Packing machine pressing mechanism and packing machine

Abstract

The utility model discloses a bag sealing machine pressing mechanism and a bag sealing machine. The bag sealing machine pressing mechanism comprises a connecting assembly, a pressing assembly and an adjusting assembly. The connecting assembly is connected to a supporting platform of the bag sealing machine, the pressing assembly is arranged on the connecting assembly in a sliding mode, and the adjusting assembly is arranged between the connecting assembly and the pressing assembly. The adjusting assembly comprises an adjusting rod and a locking structure, the adjusting rod is connected to the pressing assembly and can adjust the connecting position relative to the connecting assembly along with sliding of the pressing assembly, and a matching structure is arranged between the locking structure and the adjusting rod. The locking structure locks the adjusting rod to a preset connecting position through the matching structure. The bag sealing machine pressing mechanism and the bag sealing machine with the pressing mechanism are convenient to use, and the bag sealing efficiency is improved; and in addition, the use convenience and applicability are improved, and the experience feeling of packaging operation is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a pressing mechanism of a sealing machine and a sealing machine. Background Art

[0002] Currently, online shopping is prevalent, and the related logistics and express delivery industries are also booming. Before online shopping items are transported by logistics or express delivery, they need to be boxed and packaged. The traditional box packaging method is to manually seal each packaging box with tape one by one. This method is inefficient and difficult to meet the fast-paced needs of the industry.

[0003] Therefore, some sealing machines for boxing and packaging items have emerged. Such equipment can achieve automatic or semi-automatic sealing, thus saving labor and improving efficiency. However, in order to make the sealing machine adapt to different packaging box sizes, a relatively large space often needs to be reserved on the packaging platform. When sealing, in order to fix the packaging box, it is necessary to manually press and fix the packaging box, which is inconvenient to use, has low efficiency, and is not conducive to liberating labor. Summary of the Utility Model

[0004] In view of this, the utility model provides a pressing mechanism for a sealing machine to avoid the above problems and a packaging machine with the pressing mechanism.

[0005] The pressing mechanism of the sealing machine provided by the utility model is used to press the packaging box during sealing, and includes:

[0006] A connecting component connected to the support platform of the sealing machine;

[0007] A pressing component slidably arranged on the connecting component for pressing the packaging box; and,

[0008] An adjusting component arranged between the connecting component and the pressing component. The adjusting component includes an adjusting rod and a locking structure. The adjusting rod is connected to the pressing component and can adjust its connection position relative to the connecting component as the pressing component slides. A matching structure is arranged between the locking structure and the adjusting rod, and the locking structure locks the adjusting rod to a predetermined connection position through the matching structure.

[0009] Further, the matching structure includes an engaging portion arranged on the locking structure and a rack portion arranged on the adjusting rod, and the engaging portion engages with the rack portion to lock the adjusting rod.

[0010] Further, the locking structure is movably arranged on the connecting component. The locking structure moves in a predetermined direction to lock the adjusting rod and moves in the opposite direction to the locking structure to release the locking of the adjusting rod.

[0011] Further, the locking structure includes a latch movably disposed on the connection assembly. The latch includes a pivoting portion and an operating portion. The pivoting portion is located at one end of the latch and is rotatably disposed on the connection assembly. The operating portion is located at the end of the latch opposite to the pivoting portion.

[0012] Further, the locking structure includes an elastic member acting on the latch. In the natural state, the elastic force of the elastic member keeps the latch in a locked state with respect to the adjusting rod.

[0013] Further, the connection assembly includes a first support portion, a second support portion, and a guiding portion disposed between the first support portion and the second support portion. The pressing assembly is slidably engaged with the connection assembly through the guiding portion, and the locking structure is disposed on the first support portion.

[0014] Further, the guiding portion includes a guiding block and a guide sleeve. The guiding block is fixedly disposed relative to the support platform. The guide sleeve is slidably disposed through the guiding block. The two ends of the guide sleeve are respectively fixedly connected to the first support portion and the second support portion. The first support portion, the second support portion, and the guide sleeve form a moving whole and can move up and down under the guiding action of the guiding block.

