A high-speed film strapping machine

Abstract

The present invention relates to a high-speed film strapping machine for fully automatic film changing and film splicing. The high-speed film strapping machine comprises a frame, a film conveying system, a box feeding mechanism, a box stacking mechanism, a first box pushing mechanism, a second box pushing mechanism, a longitudinal pushing mechanism, a third box pushing mechanism, and a box sealing mechanism; the feature is that the film conveying system comprises two film supply units located at the top and two film supply units located at the bottom, each film supply unit comprises a film roll roller for placing a film roll, a film sealing and cutting mechanism for film cutting and sealing, and a film break detector for film detection, and the film break detector is signal-connected to the film sealing and cutting mechanism. The high-speed film strapping machine can automatically cut off the used film roll, and at the same time heat-seal and join a new film roll to the tail of the used film roll to form a complete film roll. In this way, there is sufficient time for the operator to remove the used film roll and replace it with a new film roll at the same time, thereby forming a fully automatic film changing and film splicing process, and the machine does not need to be stopped.

Description

Technical Field

[0001] The invention relates to a packaging machine, in particular to a machine for bundling and packaging medicine boxes by means of films. Background Art

[0002] The blister cartoning machine is a device that loads blister plates (such as capsule medicine plates) and paper instructions into medicine boxes, while the film strapping machine is used for subsequent packaging of the blister cartoning machine, specifically, the medicine boxes arranged in one or more rows are strapped with plastic film. The working principle of the film strapping machine is as follows: the medicine boxes coming out of the blister cartoning machine first enter the box stacking mechanism of the box strapping equipment. When the medicine boxes are stacked into a set number of rows, the pushing mechanism pushes all the stacked medicine boxes to the front station, and then the box pushing mechanism in the front pushes one or more rows of set medicine boxes to the position where the film is located, and the film hugs the medicine boxes. Previous models were only equipped with two upper and lower film rolls. When either of the film rolls was used up, the machine needed to be stopped and the film roll needed to be replaced manually, which would cause the production line to stop and affect the upstream and downstream equipment. Manual film splicing would also cause a lot of waste, and at the same time increase the workload and the probability of error. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention innovatively provides a high-speed film strapping machine for fully automatic film changing and film splicing.

[0004] This high-speed film strapping machine includes a frame, a film conveying system, a box feeding mechanism, a box stacking mechanism, a first box pushing mechanism, a second box pushing mechanism, a longitudinal pushing mechanism, a third box pushing mechanism, and a box sealing mechanism; it is characterized in that: the film conveying system includes two film supply units located at the top and two film supply units located at the bottom, each film supply unit includes a film roll roller for placing a film roll, a film sealing and cutting mechanism for cutting and sealing the film, and a broken film detector for film detection, and the broken film detector is signal-connected to the film sealing and cutting mechanism.

[0005] A film control mechanism is provided between the two upper film supply units and between the two lower film supply units. The film control mechanism includes a film control roller and a film control power source for driving the film control roller to move left and right. The film control power source is signal-connected to the film break detector.

[0006] The film sealing and cutting mechanism comprises a film cutter and a heat sealing seat, wherein the film cutter and the heat sealing seat interact with each other through the driving of a sealing and cutting power source, and the film cutter has a blade interacting with the heat sealing seat and a heat sealing surface interacting with the heat sealing seat.

[0007] The box stacking mechanism includes two box stacking assemblies arranged on the left and right, each box stacking assembly includes a support bar, a lifting bar and a lower pressure bar, the support bar can be rotatably arranged and has a tendency to rotate inward, the bottom surface of the support bar has an inclined surface, the lifting bar is transmission-connected to a lifting power source that drives the lifting bar to rise and fall, and the lower pressure bar is located above the support bar and is liftably arranged on the side guide plate.

