Bagging and film sealing packaging machine for packaging box

Abstract

The invention relates to the technical field of packaging equipment, in particular to a bagging and film sealing packaging machine for packaging boxes, which comprises a bag pulling and opening station and a bagging station, a bag supply mechanism, a bag pulling mechanism and a bag opening and carrying mechanism are respectively arranged on the outer side of the bag pulling and opening station, and a box pushing mechanism is arranged on one side of the bagging station; the bag opening and carrying mechanism is provided with a movable clamp assembly, and the clamp assembly is used for opening bag openings of the thin film packaging bags and carrying the thin film packaging bags from the bag pulling and opening station to the bagging station. The bag pulling and opening station and the bagging station are separated, bag pulling, bag opening, bagging and other procedures are operated separately, the bag supplying mechanism, the bag pulling mechanism, the bag opening and carrying mechanism and the box pushing mechanism corresponding to all the procedures are distributed near the corresponding stations, and the clamp assembly achieves bag opening and carrying of thin film packaging bags at the same time. Therefore, the film packaging bag is carried to the bagging station from the bag pulling and opening station, the layout of the whole bagging and film sealing packaging machine is more reasonable, and the fault rate and the maintenance difficulty are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment, and in particular to a bagging and film sealing packaging machine for packaging boxes. Background Art

[0002] The bagging and sealing packaging machine is an automated packaging machine used for bagging and sealing tea packaging boxes and other product packaging boxes. Its main function is to automatically put the product packaging box into the prefabricated film packaging bag, seal it by heat sealing, gluing, etc., and complete the packaging.

[0003] Before packaging, the film packaging bag is usually in the form of a roll. The film packaging bag is pulled out from the packaging bag roll by the bag supply mechanism, and then the film packaging bag is opened by the bag opening mechanism (hereinafter referred to as "bag opening") in preparation for the box pushing mechanism to push the product box into the opened film packaging bag (hereinafter referred to as "bag loading"). In addition, since the film packaging bag is thin and soft, it is difficult for the film packaging bag itself to maintain its shape. A bag pulling mechanism is required to cooperate with the bag supply mechanism to pull the film packaging bag out of the roll (hereinafter referred to as "bag pulling"). The bag pulling mechanism can also maintain the shape of the film packaging bag so that the bag opening mechanism can apply force to the film packaging bag to open the bag mouth of the film packaging bag.

[0004] At present, there are some bagging and sealing packaging machines that set the bag pulling, bag opening and bag filling at the same workstation. The bag feeding mechanism, bag pulling mechanism, bag opening mechanism and box pushing mechanism are all arranged around the workstation, resulting in a large number of parts around the workstation and a complex mechanism, which makes the bagging and sealing packaging machine have a high failure rate and great difficulty in maintenance. Summary of the invention

[0005] The object of the present invention is to provide a bagging and film sealing packaging machine for packaging boxes, so as to solve the above-mentioned problems that the existing bagging and film sealing packaging machines have complex structures and are difficult to maintain.

[0006] To achieve the above object, the technical solution of the present invention is: a bagging and film sealing packaging machine for packaging boxes, comprising: The bag pulling and opening station and the bag filling station are arranged at intervals; the direction in which the bag pulling and opening station and the bag filling station are arranged at intervals is defined as the X axis, A bag supply mechanism, arranged at one side of the bag pulling and bag opening station along the X-axis direction, for placing a packaging bag roll and conveying the end of the packaging bag roll to one side of the bag pulling and bag opening station; A bag pulling mechanism is arranged on the other side of the bag pulling and bag opening station in the X-axis direction, and is used to pull the end of the packaging bag roll out in the X-axis direction to cross the bag pulling and bag opening station so as to sequentially supply a single film packaging bag to the bag pulling and bag opening station. The bag pulling mechanism is also used to cooperate with the bag supply mechanism to tighten the film packaging bag, and the direction perpendicular to the X-axis on the plane where the film packaging bag is located after being tightened is defined as the Y-axis direction; A bag opening and moving mechanism is arranged at one side of the bag opening and pulling station along the Y-axis direction, and the bag opening and moving mechanism includes a clamp assembly, and the clamp assembly is configured to be movable along the X-axis direction, and the clamp assembly is used to open the bag opening of the film packaging bag and move the film packaging bag from the bag opening and pulling station to the bagging station along the X-axis direction; A box pushing mechanism is arranged at one side of the bagging station along the Y-axis direction, and is used to push a packaging box into a film packaging bag with an open bag opening.

[0007] In one embodiment, a direction perpendicular to the X-axis and the Y-axis is defined as the Z-axis direction, and the clamp assembly includes two clamping heads arranged at intervals along the X-axis direction, and each of the clamping heads includes two clamping pieces arranged at intervals along the Z-axis direction; One of the clips is arranged to be liftable along the Z-axis direction relative to the other clip so that the two clips form a bag-supporting structure that is selectively closed or opened. The bag-supporting structure is closed to be inserted between two layers of film in the film packaging bag, and the bag-supporting structure is opened to separate the two layers of film in the film packaging bag to open the bag opening; A clamping block is respectively provided on the two clips in the direction away from each other, and the clamping block is arranged to be liftable along the Z-axis direction relative to the clip so that the clamping block and the clip corresponding to the clamping block form a selectively closed or opened clamping bag structure, the clamping bag structure is opened to be inserted into both sides of a layer of film of the film packaging bag, and the clamping bag structure is closed to clamp the film.