[0015] Further, the pressing assembly includes a pressing portion and a rod portion connected to the pressing portion. One end of the rod portion is connected to the pressing portion, and the other end is slidably disposed through the guide sleeve. The pressing portion is used for pressing the packaging box.

[0016] The packaging machine provided by the present utility model includes:

[0017] A support platform;

[0018] A tape winding mechanism movably disposed relative to the support platform for winding and pasting a tape on a packaging box;

[0019] The packaging machine pressing mechanism as described above; and,

[0020] A lifting mechanism, the lifting mechanism cooperating with the tape winding mechanism to drive the packaging machine pressing mechanism to lift so as to press the packaging box to be sealed.

[0021] Further, the tape winding mechanism includes a fixing member, a moving member, and a tape roll mounting portion. The fixing member is disposed relative to the support platform. The moving member is movably connected to the fixing member. The tape roll mounting portion is disposed on the moving member, and the moving member can drive the tape roll mounting portion to move.

[0022] Further, the lifting mechanism includes a convex portion protruding from the outer periphery of the moving member, and the convex portion is spaced apart from the tape roll mounting portion by a predetermined central angle, so that when the tape winding mechanism moves to a predetermined position to complete the packaging of the packing box, the convex portion pushes the pressing assembly upward as a whole.

[0023] Further, the outer edge of the front end of the convex portion gradually approaches the rotation center along the rotation direction of the moving member, and the outer edge of the rear end gradually moves away from the rotation center along the rotation direction of the moving member; and / or

[0024] The lifting mechanism includes a roller member, and when the tape winding mechanism moves, the roller member can move along the outer edge of the convex portion to drive the pressing assembly to move.

[0025] The pressing mechanism of the packaging machine and the packaging machine having the pressing mechanism of the present invention realize the automatic pressing of the packaging box during the packaging process by setting the pressing assembly, which is not only convenient to use, liberates manpower, and improves the packaging efficiency; in addition, an adjusting assembly is provided, and the connection position of the pressing assembly is adjusted by the cooperation of the locking structure and the adjusting rod, so that the pressing assembly can be applied to packaging boxes of different sizes, improving the convenience and applicability of use, and also improving the experience of the packaging operation. Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of a packaging machine according to an embodiment of the present invention;

[0027] Figure 2 is Figure 1 another perspective view of the packaging machine;

[0028] Figure 3 is Figure 1 a partial structural disassembly diagram of the packaging machine;

[0029] Figure 4 is Figure 1 a partial structural diagram of the packaging machine;

[0030] Figure 5 is Figure 1 a partial structural disassembly diagram of the adjusting assembly of the packaging machine;

[0031] Figure 6 is a partial structural disassembly diagram of the adjusting assembly of the packaging machine according to another embodiment of the present invention;

[0032] Figure 7 is a partial structural disassembly diagram of the adjusting assembly of the packaging machine according to still another embodiment of the present invention;

[0033] Figure 8 is a three-dimensional structural schematic diagram of the packaging machine according to still another embodiment of the present invention;

[0034] Figure 9 is Figure 8 An enlarged partial structure view of a bag sealer;

[0035] Figure 10 is Figure 9 A sectional view taken along I-I.

[0036] Explanation of reference numerals:

[0037] 100, bag sealer;

[0038] 10, support platform; 11, base; 11a, first base body; 11b, second base body; 111, support surface; 111a, first support surface; 111b, second support surface; 111c, gap; 12, bracket; 12a, opening; 121, bottom frame; 122, top frame; 123, side frame;

[0039] 20, tape winding mechanism; 21, fixing member; 22, moving member; 22a, tooth portion; 221, outer ring piece; 223, toothed ring piece; 23, tape roll mounting portion;