[0008] The first pushing box mechanism includes a pushing plate, a horizontal slide, a horizontal guide rail and a power source. The horizontal slide is slidably arranged on the horizontal guide rail, the horizontal slide is provided with a vertical slide, and the pushing plate is slidably arranged on the vertical slide through the vertical guide rail. A vertical guide groove plate is provided on one side of the horizontal guide rail, and an annular guide groove is provided on the guide groove plate. The lower section of the annular guide groove has an extension section guide groove extending forward, and the upper section of the annular guide groove has a climbing section, and the climbing section of the annular guide groove is connected with the extension section guide groove. A guide wheel is provided on the vertical guide rail, and the guide wheel is in the annular guide groove, and a one-way block is hinged on the guide groove plate, and the swing of the one-way block has a first state that allows the guide wheel to enter the extension section guide groove from the lower section of the annular guide groove and a second state that restricts the guide wheel from entering the lower section of the annular guide groove from the extension section guide groove and allows the guide wheel to enter the upper section of the annular guide groove.

[0009] A swing groove for swinging the one-way stopper is provided at the intersection of the extension section guide groove and the annular guide groove on the guide groove plate, and the depth of the swing groove is shallower than that of the annular guide groove.

[0010] The horizontal slide is connected with a tension spring, which is located at the rear side of the guide groove plate, and the upper end of the tension spring pulls the vertical guide rail.

[0011] The second box pushing mechanism includes two left and right box pushing rods and two driving force sources, wherein one box pushing rod is connected to the screw rod through a forward screw sleeve, and the other box pushing rod is connected to the screw rod through a reverse screw sleeve, the screw rod is connected to the motor in a transmission connection, the motor is installed on a movable slide, the movable slide is slidably arranged on a linear guide rail, and the two driving force sources are connected to the movable slide in a transmission connection.

[0012] The longitudinal pushing mechanism includes a longitudinal pushing plate and a longitudinal pushing force source for driving the longitudinal pushing plate to move longitudinally; the third box pushing mechanism includes three pushing plates and three pushing force sources for driving the three pushing plates to move forward and backward.

[0013] The box sealing mechanism comprises an upper box sealing knife and a lower box sealing knife. A damping zone is arranged on the front side of the upper box sealing knife and the lower box sealing knife. The damping zone is composed of two left and right damping plates. Brushes are arranged on the damping plates.

[0014] According to a high-definition film bundling machine provided by the present invention, the used film roll can be automatically cut off, and a new film roll can be heat-sealed and joined to the tail of the used film roll at the same time to form a complete film roll. In this way, there is sufficient time for the operator to remove the used film roll and replace it with a new film roll at the same time, thereby forming a fully automatic film replacement and film splicing process. The machine does not need to be stopped, the operation is simple, the film splicing is reliable, and materials are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention;

[0016] Figure 2 It is a front view of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the film conveying system;

[0018] Figure 4 A schematic diagram of the film sealing and cutting mechanism

[0019] Figure 5 for Figure 3 A partial enlarged view of the middle A;

[0020] Figure 6 It is a schematic diagram of film joining of the present invention;

[0021] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0022] Figure 8 It is a simplified diagram of the box stacking mechanism;

[0023] Fig. 9 is a front view of the first box pushing mechanism;

[0024] Fig.10 is a rear view of the first box pushing mechanism;

[0025] Fig.11 for Fig. 9 The dynamic flow chart at C in the middle;

[0026] Fig.12 is a structural schematic diagram of a second box pushing mechanism;

[0027] Fig.13 It is a structural schematic diagram of the longitudinal thrust mechanism;

[0028] Fig.14 is a structural schematic diagram of the third box pushing mechanism;

[0029] Fig.15 It is a schematic diagram of the box sealing mechanism. DETAILED DESCRIPTION

[0030] like Figure 1 As shown, the high-speed film strapping machine includes a frame, a film conveying system 1, a box feeding mechanism 2, a box stacking mechanism 4, a first box pushing mechanism 3, a second box pushing mechanism 5, a longitudinal pushing mechanism 6, a third box pushing mechanism 7, and a box sealing mechanism 8. The film conveying system 1 is used for supplying and conveying film; the box feeding mechanism 2 is used for conveying medicine boxes; the box stacking mechanism 4 is used for stacking a certain number of medicine boxes; the first box pushing mechanism 3 is used for pushing all the stacked medicine boxes forward; the second box pushing mechanism 5 is used for pushing the medicine boxes of a set number of rows forward; the longitudinal pushing mechanism 6 is used for longitudinally pushing the medicine boxes pushed by the second box pushing mechanism 5; the third box pushing mechanism 7 is used for pushing the medicine boxes pushed by the longitudinal pushing mechanism 7 forward; and the box sealing mechanism 8 is used for bundling and wrapping the medicine boxes pushed by the third box pushing mechanism 7 through film.

