Heat sealing module and packaging bag production device

Abstract

The invention relates to a heat sealing module and a packaging bag production device. According to the heat sealing module, the first guide seat and the second guide seat are oppositely arranged. The first guide mechanism is movably arranged on the first guide seat, and the second guide mechanism is movably arranged on the second guide seat. And the driving mechanism is mounted on the mounting mechanism and drives the first guide mechanism and the second guide mechanism to move towards or away from each other. The first hot-pressing mechanism is connected to the first guide mechanism, the second hot-pressing mechanism is connected to the second guide mechanism, and the first hot-pressing mechanism and the second hot-pressing mechanism are oppositely arranged at intervals. The connecting mechanism is mounted on the mounting mechanism, one end of the connecting mechanism is connected with the first guide mechanism, the other end of the connecting mechanism is connected with the second guide mechanism, and the connecting mechanism is used for controlling the first guide mechanism and the second guide mechanism to synchronously move towards or away from each other. The heat sealing module and the packaging bag production device have the advantage of being good in machining quality.

Description

Technical Field

[0001] The present application relates to the technical field of packaging bag production equipment, and in particular to a heat sealing module and a packaging bag production device. Background Art

[0002] The heat sealing module is a device used to perform heat pressure sealing on double-layer plastic films. The heat sealing module heats the heat sealing head and contacts and pressurizes the double-layer plastic film to be sealed, so that the sealed double-layer plastic film reaches a viscous flow state. Under the combined action of temperature and pressure, the sealing is completed.

[0003] The heat-sealing module uses a double-sided heat-sealing head structure, which drives the heat-sealing heads on both sides to clamp and heat-seal the double-layer plastic film. However, due to errors in movement precision, the heat-sealing heads on both sides often cannot move synchronously towards each other, causing the double-layer plastic film to deviate from the pre-pressed position, or the heating time on both sides of the double-layer plastic film to be inconsistent, resulting in the seal not closing or over-heat sealing, or excessive wrinkling of the double-layer plastic film, which affects the quality of the seal and leads to poor processing quality. Summary of the Invention

[0004] Based on this, it is necessary to provide a heat sealing module and a packaging bag production device to address the problem of poor heat sealing processing quality.

[0005] The present invention provides a heat sealing module, comprising:

[0006] A mounting mechanism, the mounting mechanism comprising a first guide seat and a second guide seat, the first guide seat and the second guide seat being arranged opposite to each other;

[0007] a first guide mechanism and a second guide mechanism, wherein the first guide mechanism is movably disposed on the first guide seat, and the second guide mechanism is movably disposed on the second guide seat;

[0008] a driving mechanism, the driving mechanism being mounted on the mounting mechanism and being in transmission connection with the first guide mechanism and the second guide mechanism respectively, so as to drive the first guide mechanism and the second guide mechanism to move toward or away from each other;

[0009] a first hot pressing mechanism and a second hot pressing mechanism, wherein the first hot pressing mechanism is connected to the first guide mechanism, the second hot pressing mechanism is connected to the second guide mechanism, and the first hot pressing mechanism and the second hot pressing mechanism are arranged relatively spaced apart;

[0010] And a connecting mechanism, which is installed on the mounting mechanism, one end of the connecting mechanism is connected to the first guide mechanism, and the other end of the connecting mechanism is connected to the second guide mechanism, and the connecting mechanism is used to control the first guide mechanism and the second guide mechanism to move synchronously toward or away from each other.

[0011] In one embodiment, the first guide mechanism includes a first guide rod and a first push plate, the first guide seat is provided with a first guide hole, the first guide rod is movably disposed in the first guide hole, the driving mechanism is in transmission connection with the first push plate, and the first push plate is connected to an end of the first guide rod away from the second guide seat;

[0012] The second guide mechanism includes a second guide rod and a second push plate. The second guide seat is provided with a second guide hole. The second guide rod can be movably arranged in the second guide hole. The second push plate is connected to the end of the second guide rod away from the first guide seat. The driving mechanism is transmission-connected to the second push plate.

[0013] In one embodiment, the heat sealing module further includes a first pre-pressing head and a second pre-pressing head, the first guide mechanism further includes a third guide rod and a first buffer assembly, the first guide seat is provided with a third guide hole, the third guide rod is movably arranged in the third guide hole, one end of the third guide rod is connected to the first push plate, and the other end of the third guide rod is connected to the first pre-pressing head through the first buffer assembly; the second guide mechanism further includes a fourth guide rod and a second buffer assembly, the second guide seat is provided with a fourth guide hole, the fourth guide rod is movably arranged in the fourth guide hole, one end of the fourth guide rod is connected to the second push plate, and the other end of the fourth guide rod is connected to the second pre-pressing head through the second buffer assembly, the first pre-pressing head and the second pre-pressing head are arranged relative to each other so that the double-layer plastic film is arranged between the first pre-pressing head and the second pre-pressing head;

[0014] The first pre-pressing head is provided with a plurality of first air blowing holes, and the second pre-pressing head is provided with a plurality of second air blowing holes. The first air blowing holes and the second air blowing holes are arranged opposite to each other, and both the first air blowing holes and the second air blowing holes are connected to an air source.

