A transverse sealing packaging device

Abstract

The present application relates to the field of packaging machines, and in particular to a transverse sealing packaging device, comprising: an upper sealing rotation track; a lower sealing rotation track; multiple groups of upper sealing seats, which rotate along the upper sealing rotation track, and the distance between each group of upper sealing seats can be relatively adjusted; multiple groups of lower sealing seats, which are respectively arranged corresponding to each group of upper sealing seats, each group of lower sealing seats rotates along the lower sealing rotation track, and the distance between each group of lower sealing seats can be relatively adjusted; the corresponding upper sealing seats and lower sealing seats rotate synchronously and can interfere with each other to achieve sealing of the package. The present application has the advantage of being able to conveniently adjust the distance between adjacent sealing parts on the package to meet different packaging sealing requirements.

Description

Technical Field

[0001] The present application relates to the field of packaging machines, and in particular to a transverse sealing packaging device. Background Art

[0002] Horizontal seal packaging is a basic sealing method for packaging. It seals the bag horizontally to achieve a hermetic seal. This type of packaging machine is widely used not only in the food and pharmaceutical industries, but also in daily chemical products, cosmetics, hardware tools and other industries.

[0003] At present, the horizontal sealing mechanism of the horizontal sealing packaging machine mostly adopts a circular rotary sealing structure, which uses the upper and lower sealing cutters to rotate relative to each other to complete the sealing of the packaging film. This rotary horizontal sealing method has a simple structure and can achieve high-speed operation.

[0004] However, the current transverse sealing packaging machine can only maintain the same distance between adjacent sealing parts during continuous packaging, that is, to achieve uniform packaging sealing, because the rotation paths of the upper sealing cutter and the lower sealing cutter remain unchanged. When the product needs to be replaced and the distance between adjacent sealing parts on the package needs to be adjusted, the adjustment operation of the equipment is extremely difficult.

[0005] Therefore, there is an urgent need to provide a new solution to facilitate adjustment of the distance between adjacent sealing portions on a package to meet different packaging sealing requirements. Summary of the Invention

[0006] In order to facilitate the adjustment of the distance between adjacent sealing parts on a packaging bag and meet different packaging sealing requirements, the present application provides a transverse sealing packaging device.

[0007] The present application provides a transverse sealing packaging device, which adopts the following technical solution:

[0008] A transverse sealing packaging device, comprising:

[0009] Upper sealing rotation track;

[0010] Lower sealing rotation track;

[0011] Multiple groups of upper sealing seats rotate along the upper sealing rotation track, and the distance between each group of upper sealing seats can be relatively adjusted;

[0012] Multiple groups of lower sealing seats are respectively provided corresponding to each group of upper sealing seats. Each group of lower sealing seats rotates along the lower sealing rotation trajectory, and the distance between each group of lower sealing seats can be relatively adjusted;

[0013] The corresponding upper sealing seat and lower sealing seat rotate synchronously and can conflict with each other to achieve sealing of the package.

[0014] By adopting the above technical solution, during the operation, the corresponding upper sealing seat and lower sealing seat rotate along the upper sealing rotation trajectory and the lower sealing rotation trajectory respectively, so as to realize the horizontal sealing operation of the package. When it is necessary to adjust the distance between adjacent sealing parts on the package, the distance between the adjacent sealing openings on the package can be adjusted by directly adjusting the distance between multiple groups of upper sealing seats and synchronously adjusting the distance between multiple groups of lower sealing seats, thereby meeting different sealing requirements of the package, with simple operation and convenient operation.

[0015] Optionally, adjacent sides of the upper sealing track and the lower sealing track form a sealing stroke, and the sealing stroke is a straight conveying section.

[0016] By adopting the above technical solution and setting the sealing stroke as a linear conveying section, the sealing time of the package between the upper sealing seat and the lower sealing seat can be effectively extended, thereby ensuring the sealing quality of the package.

[0017] Optionally, also include:

[0018] Multiple groups of upper rotary mechanisms rotate on the upper sealing rotary track respectively, and each group of upper sealing seats is fixed to a group of upper rotary mechanisms respectively;

[0019] Multiple groups of lower rotary mechanisms are arranged corresponding to multiple groups of upper rotary mechanisms, and respectively rotate on the lower sealing rotary track. Each group of lower sealing seats is respectively fixed to a group of lower rotary mechanisms.

[0020] By adopting the above technical solution, each group of upper rotary mechanisms can drive each group of upper sealing seats to rotate, and at the same time, each group of lower rotary mechanisms can also drive each group of sealing seats to rotate, thereby realizing the sealing operation of the packaging.

[0021] Optionally, also include:

[0022] A plurality of sets of synchronous transmission mechanisms are respectively arranged between the corresponding upper rotary mechanism and the lower rotary mechanism, and are used to drive the corresponding upper rotary mechanism and the lower rotary mechanism to move synchronously.