[0031] like Figure 1 and Figure 2 As shown, the box feeding mechanism 2 is an ordinary belt conveyor mechanism. The medicine boxes coming out of the cartoning machine first enter the box feeding mechanism 2 and are transported forward by the box feeding mechanism 2. A box pressing mechanism 20 is provided at the front end of the box feeding mechanism 2. The box pressing mechanism 20 has a row of pressing wheels. The medicine boxes are squeezed together front and back under the pressure of the pressing wheels and the driving force of the box feeding mechanism 2, and are transported forward, thereby entering the box stacking mechanism 4.

[0032] like Figure 1 and Figure 8 As shown, the box stacking mechanism 4 includes two box stacking components arranged on the left and right, each box stacking component includes a support bar 41, a lifting bar 40 and a lower pressure bar 43, the support bar 41 is rotatable and has a tendency to rotate inward (the support bar 41 can have a tendency to rotate inward by arranging a spring 42 on the outside and letting the spring 42 act on the support bar 41, or the support bar 41 can have a tendency to rotate inward by having the center of gravity of the support bar 41 biased inward), the bottom surface of the support bar 41 has an inclined surface, the lifting bar 40 is connected to a lifting power source that drives the lifting bar 40 to rise and fall, and the lower pressure bar 43 is located above the support bar 41 and is movably arranged on the side guide plate 44. When the box feeding mechanism 2 conveys a row of medicine boxes H on the horizontal plane to the left and right lifting bars 40 (for example Figure 2 The lifting power source drives the lifting bar 40 to lift this row of medicine boxes upwards. Since the support bar 41 can rotate and its bottom surface has an inclined surface, the support bar 41 is lifted up and rotated by the medicine box. When the medicine box comes to the top, the support bar 41 turns inward under the action of the spring 42 and returns to the original position, so that the support bar 41 is supported on the bottom of the medicine box. In this way, rows of medicine boxes in the vertical direction are stacked up, and since the lower pressing bar 43 is arranged on the side guide plate 44 in a liftable manner, the lower pressing bar 43 is always pressed on the top row of medicine boxes, and rises continuously as the medicine boxes are stacked, so that the medicine boxes always remain stable during the stacking process.

[0033] After the stacking mechanism 4 stacks the medicine boxes to a set number of layers, the first box pushing mechanism 3 pushes all the stacked medicine boxes forward. Figure 1 and Fig. 9 As shown, the first box pushing mechanism 3 includes a pushing plate 31, a horizontal slide 32, a horizontal guide rail 35 and a power source 36. The horizontal slide 32 is slidably arranged on the horizontal guide rail 35, and the pushing plate 31 is arranged on the horizontal slide 32. The horizontal slide 32 is driven by the power source 36 to move, and the pushing plate 31 pushes the medicine box forward. The combination of the power source 36 and the horizontal guide rail 35 can be an electric cylinder, which is the prior art.

[0034] In order to enable the push plate 31 to move along the annular track, the present invention is provided with a vertical slide 34 on the horizontal slide 32, and the push plate 31 slides on the vertical slide 34 through a vertical guide rail 33 (the push plate 31 is connected to the vertical guide rail 33, and the vertical guide rail 33 is slidably provided on the vertical slide 34); a vertical guide plate 38 is provided on one side of the horizontal guide rail 35, and an annular guide groove 380 is provided on the guide plate 38, and the lower section of the annular guide groove 380 has an extended section guide groove 381 extending forward (the extended section guide groove 381 is connected to the lower section of the annular guide groove 380 and is on the same straight line), The upper section of the annular guide groove 381 has a climbing section 3801, and the climbing section 3801 of the annular guide groove 380 is connected to the extension section guide groove 381; and a guide wheel 330 is provided on the vertical guide rail 33, and the guide wheel 330 is in the annular guide groove 380; in addition, a one-way block 39 is hinged on the guide groove plate 38, and the swing of the one-way block 39 has a first state in which the guide wheel 330 enters the extension section guide groove 381 from the lower section of the annular guide groove 380 and a second state in which the guide wheel 330 is restricted from entering the lower section of the annular guide groove 380 from the extension section guide groove 381 and the guide wheel 330 enters the upper section of the annular guide groove 380.

