A linear wrapping machine

Abstract

The application discloses a linear film wrapping machine, comprising a box pushing device, a processing table, a film feeding device, a film pulling device, a film opening device and a cutter device. The film feeding device is used for feeding a plastic wrapping film, and the plastic wrapping film is pulled to the processing table through the film pulling device, and then the plastic wrapping film is opened through the film opening device. At this time, the box pushing device pushes a box to be wrapped into the plastic wrapping film, and finally the cutter device seals the corner of the plastic wrapping film. Therefore, the linear film wrapping machine does not need a separate bag making and bag moving process, and not only improves the production efficiency, but also reduces the equipment size.

Description

Technical Field

[0001] This invention relates to the field of automatic wrapping equipment, and particularly to a linear wrapping machine. Background Technology

[0002] To enhance the perceived quality of products, protect their outer packaging, and stimulate consumer purchasing desire, manufacturers typically wrap an additional layer of plastic wrap around the outer packaging of their products before they leave the factory. A plastic wrapping machine is an industrial piece of equipment used for this purpose.

[0003] In existing technology, a wrapping machine includes a film-forming device, a film-transferring device, a film-pulling device, a film-opening device, and a box-pushing device. During operation, the film-forming device processes the plastic sealing film to create a semi-finished plastic bag. The film-transferring device moves the processed plastic sealing film to the vicinity of the processing table. The film-pulling device pulls the plastic sealing film moved by the film-transferring device onto the processing table. The film-opening device opens the opening of the plastic sealing film. Finally, the box-pushing device pushes the packaging box to be sealed into the plastic sealing film, followed by subsequent corner cutting and other operations.

[0004] The process involves three steps: the film-making device produces the sealing bags, and the bag-transferring device moves them. The film-making machine waits for the bags to finish, the bag-transferring device delivers the sealed bags to the film-pulling device, and the film-pulling device pulls the film to the processing table before subsequent processes like box pushing and corner cutting can begin. This is not only time-consuming and inefficient, but also requires a reserved bag-transferring station, resulting in a large horizontal volume of equipment, which is unfriendly to manufacturers with limited factory space. Therefore, improvements to the existing technology are necessary. Summary of the Invention

[0005] The main objective of this invention is to propose a linear coating machine that aims to solve the problems of long operation time, low efficiency, and large equipment size in the existing technology.

[0006] To achieve the above objectives, the present invention includes a box-pushing device, a processing table, a film-feeding device, a film-pulling device, a film-opening device, and a cutting device. The film-feeding device is located on the first side of the processing table, and the film-pulling device is used to clamp the end of the plastic seal film delivered by the film-feeding device and pull it to the second side of the processing table. The first side and the second side are opposite sides of the processing table. The film-opening device is used to open the plastic seal film. The box-pushing device is used to push the box to be wrapped into the processing table so that the box enters the plastic seal film. The cutting device is used to cut the plastic seal film pulled out by the film-pulling device.

[0007] Preferably, the processing table is provided with a channel, and the film pulling device is provided with a first motion mechanism. After the film pulling device clamps the plastic sealing film, the first motion mechanism drives the film pulling device to move from the first side to the second side in the channel.

[0008] Preferably, the film-pulling device includes a clamping part and a film-pulling hook. Both the clamping part and the film-pulling hook are equipped with a lifting mechanism. After the film-pulling device moves to the second side, the lifting mechanism drives the clamping part and the film-pulling hook to descend, and the first motion mechanism drives the film-pulling device to return from below the processing table to the first side.

[0009] Preferably, the film-pulling device includes a clamping part; the clamping part is provided with a rubber pad or a suction cup, which is used to clamp the plastic sealing film.

[0010] Preferably, the film-pulling hook further includes a lateral movement mechanism, which is used to cooperate with the first motion mechanism to drive the film-pulling hook into the opening of the plastic sealing film.