[0008] The cam assembly is connected to the cam so as to realize movement along the X-axis direction as the cam slides along the cam rail; the cam assembly is connected to a lifting rail extending along the Z-axis direction. The two clamps are an upper clamp and a lower clamp arranged below the upper clamp, the clamp block corresponding to the upper clamp is an upper clamp block, and the clamp block corresponding to the lower clamp is a lower clamp block. The upper clamp and the upper clamp block form an upper bag clamping structure, and the lower clamp and the lower clamp block form a lower bag clamping structure. The lower bag clamping structure is arranged on a lower adjusting component and is connected to the cam assembly through the lower adjusting component. The upper bag clamping structure is arranged on an upper adjusting component and is connected to the cam assembly through the upper adjusting component and a lifting slider, so as to realize lifting and lowering of the upper clamp relative to the lower clamp along the Z-axis direction.

[0009] In one embodiment, the upper adjustment assembly includes an upper adjustment rail extending along the X-axis direction, an upper clamping bag structure and a lower clamping bag structure form a clamping head group, the upper clamping bag structure is connected to the upper adjustment rail through an upper adjustment slider, and the upper clamping bag structure slides along the upper adjustment rail to achieve position adjustment of the two upper clamping bag structures relative to the lifting rail; The lower adjustment component includes a lower adjustment slide rail extending along the X-axis direction, and the lower bag clamping structure is connected to the lower adjustment slide rail through a lower adjustment slider. The lower bag clamping structure slides along the lower adjustment slide rail to achieve position adjustment of the two lower bag clamping structures relative to the lifting slide rail; thereby achieving alignment of the upper bag clamping structure and the lower bag clamping structure in the Z-axis direction.

[0010] In one embodiment, the clamping block is connected to the clamping piece through a bag clamping cylinder, the clamping piece is connected with a mounting portion for mounting the bag clamping cylinder, and the clamping block is arranged at the output end of the bag clamping cylinder, thereby realizing a setting in which the clamping block can be raised and lowered relative to the clamping piece along the Z-axis direction.

[0011] In one embodiment, the bag opening and moving mechanism is further provided with an air blowing assembly, the air outlet of the air blowing assembly is arranged toward the bag opening for blowing air toward the bag opening to further separate the two layers of the film in the film packaging bag.

[0012] In one embodiment, a pre-bag-opening mechanism is further included, and the pre-bag-opening mechanism includes a pre-bag-opening sheet arranged on the bag supply mechanism and a pre-bag-opening hook arranged on the bag pulling mechanism, the pre-bag-opening sheet is used to be arranged between two layers of film in the film packaging bag, and the pre-bag-opening hook is used to be inserted between the two layers of film in the film packaging bag, and the pre-bag-opening hook is also used to cooperate with the pre-bag-opening sheet to separate the two layers of film in the film packaging bag to form a bag opening with an opening, and the opening of the bag opening is the maximum distance between the two layers of film, and the opening is a first value under the action of the pre-bag-opening mechanism.

[0013] In one embodiment, it also includes a bag suction mechanism, which is arranged above the bag pulling and bag opening station, and includes a suction head connected to a negative pressure suction device, so as to suck the upper film of the film packaging bag upward to increase the opening of the bag mouth formed by the pre-bag opening mechanism, so that the opening is increased to a second value, and the clamp assembly opens the bag mouth of the film packaging bag to increase the opening from the second value to a third value.

[0014] In one embodiment, the bag supply mechanism also includes a cutter assembly, which is arranged above the bag pulling and opening station in a lifting manner along the Z-axis direction. The cutter assembly is used to cut the film packaging bag when the film packaging bag is clamped by the clamp assembly to supply individual film packaging bags to the bag pulling and opening station in sequence.

[0015] In one embodiment, a conveyor belt for loading the packaging box is further included, and the conveyor belt is arranged on the side of the bag opening and moving mechanism away from the bagging station. In the Y-axis direction, the conveyor belt is provided with a box pushing station corresponding to the bagging station, and the box pushing mechanism is connected to the conveyor belt to push the packaging box on the box pushing station toward the bagging station, thereby pushing the packaging box into the film packaging bag with the bag mouth opened.

[0016] The beneficial effects of the present invention are as follows: the present invention separates the bag pulling and opening station from the bag filling station to separate the bag pulling, bag opening and bag filling processes, and distributes the bag supply mechanism, bag pulling mechanism, bag opening and bag moving mechanism and box pushing mechanism corresponding to each process near the corresponding station, and then uses the clamp assembly of the bag opening and bag moving mechanism to simultaneously realize the bag opening and bag moving of the film packaging bag. Bag moving is to move the film packaging bag from the bag pulling and bag opening station to the bag filling station, so that the layout of the entire bagging and film sealing packaging machine is more reasonable, the arrangement of each mechanism is more dispersed, and the accumulation of parts is reduced, thereby reducing the failure rate and maintenance difficulty. Secondly, each clamp head group of the clamp assembly forms a bag support structure and a bag clamping structure through the cooperation of two clamping pieces and two clamping blocks, so that the clamp assembly can not only open the bag opening of the film packaging bag, but also move the film packaging bag with the bag opening opened, realizing the two-in-one bag opening and bag moving, improving the utilization rate of parts and simplifying the structure of the bag opening and bag moving mechanism. Thirdly, through the cooperation of the pre-bag opening mechanism, the bag suction mechanism and the bag opening and moving mechanism, the bag mouth of the film packaging bag is opened in batches, and the opening degree gradually increases each time, making the bag opening process more reasonable and avoiding damage to the film packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a perspective view of an embodiment of the present invention.