[0040] 30, pressing mechanism; 31, connecting assembly; 311, first support portion; 311a, second connecting column; 312, second support portion; 313, guiding portion; 314, adjusting rod sleeve; 3131, guiding block; 3132, guide sleeve; 32, pressing assembly; 321, pressing portion; 322, rod portion; 33, adjusting assembly; 331, adjusting rod; 331a, rack portion; 331a', spiral rib; 331a", adjusting hole; 332, locking structure; 332a, engaging portion; 332a', spiral card slot; 332a", limit pin; 3321, lock; 3321a, pivoting portion; 3321b, operating portion; 3321c, pivoting hole; 3321d, pivot; 3321e, first connecting column; 3322, elastic member;

[0041] 40, lifting mechanism; 41, convex portion; 42, roller member; 43, driving motor; 44, eccentric wheel; 45, elastic auxiliary pressing structure. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0044] Please refer to Figures 1 - 5 , this utility model provides a sealing machine 100 capable of sealing a packaging box. The sealing machine 100 includes a support platform 10, a tape winding mechanism 20, a pressing mechanism 30, and a lifting mechanism 40. The support platform 10 is used to support the tape winding mechanism 20 and the pressing mechanism 30. The tape winding mechanism 20 is movably arranged relative to the support platform 10 and is used to wind tape around a packaging box (not shown in the figure). The pressing mechanism 30 is movably arranged on the support platform 10 and is used to press the packaging box to be sealed to prevent the packaging box from moving during the tape winding process and affecting the sealing effect. The lifting mechanism 40 is used to drive the pressing mechanism 30 to lift and lower to press the packaging box to be sealed.

[0045] The support platform 10 includes a base 11 and a bracket 12 arranged on the base 11. The base 11 provides bottom support for the sealing machine 100. The base 11 includes a support surface 111 for supporting the packaging box during the sealing process. In the illustrated embodiment, the support surface 111 includes a first support surface 111a and a second support surface 111b, and a gap 111c for the tape to pass through is provided between the first support surface 111a and the second support surface 111b. More specifically, the base 11 includes a first body 11a and a second body 11b. The first body 11a and the second body 11b are arranged at intervals, and the gap 111c is located between the first body 11a and the second body 11b. The first body 11a is generally in a table shape, and the first support surface 111a is the upper surface of the first body 11a. The second body 11b is generally in a portal frame shape, and the second support surface 111b is the upper surface of the second body 11b. It can be understood that in other ways, the base 11 is not limited to the above shapes as long as it can support the packaging box. The first body 11a and the second body 11b are also not limited to the specific structural forms shown in the figure as long as the two can cooperate to provide a space for the tape to pass through. Other implementation manners will not be elaborated in detail here.

[0046] The bracket 12 is fixedly arranged relative to the base 11 and extends upward away from the supporting surface 111 by a predetermined distance. An opening 12a is formed by the cooperation of the bracket 12 and the base 11. When packing, the packaging box is placed on the supporting surface 111 of the base 11 through the opening 12a. Preferably, the opening 12a has a suitable size so that different packing boxes can be placed on the supporting surface 111 of the base 11 through the opening 12a. In the illustrated embodiment, the bracket 12 is generally a square frame with the opening 12a formed in the middle, and most of the opening 12a is located above the supporting surface 111. Specifically, the bracket 12 includes a bottom frame 121, a top frame 122 and two side frames 123. The two ends of the side frame 123 are respectively connected to the bottom frame 121 and the top frame 122. The bottom frame 121 is connected to the base 11, specifically to the first seat body 11a. The side frame 123 extends away from the supporting surface 111 and supports the top frame 122 at a predetermined height relative to the supporting surface 111. It can be understood that in other embodiments, the bracket 12 is not limited to the above shape and structure, and those skilled in the art can make appropriate changes while ensuring its function.

[0047] The tape winding mechanism 20 is connected to the bracket 12 and is used for unwinding the tape roll and winding the tape on the packaging box. The tape winding mechanism 20 includes a fixing member 21, a moving member 22 and a tape roll mounting portion 23. The fixing member 21 is fixedly arranged relative to the bracket 12. The moving member 22 is movably connected to the fixing member 21. The tape roll mounting portion 23 is arranged on the moving member 22. The moving member 22 can drive the tape roll mounting portion 23 to move. When the moving member 22 moves relative to the fixing member, it drives the tape to unwind around the packing box and pastes the unwound tape on the packaging box.

