipper head demoulding device 20, the glue injection upper mold is fixed on the glue injection head and is symmetrical with the glue injection lower mold 2, the glue injection lower mold 2 is arranged below the injection molding head, the axial moving mechanism includes an axial screw 101, an axial screw slider 102 and an axial screw motor 103, the power output end of the axial screw motor 103 is connected to the axial screw 101, the axial screw slider 102 is arranged on the axial screw 101, the glue injection lower mold 2 is fixed on the top surface of the axial screw slider 102, and moves axially with the axial screw slider 102.

[0044] Reference Figure 2 A plurality of pull-tab glue injection grooves 41 are symmetrically arranged on both sides of the lower glue injection mold 2 in the axial direction, and a pull-tab positioning groove 42 is correspondingly arranged on the outer side of each pull-tab glue injection groove 41 so that the pull-tab is placed horizontally and one end of the chain column faces outward, and each pull-tab positioning groove 42 is provided with a notch 420 on the outer side of one end of the pull-tab chain column. A zipper head feeding device 10 is symmetrically arranged on both sides of the lower glue injection mold 2 in the axial direction.

[0045] The zipper head loading device 10, referring to Figure 3 and Figure 4, including a zipper head feeding track 110, a zipper head supporting platform 120, an elastic material blocking mechanism 130, a zipper head clamping mechanism 140 and a radial pushing mechanism 150. The zipper head feeding track 110 is tilted, and the zipper head supporting platform 120 is connected to the inclined end of the zipper head feeding track 100. A zipper head guide groove 1200 is opened on the top surface of the zipper head supporting platform 120, and the two side walls of the zipper head guide groove 1200 are symmetrically provided with an elastic material blocking mechanism 130 supported on the side of the front end of the slider. A zipper head clamping mechanism 140 is provided above the zipper head guide groove 1200 corresponding to the elastic material blocking mechanism 130, which clamps the zipper head from both sides of the wing plate on the zipper head. The radial pushing mechanism 150 is connected to the zipper head clamping mechanism 140 to drive the zipper head clamping mechanism 140 to clamp the zipper head and move it to the corresponding slider positioning groove 42.

[0046] Reference Figure 4 The width of the zipper head guide groove 1200 is slightly larger than the maximum width of the lower wing of the zipper head, and the top surfaces of the two side walls of the zipper head guide groove 1200 are lower than the top surface of the upper wing of the zipper head, so that the upper wing of the zipper head has sufficient longitudinal height for the zipper head clamping mechanism 140 to clamp.

[0047] Reference Figure 4 The radial pushing mechanism 150 includes a radial pushing track 151, a radial pushing slider 152 and a radial pushing cylinder 153. The radial pushing track 151 is fixed on a bracket 11 arranged beside the zipper head unloading track 110. The radial pushing track 151 is parallel to the central axis of the zipper head guide groove 1200. The radial pushing slider 152 can be slidably arranged on the radial pushing track 151. The radial pushing cylinder 153 is fixed to the rear end of the radial pushing track 151 and is connected to the radial pushing slider 152.

[0048] Reference Figure 3 or Figure 4 The zipper head clamping mechanism 140 is a pneumatic clamping jaw, which is fixedly connected to the radial pushing slider 152 through a connecting plate.

[0049] Reference Figures 4 to 6Each of the elastic material-blocking mechanisms 130 includes a material-blocking plate 131, a compression spring 132 and a connecting screw 133. The zipper head supporting platform 120 is provided with a material-blocking plate slide groove (not shown in the figure because a material-blocking plate is installed) that is vertically connected to the zipper head guide groove 1200. The material-blocking plate 131 can be slidably arranged on the material-blocking plate slide groove. One end of the material-blocking plate 131 protrudes from the side wall of the zipper head guide groove 1200, and the other end is provided with a downwardly extending connecting portion 1311. The connecting portion 1311 is provided with a screw connecting hole 1312 that is connected to the side wall of the zipper head supporting platform. The connecting screw 133 passes through the screw connecting hole 1312 and is spirally connected to the side wall of the zipper head supporting platform 120. The compression spring 132 is sleeved on the connecting screw 133 outside the screw connecting hole 1312. An arc-shaped guide portion is provided at one end of the baffle plate 131 protruding from the side wall of the zipper head guide groove 1200, and the curvature of the arc-shaped guide portion is adapted to the curvature of the side wall of the lower wing of the zipper head to reduce the resistance between the zipper head and the baffle plate when the zipper head is clamped by the clamping mechanism and moved.

