A sealing machine

Abstract

The present invention discloses a sealing machine, comprising: a bottom plate; a plurality of supporting columns; a frame; a linear track provided with a slider; a lower template connected to the slider through a first pad, and the lower template is provided with a receiving groove; a first cylinder, whose telescopic rod is connected to the lower template; a lower film pressing plate, provided with a first opening corresponding to the receiving groove; an upper film pressing plate, provided with a second opening corresponding to the first opening; a knife holder plate, provided with a third opening corresponding to the second opening, and the knife holder plate is provided with a cutter; a heat sealing template, provided with a heat sealing mold corresponding to the third opening; a second cylinder, whose telescopic rod is connected to the heat sealing template; wherein the shape of the cross section of the inner hole of the cutter corresponds to the shape of the cross section of the bottle mouth, and the area of ​​the heat sealing mold is equal to the area of ​​the cross section of the inner hole of the cutter. In the above manner, the sealing machine disclosed by the present invention can ensure that a large amount of film roll will not remain on the edge of the bottle mouth after the film sealing is completed, and will not cause waste of film roll, and the appearance is also beautiful.

Description

Technical Field

[0001] The invention relates to the technical field of film sealing, in particular to a sealing machine. Background Art

[0002] With the continuous development of modern society, more and more bottled products appear in people's daily life. Before the bottled products are sold, it is usually necessary to seal the bottle mouth of the product so that the contents of the bottle are sealed from the outside environment, thereby facilitating the storage and transportation of the product.

[0003] However, when traditional sealing machines on the market seal the bottle mouth, they need to cut more film when cutting the film roll, so that a large amount of film still remains on the edge of the bottle mouth after sealing. On the one hand, it wastes the film roll, and on the other hand, it seriously affects the appearance and greatly reduces the user experience. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a sealing machine, which can ensure that a large amount of film roll will not remain on the edge of the bottle mouth after the film sealing is completed, and will not cause waste of film roll. The appearance is also beautiful, which greatly improves the user experience.

[0005] The lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of The plate is provided with a second opening corresponding to the first opening; a knife holder plate is located above the upper film pressing plate and is connected to the upper film pressing plate through a second spring, wherein the knife holder plate is provided with a third opening corresponding to the second opening, and the knife holder plate is provided with a cutter facing the upper film pressing plate; a heat sealing template is located above the knife holder plate and is connected to the knife holder plate through a third spring, wherein the heat sealing template is provided with a heat sealing mold corresponding to the third opening; a second cylinder is arranged in the frame, wherein the telescopic rod of the second cylinder is connected to the heat sealing template to control the heat sealing template to move toward the bottom plate; wherein the cutter is hollow and is arranged around the edge of the third opening, the shape of the cross section of the inner hole of the cutter corresponds to the shape of the cross section of the bottle mouth of the article, and the area of ​​the heat sealing mold is equal to the area of ​​the cross section of the inner hole of the cutter.

[0006] Furthermore, the telescopic rod of the second cylinder is connected to the heat-sealing template via a cylinder cross beam, and both ends of the cylinder cross beam are connected to the heat-sealing template via second cushion blocks.

[0007] Furthermore, the frame is provided with a plurality of limit posts facing the bottom plate, and the limit posts are sequentially penetrated through the heat sealing template, the knife holder plate, the upper film pressing plate and the lower film pressing plate.

[0008] Furthermore, a cylinder fixing seat is provided at one side end of the base plate, the shell of the first cylinder is connected to the cylinder fixing seat, and one end of the telescopic rod of the first cylinder away from the cylinder fixing seat is connected to the lower template through a connecting rod.

[0009] Furthermore, at least one third cylinder is provided on the other side end of the base plate, and the telescopic rod of the third cylinder is arranged vertically upward, wherein when the lower template moves to the other side end of the base plate, the receiving groove of the lower template is directly above the at least one third cylinder.

[0010] Further, the linear track includes a first linear track and a second linear track arranged at intervals on both sides of the base plate, wherein the at least one third cylinder is arranged between the first linear track and the second linear track, and the multiple support columns include a first support column, a second support column, a third support column and a fourth support column, the first support column and the second support column are symmetrically arranged, the third support column and the fourth support column are symmetrically arranged, the first support column and the third support column are arranged on a side of the first linear track away from the second linear track, and the second support column and the fourth support column are arranged on a side of the second linear track away from the first linear track.