[0048] In the illustrated embodiment, the fixing member 21 is an annular bearing structure fixed to the bracket 12, and the inner hole of the annular fixing member 21 is arranged corresponding to the opening 12a. Specifically, the inner hole is a circular hole. The moving member 22 is generally annular corresponding to the outer contour of the fixing member 21. The moving member 22 is sleeved on the fixing member 21, and the moving member 22 can rotate relative to the fixing member 21. The movement of the moving member 22 relative to the fixing member 21 can be driven by a motor. In this embodiment, a tooth portion 22a is arranged on the outer edge of the moving member 22, and the tooth portion 22a can be engaged with a gear driven by the motor to move. It can be understood that the driving mode of the moving member 22 is not limited to the above mode, and any other suitable mode can be adopted, for example, a manual hand-cranking mode or a synchronous belt mode can be adopted for driving, etc.

[0049] In this embodiment, the moving member 22 includes an outer ring piece 221 and a toothed ring piece 223 connected to the outer ring piece 221, and the tooth portion 22a is formed on the periphery of the toothed ring piece 223.

[0050] The pressing mechanism 30 includes a connecting component 31, a pressing component 32, and an adjusting component 33. The pressing component 32 and the adjusting component 33 are connected to the bracket 12 through the connecting component 31. The adjusting component 33 is used to adjust the length of the pressing component 32 to adapt to packaging boxes of different heights, and the pressing component 32 is used to press the packaging box to be sealed.

[0051] The connecting component 31 includes a first support portion 311, a second support portion 312, and a guiding portion 313 disposed between the first support portion 311 and the second support portion 312. In this embodiment, the first support portion 311 and the second support portion 312 are plate-shaped. The guiding portion 313 includes a guiding block 3131 and a guide sleeve 3132. The guiding block 3131 is fixedly arranged relative to the bracket 12, and the guide sleeve 3132 is slidably inserted through the guiding block 3131. Two ends of the guide sleeve 3132 are respectively fixedly connected to the first support portion 311 and the second support portion 312. The first support portion 311, the second support portion 312, and the guide sleeve 3132 form a moving whole and can make a lifting motion under the guiding action of the guiding block 3131.

[0052] The pressing component 32 includes a pressing portion 321 and a rod portion 322 connected to the pressing portion 321. One end of the rod portion 322 is connected to the pressing portion 321, and the other end slidably passes through the guide sleeve 3132. The relative sliding of the rod portion 322 with respect to the guide sleeve 3132 can adjust the height of the pressing portion 321 relative to the supporting surface 111 to adapt to packaging boxes of different height dimensions. In this embodiment, the pressing portion 321 is plate-shaped, its upper surface is connected to the rod portion 322, and its lower surface faces the supporting surface 111. The lower surface of the pressing portion 321 is used to press the packaging box. It can be understood that in other embodiments, the pressing portion 321 can also be block-shaped, strip-shaped, curved strip-shaped, arched, etc., as long as it can press the packaging box. In addition, a soft material portion can be provided on the bottom surface of the pressing portion 321, and the soft material portion can make the pressing portion 321 fit the packaging box better, with a better pressing effect, and avoid damaging the packaging box due to hard contact.

[0053] In the illustrated embodiment, the number of the rod portions 322 is two, and the two rod portions 322 are spaced apart to increase the stability of the pressing assembly 32. The rod portions 322 are cylindrical long rods, and the rod portions 322 are slidably engaged with the guide sleeves 3132. By adjusting the length of the rod portions 322 inserted into the guide sleeves 3132, the height of the pressing assembly 32 relative to the support surface 111 is adjusted to adapt to packaging boxes of different height dimensions. It can be understood that in other embodiments, the rod portions 322 may be prisms or any other suitable shapes, and the number is not limited to two, which will not be elaborated one by one here.

