Bottom sealer for stand-up pouches

Abstract

The utility model discloses a bottom welding nozzle machine of self -supporting bag, including frame base, bottom nozzle feeding mechanism, bag feeding mechanism, open bag and bag mechanism, pre -press shaping mechanism, hot -press welding mechanism, finished product blanking mechanism and multistation rotary table mechanism, multistation rotary table mechanism is located in the middle part of frame base, and bottom nozzle feeding mechanism inputs bottom nozzle to multistation rotary table mechanism, and bag feeding mechanism is grabbed to open bag and bag mechanism on the bottom nozzle feeding mechanism one by one, and open bag and bag mechanism unroll the lower end of self -supporting bag and suit on the bottom nozzle of multistation rotary table mechanism, and pre -press shaping mechanism carries out pre -press, and hot -press welding mechanism welds bottom nozzle on self -supporting bag, and finished product blanking mechanism exports finished product. The bottom welding nozzle machine of self -supporting bag is used for the welding forming of bottom nozzle of self -supporting bag, and the automatic production is started from feeding, and the rotary table processing of carousel type saves the space, and provides the automatic processing flow for the production of self -supporting bag, reduces manual labor, and improves the welding efficiency and accuracy of bottom nozzle.

Description

Technical Field

[0001] This utility model relates to the technical field of stand-up pouches, and more particularly to a bottom nozzle welding machine for stand-up pouches. Background Technology

[0002] Stand-up pouches are flexible packaging bags with a horizontal support structure at the bottom, allowing them to stand upright without external support. They are widely used in beverages, food, and daily chemical products. Stand-up pouches are often made of composite materials, providing sealing, moisture protection, and freshness preservation. Some products can have an added oxygen barrier layer to extend shelf life. Currently, stand-up pouches with a bottom spout support structure are suitable for packaging juices, pulps, or cosmetics. The silicone opening inside the spout forms a self-sealing structure. The stand-up pouch itself has an aluminum layer with antioxidant properties, providing high barrier effects. Compared to conventional plastic bottles and bags, which do not block oxygen or light, stand-up pouches offer superior packaging performance. Utility Model Content

[0003] One objective of this invention is to provide a bottom welding machine for stand-up pouches, with a fully automated production process that involves placing the bottom nozzle into the stand-up pouch for heat welding. The machine features an ingenious structure and high output.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A bottom nozzle welding machine for stand-up pouches includes a frame base, a bottom nozzle feeding mechanism, a bag feeding mechanism, a bag opening and bag fitting mechanism, a pre-compression and shaping mechanism, a hot-press welding mechanism, a finished product unloading mechanism, and a multi-station turntable mechanism. The multi-station turntable mechanism is located in the middle of the frame base. The bottom nozzle feeding mechanism feeds the bottom nozzles onto the multi-station turntable mechanism. The bag feeding mechanism picks up stacked stand-up pouches one by one and places them onto the bag opening and bag fitting mechanism. The bag opening and bag fitting mechanism unfolds the lower end of the stand-up pouch and fits it onto the bottom nozzle of the multi-station turntable mechanism. The pre-compression and shaping mechanism pre-compresses the position of the bottom nozzle and the stand-up pouch. The hot-press welding mechanism welds the bottom nozzle onto the stand-up pouch. The finished product unloading mechanism outputs the hot-welded finished product.

[0006] As a preferred technical solution, the bottom nozzle feeding mechanism includes a vibratory plate, a linear vibrator, and a bottom nozzle translation cylinder. The output end of the vibratory plate is connected to the input end of the linear vibrator. A bottom nozzle cylinder support is provided on one side of the output end of the linear vibrator. The bottom nozzle translation cylinder is installed on the upper end of the bottom nozzle cylinder support. The driving end of the bottom nozzle translation cylinder is connected to a bottom nozzle vertical translation cylinder. The driving end of the bottom nozzle vertical translation cylinder is connected to a bottom nozzle suction rod.

