Zipper double head tape applicator

Abstract

The present application relates to a kind of zipper double-head pasting machine, including machine table, and be located on the machine table: chain guide mechanism;Glue feeding mechanism, the glue feeding mechanism is used to be transported to the sizing hole on zipper tape;Welding mechanism, the welding mechanism is used to be pasted on the end of sizing hole on zipper tape;Positioning mechanism, the positioning mechanism includes detection unit, first positioning unit, second positioning unit and pullback unit, the welding machine mechanism is located between the first positioning unit and second positioning unit, the detection unit is used to detect the sizing hole on zipper tape, the first positioning unit is used to position the left end of sizing hole, the second positioning unit is used to position the right end of sizing hole, the pullback unit is used to drive zipper tape so that it can move reversely.The present application can realize the double-head pasting of zipper tape, so as to effectively improve the pasting efficiency of double-head zipper tape, reduce enterprise production cost.

Description

Technical Field

[0001] This invention relates to the field of zipper production equipment, and in particular to a double-head zipper applicator. Background Technology

[0002] A tape applicator is a piece of equipment used in zipper processing. Its function is to feed two layers of adhesive tape to both sides of the zipper and then bond the tape to the zipper tape using an ultrasonic welding device. It is mainly used for processing semi-finished zipper tapes with toothless locating holes. The tape needs to be applied to these locating holes near the teeth. Existing tape applicators are only suitable for single-head zippers and can only position the tape on the left side of the locating hole. Therefore, when applying tape to double-headed zippers, it is necessary to apply it to one end and then reverse the process to apply it to the other end, resulting in low processing efficiency, increased costs, and hindering mass production. Summary of the Invention

[0003] In view of this, in order to solve the above-mentioned technical problems, the present invention provides a zipper double-end adhesive applicator that can quickly apply adhesive to both ends of a zipper.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A double-headed zipper applicator includes a machine base and the following components mounted on the machine base: a chain guide mechanism, comprising a chain guide unit and a traction unit, wherein the chain guide unit is used to transport the zipper tape, and the traction unit is used to pull the zipper tape with a dimensional hole; an adhesive feeding mechanism, comprising to deliver adhesive tape to the dimensional hole on the zipper tape; a welding mechanism, comprising to attach the adhesive tape to the end of the dimensional hole on the zipper tape; and a positioning mechanism, comprising a detection unit, a first positioning unit, a second positioning unit, and a pull-back unit, wherein the welding mechanism is located between the first and second positioning units, the detection unit is used to detect the dimensional hole on the zipper tape, the first positioning unit is used to position the left end of the dimensional hole, the second positioning unit is used to position the right end of the dimensional hole, and the pull-back unit is used to drive the zipper tape to move in the opposite direction.

[0006] The guide chain mechanism of the aforementioned applicator is used to transport the zipper tape to be adhesive-coated, allowing the zipper tape to pass sequentially through the first positioning unit, the welding unit, and the second positioning unit. After the detection unit detects the locating hole on the zipper tape, the zipper tape continues to move to the right. The first positioning unit then activates and positions the left end of the locating hole. After positioning the left end of the locating hole, the zipper tape stops moving, and the adhesive feeding mechanism and the welding mechanism work together to apply adhesive to one end of the zipper tape. Then, the second positioning unit and the pull-back unit activate. The pull-back unit pulls the zipper tape, causing it to move in the opposite direction, i.e., to the left, so that the second positioning unit can position the right end of the locating hole. After positioning the right end of the locating hole, the adhesive feeding mechanism and the welding mechanism work together to apply adhesive to the other end of the zipper tape. This reciprocating action enables double-end adhesive application of the zipper tape, effectively improving the adhesive application efficiency of double-end zipper tapes and reducing enterprise production costs.

[0007] Furthermore, the first positioning unit includes a first mounting platform, a first hook assembly, and a first pressing component. The first mounting platform is slidably disposed on the machine base. The first hook assembly is movably disposed on the first mounting platform and can be used to hook the left end of the sizing hole. The first pressing component is fixed to the first mounting platform and is used to press the zipper tape.