[0054] The adjusting assembly 33 includes an adjusting rod 331 and a locking structure 332. The locking structure 332 cooperates with the adjusting rod 331 to adjust the height of the pressing assembly 32 relative to the support surface 111. After being adjusted to a predetermined height, the locking structure 332 locks the adjusting rod 331, and the pressing assembly 32 maintains the predetermined height relative to the support surface 111.

[0055] Specifically, the adjusting rod 331 is in a long strip shape, one end is fixedly connected to the pressing portion, and the other end extends through the first support portion 311 and the second support portion 312. A rack portion 331a extending along the length direction of the adjusting rod 331 is provided on the adjusting rod 331. Corresponding to the adjusting rod 331, the connecting assembly 31 further includes an adjusting rod sleeve 314. The adjusting rod sleeve 314 is disposed between the first support portion 311 and the second support portion 312, and the adjusting rod 331 slidably passes through the adjusting rod sleeve 314. The adjusting rod sleeve 314 can guide the adjusting rod 331 and can protect the adjusting rod 331 from being damaged at the same time.

[0056] The locking structure 332 is disposed on the moving whole formed by the first support portion 311, the second support portion 312 and the guide sleeve 3132, and can lock the adjusting rod 331 or release the locking of the adjusting rod 331. The locking structure 332 includes a lock catch 3321 movably disposed on the first support portion 311. A engaging portion 332a capable of engaging with the rack portion 331a on the adjusting rod 331 is provided on the surface of the lock catch 3321. In this embodiment, the engaging portion 332a is a tooth-shaped structure capable of engaging with the rack portion 331a in a concave-convex manner. When the locking structure 332 moves along a predetermined direction, the engaging portion 332a can cooperate with the rack portion 331a to lock the adjusting rod 331. When the locking structure 332 moves in a direction opposite to the predetermined direction, the engaging portion 332a can disengage from the rack portion 331a to release the locking of the adjusting rod 331.

[0057] In the illustrated embodiment, the latch 3321 includes a pivot portion 3321a and an operation portion 3321b. The pivot portion 3321a is located at one end of the latch 3321 and is rotatably disposed on the first support portion 311. The operation portion 3321b is located at the end of the latch 3321 opposite to the pivot portion 3321a. The engaging portion 332a is disposed between the pivot portion 3321a and the operation portion 3321b. A pivot hole 3321c is formed in the pivot portion 3321a, and a pivot shaft 3321d is inserted into the pivot hole 3321c. One end of the pivot shaft 3321d passes through the pivot hole 3321c and is fixedly connected to the first support portion 311. Thus, operating the operation portion 3321b can cause the latch 3321 to rotate about the pivot shaft 3321d. It can be understood that the pivot portion 3321a can also be rotatably connected to the first support portion 311 in any other suitable manner, for example, by using a hinge, etc.; in addition, the pivot shaft 3321d can be integrally formed on the first support portion 311; or, a pivot shaft is integrally formed on the pivot portion 3321a, and the first support portion 311 is provided with a bushing that rotatably cooperates with the pivot shaft, etc.

[0058] The operation portion 3321b is generally in a sheet shape, and the sheet structure is beneficial to saving materials and applying an operating force. It can be understood that the operation portion 3321b can be manually operated or can be operated by a driving mechanism. If it is manually operated, the operation portion 3321b can be in a shape suitable for cooperating with a human hand, for example, a recessed portion (not shown in the figure) that is convenient for a finger to apply force and avoids finger slipping. An anti-slip structure can also be provided on the surface of the recessed portion to further play an anti-slip role.

[0059] In addition, the locking structure 332 further includes an elastic member 3322 acting on the latch 3321. In the natural state, the elastic force of the elastic member 3322 keeps the latch 3321 locked to the adjusting rod 331. Only when an external force overcomes the elastic force of the elastic member 3322 to rotate the latch 3321 can the locking of the adjusting rod 331 be released. In this way, it can be avoided that the locking structure 332 accidentally releases the locking of the adjusting rod 331, affecting the use effect. Specifically, the elastic member 3322 is a tension spring. One end of the elastic member 3322 is connected to the latch 3321, and the other end is connected to the first support portion 311. A first connecting column 3321e is provided at a position of the latch 3321 close to the operation portion 3321b, and a second connecting column 311a is provided on the first support portion 311. Two ends of the elastic member 3322 are respectively connected to the first connecting column 3321e and the second connecting column 311a. It can be understood that the first connecting column 3321e and the second connecting column 311a can be appropriately changed according to actual needs, as long as they can connect and fix two ends of the elastic member 3322.