[0015] In one embodiment, the first buffer assembly includes a first baffle, a first baffle spring and a first elastic member, the first baffle is arranged at the end of the third guide rod facing the second guide mechanism, the first baffle is arranged on the third guide rod, the first pre-pressing head is provided with a fifth guide hole, the first pre-pressing head is movably provided on the third guide rod through the fifth guide hole, and the first pre-pressing head is arranged between the first baffle and the first baffle spring, one end of the first elastic member is connected to the first baffle spring, and the other end of the first elastic member is connected to the first pre-pressing head; the second buffer assembly includes a second baffle, a second baffle spring and a second elastic member, the second baffle is arranged at the end of the fourth guide rod facing the first guide mechanism, the second baffle spring is arranged on the fourth guide rod, the second pre-pressing head is provided with a sixth guide hole, the second pre-pressing head is movably provided on the fourth guide rod through the sixth guide hole, and the second pre-pressing head is arranged between the second baffle and the second baffle spring, one end of the second elastic member is connected to the second baffle spring, and the other end of the second elastic member is connected to the second pre-pressing head.

[0016] In one embodiment, the first heat pressing mechanism includes a first heat sealing head and a first heating element, the first heat sealing head is arranged at the end of the first guide rod facing the second guide mechanism, and the first heating element is installed inside the first heat sealing head; the second heat pressing mechanism includes a second heat sealing head and a second heating element, the second heat sealing head is arranged at the end of the second guide rod facing the first guide mechanism, and the second heating element is installed inside the second heat sealing head, and the first heat sealing head and the second heat sealing head are arranged relative to each other.

[0017] In one embodiment, the mounting mechanism further includes a mounting frame, and the first guide seat and the second guide seat are arranged opposite to the mounting frame.

[0018] In one embodiment, the connecting mechanism includes a telescopic frame, a first connecting assembly and a second connecting assembly, the telescopic frame is provided with a first telescopic end, a second telescopic end and a mounting portion, the mounting portion is connected to the mounting frame, the first telescopic end is connected to the first push plate through the first connecting assembly, the second telescopic end is connected to the second push plate through the second connecting assembly, the first telescopic end and the second telescopic end are used to control the first push plate and the second push plate to move toward or away from each other synchronously.

[0019] In one embodiment, the first connecting assembly includes a first connecting plate, a first connecting rod and a first connecting block, the first telescopic end is connected to the first connecting plate through the first connecting block, one end of the first connecting rod is connected to the first connecting plate, and the other end of the first connecting rod is connected to the first push plate; the second connecting assembly includes a second connecting plate, a second connecting rod and a second connecting block, the second telescopic end is connected to the second connecting plate through the second connecting block, one end of the second connecting rod is connected to the second connecting plate, and the other end of the second connecting rod is connected to the second push plate.

[0020] In one embodiment, the first hot pressing mechanism further includes a first baffle, which is connected to the first guide seat and is arranged at the top of the first heat sealing head; the second hot pressing mechanism further includes a second baffle, which is connected to the second guide seat and is arranged at the top of the second heat sealing head.

[0021] The present invention also provides a packaging bag production device, comprising the heat sealing module described in any one of the above embodiments.

[0022] The heat sealing module and packaging bag production device are configured such that a first guide seat and a second guide seat are arranged relative to each other, a first drive unit drives the first guide mechanism to move on the first guide seat, and a second drive unit drives the second guide mechanism to move on the second guide seat, the first guide mechanism is connected to the first hot pressing mechanism, and the second guide mechanism is connected to the second hot pressing mechanism, that is, the first hot pressing mechanism and the second hot pressing mechanism are driven by the first drive unit and the second drive unit to move toward or away from each other, thereby heat-pressing and sealing the double-layer plastic film between the first hot pressing mechanism and the second hot pressing mechanism. A coupling mechanism is also provided to connect the first guide mechanism and the second guide mechanism, and the coupling mechanism is used to control the first guide mechanism and the second guide mechanism to move toward or away from each other synchronously, so that the first hot pressing mechanism and the second hot pressing mechanism are synchronously abutted against the double-layer plastic film, avoiding positional deviation, incomplete sealing, or excessive heat sealing of the double-layer plastic film, ensuring the parallelism of the contact surfaces of the first hot pressing mechanism and the second hot pressing mechanism, thereby ensuring uniform contact of the heat seals and consistent sealing quality, thereby improving the processing quality of the heat sealing module and packaging bag production device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of the heat sealing module described in an embodiment of the present application.

[0024] Figure 2 This is a schematic front view of the heat sealing module described in an embodiment of the present application.

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of point A.