[0018] Figure 2 2 is a top view of an embodiment of the present invention.

[0019] Figure 3 2 is a front view of an embodiment of the present invention.

[0020] Figure 4 It is a three-dimensional diagram of a bag opening and moving mechanism according to an embodiment of the present invention.

[0021] Figure 5 It is a front view of the bag-opening and bag-moving mechanism of an embodiment of the present invention in a closed state of the bag-supporting structure.

[0022] Figure 6 It is a structural diagram of a clamp assembly and an up and down adjustment assembly according to an embodiment of the present invention.

[0023] Figure 7 1. It is a diagram of the bag-supporting structure of the clamp assembly in the embodiment of the present invention in the closed state.

[0024] Figure 8 It is a front view of the bag-opening and bag-moving mechanism according to an embodiment of the present invention in an open state of the bag-supporting structure.

[0025] Fig. 9 1 is a diagram of the bag support structure of the clamp assembly according to an embodiment of the present invention in an open state.

[0026] Fig.10 1. It is a diagram of the closed state of the clamp bag structure of the clamp assembly according to an embodiment of the present invention.

[0027] Fig.11 1 is a structural diagram of a pre-bag opening mechanism according to an embodiment of the present invention.

[0028] Among them: 1 bag supply mechanism, 11 cutter assembly, 2 bag pulling mechanism, 21 clamping claw, 3 bag opening and moving mechanism, 31 clamp assembly, 311 clamp, 311A ​​upper clamp, 311B lower clamp, 312 clamp, 312A upper clamp, 312B lower clamp, 313 bag clamping cylinder, 314 installation part, 31C bag support structure, 31D bag clamping structure, 32 transverse sliding block, 33 transverse sliding rail, 34 transverse belt transmission mechanism, 341 belt, 342 pulley, 343 transverse electric machine, 35 lifting rail, 36A upper adjustment component, 361A upper adjustment rail, 362A upper adjustment slider, 36B lower adjustment component, 361B lower adjustment rail, 362B lower adjustment slider, 37 lifting slider, 38 motor lifting module, 381 lifting nut, 4 conveyor belt, 5 box pushing mechanism, 51 material pushing piece, 6 pre-opening bag mechanism, 61 pre-opening bag sheet, 611 hook bag groove, 62 pre-opening bag hook, 63 pre-opening bag cylinder, 7 bag suction mechanism, 71 suction head, 72 bag suction cylinder; 10 bag pulling and opening stations, 20 bag filling stations, 30 box pushing stations; 100 pieces in a box, 200 pieces in a film bag. DETAILED DESCRIPTION

[0029] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] See also Figures 1 to 3As shown, the present invention discloses a bagging and film sealing packaging machine for packaging boxes. The bagging and film sealing packaging machine is used to load a packaging box 100 into a film packaging bag 200. The film packaging bag 200 has two layers of film. The long strip of film is wound on a roll core to form a packaging bag roll. When in use, the two layers of film are pulled out from the end of the packaging bag roll at the same time, and the film packaging bag 200 is tightened and flattened into a plane. This process is simply called "bag pulling". In order to separate the film packaging bag 200 from the packaging bag roll, the film is cut by a hot melt cutter, and the cut part is formed into a single film packaging bag 200. The two layers of film are hot-melt bonded at the cut point, so that both ends of the film packaging bag 200 in the direction of being pulled out are hot-melt bonded and sealed. This process is simply called "bag cutting". The two layers of film are separated from the edge of the film that has not been hot-melt bonded, thereby opening the bag mouth of the film packaging bag 200 to prepare for the subsequent loading of the packaging box 100 into the film packaging bag 200. This process is referred to as "opening the bag". The packaging box 100 is fed into the film packaging bag 200 through the bag mouth of the film packaging bag 200. This process is referred to as "bagging". After bagging, the film packaging bag 200 is sealed and shaped by a sealing mechanism, a corner cutting mechanism, a heat shrinking mechanism, etc., so that the film packaging bag 200 is attached to the outer surface of the packaging box 100, and the bagging of the packaging box 100 is completed.

[0031] In addition, the film packaging bag 200 is not limited to being formed by cutting from a continuous long strip of film, but can also be a packaging bag roll formed by connecting multiple film packaging bags 200 at the end, and a breakpoint is provided between adjacent film packaging bags 200 to facilitate separation of the film packaging bags 200. In this case, a separation mechanism can be provided to apply force to the breakpoint to separate the film packaging bags 200. The present invention does not limit the specific form of the film packaging bag 200, and it can be a packaging bag used for bagging of a packaging box. The packaging box can be the above-mentioned packaging box that is attached to the outer surface of the packaging box by heat shrinking, or it can be attached to the outer surface of the packaging box by vacuuming.