[0060] It can be understood that in other embodiments, the structure and installation position of the elastic member 3322 are not limited to the illustrated actual manner, as long as the above functions can be achieved. For example, the elastic member 3322 can be a torsion spring, arranged on the pivot 3321d, and two ends respectively abut against the latch 3321 and the first support portion 311.

[0061] It can be understood that the adjustment and cooperation between the locking structure 332 and the adjusting rod 331 are not limited to the way of the rack portion 331a and the engaging portion 332a. Please refer to Figure 6 , in another embodiment, a spiral rib 331a' can be provided on the adjusting rod 331, and a spiral groove 332a' cooperating with the spiral rib 331a' is provided on the latch 3321; please refer to Figure 7 , in yet another embodiment, a plurality of adjustment holes 331a” arranged along the length direction can be provided on the adjusting rod 331, and a limit pin 332a” capable of being inserted and cooperating with the adjustment holes 331a” is provided on the latch 3321.

[0062] It can be understood that in other embodiments, the adjusting rod 331 can also be integrated with the rod portion 322. For example, a similar rack portion is provided on the rod portion 322, and a similar locking structure is matched with the rod portion 322, and the adjustment and limit of the pressing assembly 32 can also be achieved. Details are not described one by one here.

[0063] The lifting mechanism 40 cooperates with the tape winding mechanism 20. When the tape winding mechanism 20 moves to a predetermined position, the pressing assembly 32 is driven upward by a predetermined distance, so that the pressing portion 321 disengages from the packaged box, facilitating the removal of the packaged box and the replacement of the box to be packaged, improving the packaging efficiency. After replacing the box, the tape winding mechanism 20 continues to move, and the pressing assembly 32 descends and presses the replaced box.

[0064] In one embodiment, the lifting mechanism 40 includes a convex portion 41 protruding from the outer peripheral edge of the moving member 22. The convex portion 41 is spaced from the tape roll mounting portion 23 by a predetermined central angle, such that when the tape winding mechanism 20 moves to a predetermined position to complete the packaging of the packing box, the convex portion 41 jacks up the entire pressing assembly 32. The outer edge of the convex portion 41 is in a smooth curve shape, making the movement process of the pressing assembly 32 smooth and improving the usage effect. In this embodiment, the outer edge of the convex portion 41 gradually approaches the rotation center along the rotation direction of the moving member 22, presenting a generally pointed front end and a protruding rear end in a sharp-angle shape. Of course, in other embodiments, the shape of the convex portion 41 can be appropriately changed. For example, the convex portion 41 has a shape with pointed front and rear ends and a convex middle portion. Therefore, the outer edge of the front portion of the convex portion 41 gradually approaches the rotation center along the rotation direction of the moving member 22, and the outer edge of the rear portion of the convex portion 41 gradually moves away from the rotation center along the rotation direction of the moving member 22. In this way, the downward movement process of the pressing assembly 32 can be made more linear, enabling the pressing assembly 32 to gradually approach and press the box, avoiding sudden descent that may damage the box or the items inside the box.

[0065] In this embodiment, the lifting mechanism 40 further includes a roller member 42 disposed on the pressing mechanism 30. When the tape winding mechanism 20 moves, the roller member 42 can move along the outer edge of the convex portion 41 to drive the pressing assembly 32 to move. Specifically, the roller member 42 is disposed on the side of the second support portion 312 facing the support surface 111. The setting of the roller member 42 can make the movement of the pressing assembly 32 smoother, reduce noise, and in addition, the roller member 42 can reduce the wear of the convex portion 41 and ensure the service life of the device.