[0011] Furthermore, a first rotating shaft for setting a unwinding drum and a second rotating shaft for setting a winding drum are provided at intervals on the top of the frame, wherein a first clamping plate and a second clamping plate are movably provided at both ends of the second rotating shaft, and the frame is also provided with a motor connected to the second rotating shaft.

[0012] Furthermore, a first film shaft is arranged between the first supporting column and the third supporting column, and a second film shaft is arranged between the second supporting column and the fourth supporting column, wherein the first film shaft and the second film shaft are both located below the frame.

[0013] Furthermore, a third rotating shaft is provided on the top of the frame, wherein an encoding bracket is rotatably provided on the third rotating shaft, an encoding wheel mounting plate and a sensor mounting plate are provided at one end of the encoding bracket away from the third rotating shaft, an encoding wheel is rotatably provided in the encoding wheel mounting plate, and a sensor for detecting the rotation length of the encoding wheel is provided in the sensor mounting plate.

[0014] Furthermore, the encoding bracket includes a first encoding bracket and a second encoding bracket vertically arranged to the first encoding bracket, the first encoding bracket is rotatably arranged on the third rotating axis at one end away from the second encoding bracket, and the second encoding bracket is provided with the encoding wheel mounting plate and the sensor mounting plate at one end away from the first encoding bracket, wherein the encoding wheel is connected to the roll film on the unwinding drum.

[0015] The beneficial effects of the present invention are as follows: different from the prior art, the sealing machine disclosed in the present invention comprises: a bottom plate; a plurality of supporting columns vertically arranged on both sides of the bottom plate; a frame arranged on the top of the plurality of supporting columns; a linear track arranged on the bottom plate, wherein a slider is arranged on the linear track; a lower template connected to the slider through a first cushion block, wherein the lower template is provided with a receiving groove for accommodating items to be sealed; a first cylinder arranged between the bottom plate and the lower template, wherein the telescopic rod of the first cylinder is connected to the lower template to drive the lower template to slide along the linear track; a lower film pressing plate located above the lower template, wherein the lower film pressing plate is provided with a first opening corresponding to the receiving groove; an upper film pressing plate located above the lower film pressing plate and connected to the lower film pressing plate through a first spring, wherein The upper film pressing plate is provided with a second opening corresponding to the first opening; the knife holder plate is located above the upper film pressing plate and is connected to the upper film pressing plate through a second spring, wherein the knife holder plate is provided with a third opening corresponding to the second opening, and the knife holder plate is provided with a cutter facing the upper film pressing plate; the heat sealing template is located above the knife holder plate and is connected to the knife holder plate through a third spring, wherein the heat sealing template is provided with a heat sealing mold corresponding to the third opening; the second cylinder is arranged in the frame, wherein the telescopic rod of the second cylinder is connected to the heat sealing template to control the heat sealing template to run toward the bottom plate; wherein the cutter is hollow and surrounds the edge of the third opening, the shape of the cross section of the inner hole of the cutter corresponds to the shape of the cross section of the bottle mouth of the article, and the area of ​​the heat sealing mold is equal to the area of ​​the cross section of the inner hole of the cutter. In the above manner, the sealing machine disclosed in the present invention can ensure that there will not be a large amount of residual film roll on the edge of the bottle mouth after the film sealing is completed, and the waste of film roll will not be caused, and the appearance is also beautiful, which greatly improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the sealing machine of the present invention;

[0017] Figure 2 yes Figure 1 A schematic diagram of the first partial structure of the middle sealing machine;

[0018] Figure 3 yes Figure 1 A second partial structural schematic diagram of the middle sealing machine;

[0019] Figure 4 yes Figure 1 A schematic diagram of the third partial structure of the middle sealing machine;

[0020] Figure 5 yes Figure 1 A schematic diagram of the fourth partial structure of the middle sealing machine;

[0021] Figure 6 yes Figure 1 Schematic diagram of the structure of the knife holder plate of the middle sealing machine. DETAILED DESCRIPTION

[0022] See also Figure 1-6 The sealing machine includes a bottom plate 10, a plurality of supporting columns, a frame 11, a linear track, a lower template 12, a first cylinder 13, a lower film pressing plate 14, an upper film pressing plate 15, a knife holder plate 16, a heat sealing template 17 and a second cylinder 18.