[0050] The working process of the zipper head feeding device of the present invention is as follows: the zipper head slides from the zipper head feeding track 110 to the zipper head bearing platform 120, and the two sides of the front end of the slider body are blocked by the elastic material blocking mechanism 130, and then clamped by the zipper head clamping mechanism 140, and finally the radial pushing mechanism 150 pushes the zipper head clamping mechanism 140 to overcome the elastic force of the elastic material blocking mechanism, and pushes it to the corresponding slider positioning groove 42, and the zipper head clamping mechanism 140 is released to complete the zipper head feeding. When the zipper head is finished loading, the slider is positioned in the slider positioning groove 42, and the pull tab falls into the pull tab glue injection groove 41, and the top surface of the pull tab is tightly attached to the top surface of the wing tab on the slider.

[0051] Reference Figure 1 , detector 1 3 and detector 2 4 are respectively provided on both sides of the front end of each of the above-mentioned pull head loading devices, wherein detector 1 is used to detect in real time whether the zipper head on the injection lower mold is loaded in place, and detector 2 is used to detect whether there is any injection zipper head left on the injection lower mold core mold to be loaded.

[0052] Reference Figure 1 The end of the above-mentioned lower injection mold 2 in the axial direction is also provided with a zipper head demoulding device 20 for injection, referring to Figure 7 and Figure 8 The glue injection zipper head demoulding device 20 includes a knife plate 210, a pneumatic clamp 220, a pressure plate mechanism 230, a longitudinal moving mechanism and a radial moving mechanism. A knife plate 210 is provided on both sides of the glue injection lower mold 2. Fig. 9, a plurality of knives 211 adapted to the tooth chain channel of the glue injection zipper head are arranged at intervals on the inner side of the knife plate 210 in the axial direction, and the knives 211 are in a U-shaped structure. Two pneumatic clamps 220 are arranged on the side of each knife plate 210, and a receiving plate 212 is fixedly connected to the top surface of the knife plate 210. The clamp arm inside each pneumatic clamp 220 is fixedly connected to the side wall of the knife plate 210 through the receiving plate 212 to drive all the knives 211 on the knife plate 210 to simultaneously insert or leave the tooth chain channels on both sides of the glue injection zipper head chain column. The pressing plate mechanism 230 includes a pressing plate 231 arranged beside the knife plate 210, and a plurality of pressing blocks 232 corresponding to the top surface of the glue injection zipper head away from the chain column are arranged on the bottom surface of the pressing plate 231, and each knife 211 is also provided with a top holding block 233 elastically pressing on the top surface of the glue injection zipper head.

[0053] Reference Figure 7 and Figure 8 The radial moving mechanism is used to drive the inserting blade plate 210 and the pressure plate 231 to move in the radial direction. The radial moving mechanism includes a radial moving track 241, a radial moving slider 242 and a radial moving drive cylinder 243. The radial moving track 241 is vertically arranged above the inserting blade plate 210, the radial moving slider 242 is cooperated with the radial moving track 241, and the radial moving drive cylinder 243 is connected to the radial moving slider 242.

[0054] Reference Figure 7 and Figure 8 The above-mentioned longitudinal moving mechanism is used to drive the blade inserting plate 210 to rise and fall in the longitudinal direction. The longitudinal moving mechanism includes two longitudinal moving driving cylinders 251. The two longitudinal moving driving cylinders 251 are arranged below the radial moving track 241 and are fixedly connected to the radial moving track 241. The cylinder bodies of the two pneumatic clamps 220 on the side wall of each blade inserting plate 210 are fixed on the side wall of the radial moving slider 242, and the pressure plate 231 is connected to the cylinder body of the pneumatic clamps 220.

[0055] Reference Fig.10 and Fig.11 The bottom of the pressing plate 231 is provided with a plurality of mounting grooves 2330 , each of which is provided with a spring 2331 , and the lower end of the spring 2331 is connected with a supporting block 2332 , which protrudes from the bottom surface of the pressing plate 231 .

[0056] Reference Figure 8A connecting seat 221 is fixed on the cylinder of each pneumatic clamp 220, and a guide column 222 is provided on each connecting seat 221. The top of the pressing plate 231 is fixedly connected to two connecting columns 234, and a vertical screw 235 is provided on the top of each connecting column. Each connecting column 234 is correspondingly arranged in the guide column 222, and its vertical screw 235 passes through the upper end of the guide column 222. A compression spring 236 is also sleeved on the vertical screw 235 passing through the guide column 222, and an adjusting nut 237 is also provided at the end of the vertical screw 235. By rotating the adjusting nut 237, the height of the pressing plate 231 can be adjusted to meet the needs of different zipper head thicknesses.