[0066] The roller member 42 in the above embodiments cleverly utilizes the cooperation relationship of the mechanical structure to automatically release the box after packaging during the movement of the tape winding mechanism 20, and at the same time automatically presses the replaced box. This not only greatly facilitates the packaging process and improves the packaging efficiency, but also has a simple structure and keeps the overall cost of the device low.

[0067] Please refer to Figures 8 - 10, As an alternative embodiment, the lifting mechanism 40 includes a driving motor 43 and an eccentric wheel 44 that can be driven by the driving motor to rotate. The driving motor 43 is fixedly arranged relative to the bracket 12. The eccentric wheel 44 is connected to the output shaft of the driving motor 43 and is located below the second supporting portion 312. When the eccentric wheel 44 rotates to a predetermined angle, its outer edge can act on the second supporting portion 312 to jack up the entire pressing assembly 32. When the eccentric wheel 44 continues to rotate, the second supporting portion 312 gradually falls back to the position of pressing the packaging box.

[0068] In this embodiment, the driving motor 43 and the tape winding mechanism 20 can cooperate with each other through, but are not limited to, an infrared light sensor (not shown in the figure). When the tape winding mechanism 20 moves to a predetermined position (the position where the packaging is completed), the infrared sensor triggers a control signal, and the driving motor 43 rotates on the control line of the driving signal to realize the automatic lifting of the pressing assembly 32.

[0069] In this embodiment, the lifting mechanism drives the lifting movement of the pressing assembly 32 in the form of a motor, improving the sensitivity and precision of the equipment and having a higher degree of electrification.

[0070] In addition, please refer to Figure 2 further. The lifting mechanism 40 further includes an elastic auxiliary pressing structure 45. The elastic auxiliary pressing structure 45 provides a force for pressing the packaging box to the pressing assembly 32, making the packaging box more stable during the packaging process and improving the packaging effect. Specifically, the elastic auxiliary pressing structure 45 is a spring, one end of which is connected to the second supporting portion 312 and the other end is connected to the bracket 12. When the pressing assembly 32 presses against the packaging box, the elastic auxiliary pressing structure 45 is in a tensioned state, and its elastic tension presses the pressing assembly 32 more tightly against the packaging box. It can be understood that the specific form and installation position of the elastic auxiliary pressing structure can vary according to actual needs and are not limited to the specific embodiment shown in the figure.

[0071] The overall working principle of the packet sealer of the present utility model is as follows: After the packaging box is completely sealed, when the tape winding mechanism 20 continues to rotate, the lifting mechanism 40 cooperates with the tape winding mechanism to drive the pressing assembly 32 to rise, so as to loosen the pressed packaging box. At this time, the packaging box can be taken off from the support surface 111. Then, a new packaging box to be sealed can be placed at the sealing position of the support surface 111. When the tape winding mechanism 20 continues to rotate, the pressing assembly 32 descends to press the packaging box. The tape winding mechanism 20 further rotates, so that the tape roll mounting part 23 drives the tape glue to wind the tape around the packaging box for sealing until the complete sealing of the packaging box is completed. When the tape winding mechanism 20 rotates one week and continues to rotate, the above process is repeated. The above sealing process can be basically automatically completed, which is convenient to use and has a high sealing efficiency.

[0072] During the sealing process, in order to adapt to packaging boxes of different height dimensions, when the size of the packaging box changes, the height of the pressing assembly 32 relative to the support surface 111 can be adjusted through the adjusting assembly 33, so that the packet sealer has a wider applicability. At the same time, the adjusting assembly 33 realizes the adjustment of the pressing assembly 32 through a simple mechanical structure, which is simple and convenient to operate, and makes the packet sealer have a lower production cost.

[0073] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0074] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present utility model, rather than to limit the present utility model. As long as appropriate changes and variations are made to the above embodiments within the scope of the essential spirit of the present utility model, they fall within the scope of protection required by the present utility model.