[0011] Preferably, the film pulling device further includes a film separating rod located downstream of the film feeding device; the film separating rod is used to separate the plastic sealing film so that the film pulling hook can extend into the plastic sealing film.

[0012] Preferably, the film separating rod has a groove on the side facing the film pulling hook, the groove allowing the film pulling hook to extend into and pull out the plastic sealing film.

[0013] Preferably, the film-opening device includes a film-opening assembly and a second motion mechanism; the film-opening assembly is used to separate the plastic seal film; the second motion mechanism is used to drive the film-opening assembly to separate the plastic seal film.

[0014] Preferably, the cutting device includes a hot cutter for cutting the plastic sealant; the hot cutter completes the film sealing process simultaneously while cutting the plastic sealant.

[0015] Preferably, the film feeding device includes a rotary wheel mechanism, which includes a rotary wheel covered with a plastic sealant and a rotary motor; the rotary wheel and the rotary motor are detachably connected; the rotary motor is used to drive the rotary wheel to rotate for film feeding.

[0016] This invention provides a linear wrapping machine, comprising a box-pushing device, a processing table, a film feeding device, a film pulling device, a film opening device, and a cutting device. The film feeding device delivers the plastic sealing film, which is then pulled to the processing table by the film pulling device. The film opening device then opens the plastic sealing film, at which point the box-pushing device pushes the box to be sealed into the plastic sealing film. Finally, the cutting device cuts the corners of the plastic sealing film to seal it. Therefore, this linear wrapping machine eliminates the need for separate film making and handling processes, improving production efficiency while reducing equipment size. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a perspective view of an embodiment of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural view of an embodiment of the present invention.

[0020] Figure 3 This is a top view of a processing station according to an embodiment of the present invention;

[0021] Figure 4 This is a perspective view of a film stretching device according to an embodiment of the present invention;

[0022] Figure 5 This is a perspective view of a film-opening device according to an embodiment of the present invention;

[0023] Figure 6 This is a perspective view of a membrane-splitting rod according to an embodiment of the present invention;

[0024] Explanation of icon numbers:

[0025] label name label name Push box device 100 membrane hook 340 Processing station 200 Separating rod 350 First side 210 groove 351 Second side 220 bottom of the slope 352 Third side 230 Slope top 353 Fourth side 240 Film opening device 400 aisle 250 Membrane opening assembly 410 membrane stretching device 300 Top opening film component 411 First Sports Organization 310 Bottom opening membrane component 412 First slide rail 311 Second Sports Organization 420 Second slide rail 312 Film feeding device 500 Lifting mechanism 320 Rotary wheel 510 Clamping part 330 First cutting device 600 gripper 331 Second cutting device 610

[0026] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] To enhance the perceived quality of products, protect their outer packaging, and stimulate consumer purchasing desire, manufacturers typically wrap an additional layer of plastic wrap around the outer packaging of their products before they leave the factory. A plastic wrapping machine is an industrial piece of equipment used for this purpose.

[0031] In existing technology, a wrapping machine includes a film-forming device, a film-transferring device, a film-pulling device, a film-opening device, and a box-pushing device. During operation, the film-forming device processes the plastic sealing film to create a semi-finished plastic bag. The film-transferring device moves the processed plastic sealing film to the vicinity of the processing table. The film-pulling device pulls the plastic sealing film moved by the film-transferring device onto the processing table. The film-opening device opens the opening of the plastic sealing film. Finally, the box-pushing device pushes the packaging box to be sealed into the plastic sealing film, followed by subsequent corner cutting and other operations.

[0032] The process involves three steps: the film-making device produces the sealing bags, and the bag-transferring device moves them. The film-making machine waits for the bags to finish, the bag-transferring device delivers the sealed bags to the film-pulling device, and the film-pulling device pulls the film to the processing table before subsequent processes like box pushing and corner cutting can begin. This is not only time-consuming and inefficient, but also requires a reserved bag-transferring station, resulting in a large horizontal volume of equipment, which is unfriendly to manufacturers with limited factory space. Therefore, improvements to the existing technology are necessary.

