A powder-liquid double chamber bag aluminum film welding production line

Abstract

The present invention relates to a powder-liquid double-chamber bag aluminum film welding production line, which mainly includes a frame, an aluminum film feeding device, an aluminum film welding device, a bag conveying device and a punching device, and also includes an aluminum film inflation device, the aluminum film welding device includes a top welding device and a side welding device arranged in sequence, wherein: the top welding device is used to weld the two opposite sides of the aluminum film parallel to the bag conveying direction, so that the aluminum film forms a cylindrical shape with closed two sides and front and back openings; the aluminum film inflation device is arranged between the bag body and the aluminum film, and the inflation port of the aluminum film inflation device extends to the entrance of the side welding device; the side welding device is used to weld the other two sides of the aluminum film, so that the aluminum film and the bag body form a closed chamber, and seal the inert gas filled by the aluminum film inflation device; the bag conveying device is used to continuously convey the bag body and the aluminum film. The present invention can continuously weld the aluminum film, realize the efficient and high-quality welding of the inflatable aluminum film, and has high production efficiency and good product quality as a whole.

Description

Technical Field

[0001] The invention relates to the technical field of powder-liquid double-chamber bag aluminum film welding, in particular to a powder-liquid double-chamber bag aluminum film welding production line. Background Art

[0002] The powder-liquid dual-chamber bag is based on an ordinary plastic infusion soft bag, which is separated into two independent closed chambers using virtual welding technology. One chamber encapsulates the powder and the other encapsulates the liquid. The powder chamber of the powder-liquid dual-chamber bag needs to be filled with powder medicine. The performance of the powder changes due to the influence of external factors such as ultraviolet rays. Therefore, an aluminum film must be attached to the powder chamber side for protection. In order to further protect the powder-liquid dual-chamber bag, an inert gas needs to be filled in the aluminum film.

[0003] Existing aluminum film welding equipment generally uses a positioning hole to punch a positioning hole at the tail of the bag body of the powder-liquid double chamber bag, and the bag body is positioned through the hanging pin hole. When welding the aluminum film, the hanging pin hole can be punched on the aluminum film, and the aluminum film can be positioned and transported in a similar way to the bag body. Since the continuous welding production efficiency of aluminum film welding is high, how to quickly inflate and weld the aluminum film to ensure the production efficiency and quality of the aluminum film is an urgent problem to be solved by technicians in this field. Summary of the invention

[0004] The purpose of the present invention is to provide a powder-liquid double-chamber bag aluminum film welding production line, which can continuously weld aluminum films and realize efficient and high-quality welding of inflatable aluminum films.

[0005] The above-mentioned invention object of the present invention is achieved through the following technical scheme: a powder-liquid double-chamber bag aluminum film welding production line, comprising a frame, an aluminum film feeding device, an aluminum film welding device, a bag conveying device and a punching device, and also comprising an aluminum film inflation device, the aluminum film welding device comprising a top welding device and a side welding device arranged in sequence, wherein:

[0006] The top welding device is used to weld two opposite sides of the aluminum film parallel to the bag conveying direction, so that the aluminum film forms a cylindrical shape with two sides closed and front and back open;

[0007] The aluminum film inflation device is arranged between the bag body and the aluminum film, and the inflation port of the aluminum film inflation device extends to the inlet of the side welding device;

[0008] The side welding device is used to weld the other two sides of the aluminum film so that the aluminum film and the bag body form a closed chamber and seal the inert gas filled by the aluminum film filling device;

[0009] The bag conveying device is used for continuously conveying the bag body and the aluminum film.

[0010] By adopting the above technical scheme, the top welding device can first weld the aluminum film into a cylindrical structure with closed two sides, and the aluminum film inflation device can continuously inflate the chamber formed by the aluminum film and the bag body before the side welding device seals the aluminum film, thereby realizing continuous aluminum film welding inflation and improving the efficiency of aluminum film welding inflation.

[0011] The present invention is further configured as follows: the inflation device comprises an upper inflation tube and a lower inflation tube, the upper inflation tube is arranged between the upper aluminum film and the bag body, and the lower inflation tube is arranged between the lower aluminum film and the bag body.