[0008] The first mounting platform of the first positioning unit can slide left and right relative to the machine base, that is, it is consistent with the conveying direction of the zipper belt. After the detection unit detects the dimensional hole, the first hook assembly pushes into the dimensional hole. At this time, the zipper belt continues to move to the right until the left end of the dimensional hole is stuck on the hook, thus completing the positioning. At this time, after the first pressing component presses the zipper belt, the glue feeding mechanism and the welding mechanism cooperate to achieve glue application at one end of the zipper belt.

[0009] Furthermore, the first hook assembly includes a first hook and a first drive member, the first drive member being used to drive the lifting and lowering of the first hook.

[0010] The first hook assembly described above has a simple and effective structure. The hook tip of the first hook faces upward and is connected to the output end of the first drive unit. Through the driving action of the first drive unit, the first hook can be driven to rise or fall, thereby hooking or releasing the zipper tape.

[0011] Furthermore, the pull-back unit includes a pull-back cylinder, the output end of which is detachably connected to the first mounting platform.

[0012] The aforementioned pull-back unit pulls the first mounting platform back a certain distance, allowing the zipper tape to move to the left. After the adhesive is applied to one end, the first pressing component remains pressed. The pull-back unit pulls the first mounting platform back, simultaneously causing the zipper tape to move. At this time, the pull-back unit can act as a traction mechanism for the zipper tape to move to the left, facilitating the positioning of the right side of the dimensional hole with the second positioning unit.

[0013] Furthermore, the second positioning unit includes a second mounting platform, a second hook assembly, and a second pressing component. The second mounting platform is disposed on the machine base, the second hook assembly is movably disposed on the second mounting platform and can be used to hook the right end of the sizing hole, and the second pressing component is fixed to the second mounting platform and used to press the zipper tape.

[0014] When the pull-back unit pulls the zipper tape back, the second positioning unit pushes the second hook assembly into the sizing hole. At this time, the pull-back unit pulls the zipper tape to the left until the right end of the sizing hole is stuck on the hook. This further drives the second hook to move to the left and triggers the preset limit switch and other devices to complete the positioning. After the positioning is completed, the second pressing component presses the zipper tape tightly. At this time, the first pressing component is released to prevent arching after the glue is pressed. Then, the glue feeding mechanism and the welding mechanism work together to apply glue to the other end of the zipper tape.

[0015] Furthermore, the second hook assembly includes a second hook, a second drive member, and a movable block. The second drive member is fixed to the movable block and is used to drive the lifting and lowering of the second hook. The movable block is elastically connected to the second mounting platform.

[0016] The second hook assembly is elastically connected to the second mounting platform. The second hook can slide elastically left and right along the conveying direction of the zipper belt. The purpose is to accurately position it with the first tooth near the right end of the locating hole and facilitate the return of the second hook.

[0017] Furthermore, the second positioning unit also includes a sensor and a limiting member, wherein the sensor is used to detect the state of the movable block and the limiting member is used to limit the movable block.

[0018] The purpose of setting up the aforementioned sensors and limiting components is to ensure the accuracy of the second hook position. The length of each dimensional hole on the zipper tape may be inconsistent. When the pull-back unit pulls back, the second hook hooks onto the rightmost end of the dimensional hole. Since the second hook is elastically connected to the second mounting platform, it will further drive the second hook to move to the left until the movable block and the second hook can no longer move. At this time, the sensor senses that the second hook is in the preset position and will trigger the sensor. The limiting component will press against the movable block to prevent the second hook from rebounding after the first pressing component is released, thereby ensuring the accuracy of the second hook positioning. After completing the above actions, the second pressing component presses down to fix the zipper tape, while the first pressing component is released.

