A finger-like automatic bagging machine

Abstract

The present invention provides a finger - like automatic bagging machine. In the present invention, finger - holding seats with a height difference are arranged on both sides inside the main frame. Each finger - holding seat is provided with a pair of L - shaped fingers. When the L - shaped fingers on both sides inside the main frame approach each other, a pair of L - shaped fingers on one side of the main frame and a pair of L - shaped fingers on the other side of the main frame pinch the bag film at the top of the main frame in a staggered manner. Thus, when the L - shaped fingers on both sides inside the main frame open, a pair of L - shaped fingers on one side of the main frame and a pair of L - shaped fingers on the other side of the main frame rub against each other to open and clamp the bag film. Thereafter, the lifting motor drives the lifting frame to descend on the slide rail through the transmission belt, thereby pulling down the opened bag film and sleeving it on the product, so as to automatically sleeve the bag film on the product, thereby improving the efficiency of bagging the product and reducing the labor cost; the present invention belongs to the technical field of automatic packaging.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated packaging, and particularly relates to a finger-like automatic bagging machine. Background Art

[0002] A bag film is a thin film for protecting the surface of a product. It is sleeved around the product to form a very light and protective outer surface, thereby achieving the purposes of dust prevention, oil prevention, moisture prevention, and waterproofing. In product packaging, in order to facilitate batch packaging of products, a bag film wound around a roller is generally used. Since the bag film is wound in a bundle on the roller, when the bag film is pulled out from the roller to bag the product, the pulled-out bag film needs to be opened. In the existing technology, generally, a large amount of bag film needs to be pulled out from the roller and manually opened before bagging the product, resulting in high labor costs, low work efficiency, and the need to occupy a large amount of space for storing the pulled-out bag film. Summary of the Invention

[0003] The purpose of the present invention is to provide a finger-like automatic bagging machine to automatically sleeve the bag film on the product, thereby improving the bagging efficiency of the product and reducing labor costs.

[0004] The present invention includes a main frame. A film feeding device is arranged at the top of the main frame. A product transportation device is arranged at the bottom of the main frame. Lifting slide rails and lifting motors are installed on both sides of the main frame. Lifting sliders are arranged on the lifting slide rails. A lifting frame is installed on the lifting slide rails. A transmission belt connecting the lifting frame is arranged on the lifting motor. A transverse slide rail and a transverse cylinder are installed on the lifting frame. A transverse slider is arranged on the transverse slide rail. A transverse plate connected to the transverse cylinder is installed on the transverse slider. Clamp finger mounting frames are arranged on both sides of the transverse plate. Extension cylinders are installed on the clamp finger mounting frames. Clamp finger seats are installed on the extension cylinders. A pair of mutually cooperating L-shaped clamp fingers are arranged on the clamp finger seats. A clamp finger roller fixed to the clamp finger seat is arranged at the corner of the L-shaped clamp finger. A clamp finger cylinder is installed on the clamp finger seat. The clamp finger cylinder is simultaneously connected to one end of a pair of L-shaped clamp fingers. Anti-slip strips are arranged at the other end of the L-shaped clamp fingers.

[0005] The bag film is rolled up in the film feeding device, which pulls out the rolled bag film and conveys it to the top of the main frame. The product transport device transports the product to the main frame. The lifting motor drives the lifting frame to rise to the top of the main frame on the slide rail through the transmission belt. There is a height difference after the lifting frames on both sides of the main frame rise to the top of the main frame. The transverse cylinder drives the transverse plate to move toward the central axis of the main frame, so that the transverse plates on both sides of the main frame are close to each other. The extension cylinder drives the clamping finger seat to move toward the central axis of the main frame, so that the clamping finger seats on both sides of the main frame are close to each other. The clamping finger cylinder drives one The L-shaped clamping fingers are clamped together, so that a pair of L-shaped clamping fingers on one side of the main frame and a pair of L-shaped clamping fingers on the other side of the main frame are offset to pinch the bag film on the top of the main frame, and then the extension cylinder drives the clamping finger seat to reset, and the transverse cylinder drives the transverse plate to reset, so that the pair of L-shaped clamping fingers on one side of the main frame and the pair of L-shaped clamping fingers on the other side of the main frame rub against each other to open and clamp the bag film, and the lifting motor drives the lifting frame to descend on the slide rail through the transmission belt, so that the opened bag film is pulled down and put on the product; thereafter, the film feeding device seals and cuts the bag film.

[0006] The film feeding device includes a main film placing frame and a film discharging frame. The film discharging frame is installed on the top of the main frame. The main film placing frame is equipped with a main film placing roller. A punching mechanism is arranged beside the main film placing roller. The punching mechanism includes a film supporting seat and a punching cylinder. The film supporting seat is provided with a punching groove. The punching cylinder is equipped with a pressure plate matched with the film supporting seat. The pressure plate is provided with a punching knife matched with the punching groove. The film discharging frame is equipped with a film drawing roller, a roller motor, a main film drawing cylinder and a main film drawing roller. The roller motor is connected with the film drawing roller by transmission. The main film drawing cylinder is equipped with a main film pressing roller matched with one side of the film drawing roller. The main film roller cooperates with the main film placing roller and the main film pressing roller. A film cutting mechanism is arranged below the film drawing roller.