[0007] As a preferred technical solution, the bag feeding mechanism includes a bag feeding rack, a bag feeding fixing frame is installed at the upper end of the bag feeding rack, a bag width limiting plate is installed on the inner side of the bag feeding fixing frame, a bag width adjusting screw and a light shaft are provided at the rear end of the bag feeding fixing frame, the lower end of the bag width limiting plate slides left and right along the light shaft, the bag width adjusting screw is threadedly connected to a nut below the bag width limiting plate, a handwheel is connected to one end of the bag width adjusting screw, and a bag feeding rear limiting seat is installed at the rear end of the bag feeding fixing frame.

[0008] As a preferred technical solution, a bag-suction cylinder is provided below the bag feeding rack. A bag-suction nozzle is vertically mounted on the drive end of the bag-suction cylinder. A bag-suction swing arm box is provided on the front side of the bag feeding rack. A swing shaft and a swing arm are rotatably connected to the bag-suction swing arm box. The swing shaft and the swing arm are connected to a swing frame. A bag-suction swing cylinder is installed inside the swing frame. A bag-suction fixing block is fixed on the outside of the swing frame. A bag-suction movable block is connected to the drive end of the bag-suction swing cylinder. The bag-suction fixing block and the bag-suction movable block together clamp the self-standing bag.

[0009] As a preferred technical solution, the bag opening and bagging mechanism includes a bag-filling vertical movement linear module. A bag opening cylinder is connected to the drive end of the bag-filling vertical movement linear module. Both drive ends of the bag opening cylinder are connected to bag opening arms, and a bag opening suction nozzle is installed at the front end of the bag opening arm.

[0010] As a preferred technical solution, the pre-forming mechanism includes a pre-forming bracket, a pre-forming cylinder is installed at the upper end of the pre-forming bracket, and a pre-forming pressure head is vertically connected to the drive end of the pre-forming cylinder.

[0011] As a preferred technical solution, the hot-press welding mechanism includes a hot-press support, a hot-press cylinder is installed at the upper end of the hot-press support, a hot-press head is vertically connected to the drive end of the hot-press cylinder, and a heating tube is installed inside the hot-press head.

[0012] As a preferred technical solution, the finished product unloading mechanism includes an unloading bracket and an unloading conveyor belt. An unloading transverse movement cylinder is installed at the upper end of the unloading bracket. The driving end of the unloading transverse movement cylinder is connected to an unloading connecting plate. An unloading vertical movement cylinder is connected at the upper end of the unloading connecting plate. An unloading suction plate is connected at the driving end of the unloading vertical movement cylinder. Unloading suction nozzles are distributed on the unloading suction plate.

[0013] As a preferred technical solution, the multi-station turntable mechanism includes a turntable and a turntable motor. The turntable motor is located below the turntable and controls the rotation of the turntable. Bottom nozzle fixtures are distributed along the edge of the turntable.

[0014] The beneficial effects of this utility model are as follows: It provides a bottom welding machine for stand-up pouches, which is used to weld and form the bottom nozzle of stand-up pouches. The production is automated from the feeding stage. The turntable processing saves space, provides an automated processing flow for the production of stand-up pouches, reduces manual labor, and improves the welding efficiency and accuracy of the bottom nozzle. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a bottom welding nozzle machine for a stand-up pouch as described in the embodiment;

[0017] Figure 2 This is a schematic diagram of the bottom nozzle feeding mechanism described in the embodiment;

[0018] Figure 3 This is a schematic diagram of the bag supply mechanism described in the embodiment;

[0019] Figure 4 This is a schematic diagram of the bag feeding rack described in the embodiment;

[0020] Figure 5 This is a schematic diagram of the bag supply swing arm box described in the embodiment;

[0021] Figure 6 This is a schematic diagram of the bag opening and bagging mechanism described in the embodiment;

[0022] Figure 7 This is a structural diagram of the combination of the pre-pressing and shaping mechanism and the hot-pressing welding mechanism described in the embodiment;

[0023] Figure 8 This is a schematic diagram of the finished product feeding mechanism described in the embodiment;

[0024] Figure 9 This is a schematic diagram of the first structure of the multi-station turntable mechanism described in the embodiment;

[0025] Figure 10 This is a schematic diagram of the first structure of the multi-station turntable mechanism described in the embodiment;

[0026] Figure 11 This is a partial structural diagram of the stand-up pouch described in the embodiment.