[0023] A plurality of support columns are vertically arranged on both sides of the base plate 10. Specifically, the plurality of support columns include a first support column 101, a second support column 102, a third support column 103 and a fourth support column 104, wherein the first support column 101 and the second support column 102 are symmetrically arranged, the third support column 103 and the fourth support column 104 are symmetrically arranged, and the first support column 101 and the third support column 103 are arranged on one side of the base plate 10, and the second support column 102 and the fourth support column 104 are arranged on the other side of the base plate.

[0024] The rack 11 is disposed on the top of a plurality of supporting columns, that is, the rack 11 is disposed on the top of the first supporting column 101 , the second supporting column 102 , the third supporting column 103 and the fourth supporting column 104 .

[0025] The linear track is arranged on the base plate 10 . It should be understood that the linear track is arranged on the base plate 10 along the length direction of the base plate 10 .

[0026] In this embodiment, the linear track includes a first linear track 105 and a second linear track 106 which are spaced apart on both sides of the base plate 10, wherein the first linear track 105 and the second linear track 106 are arranged between the first supporting column 101 and the second supporting column 102, that is, the first linear track 105 and the second linear track 106 are also arranged between the third supporting column 103 and the fourth supporting column 104.

[0027] That is, the first support column 101 and the third support column 103 are arranged on a side of the first linear track 105 away from the second linear track 106 , and the second support column 102 and the fourth support column 104 are arranged on a side of the second linear track 106 away from the first linear track 105 .

[0028] In this embodiment, a slider is provided on the linear track. Preferably, the first linear track 105 is provided with a first slider 1051, and the second linear track 106 is provided with a second slider 1061. It should be understood that there can be multiple first sliders 1051 and multiple second sliders 1061.

[0029] The lower template 12 is connected to the slider via the first cushion block 121. Specifically, there are multiple first cushion blocks 121, which can be connected to the first slider 1051 and the second slider 1061 respectively.

[0030] It should be understood that the slider can slide on the linear track, and the lower template 12 is connected to the slider via the first cushion block 121, so the lower template 12 can slide on the linear track.

[0031] In this embodiment, the lower template 12 is provided with a receiving groove for receiving objects to be sealed.

[0032] The first cylinder 13 is disposed between the bottom plate 10 and the lower template 12 , wherein a telescopic rod of the first cylinder 13 is connected to the lower template 12 to drive the lower template 12 to slide along the linear track.

[0033] It should be understood that the telescopic rod of the first cylinder 13 is arranged along the direction of the linear track, that is, the telescopic direction of the telescopic rod of the first cylinder 13 is parallel to the direction of the linear track.

[0034] In this embodiment, a cylinder fixing seat 131 is provided at one side end of the bottom plate 10, wherein the outer shell of the first cylinder 13 is connected to the cylinder fixing seat 131, and one end of the telescopic rod of the first cylinder 13 away from the cylinder fixing seat 131 is connected to the lower template 12 through a connecting rod 132, so that the lower template 12 is driven to slide along the linear track by the first cylinder 13. It should be understood that the cylinder fixing seat 131 is at one end of the linear track.

[0035] It is worth noting that the plurality of support columns are arranged at one end of the linear track, and the first cylinder 13 is also arranged at one end of the linear track, so the first cylinder 13 can drive the lower template 12 to slide from one end of the linear track to the other end of the linear track, and can also drive the lower template 12 to slide from the other end of the linear track to one end of the linear track. It should be understood that when the lower template 12 slides to one end of the linear track, the lower template 12 is located below the frame 11.

[0036] In this embodiment, at least one third cylinder 107 is further provided on the other side of the bottom plate 10, and the telescopic rod of the third cylinder 107 is arranged vertically upward. It should be understood that when the lower template 12 moves to the other side of the bottom plate 10, the receiving groove of the lower template 12 is directly above the at least one third cylinder 107, so that the third cylinder 107 can be extended to push out the items to be sealed in the receiving groove.

[0037] Preferably, at least one third cylinder 107 is disposed between the first linear rail 105 and the second linear rail 106 .

[0038] The lower pressing film plate 14 is located above the lower template 12. It should be understood that the roll film is arranged between the lower pressing film plate 14 and the lower template 12.

[0039] It should be understood that the lower film pressing plate 14 is arranged to be liftable. When the lower film pressing plate 14 descends to the lower template 12, the lower film pressing plate 14 stops, so that the lower film pressing plate 14 can move closer to the lower template 12 to squeeze the film roll.