[0026] Figure 4 This is a schematic structural diagram of the first guide seat of the heat sealing module described in an embodiment of the present application.

[0027] Figure 5 This is a schematic top view of the heat sealing module described in an embodiment of the present application.

[0028] Figure 6 This is a schematic side view of the heat sealing module described in an embodiment of the present application.

[0029] Figure Number:

[0030] 100, mounting mechanism; 110, mounting frame; 111, top plate; 112, first side plate; 113, second side plate; 120, first guide seat; 120A, first guide hole; 120B, third guide hole; 130, second guide seat;

[0031] 200, first guide mechanism; 210, first guide rod; 220, first push plate; 230, third guide rod; 240, first blocking piece; 250, first blocking spring; 260, first elastic member;

[0032] 300, second guide mechanism; 310, second guide rod; 320, second push plate; 330, fourth guide rod; 350, second retaining spring; 360, second elastic member;

[0033] 410, first driving unit; 420, second driving unit;

[0034] 510, first heat pressing mechanism; 511, first heat sealing head; 512, first heating element; 513, first baffle; 520, second heat pressing mechanism; 521, second heat sealing head; 522, second heating element; 514, second baffle;

[0035] 610, first pre-pressing head; 610A, fifth guide hole; 620, second pre-pressing head;

[0036] 700, coupling mechanism; 710, telescopic frame; 711, first telescopic end; 712, second telescopic end; 713, mounting portion; 720, first coupling assembly; 721, first coupling plate; 722, first coupling rod; 723, first coupling block; 730, second coupling assembly; 731, second coupling plate; 732, second coupling rod; 733, second coupling block;

[0037] 10. Double-layer plastic film. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0040] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0044] See Figure 1 and Figure 2 , shows a structural schematic diagram of the heat sealing module in one embodiment of the present application, the heat sealing module includes an installation mechanism 100, a first guide mechanism 200, a second guide mechanism 300, a driving mechanism, a first hot pressing mechanism 510, a second hot pressing mechanism 520 and a connecting mechanism 700.

[0045] The mounting mechanism 100 includes a first guide seat 120 and a second guide seat 130 , and the first guide seat 120 and the second guide seat 130 are arranged opposite to each other.

[0046] In one embodiment, the mounting mechanism 100 further includes a mounting frame 110 , and a first guide seat 120 and a second guide seat 130 are disposed at opposite ends of the mounting frame 110 .

[0047] In one embodiment, the first guide base 120 and the second guide base 130 are respectively arranged at opposite ends of the mounting frame 110. In other words, the first guide base 120 is mounted on the first end of the mounting frame 110, and the second guide base 130 is mounted on the second end of the mounting frame 110. The first end and the second end are two opposite ends of the mounting frame 110.

[0048] Alternatively, in other embodiments, the first guide seat 120 and the second guide seat 130 may also be optionally arranged at two adjacent ends, two opposite side surfaces, etc. of the mounting frame 110 , which can be flexibly selected according to actual needs.

[0049] The first guide mechanism 200 is movably disposed on the first guide base 120 , and the second guide mechanism 300 is movably disposed on the second guide base 130 .

[0050] The driving mechanism is installed on the mounting mechanism 100 , and is respectively connected to the first guide mechanism 200 and the second guide mechanism 300 in transmission connection, so as to drive the first guide mechanism 200 and the second guide mechanism 300 to move toward or away from each other.

[0051] In one embodiment, the driving mechanism includes a first driving unit 410 and a second driving unit 420. The first driving unit 410 is installed on the first guide seat 120, and the first driving unit 410 is transmission-connected to the first guide mechanism 200. The second driving unit 420 is installed on the second guide seat 130, and the second driving unit 420 is transmission-connected to the second guide mechanism 300 to drive the first guide mechanism 200 and the second guide mechanism 300 to move toward or away from each other.

[0052] The first hot pressing mechanism 510 is connected to the first guide mechanism 200 , and the second hot pressing mechanism 520 is connected to the second guide mechanism 300 . The first hot pressing mechanism 510 and the second hot pressing mechanism 520 are arranged relative to each other so that the double-layer plastic film 10 is arranged between the first hot pressing mechanism 510 and the second hot pressing mechanism 520 .

[0053] The coupling mechanism 700 is mounted on the mounting mechanism 100 . One end of the coupling mechanism 700 is connected to the first guide mechanism 200 , and the other end of the coupling mechanism 700 is connected to the second guide mechanism 300 . The coupling mechanism 700 is used to control the first guide mechanism 200 and the second guide mechanism 300 to move synchronously toward or away from each other. Specifically, the coupling mechanism 700 is mounted on the mounting frame 110 .

