A sealing mechanism and a multi-station linkage sealing machine with the same

Abstract

This invention discloses a sealing mechanism and a multi-station linkage sealing machine having the same, relating to the field of packaging equipment technology. The sealing mechanism includes a mounting frame, two symmetrically arranged sealing plates located below the mounting frame, and a linkage assembly. A mounting plate is fixed to one side wall of the mounting frame, and two parallel supports are vertically fixed to the mounting plate. The first rotating shaft of the linkage assembly is rotatably connected between the two supports. The movement of the first rotating shaft drives the swing block, the first connecting rod, and the second connecting rod to move, thereby driving the sealing plates to move closer or further apart, thus achieving the sealing action of the packaging bag. This invention also discloses a multi-station linkage sealing machine, including a frame, multiple sealing mechanisms slidably connected to the frame, a first driving mechanism, and a following mechanism. Under the drive of the first driving mechanism and the following mechanism, the multiple sealing mechanisms can operate simultaneously. This invention is applicable to the sealing action of packaging bags of different specifications and improves the sealing efficiency.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and more specifically to a sealing mechanism and a multi-station linkage sealing machine having the same. Background Technology

[0002] Currently, product packaging is an essential process in industrial production. It mainly involves sealing various types of bags, such as plastic bags, paper bags, woven bags, cloth bags, and composite bags.

[0003] In existing technologies, the sealing of products after packaging is mostly done manually, with a low degree of automation. When sealing manually, uneven force may occur, resulting in substandard sealing of the packaging bags and affecting the quality of product packaging. At the same time, manual sealing is inefficient and labor-intensive. With the advancement and development of automation, sealing mechanisms can be used to seal and flatten materials such as films and packaging bags, effectively reducing the labor intensity of manual sealing. However, existing sealing mechanisms have complex structures and cannot adjust the distance between sealing plates according to the thickness of the packaging bag, thus limiting their application.

[0004] Therefore, how to provide a multi-station linkage sealing machine with a simple structure that can be applied to packaging bags of different specifications and improve sealing efficiency is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a sealing mechanism and a multi-station linkage sealing machine having the same, aiming to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sealing mechanism includes a mounting frame, two symmetrically arranged sealing plates located below the mounting frame, and a linkage assembly for driving the two sealing plates to move closer together or apart.

[0008] A mounting plate is fixed to one side wall of the mounting frame, and two parallel brackets are vertically fixed to the mounting plate. The linkage assembly includes a first rotating shaft, a swing block, and a first connecting rod. The first rotating shaft is rotatably connected between the two brackets, the swing block is fixed to the first rotating shaft, one end of the first connecting rod is hinged to the swing block, and the other end is hinged to a connecting block. Symmetrically arranged connecting plates are fixed to both sides of the connecting block. Each connecting plate has a sliding groove. A second rotating shaft is slidably connected between the two sliding grooves. The two ends of the second rotating shaft extend to the outside of the sliding groove, and the two ends of the second rotating shaft are hinged to a second connecting rod. The ends of the second connecting rod away from the connection with the second rotating shaft are rotatably connected to the sealing plate.

[0009] Preferably, in the sealing mechanism described above, each second link includes a first link, a second link, a third link, and a fourth link that are hinged end to end; the second link and the third link are rotatably connected to the second rotating shaft; the end of the first link away from the hinge with the second link and the end of the fourth link away from the hinge with the third link are respectively fixedly connected to a fifth link; the end of the fifth link away from the connection with the first link and the fourth link is rotatably connected to the sealing plate.

[0010] Preferably, in the sealing mechanism described above, a third rotating shaft is connected between the two side walls of the mounting frame. The two ends of the third rotating shaft extend to the outer sides of the two side walls of the mounting frame and are rotatably connected to a connecting rod six. The end of the connecting rod six away from the third rotating shaft is rotatably connected to the sealing plate, and the connecting rod six is ​​located outside the connecting rod five.