[0032] The bagging and film sealing packaging machine of the packaging box comprises a bag pulling and opening station 10 and a bagging station 20 which are arranged at intervals. The direction in which the bag pulling and opening station 10 and the bagging station 20 are arranged at intervals is defined as the X-axis, the direction perpendicular to the X-axis on the plane where the film packaging bag 200 is located after being tightened is defined as the Y-axis direction, and the direction perpendicular to the X-axis and the Y-axis is defined as the Z-axis direction.

[0033] In the X-axis direction, a bag supply mechanism 1 and a bag pulling mechanism 2 are respectively arranged on both sides of the bag pulling and opening station 10. The bag supply mechanism 1 is used to place the packaging bag roll and convey the end of the packaging bag roll to one side of the bag pulling and opening station 10. The bag pulling mechanism 2 is arranged on the other side of the bag pulling and opening station 10 in the X-axis direction. The bag pulling mechanism 2 is used to pull the end of the packaging bag roll along the X-axis direction to cross the bag pulling and opening station 10 so as to sequentially supply a single film packaging bag 200 to the bag pulling and opening station 10. The bag pulling mechanism 2 is also used to cooperate with the bag supply mechanism to tighten the film packaging bag 200. The bag supply mechanism 1 has a plurality of rollers. The long strip film pulled out of the packaging bag roll 300 is sequentially wound around the plurality of rollers and tensioned, so that it is tightened into a plane shape under the tension of the bag pulling mechanism 2.

[0034] The bag pulling mechanism 2 includes a plurality of clamping jaws 21, which open and close to clamp or release one end of the film packaging bag 200. When the clamping jaws 21 of the bag pulling mechanism 2 clamp one end of the film packaging bag 200, as it moves away from the bag supply mechanism 1 along the X-axis direction, the film packaging bag 200 is pulled out to cross the bag pulling and opening station 10 and is tightened in preparation for subsequent bag opening.

[0035] See also Figures 1 to 4 As shown, a bag opening and moving mechanism 3 is provided on one side of the bag pulling and opening station 10 in the Y-axis direction, including a clamp assembly 31, which is configured to be movable along the X-axis direction. The clamp assembly 31 is used to open the bag opening of the film packaging bag 200 and move the film packaging bag 200 from the bag pulling and opening station 10 to the bag filling station 20 along the X-axis direction.

[0036] A conveyor belt 4 and a box-pushing mechanism 5 are also provided on one side of the bagging station 20 in the Y-axis direction. The conveyor belt 4 is used for loading the packaging box 100. The conveyor belt 4 is arranged on the side of the bag opening and moving mechanism 3 away from the bagging station 20. A box-pushing station 30 corresponding to the bagging station 20 is also provided. The conveyor belt 4 conveys the packaging box 100 to the box-pushing station 30. The box-pushing mechanism 5 is connected to the conveyor belt 4 to push the packaging box 100 on the box-pushing station 30 toward the bagging station 20, thereby feeding the packaging box 100 into the film packaging bag 200 with the bag opening opened. The box-pushing mechanism 5 has a material pushing member 51 that can move along the Y-axis direction. The material pushing member 51 moves along the Y-axis direction to push the packaging box 100 on the box-pushing station 30 toward the bagging station 20, thereby pushing the packaging box 100 into the film packaging bag 200 with the bag opening opened. The pushing member 51 can also retreat along the Y-axis direction to make way for the packaging box 100 , so that the packaging box 100 can be moved to the box pushing station 30 under the conveying action of the conveyor belt 4 to be ready for the pushing member 51 to push it to the bagging station 20 .

[0037] In this embodiment, the packaging box 100 is loaded automatically by moving the packaging box 100 along the X-axis direction through the conveyor belt 4. In other embodiments, the packaging box 100 can also be loaded by lifting, that is, a lifting feeding mechanism is provided to send the packaging box 100 to the box pushing station 30, and then the box pushing mechanism 5 sends the packaging box 100 from the box pushing station 30 to the bagging station 20. In addition, the loading of the packaging box 100 can also be manual, and the operator puts the packaging box 100 on the box station 30, and then the box pushing mechanism 5 sends the packaging box 100 from the box pushing station 30 to the bagging station 20.

[0038] The present invention separates the bag pulling and opening station 10 from the bag filling station 20 to operate the bag pulling, bag opening and bag filling processes separately, and distributes the bag supply mechanism 1, bag pulling mechanism 2, bag opening and bag moving mechanism 3, and box pushing mechanism 5 corresponding to each process near the corresponding station, and then utilizes the clamp assembly 31 of the bag opening and bag moving mechanism 3 to simultaneously realize the bag opening and bag moving of the film packaging bag. Bag moving is to move the film packaging bag 200 from the bag pulling and bag opening station 10 to the bag filling station 20, so that the layout of the entire bagging and film sealing packaging machine is more reasonable, the layout of each mechanism is more dispersed, the accumulation of parts is reduced, and the failure rate and maintenance difficulty are reduced.