[0019] Furthermore, the detection unit includes a fixed block, a detection block that is rotatably and elastically disposed on the fixed block, and a detection indicator, wherein the fixed block is fixed to the first mounting platform.

[0020] The aforementioned detection unit is used to detect the locating hole on the zipper tape. Under normal conditions, the zipper tape passes through the bottom of the detection block and lifts the detection block. When the zipper moves to the locating hole, since there are no teeth on the locating hole, the detection block will get stuck in the locating hole, that is, the detection block will move down. At this time, the detection indicator sends a signal that the locating hole has been detected, and the first positioning unit starts to operate. Therefore, the setting of the detection unit can effectively and accurately determine the position of the locating hole, ensuring that the first positioning unit and the second positioning unit can be positioned in a timely and accurate manner.

[0021] Furthermore, the glue feeding mechanism includes a glue feeding unit, a glue separating unit, and a glue cutting unit. The glue feeding unit is used to simultaneously feed two tapes. The glue separating unit is used to separate the two overlapping tapes and simultaneously feed them to both sides of the zipper tape. The glue cutting unit cuts the two tapes.

[0022] The aforementioned adhesive feeding unit conveys the two layers of adhesive tape to the top and bottom of the zipper belt respectively, and has the functions of feeding, cutting, and material loading.

[0023] Furthermore, the welding mechanism includes an ultrasonic welding head, a welding pattern mold, and a welding cylinder. The ultrasonic welding head is located below the zipper belt, the welding pattern mold is located above the zipper belt, and the welding cylinder is used to drive the movement of the welding pattern mold.

[0024] The aforementioned welding mechanism uses ultrasonic welding to weld the tape to the upper and lower surfaces of the zipper tape. The ultrasonic welding head can be fixed in place, and the welding cylinder drives the welding mold to force the zipper tape and tape to the ultrasonic welding head for welding.

[0025] The advantages of this invention compared to the prior art are:

[0026] The applicator of this invention causes the zipper tape to pass sequentially through a first positioning unit, a welding unit, and a second positioning unit. After the detection unit detects the locating hole on the zipper tape, the zipper tape continues to move to the right. The first positioning unit then activates and positions the left end of the locating hole. After positioning the left end of the locating hole, the zipper tape stops moving, and the glue feeding mechanism and welding mechanism work together to apply glue to one end of the zipper tape. Then, the second positioning unit and the pull-back unit activate. The pull-back unit pulls the zipper tape, moving it to the left, allowing the second positioning unit to position the right end of the locating hole. After positioning the right end of the locating hole, the glue feeding mechanism and welding mechanism work together to apply glue to the other end of the zipper tape. This reciprocating action enables double-end glue application of the zipper tape, effectively improving the glue application efficiency of double-end zipper tapes and reducing enterprise production costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0028] Figure 2 This is a partial structural diagram of an embodiment of the present invention.

[0029] Figure 3 for Figure 2 A structural diagram from another angle.

[0030] Figure 4 This is a schematic diagram of the detection unit, the first positioning unit, and the pull-back unit in an embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the structure of the second positioning unit in an embodiment of the present invention.

[0032] Reference numerals: 1-Machine base; 2-Chain guide mechanism; 21-Chain guide unit; 22-Traction unit; 3-Glue feeding mechanism; 31-Glue feeding unit; 32-Glue separating unit; 33-Glue cutting unit; 4-Welding unit; 41-Welding cylinder; 42-Ultrasonic welding head; 31-Welding pattern; 5-Positioning mechanism; 51-Detection unit; 511-Fixing block; 512-Detection block; 513-Detection indicator; 52-First positioning unit; 521-First mounting platform; 522-First hook assembly; 5221-First hook; 5222-First drive component; 523-First pressure band component; 53-Second positioning unit; 531-Second mounting platform; 532-Second hook assembly; 5321-Second hook; 5322-Second drive component; 5323-Moving block; 533-Second pressure band component; 534-Sensor; 535-Limiting component; 54-Pull-back unit. Detailed Implementation

[0033] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0034] Please refer to Figures 1-5 A preferred embodiment of the present invention is as follows.

