Automatic nozzle welding machine for spout bag

Abstract

The present invention belongs to the technical field of nozzle welding machines, and specifically relates to an automatic nozzle welding machine for nozzle bags, comprising a vibrating feeding machine table and a nozzle welding platform, the nozzle welding platform is equipped with a feeding mechanism, a nozzle welding mechanism, a feeding mechanism and a nozzle feeding mechanism, the feeding mechanism comprises a material storage rack and a pneumatic nozzle, the nozzle welding platform is equipped with a work station rack, the nozzle welding mechanism comprises a pneumatic nozzle head, the nozzle welding mechanism also comprises a pneumatic clamping platform, the feeding mechanism comprises a driving platform and a feeding strip, the feeding strip is provided with a clamping rod, and the feeding strip is provided with an opening component; the technical solution of the present invention can complete the automatic nozzle welding of the nozzle bag, has a high degree of automation, and can effectively improve the production efficiency of the nozzle bag, and at the same time, the opening component of the present invention uses a sticky plate to open the opening of the nozzle bag, which is different from the suction cup opening method of the prior art, and can overcome the problem that the suction cup negative pressure fails in the existing suction cup adsorption method and the nozzle bag cannot be opened.

Description

Technical Field

[0001] The invention belongs to the technical field of nozzle welding machines, and in particular relates to an automatic nozzle welding machine for a nozzle bag. Background Art

[0002] The spout bag is a common food packaging bag, which is generally made of a plastic packaging bag and a spout fixed by heat welding. It is often used to package liquids (such as soy milk, fruit juice, etc.), viscous foods (such as eight-treasure porridge, etc.) or powders (such as powders of various fruit juice drinks, etc.). The provided spout can facilitate people to eat by sucking the spout or pour out for drinking. It has the advantages of good sealing, convenient eating and easy storage. In the production process of the spout bag, it is necessary to open the opening of the spout bag, then put the spout into the opening of the spout bag, and finally weld the spout through a heat welding device. There are few related integrated equipment in the prior art. In order to facilitate the production and processing of spout bags and realize the automatic production of spout bags, we propose an automatic spout welding machine for spout bags. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic nozzle welding machine for a nozzle bag, so as to solve the problems existing in the background technology.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0005] The automatic nozzle welding machine for nozzle bags comprises a vibrating feeding machine table and a nozzle platform, the nozzle platform is equipped with a feeding mechanism, a nozzle mechanism, a feeding mechanism and a nozzle feeding mechanism, the feeding mechanism comprises a storage rack and a pneumatic nozzle, the bottom of the storage rack is an empty slot and is fixedly arranged at one end of the length direction of the nozzle platform, there are two pneumatic nozzles, the two pneumatic nozzles correspond to the bottom position of the storage rack and are arranged along the width direction of the nozzle platform, the nozzle platform is equipped with a station frame located beside the storage rack and extending along the length direction of the nozzle platform, the station frame is divided into a plurality of nozzle stations arranged at equal distances by a plurality of vertical brackets perpendicular to the nozzle platform;

[0006] The welding nozzle mechanism includes a plurality of pneumatic welding nozzle heads, which are respectively installed on the station frames on the upper and lower sides corresponding to each welding nozzle station, and each of the pneumatic welding nozzle heads corresponds to the front end position of the nozzle bag. The welding nozzle mechanism also includes a pneumatic pressing platform, and the pneumatic pressing platform corresponds to the rear end position of the nozzle bag.

[0007] The feeding mechanism is located between the workstation frame and the pneumatic pressing platform, and includes a driving platform and feeding strips located at upper and lower sides, and the driving platform is used to drive the feeding strips at the upper and lower sides to reciprocate laterally and drive the feeding strips at the upper and lower sides to move closer and farther away from each other;

[0008] A plurality of groups of clamping rods having the same spacing as the nozzle stations are equidistantly arranged on the sides facing each other on the upper and lower sides of the feeding strips, the clamping rods corresponding to the bottom position of the storage rack, each group of the clamping rods has two clamping rods and are arranged along the length direction of the nozzle platform, the number of the groups of the clamping rods is the same as the number of the nozzle stations, the upper and lower sides of the feeding strips are also commonly provided with an opening component at one end close to the feeding mechanism, the spacing between the opening component and an adjacent group of the clamping rods is the same as the spacing of the nozzle stations, and the opening component is used to open the front end of the nozzle bag;

[0009] The suction nozzle feeding mechanism is located between the vibration feeding machine platform and the welding nozzle station closest to the storage rack.

