A plastic woven bag film laminating device

Abstract

This utility model discloses a plastic woven bag film-coating and pressing device, including a protective box, an unwinding roller, and a rewinding roller. The protective box has strip-shaped grooves on both sides, and slots on both the upper and lower sides of the protective box within the strip-shaped grooves. Insert plates are inserted into the slots, and a dust-blocking brush is fixedly connected to one side of each insert plate. A first partition is fixedly connected inside the protective box, and a groove is formed on one side of the first partition, with a connecting plate engaged within the groove. Six limiting rollers are fixedly connected to both sides of the protective box. Electric push rods are fixedly connected to both sides of the bottom of the protective box, and connecting strips are fixedly connected to the bottom of each electric push rod. Three striking rollers are rotatably connected between two connecting strips. This utility model uses electric push rods inside the protective box to drive the striking rollers to strike the film material and plastic woven bag material, causing dust adhering to the film material and plastic woven bag material to detach. Simultaneously, an air pump is activated, creating negative pressure in the collection frame to draw airflow and dust, which is then drawn into the collection box for centralized dust treatment.

Description

Technical Field

[0001] This utility model relates to the field of plastic woven bag technology, and specifically to a plastic woven bag film-coating and pressing device. Background Technology

[0002] Plastic woven bag lamination is a device used to improve the waterproof and moisture-proof performance of woven bags. It increases the functionality of plastic woven bags by laminating a plastic film onto the surface of the bag. Common plastic woven bags can use double-sided lamination rollers and guide rollers to achieve simultaneous lamination of the upper and lower surfaces of the bag, thereby reducing process time.

[0003] According to Chinese Patent Publication No. CN222959351U, "A Plastic Woven Bag Coating and Pressing Device," the device mainly describes a mechanism that allows for vertical movement by adjusting the rotation of a screw. The screw can press down an elastic lower pressure member, which in turn presses down a lower sliding seat. The sliding seat then drives an upper pressure roller to press down on the lower end roller. A pressure sensor detects the pressure between the upper and lower rollers, thereby controlling the coating pressing force. A sealing plate seals the through-slot of the protective housing to prevent dust from entering. A motor rotates, driving a winding roller to wind up the pressed woven bag.

[0004] By setting a pressure sensor to monitor the pressure between the upper and lower pressure rollers, and then sealing the passageway with a sealing plate, dust can be prevented from entering the interior of the protective box, thus greatly solving the problem of dust sticking during the pressing process of the woven bag.

[0005] However, during the storage, transportation, and placement of plastic woven bag rolls and film rolls on conveyor rollers, environmental dust will adhere to their surfaces. During the unwinding process, slight vibrations will occur, causing the loosely adhered dust to detach. This detached dust will subsequently form a physical isolation layer, hindering the penetration of adhesives or the melting and bonding of hot melt adhesives. This will lead to a decrease in adhesive viscosity, bubbles, or localized glassiness, thus affecting the pressing process. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a plastic woven bag laminating and pressing device to reduce the impact of vibrations during the unwinding process on the plastic woven bag roll and film roll, which can cause dust already adhering to the plastic woven bag roll and film roll to detach and affect the pressing environment.

[0007] The technical solution adopted by this utility model to solve the technical problem is: a plastic woven bag laminating and pressing device, including a protective box, an unwinding roller, and a winding roller. The protective box has strip-shaped grooves on both sides, and slots are provided on both the upper and lower sides of the protective box within the strip-shaped grooves. Insert plates are inserted into the slots, and a dust-blocking brush is fixedly connected to one side of each insert plate. A first partition is fixedly connected inside the protective box, and a groove is provided on one side of the first partition, with a connecting plate engaged within the groove. Six limiting rollers are fixedly connected to both sides inside the protective box. The bottom end of the protective box... Electric push rods are fixedly connected to both sides. Connecting strips are fixedly connected to the bottom of the electric push rods. