Packaging film transverse sealing mechanism

Abstract

The utility model discloses a kind of packaging film transverse sealing mechanism, including mounting bracket, power component, transverse sealing device, power component includes main shaft and driver, main shaft is rotatably installed in mounting bracket, driver is installed in mounting bracket and is connected with main shaft transmission, main shaft is drivenly connected with first transmission member by first eccentric connector, main shaft is drivenly connected with second transmission member by second eccentric connector;Transverse sealing device includes oppositely arranged first heat sealer and second heat sealer, first heat sealer is slidably installed in mounting bracket and is connected with first transmission member, second heat sealer is slidably installed in mounting bracket and is connected with second transmission member;Wherein, the eccentric direction of first eccentric connector relative to main shaft and the eccentric direction of second eccentric connector relative to main shaft are 180 degrees included angle. The packaging film transverse sealing mechanism provided by the utility model can drive first heat sealer and second heat sealer relative motion by main shaft, and first heat sealer and second heat sealer have good synchronism, guarantee heat sealing quality.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a horizontal sealing mechanism for packaging film. Background Technology

[0002] Some existing packaging film packaging equipment uses a horizontal sealing mechanism to heat seal the packaging film. This horizontal sealing mechanism typically includes two heat sealers and two lifting cylinders, with the two lifting cylinders driving the two heat sealers one-to-one. While this horizontal sealing mechanism is simple in structure, it requires controlling the two lifting cylinders to move the two heat sealers separately, which cannot effectively ensure synchronized movement of the two heat sealers and affects the heat sealing quality. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a horizontal sealing mechanism for packaging film, which can drive the first heat sealer and the second heat sealer to move relative to each other through a main shaft. The first heat sealer and the second heat sealer have good synchronization, ensuring the heat sealing quality.

[0004] According to an embodiment of the present invention, a packaging film horizontal sealing mechanism includes a mounting frame, a power assembly, and a horizontal sealing device. The power assembly includes a main shaft and a driver. The main shaft is rotatably mounted on the mounting frame, and the driver is mounted on the mounting frame and drivenly connected to the main shaft. The main shaft is drivenly connected to a first transmission component via a first eccentric connector, and to a second transmission component via a second eccentric connector. The horizontal sealing device includes a first heat sealer and a second heat sealer disposed opposite to each other. The first heat sealer is slidably mounted on the mounting frame and connected to the first transmission component, and the second heat sealer is slidably mounted on the mounting frame and connected to the second transmission component. The first heat sealer and the second heat sealer can slide relative to each other to heat seal the packaging film. The eccentric direction of the first eccentric connector relative to the main shaft and the eccentric direction of the second eccentric connector relative to the main shaft form a 180-degree angle, so that the main shaft can drive the first heat sealer and the second heat sealer to move relative to each other or away.

[0005] The packaging film horizontal sealing mechanism according to the embodiments of this utility model has at least the following beneficial effects: During operation, the driver drives the main shaft to rotate. At this time, the main shaft can drive the first transmission component to move through the first eccentric connector, and then the first transmission component can drive the first heat sealer to move. The main shaft can also drive the second transmission component to move through the second eccentric connector, and then the second transmission component can drive the second heat sealer to move. Since the eccentric direction of the first eccentric connector relative to the main shaft and the eccentric direction of the second eccentric connector relative to the main shaft are at a 180-degree angle, the first heat sealer and the second heat sealer move in opposite directions, so that the first heat sealer and the second heat sealer can move closer or further apart relative to each other. Through the above settings, the packaging film horizontal sealing mechanism provided by this utility model can drive the first heat sealer and the second heat sealer to move relative to each other through the main shaft. The first heat sealer and the second heat sealer have good synchronization, ensuring the heat sealing quality and reducing the difficulty of control.

[0006] According to some embodiments of the present invention, the first eccentric connector includes a first eccentric member and a first connecting seat. The first eccentric member is eccentrically provided with a first mounting hole. The main shaft is inserted into the first mounting hole. The first connecting seat is rotatably sleeved on the first eccentric member. The first connecting seat is connected to the first transmission member. The first transmission member is rotatably connected to the first heat sealer. The second eccentric connector includes a second eccentric member and a second connecting seat. The second eccentric member is eccentrically provided with a second mounting hole. The main shaft is inserted into the second mounting hole. The second connecting seat is rotatably sleeved on the second eccentric member. The second connecting seat is connected to the second transmission member. The second transmission member is rotatably connected to the second heat sealer. The rotation axis of the first connecting seat and the rotation axis of the second connecting seat are arranged at 180 degrees relative to the rotation axis of the main shaft.

[0007] According to some embodiments of the present invention, the first transmission member is rotatably connected to a first sliding shaft, the first sliding shaft is slidably inserted into the mounting bracket, and the first sliding shaft is fixedly connected to the first heat sealer; the second transmission member is rotatably connected to a second sliding shaft, the second sliding shaft is slidably inserted into the mounting bracket, and the second sliding shaft is fixedly connected to the second heat sealer.

[0008] According to some embodiments of the present invention, the first heat sealer and the second heat sealer are located on the same side of the main shaft. The first heat sealer is detachably connected to the first sliding shaft by a first bolt. A third mounting hole for the first bolt is provided on the side of the first heat sealer away from the main shaft. The second heat sealer is detachably connected to the second sliding shaft by a second bolt. A fourth mounting hole for the second bolt is provided on the side of the second heat sealer away from the main shaft.

[0009] According to some embodiments of this utility model, two of each of the first eccentric connector, the first transmission member, the first sliding shaft, the second eccentric connector, the second transmission member, and the second sliding shaft are provided. The two first eccentric connectors are installed one-to-one at opposite ends of the main shaft. The two first sliding shafts are connected one-to-one to opposite ends of the first heat sealer. The two second eccentric connectors are installed one-to-one at opposite ends of the main shaft. The two second sliding shafts are connected one-to-one to opposite ends of the second heat sealer. The two second sliding shafts and the second heat sealer are located between the two first sliding shafts. The two second transmission members are located between the two first transmission members. The driver is located between the two second transmission members.

[0010] According to some embodiments of the present invention, the first connecting seat is rotatably mounted on the first eccentric member via a first bearing, and the second connecting seat is rotatably mounted on the second eccentric member via a second bearing.

[0011] According to some embodiments of the present invention, a first clamping device is provided between the first eccentric member and the main shaft, the first clamping device being used to fix the first eccentric member to the main shaft, and a second clamping device is provided between the second eccentric member and the main shaft, the second clamping device being used to fix the second eccentric member to the main shaft.

[0012] According to some embodiments of the present invention, the first transmission member is configured as a linkage structure with adjustable length, and the second transmission member is configured as a linkage structure with adjustable length.

[0013] According to some embodiments of the present invention, the first transmission component includes a push rod and a connector. One end of the push rod is inserted into and screwed to the connector, and the other end of the push rod is connected to the first eccentric connector. The connector is rotatably connected to the first heat sealer.

[0014] According to some embodiments of the present invention, a first buffer device is provided between the second connecting seat and the second transmission member, and / or, a first buffer device is provided between the first connecting seat and the first transmission member; the mounting frame is mounted on a lifting device, and the lifting device is capable of lifting the mounting frame; the mounting frame is movably mounted on a frame, and a second buffer device is provided between the mounting frame and the frame.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the horizontal sealing mechanism of the packaging film according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 An enlarged view of the horizontal sealing mechanism of the packaging film at point A is shown;

[0019] Figure 3 for Figure 1 A top view of the packaging film horizontal sealing mechanism is shown;

[0020] Figure 4 for Figure 1 An exploded view of the first eccentric connector of the packaging film horizontal sealing mechanism is shown.

[0021] Figure 5 for Figure 1 An exploded view of the second eccentric connector of the packaging film horizontal sealing mechanism is shown.

[0022] Figure label:

[0023] Mounting bracket 100, spindle 210, driver 220, first eccentric connector 230, first eccentric component 231, first mounting hole 2311, first connecting seat 232, first bearing 233, first clamping device 234, first clamping block 2341, second clamping block 2342, first transmission component 240, push rod 241, connector 242, second eccentric connector 250, second eccentric component 251, second mounting hole 2511, second connecting seat 252, second bearing 253, second clamping device 254, second transmission component 260, first sliding shaft 270, second sliding shaft 280, first buffer device 290, first heat sealer 310, third mounting hole 311, second heat sealer 320, fourth mounting hole 321, lifting device 400, second buffer device 500. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figures 1 to 3 According to an embodiment of the present invention, the packaging film horizontal sealing mechanism includes a mounting frame 100, a power assembly, and a horizontal sealing device. The power assembly includes a main shaft 210 and a driver 220. The main shaft 210 is rotatably mounted on the mounting frame 100, and the driver 220 is mounted on the mounting frame 100 and drivenly connected to the main shaft 210. The main shaft 210 is drivenly connected to a first transmission member 240 via a first eccentric connector 230, and the main shaft 210 is drivenly connected to a second transmission member 260 via a second eccentric connector 250. The horizontal sealing device includes a first heat sealer 310 and a second heat sealer 320 disposed opposite to each other. A heat sealer 310 is slidably mounted on the mounting frame 100 and connected to the first transmission member 240. A second heat sealer 320 is slidably mounted on the mounting frame 100 and connected to the second transmission member 260. The first heat sealer 310 and the second heat sealer 320 can slide relative to each other to heat seal the packaging film. The eccentric direction of the first eccentric connector 230 relative to the main shaft 210 forms a 180-degree angle with the eccentric direction of the second eccentric connector 250 relative to the main shaft 210, so that the main shaft 210 can drive the first heat sealer 310 and the second heat sealer 320 to move relative to each other or away.

[0029] In the packaging film horizontal sealing mechanism provided by this utility model, during operation, the driver 220 drives the main shaft 210 to rotate. At this time, the main shaft 210 can drive the first transmission component 240 to move through the first eccentric connector 230, and then the first transmission component 240 can drive the first heat sealer 310 to move. The main shaft 210 can also drive the second transmission component 260 to move through the second eccentric connector 250, and then the second transmission component 260 can drive the second heat sealer 320 to move. Since the eccentric direction of the first eccentric connector 230 relative to the main shaft 210 is different from that of the second eccentric connector 250 relative to the main shaft 210, the eccentricity of the second eccentric connector 250 relative to the main shaft 210 is different. The eccentric direction of shaft 210 is at a 180-degree angle, which makes the first heat sealer 310 and the second heat sealer 320 move in opposite directions, thereby allowing the first heat sealer 310 and the second heat sealer 320 to move closer or further apart relative to each other. With the above arrangement, the packaging film horizontal sealing mechanism provided by this utility model can drive the first heat sealer 310 and the second heat sealer 320 to move relative to each other through the main shaft 210. The first heat sealer 310 and the second heat sealer 320 have good synchronization, ensuring the heat sealing quality. The main shaft 210 only needs to be driven by one driver 220, which can also reduce the control difficulty.

