High-speed packaging machine and packaging process

Abstract

The invention discloses a high-speed packaging machine and a packaging process, and relates to the technical field of heat shrinkage film corner cutting packaging. The high-speed packaging machine comprises a film supply device used for expanding a folded double-layer film, so that a containing space is formed between the double-layer film; the feeding device is used for continuously pushing the packing materials into the accommodating space from the first opening or the second opening according to a certain rhythm; a hot cutting mechanism of the edge sealing device is used for performing edge sealing and hot cutting on the double-layer film of the second opening; and a double-edged knife assembly of the cutting device is used for cutting the double-layer film sealing edge between two adjacent packaging materials into independent packaging materials, and meanwhile, four regular corners which can be conveniently cut off in the subsequent corner cutting procedure are formed. By integrating a plurality of working procedures such as film supplying, feeding, edge sealing and corner cutting, continuous operation is performed in the product moving process, and high-speed corner cutting packaging is achieved. And meanwhile, it is ensured that hot cutting lines of the four corners of the packaging material are well attached to the edges of the product, and the high-quality and attractive requirements of high-end product packaging are met.

Description

Technical Field

[0001] The invention relates to the technical field of heat shrink film corner cutting packaging, and in particular to a high-speed packaging machine and a packaging process. Background Art

[0002] In a commercial society, companies generally pay attention to the design and quality of product packaging in order to improve product image and enhance market competitiveness. For electronic products, food, cosmetics, medical supplies and other commodities, exquisite packaging can not only attract consumers' attention, but also play a role in protecting against moisture, dust and scratches. Therefore, wrapping the outer surface of the packaging with a layer of transparent film has become the choice of many companies.

[0003] However, the existing packaging machines and packaging processes have certain deficiencies in efficiency. Traditional packaging machines often adopt the mode of intermittent reciprocating motion, which leads to low packaging efficiency. The packaging cycle (CT) of a single product is as long as 3 seconds or even longer, which cannot meet the needs of modern industrial production for efficient and fast packaging. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a high-speed packaging machine and a packaging process. The high-speed packaging machine includes: a film supply device, the film supply device is used to open the folded double-layer film to form a containing space between the double-layer film, and the containing space has a first opening and a second opening; A feeding device, the feeding device is used to push the packages into the accommodating space continuously from the first opening or the second opening according to a certain rhythm; An edge sealing device, the edge sealing device comprising a heat cutting mechanism, the heat cutting mechanism is used to heat cut the edge of the double-layer film of the second opening; A cutting device, the cutting device comprising a double-edged knife assembly, the double-edged knife assembly comprising a first blade and a second blade arranged in parallel, the first blade and the second blade being used to cut the edge sealing of the double-layer film between two adjacent packages; A corner cutting device is used to straighten the corners of the packaging bag packaged on the surface of the packaging object and cut off the straightened corners.

[0005] In a possible implementation of the present application, the cutting device further includes a bottom knife assembly and a driving assembly, and the driving assembly is used to drive the double-edged knife assembly and the bottom knife assembly to move synchronously toward each other.

[0006] In a possible implementation of the present application, the driving assembly includes a connecting rod mechanism, and the connecting rod mechanism includes a first connecting rod and a second connecting rod, the first connecting rod is connected to the double-edged knife assembly, the second connecting rod is connected to the bottom knife assembly, and the first connecting rod and the second connecting rod are connected through a transmission assembly to achieve synchronous movement.

[0007] In a possible implementation of the present application, the cutting device also includes a first cam and a second cam, the first connecting rod is connected to the first cam via a cam roller, the second connecting rod is connected to the second cam via a cam roller, the first cam and the second cam are arranged on the same plane, the first cam and the second cam are symmetrically arranged, the first cam and the second cam both include a curved segment and a straight segment, when the first connecting rod moves to the straight segment of the first cam, the second connecting rod moves to the straight segment of the second cam, and at this time the double-edged knife assembly is engaged with the bottom knife assembly.