[0054] The heat sealing module described in the embodiment of the present application is provided with a first guide seat 120 and a second guide seat 130 relatively arranged on the mounting frame 110, the first driving unit 410 drives the first guide mechanism 200 to move on the first guide seat 120, and the second driving unit 420 drives the second guide mechanism 300 to move on the second guide seat 130, the first guide mechanism 200 is connected to the first hot pressing mechanism 510, and the second guide mechanism 300 is connected to the second hot pressing mechanism 520, that is, the first hot pressing mechanism 510 and the second hot pressing mechanism 520 are driven by the first driving unit 410 and the second driving unit 420 to move toward or away from each other, thereby performing heat pressing and sealing on the double-layer plastic film 10 between the first hot pressing mechanism 510 and the second hot pressing mechanism 520. The first guide mechanism 200 and the second guide mechanism 300 are connected by setting a connecting mechanism 700, which is used to control the first guide mechanism 200 and the second guide mechanism 300 to move synchronously toward or away from each other, so that the first hot pressing mechanism 510 and the second hot pressing mechanism 520 are synchronously abutted against the double-layer plastic film 10.

[0055] The heat sealing module described in the embodiment of the present application is equipped with a connecting mechanism 700 to enable the first guide mechanism 200 and the second guide mechanism 300 to move synchronously toward or away from each other, so that the first hot pressing mechanism 510 and the second hot pressing mechanism 520 are simultaneously against the double-layer plastic film 10 for hot pressing, thereby avoiding positional displacement of the seal of the double-layer plastic film 10 or the seal not being closed or excessive heat sealing, ensuring the parallelism of the contact surfaces of the first hot pressing mechanism and the second hot pressing mechanism, thereby ensuring uniform contact of the heat seal and consistent sealing quality, thereby improving the processing quality of the heat sealing module and the packaging bag production device.

[0056] In an optional embodiment, if Figure 2 As shown, the first guide seat 120 and the second guide seat 130 are symmetrically arranged relative to the symmetrical plane of the mounting frame 110, and the first guide mechanism 200 and the second guide mechanism 300 are symmetrically arranged relative to the symmetrical plane of the mounting frame 110. The first hot pressing mechanism 510 and the second hot pressing mechanism 520 are also symmetrically arranged relative to the symmetrical plane of the mounting frame 110. Therefore, the coupling mechanism 700 adjusts the first guide mechanism 200 and the second guide mechanism 300 to move synchronously toward or away from each other relative to the symmetrical plane of the mounting frame 110. When the double-layer plastic film 10 is placed on the symmetrical plane of the mounting frame 110, the first hot pressing mechanism 510 and the second hot pressing mechanism 520 will simultaneously abut against both sides of the double-layer plastic film 10 for hot pressing, thereby improving the quality of hot pressing.

[0057] Combine Figure 3 and Figure 4 , shows an enlarged structural schematic diagram of a heat sealing module in one embodiment of the present application. In some embodiments, the first guide mechanism 200 includes a first guide rod 210 and a first push plate 220. The first guide seat 120 is provided with a first guide hole 120A. The first guide rod 210 is movably disposed in the first guide hole 120A. The driving mechanism is in transmission connection with the first push plate 220. The first push plate 220 is connected to the end of the first guide rod 210 away from the second guide seat 130. The second guide mechanism 300 includes a second guide rod 310 and a second push plate 320. The second guide seat 130 is provided with a second guide hole 130A. The second guide rod 310 is movably disposed in the second guide hole 130A. The second push plate 320 is connected to the end of the second guide rod 310 away from the first guide seat 120. The driving mechanism is in transmission connection with the second push plate 320.

[0058] In one embodiment, the first push plate 220 is connected to the first drive unit 410, the second push plate 320 is connected to the second drive unit 420, the first guide rod 210 and the second guide rod 310 are both disposed between the first push plate 220 and the second push plate 320, and the first guide rod 210 and the second guide rod 310 are disposed along the first direction of the heat sealing module. It should be noted that the first direction of the heat sealing module is perpendicular to the symmetry plane of the mounting frame 110.

[0059] In this embodiment, the first driving unit 410 drives the first push plate 220 to reciprocate in the first direction of the heat sealing module, and the second driving unit 420 drives the second push plate 320 to reciprocate in the first direction of the heat sealing module, thereby driving the first hot pressing mechanism 510 to move in the first direction of the heat sealing module through the first guide rod 210, and driving the second hot pressing mechanism 520 to move in the first direction of the heat sealing module through the second guide rod 310, and the first hot pressing mechanism 510 and the second hot pressing mechanism 520 move toward or away from each other, so that when the double-layer plastic film 10 is hot-pressed, they simultaneously abut or move away from the double-layer plastic film 10, thereby completing the heat sealing of the double-layer plastic film 10.