[0030] Reference Figure 1 , Figure 2 and Figure 4 According to some embodiments of the present invention, the first eccentric connector 230 includes a first eccentric member 231 and a first connecting seat 232. The first eccentric member 231 is eccentrically provided with a first mounting hole 2311, the main shaft 210 is inserted into the first mounting hole 2311, the first connecting seat 232 is rotatably sleeved on the first eccentric member 231, the first connecting seat 232 is connected to the first transmission member 240, and the first transmission member 240 is rotatably connected to the first heat sealer 310; see reference. Figure 1 , Figure 2 and Figure 5The second eccentric connector 250 includes a second eccentric member 251 and a second connecting seat 252. The second eccentric member 251 is eccentrically provided with a second mounting hole 2511. The spindle 210 is inserted into the second mounting hole 2511. The second connecting seat 252 is rotatably sleeved on the second eccentric member 251. The second connecting seat 252 is connected to the second transmission member 260. The second transmission member 260 is rotatably connected to the second heat sealer 320. With the above configuration, the first eccentric connector 230 can drive the first transmission member 240 to reciprocate, and the first transmission member 240 can drive the first heat sealer 310 to slide; the second eccentric connector 250 can drive the second transmission member 260 to reciprocate, and the second transmission member 260 can drive the second heat sealer 320 to slide; wherein, the rotation axis of the first connecting seat 232 and the rotation axis of the second connecting seat 252 are both offset from the rotation axis of the main shaft 210, and the rotation axis of the first connecting seat 232 and the rotation axis of the second connecting seat 252 are arranged at 180 degrees relative to the rotation axis of the main shaft 210, thereby achieving an eccentricity of the first eccentric connector 230 relative to the main shaft 210 at an angle of 180 degrees to the eccentricity of the second eccentric connector 250 relative to the main shaft 210, thus the sliding directions of the first heat sealer 310 and the second heat sealer 320 are opposite, thereby enabling the first heat sealer 310 and the second heat sealer 320 to slide closer or further apart relative to each other.

[0031] Furthermore, during the rotation of the spindle 210, the first eccentric component 231 and the first connecting seat 232 maintain a constant rotational engagement, with no collision between them. Consequently, the first eccentric connector 230 operates more smoothly and quietly, reducing wear and extending its service life. Similarly, the second eccentric connector 250 also operates more smoothly and quietly, reducing wear and extending its service life.

[0032] Reference Figure 3 , Figure 4 and Figure 5According to some embodiments of this utility model, a first transmission member 240 is rotatably connected to a first sliding shaft 270, which is slidably inserted into the mounting bracket 100 and fixedly connected to a first heat sealer 310; a second transmission member 260 is rotatably connected to a second sliding shaft 280, which is slidably inserted into the mounting bracket 100 and fixedly connected to a second heat sealer 320. With this configuration, the first sliding shaft 270 and the second sliding shaft 280 can act as guides, thereby making the sliding of the first heat sealer 310 and the second heat sealer 320 smoother. Furthermore, the non-axial force transmitted from the first transmission member 240 to the first sliding shaft 270 and the non-axial force transmitted from the second transmission member 260 to the second sliding shaft 280 can be absorbed by the mounting bracket 100, effectively preventing vibration of the first heat sealer 310 and the second heat sealer 320 caused by these non-axial forces, thus ensuring the heat sealing quality.

[0033] Reference Figure 1 and Figure 3 According to some embodiments of this utility model, the first heat sealer 310 and the second heat sealer 320 are located on the same side of the main shaft 210. The first heat sealer 310 is detachably connected to the first sliding shaft 270 by a first bolt. A third mounting hole 311 for mounting the first bolt is provided on the side of the first heat sealer 310 away from the main shaft 210. The second heat sealer 320 is detachably connected to the second sliding shaft 280 by a second bolt. A fourth mounting hole 321 for mounting the second bolt is provided on the side of the second heat sealer 320 away from the main shaft 210. With the above arrangement, the first bolt and the second bolt can be disassembled and installed on the same side, thereby facilitating the disassembly, installation, and replacement of the first heat sealer 310 and the second heat sealer 320.