[0007] The bag film is rolled up on the main film-releasing roller, and the bag film is stretched from the main film-releasing roller to one side of the film-pulling roller. The main film-pulling cylinder drives the main film-pressing roller to move, so that the main film-pressing roller presses the bag film on one side of the film-pulling roller. When feeding the film, the roller motor drives the film-pulling roller to rotate, thereby driving the bag film to be pulled out from the main film-releasing roller. When the bag film is pulled out from the main film-releasing roller, the punching cylinder drives the pressing plate to press down, so that the punching knife punches holes in the bag film, thereby preventing the air in the bag film from being discharged when the product is bagged.

[0008] Above the main film pressing roller, a main film fixing seat and a main film fixing cylinder are provided. The main film fixing cylinder is equipped with a main film fixing plate that cooperates with the main film fixing seat. The main film feeding rack is also equipped with a secondary film feeding roller, and a punching mechanism is provided on the secondary film feeding roller. The film discharging rack is also equipped with a secondary film pulling cylinder and a secondary film guiding roller. The secondary film pulling cylinder is equipped with a secondary film pressing roller that cooperates with the other side of the film pulling roller. The secondary film guiding roller cooperates with the secondary film feeding roller and the secondary film pressing roller. Between the secondary film pressing roller and the secondary film guiding roller, a secondary film fixing seat and a secondary film fixing cylinder are provided. The secondary film fixing cylinder is equipped with a secondary film fixing plate that cooperates with the secondary film fixing seat. Another bag film is wound on the secondary film feeding roller, and the bag film is stretched from the secondary film feeding roller to the other side of the film pulling roller.

[0009] When the film wound on the main film feeding roller is conveyed to the top of the main machine, the secondary film fixing seat and the secondary film fixing plate press and fix the bag film beside the secondary film pressing roller. The main film pulling cylinder drives the main film pressing roller to move, so that the main film pressing roller presses the bag film on one side of the film pulling roller. The roller motor drives the film pulling roller to rotate to pull the bag film from the main film feeding roller. When the film wound on the secondary film feeding roller is conveyed to the top of the main machine, the main film fixing seat and the main film fixing plate press and fix the bag film beside the secondary film pressing roller. The secondary film pulling cylinder drives the secondary film pressing roller to move, so that the secondary film pressing roller presses the bag film on the other side of the film pulling roller. The roller motor drives the film pulling roller to rotate to pull the bag film from the secondary film feeding roller. Thus, it can realize the conveyance of various different bag films to the top of the main machine to bag products of different sizes.

[0010] The film feeding device further includes a spare film feeding rack, and the spare film feeding rack is equipped with a spare main film feeding roller and a secondary film feeding roller. Another bag film is wound on the spare main film feeding roller and / or the secondary film feeding roller, and the bag film is stretched from the spare main film feeding roller and / or the secondary film feeding roller to the other side of the film pulling roller.

[0011] When the film wound on the main film feeding roller is conveyed to the top of the main machine, the secondary film fixing seat and the secondary film fixing plate press and fix the bag film beside the secondary film pressing roller. The main film pulling cylinder drives the main film pressing roller to move, so that the main film pressing roller presses the bag film on one side of the film pulling roller. The roller motor drives the film pulling roller to rotate to pull the bag film from the main film feeding roller. When the film wound on the secondary film feeding roller is conveyed to the top of the main machine, the main film fixing seat and the main film fixing plate press and fix the bag film beside the secondary film pressing roller. The secondary film pulling cylinder drives the secondary film pressing roller to move, so that the secondary film pressing roller presses the bag film on the other side of the film pulling roller. The roller motor drives the film pulling roller to rotate to pull the bag film from the secondary film feeding roller. Thus, it can realize the conveyance of various different bag films to the top of the main machine to bag products of different sizes.

[0012] Preferably, the finger mounting bracket is provided with an L-shaped supporting finger beside the L-shaped finger. One end of the L-shaped supporting finger is provided with a supporting finger roller fixed to the mounting plate. The mounting plate of the finger mounting bracket is equipped with a supporting cylinder connected to one end of the L-shaped supporting finger, and the other end of the L-shaped supporting finger is provided with a supporting pulley.

[0013] After the L-shaped fingers on both sides of the main frame open the bag film, the supporting cylinder drives the L-shaped supporting fingers to eject from the mounting plate, so as to support the opened bag film and make the L-shaped fingers clamp the bag film more stably.

[0014] Preferably, the finger mounting frame is equipped with a film fixing cylinder and a film fixing frame. The film fixing frame is provided with a film fixing slide rod. The film fixing slide rod is provided with a film clamping plate connected to the film fixing cylinder. The film clamping plate is provided with a film clamping pulley that cooperates with the supporting pulley.

[0015] When the L-shaped supporting fingers support the bag film, the film fixing cylinder drives the film fixing frame to move, so that the film clamping pulley presses the bag film onto the L-shaped supporting fingers, and thus pulls it down more stably.

[0016] Preferably, the transverse moving plate is provided with a longitudinal moving slide rail. The finger mounting frame is equipped with a longitudinal moving slider that cooperates with the longitudinal moving slide rail. The transverse moving plate is respectively equipped with longitudinal moving cylinders connected to the finger mounting frames on both sides of the transverse moving plate.

