Hot-pressing sealing device for plastic bags

Abstract

The utility model discloses a hot-press sealing device for a plastic bag, and relates to the technical field of sealing. The device comprises an operation table, a vertical plate is fixedly connected to one side of the operation table, two first fixing plates are fixedly connected to the side, close to the operation table, of the vertical plate, a sliding rod is fixedly connected between the two first fixing plates, and a first sliding block is clamped to the outer side of the sliding rod in a sliding mode; a plastic bag containing materials is placed at the top end of a bearing plate, a rotating handle is rotated to drive a worm to rotate, the worm and a worm wheel are in meshed connection, meanwhile, the worm wheel and a threaded rod are driven to rotate, and therefore a second sliding block is driven to vertically move along the outer side of the threaded rod, and meanwhile a first sliding block is driven to vertically slide along the outer side of a sliding rod; and the stability of the structure is improved, then the bearing plate is driven to vertically move, adjustment is conducted according to the height of a plastic bag containing materials, hot-pressing sealing operation is conveniently conducted on the plastic bag, and the application range of the equipment is further widened.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing, in particular to a hot-pressing sealing device for plastic bags. Background Art

[0002] The hot-pressing sealing device for plastic bags is a device used to seal the mouth of plastic bags. It usually uses a heating element (such as a heating rod or heating wire) to heat the mouth of the plastic bag to melt the plastic material, and then presses the molten plastic material together under a certain pressure to achieve sealing. This device is widely used in food packaging, medical packaging and various commodity packaging to ensure the sealing and moisture-proof properties of the packaging.

[0003] After searching, a Chinese patent discloses a hot-pressing sealing device for plastic bags (authorization announcement number CN220721618U), which also belongs to the technical field of sealing devices, including "a sealing machine body, the sealing machine body includes a base and a pressure rod, the outer wall of the base is provided with a notch, the notch is provided with a support assembly, and the base is provided with a driving mechanism for driving the support assembly to rotate; the support assembly includes a first support frame plate and a second support frame plate, the second support frame plate is plugged into the first support frame plate, and both sides of the bottom of the first support frame plate are provided with sliding grooves." Although this patented technology can facilitate the support of plastic bags, it makes it difficult for the sealed part of the plastic bag to curl up.

[0004] However, in the actual application of this patented technology, the distance between the support frame plate and the hot pressure head is fixed. When using a larger plastic packaging bag, when the plastic bag is placed flat on the top of the support plate, the bag opening will face downward, which may easily cause the material in the bag to spill out, resulting in a reduced scope of application of the equipment. In response to the above problems, the inventor proposed a hot pressure sealing device for plastic bags to solve the above problems. Utility Model Content

[0005] In order to solve the problem of applicability of a hot-pressing sealing device for plastic bags, the utility model aims to provide a hot-pressing sealing device for plastic bags.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions: A hot pressing and sealing device for plastic bags, including an operating table, one side of the operating table is fixedly connected with a vertical plate, one side of the vertical plate close to the operating table is fixedly connected with two first fixing plates, a sliding rod is fixedly connected between the two first fixing plates, the outer side of the sliding rod is slidably clamped with a first slider, one side of the vertical plate close to the first fixing plate is fixedly connected with two second fixing plates, a threaded rod is rotatably connected between the two second fixing plates, the outer side of the threaded rod is threadedly connected with a second slider, two symmetrically distributed through grooves are opened on one side of the vertical plate, the first slider and the second slider are both slidably clamped in the through grooves, a bearing plate is arranged on the side of the vertical plate far from the first fixing plate, the first slider and the second slider are both fixedly connected with the bearing plate, four corners of the bottom end of the operating table are all fixedly connected with support rods, a bottom plate is fixedly connected between the bottom ends of the support rods, and self-locking wheels are rotatably connected at four corners of the bottom end of the bottom plate.