[0008] In a possible implementation of the present application, the hot cutting mechanism includes an edge banding hot cutting knife and an edge banding bottom knife, the edge banding hot cutting knife is connected to a breakpoint swing rod, and the breakpoint swing rod is used to drive the edge banding hot cutting knife away from or close to the edge banding bottom knife.

[0009] In a possible implementation of the present application, one end of the breakpoint swing arm is connected to the edge-sealing hot cutting knife, and the other end is connected to a first rotating shaft, and the edge-sealing hot cutting knife can move around the first rotating shaft.

[0010] In a possible implementation of the present application, the edge banding hot cutting knife is arranged vertically to the breakpoint swing arm, a first roller is arranged on the breakpoint swing arm, the first roller is slidably connected to the swing block, and the contact surface between the swing block and the first roller includes a raised section.

[0011] In a possible implementation of the present application, the swing block includes a first transverse groove, a second rotating shaft is provided on one side of the first transverse groove, the swing block is connected to the second rotating shaft, and the second roller is connected to the first transverse groove.

[0012] The present invention also provides a packaging process, including: film supply, a film supply device stretches out a folded double-layer film to form a accommodating space between the double-layer films, and the accommodating space has a first opening and a second opening; feeding, a feeding device pushes the package into the accommodating space from the first opening or the second opening; edge sealing, a hot cutting mechanism hot-cuts the edge of the double-layer film at the second opening; and cutting, a first blade and a second blade of a double-edged knife assembly cut the edge of the double-layer film between two adjacent packages.

[0013] In a possible implementation of the present application, the packaging process also includes a corner cutting process. After the cutting process, the cut packages are fed into a corner cutting device. The corner cutting device straightens the corners of the packaging bag on the surface of the packages and cuts off the straightened corners.

[0014] Compared with the prior art, the high-speed packaging machine provided by the present invention can continuously operate during the movement of the product by integrating multiple processes such as film supply, material feeding, edge sealing and corner cutting, thus realizing high-speed corner cutting packaging. The double-edged knife assembly of the cutting device is used to cut the double-layer film edge sealing between two adjacent packages into independent packages, and at the same time form four regular corners that can be cut off in the subsequent corner cutting process. Compared with the traditional packaging machine with intermittent reciprocating motion, the high-speed packaging machine provided by the present invention has a faster continuous motion speed, and the packaging cycle of a single product can be shortened, which greatly improves the packaging efficiency and meets the needs of modern industrial production for efficient packaging. The cutting device provided by the present application not only ensures the tightness of the packaging, but also reduces the packaging surplus. The packaging surplus can be controlled within a range of less than or equal to 8mm, which effectively avoids the problem that the gap between the packaging bag and the product is too large in the traditional packaging process and the four corners cannot form a regular shape. At the same time, it ensures that the hot cutting lines of the four corners of the package are well fitted with the edges of the product, meeting the high-quality and beautiful requirements of high-end product packaging. The heat cutting mechanism of the edge sealing device can heat cut the double-layer film edge of the second opening to ensure the sealing of the package. The corners of the package can be shaped after cutting, which provides a basis for the subsequent corner trimming and cutting processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0016] Figure 1 It is a structural schematic diagram of a high-speed packaging machine provided by the present invention; Figure 2 yes Figure 1 A top view of Figure 3 is a schematic diagram of the structure of a double-layer film in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a cutting device in an embodiment of the present invention; Figure 5 is another structural schematic diagram of the cutting device in an embodiment of the present invention; Figure 6 is a schematic structural diagram of a double-edged knife assembly in an embodiment of the present invention; Figure 7 is another structural schematic diagram of the double-edged knife assembly in an embodiment of the present invention; Figure 8 is a schematic cross-sectional structure diagram of a cutting device according to an embodiment of the present invention; Fig. 9 is a schematic structural diagram of a first cam and a second cam in an embodiment of the present invention; Fig.10 is a schematic structural diagram of an edge sealing device in an embodiment of the present invention; Fig.11 is another structural schematic diagram of the edge sealing device in an embodiment of the present invention; Fig.12 It is a flow chart of a packaging process provided by the present invention; Fig.13 is a schematic diagram of the cutting step in an embodiment of the present invention; Fig.14 Schematic diagram of edge sealing and cutting effects in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] The terms "first", "second", etc. in the embodiments of the present invention are only used to distinguish related technical features and do not represent the order of precedence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0019] In the present application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0020] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0021] The present invention provides a high-speed packaging machine, which can continuously operate during the movement of the product by integrating multiple processes such as film supply, material feeding, edge sealing and corner cutting, thereby realizing high-speed corner cutting packaging. Compared with the traditional packaging machine with intermittent reciprocating motion, the continuous motion speed is faster, the packaging cycle of a single product can be further shortened, the packaging efficiency is improved, and the demand for efficient packaging in modern industrial production is met. The cutting device provided by the present application not only ensures the tightness of the packaging, but also reduces the packaging surplus. The double-edged knife assembly of the cutting device is used to cut the double-layer film edge sealing between two adjacent packages into independent packages, and at the same time form four regular corners that can be cut off in the subsequent corner cutting process. The packaging surplus can be controlled within a range of less than or equal to 8mm, which effectively avoids the problem that the gap between the packaging bag and the product is too large in the traditional packaging process and the four corners cannot form a regular shape. At the same time, it ensures that the hot cutting lines of the four corners on the package are well fitted with the edges of the product, meeting the high-quality and aesthetic requirements of high-end product packaging. Example

