Bag making equipment

Abstract

The utility model discloses bag making equipment which comprises a film material supply device, a pre-welding device, a nozzle feeding device, a nozzle welding device and a bag welding device. The film material supply device is used for providing a double-layer film material, the pre-welding device is provided with a pre-welding head, and the pre-welding head is used for locally welding the corresponding positions of the double-layer film material together and enabling the parts, not welded together, of the corresponding positions to form a suction nozzle insertion cavity. The nozzle feeding device comprises a nozzle feeding seat, a nozzle supplying mechanism and a pushing mechanism, the nozzle feeding seat is provided with a nozzle pushing slide way, a nozzle outlet and a nozzle inlet are formed in the two ends of the nozzle pushing slide way respectively, the nozzle outlet can be opposite to the suction nozzle insertion cavity, and the nozzle supplying mechanism is used for supplying suction nozzles to the nozzle inlet; and the pushing mechanism is used for pushing the suction nozzles at the nozzle inlet into the nozzle pushing slide way and finally pushing the suction nozzles out of the nozzle outlet. The nozzle welding device is used for welding a suction nozzle and a film material together, and the bag welding device is used for welding the film material to form a bag. The bag making equipment is high in production precision, and the film material is not prone to wrinkling.

Description

Technical Field

[0001] The utility model relates to packaging equipment, in particular to bag making equipment. Background Art

[0002] An existing bag making device is used to make a spout bag. The double-layer film material is input through a film material supply device, and the spout is sent between the double-layer film through a spout feeding device. Then, the spout and the film material are welded together through a spout welding device, and finally, the film material is welded through a bag welding device to form a bag. The existing bag making device has the problems of insufficient production accuracy and easy wrinkling of the film material. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a bag making device with high production precision and film material is not easy to wrinkle.

[0004] According to a bag making device of an embodiment of the utility model, it includes: a film material supply device for providing a double-layer film material; a pre-welding device, which is provided with a pre-welding head, and the pre-welding head is used to locally weld the corresponding positions of the double-layer film material together, and make the parts of the corresponding positions that are not welded together form a suction nozzle insertion cavity; a nozzle delivery device, including a nozzle delivery seat, a nozzle supply mechanism and a material pushing mechanism, the nozzle delivery seat is in a position where it can be inserted between the two layers of the film material, the nozzle delivery seat is provided with a nozzle pushing slide, and the two ends of the nozzle pushing slide are respectively provided with An outlet and an inlet, the outlet can be opposite to the suction nozzle insertion cavity, the nozzle supply mechanism is used to provide a suction nozzle to the inlet, and the material pushing mechanism is used to push the suction nozzle at the inlet into the nozzle pushing slide and finally push it out from the outlet; a welding nozzle device is used to weld the suction nozzle and the film material together; a bag welding device is used to weld the film material to form a bag; wherein the film material supply device can transfer the double-layer film material to the pre-welding device, the nozzle feeding device, the welding nozzle device and the bag welding device.

[0005] A bag making device according to an embodiment of the utility model has at least the following beneficial effects: in the above-mentioned bag making device, the pre-welded suction nozzle insertion cavity can provide pre-positioning, so that the suction nozzle has good positioning when being installed and the production accuracy is high; the pre-welding welds the films together in advance and the position where the suction nozzle is inserted is the pre-welding position of the film, there is a certain connection strength between the films, the film is not easy to wrinkle, and the product quality is good; by adopting different pre-welding heads and nozzle push slides, different suction nozzles can be adapted to meet the welding needs of different suction nozzles.

[0006] According to some embodiments of the utility model, the pre-welding head includes an upper pre-welding mold and a lower pre-welding mold, the upper pre-welding mold is provided with an upper pre-welding film surface, an upper hollow portion is provided in the upper pre-welding film surface, the lower pre-welding mold is provided with a lower pre-welding mold surface, a lower hollow portion is provided in the lower pre-welding mold surface, the upper pre-welding film surface and the lower pre-welding mold surface are opposite to each other and can be fitted together, the upper hollow portion and the lower hollow portion have the same contour shape and are opposite to each other up and down; the pre-welding device also includes a pre-welding mold driver for driving the upper pre-welding mold and the lower pre-welding mold to close and open the mold, and a pre-welding heater for heating the upper pre-welding mold and / or the lower pre-welding mold.

[0007] According to some embodiments of the utility model, the pushing mechanism includes a pushing rod and a pushing driver, the pushing rod is arranged on a side of the nozzle seat corresponding to the nozzle inlet, the pushing rod can be inserted into the nozzle push slide through the nozzle inlet and move along the nozzle push slide, the pushing driver is used to drive the pushing rod to reciprocate, and an elastic buffer structure is connected between the nozzle seat and the pushing rod, and the elastic buffer structure is used to elastically buffer the action of the pushing rod pushing toward the nozzle outlet.

[0008] According to some embodiments of the utility model, the elastic buffer structure includes a guide rod and an elastic member, the push nozzle slide is fixedly arranged on the first connecting seat, the push rod is fixedly arranged on the second connecting seat, the second connecting seat can reciprocate along the extension direction of the push nozzle slide, the push driver is used to drive the second connecting seat to move, the guide rod is fixed to the second connecting seat, the guide rod is slidably arranged on the first connecting seat and can reciprocate relative to the first connecting seat along the extension direction of the push nozzle slide; wherein, the first connecting seat is fixedly arranged, and a first flange limiting portion is arranged on the side of the guide rod close to the second connecting seat, and the elastic member is arranged between the first connecting seat and the first flange limiting portion.