[0010] The opening component includes a mounting box, a slider, a pressure plate and a sticking plate. The mounting boxes are two in number and are respectively fixed to the sides facing the feeding strips on the upper and lower sides. The sliders are two in number and are slidably mounted on the two mounting boxes and elastically connected by springs. The pressure plates are two in number and are respectively fixed to the sides facing the two sliders. The sticking plates are two in number and are elastically hinged to the sides of the two pressure plates facing the welding nozzle station.

[0011] In the initial state, the adhesive plate is in a horizontal state under the elastic hinge, and under the elastic action of the spring, the upper slider makes the position of the upper pressure plate lower than the position of the upper clamping rod, and the lower slider makes the position of the lower pressure plate higher than the position of the lower clamping rod;

[0012] A turning transmission member is also commonly arranged between the sliding block, the installation box and the adhesive plate.

[0013] The flip transmission member includes a pull wire and a guide pulley, both ends of the pull wire are respectively fixedly connected to the slider and the adhesive plate and are stretched straight, the installation box is fixedly installed on the guide pulley, the pull wire on the upper side passes around the guide pulley from the bottom, and the pull wire on the lower side passes around the guide pulley from the top.

[0014] The driving platform includes a first transverse driving device, which is transmission-connected to a reciprocating frame, and an upper pneumatic plate and a lower pneumatic plate are respectively installed on the upper and lower sides of the reciprocating frame. The upper pneumatic plate is fixedly connected to the feeding strip on the upper side, and the lower pneumatic plate is fixedly connected to the feeding strip on the lower side.

[0015] The first transverse driving device may be an electric or pneumatic telescopic device.

[0016] The suction nozzle feeding mechanism includes a turntable, a strip frame and a pneumatic clamping head. The turntable is fixedly mounted on the welding nozzle platform, and the movable end of the turntable is fixedly mounted on the strip frame. There are two pneumatic clamping heads, which are respectively arranged at both ends of the strip frame. A second lateral driving device is arranged in the strip frame to drive the pneumatic clamping head to reciprocate.

[0017] The second transverse driving device may be an electric or pneumatic telescopic device.

[0018] The two feeding strips are movable structures and each includes a fixed strip and a movable strip. The two fixed strips are fixedly connected to the upper pneumatic plate and the lower pneumatic plate respectively. The movable strip is located on a side close to the storage rack. The movable strip is provided with a vertical plate. The vertical plate is provided with a vertical positioning groove. The movable strip is provided with a mounting block. The mounting block is provided with a first positioning slide bar corresponding to the vertical positioning groove. The opening parts are respectively fixedly mounted on the two movable strips.

[0019] The welding nozzle platform is provided with compensation rails arranged side by side up and down, the length of the compensation rails is equal to the spacing between the welding nozzle stations, the compensation rails are composed of a first horizontal rail, a transition rail and a second horizontal rail, the second horizontal rail is located on a side close to the storage rack, and the mounting block is also equipped with a second positioning slide rod inserted into the compensation rail;

[0020] The position of the second horizontal track of the upper compensating guide rail is higher than the position of the first horizontal track, the position of the second horizontal track of the lower compensating guide rail is lower than the position of the first horizontal track, and the height difference between the first horizontal track and the second horizontal track is the height difference between the pressing plate and the clamping rod;

[0021] A square sleeve is fixedly arranged at the bottom of the upper compensation guide rail, and a square rod is fixedly connected to the lower compensation guide rail. The square rod is vertically slidably connected to the welding nozzle platform and slidably inserted into the square sleeve;

[0022] The upper pneumatic plate is fixedly connected with an upper strip-shaped slide rail, and the upper strip-shaped slide rail matches the square sleeve; the lower pneumatic plate is fixedly connected with a lower strip-shaped slide rail, and the lower strip-shaped slide rail matches the square rod;

[0023] The square sleeve is provided with a first positioning block abutting against the upper and lower sides of the upper strip slide rail, and the square rod is provided with a second positioning block abutting against the upper and lower sides of the lower strip slide rail.