[0060] In an optional embodiment, if Figure 2 and Figure 3 As shown, the heat sealing module further includes a first pre-pressing head 610 and a second pre-pressing head 620. The first guide mechanism 200 further includes a third guide rod 230 and a first buffer assembly. The first guide seat 120 is provided with a third guide hole 120B. The third guide rod 230 is movably disposed in the third guide hole 120B. One end of the third guide rod 230 is connected to the first push plate 220, and the other end of the third guide rod 230 is connected to the first pre-pressing head 610 via the first buffer assembly. The second guide mechanism 300 further includes a fourth guide rod 330. The second guide seat 130 is provided with a fourth guide hole 130B. The fourth guide rod 330 is movably disposed in the fourth guide hole 130B. One end of the fourth guide rod 330 is connected to the second push plate 320, and the other end of the fourth guide rod 330 is connected to the second pre-pressing head 620. The first pre-pressing head 610 and the second pre-pressing head 620 are spaced apart from each other so that the double-layer plastic film 10 is disposed between the first pre-pressing head 610 and the second pre-pressing head 620.

[0061] In one embodiment, the third guide rod 230 and the fourth guide rod 330 are disposed between the first push plate 220 and the second push plate 320 , and the third guide rod 230 and the fourth guide rod 330 are disposed along the first direction of the heat sealing module.

[0062] In the initial state, the distance between the first pre-pressing head 610 and the symmetrical plane of the mounting frame 110 is smaller than the distance between the first hot pressing mechanism 510 and the symmetrical plane of the mounting frame 110, and the distance between the second pre-pressing head 620 and the symmetrical plane of the mounting frame 110 is smaller than the distance between the second hot pressing mechanism 520 and the symmetrical plane of the mounting frame 110, so that the first pre-pressing head 610 and the second pre-pressing head 620 first contact the double-layer plastic film 10 when they move toward each other.

[0063] To improve the heat-sealing quality of the double-layer plastic film 10, this embodiment provides a first pre-pressing head 610 and a second pre-pressing head 620 to clamp and secure the double-layer plastic film 10 from both sides before hot pressing. This pre-presses and secures the double-layer plastic film 10 before hot pressing, ensuring that the double-layer plastic film 10 is in a relatively stable state before hot pressing, thereby reducing variations in hot pressing results caused by inconsistent initial states of the double-layer plastic film 10. Therefore, hot pressing after pre-pressing makes the heat-sealing quality of the double-layer plastic film 10 more stable and consistent, and reduces the defective rate accordingly.

[0064] In an optional embodiment, if Figure 3 As shown, the first buffer assembly includes a first baffle 240, a first baffle spring 250 and a first elastic member 260. The first baffle 240 is arranged at the end of the third guide rod 230 facing the second guide mechanism 300, the first baffle spring 250 is arranged on the third guide rod 230, the first pre-pressing head 610 is provided with a fifth guide hole 610A, the first pre-pressing head 610 is movably arranged on the third guide rod 230 through the fifth guide hole 610A, and the first pre-pressing head 610 is arranged between the first baffle 240 and the first baffle spring 250, one end of the first elastic member 260 is connected to the first baffle spring 250, and the other end of the first elastic member 260 is connected to the first pre-pressing head 610.

[0065] Similarly, the second buffer assembly includes a second baffle 340, a second baffle spring 350 and a second elastic member 360. The second baffle 340 is arranged at the end of the fourth guide rod 330 facing the first guide mechanism 200, the second baffle spring 350 is arranged on the fourth guide rod 330, the second pre-pressing head 620 is provided with a sixth guide hole, the second pre-pressing head 620 is movably arranged on the fourth guide rod 330 through the sixth guide hole, and the second pre-pressing head 620 is arranged between the second baffle 340 and the second baffle spring 350, one end of the second elastic member 360 is connected to the second baffle spring 350, and the other end of the second elastic member 360 is connected to the second pre-pressing head 620.

[0066] Specifically, the first elastic member 260 and the second elastic member 360 are precision springs.

[0067] In this embodiment, since the first pre-pressing head 610 and the second pre-pressing head 620 need to press the double-layer plastic film 10 first, after the first pre-pressing head 610 and the second pre-pressing head 620 are in contact, the third guide rod 230 and the fourth guide rod 330 continue to move toward each other, and the first elastic member 260 and the second elastic member 360 compress and push the first pre-pressing head 610 and the second pre-pressing head 620 to continuously apply pre-pressure to the double-layer plastic film 10, thereby improving the initial state of the double-layer plastic film 10 before hot pressing and improving the hot pressing quality of the double-layer plastic film 10.

[0068] That is to say, the first pre-pressing head 610 and the second pre-pressing head 620 contact at the central symmetric plane of the heat sealing module. After the contact, the double-layer plastic film 10 is pre-pressed at the central symmetric plane of the heat sealing module. Later, the first push plate 220 and the second push plate 320 continue to advance until the first hot pressing mechanism 510 and the second hot pressing mechanism 520 are pressed tightly, and the first elastic member 260 and the second elastic member 360 are compressed, and the double-layer plastic film 10 is continuously pressed with force. The precise first elastic member 260 and the second elastic member 360 on both sides ensure that the pressing force is consistent, and the contact surface remains at the central symmetric plane position of the heat sealing module.