[0009] According to some embodiments of the utility model, the elastic buffer structure includes a guide rod and an elastic member, the push nozzle slide is fixedly arranged on the first connecting seat, the push rod is fixedly arranged on the second connecting seat, the second connecting seat can reciprocate along the extension direction of the push nozzle slide, and the push driver is used to drive the second connecting seat to move, the guide rod is fixed to the second connecting seat, the guide rod is slidably arranged on the first connecting seat and can reciprocate relative to the first connecting seat along the extension direction of the push nozzle slide; wherein, the first connecting seat is movably arranged and can reciprocate along the extension direction of the push nozzle slide, the guide rod is provided with a first flange limiting portion and a second flange limiting portion, the first flange limiting portion is located on a side close to the second connecting seat, and the second flange limiting portion is located on a side of the first connecting seat away from the second connecting seat, the elastic member is arranged between the first connecting seat and the first flange limiting portion, and limiting structures are provided on both sides of the first connecting seat to limit its movement limit position.

[0010] According to some embodiments of the utility model, the welding nozzle device is arranged opposite to the nozzle outlet of the nozzle push slide; the welding nozzle device includes a welding nozzle mold, a welding nozzle mold driver and a welding nozzle heater, the welding nozzle mold includes an upper welding nozzle mold and a lower welding nozzle mold, the upper welding nozzle mold and the lower welding nozzle mold are respectively provided with an upper welding nozzle mold surface and a lower welding nozzle mold surface, the welding nozzle mold driver is used to drive the upper welding nozzle mold and the lower welding nozzle mold to close and open the mold, when the upper welding nozzle mold and the lower welding nozzle mold are closed, the upper welding nozzle mold surface and the lower welding nozzle mold surface are enclosed to form a suction nozzle adaptation cavity, and the welding nozzle heater is used to heat the upper welding nozzle mold and the lower welding nozzle mold; film clamps are respectively provided on both sides of the welding nozzle mold.

[0011] According to some embodiments of the utility model, the film material supply device includes a film unwinding mechanism and several traction mechanisms, the film unwinding mechanism and the traction mechanism are arranged from back to front, the film unwinding mechanism is provided with a unwinding shaft, the traction mechanism is used to pull the film material, the pre-welding device, the nozzle feeding device, the welding nozzle device and the bag welding device are arranged along the path of the film material supply device for conveying the mold material.

[0012] According to some embodiments of the utility model, the pre-welding device is arranged corresponding to one side of the film material along the left-right direction, and the nozzle feeding device is configured to feed the suction nozzle from the other side of the film material along the left-right direction.

[0013] According to some embodiments of the utility model, a winding device is further included, wherein the winding device is provided with a winding roller and a winding drive for driving the winding roller to rotate, and the winding device is arranged at the front end of the bag making equipment.

[0014] According to some embodiments of the utility model, it also includes a pre-welding cooling device, which is arranged on one side of the pre-welding device, and the pre-welding cooling device is used to cool the film material welded by the pre-welding device; it also includes a bag welding cooling device, which is arranged on one side of the bag welding device, and the bag welding cooling device is used to cool the film material welded by the bag welding device; it also includes a welding nozzle cooling device; the welding nozzle device is arranged between the nozzle feeding device and the bag welding device, and at least two welding nozzle devices are sequentially arranged at the downstream side process position of the bag welding cooling device, and the welding nozzle cooling device is arranged on the downstream side of the last welding nozzle device; it also includes a first exhaust positioning device, and the first exhaust positioning device The film material supply device comprises a film placing mechanism and two traction mechanisms, the film placing mechanism is arranged at the rear end of the bag making equipment, one of the traction mechanisms is arranged between the nozzle feeding device and the pre-welding cooling device, and the other of the traction mechanisms is arranged between the easy-tear structure forming device and the second exhaust positioning device.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0018] Figure 2 for Figure 1 One of the partial enlarged views of the structure shown;

[0019] Figure 3 It is a three-dimensional schematic diagram of a pre-welding device according to an embodiment of the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of an upper pre-welding mold of an embodiment of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the lower pre-welding mold of an embodiment of the utility model;

[0022] Figure 6 It is a three-dimensional schematic diagram of a nozzle delivery device according to an embodiment of the utility model;

[0023] Figure 7 It is a three-dimensional schematic diagram of the nozzle holder of the embodiment of the utility model;

[0024] Figure 8 for Figure 7 a cross-sectional view of the structure shown;

[0025] Fig. 9 A three-dimensional schematic diagram of a welding nozzle device according to an embodiment of the utility model;

[0026] Fig.10 for Figure 1 The second partial enlarged view of the structure shown.