[0040] In this embodiment, the lower pressing film plate 14 is provided with a first opening corresponding to the receiving groove.

[0041] The upper film pressing plate 15 is located above the lower film pressing plate 14, wherein the upper film pressing plate 15 is connected to the lower film pressing plate 14 through a first spring. It should be understood that the lower film pressing plate 14 and the upper film pressing plate 15 move synchronously, and when the lower film pressing plate 14 descends to the lower template 12, the lower film pressing plate 14 stops, and the upper film pressing plate 15 continues to descend. When the upper film pressing plate 15 presses the lower film pressing plate 14, the roll film is compressed, and the upper press template 15 stops. It should be understood that the roll film is arranged between the lower film pressing plate 14 and the upper film pressing plate 15.

[0042] In this embodiment, the upper film plate 15 is provided with a second opening corresponding to the first opening.

[0043] The knife holder plate 16 is located above the upper film pressing plate 15, and the knife holder plate 16 is connected to the upper film pressing plate 15 through the second spring. It should be understood that the knife holder plate 16 and the upper film pressing plate 15 move synchronously, and when the upper film pressing plate 15 stops, the knife holder plate 16 continues to descend toward the upper film pressing plate 15, and the knife holder plate 16 stops moving when the second spring is compressed to a certain distance. It is worth noting that when the knife holder plate 16 stops moving after the limit column 172 reaches the limit position, the cutter 162 is in the first opening, the second opening and the receiving groove, and at this time, the cutter 162 has cut the roll film into the required shape and size.

[0044] In this embodiment, the knife holder plate 16 is provided with a third opening 161 corresponding to the second opening, and the knife holder plate 16 is provided with a cutter 162 facing the upper film pressing plate 15. It should be understood that when the knife holder plate 16 is close to the upper film pressing plate 15, the cutter 162 is accommodated in the first opening and the second opening, so that the cutter 162 descends along the first opening and the second opening to cut the roll film covering the outside of the receiving groove.

[0045] Preferably, the cutter 162 is hollow and is disposed around the edge of the third opening 161. It should be understood that the cutter 162 moves along the inner walls of the first opening and the second opening.

[0046] The heat sealing template 17 is located above the knife frame plate 16, and the heat sealing template 17 is connected to the knife frame plate 16 through the third spring. It should be understood that the knife frame plate 16 and the heat sealing template 17 move synchronously, and when the knife frame plate 16 stops moving, the heat sealing template 17 continues to descend toward the knife frame plate 16, and when the third spring is compressed to a certain distance (that is, the second cylinder 18 reaches the stroke limit), the heat sealing template 17 stops moving.

[0047] In this embodiment, the heat sealing template 17 is provided with a heat sealing mold 173 corresponding to the third opening. Specifically, the heat sealing template 17 is provided with a heat sealing mold 173 facing the knife holder plate 16 by screws. When the heat sealing template 17 is close to the knife holder plate 16, the heat sealing mold 173 is accommodated in the first opening, the second opening and the third opening, so that the heat sealing mold 173 descends along the first opening, the second opening and the third opening to heat-seal the cut roll film in the receiving groove on the bottle mouth of the article.

[0048] In this embodiment, the shape of the cross section of the inner hole of the cutter 162 corresponds to the shape of the cross section of the bottle mouth of the article, so that the area of ​​the cut roll film is equal to the cross-sectional area of ​​the bottle mouth of the article, so that the cut roll film can be just sealed on the bottle mouth of the article, so that after the film sealing is completed, a large amount of roll film will not remain on the edge of the bottle mouth, resulting in no waste of roll film, and the appearance is also beautiful.

[0049] Preferably, the area of ​​the heat-sealing mold 173 is equal to the cross-sectional area of ​​the inner hole of the cutter 162, so that the cut roll film can be heat-sealed on the bottle mouth of the article.

[0050] The second cylinder 18 is disposed in the frame 11, wherein the telescopic rod of the second cylinder 18 is connected to the heat sealing template 17 to control the heat sealing template 17 to move toward the bottom plate 10. It should be understood that since the heat sealing template 17 is connected to the knife holder plate 16 through the third spring, the knife holder plate 16 is connected to the upper film pressing plate 15 through the second spring, and the upper film pressing plate 15 is connected to the lower film pressing plate 14 through the first spring, the second cylinder 18 drives the heat sealing template 17, the knife holder plate 16, the upper film pressing plate 15 and the lower film pressing plate 14 to move toward the bottom plate 10 synchronously.