[0024] The technical solution of the present invention can complete the automatic welding of the nozzle of the suction spout bag, has a high degree of automation, and can effectively improve the production efficiency of the suction spout bag. At the same time, the opening component of the present invention uses a sticky plate to open the opening of the suction spout bag, which is different from the suction cup opening method of the prior art. It can overcome the problem of the suction cup negative pressure failure in the existing suction cup adsorption method that the suction cup cannot open the opening of the suction spout bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0026] Figure 1 The structure of the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of the nozzle feeding mechanism at A;

[0028] Figure 3 The structure of the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 4 It is a structural schematic diagram of the feeding mechanism of the first embodiment;

[0030] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of the opening part at B;

[0031] Figure 6 It is a schematic diagram of the opening component of the first embodiment clamping and opening the nozzle bag;

[0032] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0033] Figure 8 It is an enlarged schematic diagram of the structure at C of Example 2;

[0034] Fig. 9 It is an enlarged schematic diagram of the structure at D of Example 2;

[0035] The main component symbols are described as follows:

[0036] Vibrating feeder 100, welding nozzle platform 200, material storage rack 201, pneumatic suction nozzle 202, station rack 210, vertical bracket 211, welding nozzle station 212, pneumatic welding nozzle head 213, pneumatic clamping platform 214, driving platform 220, feeding strip 221, clamping rod 222, first transverse driving device 223, reciprocating frame 224, upper pneumatic plate 225, lower pneumatic plate 226, mounting box 230, slider 231, pressing plate 232, adhesive plate 233, spring 234, pulling wire 235, guide pulley 236, turntable 240, strip frame 241, pneumatic clamping head 242, second transverse driving device 243;

[0037] Fixed strip 300, movable strip 301, vertical plate 302, mounting block 303, first positioning slide bar 304, second positioning slide bar 305, compensation guide rail 310, first horizontal rail 311, transition rail 312, second horizontal rail 313, square sleeve 320, square rod 321, upper strip slide rail 330, lower strip slide rail 331, first positioning block 340, second positioning block 341. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0039] Embodiment 1, as Figures 1 to 6 The nozzle bag automatic nozzle welding machine shown includes a vibration feeding machine table 100 and a nozzle platform 200. The nozzle platform 200 is equipped with a feeding mechanism, a nozzle mechanism, a feeding mechanism and a nozzle feeding mechanism. The feeding mechanism includes a storage rack 201 and a pneumatic nozzle 202. The bottom of the storage rack 201 is an empty slot and is fixedly arranged at one end of the length direction of the nozzle platform 200. There are two pneumatic nozzles 202, and the two pneumatic nozzles 202 correspond to the bottom position of the storage rack 201 and are arranged along the width direction of the nozzle platform 200. The nozzle platform 200 is equipped with a station frame 210 located beside the storage rack 201 and extending along the length direction of the nozzle platform 200. The station frame 210 is divided into a plurality of nozzle stations 212 arranged equidistantly by a plurality of vertical brackets 211 perpendicular to the nozzle platform 200.

[0040] The welding nozzle mechanism includes a plurality of pneumatic welding nozzle heads 213, which are respectively mounted on the station frames 210 on the upper and lower sides corresponding to each welding nozzle station 212, and each pneumatic welding nozzle head 213 corresponds to the front end position of the nozzle bag. The welding nozzle mechanism also includes a pneumatic pressing platform 214, and each pneumatic pressing platform 214 corresponds to the rear end position of the nozzle bag.

[0041] The feeding mechanism is located between the work station frame 210 and the pneumatic pressing platform 214. The feeding mechanism includes a driving platform 220 and feeding strips 221 located at the upper and lower sides. The driving platform 220 is used to drive the feeding strips 221 at the upper and lower sides to reciprocate horizontally and drive the feeding strips 221 at the upper and lower sides to move closer and farther away from each other.

[0042] A plurality of groups of clamping rods 222 having the same spacing as the nozzle stations 212 are evenly spaced on the sides facing each other on the upper and lower feeding strips 221. The clamping rods 222 correspond to the bottom position of the material storage rack 201. Each group of clamping rods 222 has two clamping rods and are arranged along the length direction of the nozzle platform 200. The number of groups of clamping rods 222 is the same as the number of nozzle stations 212. The ends of the upper and lower feeding strips 221 close to the feeding mechanism are also commonly provided with opening parts. The spacing between the opening parts and an adjacent group of clamping rods 222 is the same as the spacing between the nozzle stations 212. The opening parts are used to open the front end of the nozzle bag.

[0043] The nozzle loading mechanism is located between the vibration loading platform 100 and the welding nozzle station 212 closest to the storage rack 201 .