[0011] Preferably, in the sealing mechanism described above, a cover is detachably connected to the top of the mounting frame.

[0012] The present invention also discloses a multi-station linkage sealing machine, including a frame, multiple sealing mechanisms arranged side by side and slidably connected on the frame, a first driving mechanism and a following mechanism;

[0013] The bottom wall of the frame is equipped with a slide rail, and the bottom wall of the mounting plate has a groove that is slidably connected to the slide rail;

[0014] The first drive mechanism is installed inside the frame and is connected to the first rotating shaft to drive multiple sets of sealing plates to move closer or apart synchronously.

[0015] A following mechanism is installed inside the frame. The following mechanism includes a timing belt assembly and a second drive mechanism for driving the timing belt assembly to rotate. A pressure plate is fixed on the timing belt assembly. The pressure plate is fixedly connected to the mounting plate located on one side edge. Two adjacent mounting plates are fixedly connected by a linkage plate. The second drive mechanism is used to drive the timing belt assembly to drive the pressure plate to reciprocate, thereby realizing that multiple mounting frames reciprocate synchronously along the length direction of the frame.

[0016] Preferably, in the above-mentioned multi-station linkage sealing machine, the first drive mechanism includes a first motor, a first transmission assembly, a splined shaft, and pulleys; the first motor is installed inside the frame, the input end of the first transmission assembly is fixedly connected to the power output shaft of the first motor, the splined shaft is drivenly connected to the output end of the first transmission assembly, and there are two pulleys, which are respectively fixed to both ends of the splined shaft; the two pulleys are respectively drivenly connected to the first rotating shafts located on both sides through a second transmission assembly; the first rotating shaft located in the middle is drivenly connected to the first rotating shafts located on both sides through a coupling.

[0017] Preferably, in the above-mentioned multi-station linkage sealing machine, the synchronous belt assembly includes a first driving wheel, a first driven wheel, and a first synchronous belt. The first driving wheel is connected to the power output shaft of the second drive mechanism, the first driven wheel is rotatably connected to the mounting base, and the first synchronous belt is tensioned and sleeved on the outside of the first driving wheel and the first driven wheel.

[0018] Preferably, in the above-mentioned multi-station linkage sealing machine, the pressure plate is fixed on the first synchronous belt.

[0019] Preferably, in the above-mentioned multi-station linkage sealing machine, the number of slide rails and grooves is two each, and they correspond one-to-one.

[0020] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a sealing mechanism and a multi-station linkage sealing machine having the same, which has the following beneficial effects:

[0021] The present invention has a simple structure. By swinging the linkage assembly, it can seal packaging bags of different specifications / thicknesses. At the same time, by setting up the following mechanism and the first drive mechanism, multiple sealing mechanisms can perform sealing actions and reciprocating motion within the frame simultaneously, thereby improving the sealing efficiency of packaging bags. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 The attached figure is a structural schematic diagram of the sealing mechanism provided by the present invention;

[0024] Figure 2 The attached figure is a structural schematic diagram of the linkage assembly provided by the present invention;

[0025] Figure 3 The attached figure is a structural schematic diagram of the multi-station linkage sealing machine provided by the present invention;

[0026] Figure 4 The attached figure is a schematic diagram of the following mechanism provided by the present invention;

[0027] Figure 5 The attached figure is a schematic diagram of the structure of the first driving mechanism provided by the present invention;

[0028] Figure 6 The attached figure is a top view of the multi-station linkage sealing machine provided by the present invention.