[0027] Figures 1 to 11 middle:

[0028] 1. Rack base; 101. Control panel; 102. Stand-up pouch; 103. Bottom spout;

[0029] 2. Bottom nozzle feeding mechanism; 201. Vibratory feeder; 202. Linear vibrator; 203. Bottom nozzle translation cylinder; 204. Bottom nozzle cylinder support; 205. Bottom nozzle vertical translation cylinder; 206. Bottom nozzle suction rod;

[0030] 3. Bag feeding mechanism; 301. Bag feeding rack; 302. Bag feeding fixing frame; 303. Bag width limiting plate; 304. Bag width adjusting screw; 305. Optical shaft; 306. Handwheel; 307. Rear limit seat for bag feeding; 308. Bag suction cylinder; 309. Bag suction nozzle; 310. Bag feeding swing arm box; 311. Swing shaft; 312. Swing arm; 313. Swing frame; 314. Bag feeding swing cylinder; 315. Bag feeding fixing block; 316. Bag feeding movable block;

[0031] 4. Bag opening and bagging mechanism; 401. Bagging vertical movement linear module; 402. Bag opening cylinder; 403. Bag opening arm; 404. Bag opening nozzle;

[0032] 5. Pre-compression and shaping mechanism; 501. Pre-forming bracket; 502. Pre-forming cylinder; 503. Pre-forming pressure head;

[0033] 6. Hot pressing welding mechanism; 601. Hot pressing support; 602. Hot pressing cylinder; 603. Hot pressing head; 604. Heating tube;

[0034] 7. Finished product unloading mechanism; 701. Unloading bracket; 702. Unloading conveyor belt; 703. Unloading transverse movement cylinder; 704. Unloading connecting plate; 705. Unloading vertical movement cylinder; 706. Unloading suction plate; 707. Unloading suction nozzle;

[0035] 8. Multi-station turntable mechanism; 801. Turntable; 802. Turntable motor; 803. Bottom nozzle fixture. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 11As shown in this embodiment, a bottom nozzle welding machine for stand-up pouches includes a frame base 1, a bottom nozzle feeding mechanism 2, a bag feeding mechanism 3, a bag opening and bag fitting mechanism 4, a pre-compression shaping mechanism 5, a hot-press welding mechanism 6, a finished product unloading mechanism 7, and a multi-station turntable mechanism 8. The multi-station turntable mechanism 8 is located in the middle of the frame base 1. The bottom nozzle feeding mechanism 2 feeds the bottom nozzles 103 onto the multi-station turntable mechanism 8. The bag feeding mechanism 3 picks up stacked stand-up pouches 102 one by one and feeds them onto the bag opening and bag fitting mechanism 4. The bag opening and bag fitting mechanism 4 unfolds the lower end of the stand-up pouch 102 and fits it onto the bottom nozzle 103 of the multi-station turntable mechanism 8. The pre-compression shaping mechanism 5 pre-compresses the positions of the bottom nozzle 103 and the stand-up pouch 102. The hot-press welding mechanism 6 welds the bottom nozzle 103 onto the stand-up pouch 102. The finished product unloading mechanism 7 outputs the hot-welded finished product.

[0038] The specifications of the bottom nozzle 103 are mainly customized to fit the standards currently used in the market. The self-standing bags 102 produced are mostly used in the packaging of fruit pulp and cosmetics. In the automated structure, the sealing strength of the bottom nozzle 103 matches the size of the self-standing bag 102. The inner mold material of the self-standing bag 102 is the same as that of the bottom nozzle 103, which can be PE material.