[0012] By adopting the above technical solution, the upper and lower inflation tubes can be set to inflate the aluminum films on the upper and lower surfaces of the bag body, and the inflation and welding work in the double-layer aluminum film can be realized simultaneously, thereby improving the aluminum film welding and inflation efficiency.

[0013] The present invention is further configured as follows: the upper inflation tube and the lower inflation tube are supported in a horizontal posture on the plane where the aluminum film is welded.

[0014] The present invention is further configured as follows: the top welding device includes a top welding upper mold and a top welding lower mold opposite to each other in the vertical direction, and the top welding upper mold and the top welding lower mold are driven relatively close by a driver to respectively weld the two sides of the upper aluminum film and the lower aluminum film.

[0015] The present invention is further configured as follows: the side welding device includes a side welding upper mold and a side welding lower mold opposite to each other in the vertical direction, and the side welding upper mold and the side welding lower mold are driven relatively close by a driver to respectively weld the two side edges of the upper aluminum film and the lower aluminum film.

[0016] The present invention is further configured as follows: the aluminum film welding device also includes a hole welding device located downstream of the side welding device, the hole welding device includes a hole welding upper mold and a hole welding lower mold facing each other in the vertical direction, the hole welding upper mold and the hole welding lower mold are driven relatively close by a driver respectively to weld the positioning holes and hanging pin holes on the aluminum film and the bag body.

[0017] The present invention is further configured such that: the hole welding device and the side welding device are an integrated structure.

[0018] By adopting the above technical solution, the setting of the integrated structure can save costs, and the distance between the side welding and the hole welding is very close, so the hole welding can be carried out quickly after the side sealing, reducing gas leakage in the time period between the side welding and the hole welding.

[0019] The present invention is further configured as follows: the bag conveying device includes two sets of synchronous wheels and two synchronous chains, a plurality of bag positioning components are arranged between the two synchronous chains, the bag positioning components include a mouth tube clamp and a movable positioning piece, the mouth tube clamp and the movable positioning piece are fixed on the two synchronous chains facing each other, the mouth tube of the bag body is clamped on the mouth tube clamp, and the tail of the bag body is hung on the movable positioning piece through the positioning hole and the aluminum film is hung on the movable positioning piece through the hanging pin hole.

[0020] The present invention is further configured as follows: the movable positioning member includes a movable plate, a positioning frame and two positioning pins, the positioning pins are arranged at both ends of the positioning frame, the positioning frame is fixed to the end of the movable plate, and the movable plate is hinged to the side of the synchronous chain. During normal transmission, the movable plate rotates due to its own gravity so that the positioning pins maintain a vertical posture, thereby facilitating the hanging of the positioning hole and the hanging pin hole; when the movable plate continues to rotate toward the side of the mouth tube clamp, the positioning pins move downward so that they can be disengaged from the positioning hole and the hanging pin hole.

[0021] The present invention is further configured as follows: a push rod device is arranged on the frame, and the push rod device is arranged on one side of the side welding device to push the movable plate in the horizontal direction so that the bag body and the aluminum film are separated from the positioning pin during hole welding.

[0022] In summary, the beneficial technical effects of the present invention are:

[0023] 1. The present invention can first weld the aluminum film into a cylindrical structure with closed two sides through the top welding device, and the aluminum film inflation device can continuously inflate the chamber formed by the aluminum film and the bag body before the side welding device seals the aluminum film, thereby realizing continuous aluminum film welding inflation and improving the efficiency of aluminum film welding inflation. The top welding device, the side welding device and the aluminum film inflation device work synchronously, ensuring the consistency of aluminum film welding and improving the quality of the product;

[0024] 2. The hole welding device provided in the present invention can synchronously weld the positioning hole of the bag body and the hanging pin hole on the aluminum film, thereby improving the sealing performance of the aluminum film welding and improving the welding quality of the aluminum film;

[0025] 3. The aluminum film and the bag body of the present invention are positioned by positioning pins, and the mouth tube is clamped by a mouth tube clamp so that each powder-liquid double-chamber bag can be stretched, which is beneficial to the accuracy of the aluminum film during side welding, top welding and hole welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the welding state of the powder-liquid double chamber bag and the aluminum film according to an embodiment of the present invention.

[0027] Figure 2 It is a schematic diagram of the overall structure of a powder-liquid double-chamber bag aluminum film welding production line according to an embodiment of the present invention.