[0022] The embodiment of the present invention provides a high-speed packaging machine, such as Figures 1 to 11 As shown, the high-speed packaging machine includes: a film supply device 10, the film supply device 10 is used to open the folded double-layer film to form a containing space 110 between the double-layer film, and the containing space 110 has a first opening 120 and a second opening 130; a feeding device 40, the feeding device 40 is used to continuously push the packaged object from the first opening 120 or the second opening 130 into the containing space 110 according to a certain beat; an edge sealing device 20, the edge sealing device 20 includes a hot cutting mechanism 210, and the hot cutting mechanism 210 is used to cut the second opening 120 and the second opening 130. 30 for hot cutting of the double-layer film edge sealing; a cutting device 30, the cutting device 30 includes a double-edged knife assembly 310, the double-edged knife assembly 310 includes a first blade 3110 and a second blade 3120 arranged in parallel, the first blade 3110 and the second blade 3120 are used to cut the double-layer film edge sealing between two adjacent packages, and at the same time form four regular corners that can be cut off in the subsequent corner cutting process; a corner cutting device 50, the corner cutting device 50 is used to straighten the corners of the packaging bag packaged on the surface of the packaging, and cut off the straightened corners.

[0023] By using the high-speed packaging machine provided by the present application, a series of actions such as bag making can be completed synchronously during the product movement process, and the continuous movement speed is fast, which can reach CT=1S. The packaging margin is not large, and can be less than or equal to 8mm. After cutting, the corners of the package can be formed, and the corner trimming and cutting can be continued. After the corner trimming and cutting process, heat shrinking can also be performed. Heat shrinking can be achieved through other auxiliary equipment.

[0024] The compatibility with high-speed packaging machines can be increased by changing the relative starting position between the feeding device 40 and the cutting device 30 .

[0025] This high-speed packaging machine is not only suitable for the packaging of square packaging materials, but also for the packaging of products of other shapes and sizes. In addition, the cut packaging materials can also be heat-shrunk, and the heat-shrinking function can be realized through other auxiliary equipment to further enhance the tightness and protection of the packaging. Since this high-speed packaging machine improves the packaging efficiency and optimizes the packaging effect, the packaging cost per unit product can be reduced. At the same time, the continuous motion operation mode can reduce the downtime of the equipment, further reducing the production cost.