[0023] By adopting the above technical solution, through the action of the synchronous transmission mechanism, the corresponding upper sealing seat and the lower sealing seat can be kept in synchronous operation, thereby ensuring sealing accuracy.

[0024] Optionally, also include:

[0025] The cutter is movably arranged in the upper sealing seat and / or the lower sealing seat. As the upper sealing seat and the lower sealing seat contact each other, the cutter can protrude from the upper sealing seat and / or the lower sealing seat to cut off the sealed part of the package.

[0026] By adopting the above technical solution, after the corresponding upper sealing seat and lower sealing seat complete the sealing of the package, the cutter protrudes from the upper sealing seat and / or the lower sealing seat to cut off the middle of the sealed part of the package, thereby realizing continuous operation of sealing and cutting the package.

[0027] Optionally, also include:

[0028] Multiple groups of upper knife shafts rotate along the upper sealing rotation trajectory, and the distance between each group of upper knife shafts can be relatively adjusted. Each group of upper sealing seats is respectively fixed to each group of upper knife shafts;

[0029] Multiple groups of lower knife shafts are respectively set corresponding to each group of upper knife shafts. Each group of lower knife shafts rotates along the lower sealing rotation trajectory. The distance between each group of lower knife shafts can be relatively adjusted. Each group of lower sealing seats is respectively fixed to each group of lower knife shafts.

[0030] By adopting the above technical solution, during operation, each group of upper knife shafts drives each group of upper sealing seats to follow the upper sealing rotation trajectory, and each group of lower knife shafts corresponds to each group of lower sealing seats to follow the lower sealing rotation trajectory, which can achieve the adaptation of the upper sealing seat and the lower sealing seat to complete the packaging sealing operation.

[0031] Optionally, also include:

[0032] A cutter, movably disposed in the upper sealing seat and / or the lower sealing seat;

[0033] A push seat is provided on the side of the corresponding upper cutter shaft and / or lower cutter shaft facing away from the sealing seat, is fixed to the cutter, and is used to drive the cutter to move;

[0034] A push spring is fixed between the push seat and the corresponding upper knife shaft and / or lower knife shaft, and is used to push the push seat to move away from the corresponding upper knife shaft and / or lower knife shaft to keep the cutter retracted into the upper sealing seat and / or lower sealing seat;

[0035] The resistance member is arranged at the corresponding position of the upper sealing rotation trajectory and / or the lower sealing rotation trajectory. When the corresponding upper sealing seat and the lower sealing seat conflict with each other, the resistance member can push the pushing seat toward the corresponding upper knife shaft and / or lower knife shaft to push the cutter to protrude from the upper sealing seat and / or the lower sealing seat, so as to cut the sealed package.

[0036] By adopting the above technical solution, under normal circumstances, the push spring pushes the push seat away from the upper knife shaft and / or the lower knife shaft to keep the cutter in the upper sealing seat and / or the lower sealing seat to facilitate the sealing operation of the package. When the package and the upper sealing seat and the lower sealing seat move to the position of the interference member, the interference member pushes the push seat, which can drive the cutter to protrude from the upper sealing seat and / or the lower sealing seat, thereby realizing the cutting of the package.

[0037] Optionally, also include:

[0038] Multiple sets of upper transmission shafts are arranged in the upper sealing rotation track and are used to drive each set of upper rotation mechanisms to rotate;

[0039] A plurality of lower transmission shafts are provided corresponding to the upper transmission shafts and arranged in the lower sealing rotation track, and are respectively used to drive the movement of each lower rotation mechanism.

[0040] By adopting the above technical solution, each group of upper transmission shafts drives each group of upper rotary mechanisms respectively, and each group of lower transmission shafts drives each group of lower rotary mechanisms respectively, which can avoid interference between each group of upper rotary mechanisms or each group of lower rotary mechanisms and ensure the normal operation of the upper rotary mechanism and the lower rotary mechanism.

[0041] Optionally, the upper slewing mechanism includes:

[0042] The upper driving sprocket is coaxially fixed to an upper transmission shaft, and the upper driving sprockets of each upper rotary mechanism are respectively fixed to different upper transmission shafts;

[0043] The upper driven sprockets are coaxially connected to the other upper transmission shafts;

[0044] An upper transmission chain is sleeved on an upper driving sprocket and a plurality of upper driven sprockets, and each of the upper sealing seats rotates along with each of the upper transmission chains;

[0045] The lower slewing mechanism includes:

[0046] The lower driving sprocket is coaxially fixed to a lower transmission shaft, and the lower driving sprockets of each lower rotary mechanism are respectively fixed to different lower transmission shafts;

[0047] Lower driven sprockets are coaxially rotatably connected to the respective lower transmission shafts;

[0048] The lower transmission chain is sleeved on the lower driving sprocket and a plurality of lower driven sprockets, and each of the lower sealing seats rotates along with each of the lower transmission chains.