[0057] The demoulding device of the present invention has the following specific working process: the pneumatic clamping jaws are actuated to drive the inserting knife plates on both sides to move inwards, so that the inserting knives are respectively inserted into the tooth chain channels at one end of the glue injection zipper head chain column, and at the same time, the pressing plate on the pressing plate mechanism is pressed on the top surface of the upper wing piece of the glue injection zipper head away from the chain column, and the supporting block is elastically supported on the middle front top surface of the wing piece of the glue injection zipper head (when the supporting block is provided); then the longitudinal moving mechanism is actuated to move the pneumatic clamping jaws upwards, and the inserting knife plate, the pressing plate mechanism and the supporting block (when the supporting block is provided) act on the glue injection zipper head at the same time, and jointly clamp the entire glue injection zipper head to lift it upward synchronously to separate from the glue injection lower mold; then the radial moving mechanism is actuated to move the pneumatic clamping jaws, the inserting knife plate, etc. to the side material collection place; finally, the pneumatic clamping jaws are reset, and the entire glue injection zipper head falls to the material collection place due to loss of support, and the radial moving mechanism and the longitudinal moving mechanism return to their positions in sequence to complete the entire demoulding process.

[0058] Reference Figure 1 The side of the above-mentioned glue injection zipper head demoulding device 20 is also provided with a glue injection zipper head cutting device 30, referring to Fig.13 and Fig.14 The glue injection zipper head cutting device comprises a bracket 310, a manipulator 320, a power drive mechanism 330 and a cutting mechanism 340. The bracket 310 is arranged below the end of the radial moving track, and is used to receive the glue injection zipper head after demoulding. The manipulator 20 is clamped on the central glue stick A of the whole glue injection zipper head. The power drive mechanism 30 is connected to the manipulator 320, and is used to pull the manipulator 320 to move along the center line direction of the central glue stick A of the whole glue injection zipper head. The cutting mechanism 340 is arranged on the side of the manipulator 320, and is used to cut the glue injection zipper head B from the central glue stick A. The manipulator 320 clamps the glue injection zipper heads one by one to the cutting mechanism 340 in turn, and the glue tail end of the glue injection zipper head is in contact with the vertical surface where the cutting line of the cutting mechanism 340 is located.

[0059] Reference Fig.13 and Fig.14The manipulator 320 includes a pair of clamping rods 321 and a pneumatic clamping jaw 322 for driving the clamping rods to open or close. The two clamping arms of the pneumatic clamping jaw 22 are respectively connected to a clamping rod 321.

[0060] Reference Fig.13 and Fig.14 The power drive mechanism 330 includes a stepper screw motor 331, a screw 332 and a screw slider 333. The stepper screw motor 331 is connected to the screw 332. The screw 332 is parallel to the center line of the center glue stick of the entire glue-injected zipper head. The screw slider 333 is connected to the screw 332. The cylinder body of the pneumatic clamp 322 is fixed on the screw slider 333.

[0061] Reference Fig.13 and Fig.15 The cutting mechanism 340 includes an upper cutter 341, a lower cutter 342 and a drive cylinder 343. A lower cutter 342 is fixed in parallel on both sides of the clamp rod 321. An upper cutter 341 is arranged directly above each lower cutter 342. The drive cylinder 343 is fixed above the upper cutter 341 through a support frame 344. The free end of the drive cylinder 343 is connected to an n-shaped connecting plate 3431. A guide block 3441 is fixed on the upper part of the support frame 344. The two legs of the n-shaped connecting plate 3431 pass through the guide block 3441, and the bottom ends thereof are fixedly connected to an upper cutter 341. The drive cylinder 343 drives the upper cutter 341 to move downward to cooperate with the lower cutter 342 to cut off the glue injection zipper head from the central glue stick.