[0069] In an optional embodiment, if Figure 2 and Figure 3 As shown, the first heat pressing mechanism 510 includes a first heat sealing head 511 and a first heating element 512. The first heat sealing head 511 is arranged at the end of the first guide rod 210 facing the second guide mechanism 300, and the first heating element 512 is installed inside the first heat sealing head 511. The second heat pressing mechanism 520 includes a second heat sealing head 521 and a second heating element 522. The second heat sealing head 521 is arranged at the end of the second guide rod 310 facing the first guide mechanism 200, and the second heating element 522 is installed inside the second heat sealing head 521. The first heat sealing head 511 and the second heat sealing head 521 are arranged relative to each other.

[0070] In this embodiment, the first heat sealing head 511 is heated by the first heating element 512 , and the second heat sealing head 521 is heated by the second heating element 522 , so that the first heat sealing head 511 and the second heat sealing head 521 are abutted against the double-layer plastic film 10 to form a seal.

[0071] In an optional embodiment, if Figure 1 and Figure 5As shown, the connecting mechanism 700 includes a telescopic frame 710, a first connecting assembly 720 and a second connecting assembly 730. The telescopic frame 710 is provided with a first telescopic end 711, a second telescopic end 712 and a mounting portion 713. The mounting portion 713 is connected to the mounting frame 110. The first telescopic end 711 is connected to the first push plate 220 through the first connecting assembly 720. The second telescopic end 712 is connected to the second push plate 320 through the second connecting assembly 730. The first telescopic end 711 and the second telescopic end 712 are used to control the first push plate 220 and the second push plate 320 to move synchronously toward or away from each other.

[0072] In this embodiment, a telescopic frame 710 is provided, and the opposite ends of the telescopic frame 710 are a first telescopic end 711 and a second telescopic end 712. The first telescopic end 711 and the second telescopic end 712 can move synchronously toward or away from each other. The first push plate 220 and the first telescopic end 711 are connected by a first connecting assembly 720, and the second push plate 320 and the second telescopic end 712 are connected by a second connecting assembly 730, so that the first push plate 220 and the second push plate 320 can move synchronously toward or away from each other, that is, the first hot pressing mechanism 510 and the second hot pressing mechanism 520 are pushed to move synchronously toward or away from each other, and both sides of the double-layer plastic film 10 are simultaneously abutted and hot-pressed, thereby improving the processing quality of the heat sealing module.

[0073] In an optional embodiment, if Figure 1 and Figure 5 As shown, the telescopic frame 710 is a diamond-shaped telescopic frame, wherein the diamond-shaped telescopic frame is composed of six connecting rods connected end to end to form two connected diamonds, and the two ends of the two diamond-shaped pairs are respectively a first telescopic end 711 and a second telescopic end 712. When one end of the diamond-shaped telescopic frame moves, the other end will move synchronously relative to the center point under the drive of the connecting rod, thereby driving the first hot pressing mechanism 510 and the second hot pressing mechanism 520 to move synchronously toward or away from each other, thereby improving the processing quality.

[0074] In an optional embodiment, if Figure 5 As shown, the first coupling assembly 720 includes a first coupling plate 721, a first coupling rod 722, and a first coupling block 723. The first telescopic end 711 is connected to the first coupling plate 721 via the first coupling block 723. One end of the first coupling rod 722 is connected to the first coupling plate 721, and the other end of the first coupling rod 722 is connected to the first push plate 220. The first telescopic end 711 is sequentially connected to the first push plate 220 via the first coupling block 723, the first coupling plate 721, and the first coupling rod 722, so that one end of the telescopic frame 710 can drive the first push plate 220 to move in the same direction through the first coupling assembly 720.

[0075] Similarly, the second coupling assembly 730 includes a second coupling plate 731, a second coupling rod 732, and a second coupling block 733. The second telescopic end 712 is connected to the second coupling plate 731 via the second coupling block 733. One end of the second coupling rod 732 is connected to the second coupling plate 731, and the other end of the second coupling rod 732 is connected to the second push plate 320. The second telescopic end 712 is sequentially connected to the second push plate 320 via the second coupling block 733, the second coupling plate 731, and the second coupling rod 732, allowing the second end of the telescopic frame 710 to move in the same direction as the second push plate 320 via the second coupling assembly 730.

[0076] In an optional embodiment, if Figure 1 As shown, the first hot pressing mechanism 510 also includes a first baffle 513, which is connected to the first guide seat 120 and is arranged at the top of the first heat sealing head 511; the second hot pressing mechanism 520 also includes a second baffle 514, which is connected to the second guide seat 130 and is arranged at the top of the second heat sealing head 521.

[0077] In this embodiment, the first baffle 513 and the second baffle 514 are provided to limit the hot pressing area and prevent heat loss, which helps to concentrate heat so that the heat applied by the first hot pressing mechanism 510 and the second hot pressing mechanism 520 can act more effectively on the double-layer plastic film 10, thereby improving the hot pressing effect and helping to improve the quality and performance indicators of the product.

[0078] In an optional embodiment, if Figure 6 As shown, the mounting frame 110 includes a top plate 111, a first side plate 112, and a second side plate 113. The first side plate 112 and the second side plate 113 are spaced apart. The top plate 111 is connected to the top of the first side plate 112 and the top of the second side plate 113. The first guide seat 120 is connected to one end of the first side plate 112 and one end of the second side plate 113. The second guide seat 130 is connected to the other end of the first side plate 112 and the other end of the second side plate 113. The coupling mechanism 700 is mounted on the top plate 111. One end of the first side plate 112 and the second side plate 113 of the mounting frame 110 are connected to the first guide seat 120, and the other end is connected to the second guide seat 130, thereby providing a mounting position for the first guide mechanism 200 and the second guide mechanism 300. The mounting mechanism 100 has a simple structure and has the advantage of being easy to assemble.

[0079] In an optional embodiment, the first pre-pressing head 610 is provided with a plurality of first air blowing holes, and the second pre-pressing head 620 is provided with a plurality of second air blowing holes. The first air blowing holes and the second air blowing holes are arranged opposite each other and are both connected to an air source. This allows air to be blown into the heat-sealed double-layer plastic film 10, achieving rapid cooling and sealing, thereby improving production efficiency.

[0080] In another aspect, the present application further provides a packaging bag production device, comprising the heat sealing module described in any of the aforementioned embodiments. The heat sealing module, by providing a coupling mechanism 700, causes the first guide mechanism 200 and the second guide mechanism 300 to synchronously move toward or away from each other, thereby causing the first hot pressing mechanism 510 and the second hot pressing mechanism 520 to simultaneously abut against the double-layer plastic film 10 for hot pressing, thereby preventing the seal of the double-layer plastic film 10 from shifting or not closing, thereby improving the processing quality of the heat sealing module and the packaging bag production device.

[0081] In an optional embodiment, the packaging bag production device also includes a slitting module, which is arranged in a preceding position of the heat sealing module. The slitting module is used to slit and bond the double-layer plastic film 10 formed by folding, and then use the heat sealing module to heat seal the opening of the slit double-layer plastic film 10 to form a sealed packaging bag.

[0082] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A heat sealing module, characterized in that: include: A mounting mechanism (100), the mounting mechanism (100) comprising a first guide seat (120) and a second guide seat (130), the first guide seat (120) and the second guide seat (130) being arranged opposite to each other; a first guide mechanism (200) and a second guide mechanism (300), wherein the first guide mechanism (200) is movably disposed on the first guide seat (120), and the second guide mechanism (300) is movably disposed on the second guide seat (130); a driving mechanism, the driving mechanism being mounted on the mounting mechanism (100), the driving mechanism being respectively connected in transmission with the first guide mechanism (200) and the second guide mechanism (300) to drive the first guide mechanism (200) and the second guide mechanism (300) to move toward or away from each other; a first hot pressing mechanism (510) and a second hot pressing mechanism (520), wherein the first hot pressing mechanism (510) is connected to the first guide mechanism (200), and the second hot pressing mechanism (520) is connected to the second guide mechanism (300), and the first hot pressing mechanism (510) and the second hot pressing mechanism (520) are arranged relative to each other and spaced apart; and A coupling mechanism (700) is installed on the mounting mechanism (100), one end of the coupling mechanism (700) is connected to the first guide mechanism (200), and the other end of the coupling mechanism (700) is connected to the second guide mechanism (300), and the coupling mechanism (700) is used to control the first guide mechanism (200) and the second guide mechanism (300) to move synchronously toward or away from each other.

2. The heat sealing module according to claim 1, characterized in that: The first guide mechanism (200) includes a first guide rod (210) and a first push plate (220), the first guide seat (120) is provided with a first guide hole (120A), the first guide rod (210) is movably arranged in the first guide hole (120A), the driving mechanism is in transmission connection with the first push plate (220), and the first push plate (220) is connected to an end of the first guide rod (210) away from the second guide seat (130); The second guide mechanism (300) includes a second guide rod (310) and a second push plate (320), the second guide seat (130) is provided with a second guide hole, the second guide rod (310) is movably arranged in the second guide hole, the second push plate (320) is connected to an end of the second guide rod (310) away from the first guide seat (120), and the driving mechanism is transmission-connected to the second push plate (320).