[0035] Its working principle is as follows: Fig. 9 As shown, when pushing is required, the power source 36 drives the horizontal slide 32 to move forward on the horizontal guide rail 35, so that the push plate 31 pushes the medicine box forward, as shown in FIG. Fig.11As shown, since the one-way block 39 has a first state that allows the guide wheel 330 to enter the extension section guide groove 381 from the lower section of the annular guide groove 380 (i.e., the one-way block 39 swings upward), the push plate 31 comes to the front and completes the material pushing work. At this time, the guide wheel 330 is in the extension section guide groove 381, and then the power source 36 drives the horizontal slide 32 to move back on the horizontal guide rail 35. Since the guide wheel 330 is restricted from entering the lower section of the annular guide groove 380 from the extension section guide groove 381, the guide wheel 330 is allowed to enter the second state of the upper section of the annular guide groove 380 (i.e., the one-way block 39 is in the state of itself Under the action of gravity, it swings downward to reset, and the one-way block 39 blocks the guide wheel 330 from entering the lower section of the annular guide groove 380 from the extended section guide groove 381). In this way, the guide wheel 330 can only move upward along the climbing section 3801 of the annular guide groove 380 and reach the upper section of the annular guide groove 380, while the vertical guide rail 33 moves upward on the vertical slide 34, so that the push plate 31 rises and returns. Since the push plate 31 rises, even if the push plate 31 is returning to its original position, it will not interfere with the working space of the stacking mechanism 4, so that the stacking mechanism 4 can operate continuously, thereby improving the speed of the whole machine.

[0036] Since the vertical guide rail 33 will pass in front of the one-way block 39, if the two are in the same plane, they will definitely interfere with each other, so the one-way block 39 is located closer to the inside of the vertical guide rail 33. Fig.11 As shown, at the intersection of the extended guide groove 381 and the annular guide groove 380 on the guide groove plate 38, there is a swing groove 382 for the one-way block 39 to swing. The depth of the swing groove 382 is shallower than the depth of the annular guide groove 380, and the one-way block 39 is located in the swing groove 382. Through this structure, the path of the annular guide groove 380 is not affected, and at the same time, the one-way block 39 is in the swing groove 382, ​​avoiding the vertical guide rail 33.

[0037] In order to make the guide wheel 330 move more smoothly from the extension guide groove 381 to the upper section of the annular guide groove 380, as shown in FIG. Fig.11 As shown, the upper surface of the one-way block 39 has a straight edge 390 parallel to the annular guide groove climbing section 3801 and an arc edge 391 connecting the annular guide groove climbing section 3801 and the extension section guide groove 381. When the guide wheel 330 transitions from the extension section guide groove 381 to the annular guide groove climbing section 3801, it moves along the arc edge 391 of the one-way block 39, and then enters the annular guide groove climbing section 3801 along the straight edge 390 of the one-way block 39.

[0038] Since there is only one guide wheel 330 in the annular guide groove 380 on the upper part of the vertical guide rail 33, that is, only this point of the vertical guide rail 33 is supported, the vertical guide rail 33 may not be stable enough when running. In order to solve this problem, Fig.10As shown, the present invention is connected to a tension spring 37 on the horizontal slide 32, and the tension spring 37 is located at the rear side of the guide slot plate 38, and the upper end of the tension spring 37 pulls the upper end of the vertical guide rail 33. Through the pulling of the tension spring 37, both the lower end and the upper end of the vertical guide rail 33 are stressed, so that the vertical guide rail 33 can maintain balance and run more stably.

[0039] After the first box pushing mechanism 3 pushes all the medicine boxes out, the second box pushing mechanism 5 pushes out the medicine boxes of a set number of rows, for example Figure 2 If you want to bundle two rows of medicine boxes on the left and right (set according to customer needs), just push the distance between the two rows of medicine boxes.