[0062] Continue to refer to Fig.13 and Fig.15 When the upper cutter 341 is in the initial state, that is, when the drive cylinder 343 is not in motion, the distance between each upper cutter 341 and its corresponding lower cutter 342 is greater than the thickness of the connection portion C between the end of the glue tail of the glue injection zipper head B and the central glue stick A, but less than the thickness of the glue injection pull tab. An upper guide piece 345 and a lower guide piece 346 are respectively provided in front of each upper cutter 341 and lower cutter 342. The bottom surface of the upper guide piece 345 is in the same horizontal plane as the bottom surface of the upper cutter 341 in the initial state, and the top surface of the lower guide piece 346 is in the same horizontal plane as the top surface of the upper cutter 341. Fig.16 and Fig.17The gap between the upper guide piece 345 and the lower guide piece 346 forms a front guide groove, and the gap between the upper cutter 341 and the lower cutter 342 forms a rear guide groove. The front ends of the upper guide piece 345 and the lower guide piece 346 are inclined inward, and the rear ends are aligned with the upper cutter 341 and the lower cutter 342, respectively. Since the distance between the two upper guide pieces 345 (or lower guide pieces 346) increases from front to back, and the spacing a between the rear ends of the two upper guide pieces 345 or the lower guide pieces 346 is greater than the distance b between the ends of the glue tails of the two opposite glue-injected zipper heads on both sides of the central glue stick, and the distances between the ends of the glue tails of the glue-injected zipper heads on both sides of the central glue stick are the same, when the glue-injected zipper head at the front end of the upper guide piece 345 moves to the rear end of the upper guide piece 345, the connection between the ends of the glue tails of the two glue-injected zipper heads and the central glue stick is elongated and in a stretched state, and since the ends of the upper guide piece 345 and the lower guide piece 346 are aligned with the upper cutter 341 and the lower cutter 342 respectively, when the glue-injected zipper head moves forward to between the upper cutter 341 and the lower cutter 342, the connection is still in a stretched state, so that no burrs are left at the ends of the glue tails during cutting, thereby ensuring the cutting quality of the glue-injected zipper head.

[0063] Reference Fig.13 A material discharge port 351 is provided below the cutting mechanism 340 , and a material blocking plate 352 is provided at the rear side of the cutting mechanism 340 to block the cut glue injection pulling head from falling into the material discharge port 351 .

[0064] The glue-injected zipper head cutting device of the present invention first places the whole glue-injected zipper head after demoulding on a bracket when working, and then the whole glue-injected zipper head is clamped by a robot and moved along the center line direction of the central glue stick, and the connection part between the glue tail end of each glue-injected zipper head and the central glue stick is transported to the cutting mechanism one by one, and finally the cutting mechanism cuts off the joint surface between the glue tail end and the connection part.

[0065] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A zipper pull tab tail injection production equipment, characterized in that: The machine comprises a frame and an injection molding machine head, a glue injection lower mold, an axial moving mechanism, a zipper head feeding device and a glue injection zipper head demoulding device arranged on the frame, the glue injection lower mold is arranged below the injection molding machine head, and a plurality of pull-tab glue injection grooves are symmetrically arranged on both sides of the axial direction of the glue injection lower mold, and a pull-tab positioning groove is correspondingly arranged on the outer side of each pull-tab glue injection groove so that the pull-tab is placed horizontally and one end of the chain column faces outward, and each pull-tab positioning groove is provided with a notch on the outer side of one end of the pull-tab chain column, and the axial moving mechanism is connected to the glue injection lower mold to drive the glue injection lower mold to move along the axial direction; a zipper head feeding device is symmetrically arranged on both sides of the axial direction of the glue injection lower mold, and a glue injection zipper head demoulding device is also arranged at the axial end of the glue injection lower mold. The demoulding device of the glue-injected zipper head includes a knife plate, a pneumatic clamp that clamps the knife plate to insert or leave the tooth chain channels on both sides of the glue-injected zipper head chain column, a pressure plate mechanism that presses on the top surface of the glue-injected zipper head away from the chain column, a longitudinal movement mechanism that drives the knife plate to rise and fall in the longitudinal direction, and a radial movement mechanism that drives the knife plate and the pressure plate to move in the radial direction. A knife plate is provided next to the multiple slider positioning grooves on each side, and each of the knife plates is provided with a plurality of knives that are compatible with the tooth chain channels of the glue-injected zipper head at intervals, and each of the knife plates is correspondingly provided with a pneumatic clamp, and the pressure plate mechanism includes a pressure plate provided next to the knife plate, and a plurality of pressure blocks are provided on the bottom surface of the pressure plate that are correspondingly pressed on the top surface of the glue-injected zipper head away from the chain column.

2. The zipper pull tab tail injection production equipment according to claim 1, characterized in that: The radial movement mechanism includes a radial movement track, a radial movement slider and a radial movement drive cylinder. The radial movement track is vertically arranged above the blade plate. The radial movement slider is cooperated with the radial movement track. The radial movement drive cylinder is connected to the radial movement slider. The longitudinal movement mechanism includes two longitudinal movement drive cylinders. The two longitudinal movement drive cylinders are arranged below the radial movement track and fixedly connected to the radial movement track.

3. The zipper pull tab tail injection production equipment according to claim 2, characterized in that: Two pneumatic clamps are provided on the side of each inserting blade plate, the cylinder bodies of the two pneumatic clamps are respectively fixed on the side walls of the radially movable slider, and the clamping arm inside each pneumatic clamp is fixedly connected to the inserting blade side wall.