[0035] Please refer to Figures 1 to 3A double-headed zipper applicator includes a machine base 1 and the following components mounted on the machine base 1: a guide chain mechanism 2, which includes a guide chain unit 21 and a traction unit 22. The guide chain unit 21 is used to transport the zipper tape, and the traction unit 22 is used to pull the zipper tape with a sizing hole; an adhesive feeding mechanism 3, which is used to feed the adhesive tape to the end of the sizing hole on the zipper tape; a welding mechanism, which is used to attach the adhesive tape to the sizing hole on the zipper tape; and a positioning mechanism 5, which includes a detection unit 51, a first positioning unit 52, a second positioning unit 53, and a pull-back unit 54. The welding mechanism is located between the first positioning unit 52 and the second positioning unit 53. The detection unit 51 is used to detect the sizing hole on the zipper tape, the first positioning unit 52 is used to position the left end of the sizing hole, the second positioning unit 53 is used to position the right end of the sizing hole, and the pull-back unit 54 is used to drive the zipper tape to move in the opposite direction. In addition, the chain guide unit 21 consists of multiple guide wheels for transmitting the zipper belt, and the traction unit 22 consists of a motor and rollers, which transmit the belt through friction between the rollers.

[0036] The guide chain mechanism 2 of the aforementioned applicator is used to transport the zipper tape to be glued, allowing the zipper tape to pass sequentially through the first positioning unit 52, the welding unit 4, and the second positioning unit 53. After the detection unit 51 detects the locating hole on the zipper tape, the zipper tape continues to move to the right. The first positioning unit 52 then activates and positions the left end of the locating hole. After positioning the left end of the locating hole, the zipper tape stops moving, and the glue feeding mechanism 3 and the welding mechanism cooperate to apply glue to one end of the zipper tape. Then, the second positioning unit 53 and the pull-back unit 54 activate. The pull-back unit 54 pulls the zipper tape, causing it to move in the opposite direction, i.e., to the left, so that the second positioning unit 53 can position the right end of the locating hole. After positioning the right end of the locating hole, the glue feeding mechanism 3 and the welding mechanism cooperate to apply glue to the other end of the zipper tape. This reciprocating action enables double-end glue application of the zipper tape, effectively improving the glue application efficiency of double-end zipper tapes and reducing enterprise production costs.

[0037] Please refer to Figure 4In this embodiment, the first positioning unit 52 includes a first mounting platform 521, a first hook assembly 522, and a first pressing member 523. The first mounting platform 521 is slidably disposed on the machine base 1. The first hook assembly 522 is movably disposed on the first mounting platform 521 and can be used to hook the left end of the sizing hole. The first pressing member 523 is fixed to the first mounting platform 521 and is used to press the zipper tape. Specifically, the first hook assembly 522 and the first pressing member 523 are located on the lower and upper sides of the first mounting platform 521, respectively. A first slide rail can be provided on the machine base 1, and the first mounting platform 521 is slidably mounted on the first slide rail, so that the first mounting platform 521 can only slide along the preset track of the first slide rail, that is, slide left and right, or slide back and forth along the conveying direction of the zipper tape. The first mounting platform 521 can be equipped with a corresponding zipper belt channel, which can be set by two stacked guide plates. A passage is set between the two guide plates for the zipper belt to pass through, thereby ensuring that the zipper belt does not deviate during the conveyor belt process, and further improving the accuracy of the subsequent dimensional hole positioning.