[0007] Preferably, an installation plate is fixedly connected to the top end of the operating table, an electric cylinder is fixedly installed on the top end of the installation plate, the piston rod of the electric cylinder extends into the interior of the installation plate and is fixedly connected with an installation frame, a hot pressing head is movably inserted at the bottom end of the installation frame, two symmetrically distributed L-shaped plates are fixedly connected to one side of the installation frame, a plug rod is arranged inside the L-shaped plate, symmetrically distributed jacks are opened on one side of the hot pressing head, the front end of the plug rod is movably inserted into the jacks, a limiting plate is fixedly connected to the outer side of the plug rod, a spring is arranged between the side of the limiting plate far from the jack and the L-shaped plate, the spring is movably sleeved on the outer side of the plug rod, and the ends of the plug rods far from the jacks all extend to one side of the L-shaped plate and are fixedly connected with pull rods.

[0008] Preferably, symmetrically distributed guide rods are fixedly connected to the top end of the installation frame, bearings are fixedly installed on the top end of the installation plate and on both sides of the rotary handle, and the top ends of the guide rods all movably penetrate through the bearings.

[0009] Preferably, the bottom end of the threaded rod extends to the bottom end of the second fixing plate and is fixedly connected with a worm gear, a worm is rotatably connected to one side of the second fixing plate close to the worm gear, the worm and the worm gear are meshed, and one end of the rotating shaft of the worm extends to one side of the second fixing plate and is fixedly connected with a rotary handle.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. Place the plastic bag filled with materials on the top of the bearing plate, and drive the worm to rotate by turning the handle. Utilize the meshing connection between the worm and the worm gear to drive the worm gear and the threaded rod to rotate simultaneously, thereby driving the second slider to move vertically along the outer side of the threaded rod and driving the first slider to slide vertically along the outer side of the sliding rod, improving the stability of the structure. Furthermore, drive the bearing plate to move vertically, adjust according to the height of the plastic bag filled with materials, facilitate the hot pressing and sealing operation of the plastic bag, and further expand the application range of the equipment;

[0012] 2. Insert the top end of the hot pressing head into the bottom inside of the mounting frame movably, and insert the front end of the insertion rod into the insertion hole, thereby limiting the vertical movement of the hot pressing head, and then complete the installation operation of the hot pressing head. During disassembly, just pull the pull rod to drive the insertion rod to move synchronously, pull out the insertion rod from the insertion hole, release the restriction on the vertical movement of the hot pressing head, and then pull out the hot pressing head from the bottom of the mounting frame to complete the disassembly operation of the hot pressing head. The installation and disassembly are convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of a partial structure of the present invention.

[0016] Figure 3 It is a schematic diagram of a partial disassembled structure of the present invention.

[0017] Figure 4 For the present invention Figure 3 The enlarged view of part A in.

[0018] In the figure: 1, operating table; 2, vertical plate; 3, first fixing plate; 4, sliding rod; 5, first slider; 6, second fixing plate; 7, threaded rod; 8, second slider; 9, through groove; 10, bearing plate; 11, mounting plate; 12, mounting frame; 13, hot pressing head; 14, L-shaped plate; 15, insertion rod; 16, insertion hole; 17, limiting plate; 18, spring; 19, pull rod; 20, guiding rod; 21, bearing; 22, worm; 23, worm gear; 24, handle; 25, support rod; 26, bottom plate; 27, self-locking wheel; 28, electric cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0020] Embodiment: As Figures 1-4 shown, the present utility model provides a hot pressing and sealing device for plastic bags, including an operating table 1. One side of the operating table 1 is fixedly connected with a vertical plate 2. One side of the vertical plate 2 close to the operating table 1 is fixedly connected with two first fixing plates 3. A sliding rod 4 is fixedly connected between the two first fixing plates 3. A first slider 5 is slidably clamped on the outer side of the sliding rod 4. One side of the vertical plate 2 close to the first fixing plate 3 is fixedly connected with two second fixing plates 6. A threaded rod 7 is rotatably connected between the two second fixing plates 6. A second slider 8 is threadedly connected to the outer side of the threaded rod 7. Two symmetrically distributed through slots 9 are opened on one side of the vertical plate 2. Both the first slider 5 and the second slider 8 are slidably clamped in the through slots 9. A bearing plate 10 is arranged on the side of the vertical plate 2 away from the first fixing plate 3. Both the first slider 5 and the second slider 8 are fixedly connected with the bearing plate 10.