[0051] In this embodiment, the telescopic rod of the second cylinder 18 is connected to the heat sealing template 17 through the cylinder crossbeam 171, and both ends of the cylinder crossbeam 171 are connected to the heat sealing template 17 through the second pads. It should be understood that the stability of the heat sealing template 17 can be increased by providing the cylinder crossbeam 171.

[0052] Preferably, the second cushion block is made of a cushioning material so as to have a cushioning effect.

[0053] In this embodiment, the frame 11 is provided with a plurality of limit columns 172 facing the base plate 10, wherein the limit columns 172 are sequentially passed through the heat sealing template 17, the tool holder plate 16, the upper film pressing plate 15 and the lower film pressing plate 14, so that the heat sealing template 17, the tool holder plate 16, the upper film pressing plate 15 and the lower film pressing plate 14 will not be offset, and provide movement distance limitation for the tool holder plate 16 and the cutter 162.

[0054] In this embodiment, a first rotating shaft for setting the unwinding drum 111 and a second rotating shaft for setting the winding drum 112 are provided at intervals on the top of the frame 11, wherein a first clamping plate 1121 and a second clamping plate 1122 are movably provided at both ends of the second rotating shaft.

[0055] Furthermore, the frame 11 is also provided with a motor 113 connected to the second rotating shaft, so that the second rotating shaft is driven to rotate by the motor 113 .

[0056] In this embodiment, a first film shaft 1011 is arranged between the first supporting column 101 and the third supporting column 103, and a second film shaft 1021 is arranged between the second supporting column 102 and the fourth supporting column 104, wherein the first film shaft 1011 and the second film shaft 1021 are both located below the frame 11 and provide guidance for the rolled film.

[0057] It should be understood that the rolled film of the unwinding drum 111 is wound around the first film shaft 1011 , passes between the lower film pressing plate 14 and the lower template 12 , and is wound around the second film shaft 1021 , and finally wound around the winding drum 112 .

[0058] In this embodiment, a third rotating shaft 110 is further provided on the top of the frame 11, wherein an encoding bracket is rotatably provided on the third rotating shaft 110, an encoding wheel mounting plate and a sensor mounting plate are provided at one end of the encoding bracket away from the third rotating shaft 110, and an encoding wheel 114 is rotatably provided in the encoding wheel mounting plate, and a sensor for detecting the rotation length of the encoding wheel 114 is provided in the sensor mounting plate.

[0059] Specifically, the encoding bracket includes a first encoding bracket 1101 and a second encoding bracket 1102 which is vertically arranged with respect to the first encoding bracket 1101. The end of the first encoding bracket 1101 away from the second encoding bracket 1102 is rotatably arranged on a third rotating axis. The end of the second encoding bracket 1102 away from the first encoding bracket 1101 is provided with an encoding wheel mounting plate and a sensor mounting plate, and the encoding wheel 114 is connected to the roll film on the unwinding drum 111, so that the encoding wheel 114 is driven to rotate when the unwinding drum 111 rotates during unwinding, so that the length of rotation of the encoding wheel 114 (i.e., the length of the roll film) can be detected by the sensor.

[0060] It is worth noting that the frame 11 of this embodiment is provided with a controller (such as a single-chip microcomputer of the 80C51 series) connected to the sensor, the motor, the first cylinder, the second cylinder and the third cylinder, so as to control the operation of the sensor, the motor, the first cylinder, the second cylinder and the third cylinder through the controller.

[0061] Specific working principle:

[0062] The first cylinder 13 drives the lower template 12 to move to the other end of the linear track, and then the packaging box, materials and other items are placed in the receiving groove of the lower template 12;

[0063] The first cylinder 13 drives the lower template 12 to move to one end of the linear track, and at this time the lower template 12 is directly below the lower pressing film plate 14;

[0064] The telescopic rod of the second cylinder 18 extends toward the bottom plate 10, and at this time drives the heat sealing template 17, the knife holder plate 16, the upper film pressing plate 15 and the lower film pressing plate 14 to descend;