[0039] See also Figures 4 to 10 As shown, in order to realize the movement of the clamp assembly 31 along the X-axis direction, the bag opening and moving mechanism 3 includes a transverse sliding block 32 and a transverse sliding rail 33 extending along the X-axis direction. The clamp assembly 31 is connected to the transverse sliding block 32 so as to slide along the transverse sliding rail 33 with the transverse sliding block 32 to realize the movement along the X-axis direction. The transverse sliding block 32 is indirectly connected to the belt 341 of the transverse belt transmission mechanism 34 through the clamp plate. The transverse belt transmission mechanism 34 is also provided with a transverse motor 343 for driving the pulley 342 to rotate. The transverse motor 343 drives the pulley 342 to rotate when working, and then the clamp plate 321 and the transverse sliding block 32 move along the X-axis direction, thereby realizing the movement of the clamp assembly 31 along the X-axis direction.

[0040] The fixture assembly 31 includes two chuck groups spaced apart along the X-axis direction. The two chuck groups have the same structure. The structure of one of the chuck groups is described below as an example.

[0041] The clamping head group includes two clamping pieces 311 spaced apart in the Z-axis direction, and a clamping block 312 is respectively provided on the two clamping pieces 311 in the direction away from each other. The two clamping pieces 311 are respectively an upper clamping piece 311A ​​and a lower clamping piece 311B, and the upper clamping piece 311A ​​is provided with an upper clamping block 312A corresponding to the upper clamping piece 311A, and the lower clamping piece 311B is provided with a lower clamping block 312B corresponding to the lower clamping piece 311B. The upper clamping piece 311A ​​is provided to be lifted and lowered relative to the lower clamping piece 311B in the Z-axis direction so that the two clamping pieces 311 form a bag-supporting structure 31C that is selectively closed or opened. The bag-supporting structure 31C is closed for insertion between two layers of film of the film packaging bag 200, and the bag-supporting structure 31C is opened for separating the two layers of film of the film packaging bag 200 to open the bag opening. The clamp block 312 is arranged to be movable relative to the clamping piece 311 along the Z-axis direction so that the clamp block 312 and the clamping piece 311 corresponding to the clamp block 312 form a selectively closed or opened clamping bag structure 31D. The clamping bag structure 31D is opened to be inserted into both sides of a film layer of the film packaging bag 200, and the clamping bag structure 31D is closed to clamp the film. The upper clamping piece 311A ​​and the upper clamping block 312A form an upper clamping bag structure, and the lower clamping piece 311B and the lower clamping block 312B form a lower clamping bag structure. The upper clamping bag structure and the lower clamping bag structure are used to clamp the upper and lower layers of the film packaging bag 200, respectively.

[0042] In order to realize the lifting and lowering of the upper clamp 311A ​​relative to the lower clamp 311B, the bag opening and moving mechanism 3 is provided with a lifting slide rail 35 extending along the Z-axis direction, the lower clamp 311B and the lower clamp block 312B are arranged on the lower adjustment component 36B and are connected to the transverse slider 32 through the lower adjustment component 36B, the upper clamp 311A ​​and the upper clamp block 312A are arranged on the upper adjustment component 36A and are connected to the lifting slide rail 35 through the upper adjustment component 36A and a lifting slider 37, so as to realize the lifting and lowering of the upper clamp 311A ​​relative to the lower clamp 311B along the Z-axis direction.

[0043] The lifting rail 35 includes two rails arranged at intervals, and the lifting slider 37 includes two sliders corresponding to the rails. The lifting slider 37 is connected to a lifting nut 381 of a motor lifting module 38, and is driven by the motor lifting module 38 to rise and fall along the lifting rail 35, thereby driving the upper adjustment component 36A and the upper clamp 311A ​​and the upper clamp block 312A to rise and fall, thereby realizing the opening and closing of the upper clamp 311A ​​and the lower clamp 311B.

[0044] The lower end of the lifting slide rail 35 is also connected to the transverse slider 32, so that the transverse slider 32 can move along the X-axis direction to drive the upper adjustment component 36A, the upper clamp 311A ​​and the upper clamp block 312A arranged on the upper adjustment component 36A, the lower adjustment component 36B and the lower clamp 311B and the lower clamp block 312B arranged on the lower adjustment component 36B to move along the X-axis direction, thereby realizing that the transverse slider 32 moves along the X-axis direction to drive the clamp assembly 31 to move along the X-axis direction.

[0045] In order to realize the opening and closing of the bag clamping structure 31D, the clamping block 312 is connected to the clamping piece 311 through the bag clamping cylinder 313. The clamping piece 311 is connected to a mounting portion 314 for mounting the bag clamping cylinder 313. The clamping block 312 is arranged at the output end of the bag clamping cylinder 313, so that the clamping block 312 can be raised and lowered relative to the clamping piece along the Z-axis direction. The clamping blocks 312 of this embodiment are plastic blocks to prevent damage to the film during the process of clamping the film.