[0026] like Figure 3 As shown, the present application generally adopts a folded or double-layer film, and the film supply device 10 stretches the folded double-layer film to form a receiving space 110 between the double-layer films. The receiving space 110 has a first opening 120 and a second opening 130 .

[0027] In this way, the film supply device 10 stretches the folded double-layer film to form a receiving space 110. At the same time, since a natural separation has been formed between the double-layer films, the feeding device 40 can more accurately push the package into the receiving space 110, reducing the possibility of operational errors. The double-edged knife assembly 310 of the cutting device 30 can accurately cut the edge of the double-layer film between two adjacent packages, so that each package becomes an independent unit. This facilitates the subsequent corner trimming and corner cutting processing, as well as possible heat shrinking processing.

[0028] like Figures 4 to 8 As shown, in some embodiments, the cutting device 30 further includes a bottom knife assembly 320 and a driving assembly 330 , and the driving assembly 330 is used to drive the double-edged knife assembly 310 and the bottom knife assembly 320 to move toward each other synchronously.

[0029] In some embodiments, the driving assembly 330 includes a connecting rod mechanism 3310, and the connecting rod mechanism 3310 includes a first connecting rod 33110 and a second connecting rod 33120. The first connecting rod 33110 is connected to the double-edged knife assembly 310, and the second connecting rod 33120 is connected to the bottom knife assembly 320. The first connecting rod 33110 and the second connecting rod 33120 are connected through the transmission assembly 3320 to achieve synchronous movement.

[0030] In some embodiments, the cutting device 30 further includes a first cam 340 and a second cam 350, the first connecting rod 33110 is connected to the first cam 340 via a cam roller, the second connecting rod 33120 is connected to the second cam 350 via a cam roller, and the first cam 340 and the second cam 350 are arranged on the same plane.

[0031] In this way, by driving the double-edged knife assembly 310 and the bottom knife assembly 320 to move synchronously and continuously toward each other through the driving assembly 330, it can be ensured that the cutting action is more accurate and stable. This reduces the error in the cutting process, improves the cutting accuracy, and also speeds up the cutting speed, thereby improving the overall packaging efficiency. The connecting rod mechanism 3310 includes a first connecting rod 33110 and a second connecting rod 33120, which respectively connect the double-edged knife assembly 310 and the bottom knife assembly 320, and realize linkage through the transmission assembly 3320. This makes the movement of the double-edged knife assembly 310 and the bottom knife assembly 320 more stable and coordinated, and avoids the problem of cutting quality caused by asynchronous movement. The first connecting rod 33110 is slidably connected to the first cam 340, and the second connecting rod 33120 is slidably connected to the second cam 350, and the two are arranged on the same plane.

[0032] like Fig. 9 As shown, in some embodiments, the first cam 340 and the second cam 350 are symmetrically arranged, and the first cam 340 and the second cam 350 both include a curved segment and a straight segment. When the first connecting rod 33110 moves to the straight segment of the first cam 340, the second connecting rod 33120 moves to the straight segment of the second cam 350, and at this time, the double-edged knife assembly 310 is engaged with the bottom knife assembly 320.

[0033] It can be understood that the connecting rod mechanism 3310 rotates continuously to drive the double-edged knife assembly 310. Due to the characteristics of the connecting rod mechanism 3310, the double-edged knife assembly 310 can maintain vertical movement and complete the cutting step in the straight section of the cam.

[0034] It can be understood that the first cam 340 and the second cam 350 are symmetrically arranged to ensure the precise synchronization of the double-edged knife assembly 310 and the bottom knife assembly 320 during the cutting process. When the first connecting rod 33110 moves to the straight section of the first cam 340, the second connecting rod 33120 simultaneously moves to the straight section of the second cam 350, at which time the double-edged knife assembly 310 accurately abuts against the bottom knife assembly 320, achieving a precise cutting action. The connecting rod mechanism 3310 rotates continuously to drive the double-edged knife assembly 310 to move. Due to the characteristics of the connecting rod mechanism 3310, the double-edged knife assembly 310 can maintain vertical movement, avoiding the problem of unstable cutting quality caused by changes in the direction of movement. This vertical cutting method is more stable and reliable, and improves the cutting accuracy. The present application completes the cutting step in the straight section of the cam, optimizing the cutting efficiency. The symmetrically arranged cam and the fixed cam simplify the structure of the cutting device 30 and reduce the number of parts. It can reduce the manufacturing cost and improve the reliability and stability of the cutting device 30.

[0035] like Fig.10 and Fig.11As shown, in some embodiments, the hot cutting mechanism 210 includes an edge-sealing hot cutting knife 2110 and an edge-sealing bottom knife 2120 . The edge-sealing hot cutting knife 2110 is connected to a breakpoint swing rod 2130 . The breakpoint swing rod 2130 is used to drive the edge-sealing hot cutting knife 2110 away from or close to the edge-sealing bottom knife 2120 .

[0036] In some embodiments, one end of the breakpoint swing arm 2130 is connected to the edge-sealing hot cutting knife 2110 , and the other end is connected to the first rotating shaft 2140 , and the edge-sealing hot cutting knife 2110 can move around the first rotating shaft 2140 .

[0037] In some embodiments, the edge banding hot cutting knife 2110 is arranged perpendicularly to the breakpoint rocker 2130, and a first roller 21310 is arranged on the breakpoint rocker 2130. The protruding direction of the first roller 21310 is perpendicular to the breakpoint rocker 2130 and is arranged between the edge banding hot cutting knife 2110 and the first rotating shaft 2140. The first roller 21310 is slidably connected to the swing block 2150, and the contact surface between the swing block 2150 and the first roller 21310 includes a protruding section 21510.

[0038] Of course, the first roller 21310 can also be arranged on the edge banding hot cutting knife 2110, the edge banding bottom knife 2120, the breakpoint rocker 2130 or other components, as long as the setting structure can disconnect or connect the edge banding hot cutting knife 2110 and the edge banding bottom knife 2120 by driving the first roller 21310.

[0039] In some embodiments, the swing block 2150 includes a first transverse groove 21520 , a second rotating shaft 2160 is disposed on one side of the first transverse groove 21520 , the swing block 2150 is connected to the second rotating shaft 2160 , and the second roller 2170 is connected to the first transverse groove 21520 .

[0040] The edge banding device 20 may further include a first long groove 21530, a third roller 21540, a swing plate 2180, and a driving wheel 2190. It is understandable that the edge banding hot cutting knife 2110 and the edge banding bottom knife 2120 cooperate with each other to complete the edge banding hot cutting. The edge banding hot cutting knife 2110 or the edge banding bottom knife 2120 may move around the first rotating shaft 2140 through the breakpoint swing rod 2130. When the edge banding hot cutting knife 2110 or the edge banding bottom knife 2120 moves around the first rotating shaft 2140 through the breakpoint swing rod 2130, the edge banding hot cutting knife 2110 is disconnected from the edge banding bottom knife 2120 to stop the edge banding hot cutting operation.

[0041] Specifically, the second roller 2170 can be installed on the swing plate 2180, one end of which is matched with the driving wheel 2190, and the other end is slidably connected with the first transverse groove 21520. More specifically, one end of the second roller 2170 can be matched with the wheel groove on the driving wheel 2190, so that when the driving wheel 2190 rotates, the swing plate 2180 can be driven to move by the second roller 2170. The second rotating shaft 2160 can be the hinge point of the swing block 2150 and the swing plate 2180. The third roller 21540 is matched with the first long groove 21530 of the swing block 2150, so that the swing plate 2180 can drive the swing block 2150 to move or swing through the third roller 21540.

[0042] In this way, the edge banding hot cutting knife 2110 or the edge banding bottom knife 2120 is installed on the breakpoint swing rod 2130, and the swing block 2150 drives the breakpoint swing rod 2130 to move through the first roller 21310, so that the edge banding hot cutting knife 2110 is disengaged from the edge banding bottom knife 2120, interrupting the edge banding hot cutting, and the interrupted part forms the breakpoint part.

[0043] The edge banding hot cutting knife 2110 is connected to the first rotating shaft 2140 through the breakpoint swing rod 2130 and can move around the first rotating shaft 2140. This allows the edge banding hot cutting knife 2110 to move away from or close to the edge banding bottom knife 2120 as needed, accurately controlling the start and end of edge banding hot cutting, and ensuring the stability and consistency of edge banding quality. The protruding direction of the first roller 21310 is perpendicular to the breakpoint swing rod 2130, and is slidably connected to the protruding section 21510 on the swing block 2150. When the driving wheel 2190 rotates, the protruding section 21510 pushes the first roller 21310, thereby driving the breakpoint swing rod 2130 and the edge banding hot cutting knife 2110 to move, thereby realizing the interruption or resumption of edge banding hot cutting. The second roller 2170 is installed on the swing plate 2180 and is arranged in cooperation with the wheel groove on the driving wheel 2190. When the driving wheel 2190 rotates, the swing plate 2180 is driven to move through the second roller 2170, and then the swing block 2150 and the breakpoint swing rod 2130 are driven to move through the third roller 21540. This efficient driving and motion transmission mechanism ensures the rapid response and stability of the edge banding hot cutting action. When the edge banding hot cutting knife 2110 or the edge banding bottom knife 2120 moves around the first rotating shaft 2140 through the breakpoint swing rod 2130, the contact between the two is disconnected, thereby forming a breakpoint part. This can not only optimize the formation process of the edge banding breakpoint, but also reduce the thermal stress caused by continuous edge banding hot cutting, thereby improving the edge banding quality. By integrating components such as the first cam 340, the second cam 350, the swing block 2150, and the swing plate 2180, the structure of the edge banding device 20 is simplified and the number of parts is reduced. An embodiment of the present invention also provides a packaging process, such as Fig.12 As shown, the packaging process includes the following steps: S110: film supply, the film supply device 10 will be folded double film open, so that the double film is formed between the accommodating space 110, the accommodating space 110 having a first opening 120 and a second opening 130; S120: feeding, the feeding device 40 pushes the packages into the accommodating space 110 from the first opening 120 or the second opening 130 continuously at a certain rhythm; S130: Edge sealing: the heat cutting mechanism 210 heat-cuts the double-layer film of the second opening 130; S140: Cutting: The first blade 3110 and the second blade 3120 of the double-edged knife assembly 310 cut the double-layer film edge seal between two adjacent packages to form independent packages, and at the same time form four regular corners that can be cut off in the subsequent corner cutting process.

[0044] S150: Corner cutting: the cut package is sent to a corner cutting device, which straightens the corners of the packaging bag on the surface of the package and cuts off the straightened corners.

[0045] S160: Heat shrinking: the finished packaging bag is heated and shrunk in the film heat shrinking mechanism and adheres to the surface of the packaging.

[0046] This process realizes the full automation from raw materials to finished products through film supply, material feeding, edge sealing, cutting, corner cutting and heat shrinking. This efficient automated packaging method not only improves production efficiency, but also reduces dependence on manual operation and reduces production costs.

[0047] A double-layer film folded in half is used as the packaging material, and the film supply device 10 is used to open the accommodating space 110, which ensures the stable placement of the packaged object. At the same time, the precise coordination of the heat cutting mechanism 210, the double-edged knife assembly 310, the corner cutting device and the film heat shrinking mechanism further ensures the stability and consistency of the packaging quality. The corner cutting step ensures the flatness and beauty of the corners of the packaging bag, improving the overall visual effect of the product. At the same time, the heat shrinking step makes the packaging bag fit closely to the surface of the packaged object, avoiding the problem of looseness or wrinkling of the packaging bag, and further improving the appearance quality of the product.

[0048] like Fig.12 The figure can be understood as a side view schematic diagram of the cutting step of the present application. After the two packages have gone through the edge sealing step, the double-layer film edge sealing between the two adjacent packages is cut by the double-edged knife assembly 310 .

[0049] It can be understood that the first blade 3110 and the second blade 3120 of the double-edged knife assembly 310 can accurately cut the double-layer film edge seal between two adjacent packages, thereby achieving accurate separation of the packages. This precise separation method avoids mutual adhesion or misalignment of the packages, and ensures the independence and integrity of each package.

[0050] The packaging efficiency can be significantly improved by the fast cutting action of the double-edged knife assembly 310. Compared with manual cutting or other inefficient cutting methods, the double-edged knife assembly 310 can complete the cutting of a large number of packages in a short time, thereby shortening the production cycle and improving the overall production efficiency.

[0051] like Fig.13 The figure shown in the figure can be understood as a top view demonstration of the cut-off effect after the edge sealing and cutting steps of the present application. The two solid lines above and below the package can be understood as the folding and opening positions of the double-layer film. Generally, the solid line above the package can be understood as the folding position of the double-sided film, and the dotted line can be understood as the film portion cut off in the edge sealing and cutting steps.

[0052] By adopting the packaging process provided by the present application, a series of actions such as bag making can be completed synchronously during the movement of the product, and the continuous movement speed is fast, which can further shorten the packaging time. The packaging margin is not large, and can be less than or equal to 8mm. After cutting, the corners of the package can be formed, and the corner trimming and cutting can be continued. After the corner trimming and cutting process, heat shrinking can also be performed. Heat shrinking can be achieved through other auxiliary equipment.

[0053] like Fig.14 As shown, more specifically, the edge sealing step can be subjected to breakpoint processing during the hot cutting of the double-layer film edge sealing of the second opening 130. The breakpoint processing can be understood as stopping the edge sealing hot cutting at the location where the breakpoint is needed. Generally, it can be understood as stopping the edge sealing hot cutting at the gap between the two packages, and then cutting off the film between the two packages through the subsequent cutting step. In this way, by adding the breakpoint processing, the film waste cut horizontally in the edge sealing step and the film waste cut vertically in the cutting step are connected together, which is more convenient for waste collection. No additional negative pressure suction is required.

[0054] The packaging process provided by the embodiment of the present invention has good compatibility and can adapt to different sizes of objects to be packaged. Of course, breakpoint processing is not necessary.

[0055] In this way, in the edge sealing step, the edge sealing and hot cutting can be stopped at the location where the breakpoint is needed through the breakpoint processing. The edge sealing and hot cutting is stopped at the gap between the two packages, and then the film between the two packages is cut through the subsequent cutting step. This processing method allows the film waste cut horizontally and the film waste cut vertically to be connected together, which is more convenient for waste collection and processing, and reduces production costs.

[0056] The packaging process provided by this application can simultaneously complete a series of actions such as bag making during the movement of the product, with a fast continuous movement speed, and the CT (Cycle Time) can be achieved in about 1 second. This efficient automated processing method significantly improves production efficiency and reduces labor costs.

[0057] The packaging process provided by the embodiment of the present invention has good compatibility and can adapt to different sizes of objects to be packaged within a certain range. This compatibility enables the process to be widely used in various packaging scenarios and meet the needs of different customers. The waste collection process is simplified by the breakpoint processing and the connection design of the film waste. There is no need to add additional negative pressure waste suction devices, which simplifies the structure of the equipment.