[0028] Figure 3It is a schematic diagram of the overall structure of the powder-liquid double-chamber bag aluminum film welding production line according to an embodiment of the present invention (part of the frame is hidden).

[0029] Figure 4 It is a schematic structural diagram showing an aluminum film feeding device and a bag conveying device according to an embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram showing the structure of a bag conveying device according to an embodiment of the present invention (part of the frame is hidden).

[0031] Figure 6 The figure is a schematic diagram of the installation relationship between the powder-liquid double chamber bag, the mouth tube clamp and the movable positioning member according to the embodiment of the present invention.

[0032] Figure 7 It is a side view (part of the frame is hidden) of the structures and relative positions of various devices of the powder-liquid double-chamber bag aluminum film welding production line according to an embodiment of the present invention.

[0033] Figure 8 It is a schematic diagram of the structure of a top welding upper mold and a top welding lower mold according to an embodiment of the present invention (due to symmetry, only the lower mold is shown).

[0034] Fig. 9 It is a schematic diagram of the relative position relationship between the upper and lower air filling pipes, the top welding device and the side welding device in an embodiment of the present invention.

[0035] Fig.10 Schematic diagram of the welding position relationship between the upper aluminum film, the lower aluminum film and the powder-liquid double chamber bag in an embodiment of the present invention.

[0036] Fig.11 It is a schematic diagram of the states of the upper and lower aluminum films, the bag body, and the upper and lower inflation tubes after the upper and lower aluminum films of an embodiment of the present invention are top-welded.

[0037] Fig.12 It is a schematic structural diagram of the side welding upper and lower molds and the hole welding upper and lower molds according to an embodiment of the present invention (due to symmetry, only the lower mold is shown).

[0038] Fig.13 It is a schematic diagram showing the positional relationship of the push rod device relative to the side welding device according to an embodiment of the present invention.

[0039] Fig.14 yes Fig.13 The enlarged schematic diagram of part A showing the push rod device and the movable positioning member.

[0040] Fig.15 It is a schematic structural diagram of a bag ejecting device according to an embodiment of the present invention.

[0041] Fig.16It is a schematic diagram of the process of top welding, side welding and hole welding of the aluminum film of the powder-liquid double-chamber bag according to an embodiment of the present invention.

[0042] 1. Bag body; 11. Liquid chamber; 12. Powder chamber; 13. Mouth tube; 14. Positioning hole; 2. Frame; 3. Aluminum film feeding device; 31. Upper conveying roller assembly; 32. Upper punching assembly; 33. Lower conveying roller assembly; 34. Lower punching assembly; 4. Bag conveying device; 41. Synchronous wheel; 42. Synchronous chain; 421. Top outlet; 43. Bag positioning assembly; 431. Mouth tube clamp; 432. Movable positioning member; 4321. Movable plate; 4322. Positioning frame; 4323. Positioning pin; 5. Top welding device; 51. Top welding upper mold; 52. Top welding lower mold; 521. Top welding rod; 522. Virtual welding rod; 53. Top welding upper driver; 54. Top Welding lower driver; 6, aluminum film inflation device; 61, upper inflation tube; 62, lower inflation tube; 63, air pump diaphragm valve; 64, gas cylinder; 7, side welding device; 71, side welding upper mold; 72, side welding lower mold; 73, side welding upper driver; 74, side welding lower driver; 8, hole welding device; 81, hole welding upper mold; 82, hole welding lower mold; 821 hole welding table; 83, push rod device; 831, horizontal driver; 832, push rod; 9, punching device; 91, punching upper mold; 92, punching lower mold; 93, punching upper driver; 10, bag ejection device; 101, ejection cylinder; 200, upper aluminum film; 201, lower aluminum film; 202, hanging pin hole. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] refer to Figure 1 The powder-liquid double-chamber bag of the embodiment of the present invention includes a bag body 1, the bag body 1 has a liquid cavity 11 and a powder cavity 12, the liquid cavity 11 is connected to a mouth tube 13, the tail of the bag body 1 has two positioning holes 14, the bag body is covered with an aluminum film, and in order to facilitate the transmission of the aluminum film, the aluminum film is provided with a hanging pin hole 202 corresponding to the positioning hole 14, and the aluminum film of the embodiment of the present invention is welded on the upper and lower surfaces of the powder cavity 12 of the bag body 1.