[0027] Reference numerals:

[0028] Film material supply device 100, film placing mechanism 110, traction mechanism 120;

[0029] Pre-welding device 200, pre-welding head 210, upper pre-welding mold 211, lower pre-welding mold 212, upper pre-welding film surface 2111, upper hollow portion 2112, lower pre-welding mold surface 2121, lower hollow portion 2122, pre-welding mold driver 220, pre-welding heater 230;

[0030] Nozzle feeding device 300, nozzle feeding seat 310, nozzle feeding mechanism 320, material pushing mechanism 330, nozzle pushing slide 311, nozzle outlet 3111, nozzle inlet 3112, material pushing rod 331, material pushing driver 332, guide rod 333, elastic member 334, first connecting seat 340, second connecting seat 335, first flange limiting portion 3331, second flange limiting portion 3332, linear vibrator 321, first material blocking mechanism 322, rotating material seat 323, second material blocking mechanism 324, rotating driver 325;

[0031] A welding nozzle device 400, a welding nozzle mold 410, a welding nozzle mold driver 420, an upper welding nozzle mold 411, a lower welding nozzle mold 412, a welding nozzle heater 430, and a film clamp 440;

[0032] Bag welding device 500; winding device 600; pre-welding cooling device 700; bag welding cooling device 800; welding nozzle cooling device 900; first exhaust positioning device 1000; hole forming device 1100; second exhaust positioning device 1200; easy-tear structure forming device 1300. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 10A bag making device includes: a film material supply device 100, a pre-welding device 200, a nozzle feeding device 300, a nozzle welding device 400 and a bag welding device 500. The film material supply device 100 is used to provide a double-layer film material, and the pre-welding device 200 is provided with a pre-welding head 210, which is used to locally weld the corresponding positions of the double-layer film material together, and make the corresponding positions that are not welded together form a nozzle insertion cavity. The nozzle feeding device 300 includes a nozzle feeding seat 310, a nozzle supply mechanism 320 and a material pushing mechanism 330. The nozzle feeding seat 310 is in a position where it can be inserted between two layers of film materials. The nozzle feeding seat 310 is provided with a nozzle pushing slide 311. The two ends of the nozzle pushing slide 311 are respectively provided with a nozzle outlet 3111 and a nozzle inlet 3112. The nozzle outlet 3111 can be opposite to the nozzle insertion cavity. The nozzle supply mechanism 320 is used to provide a nozzle to the nozzle inlet 3112. The material pushing mechanism 330 is used to push the nozzle at the nozzle inlet 3112 into the nozzle pushing slide 311 and finally push it out from the nozzle outlet 3111. The nozzle welding device 400 is used to weld the nozzle and the film material together, and the bag welding device 500 is used to weld the film material to form a bag. Among them, the film material supply device 100 can transfer the double-layer film material to the pre-welding device 200, the nozzle feeding device 300, the nozzle welding device 400 and the bag welding device 500.

[0038] When making bags, a double-layer film material is supplied by the film material supply device 100, and the film material supply device 100 first conveys the film material to the pre-welding device 200, and the double-layer film material is welded by the pre-welding head 210, so that a suction nozzle insertion cavity is formed on the film material, and the suction nozzle is supplied to the nozzle inlet 3112 of the nozzle pushing slide 311 through the nozzle supply mechanism 320, and then the suction nozzle is pushed into the nozzle pushing slide 311 by the material pushing mechanism 330 and pushed out through the nozzle outlet 3111, so that the suction nozzle is inserted into the pre-welded suction nozzle insertion cavity, and then the suction nozzle and the film material are welded together by the nozzle welding device 400, and the film material is welded to form a bag by the bag welding device 500. In the above-mentioned bag making equipment, the pre-welded suction nozzle insertion cavity can provide pre-positioning, so that the suction nozzle has good positioning when installed and the production accuracy is high; the pre-welding welds the films together first and the position where the suction nozzle is inserted is the pre-welded position of the film, there is a certain connection strength between the films, the film is not easy to wrinkle, and the product quality is good; by using different pre-welding heads 210 and nozzle push slides 311, different suction nozzles can be adapted to meet the welding needs of different suction nozzles.

[0039] In the embodiment, the bag welding device 500 includes a welding knife and a driver for driving the welding knife to move, and the driver is, for example, a cylinder, an electric cylinder, etc. After the double-layer film material enters the corresponding station of the bag welding device 500, the welding knife presses against the film material, thereby welding the film material to form a bag. Of course, it is conceivable that the bag welding device 500 is not limited to the above-mentioned embodiment, for example, a hot roller is used to weld the film material. It is understandable that in the art, there are many devices for welding film materials to form bags, and those skilled in the art can configure them according to actual conditions.

[0040] In an embodiment, the pre-welding head 210 includes an upper pre-welding mold 211 and a lower pre-welding mold 212, the upper pre-welding mold 211 is provided with an upper pre-welding film surface 2111, and an upper hollow portion 2112 is provided in the upper pre-welding film surface 2111, the lower pre-welding mold 212 is provided with a lower pre-welding mold surface 2121, and a lower hollow portion 2122 is provided in the lower pre-welding mold surface 2121, the upper pre-welding film surface 2111 and the lower pre-welding mold surface 2121 are opposite to each other and can be attached together, and the contour shapes of the upper hollow portion 2112 and the lower hollow portion 2122 are the same and opposite to each other; the pre-welding device 200 also includes a pre-welding mold driver 220 for driving the upper pre-welding mold 211 and the lower pre-welding mold 212 to close and open the mold, and a pre-welding heater 230 for heating the upper pre-welding mold 211 and / or the lower pre-welding mold 212. During pre-welding, the upper pre-welding mold 211 and the lower pre-welding mold 212 are molded together and clamp the double-layer film material. The upper pre-welding film surface 2111 and the lower pre-welding mold surface 2121 are attached together to weld the film material together, and no welding is formed at the upper hollow portion 2112 and the lower hollow portion 2122, so that a cavity can be formed, that is, the aforementioned suction nozzle insertion cavity. The above-mentioned pre-welding device 200 has a simple structure and is easy to implement. Of course, it is conceivable that the pre-welding device 200 is not limited to the above-mentioned embodiment. For example, the pre-welding head 210 is a movable welding head, and the corresponding positions are welded by moving to form the aforementioned suction nozzle insertion cavity. It can be understood that in this field, there are many devices for realizing film welding, and those skilled in the art can configure them according to actual conditions.