[0021] The top end of the operating table 1 is fixedly connected with a mounting plate 11. An electric cylinder 28 is fixedly installed on the top end of the mounting plate 11. The piston rod of the electric cylinder 28 extends into the mounting plate 11 and is fixedly connected with a mounting frame 12. A hot pressing head 13 is movably inserted into the bottom end of the mounting frame 12. Symmetrically distributed L-shaped plates 14 are fixedly connected to one side of the mounting frame 12. A plug rod 15 is arranged inside the L-shaped plate 14. Symmetrically distributed jacks 16 are opened on one side of the hot pressing head 13. The front end of the plug rod 15 is movably inserted into the jacks 16.

[0022] By adopting the above technical solution, through the telescopic movement of the piston rod of the electric cylinder 28, the mounting frame 12 and the hot pressing head 13 are pushed to move vertically, thereby realizing the hot pressing and sealing operation. For the installation of the hot pressing head 13, by movably inserting the top end of the hot pressing head 13 into the bottom end inside the mounting frame 12 and inserting the front end of the plug rod 15 into the inside of the jack 16, the vertical movement of the hot pressing head 13 is limited, and then the installation operation of the hot pressing head 13 is completed.

[0023] A limiting plate 17 is fixedly connected to the outer side of the plug rod 15. A spring 18 is arranged between the side of the limiting plate 17 away from the jack 16 and the L-shaped plate 14. The spring 18 is movably sleeved on the outer side of the plug rod 15.

[0024] By adopting the above technical solution, by arranging the spring 18, it is convenient to reset the limiting plate 17.

[0025] One end of the insertion rod 15 away from the jack 16 extends to one side of the L-shaped plate 14 and is fixedly connected with a pull rod 19.

[0026] By adopting the above technical solution, by pulling the pull rod 19 outwards, it is convenient to complete the unlocking operation.

[0027] The top end of the mounting frame 12 is fixedly connected with symmetrically distributed guide rods 20. Bearings 21 are fixedly installed at the top end of the mounting plate 11 and on both sides of the rotary handle 24. The top ends of the guide rods 20 movably penetrate through the bearings 21.

[0028] By adopting the above technical solution, through the cooperation between the guide rod 20 and the bearing 21, it is convenient to guide the vertical movement of the mounting frame 12, and at the same time improve the... when the mounting frame 12 moves.

[0029] The bottom end of the threaded rod 7 extends to the bottom end of the second fixing plate 6 and is fixedly connected with a worm gear 23. A worm 22 is rotatably connected to one side of the second fixing plate 6 close to the worm gear 23. The worm 22 and the worm gear 23 are meshed. One end of the rotating shaft of the worm 22 extends to one side of the second fixing plate 6 and is fixedly connected with a rotary handle 24.

[0030] By adopting the above technical solution, by rotating the rotary handle 24, the worm 22 is driven to rotate. Utilizing the meshing connection between the worm 22 and the worm gear 23, the worm gear 23 is simultaneously driven to rotate, thereby realizing the adjustment operation of the bearing plate 10.

[0031] Support rods 25 are fixedly connected to the four corners at the bottom end of the operating table 1. A bottom plate 26 is fixedly connected between the bottom ends of the support rods 25. Self-locking wheels 27 are rotatably connected to the four corners at the bottom end of the bottom plate 26.

[0032] By adopting the above technical solution, by setting the support rods 25 and the bottom plate 26, it is convenient to support the equipment more stably. At the same time, by setting the bottom plate 26, it is convenient to move the equipment better, improving the flexibility of the equipment.

[0033] Working principle: When heat-sealing a plastic bag, by placing the plastic bag containing materials on the top end of the bearing plate 10 and rotating the rotary handle 24, the worm 22 is driven to rotate. Utilizing the meshing connection between the worm 22 and the worm gear 23, the worm gear 23 and the threaded rod 7 are simultaneously driven to rotate, thereby driving the second slider 8 to move vertically along the outer side of the threaded rod 7, and at the same time driving the first slider 5 to slide vertically along the outer side of the sliding rod 4, improving the stability of the structure, and further driving the bearing plate 10 to move vertically, adjusting according to the height of the plastic bag containing materials, facilitating the heat-sealing operation of the plastic bag;

[0034] During heat-pressing sealing, the piston rod of the electric cylinder 28 is extended to push the mounting frame 12 and the heat-pressing head 13 downward, so that the heat-pressing head 13 contacts the opening of the plastic bag, thereby realizing the heat-pressing sealing operation;