[0045] refer to Figure 2A powder-liquid double-chamber bag aluminum film welding production line according to an embodiment of the present invention comprises a frame 2, on which a bag conveying device 4 is arranged for conveying the powder-liquid double-chamber bag and the aluminum film to be welded. The frame 2 is provided with an aluminum film feeding device 3, a top welding device 5, a side welding device 7 and a hole welding device 8 in sequence along the bag conveying direction. The aluminum film feeding device 3 is used for punching holes in the aluminum film and pulling the aluminum film onto the bag conveying device 4. The top welding device 5 is used for top welding and virtual welding on both sides of the aluminum film parallel to the conveying direction, so that the aluminum film forms a cylindrical shape along the conveying direction and with front and rear openings. Structure; the side welding device 7 is used to weld the other two side edges of the aluminum film, and the hole welding device 8 is used to weld the hanging pin hole 202 of the aluminum film and the surrounding area, so as to close the chamber between the aluminum film and the bag body 1; it also includes an aluminum film inflation device 6, which fills the cylindrical chamber formed between the aluminum film and the bag body 1 with inert gas, so that the sealed aluminum film is filled with inert gas; after welding is completed, the punching device 9 located after the hole welding device is used to punch the continuous aluminum film, and the powder-liquid double-chamber bag after punching is separated from the bag conveying device 4 through the bag ejection device 10.

[0046] refer to Figure 4 The bag conveying device 4 includes two sets of synchronous wheels 41, two synchronous chains 42 and a plurality of bag positioning components 43. The two synchronous chains 42 are arranged opposite to each other and are driven to rotate by the synchronous wheels 41 on the same side. The plurality of bag positioning components 43 are installed on the synchronous chains 42 and move cyclically with the synchronous chains 42. The aluminum film is driven to be conveyed by the bag positioning components 43. The bag positioning components 43 include a mouth tube clamp 431 and a movable positioning member 432. The mouth tube clamp 431 is installed on one synchronous chain 42, and the movable positioning member 432 is installed on the other synchronous chain 42.

[0047] refer to Figure 5 and Figure 6 Specifically, the movable positioning member 432 includes a movable plate 4321, a positioning frame 4322 and two positioning pins 4323. The positioning pins 4323 are arranged at both ends of the positioning frame 4322. The positioning frame 4322 is fixed to the end of the movable plate 4321. The movable plate 4321 is hinged to the side of the synchronous chain 42. During normal transmission, the movable plate 4321 rotates due to its own gravity so that the positioning pins 4323 maintain a vertical posture, thereby facilitating the hanging of the positioning hole 14 of the bag body 1 and the hanging pin hole 202 on the aluminum film; when the movable plate 4321 continues to rotate toward the side of the mouth tube clamp 431, the positioning pins 4323 move downward so that they can be separated from the positioning hole 14 and the hanging pin hole 202.

[0048] refer to Figure 4 and Figure 7Specifically, the aluminum film feeding device 3 includes an upper conveying roller assembly 31, an upper punching assembly 32, a lower conveying roller assembly 33, and a lower punching assembly 34. The upper conveying roller assembly 31 is used to convey the upper aluminum film 200, the upper punching assembly 32 is used to punch the upper aluminum film 200, the lower conveying roller assembly 33 is used to convey the lower aluminum film 201, and the lower punching assembly 34 is used to punch the lower aluminum film 201. The upper conveying roller assembly 31 and the lower conveying roller assembly 33 respectively convey the upper aluminum film 200 and the lower aluminum film 201 to the bag conveying device 4. The conveying power of the upper aluminum film 200 and the lower aluminum film 201 comes from the bag conveying device 4.

[0049] Combination Figure 5 and Figure 6 The lower aluminum film 201 is first hung on the movable positioning piece 432 through the hanging pin hole 202; the mouth tube 13 of the bag body 1 is engaged with the mouth tube clamp 431, and the powder chamber 12 is hung on the movable positioning piece 432 through the positioning hole 14, and the bag body 1 is transported forward in a horizontal posture; the upper aluminum film 200 is hung on the movable positioning piece 432 through the hanging pin hole 202, thereby covering the bag body 1.