[0049] By adopting the above technical solution, an upper transmission shaft drives the upper driving sprocket to rotate, and then cooperates with the rotation of multiple upper driven sprockets rotating on other upper transmission shafts to realize the rotation of the upper transmission chain, so as to drive a group of upper sealing seats to move. At the same time, a lower transmission shaft drives the lower driving sprocket to rotate, and then cooperates with the rotation of multiple lower driven sprockets rotating on other lower transmission shafts to realize the rotation of the lower transmission chain, so as to drive a group of lower sealing seats to move, thereby completing the sealing operation of the packaging.

[0050] Optionally, also include:

[0051] A frame structure, wherein the upper sealing rotary rail and the lower sealing track are both arranged in the frame structure;

[0052] The base is arranged on the lower side of the frame structure and is used to support the frame structure;

[0053] The lifting component is arranged between the base and the frame structure and is used to push the frame structure to move vertically.

[0054] By adopting the above technical solution, the lifting components drive the frame structure to move vertically, which can meet the needs of sealing operations at different heights.

[0055] In summary, this application includes at least one of the following beneficial technical effects:

[0056] 1. During operation, the corresponding upper and lower sealing seats rotate along the upper and lower sealing rotation trajectories respectively, enabling horizontal sealing of the package. When the distance between adjacent sealing portions on the package needs to be adjusted, the distance between multiple sets of upper sealing seats is directly adjusted, and the distance between multiple sets of lower sealing seats is simultaneously adjusted to achieve the distance between adjacent sealing portions on the package, thereby meeting different sealing requirements of the package. The operation is simple and convenient.

[0057] 2. By setting the sealing stroke as a linear conveying section, the sealing time of the package between the upper sealing seat and the lower sealing seat can be effectively extended, ensuring the sealing quality of the package.

[0058] 3. After the corresponding upper sealing seat and lower sealing seat complete the sealing of the package, the cutter protrudes from the upper sealing seat and the lower sealing seat respectively, so as to cut the middle of the sealed part of the package, thereby realizing the continuous operation of sealing and cutting the package. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 This is a front view of a transverse sealing packaging device according to an embodiment of the present application;

[0060] Figure 2 This is a schematic diagram of the side panel structure of a transverse sealing packaging device according to an embodiment of the present application;

[0061] Figure 3 is a cross-sectional schematic diagram of a transverse sealing packaging device according to an embodiment of the present application;

[0062] Figure 4 This is a schematic diagram of the knife shaft structure of a transverse sealing packaging device according to an embodiment of the present application;

[0063] Figure 5 This is a schematic cross-sectional view of a knife shaft structure of a transverse sealing packaging device according to an embodiment of the present application;

[0064] Figure 6 It is a schematic structural diagram of an upper transmission shaft and a lower transmission shaft of a transverse sealing packaging device in an embodiment of the present application.

[0065] Description of reference numerals:

[0066] 1. Frame structure; 11. Bottom plate; 12. Side plate; 121. Loading plate; 13. Crossbeam; 14. Upper sealing track groove; 15. Lower sealing track groove; 16. First reversing gear; 17. Second reversing gear; 18. Lead screw;

[0067] 2. Upper cutter shaft; 21. First upper cutter shaft; 22. Second upper cutter shaft; 23. Upper track bearing; 24. Upper sealing seat; 25. Locking groove;

[0068] 3. Lower cutter shaft; 31. First lower cutter shaft; 32. Second lower cutter shaft; 33. Lower track bearing; 34. Lower sealing seat; 35. Locking column;

[0069] 4. Gap slot; 41. Cutter; 42. Push seat; 43. Push spring; 44. Locking guard;

[0070] 5. Upper transmission shaft; 51. Upper driving sprocket; 52. Upper driven sprocket; 53. First driven gear; 54. Second driven gear;

[0071] 6. Lower transmission shaft; 61. Lower driving sprocket; 62. Lower driven sprocket; 63. First driving gear; 64. Second driving gear;

[0072] 7. Base; 71. Worm gear; 72. Drive shaft; 73. Worm; 74. Handwheel. DETAILED DESCRIPTION

[0073] The following is combined with Figure 1-6 This application is described in further detail.

[0074] The embodiment of the present application discloses a transverse sealing packaging device.

[0075] Reference Figure 1 A transverse sealing packaging device includes a frame structure 1. The frame structure 1 includes a horizontally arranged bottom plate 11, which is a long rectangular plate-shaped structure. Side plates 12 are vertically fixed to each end of the bottom plate 11 along its length. The side plates 12 are symmetrically arranged. A plurality of crossbeams 13 are also fixed between the side plates 12 to support the side plates 12 and improve the overall stability of the frame structure 1.