[0044] In this embodiment, the vibration feeding machine 100 is an existing device, and the detailed structure is not introduced here, only the functional description is made. In this embodiment, it is used to send the suction nozzle in a specific direction, and the suction nozzle feeding mechanism is used to receive the suction nozzle sent by the vibration feeding machine 100, and transport the suction nozzle to the welding nozzle station 212 closest to the storage rack 201; at the same time, the pneumatic suction nozzle 202, the pneumatic welding nozzle head 213, and the pneumatic clamping platform 214 in this embodiment are all existing cylinder brake equipment, and the driving platform 220 is an existing device, which can control the order of actions through the PLC programming program. Its structure is not repeated here, and only the functional description is made;

[0045] In the initial state of this embodiment, Figures 1 to 5 As shown, when the device is used, the following steps are included:

[0046] Step S100: Check whether the circuit, PLC program and running status of the device are in a normal state, and use it after checking that there is no abnormality;

[0047] Step S200: manually stack the nozzle bags neatly with their opening sides facing the vibrating feeder 100 in the material storage rack 201, and the pneumatic nozzle 202 rises upward, passes through the empty slot at the bottom of the material storage rack 201 to absorb the bottom surface of the nozzle bag at the bottom, and moves downward to pull the nozzle bag out of the material storage rack 201;

[0048] Step S300: The driving platform 220 only drives the upper and lower feeding strips 221 to move horizontally toward the storage rack 201, so that the opening parts provided on the upper and lower feeding strips 221 move to the upper and lower sides of the nozzle bag sucked by the pneumatic nozzle 202. Since the pneumatic nozzle 202 is provided along the width direction of the nozzle platform 200, it will not hinder the opening parts from moving to the upper and lower sides of the nozzle bag sucked by the pneumatic nozzle 202.

[0049] Step S400: The driving platform 220 drives the upper and lower feeding strips 221 to approach each other, clamps the upper and lower sides of the nozzle bag adsorbed by the pneumatic nozzle 202 through the opening component, opens the opening of the nozzle bag, and releases the pneumatic nozzle 202;

[0050] Step S500: The nozzle bag is kept clamped and the opening is open, and the driving platform 220 drives the upper and lower feeding strips 221 to move horizontally back to their original positions, so that the nozzle bag clamped by the opening component and opened moves to the nozzle welding station 212 closest to the storage rack 201;

[0051] Step S600: The nozzle feeding mechanism feeds the nozzle into the nozzle bag with the opening opened, and the pneumatic pressing platform 214 presses the rear end of the nozzle bag to prevent it from loosening. The pneumatic welding nozzle heads 213 of all the welding nozzle stations 212 are close to each other, so that the opening side of the nozzle bag and the fed nozzle are fixed by heat welding. In this step, the action of the pneumatic pressing platform 214 can be slightly earlier than the action of starting the welding nozzle head 213.

[0052] Subsequently, the driving platform 220 drives the upper and lower feeding strips 221 away from each other, releases the clamping of the nozzle bag, and drives the upper and lower feeding strips 221 to move horizontally toward the storage rack 201 again by the driving platform 220, and repeats the actions of step S300 and step S400;

[0053] Step S700: the pneumatic welding nozzle heads 213 move away from each other and release, the pneumatic pressing platform 214 releases the pressing on the rear end of the nozzle bag, and the driving platform 220 repeats the action of step S500, so that the nozzle bag passing through the welding nozzle station 212 closest to the storage rack 201 can be transported to the next adjacent welding nozzle station 212 through the clamping rods 222 of the two feeding strips 221;

[0054] By repeating the above steps, the nozzle bags can be continuously fed through each nozzle station 212 for heat welding and fixing, and finally sent out by the clamping rods 222 at the rear ends of the two feeding strips 221 for collection.

[0055] The technical solution in this embodiment can complete the automatic nozzle welding of the nozzle bag, and the degree of automation is high.

[0056] As an explanation of the opening component in this embodiment, the nozzle welding machine in the prior art usually has suction cups arranged at the top and bottom to open the opening side of the nozzle bag, such as the existing publication number CN219686732U. However, based on the known technology, it is known that the suction cup uses the negative pressure principle for adsorption, and the nozzle bag itself is flexible. Therefore, when the suction cup is used to adsorb the upper and lower sides of the nozzle bag, it is easy to cause the negative pressure in the suction cup to fail due to the flexible material of the nozzle bag, resulting in the nozzle bag being unable to open and the nozzle being unable to be welded. This is a common problem during use. For this reason, in this embodiment, the opening component is specially designed, and the upper and lower sides of the nozzle bag are adhered to by adhesive plates arranged at the top and bottom, thereby avoiding the common problems existing in the prior art. The opening component specifically has the following structure, such as Figures 4 to 6 As shown:

[0057] The opening component includes a mounting box 230, a slider 231, a pressing plate 232 and an adhesive plate 233. There are two mounting boxes 230 and they are respectively fixed to the sides facing the feeding strips 221 on the upper and lower sides. There are two sliders 231 and the two sliders 231 are respectively slidably mounted on the two mounting boxes 230 and elastically connected through springs 234. There are two pressing plates 232 and they are respectively fixed to the sides facing the two sliders 231. There are two adhesive plates 233 and the two adhesive plates 233 are respectively elastically hinged to the sides of the two pressing plates 232 facing the welding nozzle station 212.