[0050] refer to Figure 7 The top welding device 5 includes a top welding upper mold 51, a top welding lower mold 52, a top welding upper driver 53 and a top welding lower driver 54. The top welding upper mold 51 and the top welding lower mold 52 are opposite to each other in the vertical direction. The top welding upper driver 53 and the top welding lower driver 54 are respectively fixed on the side of the frame 2. The top welding upper driver 53 and the top welding lower driver 54 respectively drive the top welding upper mold 51 and the top welding lower mold 52 to be relatively close or far away. The top welding upper driver 53 and the top welding lower driver 54 can adopt cylinders.

[0051] refer to Figure 8 The top welding upper mold 51 and the top welding lower mold 52 are each constructed with two top welding rods 521 arranged along the conveying direction, and the other is a dummy welding rod 522; the top welding rod 521 and the dummy welding rod 522 first weld the two sides of the aluminum film parallel to the conveying direction, so that the aluminum film forms a cylindrical shape with front and back openings.

[0052] refer to Figure 5 and Fig. 9The aluminum film inflation device 6 mainly includes an upper inflation pipe 61 and a lower inflation pipe 62 arranged along the conveying direction. The upper inflation pipe 61 and the lower inflation pipe 62 are made of metal pipes. The upper inflation pipe 61 and the lower inflation pipe 62 are supported by a pad 65 installed in the conveying direction. The upper inflation pipe 61 and the lower inflation pipe 62 are both connected to a gas cylinder 64, and the gas supply is controlled by an air pump diaphragm valve 63. The lower inflation pipe 62 extends from the position where the lower aluminum film 201 is connected to the bag conveying device 4 to the front of the side welding device 7, and the upper inflation pipe 61 extends from the position where the upper aluminum film 200 is connected to the bag conveying device 4 to the front of the side welding device 7, that is, the inflation ports of the upper inflation pipe 61 and the lower inflation pipe 62 are close to the entrance of the side welding device 7. It should be understood that the position where the upper aluminum film 200 enters the bag conveying device 4 should be between the position where the lower aluminum film 201 enters the synchronous chain 42 and the welding entrance of the top welding device 5. Then, the area before the overlapping point of the upper aluminum film 200 and the lower aluminum film 201 can be manually placed in the powder-liquid double-chamber bag to be welded.

[0053] refer to Fig.10 and Fig.11 When the top welding device 5 welds the upper aluminum film 200 and the lower aluminum film 201 into a cylindrical shape, the upper inflation tube 61 is covered between the upper aluminum film 200 and the bag body 1, and the lower inflation tube 62 is covered between the lower aluminum film 201 and the bag body 1, so that the chamber formed by the aluminum film and the bag body 1 can be inflated all the time.

[0054] refer to Figure 7 The side welding device 7 includes a side welding upper mold 71 and a side welding lower mold 72, a side welding upper driver 73 and a side welding lower driver 74, the side welding upper mold 71 and the side welding lower mold 72 are opposite to each other in the vertical direction, the side welding upper driver 73 and the side welding lower driver 74 are respectively fixed on the side of the frame 2, and the side welding upper driver 73 and the side welding lower driver 74 respectively drive the side welding upper mold 71 and the side welding lower mold 72 to be relatively close or far away. The side welding upper driver 73 and the side welding lower driver 74 can adopt cylinders.

[0055] refer to Fig.12 Two side welding rods 721 perpendicular to the conveying direction are symmetrically constructed in the side welding upper mold 71 and the side welding lower mold 72, so as to seal the aluminum film that has been welded into a cylindrical shape.

[0056] refer to Figure 7 The hole welding device 8 includes a hole welding upper mold 81 and a hole welding lower mold 82. The hole welding upper mold 81 and the hole welding lower mold 82 can be set into an integrated structure and driven by a top welding upper driver 53 and a top welding lower driver 54.

[0057] refer to Fig.12 Two hole welding platforms 821 are symmetrically constructed in the hole welding upper mold 81 and the hole welding lower mold 82, so as to weld the hanging pin hole 202.