[0039] The bottom nozzle feeding mechanism 2 includes a vibratory plate 201, a linear vibrator 202, and a bottom nozzle translation cylinder 203. The output end of the vibratory plate 201 is connected to the input end of the linear vibrator 202. A bottom nozzle cylinder support 204 is provided on one side of the output end of the linear vibrator 202. The bottom nozzle translation cylinder 203 is installed on the upper end of the bottom nozzle cylinder support 204. The driving end of the bottom nozzle translation cylinder 203 is connected to a bottom nozzle vertical movement cylinder 205. The driving end of the bottom nozzle vertical movement cylinder 205 is connected to a bottom nozzle suction rod 206.

[0040] The vibratory plate 201 feeds the bottom nozzle 103 into the linear vibrator 202, and the linear vibrator 202 outputs the bottom nozzles 103 one by one. The bottom nozzle translation cylinder 203 and the bottom nozzle vertical translation cylinder 205 work together to control the front end of the bottom nozzle suction rod 206 to suction the bottom nozzle 103 and move it into the multi-station turntable mechanism 8.

[0041] The multi-station turntable mechanism 8 includes a turntable 801 and a turntable motor 802. The turntable motor 802 is located below the turntable 801 and controls the rotation of the turntable 801. Bottom nozzle fixtures 803 are distributed along the edge of the turntable 801.

[0042] The bottom nozzle 103 fed from the bottom nozzle feeding mechanism 2 will be placed and fixed inside the bottom nozzle fixture 803. The turntable motor 802 controls the turntable 801 to rotate clockwise in the horizontal direction from below. The bottom nozzle fixture 803 drives the bottom nozzle 103 to move to various mechanisms in the clockwise direction.

[0043] The bag feeding mechanism 3 includes a bag feeding rack 301. A bag feeding fixing frame 302 is installed at the upper end of the bag feeding rack 301. A bag width limiting plate 303 is installed on the inner side of the bag feeding fixing frame 302. A bag width adjusting screw 304 and a light shaft 305 are provided at the rear end of the bag feeding fixing frame 302. The lower end of the bag width limiting plate 303 slides left and right along the light shaft 305. The bag width adjusting screw 304 is threadedly connected to a nut below the bag width limiting plate 303. A handwheel 306 is connected to one end of the bag width adjusting screw 304. A bag feeding rear limiting seat 307 is installed at the rear end of the bag feeding fixing frame 302. Moreover, the lower part of the bag feeding rack 301... A suction cylinder 308 is provided, and a suction nozzle 309 is installed vertically upward on the drive end of the suction cylinder 308. A bag feeding swing arm box 310 is provided on the front side of the bag feeding rack 301. A swing shaft 311 and a swing arm 312 are rotatably connected to the bag feeding swing arm box 310. The swing shaft 311 and the swing arm 312 are connected to a swing frame 313. A bag feeding swing cylinder 314 is installed inside the swing frame 313. A bag feeding fixing block 315 is fixed on the outside of the swing frame 313. A bag feeding movable block 316 is connected to the drive end of the bag feeding swing cylinder 314. The bag feeding fixing block 315 and the bag feeding movable block 316 together clamp the self-standing bag 102.

[0044] The stand-up pouches 102 are stacked flat and placed inside the bag supply frame 302. Their positions are limited on both sides by bag width limiting plates 303 and at the rear by a rear bag supply limiting seat 307. Depending on the width of the stand-up pouches 102, the handwheel 306 can be manually turned. Driven by the bag width adjusting screw 304, the bag width limiting plates 303 move laterally along the optical axis 305 to adapt to the current width of the stand-up pouches 102. The length of the stand-up pouches 102 can be controlled by adjusting the front and rear positions of the rear bag supply limiting seat 307. The direction is fixed by screws to adapt. When conveying the stand-up pouch 102, the suction cylinder 308 below controls the suction nozzle 309 to move upward, adsorbing the bottom stand-up pouch 102 downward and pulling it out from the middle of the bag supply fixing frame 302. Then, the swing arm 312 drives the swing frame 313 to approach the bag supply feeding frame 301. The bag supply fixing block 315 and the bag supply movable block 316 clamp the stand-up pouch 102. The direction of the stand-up pouch 102 is changed by swinging and sent into the bag opening and bag covering mechanism 4.