[0058] In the initial state, the adhesive plate 233 is in a horizontal state under the elastic hinge, and under the elastic action of the spring 234, the upper slider 231 makes the position of the upper pressure plate 232 lower than the position of the upper clamping rod 222, and the lower slider 231 makes the position of the lower pressure plate 232 higher than the position of the lower clamping rod 222;

[0059] A flip transmission component is also commonly provided between the slider 231, the installation box 230 and the adhesive plate 233. The flip transmission component includes a pull wire 235 and a guide pulley 236. The two ends of the pull wire 235 are respectively fixedly connected to the slider 231 and the adhesive plate 233 and are stretched straight. The installation box 230 is fixedly installed on the guide pulley 236. The upper pull wire 235 passes around the guide pulley 236 from the bottom, and the lower pull wire 235 passes around the guide pulley 236 from the top.

[0060] by Figure 6 As an example, in the process of step S400, the upper and lower feeding strips 221 are firstly moved closer to each other, so that the two pressing plates 232 of the opening part are moved closer to each other, until the two pressing plates 232 just clamp the upper and lower surfaces of the nozzle bag respectively. Figure 6 In the middle diagram shown, the adhesive plate 233 also just sticks the upper and lower surfaces of the nozzle bag;

[0061] Because under the elastic action of spring 234, the upper slider 231 makes the position of the upper pressure plate 232 lower than the position of the upper clamping rod 222, and the lower slider 231 makes the position of the lower pressure plate 232 higher than the position of the lower clamping rod 222. Therefore, the upper and lower feeding strips 221 will continue to approach each other so that the clamping rods 222 can approach each other and clamp each other. At this time, the abutment and extrusion between the two pressure plates 232 will cause the upper slider 231 to compress the spring 234 and move upward, and the lower slider 231 to compress the spring 234 and move downward. Since the guide pulley 236 is fixed to the installation box 230, during the movement of the slider 231, the abutment of the guide pulley 236 makes the pull wire 235 bend, and overcome the elastic hinge force between the sticking plate 233 and the pressure plate 232, so that the sticking plate 233 is turned over, and the pull wire 235 will continue to be tightened under the elastic force. Figure 6 In the right side diagram shown, the upper adhesive plate 233 is turned upward and the lower adhesive plate 233 is turned downward, thereby opening the mouthpiece bag;

[0062] In this way, the opening component can compress and open the nozzle bag delivered by the pneumatic nozzle 202 and send it to the welding nozzle station 212 closest to the storage rack 201. The problem of the nozzle bag being unable to open will not occur, which greatly reduces the production defect rate.

[0063] In step S600, the driving platform 220 drives the upper and lower feeding strips 221 away from each other. Figure 6 In the sequential action from right to left, the sticking plate 233 will first return to the horizontal state, and then separate from the upper and lower surfaces of the nozzle bag under the pulling force of the upper and lower feeding strips 221 moving away from each other.

[0064] As a further description of the driving platform 220 and the nozzle loading mechanism in this embodiment, Figures 1 to 4 As shown, the driving platform 220 includes a first transverse driving device 223, the first transverse driving device 223 is drivingly connected to a reciprocating frame 224, and an upper pneumatic plate 225 and a lower pneumatic plate 226 are respectively installed on the upper and lower sides of the reciprocating frame 224, the upper pneumatic plate 225 is fixedly connected to the upper feeding strip plate 221, and the lower pneumatic plate 226 is fixedly connected to the lower feeding strip plate 221;

[0065] The suction nozzle feeding mechanism includes a turntable 240, a strip frame 241 and a pneumatic clamping head 242. The turntable 240 is fixedly installed on the welding nozzle platform 200. The movable end of the turntable 240 is fixedly installed on the strip frame 241. There are two pneumatic clamping heads 242, which are respectively arranged at both ends of the strip frame 241. A second horizontal driving device 243 is arranged in the strip frame 241 to drive the pneumatic clamping head 242 to reciprocate.

[0066] In this embodiment, the first transverse driving device 223 may be an electric or pneumatic telescopic device, and the second transverse driving device 243 may be an electric or pneumatic telescopic device.