[0058] refer to Fig.13 and Fig.14 Since the bag body 1 is hung on the positioning pin 4323 through the positioning hole 14, the upper aluminum film 200 and the lower aluminum film 201 are hung on the positioning pin 4323 through the hanging pin hole 202, when hole welding is performed, it is necessary to disengage the bag body 1 and the aluminum film from the positioning pin 4323. For this purpose, a push rod device 83 is arranged on the frame 2 and located at the hole welding device 8. The push rod device 83 includes a horizontal driver 831 and a push rod 832. The horizontal driver 831 can adopt a cylinder. The push rod 832 is horizontally arranged and fixedly connected to the piston end of the cylinder. When the top welding upper driver 53 and the top welding lower driver 54 are actuated, the horizontal driver 831 drives the push rod 832 to move forward, and the push rod 832 pushes the upper part of the back side of the movable plate 4321, so that the movable plate 4321 is flipped at a certain angle along the pushing direction, so that the positioning pin 4323 is disengaged from the positioning hole 14 below the bag body 1, and then the side welding device 7 and the hole welding device 8 simultaneously perform top welding and hole welding on two adjacent bag bodies 1.

[0059] refer to Figure 7 The punching device 9 includes an upper punching die 91, a lower punching die 92 and an upper punching driver 93. The upper surface of the lower punching die 92 is used as a punching surface. The upper punching driver 93 is connected to the frame 2 to drive the upper punching die 91 to reciprocate downward to cut the aluminum film, so that each powder-liquid double-chamber bag becomes an independent individual and is transported to the bag ejection device 10. The upper punching driver 93 can be a cylinder.

[0060] refer to Fig.15 The bag ejection device 10 includes an ejection cylinder 101 which is tilted, the bottom end of the ejection cylinder 101 is supported on the bottom surface, the piston rod of the ejection cylinder 101 faces a fixed position of the synchronous chain 42, and an ejection outlet 421 is reserved between the mouth tube clamp 431 and the synchronous chain 42. When the bag body 1 is normally conveyed, the mouth tube 13 covers the ejection outlet 421. When the bag body 1 that has completed aluminum film welding reaches the end of the conveying and has been turned downward, the bag body 1 is inclined relative to the ground, and the inclination angle is about 45 degrees. At this time, the piston rod of the ejection cylinder 101 reciprocates in the ejection outlet 421, and the piston end pushes the mouth tube 13 of the bag body 1 from the inside of the mouth tube clamp 431 to the outside, and the mouth tube 13 of the bag body 1 is pushed out of the mouth tube clamp 431, so that the bag body 1 is completely separated from the bag conveying device 4. A product box or other collection device can be set at the landing point of the bag body 1 to collect the powder-liquid double-chamber bag that has completed aluminum film welding.

[0061] refer to Fig.16 In order to more clearly understand the embodiment of the present invention, the working principle of the embodiment of the present invention is exemplarily described below:

[0062] First, the lower aluminum film 201 is guided by the lower conveying roller 33, and the hanging pin holes 202 are punched on the aluminum film by the lower punching assembly 34. Each group of hanging pin holes 202 on the lower aluminum film 201 is correspondingly hung on the positioning pin 4323. At this time, the lower inflation tube 62 is located above the lower aluminum film 201; then, the upper aluminum film 200 is guided by the upper conveying roller 31, and the hanging pin holes 202 are punched on the aluminum film by the upper punching assembly 32. Each group of hanging pin holes 202 on the upper aluminum film 200 is hung on the positioning pin 4323.

[0063] Then, the powder-liquid double-chamber bag of the aluminum film to be welded is manually placed on the bag conveying device 4, the mouth tube 13 is engaged with the mouth tube clamp 431, and the bag body 1 is hung on the positioning pin 4323 through the positioning hole 14. At this time, the bag body 1 is pressed on the upper part of the lower inflation tube 62. The synchronous wheel 41 drives the synchronous chain 42 to move, thereby conveying the lower aluminum film 201 and the powder-liquid double-chamber bag to be welded forward and reaching the access position of the upper aluminum film 200.

[0064] The upper inflation tube 61 is located above the bag body 1 , the upper aluminum film 200 covers the upper surface of the bag body 1 and covers the upper inflation tube 61 , the upper aluminum film 200 , the bag body 1 and the lower aluminum film 201 are synchronously conveyed forward and enter the top welding device 5 .