[0038] The first mounting platform 521 of the first positioning unit 52 can slide left and right relative to the machine base 1, that is, it is consistent with the conveying direction of the zipper belt. After the detection unit 51 detects the dimensional hole, the first hook assembly 522 pushes into the dimensional hole. At this time, the zipper belt continues to move to the right until the left end of the dimensional hole is caught on the hook, thus completing the positioning. At this time, after the first pressing component 523 presses the zipper belt, the glue feeding mechanism 3 and the welding mechanism cooperate to achieve glue application at one end of the zipper belt. It should be noted that the first pressing component 523 can be a cylinder, fixed to the top of the first mounting platform 521. Specifically, it can be fixed in reverse to the guide plate above, and the guide plate is provided with a groove for the cylinder's pressure rod to pass through. When the pressure rod on the cylinder extends, it can press the zipper belt.

[0039] In this embodiment, the first hook assembly 522 includes a first hook 5221 and a first drive member 5222, the first drive member 5222 being used to drive the first hook 5221 to rise and fall.

[0040] The aforementioned first hook assembly 522 has a simple and effective structure. The hook tip of the first hook 5221 faces upward, and the first hook 5221 is connected to the output end of the first driving member 5222. Through the driving action of the first driving member 5222, the first hook 5221 can be driven to rise or fall, thereby hooking or releasing the zipper tape. Specifically, the driving member of the first hook 5221 can be a cylinder, which is fixed on the first mounting platform 521. The output end of the cylinder is fixedly connected to the first hook 5221. The first hook 5221 is engaged in the first mounting platform 521 and can move up and down relative to the first mounting platform. The first hook 5221 has an integral bent structure with the hook tip facing upward. When the detection unit 51 detects the locating hole on the zipper tape, the cylinder lifts the first hook 5221 so that it can hook the left end of the locating hole to achieve positioning.

[0041] In this embodiment, the pull-back unit 54 includes a pull-back cylinder, the output end of which is detachably connected to the first mounting platform 521.

[0042] The aforementioned pull-back unit 54 pulls the first mounting platform 521 back a certain distance, allowing the zipper tape to move to the left. After applying adhesive to one end, the first pressing member 523 remains pressed. The pull-back unit 54 pulls the first mounting platform 521 back, simultaneously moving the zipper tape. At this time, the pull-back unit 54 acts as a traction mechanism for moving the zipper tape to the left, facilitating the positioning of the right side of the dimensional hole with the second positioning unit 53. It should be noted that the pull-back unit 54 will reset the first mounting platform 521 to a preset position each time it resets, ensuring that the position of the first hook 5221 relative to the welding mechanism and the adhesive feeding mechanism 3 remains consistent. This guarantees precise positioning for each adhesive application and welding, ensuring that the distance between the end of the zipper tape teeth and the adhesive tape remains consistent, thus meeting process requirements. Alternatively, a limiting method can be used to ensure the consistency of the first mounting platform 521's position during reset.

[0043] Please refer to Figure 5 In this embodiment, the second positioning unit 53 includes a second mounting platform 531, a second hook assembly 532, and a second pressing member 533. The second mounting platform 531 is disposed on the machine base 1. The second hook assembly 532 is movably disposed on the second mounting platform 531 and can be used to hook the right end of the sizing hole. The second pressing member 533 is fixed to the second mounting platform 531 and is used to press the zipper tape. The second mounting platform 531 can be fixed relative to the machine base 1. In addition, two guide plates can also be provided on the second mounting platform 531 to facilitate the conveying of the zipper tape. The second hook assembly 532 and the second pressing member 533 are located on the lower and upper sides of the second mounting platform 531, respectively.

[0044] When the pull-back unit 54 pulls the zipper tape back, the second positioning unit 53 pushes the second hook assembly 532 into the sizing hole. At this time, the pull-back unit 54 pulls the zipper tape to the left until the right end of the sizing hole is stuck on the hook. This further drives the second hook to move to the left and triggers the preset limit switch and other devices to complete the positioning. After the positioning is completed, the second pressing component 533 presses the zipper tape tightly. At this time, the first pressing component 523 is released to prevent arching after the glue is pressed. Then, the glue feeding mechanism 3 and the welding mechanism cooperate to achieve the glue application on the other end of the zipper tape.