[0033] Therefore, to solve the above problems, this invention discloses a linear wrapping machine, including a box-pushing device, a processing table, a film feeding device, a film pulling device, and a cutting device. The film feeding device conveys the plastic sealing film, and the film pulling device pulls the plastic sealing film to the processing table. At this point, the box-pushing device pushes the box to be sealed into the plastic sealing film, and finally, the cutting device cuts the corners of the plastic sealing film to seal it. Thus, the linear wrapping machine proposed in this invention eliminates the need for separate film making and film handling processes, thereby improving production efficiency and reducing equipment size.

[0034] For ease of understanding, the specific implementation methods of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0035] In one embodiment of the present invention, please refer to Figure 1and Figure 2 The linear wrapping machine provided in this application includes a box-pushing device 100, a processing table 200, a film-feeding device 500, a film-pulling device 300, a film-opening device 400, and a cutting device. The film-feeding device 500 is located on the first side 210 of the processing table 200. The film-pulling device 300 is used to clamp the end of the plastic seal film delivered by the film-feeding device 500 and pull it to the second side 220 of the processing table 200. The first side 210 and the second side 220 are opposite sides of the processing table 200. The film-opening device 400 is used to open the plastic seal film. The box-pushing device 100 is used to push the box to be wrapped into the processing table 200 so that the box enters the plastic seal film. The cutting device is used to cut the plastic seal film pulled out by the film-pulling device 300.

[0036] In this embodiment, the sealing film used is not a finished sealing bag, but a double-layered sealing film that needs to be heat-sealed by a cutting device to make bags. Specifically, the processing table 200 is a platform for wrapping boxes, so most processes revolve around the processing table 200. Please refer to... Figures 1 to 3 The processing table 200 has a first side 210 and a second side 220 opposite to each other, and a third side 230 and a fourth side 240 perpendicular to the first side 210 and the second side 220. The film feeding device 500 is located on the first side 210 of the processing table 200 and is used to transport the plastic sealing film to the processing table 200. The cutting device includes a first cutting device 600 and a second cutting device 610. The first cutting device 600 is disposed above the first side 210 of the processing table 200, and the second cutting device 610 is disposed above the fourth side 240 of the processing table 200.

[0037] Thus, when the film feeding device 500 delivers the plastic sealing film to the first side 210 of the processing table 200, the first cutting device 600 has already performed a first heat cut on the double-layered plastic sealing film in the previous processing step, at which point one end of the plastic sealing film is sealed. Next, the film pulling device 300 pulls the sealed side of the plastic sealing film to the second side 220 of the processing table 200, and the first cutting device 600 performs a second heat cut on the plastic sealing film now located on the first side 210 of the processing table 200. After two heat cuts, both ends of the plastic sealing film are sealed. Then, the film opening device 400 opens the double-layered plastic sealing film to allow the box to enter, and the box pushing device 100 pushes the box between the double-layered plastic sealing films. Finally, the box pushed into the plastic sealing film continues to be pushed along the process travel direction by the box pushing device 100.

[0038] Therefore, the linear wrapping machine provided in this embodiment eliminates the need for a film-carrying device. The film-pulling device 300 directly pulls the plastic wrapping film delivered by the film-feeding device 500 onto the processing table 200. On the one hand, by omitting the film-carrying device, the lateral movement distance of the film-carrying device is reduced, resulting in a narrower overall equipment size, which is more suitable for manufacturers with smaller factory areas. On the other hand, since there is no longer a need to wait for the film-carrying device to move the film, processing efficiency is improved, and the equipment is more efficient.