[0017] The longitudinal moving cylinder drives the finger mounting frame to move on the longitudinal moving slide rail to adjust the distance between the finger mounting frames on both sides of the transverse moving plate, so as to realize adjusting the position of the L-shaped fingers according to the size of the bag film or the product, so as to adapt to bagging products of various sizes.

[0018] More specifically, the film cutting mechanism includes a cutting plate cylinder and a tool cylinder. The cutting plate cylinder is equipped with a cutting plate. The cutting plate is provided with a film cutting groove and a film sealing groove. The film sealing groove is located below the film cutting groove. The tool cylinder is equipped with a tool holder. The tool holder is equipped with an adaptive spring mechanism and a cutting tool. The cutting tool cooperates with the film cutting groove. The adaptive spring mechanism is equipped with a hot melt sealing plate that cooperates with the film sealing groove.

[0019] The cutting plate cylinder drives the cutting plate to move, and the tool cylinder drives the cutting plate to move, so that the cutting tool presses the bag film into the film cutting groove and cuts it off. At the same time, the hot melt sealing plate presses the bag film into the film sealing groove and seals it, so that the equipment realizes automatic film cutting and sealing.

[0020] Preferably, the film outlet frame is equipped with film cutting slide rails located below both ends of the film pulling roller. Both the cutting plate and the tool holder are provided with film cutting sliders that cooperate with the film cutting slide rails; so that the cutting plate cylinder drives the cutting plate to move more stably, and the tool cylinder drives the cutting plate to move more stably.

[0021] Pressure film plates are arranged on both the upper and lower sides of the tool holder. The pressure film plates are provided with a number of elastic pressure film members that cooperate with the cutting plate; so that when the cutting tool cuts the bag film and the hot melt sealing plate seals the bag film, the elastic pressure film members press the bag film near the cutting tool and the hot melt sealing plate onto the cutting plate, thereby improving the stability of film cutting and sealing.

[0022] More specifically, the product transportation device includes a feeding frame and two push plates. The feeding frame is arranged with a number of feeding rollers. The feeding frame is equipped with a feeding motor that is drivingly connected to the feeding rollers. The feeding frame is equipped with a pushing rail that is located below the feeding rollers and parallel to them. The push plates are provided with pushing sliders that cooperate with the pushing rail. The two push plates are respectively arranged on both sides of the feeding rollers. The push plates are provided with a number of push rods that pass between adjacent two feeding rollers. One push plate is provided with a constant force hinge that is drivingly connected to the other push plate. The feeding frame is equipped with a centering cylinder that is connected to one end of the constant force hinge.

[0023] The feeding motor drives the feeding rollers to rotate so as to transfer the product into the main frame. After the product is transferred into the frame, the centering cylinder drives the two push plates through the constant force hinge to push the product on the feeding rollers to the center, so as to facilitate bagging the product.

[0024] The following are the beneficial effects of the present invention:

[0025] In the present invention, finger holders with a height difference are arranged on both sides inside the main frame. Each finger holder is provided with a pair of L-shaped fingers. When the L-shaped fingers on both sides inside the main frame approach each other, a pair of L-shaped fingers on one side of the main frame and a pair of L-shaped fingers on the other side of the main frame misalignedly pinch the bag film at the top of the main frame. When the L-shaped fingers on both sides inside the main frame open, a pair of L-shaped fingers on one side of the main frame and a pair of L-shaped fingers on the other side of the main frame rub against each other to open and clamp the bag film. Thereafter, the lifting motor drives the lifting frame to descend on the slide rail through the transmission belt, thereby pulling down the opened bag film and sleeving it on the product, so that the present invention realizes automatically sleeving the bag film on the product, thereby improving the efficiency of bagging the product and reducing the labor cost. Description of the Drawings

[0026] In order to more clearly illustrate the embodiments of the present invention, the drawings required for description in the embodiments or the prior art will be briefly described below.

[0027] Figure 1 is a schematic structural diagram of the present invention;

[0028] Figure 2 is a schematic structural diagram of the lifting slide rail and the lifting frame of the present invention;

[0029] Figure 3 is a schematic structural diagram of the lifting frame and the finger holder of the present invention;

[0030] Figure 4 is a schematic structural diagram of the finger holder of the present invention;

[0031] Figure 5 is a schematic structural diagram of the other side of the finger holder of the present invention;

[0032] Figure 6 is a sectional view of the finger holder according to the present invention;

[0033] Figure 7 is a schematic structural view of the product transportation device according to the present invention;

[0034] Figure 8 is a bottom view of the product transportation device according to the present invention;

[0035] Figure 9 is a sectional view of the film cutting mechanism according to the present invention;

[0036] Figure 10 is a schematic sectional structural view of the film cutting mechanism according to the present invention;

[0037] Figure 11 is a schematic structural view of the film feeding device according to Embodiment 1;

[0038] Figure 12 is a schematic structural view of the film outlet frame according to Embodiment 1;

[0039] Figure 13 is a schematic structural view of the film feeding device according to Embodiment 2;

[0040] Figure 14 is a schematic structural view of the film outlet frame according to Embodiment 2;

[0041] Figure 15 is a schematic structural view of the punching mechanism according to the present invention.