4. The zipper pull tab tail injection production equipment according to claim 1, characterized in that: Each zipper head feeding device includes a zipper head feeding track, a zipper head supporting platform, an elastic material blocking mechanism, a zipper head clamping mechanism and a radial pushing mechanism. The zipper head feeding track is inclined, and the zipper head supporting platform is supported by the inclined end of the zipper head feeding track. A zipper head guide groove is provided on the top surface of the zipper head supporting platform, and the two side walls of the zipper head guide groove are symmetrically provided with an elastic material blocking mechanism supported on the side of the front end of the slider. A zipper head clamping mechanism for clamping the zipper head from both sides of the wing plate on the zipper head is provided above the zipper head guide groove corresponding to the elastic material blocking mechanism, and the radial pushing mechanism is connected to the zipper head clamping mechanism to drive the zipper head clamping mechanism to clamp the zipper head and move it to the core mold of the glue injection lower mold.

5. The zipper pull tab tail injection production equipment according to claim 4, characterized in that: The radial pushing mechanism includes a radial pushing track, a radial pushing slider and a radial pushing cylinder. The radial pushing track is fixed on a bracket arranged beside the zipper head feeding track. The radial pushing track is parallel to the central axis of the zipper head guide groove. The radial pushing slider can be slidably arranged on the radial pushing track. The radial pushing cylinder is fixed to the rear end of the radial pushing track and is connected to the radial pushing slider.

6. The zipper pull tab tail injection production equipment according to claim 5, characterized in that: The zipper head clamping mechanism is a pneumatic clamping claw, which is fixedly connected to the radial pushing slider through a connecting plate.

7. The zipper pull tab tail injection production equipment according to claim 4, characterized in that: Each of the elastic material blocking mechanisms includes a material blocking plate, a compression spring and a connecting screw. The zipper head supporting platform is provided with a material blocking plate slide groove which is vertically connected to the zipper head guide groove. The material blocking plate can be slidably arranged on the material blocking plate slide groove. One end of the material blocking plate protrudes from the side wall of the zipper head guide groove, and the other end is provided with a downwardly extending connecting portion. The connecting portion is provided with a screw connecting hole which is connected to the side wall of the zipper head supporting platform. The connecting screw passes through the screw connecting hole and is spirally connected to the side wall of the zipper head supporting platform, and the compression spring is sleeved on the connecting screw outside the screw connecting hole.

8. The zipper pull tab tail injection production equipment according to claim 1, characterized in that: A glue-injected zipper head cutting device is also provided on the side of the glue-injected zipper head demoulding device, and the glue-injected zipper head cutting device includes a bracket for placing a whole piece of glue-injected zipper head, a manipulator for clamping the whole piece of glue-injected zipper head, a power drive mechanism for pulling the manipulator to move along the center line direction of the central glue stick of the whole piece of glue-injected zipper head, and a cutting mechanism for cutting the glue-injected zipper head from the central glue stick, the manipulator is clamped on the central glue stick of the whole piece of glue-injected zipper head, the power drive mechanism is connected to the manipulator, and the cutting mechanism is arranged on the side of the manipulator, the manipulator clamps the glue-injected zipper heads one by one to the cutting mechanism in turn, and the glue tail end of the glue-injected zipper head is in contact with the vertical plane where the cutting line of the cutting mechanism is located.

9. The zipper pull tab tail injection production equipment according to claim 8, characterized in that: The manipulator includes a pair of clamping rods and a pneumatic clamping jaw that drives the clamping rods to open or close, and the two clamping arms of the pneumatic clamping jaw are respectively connected to a corresponding clamping rod; the cutting mechanism includes an upper cutter, a lower cutter and a driving cylinder, and a lower cutter is fixed in parallel on both sides of the clamping rod, and an upper cutter is provided directly above each lower cutter. The driving cylinder is connected to the upper cutter, and the driving cylinder drives the upper cutter to move downward and cooperate with the lower cutter to cut off the glue-injected zipper head from the central glue stick.

10. The zipper pull tab tail injection production equipment according to claim 9, characterized in that: An upper guide plate and a lower guide plate are respectively provided in front of each of the upper cutter and the lower cutter, the front ends of the upper guide plate and the lower guide plate are inclined inward, and the rear ends are aligned with the upper cutter and the lower cutter respectively, and the distance between the rear ends of the two upper guide plates or the lower guide plates is greater than the distance between the ends of the two glue tails of the glue-injected zipper heads opposite to each other on both sides of the central glue stick.

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