[0065] The top welding upper mold 51 and the top welding lower mold 52 are driven by the top welding upper driver 53 and the top welding lower driver 54 respectively to move relative to each other to clamp the upper aluminum film 200, the bag body 1 and the lower aluminum film 201, and the top welding rod 521 and the dummy welding rod 522 weld the two sides of the upper aluminum film 200 and the lower aluminum film 201. After welding, the upper aluminum film 200 and the lower aluminum film 201 form a cylindrical shape with front and back openings along the conveying direction between the bag body 1.

[0066] After the top welding is completed, the synchronous chain 42 continues to drive the powder-liquid double-chamber bag to be transported forward. Before reaching the side welding device 7, the upper inflation tube 61 and the lower inflation tube 62 inflate the cylindrical cavities formed by the upper aluminum film 200 and the lower aluminum film 201 respectively.

[0067] The inflation is not stopped, and the bag body 1 enters the side welding device 7 and the hole welding device 8. The side welding upper mold 71 and the hole welding upper mold 81, the side welding lower mold 72 and the hole welding lower mold 82 respectively clamp the upper aluminum film 200, the bag body 1 and the lower aluminum film 201 through relative movement driven by the side welding upper driver 73 and the side welding lower driver 74, and the two side welding rods weld the two side edges of the upper aluminum film 200 and the lower aluminum film 201.

[0068] It should be noted that the side welding device 7 and the hole welding device 8 perform synchronous welding when the production line is running, that is, when the side welding device 7 welds the side of a bag body 1, the hole welding device 8 performs hole welding on the hanging pin hole 202 of the previous bag body 1.

[0069] When the top welding upper mold 51 and the top welding lower mold 52 move relative to each other, the horizontal driver 841 drives the push rod 842 to move forward, and the push rod 842 pushes the upper part of the back side of the movable plate 4321, so that the movable plate 4321 flips a certain angle along the pushing direction, so that the positioning pin 4323 disengages from the positioning hole 14 at the bottom of the bag body 1, and then the side welding device 7 and the hole welding device 8 perform top welding and hole welding on the two adjacent bag bodies 1 at the same time.

[0070] In this embodiment, the aluminum film welding is continuous welding. Therefore, the upper inflation tube 61 and the lower inflation tube 62 are always enclosed in the cylindrical chambers formed by the upper aluminum film 200 and the lower aluminum film 201 respectively. After the current bag body 1 entering the side welding device 7 completes the side welding, the next one continues to inflate and weld.

[0071] The bag body 1 after side welding and hole welding is clamped by the mouth tube clamp 431 and transferred to the punching device 9. The upper punching die 91 in the punching device 9 is driven downward by the upper punching driver 93 to punch the aluminum film located on the punching surface of the lower punching die 92.

[0072] After punching, the independent powder-liquid double-chamber bag is conveyed to the conveying end of the synchronous chain 42, and the ejection cylinder 101 reciprocates. The piston end of the ejection cylinder 101 pushes the mouth tube 13 of the bag body 1 from the inside of the mouth tube clamp 431 to the outside, and the mouth tube 13 of the bag body 1 is pushed out of the mouth tube clamp 431, so that the bag body 1 is completely separated from the bag conveying device 4 and collected by the collection box arranged at the drop point of the bag body 1.

[0073] The aluminum film welding production line of the present invention can perform continuous welding of aluminum film, and there is no need to slice the aluminum film like traditional aluminum film welding machines, thereby improving the aluminum film welding efficiency; in addition, the present invention adopts top welding first to weld the aluminum film into a cylindrical shape, and then performs side welding and hole welding in sequence, and cooperates with the upper and lower inflation tubes to achieve continuous inflation of the aluminum film, further improving the production efficiency of aluminum film welding; further, the aluminum film and the bag body in this embodiment are positioned by locating pins, and the mouth tube is clamped by a mouth tube clamp so that each powder-liquid double-chamber bag can be guaranteed to stretch, which is beneficial to the accuracy of the aluminum film during side welding, top welding and hole welding.