[0042] Reference numerals:

[0043] 1, main frame; 110, lifting slide rail; 111, lifting motor; 112, lifting slider; 113, transmission belt; 114, lifting frame; 121, transverse slide rail; 122, transverse cylinder; 123, transverse slider; 124, transverse plate; 13, finger mounting frame; 131, extension cylinder; 14, longitudinal slide rail; 141, longitudinal slider; 142, longitudinal cylinder;

[0044] 2, finger holder; 21, L-shaped finger; 211, finger roller; 212, anti-slip strip; 213, finger cylinder; 22, L-shaped support finger; 221, support finger roller; 222, support cylinder; 223, support pulley; 231, film fixing cylinder; 232, film fixing frame; 233, film fixing slide bar; 234, film clamping plate; 235, film clamping pulley;

[0045] 31, main film feeding frame; 311, main film feeding roller; 310, main bag film; 302, spare film feeding frame; 312, auxiliary film feeding roller; 320, auxiliary bag film;

[0046] 32. Film-out rack; 321. Film-pulling roller; 3211. Roller motor; 322. Main film-pulling cylinder; 3221. Main film-guiding roller; 3222. Main film-pressing roller; 33. Main film-fixing seat; 331. Main film-fixing cylinder; 332. Main film-fixing plate; 34. Auxiliary film-pulling cylinder; 341. Auxiliary film-guiding roller; 342. Auxiliary film-pressing roller; 35. Auxiliary film-fixing seat; 36. Auxiliary film-fixing cylinder; 37. Auxiliary film-fixing plate;

[0047] 4. Punching mechanism; 41. Film-supporting seat; 42. Punching cylinder; 43. Punching groove; 44. Pressing plate; 45. Punching knife;

[0048] 5. Film-cutting mechanism; 51. Cutting plate cylinder; 52. Tool cylinder; 53. Cutting plate; 531. Film-cutting groove; 532. Film-sealing groove; 54. Tool holder; 541. Adaptive spring mechanism; 542. Cutting knife; 543. Heat-sealing plate; 55. Film-cutting slide rail; 551. Film-cutting slide block; 56. Film-pressing plate; 561. Elastic film-pressing part;

[0049] 6. Product transportation device; 60. Feeding rack; 61. Pushing plate; 611. Feeding slide rail; 612. Feeding slide block; 613. Push rod; 62. Feeding roller; 63. Feeding motor; 64. Constant-force hinge; 641. Centering cylinder. Detailed implementation manners

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary and are not intended to limit the scope of the present invention. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0051] As Figure 1 shown, the present invention includes a main frame 1, a film-feeding device is arranged on the main frame 1, and a product transportation device 6 is arranged at the bottom of the main frame 1. Lifting slide rails 110 and lifting motors 111 are installed on both sides of the main frame 1.

[0052] As Figures 2 to 3As shown in the figure, a lifting slider 112 is provided on the lifting slide rail 110, and a lifting frame 114 is installed on the lifting slide rail 110. A transmission belt 113 connecting to the lifting frame 114 is provided on the lifting motor 111 to drive the lifting of the lifting frame 114. A transverse movement slide rail 121 and a transverse movement cylinder 122 are installed on the lifting frame 114. A transverse movement slider 123 is provided on the transverse movement slide rail 121, and a transverse movement plate 124 connected to the transverse movement cylinder 122 is installed on the transverse movement slider 123. A longitudinal movement slide rail 14 is provided on the transverse movement plate 124, and finger mounting brackets 13 are provided on both sides of the transverse movement plate 124. A longitudinal movement slider 141 cooperating with the longitudinal movement slide rail 14 is installed on the finger mounting bracket 13, and longitudinal movement cylinders 142 connected to the finger mounting brackets 13 on both sides of the transverse movement plate 124 are respectively installed on the transverse movement plate 124.

[0053] As Figures 4 to 6 As shown in the figure, an extension cylinder 131 is installed on the finger mounting bracket 13, and a finger seat 2 is installed on the extension cylinder 131. A pair of mutually cooperating L-shaped fingers 21 are provided on the finger seat 2. A finger roller 211 fixed to the finger seat 2 is provided at the corner of the L-shaped finger 21. A finger cylinder 213 is installed on the finger seat 2, and the finger cylinder 213 is simultaneously connected to one end of a pair of L-shaped fingers 21. Anti-slip strips 212 are provided at the other end of the L-shaped finger 21; an L-shaped support finger 22 is provided on the finger mounting bracket 13 beside the L-shaped finger 21. A support finger roller 221 fixed to the mounting plate is provided at one end of the L-shaped support finger 22. A support cylinder 222 connected to one end of the L-shaped support finger 22 is installed on the mounting plate of the finger mounting bracket 13, and a support pulley 223 is provided at the other end of the L-shaped support finger 22; a film fixing cylinder 231 and a film fixing frame 232 are installed on the finger mounting bracket 13. A film fixing slide bar 233 is provided on the film fixing frame 232. A film clamping plate 234 connected to the film fixing cylinder 231 is provided on the film fixing slide bar 233. A film clamping pulley 235 cooperating with the support pulley 223 is provided on the film clamping plate 234.

[0054] As Figures 7 to 8 As shown in the figure, the product transportation device 6 includes a feeding machine frame 60 and two push plates 61. A number of feeding rollers 62 are arranged on the feeding machine frame 60. A feeding motor 63 drivingly connected to the feeding rollers 62 is installed on the feeding machine frame 60. A pushing slide rail 611 located below the feeding rollers 62 and parallel to the feeding rollers 62 is installed on the feeding machine frame 60. A pushing slider 612 cooperating with the pushing slide rail 611 is provided on the push plate 61. The two push plates 61 are respectively arranged on both sides of the feeding rollers 62. A number of push rods 613 passing through between adjacent two feeding rollers 62 are provided on the push plate 61. A constant force hinge 64 drivingly connected to the other push plate 61 is provided on one push plate 61. A centering cylinder 641 connected to one end of the constant force hinge 64 is installed on the feeding machine frame 60.