[0034] Reference Figure 1 and Figure 3 According to some embodiments of this utility model, two of each of the following components are provided: the first eccentric connector 230, the first transmission component 240, the first sliding shaft 270, the second eccentric connector 250, the second transmission component 260, and the second sliding shaft 280. Two first eccentric connectors 230 are installed one-to-one at opposite ends of the main shaft 210. Two first sliding shafts 270 are connected one-to-one to opposite ends of the first heat sealer 310. Two second eccentric connectors 250 are installed one-to-one at opposite ends of the main shaft 210. Two second sliding shafts 280 are connected one-to-one to opposite ends of the second heat sealer 320. This arrangement further ensures smoother movement of the first heat sealer 310 and the second heat sealer 320. The two second sliding shafts 280 and the second heat sealer 320 are located between the two first sliding shafts 270, the two second transmission components 260 are located between the two first transmission components 240, and the driver 220 is located between the two second transmission components 260. This layout allows for a compact structure of the entire power assembly.

[0035] Reference Figure 2 , Figure 4 and Figure 5 According to some embodiments of the present invention, the first connecting seat 232 is rotatably mounted on the first eccentric member 231 via the first bearing 233, so that the first connecting seat 232 rotates more smoothly and stably relative to the first eccentric member 231; the second connecting seat 252 is rotatably mounted on the second eccentric member 251 via the second bearing 253, so that the second connecting seat 252 rotates more smoothly and stably relative to the second eccentric member 251.

[0036] Reference Figure 2 , Figure 4 and Figure 5 According to some embodiments of the present invention, a first clamping device 234 is provided between the first eccentric member 231 and the main shaft 210. The first clamping device 234 is used to fix the first eccentric member 231 to the main shaft 210. A second clamping device 254 is provided between the second eccentric member 251 and the main shaft 210. The second clamping device 254 is used to fix the second eccentric member 251 to the main shaft 210.

[0037] According to some embodiments of the present invention, the first clamping device 234 includes a first clamping block 2341 and a second clamping block 2342. The first clamping block 2341 is fixedly disposed on the first eccentric member 231, and the second clamping block 2342 is detachably fixed to the first clamping block 2341 by bolts. The spindle 210 is located between the first clamping block 2341 and the second clamping block 2342, and the first clamping block 2341 and the second clamping block 2342 cooperate to clamp the spindle 210. With the above arrangement, the first clamping device 234 can fix the first eccentric member 231 to the spindle 210, and the installation is convenient.

[0038] It should be noted that in other embodiments, the first clamping device 234 may also adopt other configurations. For example, the first clamping device 234 includes two protrusions disposed on the first eccentric member 231 and bolts screwed onto the protrusions. The main shaft 210 passes through the two protrusions, and the bolts on the protrusions abut against the main shaft 210.

[0039] The configuration of the second clamping device 254 can be referenced from that of the first clamping device 234, and will not be described in detail here.

[0040] Reference Figure 4 and Figure 5According to some embodiments of this utility model, the first transmission member 240 is configured as a linkage structure with adjustable length, and the second transmission member 260 is configured as a linkage structure with adjustable length. Thus, it can compensate for installation errors, machining errors, etc. between the main shaft 210 and the two heat sealers, and can also adjust the movement range of the two heat sealers by adjusting the length of the first transmission member 240 and the second transmission member 260.

[0041] Reference Figure 2 and Figure 4 According to some embodiments of this utility model, the first transmission component 240 includes a push rod 241 and a connector 242. One end of the push rod 241 is inserted into and screwed to the connector 242, and the other end of the push rod 241 is connected to the first eccentric connector 230. The connector 242 is rotatably connected to the first heat sealer 310. Therefore, the thread engagement length between the push rod 241 and the connector 242 can be adjusted by the relative rotation between them, thereby adjusting the transmission of the entire first transmission component 240. The adjustment is convenient and simple.

[0042] Of course, the first transmission component 240 can also be configured in other ways to achieve length adjustment. For example, the first transmission component 240 may include an inner rod and an outer rod, with the outer rod sleeved on the inner rod and a locking screw installed on the outer rod. The locking screw abuts against the inner rod, the inner rod is connected to the first eccentric connector 230, and the outer rod is rotatably connected to the first heat sealer 310.