[0076] Reference Figure 1 and Figure 2A supporting plate 121 is vertically fixed to one side of the side panel 12 adjacent to the other side panel 12. The supporting plate 121 is parallel to the side panel 12. Upper sealing track grooves 14 are symmetrically formed on the upper portion of the supporting plate 121 and the side panel 12 on the side away from the supporting plate 121. Both upper sealing track grooves 14 are annular to form an upper sealing rotation track. Lower sealing track grooves 15 are symmetrically formed on the lower portion of the supporting plate 121 and the side panel 12 on the side away from the supporting plate 121. Both lower sealing track grooves 15 are annular to form a lower sealing rotation track.

[0077] Furthermore, the adjacent sides of the upper sealing track groove 14 and the lower sealing track groove 15 are the sealing strokes of the upper sealing rotary track and the lower sealing rotary track, and the sealing stroke extends along the feeding direction to form a horizontal straight conveying section, which is used to increase the sealing stroke time of the packaging bag.

[0078] Multiple sets of upper blade shafts 2 are provided in the area corresponding to the upper sealing rotation trajectory within the frame structure 1, and multiple sets of lower blade shafts 3 are provided in the area corresponding to the lower sealing rotation trajectory within the frame structure 1. The upper blade shafts 2 and lower blade shafts 3 are provided in correspondence. In this embodiment, two sets of upper blade shafts 2 and lower blade shafts 3 are used as an example.

[0079] Reference Figure 3 and Figure 4 Specifically, the upper cutter shaft 2 includes a first upper cutter shaft group consisting of two first upper cutter shafts 21, and a second upper cutter shaft group consisting of two second upper cutter shafts 22. The axes of the first upper cutter shaft 21 and the second upper cutter shaft 22 are both perpendicular to the feeding direction, and the end portions of the first upper cutter shaft 21 and the end portions of the second upper cutter shaft 22 are both rotatably connected to upper track bearings 23. The upper track bearings 23 are both inserted into the upper sealing track groove 14 and can move along the upper sealing track groove 14.

[0080] The lower cutter shaft 3 includes a first lower cutter shaft group consisting of two first lower cutter shafts 31, and a second lower cutter shaft group consisting of two second lower cutter shafts 32. The axes of the first lower cutter shaft 31 and the second lower cutter shaft 32 are also perpendicular to the feeding direction. The ends of the first lower cutter shaft 31 and the ends of the second lower cutter shaft 32 are both rotatably connected to the lower track bearings 33. The lower track bearings 33 are both inserted into the lower sealing track groove 15 and can move along the lower sealing track groove 15.

[0081] Reference Figure 1 An upper sealing seat 24 is fixed to the middle of the length direction of the upper knife shaft 2, and a lower sealing seat 34 is fixed to the middle of the length direction of the lower knife shaft 3. Both the upper sealing seat 24 and the lower sealing seat 34 are electric heating composite plates for achieving heat sealing of the packaging bag.

[0082] During operation, the first upper blade shaft 21 rotates synchronously with the first lower blade shaft 31, and the second upper blade shaft 22 corresponds to and rotates synchronously with the second lower blade shaft 32. That is, when the first upper blade shaft 21 drives the upper sealing seat 24 to rotate to the sealing stroke, the first lower blade shaft 31 also drives the lower sealing seat 34 to rotate to the sealing stroke and match the upper sealing seat 24 to achieve packaging sealing. Similarly, when the second upper blade shaft 22 drives the upper sealing seat 24 to rotate to the sealing stroke, the second lower blade shaft 32 also drives the lower sealing seat 34 to rotate to the sealing stroke and match the upper sealing seat 24 to achieve packaging sealing.

[0083] Reference Figure 4 and Figure 5 The upper sealing seat 24 and the lower sealing seat 34 are both formed with a clearance groove 4 in the middle of the width direction. The clearance groove 4 is arranged perpendicular to the feeding direction. A cutter 41 is arranged in the clearance groove 4. The length direction of the cutter 41 is the same as the length direction of the clearance groove 4, and the cutter 41 can move along the length direction perpendicular to the clearance groove 4 so that the cutter 41 can protrude or retract into the clearance groove 4.

[0084] A push seat 42 is also provided on the side of the upper blade shaft 2 and the lower blade shaft 3 facing away from the cutter 41. The push seat 42 passes through the upper blade shaft 2 or the lower blade shaft 3 and is fixed to the corresponding cutter 41. That is, the movement of the push seat 42 can drive the cutter 41 to extend and retract in the clearance groove 4. A push spring 43 is also fixed between the push seat 42 and the upper blade shaft 2 or the lower blade shaft 3. Under normal conditions, the push spring 43 pushes the seat 42 away from the upper blade shaft 2 or the lower blade shaft 3 to keep the cutter 41 retracted in the clearance groove 4, ensuring the sealing operation of the upper sealing seat 24 and the lower sealing seat 34.