[0055] As Figures 9 to 11As shown in the figure, the film feeding device includes a main film releasing frame 31 and a film discharging frame 32. The film discharging frame 32 is installed on the top of the main frame 1. The film discharging frame 32 is provided with a film cutting mechanism 5. The film cutting mechanism 5 includes a cutting plate cylinder 51 and a tool cylinder 52. The cutting plate cylinder 51 is installed with a cutting plate 53. The cutting plate 53 is provided with a film cutting groove 531 and a film sealing groove 532. The film sealing groove 532 is located below the film cutting groove 531. The tool cylinder 52 is installed with a tool holder 54. The tool holder 54 is installed with an adaptive spring mechanism 541 and a cutting tool 542. The cutting tool 542 cooperates with the film cutting groove 531. The adaptive spring mechanism 541 is installed with a hot melt sealing plate 543 that cooperates with the film sealing groove 532. The film discharging frame 32 is installed with a film cutting slide rail 55. Both the cutting plate 53 and the tool holder 54 are provided with film cutting sliders 551 that cooperate with the film cutting slide rail 55.

[0056] The working process of the present invention is as follows:

[0057] The bag film is wound in the film feeding device. The film feeding device transports the bag film to the top of the main frame 1 and passes it through between the cutting plate 53 and the tool holder 54.

[0058] When bagging the product: The feeding motor 63 drives the feeding roller 62 to rotate, so as to transfer the product into the main frame 1. After the product is transferred into the frame, the centering cylinder 641 drives two push plates 61 through the constant force hinge 64 to push the product on the feeding roller 62 to the center; The lifting motors 111 on both sides of the main frame 1 drive the lifting frames 114 to rise on the slide rails to the top of the main frame 1 through the transmission belts 113. There is a height difference after the lifting frames 114 on both sides of the main frame 1 rise to the top of the main machine. At this time, the bag film is located between the lifting frames 114 on both sides of the main frame 1. The transverse movement cylinder 122 drives the transverse movement plate 124 to move towards the central axis of the main frame 1 in the plane where it is located, so that the transverse movement plates 124 on both sides of the main frame 1 approach each other. The longitudinal movement cylinder 142 drives the finger mounting bracket 13 to move on the longitudinal movement slide rail 14 to adjust the position of the finger seat 2 according to the size of the bag film or the product. The extension cylinder 131 drives the central axis of the finger seat 2 to move, so that the finger seats 2 on both sides of the main frame 1 approach each other, so that the finger seats 2 on both sides of the main frame 1 approach each other. The finger cylinder 213 drives a pair of L-shaped fingers 21 to clamp, so that a pair of L-shaped fingers 21 on one side of the main frame 1 and a pair of L-shaped fingers 21 on the other side of the main frame 1 misalignedly pinch the bag film on the top of the main frame 1. After that, the extension cylinder 131 drives the finger seat 2 to reset, so that a pair of L-shaped fingers 21 on one side of the main frame 1 and a pair of L-shaped fingers 21 on the other side of the main frame 1 rub against each other to open and clamp the bag film. After that, the support cylinder 222 drives the L-shaped support finger 22 to eject from the mounting plate, so as to support the opened bag film. When the L-shaped support finger 22 supports the bag film, the film fixing cylinder 231 drives the film fixing frame 232 to move, so that the film clamping pulley 235 presses the bag film onto the L-shaped support finger 22. After that, the lifting motor 111 drives the lifting frame 114 to descend on the slide rail through the transmission belt 113, so as to pull down the opened bag film and put it on the product. After that, the film fixing cylinder 231 drives the film fixing frame 232 to reset, so that the film clamping pulley 235 is separated from the bag film. The support cylinder 222 drives the L-shaped support to reset, so that the L-shaped support finger 22 is separated from the bag film. The finger cylinder 213 drives a pair of L-shaped fingers 21 to open, so that the bag film is separated from the L-shaped fingers 21; After that, the cutting plate cylinder 51 drives the cutting plate 53 to move, the tool cylinder 52 drives the cutting plate 53 to move, and the elastic film pressing member 561 presses the bag film near the cutting knife 542 and the hot melt sealing plate 543 onto the cutting plate 53. At the same time, the cutting knife 542 presses the bag film into the film cutting groove 531 and cuts it, and the hot melt sealing plate 543 presses the bag film into the film sealing groove 532 and seals it.

[0059] The following are specific embodiments of the film feeding device of the present invention, and the following embodiments are combined with the technical features described above. Embodiment

[0060] As Figures 11 to 12As shown in the figure, the film feeding device includes a main film releasing frame 31 and a film discharging frame 32, and the film discharging frame 32 is installed on the top of the main frame 1.

[0061] The main film releasing frame 31 is installed with a main film releasing roller 311 and a secondary film releasing roller 312, and a punching mechanism 4 is arranged beside both the main film releasing roller 311 and the secondary film releasing roller 312.