[0041] In an embodiment, the pre-welding mold driver 220 can use two cylinders, and the upper pre-welding mold 211 and the lower pre-welding mold 212 are respectively connected to the piston rods of the two cylinders; or the pre-welding mold driver 220 can use an electric cylinder with a linkage mechanism to drive the upper pre-welding mold 211 and the lower pre-welding mold 212 to move closer to and away from each other to achieve mold closing and mold opening.

[0042] In an embodiment, the pre-welding heater 230 may be a heating plate, a heating wire, a heating sheet or a heating tube, etc. Those skilled in the art may specifically configure the structure of the pre-welding heater 230 according to actual conditions.

[0043] In the embodiment, the push mechanism 330 includes a push rod 331 and a push driver 332. The push rod 331 is arranged on one side of the nozzle feeding seat 310 corresponding to the nozzle inlet 3112. The push rod 331 can be inserted into the nozzle push slide 311 through the nozzle inlet 3112 and move along the nozzle push slide 311. The push driver 332 is used to drive the push rod 331 to reciprocate. An elastic buffer structure is connected between the nozzle feeding seat 310 and the push rod 331. The elastic buffer structure is used to elastically buffer the action of the push rod 331 pushing toward the nozzle outlet 3111. When the suction nozzle is pushed into the suction nozzle insertion cavity, the push driver 332 drives the push rod 331 to move, so that the push rod 331 pushes the suction nozzle provided by the nozzle supply mechanism 320 into the nozzle inlet 3112 and moves along the nozzle push slide 311, thereby pushing the suction nozzle out of the nozzle outlet 3111 and inserting it into the pre-welded suction nozzle insertion cavity. In the above process, the elastic buffer structure can be used to buffer the movement of the push rod 331, so that the pushing movement is more stable.

[0044] In the embodiment, the elastic buffer structure includes a guide rod 333 and an elastic member 334, the nozzle push slide 311 is fixedly arranged on the first connecting seat 340, the material push rod 331 is fixedly arranged on the second connecting seat 335, the second connecting seat 335 can reciprocate along the extension direction of the nozzle push slide 311, the material push driver 332 is used to drive the second connecting seat 335 to move, the guide rod 333 is fixed to the second connecting seat 335, the guide rod 333 is slidably arranged on the first connecting seat 340 and can reciprocate relative to the first connecting seat 340 along the extension direction of the nozzle push slide 311; wherein, The first connection seat 340 is fixedly arranged, a first flange stopper 3331 is arranged on one side of the guide rod 333 close to the second connection seat 335, and the elastic member 334 is arranged between the first connection seat 340 and the first flange stopper 3331; with the above structure, when the push drive 332 drives the second connection seat 335 to move, the push rod 331 and the guide rod 333 can be driven to move synchronously, and when the push rod 331 pushes the suction nozzle, the guide rod 333 can press the elastic member 334 through the first flange stopper 3331 thereon, thereby forming an elastic buffer. The above structure is simple in structure and easy to implement to realize elastic buffering.

[0045] In the above-mentioned embodiment, the first connection seat 340 and the second connection seat 335 are arranged on the linear guide assembly, the first connection seat 340 is locked to the linear guide assembly, and the second connection seat 335 can move along the linear guide. The push drive 332 can be a cylinder or an electric cylinder, and its moving component is fixed to the second connection seat 335, so that the guide rod 333, the second connection seat 335 and the push rod 331 can be driven to move together. The elastic member 334 can be a spring, which can be sleeved on the guide rod 333. Of course, it is conceivable that the elastic member 334 can also be other structures, such as a spring, a rubber body, etc.

[0046] It is conceivable that in some embodiments, the following structure can also be adopted: the first connecting seat 340 is movably arranged and can reciprocate along the extension direction of the push nozzle slide 311, the guide rod 333 is provided with a first flange limiting portion 3331 and a second flange limiting portion 3332, the first flange limiting portion 3331 is located on the side close to the second connecting seat 335, and the second flange limiting portion 3332 is located on the side of the first connecting seat 340 away from the second connecting seat 335, the elastic member 334 is arranged between the first connecting seat 340 and the first flange limiting portion 3331, and the first connecting seat 340 is provided with limiting structures on both sides to limit its movement limit position. With the above structure, when the push rod 331 pushes the suction nozzle, the first flange limiter 3331 can press the elastic member 334, and the elastic member 334 can press the first connection seat 340, so that the nozzle seat 310 is close to the suction nozzle insertion cavity. After the nozzle seat 310 and the first connection seat 340 reach the limit position, they stop moving, and the guide rod 333 compresses the elastic member 334 through the first flange limiter 3331, so that the push rod 331 can continue to move and push the suction nozzle into the suction nozzle insertion cavity. When the components are reset, the guide rod 333, the second connection seat 335 and the push rod 331 are reset, and the guide rod 333 presses the first connection seat 340 through the second flange limiter 3332 and pulls the first connection seat 340 and the nozzle seat 310 fixed thereto to reset together until they are reset to the limit position. The above structure can realize a two-stage action when pushing the suction nozzle, that is, the nozzle feeding seat 310 can be brought close to the suction nozzle insertion cavity and then the suction nozzle can be pushed by the pushing rod 331, so that the suction nozzle can be pushed into the suction nozzle insertion cavity more stably.