[0065] When the lower film pressing plate 14 contacts the lower template 12, the lower template 12 is stuck by the lower film pressing plate 14 and no longer descends, and the heat sealing template 17, the knife holder plate 16 and the upper film pressing plate 15 continue to descend; when the upper film pressing plate 15 contacts the lower film pressing plate 14, the upper film pressing plate 15 stops descending, and the film roll is compressed, while the heat sealing template 17 and the knife holder plate 16 continue to descend; when the knife holder plate 16 approaches the upper film pressing plate 15, the cutter 162 of the knife holder plate 16 enters the first opening, the second opening and the receiving groove to cut the film roll outside the receiving groove; when the second spring is compressed to a certain distance (that is, the limit column 172 reaches the limit position), the knife holder plate 16 stops The heat sealing template 17 stops descending, at this time the cutter 162 has finished cutting the film roll, and the heat sealing template 17 continues to descend; the heat sealing mold 173 of the heat sealing template 17 enters the first opening, the second opening, the third opening and the receiving groove, when the heat sealing mold 173 of the heat sealing template 17 presses the film roll, the cut film roll is sealed in the bottle mouth of the article, and the film sealing is completed, then the second cylinder 18 stops working to make the heat sealing template 17, the knife holder plate 16, the upper film pressing plate 15 and the lower film pressing plate 14 stop moving, when the film sealing is completed, the telescopic rod of the second cylinder 18 retracts, at this time the heat sealing template 17, the knife holder plate 16, the upper film pressing plate 15 and the lower film pressing plate 14 retreat in sequence.

[0066] Finally, the telescopic rod of the first cylinder 13 is extended to bring the lower template 12 to the other end of the linear track. At this time, the lower template 12 is directly above the third cylinder 107, and then the telescopic rod of the third cylinder 107 is controlled to extend to eject the object from the receiving slot.

[0067] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sealing machine, characterized in that: include: Base plate; A plurality of supporting columns are vertically arranged on both sides of the bottom plate; A frame, arranged on top of the plurality of supporting columns; A linear track is arranged on the bottom plate, wherein a slider is arranged on the linear track; A lower template is connected to the slider via a first cushion block, wherein the lower template is provided with a receiving groove for receiving items to be sealed; A first cylinder is disposed between the bottom plate and the lower template, wherein a telescopic rod of the first cylinder is connected to the lower template to drive the lower template to slide along the linear track; A lower pressing film plate is located above the lower template, wherein the lower pressing film plate is provided with a first opening corresponding to the receiving groove; An upper pressing film plate is located above the lower pressing film plate and connected to the lower pressing film plate through a first spring, wherein the upper pressing film plate is provided with a second opening corresponding to the first opening; a knife holder plate, located above the upper film pressing plate and connected to the upper film pressing plate via a second spring, wherein the knife holder plate is provided with a third opening corresponding to the second opening, and the knife holder plate is provided with a cutting knife facing the upper film pressing plate; A heat sealing template is located above the knife holder plate and connected to the knife holder plate via a third spring, wherein the heat sealing template is provided with a heat sealing mold corresponding to the third opening; A second cylinder is disposed in the frame, wherein a telescopic rod of the second cylinder is connected to the heat-sealing template to control the heat-sealing template to move toward the bottom plate; The cutter is hollow and arranged around the edge of the third opening, the cross-sectional shape of the inner hole of the cutter corresponds to the cross-sectional shape of the bottle mouth of the article, and the area of ​​the heat sealing mold is equal to the cross-sectional area of ​​the inner hole of the cutter; The frame is provided with a controller connected with the sensor, the motor, the first cylinder, the second cylinder and the third cylinder, so as to control the operation of the sensor, the motor, the first cylinder, the second cylinder and the third cylinder through the controller; Specific working principle: The first cylinder drives the lower template to move to the other end of the linear track, at which time the packaging box and material items are placed in the receiving groove of the lower template; the first cylinder drives the lower template to move to one end of the linear track, at which time the lower template is directly below the lower film pressing plate; the telescopic rod of the second cylinder extends toward the bottom plate, at which time the heat sealing template, the knife holder plate, the upper film pressing plate and the lower film pressing plate are driven to descend; when the lower film pressing plate contacts the lower template, the lower template is stuck by the lower film pressing plate and no longer descends, at which time the heat sealing template, the knife holder plate and the upper film pressing plate continue to descend; when the upper film pressing plate contacts the lower film pressing plate, the upper film pressing plate stops descending, at which time the roll film is pressed, and the heat sealing template and the knife holder plate continue to descend; when the knife holder plate approaches the upper film pressing plate, the cutting knife of the knife holder plate enters the first opening, the second opening and the receiving groove to cut the roll film outside the receiving groove; After the spring is compressed to a certain distance, the limit column reaches the limit position, and the knife holder plate stops descending. At this time, the cutter has cut the film roll, and the heat sealing template continues to descend; the heat sealing mold of the heat sealing template enters the first opening, the second opening, the third opening and the receiving groove. When the heat sealing mold of the heat sealing template presses the film roll, the cut film roll is sealed in the bottle mouth of the article, and the film sealing is completed. Then the second cylinder stops working to make the heat sealing template, the knife holder plate, the upper film pressing plate and the lower film pressing plate stop moving. When the film sealing is completed, the telescopic rod of the second cylinder retracts, and the heat sealing template, the knife holder plate, the upper film pressing plate and the lower film pressing plate retreat in turn; finally, the telescopic rod of the first cylinder extends to bring the lower template to the other end of the linear track. At this time, the lower template is directly above the third cylinder, and then the telescopic rod of the third cylinder is controlled to extend to eject the article from the receiving groove.