[0045] The bag opening and bagging mechanism 4 includes a bag-filling vertical movement linear module 401. A bag opening cylinder 402 is connected to the drive end of the bag opening vertical movement linear module 401. Both sides of the bag opening cylinder 402 are connected to bag opening arms 403. A bag opening suction nozzle 404 is installed at the front end of the bag opening arm 403.

[0046] The opening nozzles 404 on both sides respectively adsorb the two sides of the stand-up pouch 102. Under the action of the opening cylinder 402, the stand-up pouch 102 is unfolded. Then, the bag-fitting vertical movement linear module 401 controls the stand-up pouch 102 to move downward. The stand-up pouch 102 is fitted onto the bottom nozzle fixture 803 with the bottom nozzle 103. Then, the opening nozzles 404 release the stand-up pouch 102 and rise with the bag-fitting vertical movement linear module 401.

[0047] The pre-forming mechanism 5 includes a pre-forming bracket 501, a pre-forming cylinder 502 is mounted on the upper end of the pre-forming bracket 501, and a pre-forming pressure head 503 is vertically connected to the drive end of the pre-forming cylinder 502 downwards.

[0048] The preforming cylinder 502 controls the pressing head to move down, aligning the self-standing bag 102 with the bottom nozzle 103.

[0049] The hot press welding mechanism 6 includes a hot press support 601, a hot press cylinder 602 is installed at the upper end of the hot press support 601, a hot press head 603 is vertically connected to the drive end of the hot press cylinder 602, and a heating tube 604 is installed inside the hot press head 603.

[0050] The hot press cylinder 602 controls the hot press head 603 to press down on the stand-up pouch 102, while the heating tube 604 heats up to control the stand-up pouch 102 and the bottom nozzle 103 to heat shrink and form them into one piece.

[0051] The finished product unloading mechanism 7 includes an unloading bracket 701 and an unloading conveyor belt 702. An unloading transverse cylinder 703 is installed at the upper end of the unloading bracket 701. The drive end of the unloading transverse cylinder 703 is connected to an unloading connecting plate 704. An unloading vertical cylinder 705 is connected at the upper end of the unloading connecting plate 704. An unloading suction plate 706 is connected at the drive end of the unloading vertical cylinder 705. Unloading suction nozzles 707 are distributed on the unloading suction plate 706.

[0052] After welding, the stand-up pouch 102 is transferred to one side of the feeding bracket 701. The feeding horizontal movement cylinder 703 and the feeding vertical movement cylinder 705 jointly control the feeding suction plate 706 to approach the bottom nozzle fixture 803. The feeding suction nozzle 707 picks up the stand-up pouch 102 and then transfers it to the feeding conveyor belt 702 for discharge.

[0053] A control panel 101 is fixed on one side of the rack base 1 to set and control the aforementioned automation process.

[0054] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A bottom welding machine for stand-up pouches, characterized in that, The machine includes a frame base, a bottom nozzle feeding mechanism, a bag feeding mechanism, a bag opening and bagging mechanism, a pre-compression and shaping mechanism, a hot-press welding mechanism, a finished product unloading mechanism, and a multi-station turntable mechanism. The multi-station turntable mechanism is located in the middle of the frame base. The bottom nozzle feeding mechanism feeds the bottom nozzles onto the multi-station turntable mechanism. The bag feeding mechanism picks up stacked stand-up pouches one by one and feeds them onto the bag opening and bagging mechanism. The bag opening and bagging mechanism unfolds the bottom end of the stand-up pouch and fits it onto the bottom nozzle of the multi-station turntable mechanism. The pre-compression and shaping mechanism pre-compresses the position of the bottom nozzle and the stand-up pouch. The hot-press welding mechanism welds the bottom nozzle to the stand-up pouch. The finished product unloading mechanism outputs the hot-welded finished product.