[0029] in:

[0030] 1-Mounting bracket;

[0031] 11-Third pivot; 12-Connecting rod six; 13-Cover body;

[0032] 2-Sealing plate;

[0033] 3-Linkage assembly;

[0034] 31-First pivot; 32-Swing block; 33-First connecting rod; 34-Connecting block; 35-Connecting plate; 36-Second pivot; 37-Second connecting rod; 371-Connecting rod one; 372-Connecting rod two; 373-Connecting rod three; 374-Connecting rod four;

[0035] 375-Link 5;

[0036] 4-Mounting plate;

[0037] 41-Staff;

[0038] 5-Rack;

[0039] 51-Slide rail;

[0040] 6-First drive mechanism;

[0041] 61-First motor; 62-First transmission assembly; 63-Splined shaft; 64-Pulley; 65-Second transmission assembly; 66-Support plate;

[0042] 7-Following institutions;

[0043] 71-Synchronous belt assembly; 711-First driven pulley; 712-First synchronous belt; 713-Mounting base; 72-Second drive mechanism; 73-Pressure plate; 74-Linkage plate;

[0044] 8-Coupling. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] See appendix Figure 1 To be continued Figure 6 This invention discloses a sealing mechanism, including a mounting frame 1, two symmetrically arranged sealing plates 2 located below the mounting frame 1, and a linkage assembly 3 for driving the two sealing plates 2 to move closer or apart.

[0047] Mounting plate 4 is fixed to one side wall of mounting bracket 1. Two parallel brackets 41 are vertically fixed on mounting plate 4. Linkage assembly 3 includes a first rotating shaft 31, a swing block 32 and a first connecting rod 33. The first rotating shaft 31 is rotatably connected between the two brackets 41. The swing block 32 is fixed on the first rotating shaft 31. One end of the first connecting rod 33 is hinged to the swing block 32 and the other end is hinged to a connecting block 34. The two sides of the connecting block 34 are fixed with symmetrically arranged connecting plates 35. Each connecting plate 35 is provided with a sliding groove 351. A second rotating shaft 36 is slidably connected between the two sliding grooves 351. The two ends of the second rotating shaft 36 extend to the outside of the sliding groove 351, and the two ends of the second rotating shaft 36 are respectively hinged to a second connecting rod 37. The two ends of the second connecting rod 37 away from the second rotating shaft 36 are rotatably connected to the sealing plate 2.

[0048] To further optimize the above technical solution, each second link 37 includes a first link 371, a second link 372, a third link 373, and a fourth link 374 that are hinged together from end to end. The second link 372 and the third link 373 are rotatably connected to the second rotating shaft 36. The end of the first link 371 that is not hinged to the second link 372 and the end of the fourth link 374 that is not hinged to the third link 373 are respectively fixed with a fifth link 375. The end of the fifth link 375 that is not connected to the first link 371 and the fourth link 374 is rotatably connected to the sealing plate 2.

[0049] To further optimize the above technical solution, the connection between connecting rod 1 371 and connecting rod 5 375 and between connecting rod 4 374 and connecting rod 5 375 is a fixed connection method of plug-in or snap-fit, which can be plugged in through a plug shaft, and the plug shaft has an irregular polygonal structure.

[0050] To further optimize the above technical solution, a third rotating shaft 11 is connected between the two side walls of the mounting frame 1. The two ends of the third rotating shaft 11 extend to the outer side of the two side walls of the mounting frame 1 and are rotatably connected to a connecting rod 12. The end of the connecting rod 12 away from the third rotating shaft 11 is rotatably connected to the sealing plate 2, and the connecting rod 12 is located outside the connecting rod 375.

[0051] To further optimize the above technical solution, a cover 13 is detachably connected to the top of the mounting bracket 1.

[0052] The present invention also discloses a multi-station linkage sealing machine, including a frame 5, multiple sealing mechanisms arranged side by side and slidably connected on the frame, a first drive mechanism 6 and a following mechanism 7;

[0053] The bottom wall of the frame 5 is equipped with a slide rail 51, and the bottom wall of the mounting plate 4 has a groove that is slidably connected to the slide rail 51.

[0054] The first drive mechanism 6 is installed inside the frame 5 and is connected to the first rotating shaft 31 to drive multiple sets of sealing plates 2 to move closer or separate synchronously.