[0047] In the above embodiment, a sliding sleeve may be provided on the first connection seat 340, and the guide rod 333 may be slidably provided on the sliding sleeve, so as to realize movement relative to the first connection seat 340. Of course, the guide rod 333 may also be provided on the first connection seat 340 through a linear guide assembly. In the above embodiment, the limiting structure may be a top block or a baffle, etc.

[0048] In the embodiment, the nozzle supply mechanism 320 includes a vibration disk, a linear vibrator 321, a first material blocking mechanism 322, a rotating material seat 323, a second material blocking mechanism 324 and a rotary driver 325. The output end of the vibration disk is connected to the input end of the linear vibrator 321. The first material blocking mechanism 322 is used to stop and make way for the material of the linear vibrator 321. The rotating material seat 323 can be rotatably arranged and has suction nozzle loading positions on both sides of the rotation axis. When one of the suction nozzle loading positions in the rotating material seat 323 is connected to the output end of the linear vibrator 321, the other suction nozzle loading position is between the pushing mechanism 330 and the nozzle inlet 3112 of the nozzle feeding seat 310. The second material blocking mechanism 324 is used to stop the suction nozzle loading position away from the side of the linear vibrator 321. The rotary driver 325 is used to drive the rotating material seat 323 to rotate so that the suction nozzle loading position can be swapped. When supplying nozzles, the nozzles form a queue through the vibration plate and are linearly output through the linear vibrator 321 and input to the nozzle loading position; then the rotary material holder 323 is driven to rotate by the rotary driver 325, so that the nozzle loading position loaded with nozzles is exchanged to the position corresponding to the nozzle inlet 3112, and the pushing mechanism 330 can push the nozzle away, while the linear vibrator 321 continues to send the nozzle to the empty nozzle loading position, repeating the above process, and the nozzle inlet 3112 can be continuously supplied. The above nozzle supply mechanism 320 has high nozzle supply efficiency. It is conceivable that the nozzle supply mechanism 320 is not limited to the above-mentioned implementation mode. For example, the nozzle supply mechanism 320 can use a horizontal pushing mechanism 330 to replace the above-mentioned rotating material seat 323 and the rotating driver 325. When the linear vibrator 321 outputs the suction nozzle, the suction nozzle is pushed to the nozzle inlet 3112 through the horizontal pushing mechanism 330; or the nozzle supply mechanism 320 uses a robot, and the robot grabs the suction nozzle and moves it directly to the nozzle inlet 3112.

[0049] In the embodiment, the first material blocking mechanism 322 can use a cylinder and a material blocking member to realize its function. The first material blocking mechanism 322 can block and give way to the suction nozzle in the linear vibrator 321, so as to facilitate the replacement of the suction nozzle loading position. In the embodiment, the second material blocking mechanism 324 is a material blocking plate, which can block one side of the suction nozzle loading position to prevent the suction nozzle output by the linear vibrator 321 from falling from one side of the suction nozzle loading position. It is conceivable that the first material blocking mechanism 322 can also use a combination of a lever and a motor, and the motor drives the lever to rotate to switch the position of blocking and giving way; the second material blocking mechanism 324 can also be configured with reference to the implementation of the first material blocking mechanism 322.

[0050] In the embodiment, a welding nozzle device 400 is arranged opposite to the nozzle outlet 3111 of the nozzle push slide 311. By arranging the welding nozzle device 400 opposite to the nozzle outlet 3111, the nozzle can be welded immediately after the nozzle is pushed into the nozzle insertion cavity, ensuring stability.

[0051] In an embodiment, the welding nozzle device 400 includes a welding nozzle mold 410, a welding nozzle mold driver 420, and a welding nozzle heater 430. The welding nozzle mold 410 includes an upper welding nozzle mold 411 and a lower welding nozzle mold 412. The upper welding nozzle mold 411 and the lower welding nozzle mold 412 are respectively provided with an upper welding nozzle mold surface and a lower welding nozzle mold surface. The welding nozzle mold driver 420 is used to drive the upper welding nozzle mold 411 and the lower welding nozzle mold 412 to close and open the mold. When the upper welding nozzle mold 411 and the lower welding nozzle mold 412 are closed, the upper welding nozzle mold surface and the lower welding nozzle mold surface are enclosed to form a suction nozzle adaptation cavity. The welding nozzle heater 430 is used to heat the upper welding nozzle mold 411 and the lower welding nozzle mold 412. In an embodiment, the welding nozzle mold driver 420 can use two cylinders or electric cylinders to drive the upper welding nozzle mold 411 and the lower welding nozzle mold 412 to move respectively, or use a single driver and link the upper welding nozzle mold 411 and the lower welding nozzle mold 412 to move through a linkage mechanism. In an embodiment, the tip heater 430 may be a heating element such as a heating plate, a heating wire, or a heating tube.

[0052] In the embodiment, film clamps 440 are respectively provided on both sides of the welding nozzle mold 410, so that when welding the nozzle, the film materials on both sides can be clamped by the film clamps 440 to ensure the stability of the welding nozzle.