[0046] Each clamping head group of the clamp assembly 31 forms a bag-supporting structure 31C and a bag-clamping structure 31D through the cooperation of two clamping pieces 311 and two clamping blocks 312, so that the clamp assembly 31 can not only open the bag opening of the film packaging bag, but also move the film packaging bag 200 with the bag opening opened, realizing the two-in-one function of bag opening and bag moving, improving the utilization rate of parts and simplifying the structure of the bag opening and bag moving mechanism 3. By utilizing the bag moving function of the bag opening and bag moving mechanism 3, the film packaging bag 200 can be moved between the bag pulling and bag opening station 10 and the bag filling station 20. Since the film packaging bag 200 is soft and easily damaged, the opened bag opening is easy to be closed again, making it difficult to move. The two clips 311 and the two clamping blocks 312 of the present invention cooperate with each other. First, the clips 311 and the clamping blocks 312 are separated and the two clips 311 are closed, and the clips 311 are inserted between the two layers of film. The two clips 311 are opened to separate the two layers of film. The clamping blocks 312 and the corresponding clips are closed to clamp the film and transport the film packaging bag 200. During the transportation process, the two clips 311 can be separated to keep the bag opening open, or the two clips 311 can be closed until they are transported to the bagging station 20 and then the two clips 311 are separated to open the bag opening. No matter which time is chosen to open the bag opening, since the film has been clamped by the clips 311 and the clamping blocks 312 and the two clips 311 have been inserted between the two films, it is easy to open the bag opening before bagging. Therefore, the present invention adopts a clamp assembly 31 composed of two clamps 311 and two clamp blocks 312, and separates the bag pulling and opening station 10 and the bag filling station 20 to make the overall structural layout of the bagging and sealing packaging machine more reasonable, while taking into account the bag moving and bag opening between the two stations.

[0047] The upper adjustment component 36A includes an upper adjustment rail 361A extending along the X-axis direction. The upper clamping bag structure formed by the upper clamping piece 311A ​​and the upper clamping block 312A is connected to the upper adjustment rail 361A through the upper adjustment slider 362A. The upper clamping bag structure slides along the upper adjustment rail 361A to achieve position adjustment of the two upper clamping bag structures relative to the lifting rail 35.

[0048] The lower adjustment component 36B includes a lower adjustment rail 361B extending along the X-axis direction. The lower clamping bag structure formed by the lower clamping piece 311B and the lower clamping block 312B is connected to the lower adjustment rail 361B through the lower adjustment slider 362B. The lower clamping bag structure slides along the lower adjustment rail 361B to achieve position adjustment of the two lower clamping bag structures relative to the lifting rail 35, thereby achieving alignment adjustment of the upper clamping bag structure and the lower clamping bag structure in the Z-axis direction.

[0049] Since the film packaging bag 200 of this embodiment is formed by two layers of film, and the two layers of film are wound on a roll core to form a roll structure, there is a certain adhesion between the two layers of film, and the two layers of film are tightly attached together when pulled out. However, the bag support structure 31C formed by the two clips 311 has a certain thickness and is difficult to insert between the two films. For this reason, refer to Fig.11 As shown, the present embodiment is provided with a pre-opening bag mechanism 6, which includes a pre-opening bag sheet 61 provided on the bag supply mechanism 1 and a pre-opening bag hook 62 provided on the bag pulling mechanism 2. The pre-opening bag sheet 61 is used to be provided between two layers of film of the film packaging bag 200. When the packaging bag roll is installed, the two layers of film at the end of the packaging bag roll are respectively installed on the upper and lower sides of the pre-opening bag sheet 61, so that the two layers of film at the end of the packaging bag roll are separated by a certain distance. The pre-opening bag hook 62 is used to be inserted between the two layers of film of the film packaging bag 200. The pre-opening bag hook 62 cooperates with the pre-opening bag sheet 61 to separate the two layers of film of the film packaging bag 200 to form a bag opening with an opening. The opening of the bag opening is the maximum distance between the two layers of film. The opening of the bag opening is a first value under the action of the pre-opening bag mechanism 6. In this embodiment, in order to facilitate the pre-opening bag hook 62 to be inserted between two layers of film, a hook pocket groove 611 is provided in the middle of the pre-opening bag sheet 61, and the hook portion at the end of the pre-opening bag hook 62 passes through the hook pocket groove 611 and is inserted between the two layers of film.

[0050] Since the edge of the film packaging bag 200 facing the bag pulling mechanism 2 is sealed, the pre-opening hook 62 cannot be inserted between the two layers of film of the film packaging bag 200 as the bag pulling mechanism 2 moves along the X-axis direction. In order to insert the end of the pre-opening hook 62 into the film packaging bag 200, the pre-opening hook 62 has the function of moving along the Y-axis direction. More specifically, the pre-opening hook 62 is connected to a pre-opening cylinder 63. The pre-opening cylinder 63 is set in a direction so that its telescopic end can be telescoped along the Y-axis direction, thereby driving the pre-opening hook 62 to telescope along the Y-axis direction. When the pre-bag opening hook 62 approaches the pre-bag opening sheet 61, the pre-bag opening cylinder 63 extends to make the pre-bag opening hook 62 deviate from the film packaging bag 200. When the pre-bag opening hook 62 moves along the X-axis direction until it exceeds the sealing edge of the film packaging bag 200, the pre-bag opening cylinder 63 contracts to make the pre-bag opening hook 62 insert into the film packaging bag 200. Thereafter, the pre-bag opening hook 62 remains at an edge of the film packaging bag 200 as the bag pulling mechanism 2 pulls the bag, so that the two layers of film of the film packaging bag 200 maintain a certain distance, that is, the opening of the bag mouth is formed to the first value, which is convenient for the two closed clips 311 to be inserted into the bag mouth.