[0085] Locking guards 44 are fixed to the outer sides of the pusher seats 42 of both the upper and lower blade shafts 2 and 3, respectively. The pusher seats 42 are positioned within these guards, securing the pusher seats 42 while limiting the maximum distance they can move away from the upper and lower blade shafts 2 and 3. Pusher posts are rotatably connected to both ends of the pusher seats 42 along the length of the cutters 41. Abutments (not shown) are also fixed to the discharge sides of the upper and lower sealing rotation paths within the frame structure 1. When the upper and lower sealing seats 24 and 34 rotate to the discharge side of the sealing stroke, the two abutments respectively contact and push the pusher posts of the pusher seats 42, thereby pushing the pusher seats 42 toward the corresponding upper and lower blade shafts 2 and 3. This causes the two cutters 41 to protrude from the clearance slots 4 of the upper and lower sealing seats 24 and 34, respectively, thereby severing the heat-sealed area of ​​the packaging bag and completing the continuous heat-sealing and severing operation of the packaging bag.

[0086] Furthermore, in other embodiments of the present application, the cutter 41 may be disposed only in the upper cutter shaft 2 or only in the lower cutter shaft 3. The abutment member may also be disposed only on the side of the frame where the cutter 41 is mounted. With this arrangement, when the upper sealing seat 24 abuts against the lower sealing seat 34, the abutment member pushes the pushing seat 42, causing the cutter 41 to protrude from the upper sealing seat 24 or the lower sealing seat 34. Similarly, the packages inspected by the upper sealing seat 24 or the lower sealing seat 34 can be cut, completing the continuous operation of heat-sealing and cutting the packaging bag.

[0087] Reference Figure 1 Furthermore, in order to ensure the accuracy of the mutual adaptation of the upper knife shaft 2 and the lower knife shaft 3, a locking mechanism is also provided between the mutually adapted upper knife shaft 2 and the lower knife shaft 3. The locking mechanism includes a locking groove 25 fixed at both ends of the upper knife shaft 2, and a locking column 35 fixed at both ends of the lower knife shaft 3. The axis of the locking groove 25 and the axis of the locking column 35 are both arranged along the axis direction of the upper knife shaft 2 and the lower knife shaft 3. When the corresponding upper knife shaft 2 and the lower knife shaft 3 are rotated to adapt to each other, that is, when the upper sealing seat 24 and the lower sealing seat 34 conflict with each other during the sealing stroke, the locking column 35 of the lower knife shaft 3 can be inserted into the locking groove 25 of the upper knife shaft 2, thereby realizing the mutual locking of the upper knife shaft 2 and the lower knife shaft 3 during the sealing stroke, avoiding misalignment of the upper sealing seat 24 and the lower sealing seat 34, and ensuring the sealing quality of the packaging bag.

[0088] Furthermore, in order to improve the tightness of the connection between the locking post 35 and the locking groove 25 , an elastic sealing ring is sleeved on the locking post 35 .

[0089] The frame structure 1 is also provided with multiple groups of upper rotating mechanisms and multiple groups of lower rotating mechanisms. Each group of upper rotating mechanisms corresponds to a group of knife shafts. In this embodiment, two groups of upper knife shafts 2 are used. Therefore, two groups of upper rotating mechanisms are also used. Similarly, two groups of lower rotating mechanisms are also used in this embodiment.

[0090] Reference Figure 3 and Figure 6 Specifically, two sets of upper transmission shafts 5 are disposed in the region corresponding to the upper sealing track groove 14 within the frame structure 1, and two sets of lower transmission shafts 6 are disposed in the region corresponding to the lower sealing track groove 15 within the frame structure 1. One end of each of the upper transmission shafts 5 and the lower transmission shafts 6 is rotatably connected to the carrier plate 121, and the other end is rotatably connected to the side plate 12 facing away from the carrier plate 121. It should be noted that the number of upper transmission shafts 5 is the same as the number of upper rotary mechanisms, and the number of lower transmission shafts 6 is the same as the number of lower rotary mechanisms.

[0091] The upper rotary mechanism includes an upper driving sprocket 51 coaxially fixed to the ends of one upper transmission shaft 5, an upper driven sprocket 52 coaxially rotatably connected to the ends of the other upper transmission shaft 5, and an upper transmission chain (not shown) sleeved and meshed with the upper driving sprocket 51 and the upper driven sprocket 52. The rotation trajectory of the upper transmission chain coincides with the upper sealing rotation trajectory. In addition, the upper driving sprockets 51 of the two upper rotary mechanisms are respectively sleeved on the two upper transmission shafts 5, ensuring that the two upper transmission shafts 5 can drive the transmission chains of the two upper rotary mechanisms to rotate separately.

[0092] Furthermore, the chains of the two sets of upper slewing mechanisms are symmetrically arranged in the middle of the length direction of the above transmission shaft 5 to ensure that the upper transmission chains arranged oppositely at both ends of the upper transmission shaft 5 are two upper transmission chains of the same upper slewing mechanism.

[0093] Both ends of the first upper cutter shaft 21 are fixed to two upper transmission chains of one set of upper rotary mechanisms, and both ends of the second upper cutter shaft 22 are fixed to two upper transmission chains of another set of upper rotary mechanisms.