2. The bottom welding nozzle machine for a stand-up pouch according to claim 1, characterized in that, The bottom nozzle feeding mechanism includes a vibratory plate, a linear vibrator, and a bottom nozzle translation cylinder. The output end of the vibratory plate is connected to the input end of the linear vibrator. A bottom nozzle cylinder support is provided on one side of the output end of the linear vibrator. The bottom nozzle translation cylinder is installed on the upper end of the bottom nozzle cylinder support. The driving end of the bottom nozzle translation cylinder is connected to a bottom nozzle vertical translation cylinder. The driving end of the bottom nozzle vertical translation cylinder is connected to a bottom nozzle suction rod.

3. The bottom welding nozzle machine for a stand-up pouch according to claim 1, characterized in that, The bag feeding mechanism includes a bag feeding frame, a bag feeding fixing frame is installed at the upper end of the bag feeding frame, a bag width limiting plate is installed on the inner side of the bag feeding fixing frame, a bag width adjusting screw and a light shaft are provided at the rear end of the bag feeding fixing frame, the lower end of the bag width limiting plate slides left and right along the light shaft, the bag width adjusting screw is threadedly connected to a nut below the bag width limiting plate, a handwheel is connected to one end of the bag width adjusting screw, and a bag feeding rear limiting seat is installed at the rear end of the bag feeding fixing frame.

4. The bottom welding nozzle machine for a stand-up pouch according to claim 3, characterized in that, A suction cylinder is installed below the bag feeding rack. A suction nozzle is installed vertically upward on the drive end of the suction cylinder. A bag feeding swing arm box is installed on the front side of the bag feeding rack. A swing shaft and a swing arm are rotatably connected to the bag feeding swing arm box. The swing shaft and the swing arm are connected to a swing frame. A bag feeding swing cylinder is installed inside the swing frame. A bag feeding fixing block is fixed on the outside of the swing frame. A bag feeding movable block is connected to the drive end of the bag feeding swing cylinder. The bag feeding fixing block and the bag feeding movable block together clamp the self-standing bag.

5. The bottom welding nozzle machine for a stand-up pouch according to claim 1, characterized in that, The bag opening and bagging mechanism includes a bag-filling vertical movement linear module. A bag opening cylinder is connected to the drive end of the bag-filling vertical movement linear module. Both drive ends of the bag opening cylinder are connected to bag opening arms. A bag opening suction nozzle is installed at the front end of the bag opening arm.

6. The bottom welding nozzle machine for a stand-up pouch according to claim 1, characterized in that, The pre-forming mechanism includes a pre-forming bracket, a pre-forming cylinder is installed at the upper end of the pre-forming bracket, and a pre-forming pressure head is vertically connected to the drive end of the pre-forming cylinder.

7. The bottom welding nozzle machine for a stand-up pouch according to claim 1, characterized in that, The hot-press welding mechanism includes a hot-press support, a hot-press cylinder is installed at the upper end of the hot-press support, a hot-press head is vertically connected to the drive end of the hot-press cylinder, and a heating tube is installed inside the hot-press head.

8. The bottom welding nozzle machine for a stand-up pouch according to claim 1, characterized in that, The finished product unloading mechanism includes an unloading bracket and an unloading conveyor belt. An unloading transverse movement cylinder is installed at the upper end of the unloading bracket. The driving end of the unloading transverse movement cylinder is connected to an unloading connecting plate. An unloading vertical movement cylinder is connected at the upper end of the unloading connecting plate. An unloading suction plate is connected at the driving end of the unloading vertical movement cylinder. Unloading suction nozzles are distributed on the unloading suction plate.

9. The bottom welding nozzle machine for a stand-up pouch according to claim 1, characterized in that, The multi-station turntable mechanism includes a turntable and a turntable motor. The turntable motor is located below the turntable and controls the rotation of the turntable. Bottom nozzle fixtures are distributed along the edge of the turntable.

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