Claims

1. A pressing mechanism for a sealing machine, which is used to press the packaging box during sealing, and is characterized in that, Comprising: A connecting component, connected to the support platform of the sealing machine; A pressing component, slidably arranged on the connecting component; And, An adjusting component, arranged between the connecting component and the pressing component. The adjusting component includes an adjusting rod and a locking structure. The adjusting rod is connected to the pressing component and can adjust its connection position relative to the connecting component as the pressing component slides. A matching structure is arranged between the locking structure and the adjusting rod, and the locking structure locks the adjusting rod to a predetermined connection position through the matching structure.

2. The pressing mechanism of the packet sealing machine according to claim 1, wherein The matching structure includes an engaging portion arranged on the locking structure and a rack portion arranged on the adjusting rod. The engaging portion engages with the rack portion to lock the adjusting rod.

3. The packet pressing mechanism according to claim 1 or 2, characterized in that, The locking structure is movably arranged on the connecting component. The locking structure moves along a predetermined direction to lock the adjusting rod, and moves in the opposite direction to the locking structure to release the locking of the adjusting rod.

4. The packet pressing mechanism according to claim 3, characterized in that, The locking structure includes a lock that is movably arranged on the connecting component. The lock includes a pivoting portion and an operating portion. The pivoting portion is located at one end of the lock and is rotatably arranged on the connecting component. The operating portion is located at the end of the lock opposite to the pivoting portion.

5. The pressing mechanism of the packet sealer according to claim 4, characterized in that The locking structure includes an elastic member acting on the lock. In the natural state, the elastic force of the elastic member causes the lock to keep locking the adjusting rod.

6. The pressing mechanism of the packet sealing machine according to claim 1, characterized in that The connecting component includes a first support portion, a second support portion, and a guiding portion arranged between the first support portion and the second support portion. The pressing component is slidably matched with the connecting component through the guiding portion. The locking structure is arranged on the first support portion.

7. The pressing mechanism of the packet sealing machine according to claim 6, characterized in that, The guiding portion includes a guiding block and a guide sleeve. The guiding block is fixedly arranged relative to the support platform. The guide sleeve is slidably penetrated through the guiding block. The two ends of the guide sleeve are respectively fixedly connected to the first support portion and the second support portion. The first support portion, the second support portion, and the guide sleeve form a moving whole and can perform a lifting motion under the guiding action of the guiding block.

8. The pressing mechanism of the packet sealing machine according to claim 7, wherein, The pressing component includes a pressing portion and a rod portion connected to the pressing portion. One end of the rod portion is connected to the pressing portion, and the other end slidably passes through the guide sleeve. The pressing portion is used for pressing the packaging box.

9. A packet sealer, characterized in that Comprising: A support platform; A tape winding mechanism, movably arranged relative to the support platform, for winding and pasting the tape on the packaging box; The sealing machine pressing mechanism according to any one of claims 1-8; and, A lifting mechanism, which cooperates with the tape winding mechanism to drive the sealing machine pressing mechanism to lift so as to press the packaging box to be sealed.

10. The packet sealing machine according to claim 9, characterized in that, The tape winding mechanism includes a fixing member, a moving member, and a tape roll mounting portion. The fixing member is arranged relative to the support platform. The moving member is movably connected to the fixing member. The tape roll mounting portion is arranged on the moving member, and the moving member can drive the tape roll mounting portion to move.

11. The packet sealing machine according to claim 10, characterized in that, The lifting mechanism includes a convex portion protruding from the outer peripheral edge of the moving member, and the convex portion is spaced from the tape roll mounting portion by a predetermined central angle, so that when the tape winding mechanism moves to a predetermined position to complete the sealing of the packaging box, the convex portion pushes the pressing assembly upward as a whole.

12. The packet sealing machine according to claim 11, wherein, The outer edge of the front end of the convex portion gradually approaches the rotation center along the rotation direction of the moving member, and the outer edge of the rear end gradually moves away from the rotation center along the rotation direction of the moving member; and / or The lifting mechanism includes a roller member, and when the tape winding mechanism moves, the roller member can move along the outer edge of the convex portion to drive the pressing assembly to move.

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