[0062] A film pulling roller 321 and a roller motor 3211 are installed at the center of the film discharging frame 32. The roller motor 3211 drives the film pulling roller 321 to rotate forward and backward. The film cutting mechanism 5 is located below the film pulling roller 321. A main film pulling cylinder 322 is installed beside one side of the film pulling roller 321. The main film pulling cylinder 322 is installed with a main film pressing roller 3222 that cooperates with one side of the film pulling roller 321. Above the main film pressing roller 3222, a main film guiding roller 3221 that cooperates with the main film releasing roller 311 and the main film pressing roller 3222 is installed; a main film fixing seat 33 and a main film fixing cylinder 331 are arranged between the main film pressing roller 3222 and the main film guiding roller 3221. The main film fixing cylinder 331 is installed with a main film fixing plate 332 that cooperates with the main film fixing seat 33; The main bag film 310 is wound on the main film releasing roller 311. The bag film is pulled out and sequentially passes through the punching mechanism 4 beside the main film releasing roller 311, is supported on the main film guiding roller 3221, passes between the main film fixing seat 33 and the main film fixing plate 332, between the main film pressing roller 3222 and the film pulling roller 321, and between the cutting plate 53 and the tool rest 54.

[0063] A secondary film pulling cylinder 34 is installed beside the other side of the film pulling roller 321. The secondary film pulling cylinder 34 is installed with a secondary film pressing roller 342 that cooperates with the other side of the film pulling roller 321. Above the secondary film pressing roller 342, a secondary film guiding roller 341 that cooperates with the secondary film releasing roller 312 and the secondary film pressing roller 342 is installed. There is a height difference between the main film guiding roller 3221 and the secondary film guiding roller 341; A secondary film fixing seat 35 and a secondary film fixing cylinder 36 are arranged between the secondary film pressing roller 342 and the secondary film guiding roller 341. The secondary film fixing cylinder 36 is installed with a secondary film fixing plate 37 that cooperates with the secondary film fixing seat 35; The secondary bag film 320 is wound on the secondary film releasing roller 312. The bag film is pulled out and sequentially passes through the punching mechanism 4 beside the secondary film releasing roller 312, is supported on the secondary film guiding roller 341, passes between the main film fixing seat 33 and the main film fixing plate 332, between the main film pressing roller 3222 and the film pulling roller 321, and between the cutting plate 53 and the tool rest 54.

[0064] The following is the working process of the film feeding device described in this embodiment:

[0065] When the main bag film 310 is conveyed to the top of the main frame 1: the punching mechanism 4 punches the main bag film 310, and the secondary fixed film cylinder 36 drives the secondary fixed film plate 37 to move, so that the secondary fixed film plate 37 clamps the secondary bag film 320 on the secondary fixed film seat 35, thereby preventing the secondary bag film 320 from flowing back; the main film pulling cylinder 322 drives the main film pressing roller 3222 to move, so that the main film pressing roller 3222 presses the bag film on one side of the film pulling roller 321, and the roller motor 3211 drives the film pulling roller 321 to rotate forward, thereby driving the main bag film 310 to be pulled out from the main film releasing roller 311 and conveyed to the top of the main frame 1.

[0066] When the secondary bag film 320 is conveyed to the top of the main frame 1: the punching mechanism 4 punches the secondary bag film 320, and the main fixed film cylinder 331 drives the main fixed film plate 332 to move, so that the main fixed film plate 332 clamps the main bag film 310 on the main fixed film seat 33, thereby preventing the main bag film 310 from flowing back; the secondary film pulling cylinder 34 drives the secondary film pressing roller 342 to move, so that the secondary film pressing roller 342 presses the bag film on the other side of the film pulling roller 321, and the roller motor 3211 drives the film pulling roller 321 to rotate reversely, thereby driving the secondary bag film 320 to be pulled out from the secondary film releasing roller 312 and conveyed to the top of the main frame 1. Embodiment

[0067] As Figures 13 to 14 As shown, the film feeding device includes a main film releasing frame 31, a spare film releasing frame 302 and a film discharging frame 32. The film discharging frame 32 is installed on the top of the main frame 1. The main film releasing frame 31 is equipped with a main film releasing roller 311, the spare film releasing frame 302 is equipped with a secondary film releasing roller 312, and a punching mechanism 4 is arranged beside both the main film releasing roller 311 and the secondary film releasing roller 312.

[0068] A film pulling roller 321 and a roller motor 3211 are installed at the center of the film discharging frame 32. The roller motor 3211 drives the film pulling roller 321 to rotate forward and backward. The film cutting mechanism 5 is located below the film pulling roller 321. A main film pulling cylinder 322 is installed beside one side of the film pulling roller 321. The main film pulling cylinder 322 is equipped with a main film pressing roller 3222 that cooperates with one side of the film pulling roller 321. Above the main film pressing roller 3222, a main film guiding roller 3221 that cooperates with the main film releasing roller 311 and the main film pressing roller 3222 is installed; a main fixed film seat 33 and a main fixed film cylinder 331 are arranged between the main film pressing roller 3222 and the main film guiding roller 3221. The main fixed film cylinder 331 is equipped with a main fixed film plate 332 that cooperates with the main fixed film seat 33; the main bag film 310 is wound on the main film releasing roller 311, and the bag film is pulled out and sequentially passes through the punching mechanism 4 beside the main film releasing roller 311, is carried on the main film guiding roller 3221, passes between the main fixed film seat 33 and the main fixed film plate 332, between the main film pressing roller 3222 and the film pulling roller 321, and between the cutting plate 53 and the tool rest 54.