[0058] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0059] The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed packaging machine, characterized in that: include: a film feeding device, the film feeding device being used to stretch out the folded double-layer film to form an accommodating space between the double-layer film, the accommodating space having a first opening and a second opening; A feeding device, which is used to push the packages into the accommodating space continuously from the first opening or the second opening according to a certain beat; An edge sealing device, the edge sealing device comprising a hot cutting mechanism, the hot cutting mechanism being used to hot cut the edge of the double-layer film of the second opening; A cutting device, comprising a double-edged knife assembly for cutting the edge of the double-layer film between two adjacent packages; A corner cutting device is used to straighten the corners of the packaging bag packaged on the surface of the packaging object and cut off the straightened corners.

2. The high-speed packaging machine according to claim 1, characterized in that: The cutting device further comprises a bed knife assembly and a driving assembly, wherein the driving assembly is used to drive the double-edged knife assembly and the bed knife assembly to move synchronously toward each other.

3. The high-speed packaging machine according to claim 2, characterized in that: The driving assembly includes a connecting rod mechanism, which includes a first connecting rod and a second connecting rod. The first connecting rod is connected to the double-edged knife assembly, and the second connecting rod is connected to the bottom knife assembly. The first connecting rod and the second connecting rod are connected through a transmission assembly to achieve synchronous movement.

4. The high-speed packaging machine according to claim 3, characterized in that: The cutting device also includes a first cam and a second cam, the first connecting rod is connected to the first cam by a cam roller, and the second connecting rod is connected to the second cam by a cam roller, the first cam and the second cam are arranged on the same plane, the first cam and the second cam are symmetrically arranged, and the first cam and the second cam both include a curved segment and a straight segment. When the first connecting rod moves to the straight segment of the first cam, the second connecting rod moves to the straight segment of the second cam, and at this time the double-edged knife assembly is engaged with the bottom knife assembly.

5. The high-speed packaging machine according to claim 1, characterized in that: The hot cutting mechanism includes an edge banding hot cutting knife and an edge banding bottom knife. The edge banding hot cutting knife is connected to a breakpoint swing rod, and the breakpoint swing rod is used to drive the edge banding hot cutting knife away from or close to the edge banding bottom knife.

6. The high-speed packaging machine according to claim 5, characterized in that: One end of the breakpoint swing arm is connected to the edge-sealing hot cutting knife, and the other end is connected to the first rotating shaft, and the edge-sealing hot cutting knife can move around the first rotating shaft.

7. The high-speed packaging machine according to claim 6, characterized in that: The edge banding hot cutting knife is arranged perpendicular to the breakpoint swing arm. A first roller is provided on the breakpoint swing arm. The first roller is slidably connected to the swing block. The contact surface between the swing block and the first roller includes a raised section.

8. The high-speed packaging machine according to claim 7, characterized in that: The swing block includes a first transverse groove, a second rotating shaft is provided on one side of the first transverse groove, the swing block is connected to the second rotating shaft, and the second roller is connected to the first transverse groove.

9. A packaging process using the high-speed packaging machine according to any one of claims 1 to 8, characterized in that: include: Film supplying, wherein the film supplying device stretches out the folded double-layer film to form an accommodating space between the double-layer film, wherein the accommodating space has a first opening and a second opening; Feeding, the feeding device pushes the packaged objects into the accommodating space continuously from the first opening or the second opening according to a certain beat; Edge sealing: a hot cutting mechanism heat-cuts the double-layer film edge of the second opening; Cutting: The first and second blades of the double-edged knife assembly cut the double-layer film edge seal between two adjacent packages to form four regular corners that can be cut off in the subsequent corner cutting process.

10. The packaging process according to claim 9, characterized in that: It also includes a corner cutting process. After the cutting process, the cut packaging material is sent to the corner cutting device. The corner cutting device straightens the corners of the packaging bag on the surface of the packaging material and cuts off the straightened corners.

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