[0039] It should be noted that the function of the film-pulling device 300 is to clamp the plastic sealing film and pull it from the first side 210 to the second side 220 of the processing table 200. To ensure the horizontal movement of the film-pulling device 300, there are various ways to achieve this. The following preferred embodiments are provided in this application. In one embodiment of the present invention, please refer to... Figures 1 to 3 The processing table 200 is provided with a channel 250, and the film pulling device 300 is provided with a first motion mechanism 310. After the film pulling device 300 clamps the plastic sealing film, the first motion mechanism 310 drives the film pulling device 300 to move from the first side 210 to the second side 220 in the channel 250.

[0040] It should be noted that, please refer to Figure 4 The first motion mechanism 310 also includes a first slide rail 311 and a second slide rail 312. The clamping part 330 and the film-pulling hook 340 are slidably connected to the first slide rail 311, and the two ends of the first slide rail 311 are slidably connected to the second slide rail 312. The clamping part 330 can slide on the first slide rail 311, thereby adjusting the distance between the two clamping parts 330 to meet the needs of clamping different specifications of plastic sealing film. At the same time, the first motion mechanism 310 can drive the first slide rail 311 to move on the second slide rail 312, that is, it can drive the clamping part 330 and the film-pulling hook 340 to move simultaneously on the second slide rail 312, thereby pulling the plastic sealing film from the first side 210 to the second side 220 of the processing table 200.

[0041] It should be further explained that after the film pulling device 300 pulls the sealing film from the first side 210 to the second side 220 of the processing table 200, it is necessary to wait for the box pushing process to be completed and the box pushing device 100 to return to its original position before the film pulling device 300 can return to the first side 210 of the processing table 200. This adds a lot of unnecessary waiting time. In order to improve efficiency, this embodiment utilizes the space in the height direction and adds a lifting mechanism 320 to both the clamping part 330 and the film pulling hook 340. This allows the clamping part 330 and the film pulling hook 340 to return to their original positions from below the processing table 200 while the box pushing process is being performed, reducing a lot of unnecessary working time.

[0042] In one embodiment of the present invention, please refer to Figure 4Both the clamping part 330 and the film-pulling hook 340 are equipped with lifting mechanisms 320. After the film-pulling device 300 moves to the second side 220, the lifting mechanism 320 drives the clamping part 330 and the film-pulling hook 340 to descend below the processing table 200. The first motion mechanism 310 then drives the film-pulling device 300 back from below the processing table 200 to the first side 210. In this embodiment, the lifting mechanism 320 and the first motion mechanism 310 work together. While the box-pushing device 100 pushes the box into the plastic sealing film, the lifting mechanism 320 drives the clamping part 330 and the film-pulling hook 340 to descend below the processing table 200. Then, the first motion mechanism 310 returns the film-pulling device 300 to the first side 210 of the processing table 200. The two steps are performed simultaneously, shortening the working time and greatly improving efficiency.

[0043] It should be noted that, because the plastic sealant itself is relatively thin, a clamping mechanism needs to be added to the film stretching device 300 to clamp the plastic sealant and prevent it from slipping off. In this embodiment, the method of clamping the plastic sealant is not limited. For ease of understanding, a preferred embodiment is provided below.

[0044] In a preferred embodiment of the present invention, the film stretching device 300 includes a clamping part 330; the clamping part 330 is provided with a rubber pad or a suction cup, which is used to clamp the plastic sealing film.

[0045] In this embodiment, please refer to Figure 4 The clamping part 330 is equipped with a gripper 331 and a small drive mechanism for controlling the opening and closing of the gripper 331. The contact surface between the gripper 331 and the plastic sealant is set as a rubber pad or a suction cup. In this way, the small drive mechanism controls the opening and closing of the gripper 331 to clamp the plastic sealant, and the friction of the rubber or the suction of the suction cup allows the plastic sealant to be pulled smoothly.

[0046] It should be noted that since the plastic wrap is initially double-layered, the double-layered plastic wrap needs to be separated and kept apart before the box is pushed into the plastic wrap, so that there is a certain distance between the two layers of plastic wrap, which facilitates subsequent operations.