[0035] When installing the thermal compression head 13, the top end of the thermal compression head 13 is movably inserted into the bottom end of the installation frame 12, and the front end of the insertion rod 15 is inserted into the inside of the socket 16, so as to limit the vertical movement of the thermal compression head 13, and then complete the installation operation of the thermal compression head 13. When disassembling, it is only necessary to pull the pull rod 19 and drive the insertion rod 15 to move synchronously, so that the insertion rod 15 is pulled out from the inside of the socket 16, thereby releasing the restriction on the vertical movement of the thermal compression head 13, and then the thermal compression head 13 is pulled out from the bottom end of the installation frame 12 to complete the disassembly operation of the thermal compression head 13.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A hot-pressing sealing device for plastic bags, comprising an operating table (1), characterized in that: One side of the operating table (1) is fixedly connected with a vertical plate (2). On the side of the vertical plate (2) close to the operating table (1), two first fixing plates (3) are fixedly connected. A sliding rod (4) is fixedly connected between the two first fixing plates (3). A first slider (5) is slidably clamped on the outer side of the sliding rod (4). On the side of the vertical plate (2) close to the first fixing plate (3), two second fixing plates (6) are fixedly connected. A threaded rod (7) is rotatably connected between the two second fixing plates (6). A second slider (8) is threadedly connected to the outer side of the threaded rod (7). Two symmetrically distributed through slots (9) are formed in one side of the vertical plate (2). Both the first slider (5) and the second slider (8) are slidably clamped in the through slots (9). A bearing plate (10) is arranged on the side of the vertical plate (2) away from the first fixing plate (3). Both the first slider (5) and the second slider (8) are fixedly connected to the bearing plate (10).

2. The hot pressing and sealing device for plastic bags according to claim 1, characterized in that, The top of the operating table (1) is fixedly connected with a mounting plate (11). An electric cylinder (28) is fixedly installed on the top of the mounting plate (11). The piston rod of the electric cylinder (28) extends into the mounting plate (11) and is fixedly connected with a mounting frame (12). A hot pressing head (13) is movably inserted at the bottom end of the mounting frame (12). Symmetrically distributed L-shaped plates (14) are fixedly connected to one side of the mounting frame (12). A plug rod (15) is arranged inside the L-shaped plate (14). Symmetrically distributed jacks (16) are formed on one side of the hot pressing head (13). The front end of the plug rod (15) is movably inserted into the jacks (16).

3. The hot pressing and sealing device for plastic bags according to claim 2, wherein, A limiting plate (17) is fixedly connected to the outer side of the plug rod (15). A spring (18) is arranged between the side of the limiting plate (17) away from the jack (16) and the L-shaped plate (14). The spring (18) is movably sleeved on the outer side of the plug rod (15).

4. The hot pressing and sealing device for plastic bags according to claim 2, wherein One end of the plug rod (15) away from the jack (16) extends to one side of the L-shaped plate (14) and is fixedly connected with a pull rod (19).

5. The hot pressing and sealing device for plastic bags according to claim 2, wherein, Symmetrically distributed guide rods (20) are fixedly connected to the top of the mounting frame (12). Bearings (21) are fixedly installed on the top of the mounting plate (11) and on both sides of the rotary handle (24). The top ends of the guide rods (20) movably penetrate through the bearings (21).

6. A hot-pressing sealing device for plastic bags according to claim 1, characterized in that, The bottom end of the threaded rod (7) extends to the bottom end of the second fixing plate (6) and is fixedly connected with a worm gear (23). A worm (22) is rotatably connected to the side of the second fixing plate (6) close to the worm gear (23). The worm (22) and the worm gear (23) are meshed. One end of the rotating shaft of the worm (22) extends to one side of the second fixing plate (6) and is fixedly connected with a rotary handle (24).

7. The hot pressing and sealing device for plastic bags according to claim 1, wherein, Support rods (25) are fixedly connected to the four corners of the bottom end of the operating table (1). A bottom plate (26) is fixedly connected between the bottom ends of the support rods (25). Self-locking wheels (27) are rotatably connected to the four corners of the bottom end of the bottom plate (26).

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