[0055] Follower mechanism 7; Follower mechanism 7 is installed inside the frame. Follower mechanism 7 includes a timing belt assembly 71 and a second drive mechanism 72 for driving the timing belt assembly 71 to rotate. A pressure plate 73 is fixed on the timing belt assembly 71. The pressure plate 73 is fixedly connected to the mounting plate 4 located on one side edge. Two adjacent mounting plates 4 are fixedly connected by a linkage plate 74. The second drive mechanism 72 is used to drive the timing belt assembly 71 to drive the pressure plate 73 to reciprocate, thereby realizing that multiple mounting frames 1 reciprocate synchronously along the length direction of the frame 5, thereby realizing the synchronous reciprocating motion of multiple sealing mechanisms.

[0056] To further optimize the above technical solutions, such as Figure 5 As shown, the first drive mechanism 6 includes a first motor 61, a first transmission assembly 62, a splined shaft 63, and pulleys 64. The first motor 61 is installed inside the frame 5. The input end of the first transmission assembly 62 is fixedly connected to the power output shaft of the first motor 61. The splined shaft 63 is drivenly connected to the output end of the first transmission assembly 62. There are two pulleys 64, which are fixed at both ends of the splined shaft 63. The two pulleys 64 are drivenly connected to the first rotating shafts 31 located on both sides of the frame through the second transmission assembly 65. The first rotating shaft 31 located in the middle is drivenly connected to the first rotating shafts 31 located on both sides of the frame through the coupling 8.

[0057] To further optimize the above technical solutions, such as Figure 3As shown, in this embodiment, there are three sealing mechanisms; the three sealing mechanisms from left to right are the first sealing mechanism, the second sealing mechanism, and the third sealing mechanism; the linkage plates 74 from left to right are the first linkage plate and the second linkage plate; one of the two parallel brackets 41 on the first sealing mechanism for supporting the first rotating shaft 31 is fixed on the first linkage plate, and one of the two parallel brackets 41 on the third sealing mechanism for supporting the first rotating shaft 31 is fixed on the second linkage plate. The first drive mechanism 6 also includes a support plate 66; there are two support plates 66, and the two support plates 66 are respectively fixed to the top of the brackets 41 located on the first linkage plate and the second linkage plate, and the support plates 66 are provided with through holes. The two ends of the spline shaft 63 pass through the through holes on the two support plates 66 respectively, and pulleys 64 are fixed thereon.

[0058] The spline shaft 63 can be used to both connect with the first transmission assembly 62 to drive multiple sealing plates 2 to move closer or further apart synchronously; and when the second drive mechanism 72 drives the mounting plate 4 and the linkage plate 74 to reciprocate, it can also drive the support plate 66 to move with the mounting plate 4 and the linkage plate 74. The support plate 66 then drives the spline shaft 63 to move synchronously along the movement trajectory of the mounting plate 4 and the linkage plate 74, thereby realizing the reciprocating motion of multiple sealing mechanisms.

[0059] The first transmission assembly 62 adopts a synchronous belt pulley structure. The first transmission assembly 62 includes a second driving pulley, a second driven pulley, and a second synchronous belt. The second driving pulley is fixedly connected to the power output shaft of the first motor 61, and the second driven pulley is drivenly connected to the spline shaft 63. The second synchronous belt is sleeved on the outside of the second driving pulley and the second driven pulley and is tensioned. The second transmission assembly 65 also adopts a synchronous belt pulley structure, and there are two second transmission assemblies 65, which are respectively connected to two pulleys 64. Each second transmission assembly 65 includes a third driven pulley and a third synchronous belt. The third driven pulley is drivenly connected to the first rotating shaft 31 of the first sealing mechanism / the first rotating shaft 31 of the third sealing mechanism. The third synchronous belt is sleeved on the outside of the pulleys 64 and the third driven pulley and is tensioned. The two ends of the first rotating shaft 31 of the second sealing mechanism are respectively connected to the first rotating shaft 31 of the first sealing mechanism and the first rotating shaft 31 of the third sealing mechanism through couplings 8.