[0053] In an embodiment, the film material supply device 100 includes a film placing mechanism 110 and a plurality of traction mechanisms 120, the film placing mechanism 110 and the traction mechanism 120 are arranged from back to front, the film placing mechanism 110 is provided with a reeling shaft, the traction mechanism 120 is used to traction the film material, and the pre-welding device 200, the nozzle feeding device 300, the welding nozzle device 400 and the bag welding device 500 are arranged along the path of the film material supply device 100 to convey the mold material. The film coil can be installed on the reeling shaft to release it, and it is pulled forward by the traction mechanism 120, and each device performs corresponding process operations on the pulled film material in turn. By adopting the above-mentioned film material supply device 100, assembly line production can be realized, with high production efficiency and simple equipment structure. Of course, it is conceivable that the film material supply device 100 is not limited to the above-mentioned embodiment. For example, the film material supply device 100 adopts segmented feeding, that is, a predetermined length of film material is supplied at one time, and it is transferred by a manipulator or a transportation mechanism.

[0054] In an embodiment, the film coil can be a double-layer wound film material, or a single-layer wound film material can be output in a double layer through a roller group; the film unwinding mechanism 110 can be provided with some tension control mechanisms to stabilize the tension of the film material. The traction mechanism 120 is provided with a pair of traction wheels, which are arranged up and down. The pair of traction wheels clamp the film material, and the traction wheels are driven to rotate by a motor to pull the film material forward. Of course, the traction mechanism 120 can also use a number of tension rollers, the film material is wound around the tension rollers, and the motor drives the tension rollers to rotate, thereby pulling the film material to move. It can be understood that in this field, there are many implementation methods for film material traction, and those skilled in the art can configure them according to actual conditions.

[0055] In the embodiment, the pre-welding device 200 is arranged corresponding to one side of the film material along the left-right direction, and the nozzle feeding device 300 is configured to feed the nozzle from the other side of the film material along the left-right direction. With the above structure, the nozzle is inserted into the nozzle insertion cavity through the inner side of the double-layer film, and the nozzle can stably open the film material, and the film material is not easily compressed and wrinkled, thereby improving product quality.

[0056] In the embodiment, a reeling device 600 is further included. The reeling device 600 is provided with a reeling roller and a reeling driver for driving the reeling roller to rotate. The reeling device 600 is provided at the front end of the bag making device. The reeling device 600 is used to collect the film material after the nozzle welding is completed. The structure of collecting the material is simple. The reeling driver can specifically adopt a motor or other structure capable of driving the component to rotate. It is conceivable that the reeling device 600 is not limited to be used for collecting the material. For example, the material is collected after each bag is cut by a cutting mechanism.

[0057] In the embodiment, a pre-welding cooling device 700 is also included, which is arranged on one side of the pre-welding device 200. The pre-welding cooling device 700 is used to cool the film material welded by the pre-welding device 200. Specifically, the pre-welding cooling device 700 can be provided with an upper and lower mold, and the upper and lower molds are respectively connected with cooling water channels. The upper and lower molds are closed and opened by a driver such as a cylinder. The film material enters between the upper and lower molds, and is cooled by the water channel after closing the mold. Of course, it is conceivable that the pre-welding cooling device 700 is not limited to the above-mentioned embodiments. For example, a cooling chamber is provided to cool the film material when it passes through, or a cold roller is provided to cool the film material.

[0058] In the embodiment, a bag welding cooling device 800 is also included, which is arranged on one side of the bag welding device 500. The bag welding cooling device 800 is used to cool the film material welded by the bag welding device 500. The bag welding cooling device 800 can be implemented specifically with reference to the cooling principle of the pre-welding cooling device 700, and the size of the upper and lower molds can be adapted to the welding area of ​​the bag.

[0059] In the embodiment, a welding nozzle cooling device 900 is also included; a welding nozzle device 400 is arranged between the nozzle feeding device 300 and the bag welding device 500, at least two welding nozzle devices 400 are arranged in sequence at the downstream process position of the bag welding cooling device 800, and the welding nozzle cooling device 900 is arranged at the downstream side of the last welding nozzle device 400; the welding nozzle cooling device 900 can be specifically configured with reference to the structural adaptability of the pre-welding cooling device 700; through multiple welding nozzle devices 400, the suction nozzle can be welded step by step in multiple times, and the welding effect is good. It can be understood that the downstream side refers to the process position at the back in the process flow sequence. In the embodiment shown in the figure, the downstream side is the side that is more forward in the direction.

[0060] In the embodiment, a first exhaust positioning device 1000 is further included, and the first exhaust positioning device 1000 is arranged between the nozzle feeding device 300 and the bag welding device 500; the first exhaust positioning device 1000 can adopt an exhaust clamp and a positioning plate, and the exhaust clamp allows the double-layer film to pass through by clamping, thereby exhausting the gas, and the positioning plate can limit the film material (left and right limit) by abutting the suction nozzle to ensure that the film material does not deviate. The exhaust clamp and the positioning plate can be used adjacent to each other, or dispersed between other devices.

[0061] In an embodiment, a hole forming device 1100 is also included, and the hole forming device 1100 is arranged on the downstream side of the welding nozzle cooling device 900; the hole forming device 1100 can specifically be provided with a stamping die or a punch to punch the film material, or form holes by cutting.

[0062] In the embodiment, a second exhaust positioning device 1200 is further included, and the second exhaust positioning device 1200 is arranged on the downstream side of the hole forming device 1100; the second exhaust positioning device 1200 may include an exhaust clamp, a tension roller group and a guide rod, the exhaust clamp is used for exhausting, the tension roller group is used for winding the film material, the guide rod is arranged along the front and back and inserted between the tension rollers, and the guide rod is used to abut against the limiting suction nozzle, thereby limiting the position of the film material. One end of the guide rod is arranged tilted, which can facilitate the introduction of the suction nozzle.

[0063] In the embodiment, the easy-tear structure forming device 1300 is further included, and the easy-tear structure forming device 1300 is arranged at the downstream side of the second exhaust positioning device 1200; the easy-tear structure forming device 1300 can form the easy-tear structure on the film material by die punching, or by cutting. The easy-tear structure can be, for example, an ant breakpoint line, an indentation line, etc.

[0064] In an embodiment, the film material supply device 100 includes a film placing mechanism 110 and two traction mechanisms 120. The film placing mechanism 110 is arranged at the rear end of the bag making equipment, one traction mechanism 120 is arranged between the nozzle feeding device 300 and the pre-welding cooling device 700, and the other traction mechanism 120 is arranged between the easy-tear structure forming device 1300 and the second exhaust positioning device 1200.

[0065] In an embodiment, a pre-welding device 200, a nozzle feeding device 300, a welding nozzle device 400, a bag welding device 500, a pre-welding cooling device 700, a bag welding cooling device 800, a welding nozzle cooling device 900, a first exhaust positioning device 1000, a hole forming device 1100, a second exhaust positioning device 1200, and an easy-tear structure forming device 1300 are arranged on a machine base, and the position of each device on the machine base can be adjusted forward and backward.

[0066] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A bag making device, characterized in that: include: A film material supply device (100), used for providing a double-layer film material; A pre-welding device (200) is provided with a pre-welding head (210), wherein the pre-welding head (210) is used to locally weld corresponding positions of the double-layer film material together, and to make the unwelded portions at the corresponding positions form a nozzle insertion cavity; The nozzle delivery device (300) comprises a nozzle delivery seat (310), a nozzle supply mechanism (320) and a material pushing mechanism (330), wherein the nozzle delivery seat (310) is located in a position capable of being inserted between two layers of the film material, the nozzle delivery seat (310) is provided with a nozzle pushing slideway (311), and both ends of the nozzle pushing slideway (311) are respectively provided with a nozzle outlet (3111) and a nozzle inlet (3112), the nozzle outlet (3111) can be opposite to the suction nozzle insertion cavity, the nozzle supply mechanism (320) is used for providing a suction nozzle to the nozzle inlet (3112), and the material pushing mechanism (330) is used for pushing the suction nozzle at the nozzle inlet (3112) into the nozzle pushing slideway (311) and finally pushing it out from the nozzle outlet (3111); A welding nozzle device (400), used for welding the suction nozzle and the film material together; A bag welding device (500) for welding the film material to form a bag; The film material supply device (100) is capable of transferring the double-layer film material to the pre-welding device (200), the nozzle feeding device (300), the welding nozzle device (400) and the bag welding device (500).

2. The bag making equipment according to claim 1, characterized in that: The pre-welding head (210) comprises an upper pre-welding mold (211) and a lower pre-welding mold (212); the upper pre-welding mold (211) is provided with an upper pre-welding film surface (2111), and an upper hollow portion (2112) is provided in the upper pre-welding film surface (2111); the lower pre-welding mold (212) is provided with a lower pre-welding mold surface (2121), and a lower hollow portion (2122) is provided in the lower pre-welding mold surface (2121); the upper pre-welding film surface (2111) and the lower pre-welding mold surface (2121) are provided with a lower hollow portion (2122); The mold surfaces (2121) are opposed to each other up and down and can be fitted together, and the upper hollow portion (2112) and the lower hollow portion (2122) have the same contour shape and are opposed to each other up and down; the pre-welding device (200) also includes a pre-welding mold driver (220) for driving the upper pre-welding mold (211) and the lower pre-welding mold (212) to close and open the mold, and a pre-welding heater (230) for heating the upper pre-welding mold (211) and / or the lower pre-welding mold (212).

3. The bag making equipment according to claim 1, characterized in that: The pushing mechanism (330) includes a pushing rod (331) and a pushing driver (332); the pushing rod (331) is arranged on a side of the nozzle seat (310) corresponding to the nozzle inlet (3112); the pushing rod (331) can be inserted into the nozzle push slide (311) through the nozzle inlet (3112) and move along the nozzle push slide (311); the pushing driver (332) is used to drive the pushing rod (331) to reciprocate; an elastic buffer structure is connected between the nozzle seat (310) and the pushing rod (331); the elastic buffer structure is used to elastically buffer the action of the pushing rod (331) pushing toward the nozzle outlet (3111).

4. The bag making equipment according to claim 3, characterized in that: The elastic buffer structure comprises a guide rod (333) and an elastic member (334); the nozzle push slideway (311) is fixedly arranged on the first connecting seat (340); the material push rod (331) is fixedly arranged on the second connecting seat (335); the second connecting seat (335) can reciprocate along the extension direction of the nozzle push slideway (311); the material push driver (332) is used to drive the second connecting seat (335) to move; the guide rod (333) is fixed on the second connecting seat (335); the guide rod (333) is slidably arranged on the first connecting seat (340) and can reciprocate relative to the first connecting seat (340) along the extension direction of the nozzle push slideway (311); Wherein, the first connecting seat (340) is arranged in a fixed position, a first flange limiting portion (3331) is arranged on a side of the guide rod (333) close to the second connecting seat (335), and the elastic member (334) is arranged between the first connecting seat (340) and the first flange limiting portion (3331).

