Polyolefin film heat sealing equipment

Abstract

The utility model discloses polyolefin film heat sealing equipment, which relates to the technical field of film heat sealing equipment, and comprises an equipment platform, two support frames are arranged at the upper end of the equipment platform, a discharging frame and a top pedestal are welded between the two support frames, and a hydraulic cylinder is arranged at the upper end of the top pedestal. Two erecting plates are arranged on one sides of the two supporting frames, and an unwinding frame is arranged on one sides of the two erecting plates. The contact guide rollers are rotationally arranged at the position between the two erecting plates through connecting shafts, and the number of the contact guide rollers is four; the lifting frame is arranged at the position between the top pedestal and the discharging frame, a cross beam plate is welded to the center of the top of the lifting frame, and an electric heating plate is fixedly arranged in the lifting frame in an embedded mode. The two films needing heat sealing connection are prone to dislocation, and the heat sealing effect is affected.

Description

Technical Field

[0001] This utility model relates to the technical field of membrane heat sealing equipment, specifically to polyolefin membrane heat sealing equipment. Background Technology

[0002] Polyolefin film is a thin film material made of polyolefin resin. Polyolefin is a type of polymer compound formed by the polymerization of olefin monomers. Polyolefin film is made through processing technology such as extrusion and blow molding. When polyolefin film is heat-sealed, a heat source is provided to heat and melt the edges of the polyolefin film under certain temperature and pressure, and a seal is formed after cooling and solidification.

[0003] For example, the announcement number CN219686726U (titled "A Film-Applying Heat-Sealing Forming Equipment") includes a base, with a frame bolted to the top of the base. A first hydraulic cylinder is embedded in the top of the frame, and the output end of the first hydraulic cylinder extends into the interior of the frame and is fixedly fitted with a mounting base. A heat-sealing seat is provided inside the mounting base, and limit blocks are symmetrically bolted to the top of the heat-sealing seat. Fixed seats are symmetrically bolted to the top of the mounting base, and a rod is slidably connected inside the fixed seat. A return spring is fixedly fitted onto the surface of the rod, and a slot for cooperating with the rod is provided on the surface of the limit blocks. A support plate is bolted to the top of the base, and one side of the support plate... A rotating rod is symmetrically connected via bearings. A connecting plate is provided on the top of the base. A rotating sleeve that works with the rotating rod is symmetrically connected to the side of the connecting plate near the support plate via a rotating shaft. A stepper motor that is bolted to the rotating rod is provided on the top of the base. The stepper motor is fixedly mounted on the support plate by a fixing component. Two rotating rods are mounted on the support plate, which can respectively realize the feeding and rolling of two plastic bag rolls. The installation together can reduce the space occupied. With the use of the rotating sleeve on the connecting plate, it can provide support for the rotation of the rotating rod, reduce the bearing wear force at the connection of the rotating rod, improve durability, and improve the overall practical value.

[0004] The aforementioned heat-sealing equipment lacks an effective guiding mechanism when supplying films for heat-sealing, which can easily lead to misalignment between two films that need to be heat-sealed, affecting the heat-sealing effect. Therefore, we provide polyolefin film heat-sealing equipment. Utility Model Content

[0005] The purpose of this invention is to provide a polyolefin film heat sealing device to solve the problem mentioned in the background art that the existing heat sealing device lacks an effective guiding mechanism when supplying films for heat sealing, which causes two films that need to be heat sealed to be misaligned, thus affecting the heat sealing effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polyolefin film heat sealing device, including a device platform, two support frames are provided at the upper end of the device platform, a feeding frame and a top platform are welded between the two support frames, a hydraulic cylinder is provided at the upper end of the top platform, two mounting plates are provided on one side of the two support frames, and a roll unwinding frame is provided on one side of the two mounting plates.

[0007] Also includes:

[0008] Contact guide rollers are rotatably mounted between the two mounting plates via a connecting shaft, and four contact guide rollers are provided;

[0009] The lifting frame is located between the top platform and the feeding frame, and a crossbeam plate is welded to the top center of the lifting frame. An electric heating plate is embedded and fixed inside the lifting frame.

[0010] A guiding frame is welded to the rear end face of the feeding frame, and one end of the guiding frame is provided with a film inlet port. Two cutting grooves are connected on the upper and lower inner walls of the film inlet port.

[0011] The connecting disc base is welded to one side of the outer wall of the unwinding frame, and one end of each of the two connecting disc bases is provided with an unwinding roller shaft, and one end of each of the two unwinding roller shafts is provided with a limit end plate.

[0012] Preferably, a distribution box is welded to the front outer wall of the feeding frame, and a switch is provided at the upper end of the distribution box. The input and output ends of the switch are electrically connected to the distribution box and the heating plate inside the lifting frame respectively through power lines.