[0040] like Fig.12 As shown, the second box pushing mechanism 5 includes two left and right box pushing rods 50 and two driving force sources 57, wherein one box pushing rod 50 is connected to the screw rod 53 through a forward screw sleeve 51, and the other box pushing rod 50 is connected to the screw rod 53 through a reverse screw sleeve 52, the screw rod 53 is transmission connected to the motor 54, and the motor 54 is installed on a movable slide 55, and the movable slide 55 is slidably set on a linear guide rail 56, and the two driving force sources 57 are transmission connected to the movable slide 55. When the second box pushing mechanism 5 is working, the two driving force sources 57 drive the movable slide 55 to move on the linear guide rail 56, and the left and right box pushing rods 50 push the medicine boxes to move a certain distance and push the medicine boxes of the set number of rows forward. When the box pushing rods 50 have pushed all the medicine boxes, the motor 54 drives the screw rod 53 to rotate. Since one box pushing rod 50 is connected to the screw rod through the forward screw sleeve 51, and the other box pushing rod 50 is connected to the screw rod 53 through the reverse screw sleeve 52, one box pushing rod 50 moves to the left on the screw rod 53, and the other box pushing rod 50 moves to the right on the screw rod 53, so that the left and right box pushing rods 50 are opened, and then the two driving force sources 57 drive the movable slide 55 to return, and the pushing plate 31 of the first box pushing mechanism 3 is just in the middle of the double box pushing rods 50, and the paths do not overlap. Therefore, the first box pushing mechanism 3 can work continuously, and the speed of the whole machine can be improved through the U-shaped walking trajectory of the left and right box pushing rods 50.

[0041] After the second box pushing mechanism 5 pushes the medicine boxes of the set number of rows, the longitudinal pushing mechanism 6 pushes these medicine boxes longitudinally to one side. Fig.13 As shown, the longitudinal pushing mechanism 6 includes a longitudinal pushing plate 60 and a longitudinal pushing force source 61 for driving the longitudinal pushing plate 60 to move longitudinally. Driven by the longitudinal pushing force source 61, the longitudinal pushing plate 60 moves longitudinally to push the medicine box to the station where the third box pushing mechanism 7 is located. Fig.14 As shown, the third box pushing mechanism 7 includes three pushing plates 70 and three driving force sources 71 for driving the three pushing plates 70 to move forward and backward. Driven by the three driving force sources 71, the three pushing plates 70 push the medicine boxes to the workstation where the box sealing mechanism 8 is located, and the box sealing mechanism 8 bundles the medicine boxes.

[0042] like Figure 2 and Fig.15 As shown, the box sealing mechanism 8 includes an upper box sealing knife 80 and a lower box sealing knife 81. The front sides of the upper box sealing knife 80 and the lower box sealing knife 81 are provided with a damping zone, which is composed of two left and right damping plates 82. The damping plates 82 are provided with bristles 83. When the third box pushing mechanism 7 moves the medicine box forward, the upright film is pushed forward and stretched by the medicine box and wraps the medicine box. When the medicine box is pushed to the damping zone, the bristles 83 give the medicine box a reverse force to buffer the moving speed of the medicine box, so that the film better wraps the medicine box. Then the upper box sealing knife 80 and the lower box sealing knife 81 act together to cut the film, so that the film completely binds the medicine box, and at the same time, the cut upper and lower ends of the film are sealed together, thereby completing the bundling work of the medicine box.

[0043] As described above, the film is transported by the film transport system 1, such as Figure 3 As shown, the film conveying system 1 includes two film supply units 10 located at the top and two film supply units 10 located at the bottom. Each film supply unit 10 includes a film roll roller 101 for placing a film roll, a film sealing and cutting mechanism 103 for cutting and sealing the film, and a broken film detector 102 for film detection. The broken film detector 102 is signal-connected to the film sealing and cutting mechanism 103.