[0045] In this embodiment, the second hook assembly 532 includes a second hook 5321, a second drive member 5322, and a movable block 5323. The second drive member 5322 is fixed to the movable block 5323 and is used to drive the lifting and lowering of the second hook 5321. The movable block 5323 is elastically connected to the second mounting platform 531. The form of the second hook assembly 532 is different from that of the first hook assembly 522. The second hook 5321 and the second drive member 5322 are mounted on the second mounting platform 531 through the movable block 5323, and the movable block 5323 is elastically connected to the second mounting platform 531. That is, the second hook 5321 can move relative to the second mounting platform 531, and its movement direction is up and down and left and right. It is driven to move up and down by the second drive member 5322, and it can move left and right by the elastic connection.

[0046] The second hook assembly 532 is elastically connected to the second mounting platform 531. The second hook 5321 can slide elastically left and right along the conveying direction of the zipper belt. The purpose is to accurately position it with the first tooth near the right end of the locating hole and facilitate the return of the second hook.

[0047] Furthermore, the second positioning unit 53 also includes a sensor 534 and a limiting member 535. The sensor 534 is used to detect the state of the movable block 5323, and the limiting member 535 is used to limit the movable block 5323. Specifically, both the sensor 534 and the limiting member 535 can be fixed on the second mounting platform 531. The limiting member 535 can be a cylinder, which can press against the end of the movable block 5323.

[0048] The purpose of the aforementioned sensor 534 and limiting member 535 is to ensure the accuracy of the position of the second hook 5321. The length of each sizing hole on the zipper tape may be inconsistent. When the pull-back unit 54 pulls back, the second hook 5321 hooks the rightmost end of the sizing hole. Since the second hook 5321 is elastically connected to the second mounting platform 531, it will further drive the second hook 5321 to move to the left until the movable block 5323 and the second hook 5321 can no longer move. At this time, the sensor 534 senses that the second hook 5321 is in the preset position and will trigger the sensor. The limiting member 535 will press against the movable block 5323 to prevent the second hook 5321 from rebounding after the first pressing member 523 is released, thereby ensuring the accuracy of the positioning of the second hook 5321. After completing the above actions, the second pressing member 533 presses down to fix the zipper tape, and at the same time the first pressing member 523 is released. It should be noted that when the first hook 5221 and the second hook 5321 are in the preset position, the distance between the first hook 5221 and the glue feeding mechanism 3 and the welding mechanism is the same as the distance between the second hook 5321 and the glue feeding mechanism 3 and the welding mechanism.

[0049] Please refer to Figure 4In this embodiment, the detection unit 51 includes a fixed block 511, a detection block 512 rotatably and elastically disposed on the fixed block 511, and a detection indicator 513. The fixed block 511 is fixed to the first mounting platform 521. Specifically, the detection block 512 has a two-section bent structure, which is rotatably disposed on the fixed block 511 and elastically connected to the fixed block 511.

[0050] The aforementioned detection unit 51 is used to detect the locating hole on the zipper tape. Under normal conditions, the zipper tape passes through the bottom of the detection block 512 and lifts the detection block 512. When the zipper moves to the locating hole, since there are no teeth on the locating hole, the detection block 512 will get stuck in the locating hole, that is, the detection block 512 will move down. At this time, the detection indicator 513 sends a signal that the locating hole has been detected, and the first positioning unit 52 starts to operate. Therefore, the setting of the detection unit 51 can effectively and accurately determine the position of the locating hole, ensuring that the first positioning unit 52 and the second positioning unit 53 can be positioned in a timely and accurate manner.

[0051] Please refer to Figure 3 In this embodiment, the glue feeding mechanism 3 includes a glue feeding unit 31, a glue separating unit 32, and a glue cutting unit 33. The glue feeding unit 31 is used to simultaneously feed two tapes, the glue separating unit 32 is used to separate the two overlapping tapes and simultaneously feed them to the front and back sides of the zipper tape, and the glue cutting unit 33 cuts the two tapes.