[0094] Thus, when the first upper transmission shaft 5 rotates synchronously with the second upper transmission shaft 5, the two upper rotary mechanisms can drive the first upper cutter shaft 21 and the second upper cutter shaft 22 to rotate synchronously along the upper sealing rotation trajectory, while maintaining a constant distance between the first upper cutter shaft 21 and the second upper cutter shaft 22. Furthermore, when the first upper transmission shaft 5 rotates at a variable speed relative to the second upper transmission shaft 5, the two upper rotary mechanisms can drive the first upper cutter shaft 21 and the second upper cutter shaft 22 to rotate at a variable speed along the upper sealing rotation trajectory, thereby adjusting the distance between the first upper cutter shaft 21 and the second upper cutter shaft 22 to meet different sealing requirements.

[0095] The lower rotary mechanism includes a lower driving sprocket 61 coaxially fixed to each end of a lower transmission shaft 6, a lower driven sprocket 62 coaxially rotatably connected to each end of another lower transmission shaft 6, and a lower transmission chain (not shown) sleeved and meshed with the lower driving sprocket 61 and the lower driven sprocket 62. The rotation trajectory of the lower transmission chain coincides with the rotation trajectory of the lower sealing mechanism. Furthermore, the lower driving sprockets 61 of the two lower rotary mechanisms are sleeved onto the two lower transmission shafts 6, respectively, ensuring that the two lower transmission shafts 6 can drive the transmission chains of the two lower rotary mechanisms to rotate separately.

[0096] Furthermore, the chains of the two groups of lower slewing mechanisms are symmetrically arranged in the middle of the length direction of the lower transmission shaft 6 to ensure that the lower transmission chains arranged oppositely at both ends of the lower transmission shaft 6 are two lower transmission chains of the same lower slewing mechanism.

[0097] Both ends of the first lower cutter shaft 31 are fixed to two lower transmission chains of one set of lower rotary mechanisms, and both ends of the second lower cutter shaft 32 are fixed to two lower transmission chains of another set of lower rotary mechanisms.

[0098] Thus, when the two lower transmission shafts 6 rotate synchronously, the two lower rotary mechanisms can drive the first lower blade shaft 31 and the second lower blade shaft 32 to rotate synchronously along the lower sealing rotation trajectory, while maintaining a constant distance between the first lower blade shaft 31 and the second lower blade shaft 32. Furthermore, when the two lower transmission shafts 6 rotate at variable speeds, the two lower rotary mechanisms can drive the first lower blade shaft 31 and the second lower blade shaft 32 to rotate at variable speeds along the lower sealing rotation trajectory, thereby adjusting the distance between the first lower blade shaft 31 and the second lower blade shaft 32 to meet different sealing requirements.

[0099] Furthermore, to ensure that the corresponding upper and lower blade shafts 2 and 3 can move synchronously, a synchronous rotation mechanism is also provided. In this embodiment, two sets of upper transmission shafts 5 and lower transmission shafts 6 are provided, and thus two sets of synchronous transmission mechanisms are also provided, each set of synchronous rotation mechanisms is provided between the corresponding upper transmission shaft 5 and lower transmission shaft 6. For ease of description, the two lower transmission shafts 6 are respectively named as the first lower transmission shaft 6 and the second lower transmission shaft 6, and similarly, the upper transmission shaft 5 is respectively named as the first upper transmission shaft 5 and the second upper transmission shaft 5.

[0100] One end of the first lower transmission shaft 6 extends beyond the side plate 12 and is coaxially secured with a first drive gear 63. A first servo motor is also secured to the side plate 12 at a position corresponding to the first lower transmission shaft 6, driving the rotation of the first lower transmission shaft 6. One end of the first upper transmission shaft 5 extends beyond the side plate 12 and is coaxially secured with a first driven gear 53. Two intermeshing first reversing gears 16 are rotatably connected to the side plate 12. The two first reversing gears 16 are arranged vertically, with their facing away sides meshing with the first drive gear 63 and the first driven gear 53, respectively.

[0101] In this way, the first lower transmission shaft 6 rotates, driving the first drive gear 63 to rotate, and the first driven gear 53 is driven to rotate through the reversing engagement of the two first reversing gears 16, which can drive the first upper transmission shaft 5 to rotate synchronously in the opposite direction, and then drive the first upper knife shaft 21 and the first lower knife shaft 31 to enter the sealing stroke synchronously, so as to achieve the sealing of the package.

[0102] One end of the second lower transmission shaft 6 extends beyond the side plate 12 and is coaxially secured with a second drive gear 64. A second servo motor is also secured to the side plate 12 at a position corresponding to the second lower transmission shaft 6, driving the rotation of the second lower transmission shaft 6. One end of the second upper transmission shaft 5 extends beyond the side plate 12 and is coaxially secured with a second driven gear 54. Two intermeshing second reversing gears 17 are rotatably connected to the side plate 12. The two second reversing gears 17 are vertically arranged, with their facing away sides meshing with the second drive gear 64 and the second driven gear 54, respectively.