[0044] like Figure 6 As shown, after the two upper film supply units 10 and the two lower film supply units 10 have placed the film rolls, they need to be spliced ​​in advance. The film splicing principle of the two upper film supply units 10 is the same as that of the two lower film supply units 10. The following takes the two upper film supply units 10 as an example to illustrate the film splicing principle between the two corresponding film supply units 10: Figure 7 As shown, the film supply unit 10 on the left supplies film normally, and the film roll on the film supply unit 10 on the right is pulled over and placed in the film sealing and cutting mechanism 13 of the film supply unit on the left, so that the film on the left film roll is side by side with the film on the right film roll. When the film break detector 102 of the film supply unit on the left detects that the film on the left film roll is used up (the film break detector 102 can be a photoelectric eye detector or a mechanical detector, as long as it can detect that the film is used up), the film break detector 102 transmits a signal to the film sealing and cutting mechanism 103 of the film supply unit on the left (that is, the signals of the two are connected), and the film sealing and cutting mechanism 103 cuts off the film on the left film roll, and at the same time, heat-seals the head of the right film roll to the tail of the left film roll, so that the film roll on the right is connected and continues to supply film. At the same time, a new film roll is manually placed on the film roll roller 101 of the film supply unit on the left, and the new film roll is pulled over and placed in the film sealing and cutting mechanism of the film supply unit on the right. In this cycle, the machine does not need to stop, the operation is simple, and the film connection is reliable.

[0045] like Figure 4As shown, the film sealing and cutting mechanism 103 includes a film cutter 104 and a heat sealing seat 105, and the film cutter 104 and the heat sealing seat 105 interact with each other through the driving of the sealing and cutting power source, wherein the film cutter 104 has a blade 106 for cutting the film and a heat sealing surface 107 that interacts with the heat sealing seat 105. When receiving the signal of the film cutting detector 102, the sealing and cutting power source drives the film cutter 104 to interact with the heat sealing seat 105, and the blade 106 of the film cutter 104 cuts off the lower part of the left and right films, and at the same time, the heat sealing surface 107 of the film cutter 104 interacts with the heat sealing seat 105 to heat-seal the upper part of the left and right films together to form a joint surface 108, so that the film connection is completed.

[0046] When the film is connected, the film outlet point of the film supply unit will change, such as Figure 3 and Figure 5 As shown in the figure, when the film roll on the right is connected, the film outlet point of the right film supply unit 10 will be shifted to the right. In order to prevent the film from rubbing against other components, it is necessary to keep the film in a vertical tensioned state in the film sealing and cutting mechanism 103. For this purpose, the present invention provides a film control mechanism 11 between the two upper film supply units 10 and between the two lower film supply units 10. Figure 5 As shown, the film control mechanism 11 includes a film control roller 110 and a film control power source 111 for driving the film control roller 110 to move left and right, and a signal connection is formed between the film control power source 111 and the film break detector 102. When the film sealing and cutting mechanism 103 completes film cutting, the film break detector 102 transmits a signal to the film control mechanism 11, and the film control power source 111 drives the film control roller 110 to move to the right, so that the film outlet point of the right film supply unit 10 maintains a vertical tension state, so that the film does not rub against other components, and the normal conveyance of the film is ensured.

[0047] There are many ways for the film control power source 111 to control the film control roller 110 to move left and right, such as installing the film control roller 110 on a slide, and the film control power source 111 drives the slide to move. Figure 5 As shown, the film control roller 110 is connected to the film control swing arm 112, one end of the film control swing arm 112 is hinged, and the film control power source 111 is transmission-connected to the film control swing arm 112. Driven by the film control power source 111, the film control swing arm 112 swings left and right, so that the film control roller 110 can move left and right.