[0052] The aforementioned glue feeding unit 31 conveys two layers of adhesive tape to the top and bottom of the zipper belt respectively, and has the functions of feeding, conveying, and cutting. The glue feeding unit 31 is located between the first positioning unit 52 and the second positioning unit 53. It should be noted that the glue feeding mechanism 3 is a conventional technology in the prior art. Its function is to simultaneously convey the adhesive tape on both sides to the upper and lower surfaces of the zipper belt. Specifically, it can be fed by two feeding trays, then fed by a cylinder and a glue feeding plate, and finally separated and cut by a glue separating mold and a cutter. Its specific structure can be referred to in existing applicator machines, and will not be described in detail here.

[0053] Please refer to Figure 2In this embodiment, the welding mechanism 4 includes an ultrasonic welding head 43, a welding pattern mold 42, and a welding cylinder 41. The ultrasonic welding head 43 is located below the zipper tape, and the welding pattern mold 42 is located above the zipper tape. The welding cylinder 41 is used to drive the movement of the welding pattern mold 42. Specifically, the welding cylinder 41 is fixed on the machine base 1 and is used to drive the lifting and lowering of the welding pattern mold. During welding, the welding cylinder 41 drives the lifting and lowering of the welding pattern mold 42, so that the welding pattern mold 42 can press the zipper tape and adhesive tape tightly onto the ultrasonic welding head 43, thereby achieving welding. Of course, the ultrasonic welding head 43 can also move towards the welding pattern mold 42. Of course, as another implementation, the welding pattern mold 42 can be located below the zipper tape, and the ultrasonic welding head 43 can be located above the zipper tape, as long as the two can move towards each other. The welding mechanism 4 adopts ultrasonic welding technology, which is a conventional technology in the prior art. The specific structure can be referred to in the existing applicator machine, and will not be described in detail here.

[0054] The working principle of this embodiment is as follows: The zipper tape is pulled by the traction unit 22 and pulled out from the guide chain unit 21. It passes through the detection unit 51, the first positioning unit 52, the glue feeding mechanism 3 and the welding mechanism, and the second positioning unit 53 in sequence. During the conveying process, when the detection unit 51 detects the position of the dimensional hole on the zipper tape, the first positioning unit 52 starts to move to position it. At this time, the first driving member 5222 drives the first hook 5221 to rise, so that the first hook 5221 pushes into the dimensional hole. The traction unit 22 continues to pull the zipper tape to the right until the first hook 5221 hooks the left end of the dimensional hole, and the positioning is completed. The first pressing member 523 presses down to press the zipper tape to prevent it from moving. Then the glue feeding mechanism 3 and the welding mechanism cooperate to complete the fabric application operation on one end of the zipper. Next, the second positioning unit 53 starts to move to position it. The first pressing member 523 keeps the tape pressed and the first driving member 5222 drives the first hook 5221 to rise, so that the first hook 5221 pushes into the dimensional hole. The first driving member 5222 drives the first hook 5221 to rise, so that the first hook 5221 pushes into the dimensional hole. The traction unit 22 continues to pull the zipper tape to the right until the first hook 5221 hooks into the left end of the dimensional hole, and the positioning is completed. The first pressing member 5222 presses down to press the zipper tape to prevent it from moving. Then the glue feeding mechanism 3 and the welding mechanism cooperate to complete the fabric application operation on one end of the zipper. Next, the second positioning unit 53 starts to move to position it. The first pressing member 5222 keeps the tape pressed and the first driving member 5222 drives the first hook 5222 to 22 drives the first hook 5221 to descend away from the sizing hole, and the second drive unit 5322 drives the second hook 5321 to push into the sizing hole. The pull-back unit 54 pulls the first mounting platform 521 to move it to the left, and at the same time drives the zipper tape to move to the left until the second hook 5321 hooks the right end of the sizing hole. At this time, since the second hook 5321 is elastically connected to the second mounting platform 531, the pull-back unit 54 will further pull the zipper tape, so that it moves to the left together with the second hook 5321 until it moves to the preset position of the second hook 5321 and stops. At this time, the sensor 534 senses that the second hook 5321 is no longer moving, and the limiting member 535 acts to limit the second hook 5321 to prevent the second hook 5321 from rebounding. Then the second pressing member 533 presses the zipper tape, the first pressing member 523 releases, and the glue feeding mechanism 3 and the welding mechanism cooperate to complete the patching of the other end of the zipper, thereby realizing the rapid patching operation of both ends of the zipper.