[0051] See also Figures 1 to 3 As shown, it also includes a bag suction mechanism 7, which is arranged above the bag pulling and opening station 10. The bag suction mechanism 7 includes a suction head 71 connected to a negative pressure suction device, so as to suck the upper film of the film packaging bag 200 upward to increase the opening of the bag opening formed by the pre-bag opening mechanism 6, so that the opening is increased to a second value. The clamp assembly 31 opens the bag opening of the film packaging bag 200 to increase the opening from the second value to a third value.

[0052] The bag suction mechanism 7 also includes a bag suction cylinder 72, and a suction head 71 is arranged at the output end of the bag suction cylinder 72. The output end of the bag suction cylinder 72 is retractable along the Z-axis direction. Under the action of the bag suction cylinder 72, the suction head 71 moves downward until it is adsorbed onto the upper film of the film packaging bag 200. The bag suction cylinder 72 contracts to move the suction head 71 upward by a certain distance, thereby increasing the bag opening of the film packaging bag 200 to a second value, so that the two clips 311 are easier to insert into the bag opening.

[0053] Since the two layers of film in the film packaging bag 200 have a certain suction force, and the pre-opening mechanism 6, the bag suction mechanism 7 and the bag support mechanism 31C of the clamp assembly 31 act on the side of the bag opening of the film packaging bag 200, it is difficult to fully open the side away from the bag opening, which is not conducive to subsequent bagging. The two layers of film in the film packaging bag 200 will form a certain bagging resistance, making it difficult for the packaging box 100 to be pushed into the film packaging bag 200. If the packaging box 100 is forced to be pushed in, the film packaging bag 200 may be damaged. For this reason, the bag opening and moving mechanism 3 is provided with a blowing component (the blowing component is not shown in the figure), and the air outlet of the blowing component is arranged toward the bag opening for blowing air into the bag opening to further separate the two layers of film in the film packaging bag 200. The blowing component is preferably arranged on one side of the clamp assembly 31, so that during the process of the clamp assembly 31 moving the bag, it can also blow air to open the film packaging bag 200, thereby improving work efficiency.

[0054] The bag supply mechanism 1 further includes a cutter assembly 11, which is arranged above the bag pulling and opening station 10 in a manner of lifting and lowering along the Z-axis direction. The cutter assembly 11 is used to cut the film packaging bag 200 when the film packaging bag 200 is tightened by the bag pulling mechanism 2 and clamped by the clamp assembly 31, so as to sequentially supply a single film packaging bag 200 to the bag pulling and opening station 10. The cutter assembly 11 of this embodiment has a hot melt cutter, which cuts the film so that the cut edge of the film packaging bag 200 is sealed.

[0055] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that the remaining undescribed portions are prior art, and that various changes made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims shall fall within the scope of protection of the present invention.

Claims

1. A bagging and film sealing packaging machine for packaging boxes, characterized in that: include: Bag opening and bag filling stations are set at intervals; The direction in which the bag opening station and the bag filling station are spaced apart is defined as the X axis. A bag supply mechanism, arranged at one side of the bag pulling and bag opening station along the X-axis direction, for placing a packaging bag roll and conveying the end of the packaging bag roll to one side of the bag pulling and bag opening station; A bag pulling mechanism is arranged on the other side of the bag pulling and bag opening station in the X-axis direction, and is used to pull the end of the packaging bag roll out in the X-axis direction to cross the bag pulling and bag opening station so as to sequentially supply a single film packaging bag to the bag pulling and bag opening station. The bag pulling mechanism is also used to cooperate with the bag supply mechanism to tighten the film packaging bag, and the direction perpendicular to the X-axis on the plane where the film packaging bag is located after being tightened is defined as the Y-axis direction; A bag opening and moving mechanism is arranged at one side of the bag opening and pulling station along the Y-axis direction, and the bag opening and moving mechanism includes a clamp assembly, and the clamp assembly is configured to be movable along the X-axis direction, and the clamp assembly is used to open the bag opening of the film packaging bag and move the film packaging bag from the bag opening and pulling station to the bagging station along the X-axis direction; A box pushing mechanism is arranged at one side of the bagging station along the Y-axis direction, and is used to push the packaging box into the film packaging bag with the bag opening opened.

2. The bagging and film sealing packaging machine for packaging boxes according to claim 1, characterized in that: The direction perpendicular to the X-axis and the Y-axis is defined as the Z-axis direction, the fixture assembly includes two chuck groups spaced apart along the X-axis direction, and each of the chuck groups includes two clips spaced apart along the Z-axis direction; One of the clips is arranged to be liftable along the Z-axis direction relative to the other clip so that the two clips form a bag-supporting structure that is selectively closed or opened. The bag-supporting structure is closed to be inserted between two layers of film in the film packaging bag, and the bag-supporting structure is opened to separate the two layers of film in the film packaging bag to open the bag opening; A clamping block is respectively provided on the two clips in the direction away from each other, and the clamping block is arranged to be liftable along the Z-axis direction relative to the clip so that the clamping block and the clip corresponding to the clamping block form a selectively closed or opened clamping bag structure, the clamping bag structure is opened to be inserted into both sides of a layer of film of the film packaging bag, and the clamping bag structure is closed to clamp the film.