2. The sealing machine according to claim 1, characterized in that: The telescopic rod of the second cylinder is connected to the heat-sealing template through a cylinder cross beam, and both ends of the cylinder cross beam are connected to the heat-sealing template through second cushion blocks.

3. The sealing machine according to claim 2, characterized in that: The frame is provided with a plurality of limiting posts facing the bottom plate, and the limiting posts are sequentially penetrated through the heat sealing template, the knife holder plate, the upper film pressing plate and the lower film pressing plate.

4. The sealing machine according to claim 3, characterized in that: A cylinder fixing seat is provided at one side end of the bottom plate, the shell of the first cylinder is connected to the cylinder fixing seat, and one end of the telescopic rod of the first cylinder away from the cylinder fixing seat is connected to the lower template through a connecting rod.

5. The sealing machine according to claim 4, characterized in that: At least one third cylinder is also provided on the other side of the base plate, and the telescopic rod of the third cylinder is arranged vertically upward, wherein when the lower template moves to the other side of the base plate, the receiving groove of the lower template is directly above the at least one third cylinder.

6. The sealing machine according to claim 5, characterized in that: The linear track includes a first linear track and a second linear track spaced apart on both sides of the base plate, wherein the at least one third cylinder is disposed between the first linear track and the second linear track, and the plurality of support columns include a first support column, a second support column, a third support column and a fourth support column, the first support column and the second support column are symmetrically disposed, the third support column and the fourth support column are symmetrically disposed, the first support column and the third support column are disposed on a side of the first linear track away from the second linear track, and the second support column and the fourth support column are disposed on a side of the second linear track away from the first linear track.

7. The sealing machine according to claim 6, characterized in that: The top of the frame is provided with a first rotating shaft for setting the unwinding drum and a second rotating shaft for setting the winding drum, wherein the first clamping plate and the second clamping plate are movably provided at both ends of the second rotating shaft, and the frame is also provided with a motor connected to the second rotating shaft.

8. The sealing machine according to claim 7, characterized in that: A first film shaft is disposed between the first supporting column and the third supporting column, and a second film shaft is disposed between the second supporting column and the fourth supporting column, wherein the first film shaft and the second film shaft are both located below the frame.

9. The sealing machine according to claim 8, characterized in that: A third rotating shaft is also provided on the top of the frame, wherein an encoding bracket is rotatably provided on the third rotating shaft, an encoding wheel mounting plate and a sensor mounting plate are provided at one end of the encoding bracket away from the third rotating shaft, an encoding wheel is rotatably provided in the encoding wheel mounting plate, and a sensor for detecting the rotation length of the encoding wheel is provided in the sensor mounting plate.

10. The sealing machine according to claim 9, characterized in that: The encoding bracket includes a first encoding bracket and a second encoding bracket vertically arranged with respect to the first encoding bracket, wherein the first encoding bracket is rotatably arranged on the third rotating shaft at one end away from the second encoding bracket, and the encoding wheel mounting plate and the sensor mounting plate are arranged at one end of the second encoding bracket away from the first encoding bracket, wherein the encoding wheel is connected with the roll film on the unwinding drum.

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