[0067] like Figure 3 and Figure 4 As shown, the first transverse driving device 223 can drive the reciprocating frame 224 to reciprocate transversely, and the upper pneumatic plate 225 and the lower pneumatic plate 226 are controlled by pneumatic cylinders, so that the driving platform 220 can effectively make the upper and lower feeding strips 221 to reciprocate horizontally and move closer to and away from each other;

[0068] like Figure 1 and Figure 2 As shown, the turntable 240 rotates 180° at a time, so that the strip frame 241 can rotate. In the specific operation of the suction nozzle feeding mechanism, the pneumatic clamping head 242 facing the vibration feeding machine 100 is in an unfolded state, and the pneumatic clamping head 242 is sent to the discharge end of the vibration feeding machine 100 by the second transverse driving device 243, and then the pneumatic clamping head 242 recovers and clamps the suction nozzle transmitted by the vibration feeding machine. After the suction nozzle is clamped, the pneumatic clamping head 242 retreats;

[0069] Synchronously with the above-mentioned action, the second lateral driving device 243 drives the pneumatic clamping head 242 facing the welding nozzle station 212 toward the welding nozzle station, and then the clamped nozzle is sent into the nozzle bag with the opening opened. After the nozzle is welded, the pneumatic clamping head 242 unfolds, releases the nozzle and retreats;

[0070] This enables continuous nozzle loading.

[0071] Embodiment 2 is a further improvement made on the basis of Embodiment 1. Figures 7 to 9 As shown, the two feeding strips 221 are movable structures and each includes a fixed strip 300 and a movable strip 301. The two fixed strips 300 are fixedly connected to the upper pneumatic plate 225 and the lower pneumatic plate 226 respectively. The movable strip 301 is located on a side close to the storage rack 201. The movable strip 301 is provided with a vertical plate 302. The vertical plate 302 is provided with a vertical positioning groove. The movable strip 301 is provided with a mounting block 303. The mounting block 303 is provided with a first positioning slide bar 304 corresponding to the vertical positioning groove. The opening parts are respectively installed and fixed to the two movable strips 301;

[0072] The welding nozzle platform 200 is provided with a compensation rail 310 arranged side by side up and down, the length of the compensation rail 310 is equal to the distance between the welding nozzle stations 212, the compensation rail 310 is composed of a first horizontal rail 311, a transition rail 312 and a second horizontal rail 313, the second horizontal rail 313 is located on a side close to the storage rack 201, and the mounting block 303 is also equipped with a second positioning slide bar 305 inserted into the compensation rail 310;

[0073] The position of the second horizontal track 313 of the upper compensation rail 310 is higher than the position of the first horizontal track 311, and the position of the second horizontal track 313 of the lower compensation rail 310 is lower than the position of the first horizontal track 311. The height difference between the first horizontal track 311 and the second horizontal track 313 is the height difference between the pressing plate 232 and the clamping rod 222.

[0074] A square sleeve 320 is fixedly arranged at the bottom of the upper compensation rail 310, and a square rod 321 is fixedly connected to the lower compensation rail 310. The square rod 321 is vertically slidably connected to the welding nozzle platform 200 and slidably inserted into the square sleeve 320;

[0075] The upper pneumatic plate 225 is fixedly connected with an upper bar-shaped slide rail 330, which matches the square sleeve 320, and the lower pneumatic plate 226 is fixedly connected with a lower bar-shaped slide rail 331, which matches the square rod 321;

[0076] The square sleeve 320 is provided with a first positioning block 340 abutting against the upper and lower sides of the upper bar slide rail 330 , and the square rod 321 is provided with a second positioning block 341 abutting against the upper and lower sides of the lower bar slide rail 331 .

[0077] The improvement in this embodiment is that if the distance compensation is not performed, as can be seen from the aforementioned principle, the adhesive plate 233 will be turned over during the process of the opening component clamping the nozzle bag adsorbed by the pneumatic nozzle 202 in step S200. Since the pneumatic nozzle 202 adsorbs the nozzle bag, the lower adhesive plate 233 is easy to turn over and detach from the lower side of the nozzle bag, resulting in poor opening of the nozzle bag. At the same time, when the nozzle bag is adsorbed by the pneumatic nozzle 202, the nozzle bag is easy to be damaged due to the turning and pulling of the adhesive plate 233.