[0047] In one embodiment of the present invention, the film-pulling hook 340 further includes a transverse movement mechanism, which is used to cooperate with the first motion mechanism 310 to drive the film-pulling hook 340 to extend into the opening of the plastic sealing film.

[0048] In this embodiment, please refer to Figures 1 to 4 The front end of the film-pulling hook 340 is hook-shaped and has a certain thickness. As a result, while separating the double-layer plastic seal film, the film-pulling hook 340 hooks the end of the plastic seal film that is sealed by the hot cutting knife, and cooperates with the clamping part 330 to pull the plastic seal film to the second side 220 of the processing table 200.

[0049] It should be noted that, because the sealed end of the plastic wrap blocks the straight-line path of the film-pulling hook 340 before film pulling, the film-pulling hook 340 needs to bypass the plastic wrap to enter and hook the opening of the plastic wrap. In this step, the film-pulling hook 340 needs to move on the first slide rail 311 under the drive of the lateral movement mechanism to a position that can avoid the plastic wrap. Then, the first motion mechanism 310 drives the first slide rail 311 to move on the second slide rail 312 to approach the plastic wrap. Next, the film-pulling hook 340 moves on the first slide rail 311 under the drive of the lateral movement mechanism to enter the opening of the plastic wrap and hook the plastic wrap. Finally, the clamping part 330 clamps and pulls the plastic wrap.

[0050] It should be further explained that when the film feeding device 500 transports the double-layer plastic sealing film to the first side 210 of the processing table 200, the plastic sealing film needs to be separated into layers beforehand so that the film pulling hook 340 can enter. This requires a film separating mechanism to be set on the first side 210 of the processing table 200 to separate the double-layer plastic sealing film. In the embodiments of this application, the method of separating the plastic sealing film is not limited. For ease of understanding, a preferred embodiment is provided as follows.

[0051] In one embodiment of the present invention, the film pulling device 300 further includes a film separating rod 350, which is located downstream of the film feeding device 500; the film separating rod 350 is used to separate the plastic seal film so that the film pulling hook 340 can extend into the plastic seal film.

[0052] In this embodiment, please refer to Figure 1 and Figure 6 The film separating rod 350 is located downstream of the film feeding device 500, that is, between the film pulling device 300 and the film feeding device 500. The side of the film separating rod 350 that first contacts the plastic sealing film has a slope. Before the equipment is started, the double-layer plastic sealing film is first placed separately on the upper and lower surfaces of the film separating rod 350. Then, the thinner bottom slope 352 end is used to continuously separate the double-layer plastic sealing film, and then it reaches the top slope 353 through the slope. At this time, a distance similar to the thickness of the film separating rod 350 is formed between the double-layer plastic sealing film, which makes it easy for the film pulling hook 340 to extend into the plastic sealing film.

[0053] It should be noted that since the film-pulling hook 340 needs to extend into the sealed end of the plastic film, space needs to be reserved on the side of the film-splitting rod 350 facing the film-pulling hook 340 for the film-pulling hook 340 to extend into.

[0054] In one embodiment of the present invention, the film separating rod 350 has a groove 351 on the side facing the film pulling hook 340, the groove 351 is for the film pulling hook 340 to extend into and pull out the plastic sealing film.

[0055] In this embodiment, please refer to Figure 1 , Figure 4 and Figure 6Since the film-pulling hook 340 needs to enter the space formed between the two layers of plastic film from the sealed end of the plastic film, the groove 351 needs to be set to fit the shape of the front end of the film-pulling hook 340. In this way, the film-pulling hook 340 extends into the groove 351 to pull the sealed end of the plastic film, and together with the film-pulling device 300, pulls the plastic film.

[0056] It should be noted that, since the thickness of the film separating rod 350 and the film pulling hook 340 is limited, and the height of the box that needs to be wrapped is often greater than this thickness, an additional film opening device 400 is required to increase the distance between the double-layer plastic sealing film in order to accommodate boxes of various sizes.