[0074] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0075] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A powder-liquid double-chamber bag aluminum film welding production line, comprising a frame (2), an aluminum film feeding device (3), an aluminum film welding device, a bag conveying device (4) and a punching device (9), characterized in that: It also includes an aluminum film inflation device (6), and the aluminum film welding device includes a top welding device (5) and a side welding device (7) which are arranged in sequence, wherein: The top welding device (5) is used to weld two opposite sides of the aluminum film parallel to the bag conveying direction, so that the aluminum film forms a cylindrical shape with two sides closed and front and back open; The aluminum film inflation device (6) is arranged between the bag body (1) and the aluminum film, and the inflation port of the aluminum film inflation device (6) extends to the inlet of the side welding device (7); The side welding device (7) is used to weld the other two side edges of the aluminum film so that the aluminum film and the bag body (1) form a closed chamber and seal the inert gas filled by the aluminum film filling device (6); The bag conveying device (4) is used to continuously convey the bag body (1) and the aluminum film; The aluminum film welding device also includes a hole welding device (8) located downstream of the side welding device (7), the hole welding device (8) includes a hole welding upper mold (81) and a hole welding lower mold (82) facing each other in the vertical direction, the hole welding upper mold (81) and the hole welding lower mold (82) are driven by a driver to be relatively close to each other, so as to weld the hanging pin hole (202) on the aluminum film and the positioning hole (14) on the bag body (1); Two hole welding platforms (821) are symmetrically constructed in the hole welding upper mold (81) and the hole welding lower mold (82), so as to perform welding on the hanging pin hole (202); The aluminum film inflation device (6) comprises an upper inflation tube (61) and a lower inflation tube (62), wherein the upper inflation tube (61) is arranged between the upper aluminum film (200) and the bag body (1), and the lower inflation tube (62) is arranged between the lower aluminum film (201) and the bag body (1); The top welding device (5) comprises a top welding upper mold (51) and a top welding lower mold (52) which are opposite to each other in the vertical direction, and the top welding upper mold (51) and the top welding lower mold (52) are driven by a driver to be relatively close to each other so as to weld two side edges of an upper aluminum film (200) and a lower aluminum film (201) respectively; The hole welding device (8) and the side welding device (7) are an integrated structure; The bag conveying device (4) comprises two sets of synchronous wheels (41) and two synchronous chains (42). A plurality of bag positioning components (43) are arranged between the two synchronous chains (42). The bag positioning components (43) comprise a mouth tube clamp (431) and a movable positioning member (432). The mouth tube clamp (431) and the movable positioning member (432) are fixed on the two synchronous chains (42) facing each other. The mouth tube (13) of the bag body (1) is engaged with the mouth tube clamp (431). The tail of the bag body (1) is hung on the movable positioning member (432) through the positioning hole (14) and the aluminum film is hung on the movable positioning member (432) through the hanging pin hole (202).

2. The powder-liquid double chamber bag aluminum film welding production line according to claim 1 is characterized by: The upper inflation tube (61) and the lower inflation tube (62) are supported in a horizontal posture on the plane where the aluminum film is welded.

3. The powder-liquid double chamber bag aluminum film welding production line according to claim 1 is characterized by: The side welding device (7) comprises a side welding upper mold (71) and a side welding lower mold (72) which are opposite to each other in the vertical direction. The side welding upper mold (71) and the side welding lower mold (72) are driven by a driver to move relatively close to each other so as to weld the two top edges of the upper aluminum film (200) and the lower aluminum film (201) respectively.

4. The powder-liquid double chamber bag aluminum film welding production line according to claim 1 is characterized by: The movable positioning member (432) includes a movable plate (4321), a positioning frame (4322) and two positioning pins (4323). The positioning pins (4323) are arranged at both ends of the positioning frame (4322). The positioning frame (4322) is fixed to the end of the movable plate (4321). The movable plate (4321) is hinged to the side of the synchronous chain (42). During normal transmission, the movable plate (4321) rotates due to its own gravity so that the positioning pins (4323) maintain a vertical posture, thereby facilitating the hanging of the positioning hole (14) and the hanging pin hole (202); when the movable plate (4321) continues to rotate toward the side of the mouth tube clamp (431), the positioning pins (4323) move downward so as to be able to disengage from the positioning hole (14) and the hanging pin hole (202).

5. The powder-liquid double chamber bag aluminum film welding production line according to claim 4 is characterized in that: The frame (2) is provided with a push rod device (83), which is arranged on one side of the side welding device (7) and is used to push the movable plate (4321) in a horizontal direction so that the bag body (1) and the aluminum film are separated from the positioning pin (4323) during hole welding.

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