[0069] On the other side of the film pulling roller 321, a secondary film pulling cylinder 34 is installed. The secondary film pulling cylinder 34 is equipped with a secondary film pressing roller 342 that cooperates with the other side of the film pulling roller 321. Above the secondary film pressing roller 342, a secondary film guiding roller 341 that cooperates with the secondary film releasing roller 312 and the secondary film pressing roller 342 is installed; between the secondary film pressing roller 342 and the secondary film guiding roller 341, a secondary film fixing seat 35 and a secondary film fixing cylinder 36 are provided. The secondary film fixing cylinder 36 is equipped with a secondary film fixing plate 37 that cooperates with the secondary film fixing seat 35; the secondary bag film 320 is wound on the secondary film releasing roller 312. The bag film is pulled out and sequentially passes through the punching mechanism 4 beside the secondary film releasing roller 312, is carried on the secondary film guiding roller 341, passes between the main film fixing seat 33 and the main film fixing plate 332, between the main film pressing roller 3222 and the film pulling roller 321, and between the cutting plate 53 and the tool rest 54.

[0070] The following is the working process of the film feeding device described in this embodiment:

[0071] When the main bag film 310 is conveyed to the top of the main frame 1: The punching mechanism 4 punches the main bag film 310. The secondary film fixing cylinder 36 drives the secondary film fixing plate 37 to move, so that the secondary film fixing plate 37 clamps the secondary bag film 320 on the secondary film fixing seat 35, thereby preventing the secondary bag film 320 from flowing back; the main film pulling cylinder 322 drives the main film pressing roller 3222 to move, so that the main film pressing roller 3222 presses the bag film on one side of the film pulling roller 321. The roller motor 3211 drives the film pulling roller 321 to rotate forward, thereby driving the main bag film 310 to be pulled out from the main film releasing roller 311 and conveyed to the top of the main frame 1.

[0072] When the secondary bag film 320 is conveyed to the top of the main frame 1: The punching mechanism 4 punches the secondary bag film 320. The main film fixing cylinder 331 drives the main film fixing plate 332 to move, so that the main film fixing plate 332 clamps the main bag film 310 on the main film fixing seat 33, thereby preventing the main bag film 310 from flowing back; the secondary film pulling cylinder 34 drives the secondary film pressing roller 342 to move, so that the secondary film pressing roller 342 presses the bag film on the other side of the film pulling roller 321. The roller motor 3211 drives the film pulling roller 321 to rotate reversely, thereby driving the secondary bag film 320 to be pulled out from the secondary film releasing roller 312 and conveyed to the top of the main frame 1.

[0073] The following is the specific structure of the punching mechanism 4 described in Embodiment 1 and Embodiment 2:

[0074] As Figure 15 shown, the punching mechanism 4 includes a film supporting seat 41 and a punching cylinder 42. The film supporting seat is provided with a punching groove 43. The punching cylinder 42 is equipped with a pressing plate 44 that cooperates with the film supporting seat 41. The pressing plate 44 is provided with a punching knife 45 that cooperates with the punching groove.

[0075] The bag film passes through between the film supporting seat and the pressing plate 44, and the punching cylinder 42 drives the pressing plate 44 to press downwards so that the punching knife 45 punches the bag film.

[0076] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An imitation finger-type automatic bagging machine, which comprises a main frame (1), and is characterized in that: The main frame (1) is provided with a film feeding device. A product transportation device (6) is arranged at the bottom of the main frame (1). Lifting slide rails (110) and lifting motors (111) are installed on both sides of the main frame (1). Lifting sliders (112) are arranged on the lifting slide rails (110). The lifting slide rails (110) are provided with a lifting frame (114). The lifting motor (111) is provided with a transmission belt (113) connected to the lifting frame (114). The lifting frame (114) is installed with a transverse movement slide rail (121) and a transverse movement cylinder (122). The transverse movement slide rail (121) is provided with a transverse movement slider (123). The transverse movement slider (123) is installed with a transverse movement plate (124) connected to the transverse movement cylinder (122). Clamp finger mounting frames (13) are arranged on both sides of the transverse movement plate (124). The clamp finger mounting frames (13) are installed with extension cylinders (131). The extension cylinders (131) are installed with clamp finger seats (2). One side of the clamp finger seat (2) is provided with a pair of mutually cooperating L-shaped clamp fingers (21). A clamp finger roller (211) fixed to the clamp finger seat (2) is arranged at the corner of the L-shaped clamp finger (21). The clamp finger seat (2) is installed with a clamp finger cylinder (213). The clamp finger cylinder (213) is simultaneously connected to one end of a pair of the L-shaped clamp fingers (21). The other end of the L-shaped clamp finger (21) is provided with an anti-slip strip (212). The film feeding device includes a main film releasing frame (31) and a film discharging frame (32). The main film releasing frame (31) is installed with a main film releasing roller (311). A punching mechanism (4) is arranged beside the main film releasing roller (311). The punching mechanism (4) includes a film supporting seat (41) and a punching cylinder (42). The film supporting seat (41) is provided with a punching groove (43). The punching cylinder (42) is installed with a pressing plate (44) cooperating with the film supporting seat (41). The pressing plate (44) is provided with a punching knife (45) cooperating with the punching groove (43). The film discharging frame (32) is installed on the top of the main frame (1). The film discharging frame (32) is installed with a film pulling roller (321), a roller motor (3211), a main film pulling cylinder (322) and a main film guiding roller (3221). The roller motor (3211) is in transmission connection with the film pulling roller (321). The main film pulling cylinder (322) is installed with a main film pressing roller (3222) cooperating with one side of the film pulling roller (321). The main film guiding roller (3221) cooperates with the main film releasing roller (311) and the main film pressing roller (3222). A film cutting mechanism (5) is arranged below the film pulling roller (321). A main film fixing seat (33) and a main film fixing cylinder (331) are arranged above the main film pressing roller (3222). The main film fixing cylinder (331) is installed with a main film fixing plate (332) cooperating with the main film fixing seat (33).