5. The bag making equipment according to claim 3, characterized in that: The elastic buffer structure comprises a guide rod (333) and an elastic member (334); the nozzle push slideway (311) is fixedly arranged on the first connecting seat (340); the material push rod (331) is fixedly arranged on the second connecting seat (335); the second connecting seat (335) can reciprocate along the extension direction of the nozzle push slideway (311); the material push driver (332) is used to drive the second connecting seat (335) to move; the guide rod (333) is fixed on the second connecting seat (335); the guide rod (333) is slidably arranged on the first connecting seat (340) and can reciprocate relative to the first connecting seat (340) along the extension direction of the nozzle push slideway (311); In which, the first connecting seat (340) is movably arranged and can reciprocate along the extension direction of the push nozzle slide (311), and the guide rod (333) is provided with a first flange limiting portion (3331) and a second flange limiting portion (3332), the first flange limiting portion (3331) is located on the side close to the second connecting seat (335), and the second flange limiting portion (3332) is located on the side of the first connecting seat (340) away from the second connecting seat (335), the elastic member (334) is arranged between the first connecting seat (340) and the first flange limiting portion (3331), and limiting structures for limiting its movement limit are arranged on both sides of the first connecting seat (340).

6. The bag making equipment according to claim 1, characterized in that: The welding nozzle device (400) is arranged opposite to the nozzle outlet (3111) of the nozzle push slideway (311); the welding nozzle device (400) comprises a welding nozzle mold (410), a welding nozzle mold driver (420) and a welding nozzle heater (430); the welding nozzle mold (410) comprises an upper welding nozzle mold (411) and a lower welding nozzle mold (412); the upper welding nozzle mold (411) and the lower welding nozzle mold (412) are respectively provided with an upper welding nozzle mold surface and a lower welding nozzle mold surface; The mold driver (420) is used to drive the upper welding nozzle mold (411) and the lower welding nozzle mold (412) to close and open the mold. When the upper welding nozzle mold (411) and the lower welding nozzle mold (412) are closed, the upper welding nozzle mold surface and the lower welding nozzle mold surface are combined to form a suction nozzle adaptation cavity. The welding nozzle heater (430) is used to heat the upper welding nozzle mold (411) and the lower welding nozzle mold (412); and film clamps (440) are respectively provided on both sides of the welding nozzle mold (410).

7. The bag making equipment according to claim 1, characterized in that: The film material supply device (100) comprises a film unwinding mechanism (110) and a plurality of traction mechanisms (120), wherein the film unwinding mechanism (110) and the traction mechanisms (120) are arranged from back to front, the film unwinding mechanism (110) is provided with an unwinding shaft, and the traction mechanism (120) is used to pull the film material, and the pre-welding device (200), the nozzle feeding device (300), the welding nozzle device (400) and the bag welding device (500) are arranged along a path for the film material supply device (100) to transport the mold material.

8. The bag making equipment according to claim 7, characterized in that: The pre-welding device (200) is arranged corresponding to one side of the film material along the left-right direction, and the nozzle feeding device (300) is configured to feed the suction nozzle from the other side of the film material along the left-right direction.

9. The bag making equipment according to claim 7, characterized in that: It also includes a winding device (600), wherein the winding device (600) is provided with a winding roller and a winding driver for driving the winding roller to rotate, and the winding device (600) is arranged at the front end of the bag making equipment.

10. The bag making equipment according to claim 1, characterized in that: It also comprises a pre-welding cooling device (700) disposed on one side of the pre-welding device (200), the pre-welding cooling device (700) being used to cool the film material welded by the pre-welding device (200); It also includes a bag welding cooling device (800) disposed on one side of the bag welding device (500), and the bag welding cooling device (800) is used to cool the film material welded by the bag welding device (500); It also includes a welding nozzle cooling device (900); the welding nozzle device (400) is arranged between the nozzle feeding device (300) and the bag welding device (500); at least two welding nozzle devices (400) are arranged in sequence at the downstream process position of the bag welding cooling device (800); and the welding nozzle cooling device (900) is arranged at the downstream side of the last welding nozzle device (400); It also includes a first exhaust positioning device (1000), wherein the first exhaust positioning device (1000) is arranged between the nozzle feeding device (300) and the bag welding device (500); It also includes a hole forming device (1100), wherein the hole forming device (1100) is arranged on the downstream side of the welding nozzle cooling device (900); It also includes a second exhaust positioning device (1200), wherein the second exhaust positioning device (1200) is arranged on the downstream side of the hole forming device (1100); It also includes an easy-tear structure forming device (1300), wherein the easy-tear structure forming device (1300) is arranged on the downstream side of the second exhaust positioning device (1200); The film material supply device (100) comprises a film placing mechanism (110) and two traction mechanisms (120), wherein the film placing mechanism (110) is arranged at the rear end of the bag making equipment, one of the traction mechanisms (120) is arranged between the nozzle feeding device (300) and the pre-welding cooling device (700), and the other of the traction mechanisms (120) is arranged between the easy-tear structure forming device (1300) and the second exhaust positioning device (1200).

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