[0060] To further optimize the above technical solution, the synchronous belt assembly 71 includes a first driving pulley, a first driven pulley 711 and a first synchronous belt 712. The first driving pulley is connected to the power output shaft of the second drive mechanism 72. The first driven pulley 711 is rotatably connected to the mounting base 713. The first synchronous belt 712 is tensioned and sleeved on the outside of the first driving pulley and the first driven pulley 711.

[0061] To further optimize the above technical solution, the pressure plate 73 is fixed on the first synchronous belt 712.

[0062] To further optimize the above technical solution, the number of slide rails 51 and grooves is two each, and they correspond one-to-one.

[0063] The embodiments of the present invention are as follows:

[0064] The first motor 61 starts and drives the first transmission assembly 62 to rotate the spline shaft 63, which in turn drives the two pulleys 64 at both ends of the spline shaft 63 to rotate. The two pulleys 64 are respectively connected to the first shaft 31 of the first sealing mechanism and the first shaft 31 of the third sealing mechanism through the second transmission assembly 65, so that the first shaft 31 of the first sealing mechanism and the first shaft 31 of the third sealing mechanism can rotate. At the same time, the two ends of the first shaft 31 of the second sealing mechanism are respectively connected to the first shaft 31 of the first sealing mechanism and the first shaft 31 of the third sealing mechanism through the coupling 8, so that the first shafts 31 of the three sealing mechanisms can rotate synchronously. This enables the linkage assembly that drives the three sealing mechanisms to drive the corresponding two sealing plates 2 to move closer or further apart at the same time, so as to realize the sealing action of the packaging bag.

[0065] The forward and reverse rotation of the second drive mechanism 72 enables the reciprocating motion of the first synchronous belt 712. A pressure plate 73 is fixed on the first synchronous belt 712, and the pressure plate 73 is fixedly connected to the mounting plate 4 of the third sealing mechanism. A linkage plate 74 is fixed between the mounting plate 4 of the third sealing mechanism and the mounting plate 4 of the second sealing mechanism, as well as between the mounting plate 4 of the second sealing mechanism and the mounting plate 4 of the first sealing mechanism. Therefore, the reciprocating motion of the first synchronous belt 712 can drive the pressure plate 73 to reciprocate, and synchronously drive the mounting plate 4 and the linkage plate 74 to reciprocate. This enables the bracket 41 and the support plate 66 fixed on the linkage plate 74 to drive the spline shaft 63 to reciprocate synchronously along the movement trajectory of the mounting plate 4 and the linkage plate 74, so that the three sealing mechanisms can reciprocate synchronously along the slide rail 51 inside the frame 5.

[0066] The number of sealing mechanisms in this invention can be determined according to actual needs. The connection relationship between multiple sealing mechanisms is as described above and will not be repeated here.