[0043] The second transmission component 260 can be configured in the same way as the first transmission component 240, so that the length of the second transmission component 260 can be adjusted. The specific configuration method will not be described in detail here.

[0044] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, a first buffer device 290 is provided between the second connecting seat 252 and the second transmission member 260, and / or, a first buffer device 290 is provided between the first connecting seat 232 and the first transmission member 240. Thus, the impact generated when the first heat sealer 310 and the second heat sealer 320 come into contact and collide with each other is reduced by the first buffer device 290.

[0045] In specific implementation, the first buffer device 290 can be an elastic buffer device. Of course, the first buffer device 290 can also be a magnetic buffer device or a hydraulic buffer device, etc.

[0046] Reference Figure 1 According to some embodiments of the present invention, the mounting bracket 100 is mounted on the lifting device 400, and the lifting device 400 can lift the mounting bracket 100 to adjust the working position of the horizontal sealing device.

[0047] Reference Figure 1 According to some embodiments of the present invention, the mounting bracket 100 is vertically mounted on the frame (not shown in the figure), and a second buffer device 500 is provided between the mounting bracket 100 and the frame to buffer the impact received by the mounting bracket 100 when it is raised or lowered.

[0048] It should be noted that in other embodiments, the first eccentric connector 230 and the second eccentric connector 250 described above may also adopt other configuration methods. Taking the first eccentric connector 230 as an example, in other embodiments, the first eccentric connector 230 may be configured as a cam. In this case, the first transmission member 240 is slidably mounted on the mounting bracket 100. One end of the first transmission member 240 is provided with a transmission hole, and the cam is located in the transmission hole. Through the abutting cooperation between the cam and the inner wall of the transmission hole, the cam can push the first transmission member 240 to slide repeatedly.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A packaging film horizontal sealing mechanism, characterized in that, include: Mounting bracket (100), The power assembly includes a spindle (210) and a driver (220). The spindle (210) is rotatably mounted on the mounting bracket (100). The driver (220) is mounted on the mounting bracket (100) and is drive-connected to the spindle (210). The spindle (210) is drive-connected to a first transmission component (240) via a first eccentric connector (230). The spindle (210) is drive-connected to a second transmission component (260) via a second eccentric connector (250). The horizontal sealing device includes a first heat sealer (310) and a second heat sealer (320) arranged opposite to each other. The first heat sealer (310) is slidably mounted on the mounting frame (100) and connected to the first transmission member (240). The second heat sealer (320) is slidably mounted on the mounting frame (100) and connected to the second transmission member (260). The first heat sealer (310) and the second heat sealer (320) can slide relative to each other to heat seal the packaging film. The first eccentric connector (230) is eccentric relative to the main shaft (210) at an angle of 180 degrees to the second eccentric connector (250) relative to the main shaft (210), so that the main shaft (210) can drive the first heat sealer (310) and the second heat sealer (320) to move relative to each other or away.

2. The packaging film horizontal sealing mechanism according to claim 1, characterized in that: The first eccentric connector (230) includes a first eccentric member (231) and a first connecting seat (232). The first eccentric member (231) is eccentrically provided with a first mounting hole (2311). The spindle (210) is inserted into the first mounting hole (2311). The first connecting seat (232) is rotatably sleeved on the first eccentric member (231). The first connecting seat (232) is connected to the first transmission member (240). The first transmission member (240) is rotatably connected to the first heat sealer (310). The second eccentric connector (250) includes a second eccentric member (251) and a second connecting seat (252). The second eccentric member (251) is eccentrically provided with a second mounting hole (2511). The main shaft (210) is inserted into the second mounting hole (2511). The second connecting seat (252) is rotatably sleeved on the second eccentric member (251). The second connecting seat (252) is connected to the second transmission member (260). The second transmission member (260) is rotatably connected to the second heat sealer (320). The rotation axis of the first connecting seat (232) and the rotation axis of the second connecting seat (252) are arranged at 180 degrees relative to the rotation axis of the main shaft (210).