[0078] In Example 2, the upper compensation guide rail 310 and the lower compensation guide rail 310 are sleeved by means of a square sleeve 320 and a square rod 321, so that the upper and lower compensation guide rails 310 can move up and down relative to each other, and at the same time, the square rod 321 and the welding nozzle platform 200 are vertically slidably positioned, so that the upper and lower compensation guide rails 310 cannot move laterally, and the square sleeve 320 is provided with a first positioning block 340 abutting against the upper and lower sides of the upper strip slide rail 330, and the square rod 321 is provided with a second positioning block 341 abutting against the upper and lower sides of the lower strip slide rail 331, so that the upper compensation guide rail 310 and the upper pneumatic plate 225 can be positioned so as to move up and down synchronously, and the lower compensation guide rail 310 and the lower pneumatic plate 226 can be positioned so as to move up and down synchronously;

[0079] In step S300, when the upper and lower feeding strips 221 move horizontally toward the storage rack 201, the upper strip slide rail 330 moves horizontally relative to the square sleeve 320, and the upper fixed strip 300 pushes the upper movable strip 301 to move horizontally. The second positioning slide bar 305 provided on the mounting block 303 of the movable strip 301 moves along the upper compensation guide rail 310, and enters the second horizontal rail 313 from the first horizontal rail 311 through the transition rail 312, so that the upper movable strip 301 rises to a height of the pressing plate 23 relative to the upper fixed strip 300. 2 and the clamping rod 222, and similarly, the lower movable strip 301 will be lowered relative to the lower fixed strip 300 by the height difference between the pressing plate 232 and the clamping rod 222, so that the height difference between the pressing plate 232 and the clamping rod 222 can be matched and compensated, so that during step S300, the pressing plate 232 and the clamping rod 222 maintain the same height, and when the nozzle bag adsorbed by the pneumatic nozzle 202 is clamped in step S400, the two pressing plates 232 will not abut and squeeze, so as to avoid the situation that the sticking plate 233 turns over, and the upper and lower surfaces of the nozzle bag are stably adhered;

[0080] When the upper and lower feeding strips 221 are driven to move horizontally back in step S500, similarly, the second positioning slide bar 305 provided on the mounting block 303 of the movable strip 301 will enter the first horizontal track 311 from the second horizontal track 313 through the transition track 312. At this time, the upper movable strip 301 will descend and return relative to the upper fixed strip 300, and the lower movable strip 301 will rise and return relative to the lower fixed strip 300. During this process, the two pressure plates 232 of the opening component will abut and squeeze again, thereby causing the upper and lower adhesive plates 233 to flip over, thereby realizing the opening of the nozzle bag.

[0081] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. Automatic nozzle welding machine for nozzle bags, including a vibration feeding machine and a nozzle platform, the nozzle platform is equipped with a feeding mechanism, a nozzle mechanism, a feeding mechanism and a nozzle feeding mechanism, the feeding mechanism includes a storage rack and a pneumatic nozzle, the bottom of the storage rack is an empty slot and is fixedly arranged at one end of the length direction of the nozzle platform, there are two pneumatic nozzles, the two pneumatic nozzles correspond to the bottom position of the storage rack and are arranged along the width direction of the nozzle platform, characterized in that: The welding nozzle platform is equipped with a station frame located beside the material storage rack and extending along the length direction of the welding nozzle platform, and the station frame is divided into a plurality of welding nozzle stations arranged at equal distances by a plurality of vertical brackets perpendicular to the welding nozzle platform; The welding nozzle mechanism includes a plurality of pneumatic welding nozzle heads, which are respectively installed on the station frames on the upper and lower sides corresponding to each welding nozzle station, and each of the pneumatic welding nozzle heads corresponds to the front end position of the nozzle bag. The welding nozzle mechanism also includes a pneumatic pressing platform, and the pneumatic pressing platform corresponds to the rear end position of the nozzle bag. The feeding mechanism is located between the workstation frame and the pneumatic pressing platform, and includes a driving platform and feeding strips located at upper and lower sides, and the driving platform is used to drive the feeding strips at the upper and lower sides to reciprocate laterally and drive the feeding strips at the upper and lower sides to move closer and farther away from each other; A plurality of groups of clamping rods having the same spacing as the nozzle stations are equidistantly arranged on the sides facing each other on the upper and lower sides of the feeding strips, the clamping rods corresponding to the bottom position of the storage rack, each group of the clamping rods has two clamping rods and are arranged along the length direction of the nozzle platform, the number of the groups of the clamping rods is the same as the number of the nozzle stations, the upper and lower sides of the feeding strips are also commonly provided with an opening component at one end close to the feeding mechanism, the spacing between the opening component and an adjacent group of the clamping rods is the same as the spacing of the nozzle stations, and the opening component is used to open the front end of the nozzle bag; The nozzle feeding mechanism is located between the vibration feeding machine platform and the welding nozzle station closest to the storage rack; The opening component includes a mounting box, a slider, a pressure plate and a sticking plate. The mounting boxes are two in number and are respectively fixed to the sides facing the feeding strips on the upper and lower sides. The sliders are two in number and are slidably mounted on the two mounting boxes and elastically connected by springs. The pressure plates are two in number and are respectively fixed to the sides facing the two sliders. The sticking plates are two in number and are elastically hinged to the sides of the two pressure plates facing the welding nozzle station. In the initial state, the adhesive plate is in a horizontal state under the elastic hinge, and under the elastic action of the spring, the upper slider makes the position of the upper pressure plate lower than the position of the upper clamping rod, and the lower slider makes the position of the lower pressure plate higher than the position of the lower clamping rod; A turning transmission member is also commonly arranged between the sliding block, the installation box and the adhesive plate.