[0067] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0068] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing mechanism, characterized in that, Includes a mounting frame (1), two symmetrically arranged sealing plates (2) located below the mounting frame (1), and a linkage assembly (3) for driving the two sealing plates (2) to move closer or apart: A mounting plate (4) is fixed to one side wall of the mounting bracket (1), and two parallel supports (41) are vertically fixed on the mounting plate (4); the connecting rod assembly (3) includes a first rotating shaft (31), a swing block (32) and a first connecting rod (33); the first rotating shaft (31) is rotatably connected between the two supports (41), the swing block (32) is fixed on the first rotating shaft (31), one end of the first connecting rod (33) is hinged to the swing block (32), and the other end is hinged to a connecting block (34). The two side walls of the block (34) are fixed with symmetrically arranged connecting plates (35), each of the connecting plates (35) is provided with a sliding groove (351), and a second rotating shaft (36) is slidably connected between the two sliding grooves (351). The two ends of the second rotating shaft (36) extend to the outside of the sliding groove (351), and the two ends of the second rotating shaft (36) are respectively hinged to a second connecting rod (37). The two ends of the second connecting rod (37) away from the connection with the second rotating shaft (36) are respectively rotatably connected to the sealing plate (2). Each of the second connecting rods (37) includes connecting rod one (371), connecting rod two (372), connecting rod three (373), and connecting rod four (374) that are hinged together from end to end; connecting rod two (372) and connecting rod three (373) are rotatably connected to the second rotating shaft (36); connecting rod one (371) is fixedly connected to the end that is not hinged to connecting rod two (372) and connecting rod four (374) is fixedly connected to the end that is not hinged to connecting rod three (373); connecting rod five (375) is rotatably connected to the end that is not connected to connecting rod one (371) and connecting rod four (374); A third rotating shaft (11) is connected between the two side walls of the mounting bracket (1). The two ends of the third rotating shaft (11) extend to the outside of the two side walls of the mounting bracket (1) and are rotatably connected to a connecting rod six (12). The end of the connecting rod six (12) away from the one connected to the third rotating shaft (11) is rotatably connected to the sealing plate (2), and the connecting rod six (12) is located outside the connecting rod five (375).

2. The sealing mechanism according to claim 1, characterized in that, The top of the mounting bracket (1) is detachably connected to a cover (13).

3. A multi-station linkage sealing machine, characterized in that, Includes a frame (5), a plurality of sealing mechanisms as described in any one of claims 1-2, a first drive mechanism (6), and a following mechanism (7) arranged side by side and slidably connected to the frame (5); The bottom wall of the frame (5) is equipped with a slide rail (51), and the bottom wall of the mounting plate (4) has a groove that is slidably connected to the slide rail (51). The first drive mechanism (6) is installed inside the frame (5) and is connected to the first rotating shaft (31) to drive multiple sets of sealing plates (2) to move closer or apart synchronously. Follower mechanism (7); The follower mechanism (7) is installed inside the frame. The follower mechanism (7) includes a timing belt assembly (71) and a second drive mechanism (72) for driving the timing belt assembly (71) to rotate. A pressure plate (73) is fixed on the timing belt assembly (71). The pressure plate (73) is fixedly connected to the mounting plate (4) located on one side edge. Two adjacent mounting plates (4) are fixedly connected by a linkage plate (74). The second drive mechanism (72) is used to drive the timing belt assembly (71) to drive the pressure plate (73) to reciprocate, thereby realizing that multiple mounting frames (1) reciprocate synchronously along the length direction of the frame (5).

4. A multi-station linkage sealing machine according to claim 3, characterized in that, The first drive mechanism (6) includes a first motor (61), a first transmission assembly (62), a splined shaft (63), and pulleys (64). The first motor (61) is installed inside the frame (5). The input end of the first transmission assembly (62) is fixedly connected to the power output shaft of the first motor (61). The splined shaft (63) is connected to the output end of the first transmission assembly (62). There are two pulleys (64). The two pulleys (64) are fixed at both ends of the splined shaft (63). The two pulleys (64) are connected to the first rotating shaft (31) located on both sides through the second transmission assembly (65). The first rotating shaft (31) located in the middle is connected to the first rotating shaft (31) located on both sides through the coupling (8).

5. A multi-station linkage sealing machine according to claim 3, characterized in that, The synchronous belt assembly (71) includes a first driving pulley, a first driven pulley (711) and a first synchronous belt (712). The first driving pulley is connected to the power output shaft of the second drive mechanism (72). The first driven pulley (711) is rotatably connected to the mounting base (713). The first synchronous belt (712) is tensioned and sleeved on the outside of the first driving pulley and the first driven pulley (711).

6. A multi-station linkage sealing machine according to claim 5, characterized in that, The pressure plate (73) is fixed on the first synchronous belt (712).

7. A multi-station linkage sealing machine according to claim 3, characterized in that, The number of slide rails (51) and grooves are both two, and they correspond one to one.

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