[0013] Preferably, a film-cutting blade is provided above the cutter slot, and an extension connecting rod is welded between the film-cutting blade and the crossbeam plate.

[0014] Preferably, one end of the unwinding roller is provided with a connecting slot, and a magnetic plug is adsorbed and inserted into the inside of the connecting slot. The magnetic plug and the limiting end plate are an integral structure.

[0015] Preferably, an anti-detachment rotating head is welded to the other end of the unwinding roller shaft, and the unwinding roller shaft is rotatably connected to the connecting disc seat through the anti-detachment rotating head.

[0016] Preferably, the mounting plate and the unwinding frame are both integral with the equipment platform, and the spacing between two adjacent contact guide rollers is equal.

[0017] Preferably, the top platform is located above the feeding frame, and the piston rod of the hydraulic cylinder passes through the top platform and is welded to the crossbeam plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention involves attaching two rolls of polyolefin film to be heat-sealed onto two unwinding rollers and fixing them with limiting end plates. The two rolls of polyolefin film are then unwound and pulled out, passing between two contact guide rollers and through the film inlet port inside the film guide frame. The two polyolefin films are then neatly stacked inside the unwinding frame, preventing misalignment and overcoming the problem of existing heat-sealing equipment lacking an effective guiding mechanism, which easily leads to misalignment of the two films to be heat-sealed, affecting the heat-sealing effect. Attached Figure Description

[0020] Figure 1 This is a front view of the structure of the polyolefin film heat sealing equipment of this utility model;

[0021] Figure 2 This is a top view of the structure of the polyolefin film heat sealing equipment of this utility model;

[0022] Figure 3 This is a bottom view of the structure of the polyolefin film heat sealing equipment of this utility model;

[0023] Figure 4 This is a cross-sectional view of the internal structure of the unwinding frame of this utility model;

[0024] In the diagram: 1. Equipment platform; 2. Support frame; 3. Unloading frame; 4. Top platform; 5. Hydraulic cylinder; 6. Crossbeam plate; 7. Distribution box; 8. Switch; 9. Lifting frame; 10. Unloading frame; 11. Unloading roller shaft; 12. Erection plate; 13. Contact guide roller; 14. Film guide frame; 15. Film inlet port; 16. Film cutter; 17. Extension rod; 18. Connecting plate seat; 19. Limiting end plate; 20. Cutter slot; 21. Heating plate; 22. Anti-detachment rotor; 23. Connecting slot; 24. Magnetic plug. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1-4 An embodiment of this utility model provides a polyolefin film heat sealing device, including a device platform 1, two support frames 2 are provided at the upper end of the device platform 1, a feeding frame 3 and a top platform 4 are welded between the two support frames 2, a hydraulic cylinder 5 is provided at the upper end of the top platform 4, two support plates 12 are provided on one side of the two support frames 2, and a roll unwinding frame 10 is provided on one side of the two support plates 12.

[0027] Also includes:

[0028] Contact guide rollers 13 are rotatably mounted between two support plates 12 via a connecting shaft, and four contact guide rollers 13 are provided;

[0029] The lifting frame 9 is located between the top platform 4 and the feeding frame 3, and a crossbeam plate 6 is welded to the center of the top of the lifting frame 9. An electric heating plate 21 is embedded and fixed inside the lifting frame 9.

[0030] The guide frame 14 is welded to the rear end face of the feeding frame 3, and one end of the guide frame 14 is provided with a film inlet port 15. Two cutting grooves 20 are connected on the upper and lower inner walls of the film inlet port 15.

[0031] The connecting plate base 18 is welded to one side of the outer wall of the unwinding frame 10, and each of the two connecting plate bases 18 is provided with an unwinding roller shaft 11 at one end, and each of the two unwinding roller shafts 11 is provided with a limit end plate 19.

[0032] In use, the two rolls of polyolefin film to be heat-sealed are respectively attached to the two unwinding rollers 11 and fixed by the limiting end plate 19. Then, the two rolls of polyolefin film are unwound and pulled out, passing through the position between the two contact guide rollers 13 and through the film inlet port 15 inside the film guide frame 14. Then, the two polyolefin films are neatly stacked inside the feeding frame 3 to avoid misalignment. Next, the switch 8 is pressed to supply power to the electric heating plate 21 inside the lifting frame 9 by the power distribution box 7. After the electric heating plate 21 is powered, it releases heat. Finally, the hydraulic cylinder 5 drives the lifting frame 9 to press down, so that the lifting frame 9 is pressed above the two stacked polyolefin films. The electric heating plate 21 heats and melts the edges of the polyolefin film. As the lifting frame 9 falls, the film cutting knife 16 falls into the inside of the cutting groove 20 to cut off the part of the two polyolefin films that did not enter the feeding frame 3. Finally, after cooling at natural temperature, a polyolefin film plastic bag with three sides sealed is obtained.