[0057] In one embodiment of the present invention, a film opening device 400 is further included, which includes a film opening component 410 and a second motion mechanism 420; the film opening component 410 is used to separate the film opening of the plastic seal film; the second motion mechanism 420 is used to drive the film opening component 410 to separate the film opening.

[0058] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 5 The film opening device 400 includes a film opening assembly 410 and a second motion mechanism 420. The film opening assembly 410 includes an upper film opening member 411 and a lower film opening member 412, each equipped with a corresponding power mechanism. The power mechanism controls the opening and closing of the upper film opening member 411 and the lower film opening member 412. The lower film opening member 412 clamps and fixes the lower plastic sealing film so that the upper film opening member 411 can lift the upper plastic sealing film, thereby forming a larger opening. Thus, the film opening assembly 410 moves towards the processing table under the drive of the second motion mechanism 420 and is handed over to the plastic sealing film from the film pulling device 300. The lower film opening member 412 clamps the lower plastic sealing film, and the upper film opening member 411, driven by the second motion mechanism 420, lifts the upper plastic sealing film to a height where the box can enter. After the box pushing device 100 pushes the box between the plastic sealing films, the film opening assembly 410 returns to its initial position under the drive of the second motion mechanism 420, ready for the next film opening operation.

[0059] It should be noted that after the box is placed between the two layers of plastic sealing film, a subsequent sealing process is required to complete the full wrapping operation. Therefore, in one embodiment of the present invention, a cutting device is added, including a hot cutting knife for cutting the plastic sealing film; the hot cutting knife completes the bag sealing at the same time as cutting the plastic sealing film.

[0060] In this embodiment, please refer to Figures 1 to 3The cutting device includes a first cutting device 600 and a second cutting device 610. The first cutting device 600 is disposed above the first side 210 of the processing table 200, and the second cutting device 610 is disposed above the fourth side 240 of the processing table 200. When the equipment is in operation, as the plastic sealing film is transported to the first side 210, the first cutting device 600 performs a first heat-sealing operation on the film. Then, the film pulling device 300 pulls the sealed end of the film to the second side 220 of the processing table 200, where the first cutting device 600 performs a second heat-sealing operation on the film currently located on the first side 210 of the processing table 200. Next, the box pushing device 100 pushes the front end of the box in the pushing direction to the fourth side 240 of the processing table 200, where the second cutting device 610 performs a third heat-sealing operation on the film. Finally, the box pushing device 100 continues to push the rear end of the box in the pushing direction to the fourth side 240 of the processing table 200, where the second cutting device 610 performs a fourth heat-sealing operation on the film. At this point, all four sides of the film are heat-sealed, and the box pushing device 100 continues to push it for the subsequent corner-cutting process.

[0061] It should be noted that in order to maintain the continuity of the wrapping process, the film feeding device 500 needs to have both storage and conveying functions to avoid frequent replacement of the plastic sealing film rollers.

[0062] In one embodiment of the present invention, the film feeding device 500 includes a rotating wheel 510 mechanism, which includes a rotating wheel 510 covered with a plastic sealant and a rotary motor; the rotary motor is used to drive the rotating wheel 510 to rotate for film feeding.

[0063] In this embodiment, please refer to Figure 2 and Figure 3 The rotary wheel 510 mechanism includes a rotary wheel 510 and a rotary motor for driving the rotary wheel 510 to rotate. A certain number of stacked double-layer plastic sealing films are pre-covered on the rotary wheel 510, ensuring that no additional plastic sealing film is needed within a certain working time. Driven by the rotary motor, the rotary wheel 510 continuously transports the plastic sealing film to the first side 210 of the processing table 200, ensuring the progress of subsequent processes. Furthermore, the rotary wheel 510 is replaceable; when a roll of plastic sealing film is used up, a new rotary wheel 510 covered with plastic sealing film can be directly replaced.