[0055] In the description of this invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] Although the description of the invention has been given in conjunction with the specific embodiments described above, it will be apparent to those skilled in the art that many substitutions, modifications, and variations can be made based on the foregoing. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A double-head zipper applicator, characterized in that, Includes the machine base, and the components mounted on the machine base: A zipper guide mechanism, comprising a zipper guide unit and a traction unit, wherein the zipper guide unit is used to transmit the zipper tape and the traction unit is used to pull the zipper tape with a fixed-size hole; A glue feeding mechanism, which is used to feed the tape to the sizing hole on the zipper tape; A welding mechanism for attaching tape to the end of a dimensional hole on a zipper tape; The positioning mechanism includes a detection unit, a first positioning unit, a second positioning unit, and a pull-back unit. The welding mechanism is located between the first positioning unit and the second positioning unit. The detection unit is used to detect the dimensional hole on the zipper tape. The first positioning unit is used to position the left end of the dimensional hole, the second positioning unit is used to position the right end of the dimensional hole, and the pull-back unit is used to drive the zipper tape to move in the opposite direction. The first positioning unit includes a first mounting platform, a first hook assembly, and a first pressing component. The first mounting platform is slidably disposed on the machine base. The first hook assembly is movably disposed on the first mounting platform and can be used to hook the left end of the sizing hole. The first pressing component is fixed to the first mounting platform and is used to press the zipper tape. The second positioning unit includes a second mounting platform, a second hook assembly, and a second pressing component. The second mounting platform is disposed on the machine base. The second hook assembly is movably disposed on the second mounting platform and can be used to hook the right end of the dimensional hole. The second pressing component is fixed to the second mounting platform and is used to press the zipper tape. The pullback unit includes a pullback cylinder, and the output end of the pullback cylinder is detachably connected to the first mounting platform.

2. The zipper double-head applicator according to claim 1, characterized in that, The first crochet assembly includes a first crochet hook and a first drive member, the first drive member being used to drive the first crochet hook to rise and fall.

3. A double-head zipper applicator according to claim 1, characterized in that, The second hook assembly includes a second hook, a second drive member, and a movable block. The second drive member is fixed to the movable block and is used to drive the lifting and lowering of the second hook. The movable block is elastically connected to the second mounting platform.

4. A double-head zipper applicator according to claim 3, characterized in that, The second positioning unit further includes a sensor and a limiting member. The sensor is used to detect the state of the movable block, and the limiting member is used to limit the movable block.

5. A double-head zipper applicator according to claim 1, characterized in that, The detection unit includes a fixed block, a detection block that is rotatably and elastically disposed on the fixed block, and a detection indicator, wherein the fixed block is fixed to the first mounting platform.

6. A double-head zipper applicator according to claim 1, characterized in that, The glue feeding mechanism includes a glue feeding unit, a glue separating unit, and a glue cutting unit. The glue feeding unit is used to simultaneously feed two tapes. The glue separating unit is used to separate the two overlapping tapes and simultaneously feed them to both sides of the zipper tape. The glue cutting unit cuts the two tapes.

7. A double-head zipper applicator according to claim 1, characterized in that, The welding mechanism includes an ultrasonic welding head, a welding pattern mold, and a welding cylinder. The ultrasonic welding head is located below the zipper belt, the welding pattern mold is located above the zipper belt, and the welding cylinder is used to drive the movement of the welding pattern mold.

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