2. The finger - like automatic bagging machine according to claim 1, wherein: The main film releasing frame (31) is further installed with a secondary film releasing roller (312). The secondary film releasing roller (312) is located below the main film releasing roller (311) and is provided with the punching mechanism (4). The film output frame (32) is further installed with a secondary film pulling cylinder (34) and a secondary film guiding roller (341). The secondary film pulling cylinder (34) is installed with a secondary film pressing roller (342) that cooperates with the other side of the film pulling roller (321). The secondary film guiding roller (341) cooperates with the secondary film releasing roller (312) and the secondary film pressing roller (342). A secondary film fixing seat (35) and a secondary film fixing cylinder (36) are arranged between the secondary film pressing roller (342) and the secondary film guiding roller (341). The secondary film fixing cylinder (36) is installed with a secondary film fixing plate (37) that cooperates with the secondary film fixing seat (35).

3. The finger-like automatic bagging machine according to claim 1, characterized in that: The finger mounting bracket (13) is provided with an L-shaped supporting finger (22) beside the L-shaped finger (21). One end of the L-shaped supporting finger (22) is provided with a supporting finger roller (221) fixed to the mounting plate. The finger mounting bracket (13) is installed with a supporting cylinder (222) connected to one end of the L-shaped supporting finger (22). The other end of the L-shaped supporting finger (22) is provided with a supporting pulley (223).

4. The finger-like automatic bagging machine according to claim 3, characterized in that: The finger mounting bracket (13) is installed with a film fixing cylinder (231) and a film fixing frame (232). The film fixing frame (232) is provided with a film fixing slide rod (233). The film fixing slide rod (233) is provided with a film clamping plate (234) connected to the film fixing cylinder (231). The film clamping plate (234) is provided with a film clamping pulley (235) that cooperates with the supporting pulley (223).

5. The finger-like automatic bagging machine according to claim 4, wherein: The transverse movement plate (124) is provided with a longitudinal movement slide rail (14). The finger mounting bracket (13) is installed with a longitudinal movement slider (141) that cooperates with the longitudinal movement slide rail (14). The transverse movement plate (124) is respectively installed with longitudinal movement cylinders (142) connected to the finger mounting brackets (13) on both sides of the transverse movement plate (124).

6. The finger - like automatic bagging machine according to claim 5, wherein: The film cutting mechanism (5) includes a cutting plate cylinder (51) and a tool cylinder (52). The cutting plate cylinder (51) is installed with a cutting plate (53). The cutting plate (53) is provided with a film cutting groove (531) and a film sealing groove (532). The film sealing groove (532) is located below the film cutting groove (531). The tool cylinder (52) is installed with a tool holder (54). The tool holder (54) is installed with an adaptive spring mechanism (541) and a cutting tool (542). The cutting tool (542) cooperates with the film cutting groove (531). The adaptive spring mechanism (541) is installed with a hot melt sealing plate (543) that cooperates with the film sealing groove (532).

7. The finger - like automatic bagging machine according to claim 6, characterized in that: The film discharging frame (32) is equipped with film cutting slide rails (55) located below the two ends of the film pulling roller (321), and the cutting plate (53) and the knife holder (54) are both provided with film cutting sliders (551) cooperating with the film cutting slide rails (55); the upper and lower sides of the knife holder (54) are both provided with film pressing plates (56), and the film pressing plate (56) is provided with a plurality of elastic film pressing parts (561) cooperating with the cutting plate (53).

8. A finger-like automatic bagging machine according to any one of claims 1 to 5, characterized in that: The product transport device (6) comprises a feed frame (60) and two push plates (61), wherein the feed frame (60) is provided with a plurality of feed rollers (62) arranged in an array, the feed frame (60) is provided with a feed motor (63) drivingly connected to the feed rollers (62), the feed frame (60) is provided with a push rail (611) located below the feed rollers (62) and parallel to the feed rollers (62), and the push plate (61) is provided with a push rail (611) drivingly connected to the feed rollers (62). (611) cooperates with a pushing slider (612), the two pushing plates (61) are respectively arranged on both sides of the feeding roller (62), the pushing plate (61) is provided with a plurality of pushing rods (613) passing through two adjacent feeding rollers (62), one pushing plate (61) is provided with a constant force hinge (64) which is transmission-connected with the other pushing plate (61), and the feeding frame (60) is installed with a centering cylinder (641) connected to one end of the constant force hinge (64).

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