3. The heat sealing module according to claim 2, characterized in that: The heat sealing module further includes a first pre-pressing head (610) and a second pre-pressing head (620), the first guide mechanism (200) further includes a third guide rod (230) and a first buffer assembly, the first guide seat (120) is provided with a third guide hole (120B), the third guide rod (230) is movably arranged in the third guide hole (120B), one end of the third guide rod (230) is connected to the first push plate (220), and the other end of the third guide rod (230) is connected to the first pre-pressing head (610) through the first buffer assembly; the second guide mechanism (300) further includes The fourth guide rod (330) and the second buffer assembly are provided, the second guide seat (130) is provided with a fourth guide hole, the fourth guide rod (330) is movably arranged in the fourth guide hole, one end of the fourth guide rod (330) is connected to the second push plate (320), the other end of the fourth guide rod (330) is connected to the second pre-pressing head (620) through the second buffer assembly, the first pre-pressing head (610) and the second pre-pressing head (620) are relatively spaced apart so that the double-layer plastic film (10) is arranged between the first pre-pressing head (610) and the second pre-pressing head (620); The first pre-pressing head (610) is provided with a plurality of first air blowing holes, and the second pre-pressing head (620) is provided with a plurality of second air blowing holes, the first air blowing holes and the second air blowing holes are arranged opposite to each other, and both the first air blowing holes and the second air blowing holes are connected to an air source.

4. The heat sealing module according to claim 3, characterized in that: The first buffer assembly includes a first baffle (240), a first baffle spring (250) and a first elastic member (260), wherein the first baffle (240) is arranged at the end of the third guide rod (230) facing the second guide mechanism (300), the first baffle spring (250) is arranged on the third guide rod (230), the first pre-pressing head (610) is provided with a fifth guide hole (610A), the first pre-pressing head (610) is movably arranged on the third guide rod (230) through the fifth guide hole (610A), and the first pre-pressing head (610) is arranged between the first baffle (240) and the first baffle spring (250), one end of the first elastic member (260) is connected to the first baffle spring (250), and the other end of the first elastic member (260) is connected to the first pre-pressing head (610); The second buffer assembly includes a second baffle, a second baffle spring (350) and a second elastic member (360), wherein the second baffle is arranged at the end of the fourth guide rod (330) facing the first guide mechanism (200), the second baffle spring (350) is arranged on the fourth guide rod (330), the second pre-pressing head (620) is provided with a sixth guide hole, the second pre-pressing head (620) is movably arranged on the fourth guide rod (330) through the sixth guide hole, and the second pre-pressing head (620) is arranged between the second baffle and the second baffle spring (350), one end of the second elastic member (360) is connected to the second baffle spring (350), and the other end of the second elastic member (360) is connected to the second pre-pressing head (620).

5. The heat sealing module according to claim 2, characterized in that: The first hot pressing mechanism (510) includes a first heat sealing head (511) and a first heating element (512), the first heat sealing head (511) is arranged at the end of the first guide rod (210) facing the second guide mechanism (300), and the first heating element (512) is installed inside the first heat sealing head (511), the second hot pressing mechanism (520) includes a second heat sealing head (521) and a second heating element (522), the second heat sealing head (521) is arranged at the end of the second guide rod (310) facing the first guide mechanism (200), and the second heating element (522) is installed inside the second heat sealing head (521), and the first heat sealing head (511) and the second heat sealing head (521) are arranged relative to each other.

6. The heat sealing module according to claim 2, characterized in that: The mounting mechanism (100) further comprises a mounting frame (110), and the first guide seat (120) and the second guide seat (130) are arranged relative to the mounting frame (110).

7. The heat sealing module according to claim 6, characterized in that: The coupling mechanism (700) includes a telescopic frame (710), a first coupling assembly (720) and a second coupling assembly (730), wherein the telescopic frame (710) is provided with a first telescopic end (711), a second telescopic end (712) and a mounting portion (713), wherein the mounting portion (713) is connected to the mounting frame (110), the first telescopic end (711) is connected to the first push plate (220) via the first coupling assembly (720), and the second telescopic end (712) is connected to the second push plate (320) via the second coupling assembly (730), and the first telescopic end (711) and the second telescopic end (712) are used to control the first push plate (220) and the second push plate (320) to move synchronously toward or away from each other.

8. The heat sealing module according to claim 7, characterized in that: The first connecting assembly (720) comprises a first connecting plate (721), a first connecting rod (722) and a first connecting block (723); the first telescopic end (711) is connected to the first connecting plate (721) via the first connecting block (723); one end of the first connecting rod (722) is connected to the first connecting plate (721); and the other end of the first connecting rod (722) is connected to the first push plate (220); The second connecting assembly (730) includes a second connecting plate (731), a second connecting rod (732) and a second connecting block (733), the second telescopic end (712) is connected to the second connecting plate (731) via the second connecting block (733), one end of the second connecting rod (732) is connected to the second connecting plate (731), and the other end of the second connecting rod (732) is connected to the second push plate (320).

9. The heat sealing module according to claim 5, characterized in that: The first hot pressing mechanism (510) further includes a first baffle (513), which is connected to the first guide seat (120) and is arranged at the top of the first heat sealing head (511); the second hot pressing mechanism (520) further includes a second baffle (514), which is connected to the second guide seat (130) and is arranged at the top of the second heat sealing head (521).

10. A packaging bag production device, characterized in that: The heat sealing module comprises the heat sealing module according to any one of claims 1 to 9.

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