2. The automatic nozzle welding machine for nozzle bags according to claim 1, characterized in that: The flip transmission member includes a pull wire and a guide pulley, both ends of the pull wire are respectively fixedly connected to the slider and the adhesive plate and are stretched straight, the installation box is fixedly installed on the guide pulley, the pull wire on the upper side passes around the guide pulley from the bottom, and the pull wire on the lower side passes around the guide pulley from the top.

3. The automatic nozzle welding machine for nozzle bags according to claim 2, characterized in that: The driving platform includes a first transverse driving device, which is transmission-connected to a reciprocating frame, and an upper pneumatic plate and a lower pneumatic plate are respectively installed on the upper and lower sides of the reciprocating frame. The upper pneumatic plate is fixedly connected to the feeding strip on the upper side, and the lower pneumatic plate is fixedly connected to the feeding strip on the lower side.

4. The automatic nozzle welding machine for nozzle bags according to claim 3, characterized in that: The first transverse driving device may be an electric or pneumatic telescopic device.

5. The automatic nozzle welding machine for nozzle bags according to claim 4, characterized in that: The suction nozzle feeding mechanism includes a turntable, a strip frame and a pneumatic clamping head. The turntable is fixedly mounted on the welding nozzle platform, and the movable end of the turntable is fixedly mounted on the strip frame. There are two pneumatic clamping heads, which are respectively arranged at both ends of the strip frame. A second lateral driving device is arranged in the strip frame to drive the pneumatic clamping head to reciprocate.

6. The automatic nozzle welding machine for nozzle bags according to claim 5, characterized in that: The second transverse driving device may be an electric or pneumatic telescopic device.

7. The automatic nozzle welding machine for nozzle bags according to claim 6, characterized in that: The two feeding strips are movable structures and each includes a fixed strip and a movable strip. The two fixed strips are fixedly connected to the upper pneumatic plate and the lower pneumatic plate respectively. The movable strip is located on a side close to the storage rack. The movable strip is provided with a vertical plate. The vertical plate is provided with a vertical positioning groove. The movable strip is provided with a mounting block. The mounting block is provided with a first positioning slide bar corresponding to the vertical positioning groove. The opening parts are respectively fixedly mounted on the two movable strips. The welding nozzle platform is provided with compensation rails arranged side by side up and down, the length of the compensation rails is equal to the spacing between the welding nozzle stations, the compensation rails are composed of a first horizontal rail, a transition rail and a second horizontal rail, the second horizontal rail is located on a side close to the storage rack, and the mounting block is also equipped with a second positioning slide rod inserted into the compensation rail; The position of the second horizontal track of the upper compensating guide rail is higher than the position of the first horizontal track, the position of the second horizontal track of the lower compensating guide rail is lower than the position of the first horizontal track, and the height difference between the first horizontal track and the second horizontal track is the height difference between the pressing plate and the clamping rod; A square sleeve is fixedly arranged at the bottom of the upper compensation guide rail, and a square rod is fixedly connected to the lower compensation guide rail. The square rod is vertically slidably connected to the welding nozzle platform and slidably inserted into the square sleeve; The upper pneumatic plate is fixedly connected with an upper strip-shaped slide rail, and the upper strip-shaped slide rail matches the square sleeve; the lower pneumatic plate is fixedly connected with a lower strip-shaped slide rail, and the lower strip-shaped slide rail matches the square rod; The square sleeve is provided with a first positioning block abutting against the upper and lower sides of the upper strip slide rail, and the square rod is provided with a second positioning block abutting against the upper and lower sides of the lower strip slide rail.

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