Claims

1. A high-speed film strapping machine, comprising a frame, a film conveying system (1), a box feeding mechanism (2), a box stacking mechanism (4), a first box pushing mechanism (3), a second box pushing mechanism (5), a longitudinal pushing mechanism (6), a third box pushing mechanism (7), and a box sealing mechanism (8); characterized in that: The film conveying system (1) comprises two film supply units (10) located at the top and two film supply units (10) located at the bottom, each film supply unit (10) comprises a film roll roller (101) for placing a film roll, a film sealing and cutting mechanism (103) for cutting and sealing the film, and a film break detector (102) for film detection, and the film break detector (102) is signal-connected to the film sealing and cutting mechanism (103); the box stacking mechanism (4) comprises two box stacking assemblies arranged on the left and right, each box stacking assembly comprises a support bar (41), a lifting bar ( The lifting bar (40) and the lower pressing bar (43) are arranged to rotate inwardly, the bottom surface of the supporting bar (41) has an inclined surface, the lifting bar (40) is connected to the lifting power source for driving the lifting bar (40) to move up and down, the lower pressing bar (43) is located above the supporting bar (41) and is arranged on the side guide plate (44) in a manner that it can be lifted and lowered; the first box pushing mechanism includes a pushing plate (31), a horizontal slide seat (32), a horizontal guide rail (35) and a power source (36), the horizontal slide seat (32) is slidably arranged on the horizontal guide rail The horizontal guide rail (35) is provided with a vertical slide (34) on the horizontal slide (32), the push plate (31) is slidably arranged on the vertical slide (34) through the vertical guide rail (33), a vertical guide groove plate (38) is provided on one side of the horizontal guide rail (35), the guide groove plate (38) is provided with an annular guide groove (380), the lower section of the annular guide groove (380) has an extension section guide groove (381) extending forward, the upper section of the annular guide groove (380) has a climbing section (3801), the climbing section (3801) of the annular guide groove (380) and the extension section (381) are connected to each other. The guide grooves (381) are connected to each other, a guide wheel (330) is provided on the vertical guide rail (33), the guide wheel (330) is located in the annular guide groove (380), a one-way block (39) is hinged on the guide groove plate (38), and the swing of the one-way block (39) has a first state in which the guide wheel (330) is allowed to enter the extension section guide groove (381) from the lower section of the annular guide groove (380), and a second state in which the guide wheel (330) is restricted from entering the lower section of the annular guide groove (380) from the extension section guide groove (381) and the guide wheel (330) is allowed to enter the upper section of the annular guide groove (380).

2. A high-speed film strapping machine according to claim 1, characterized in that: A film control mechanism (11) is provided between the two upper film supply units (10) and between the two lower film supply units (10). The film control mechanism (11) comprises a film control roller (110) and a film control power source (111) for driving the film control roller (110) to move left and right. A signal connection is established between the film control power source (111) and the film break detector (102).

3. A high-speed film strapping machine according to claim 2, characterized in that: The film sealing and cutting mechanism (103) comprises a film cutter (104) and a heat sealing seat (105), wherein the film cutter (104) and the heat sealing seat (105) interact with each other through the drive of a sealing and cutting power source, and the film cutter (104) has a blade (106) interacting with the heat sealing seat (105) and a heat sealing surface (107) interacting with the heat sealing seat (105).

4. A high-speed film strapping machine according to claim 1, characterized in that: A swing groove (382) for the one-way stopper (39) to swing is provided at the intersection of the extension section guide groove (381) and the annular guide groove (380) on the guide groove plate (38), and the depth of the swing groove (382) is shallower than the depth of the annular guide groove (380).

5. A high-speed film strapping machine according to claim 1 or 4, characterized in that: A tension spring (37) is connected to the horizontal slide seat (32). The tension spring (37) is located at the rear side of the guide groove plate (38). The upper end of the tension spring (37) pulls the vertical guide rail (33).

6. A high-speed film strapping machine according to claim 1, characterized in that: The second box pushing mechanism (5) comprises two left and right box pushing rods (50) and two driving force sources (57), wherein one box pushing rod (50) is connected to a screw rod (53) via a forward screw sleeve (51), and the other box pushing rod (50) is connected to the screw rod (53) via a reverse screw sleeve (52), the screw rod (53) is connected to a motor (54) in a transmission connection, the motor (54) is mounted on a movable slide (55), the movable slide (55) is slidably arranged on a linear guide rail (56), and the two driving force sources (57) are connected to the movable slide (55) in a transmission connection.

7. A high-speed film strapping machine according to claim 1, characterized in that: The longitudinal pushing mechanism (6) comprises a longitudinal pushing plate (60) and a longitudinal pushing force source (61) for driving the longitudinal pushing plate (60) to move longitudinally; the third box pushing mechanism (7) comprises three pushing plates (70) and three pushing force sources (71) for driving the three pushing plates (70) to move forward and backward.

8. A high-speed film strapping machine according to claim 1, characterized in that: The box sealing mechanism (8) comprises an upper box sealing knife (80) and a lower box sealing knife (81); a damping zone is provided on the front side of the upper box sealing knife (80) and the lower box sealing knife (81); the damping zone is composed of two left and right damping plates (82); and bristles (83) are provided on the damping plates (82).

Images