[0033] Please see Figure 1 and Figure 3 A distribution box 7 is welded to the front outer wall of the feeding frame 3. A switch 8 is installed at the top of the distribution box 7. The input and output terminals of the switch 8 are electrically connected to the distribution box 7 and the heating plate 21 inside the lifting frame 9 via power lines, respectively. The distribution box 7 welded to the front outer wall of the feeding frame 3 serves to supply power to the heating plate 21. Please refer to [link / reference]. Figure 1 A film-cutting blade 16 is positioned above the cutter slot 20. An extension connecting rod 17 is welded between the film-cutting blade 16 and the crossbeam plate 6. The film-cutting blade 16 positioned above the cutter slot 20 serves to cut the polyolefin film. Please refer to [link / reference]. Figure 4One end of the unwinding roller shaft 11 is provided with a connecting slot 23. A magnetic plug 24 is magnetically inserted into the connecting slot 23. The magnetic plug 24 and the limiting end plate 19 are integrally formed. The connecting slot 23 at one end of the unwinding roller shaft 11 facilitates the magnetic plug 24 at one end of the limiting end plate 19 to be magnetically inserted. Please refer to [link to relevant documentation]. Figure 4 An anti-detachment rotating head 22 is welded to the other end of the unwinding roller shaft 11. The unwinding roller shaft 11 is rotatably connected to the connecting disc seat 18 via the anti-detachment rotating head 22. The anti-detachment rotating head 22 welded to the other end of the unwinding roller shaft 11 assists in the limited movable connection between the unwinding roller shaft 11 and the connecting disc seat 18. Please refer to [link / reference]. Figure 1 The support plate 12 and the unwinding frame 10 are both integral with the equipment platform 1. The spacing between two adjacent contact guide rollers 13 is equal. Please refer to [link / reference]. Figure 1 The top platform 4 is located above the material feeding frame 3, and the piston rod of the hydraulic cylinder 5 passes through the top platform 4 and is welded to the crossbeam plate 6.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A polyolefin film heat sealing equipment, including an equipment platform (1), two support frames (2) are provided at the upper end of the equipment platform (1), a feeding frame (3) and a top seat (4) are welded between the two support frames (2), a hydraulic cylinder (5) is provided at the upper end of the top seat (4), two mounting plates (12) are provided on one side of the two support frames (2), and a roll unwinding frame (10) is provided on one side of the two mounting plates (12); Its features are: Also includes: Contact guide rollers (13) are rotatably mounted between the two mounting plates (12) via a connecting shaft, and four contact guide rollers (13) are provided; The lifting frame (9) is located between the top platform (4) and the feeding frame (3), and a crossbeam plate (6) is welded to the top center of the lifting frame (9). An electric heating plate (21) is embedded and fixed inside the lifting frame (9). A guide frame (14) is welded to the rear end face of the feeding frame (3), and a film inlet port (15) is provided at one end of the guide frame (14). Two cutter slots (20) are connected on the upper and lower inner walls of the film inlet port (15). The connecting plate base (18) is welded to one side of the outer wall of the unwinding frame (10), and one end of each of the two connecting plate bases (18) is provided with an unwinding roller shaft (11), and one end of each of the two unwinding roller shafts (11) is provided with a limit end plate (19).

2. The polyolefin film heat sealing equipment according to claim 1, characterized in that: A distribution box (7) is welded to the outer wall of the front end of the feeding frame (3). A switch (8) is installed at the upper end of the distribution box (7). The input and output ends of the switch (8) are electrically connected to the heating plate (21) inside the distribution box (7) and the lifting frame (9) respectively through power lines.

3. The polyolefin film heat sealing equipment according to claim 1, characterized in that: A cutting blade (16) is provided above the cutting groove (20), and an extension connecting rod (17) is welded between the cutting blade (16) and the crossbeam plate (6).

4. The polyolefin film heat sealing equipment according to claim 1, characterized in that: One end of the unwinding roller (11) is provided with a connecting slot (23), and a magnetic plug (24) is provided inside the connecting slot (23) for adsorption and insertion. The magnetic plug (24) and the limiting end plate (19) are an integral structure.

5. The polyolefin film heat sealing equipment according to claim 1, characterized in that: The other end of the unwinding roller shaft (11) is welded with an anti-detachment rotating head (22), and the unwinding roller shaft (11) is rotatably connected to the connecting plate seat (18) through the anti-detachment rotating head (22).

6. The polyolefin film heat sealing equipment according to claim 1, characterized in that: The mounting plate (12) and the unwinding frame (10) are both integral with the equipment platform (1), and the spacing between two adjacent contact guide rollers (13) is equal.

7. The polyolefin film heat sealing equipment according to claim 1, characterized in that: The top platform (4) is located above the feeding frame (3), and the piston rod of the hydraulic cylinder (5) passes through the top platform (4) and is welded to the crossbeam plate (6).

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