3. The packaging film horizontal sealing mechanism according to claim 2, characterized in that: The first transmission component (240) is rotatably connected to a first sliding shaft (270), the first sliding shaft (270) is slidably inserted into the mounting bracket (100), and the first sliding shaft (270) is fixedly connected to the first heat sealer (310); The second transmission component (260) is rotatably connected to a second sliding shaft (280), which is slidably inserted into the mounting bracket (100) and fixedly connected to the second heat sealer (320).

4. The packaging film horizontal sealing mechanism according to claim 3, characterized in that, The first heat sealer (310) and the second heat sealer (320) are located on the same side of the main shaft (210). The first heat sealer (310) is detachably connected to the first sliding shaft (270) by a first bolt. The first heat sealer (310) has a third mounting hole (311) for the first bolt to be installed on the side away from the main shaft (210). The second heat sealer (320) is detachably connected to the second sliding shaft (280) by a second bolt. The second heat sealer (320) has a fourth mounting hole (321) for the second bolt to be installed on the side away from the main shaft (210).

5. The packaging film horizontal sealing mechanism according to claim 3, characterized in that, Two of each of the following components are provided: the first eccentric connector (230), the first transmission component (240), the first sliding shaft (270), the second eccentric connector (250), the second transmission component (260), and the second sliding shaft (280). The two first eccentric connectors (230) are installed one-to-one at opposite ends of the main shaft (210). The two first sliding shafts (270) are connected one-to-one to opposite ends of the first heat sealer (310). The two second eccentric connectors (250) are installed one-to-one at opposite ends of the main shaft (210). The two second sliding shafts (280) are connected one-to-one to opposite ends of the second heat sealer (320). The two second sliding shafts (280) and the second heat sealer (320) are located between the two first sliding shafts (270). The two second transmission components (260) are located between the two first transmission components (240). The driver (220) is located between the two second transmission components (260).

6. The packaging film horizontal sealing mechanism according to claim 2, characterized in that, The first connecting seat (232) is rotatably mounted on the first eccentric member (231) via the first bearing (233), and the second connecting seat (252) is rotatably mounted on the second eccentric member (251) via the second bearing (253).

7. The packaging film horizontal sealing mechanism according to claim 2, characterized in that, A first clamping device (234) is provided between the first eccentric member (231) and the main shaft (210), the first clamping device (234) is used to fix the first eccentric member (231) to the main shaft (210), and a second clamping device (254) is provided between the second eccentric member (251) and the main shaft (210), the second clamping device (254) is used to fix the second eccentric member (251) to the main shaft (210).

8. The packaging film horizontal sealing mechanism according to claim 2, characterized in that, The first transmission member (240) is configured as a linkage structure with adjustable length, and the second transmission member (260) is configured as a linkage structure with adjustable length.

9. The packaging film horizontal sealing mechanism according to claim 8, characterized in that, The first transmission component (240) includes a push rod (241) and a connector (242). One end of the push rod (241) is inserted into and screwed to the connector (242), and the other end of the push rod (241) is connected to the first eccentric connector (230). The connector (242) is rotatably connected to the first heat sealer (310).

10. The packaging film horizontal sealing mechanism according to claim 2, characterized in that: A first buffer device (290) is provided between the second connecting seat (252) and the second transmission member (260), and / or, a first buffer device (290) is provided between the first connecting seat (232) and the first transmission member (240); The mounting bracket (100) is mounted on the lifting device (400), which is capable of lifting the mounting bracket (100). The mounting bracket (100) is vertically mounted on the frame, and a second buffer device (500) is provided between the mounting bracket (100) and the frame.

Images