[0103] In this way, the second lower transmission shaft 6 rotates, driving the second drive gear 64 to rotate, and the second driven gear 54 is driven to rotate through the reversing engagement of the two second reversing gears 17, which can drive the second upper transmission shaft 5 to rotate synchronously in the opposite direction, and then drive the second upper knife shaft 22 and the second lower knife shaft 32 to enter the sealing stroke synchronously, so as to achieve the sealing of the package.

[0104] Furthermore, to facilitate the transportation of packaging, multiple support rods are fixed along the trajectory of the upper transmission chains or the lower transmission chains between a group of upper transmission chains located on the inner side of the upper transmission shaft 5 and a group of lower transmission chains located on the inner side of the lower transmission shaft 6, so as to realize the transportation of the packaging bags to be heat-sealed.

[0105] Furthermore, in order to adjust the processing height, a base 7 is provided on the lower side of the frame structure 1. A lead screw 18 is also vertically fixed to the lower side of the frame structure 1. The lead screw 18 vertically penetrates the base 7 and slides vertically with the base 7. A worm gear 71 is coaxially connected to the position corresponding to the lead screw 18 in the base 7. A threaded hole is provided at the axis position of the worm gear 71 for adapting to the lead screw 18. A horizontally arranged drive shaft 72 is also rotatably connected to the base 7. A worm 73 is coaxially fixed on the drive shaft 72, and the worm 73 is engaged with the worm gear 71. Rotating the worm 73 can drive the worm gear 71 to rotate, thereby driving the lead screw 18 to move vertically, and then promoting the vertical movement of the frame structure 1 to achieve adjustment of different processing heights.

[0106] To facilitate the rotation of the drive shaft 72, one end of the drive shaft 72 can also extend out of one side of the base 7 and fix a hand wheel 74. So that the operator can drive the drive shaft 72 to rotate through the hand wheel 74.

[0107] The implementation principle of a transverse sealing packaging device in an embodiment of the present application is: during operation, the first lower transmission shaft 6 rotates, driving the first drive gear 63 to rotate, and the first driven gear 53 is driven to rotate through the reversing engagement of the two first reversing gears 16, which can drive the first upper transmission shaft 5 to rotate synchronously in the opposite direction, and then drive the first upper knife shaft 21 and the first lower knife shaft 31 to rotate synchronously, so that a corresponding set of upper sealing seats 24 and lower sealing seats 34 enter the sealing stroke, which is used to achieve sealing of the package.

[0108] The second lower transmission shaft 6 rotates, driving the second drive gear 64 to rotate, and the second driven gear 54 is driven to rotate through the reversing engagement of the two second reversing gears 17, which can drive the second upper transmission shaft 5 to rotate synchronously in the opposite direction, and then drive the second upper knife shaft 22 and the second lower knife shaft 32 to rotate synchronously, so that the corresponding other set of upper sealing seats 24 and lower sealing seats 34 enter the sealing stroke, which is used to achieve sealing of the package.

[0109] When it is necessary to adjust the distance between adjacent sealing parts on the package, the speed difference is formed by changing the relative rotation speed of the first lower transmission shaft 6 and the second lower transmission shaft 6, so as to change the distance between the first lower blade shaft 31 and the second lower blade shaft 32. At the same time, the distance between the first upper blade shaft 21 and the second upper blade shaft 22 is adjusted synchronously to achieve the purpose of adjusting the distance between multiple groups of upper sealing seats 24 and synchronously adjusting the distance between multiple groups of lower sealing seats 34, thereby achieving the adjustment of the distance between adjacent sealing openings on the package, thereby meeting different sealing requirements of the package.

[0110] In addition, when the upper sealing seat 24 and the lower sealing seat 34 rotate to the discharge side of the sealing stroke, the resistance member can resist and push the pushing column of the pushing seat 42, thereby pushing the pushing seat 42 toward the corresponding upper knife shaft 2 or lower knife shaft 3, and then making the cutter 41 protrude from the yield groove 4 of the upper sealing seat 24 and the lower sealing seat 34, thereby completing the cutting of the heat-sealed area of ​​the packaging bag, and then completing the continuous operation of heat sealing and cutting the packaging bag.

[0111] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application are hereby included.

Claims

1. A transverse sealing packaging device, characterized in that: include: Upper sealing rotation track; Lower sealing rotation track; Multiple groups of upper sealing seats (24) rotate along the upper sealing rotation track, and the distance between each group of upper sealing seats (24) can be relatively adjusted; multiple groups of lower sealing seats (34) are respectively provided corresponding to each group of upper sealing seats (24), and each group of lower sealing seats (34) rotates along the lower sealing rotation track, and the distance between each group of lower sealing seats (34) can be relatively adjusted; The corresponding upper sealing seat (24) and lower sealing seat (34) rotate synchronously and can conflict with each other to achieve sealing of the package; Multiple groups of upper rotary mechanisms rotate on the upper sealing rotary track respectively, and each group of upper sealing seats (24) is fixed to one group of upper rotary mechanisms respectively; multiple groups of lower rotary mechanisms are arranged corresponding to the multiple groups of upper rotary mechanisms, and rotate on the lower sealing rotary track respectively, and each group of lower sealing seats (34) is fixed to one group of lower rotary mechanisms respectively; Multiple sets of synchronous transmission mechanisms are respectively arranged between the corresponding upper rotary mechanism and the lower rotary mechanism, and are used to drive the corresponding upper rotary mechanism and the lower rotary mechanism to move synchronously; Multiple groups of upper knife shafts (2) rotate along the upper sealing rotation trajectory, and the distance between each group of upper knife shafts (2) can be relatively adjusted, and each group of upper sealing seats (24) is respectively fixed to each group of upper knife shafts (2); Multiple groups of lower knife shafts (3) are respectively arranged corresponding to the groups of upper knife shafts (2), and each group of lower knife shafts (3) rotates along the lower sealing rotation trajectory. The distance between each group of lower knife shafts (3) can be relatively adjusted, and each group of lower sealing seats (34) is respectively fixed to each group of lower knife shafts (3); Multiple groups of upper transmission shafts (5) are arranged in the upper sealing rotation track and are used to drive each group of upper rotation mechanisms to rotate; A plurality of lower transmission shafts (6) are provided corresponding to the upper transmission shafts (5), are arranged in the lower sealing rotation track, and are used to drive the movement of each lower rotation mechanism.

2. A transverse sealing packaging device according to claim 1, characterized in that: The adjacent sides of the upper sealing track and the lower sealing track form a sealing stroke, and the sealing stroke is a straight conveying section.

3. A transverse sealing packaging device according to claim 1, characterized in that: Also includes: The cutter (41) is movably arranged in the upper sealing seat (24) and / or the lower sealing seat (34). When the upper sealing seat (24) and the lower sealing seat (34) come into contact with each other, the cutter (41) can protrude from the upper sealing seat (24) and / or the lower sealing seat (34) to cut off the sealed portion of the package.

4. A transverse sealing packaging device according to claim 1, characterized in that: Also includes: A cutter (41) is movably disposed in the upper sealing seat (24) and / or the lower sealing seat (34); A push seat (42) is arranged on the side of the corresponding upper knife shaft (2) and / or lower knife shaft (3) away from the sealing seat, is fixed to the cutter (41), and is used to drive the cutter (41) to move; a push spring (43) fixed between the push seat (42) and the corresponding upper knife shaft (2) and / or lower knife shaft (3), and used to push the push seat (42) to move away from the corresponding upper knife shaft (2) and / or lower knife shaft (3), so as to keep the cutter (41) retracted into the upper sealing seat (24) and / or the lower sealing seat (34); The resistance member is arranged at a corresponding position of the upper sealing rotation track and / or the lower sealing rotation track. When the corresponding upper sealing seat (24) and the lower sealing seat (34) are in conflict with each other, the resistance member can push the pushing seat (42) toward the corresponding upper knife shaft (2) and / or lower knife shaft (3) to move, so as to push the cutter (41) to protrude from the upper sealing seat (24) and / or the lower sealing seat (34) for cutting the sealed package.

5. A transverse sealing packaging device according to claim 1, characterized in that: The upper slewing mechanism includes: An upper driving sprocket (51) is coaxially fixed to an upper transmission shaft (5), and the upper driving sprockets (51) of each upper rotary mechanism are respectively fixed to different upper transmission shafts (5); The upper driven sprockets (52) are coaxially connected to the other upper transmission shafts (5); An upper transmission chain is sleeved on an upper driving sprocket (51) and a plurality of upper driven sprockets (52), and each upper sealing seat (24) rotates along with each upper transmission chain; The lower slewing mechanism includes: A lower driving sprocket (61) is coaxially fixed to a lower transmission shaft (6), and the lower driving sprockets (61) of each lower rotary mechanism are respectively fixed to different lower transmission shafts (6); Lower driven sprockets (62) are coaxially connected to the lower transmission shafts (6); The lower transmission chain is sleeved on the lower driving sprocket (61) and a plurality of lower driven sprockets (62), and each of the lower sealing seats (34) rotates along with each of the lower transmission chains.

6. A transverse sealing packaging device according to claim 1, characterized in that: Also includes: A frame structure (1), wherein the upper sealing rotary rail and the lower sealing track are both arranged in the frame structure (1); A base (7) is provided on the lower side of the frame structure (1) and is used to support the frame structure (1); The lifting component is arranged between the base (7) and the frame structure (1) and is used to push the frame structure (1) to move vertically.

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