3. The bagging and film sealing packaging machine for packaging boxes according to claim 2, characterized in that: The bag opening and moving mechanism includes a transverse sliding block and a transverse sliding rail extending in the X-axis direction, and the clamping assembly is connected to the transverse sliding block so as to slide along the transverse sliding rail with the transverse sliding block to realize movement in the X-axis direction; the transverse sliding block is connected to a lifting slide rail extending in the Z-axis direction. The two clamps are respectively an upper clamp and a lower clamp arranged below the upper clamp, and the clamp block corresponding to the upper clamp is an upper clamp block, and the clamp block corresponding to the lower clamp is a lower clamp block, the upper clamp and the upper clamp block form an upper clamping bag structure, and the lower clamp and the lower clamp block form a lower clamping bag structure, the lower clamping bag structure is arranged on the lower adjusting assembly and is connected to the transverse sliding block through the lower adjusting assembly, the upper clamping bag structure is arranged on the upper adjusting assembly and is connected to the lifting slide rail through the upper adjusting assembly and a lifting slider, so as to realize the lifting and lowering of the upper clamp relative to the lower clamp along the Z-axis direction.

4. The bagging and film sealing packaging machine for packaging boxes according to claim 3, characterized in that: The upper adjustment assembly includes an upper adjustment rail extending along the X-axis direction, an upper clamping bag structure and a lower clamping bag structure forming a clamping head group, the upper clamping bag structure is connected to the upper adjustment rail through an upper adjustment slider, and the upper clamping bag structure slides along the upper adjustment rail to achieve position adjustment of the two upper clamping bag structures relative to the lifting rail; The lower adjustment component includes a lower adjustment slide rail extending along the X-axis direction, and the lower bag clamping structure is connected to the lower adjustment slide rail through a lower adjustment slider. The lower bag clamping structure slides along the lower adjustment slide rail to achieve position adjustment of the two lower bag clamping structures relative to the lifting slide rail; thereby achieving alignment of the upper bag clamping structure and the lower bag clamping structure in the Z-axis direction.

5. The bagging and film sealing packaging machine for packaging boxes according to claim 2, characterized in that: The clamping block is connected to the clamping piece through a bag clamping cylinder, the clamping piece is connected with a mounting portion for mounting the bag clamping cylinder, and the clamping block is arranged at the output end of the bag clamping cylinder, so that the clamping block can be raised and lowered relative to the clamping piece along the Z-axis direction.

6. A bagging and film sealing packaging machine for packaging boxes according to any one of claims 1 to 5, characterized in that: The bag opening and moving mechanism is further provided with an air blowing assembly, the air outlet of which is arranged toward the bag opening so as to blow air toward the bag opening to further separate the two layers of the film in the film packaging bag.

7. The bagging and film sealing packaging machine for packaging boxes according to claim 1, characterized in that: The pre-bag-opening mechanism further comprises a pre-bag-opening sheet arranged on the bag supply mechanism and a pre-bag-opening hook arranged on the bag-pulling mechanism, the pre-bag-opening sheet is used to be arranged between two layers of film in the film packaging bag, the pre-bag-opening hook is used to be inserted between the two layers of film in the film packaging bag, and the pre-bag-opening hook is also used to cooperate with the pre-bag-opening sheet to separate the two layers of film in the film packaging bag to form a bag opening with an opening, the opening of the bag opening is the maximum distance between the two layers of film, and the opening is a first value under the action of the pre-bag-opening mechanism.

8. The bagging and film sealing packaging machine for packaging boxes according to claim 7, characterized in that: It also includes a bag suction mechanism, which is arranged above the bag pulling and opening station, and includes a suction head connected to a negative pressure suction device, so as to suck the upper film of the film packaging bag upward to increase the opening of the bag mouth formed by the pre-bag opening mechanism, so that the opening is increased to a second value, and the clamp assembly opens the bag mouth of the film packaging bag to increase the opening from the second value to a third value.

9. The bagging and film sealing packaging machine for packaging boxes according to claim 1, characterized in that: The direction perpendicular to the X-axis and the Y-axis is defined as the Z-axis direction. The bag supply mechanism also includes a cutter assembly, which is arranged above the bag pulling and opening station in a manner of being lifted and lowered along the Z-axis direction. The cutter assembly is used to cut the film packaging bag when the film packaging bag is clamped by the clamp assembly to supply individual film packaging bags to the bag pulling and opening station in sequence.

10. The bagging and film sealing packaging machine for packaging boxes according to claim 1, characterized in that: It also includes a conveyor belt for loading the packaging box, which is arranged on the side of the bag opening and moving mechanism away from the bag filling station. In the Y-axis direction, the conveyor belt is provided with a box pushing station corresponding to the bag filling station, and the box pushing mechanism is connected to the conveyor belt to push the packaging box on the box pushing station toward the bag filling station, thereby pushing the packaging box into the film packaging bag with the bag mouth opened.

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