[0064] In summary, the linear wrapping machine proposed in this invention includes a box-pushing device 100, a processing table 200, a film-feeding device 500, a film-pulling device 300, and a cutting device. The film-feeding device 500 delivers the sealing film, and the film-pulling device 300 pulls the sealing film to the processing table 200. At this point, the box-pushing device 100 pushes the box to be sealed into the sealing film, and finally, the cutting device cuts the corners of the sealing film to seal it. Therefore, the linear wrapping machine proposed in this invention eliminates the need for separate bag-making and bag-handling processes, not only improving production efficiency but also reducing the size of the equipment.

[0065] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A linear wrapping machine, characterized in that, It includes a box-pushing device, a processing table, a film feeding device, a film pulling device, a film opening device, and a cutting device, among which, The film feeding device is located on the first side of the processing table, and the film pulling device is used to clamp the end of the film feeding device that is feeding out the sealing film and pull it to the second side of the processing table; the first side and the second side are opposite sides of the processing table; The film opening device is used to open the plastic sealing film; The box-pushing device is used to push the box to be wrapped into the processing table so that the box enters the plastic sealing film; The cutting device is used to cut the plastic sealant film pulled out by the film stretching device; The processing station is provided with multiple channels, which are arranged in parallel to each other. The film-pulling device is provided with a first motion mechanism. The film-pulling device includes two clamping parts, which are used to clamp the plastic sealing film. After the clamping parts clamp the plastic sealing film, the first motion mechanism drives the clamping parts to move from the first side to the second side through the channel. The film stretching device further includes a first slide rail, and the two clamping parts are slidably disposed on the first slide rail so that when the two clamping parts move from the first side to the second side, the two clamping parts can move along different channels; The clamping part is provided with a first lifting mechanism; after the film pulling device moves to the second side, the first lifting mechanism drives the two clamping parts to descend, and the first moving mechanism drives the film pulling device to return from below the processing table to the first side.

2. The linear coating machine as described in claim 1, characterized in that, The film-pulling device also includes a film-pulling hook, which is used to hook the plastic sealant film.

3. The linear coating machine as described in claim 2, characterized in that, The film-pulling hook is equipped with a second lifting mechanism. After the film-pulling device moves to the second side, the second lifting mechanism drives the film-pulling hook to descend, and the first motion mechanism drives the film-pulling device to return from below the processing table to the first side.

4. The linear wrapping machine as described in any one of claims 1 to 3, characterized in that, The clamping part is provided with a rubber pad or a suction cup, which is used to clamp the plastic sealant film.

5. The linear coating machine as described in claim 3, characterized in that, The film-pulling hook also includes a lateral movement mechanism, which is used in conjunction with the first motion mechanism to drive the film-pulling hook to extend into the opening of the plastic sealing film.

6. The linear coating machine as described in claim 5, characterized in that, The film pulling device further includes a film separating rod, which is located downstream of the film feeding device; the film separating rod is used to separate the plastic sealing film so that the film pulling hook can extend into the plastic sealing film.

7. The linear wrapping machine as described in claim 6, characterized in that, The film separating rod has a groove on the side facing the film pulling hook, and the groove allows the film pulling hook to extend into and pull out the plastic sealing film.

8. The linear coating machine as described in claim 1, characterized in that, The film-opening device includes a film-opening component and a second motion mechanism; the film-opening component is used to separate the plastic seal film; the second motion mechanism is used to drive the film-opening component to separate the plastic seal film.

9. The linear coating machine as described in claim 1, characterized in that, The cutting device includes a hot cutting blade and a fixing mechanism, wherein the hot cutting blade is used to cut the plastic sealant film; The hot cutting blade completes film sealing while cutting the plastic sealant.

10. The linear coating machine as described in claim 1, characterized in that, The film feeding device includes a rotary wheel mechanism, which includes a rotary wheel covered with the plastic sealant and a rotary motor; the rotary wheel and the rotary motor are detachably connected; the rotary motor is used to drive the rotary wheel to rotate for film feeding.

Images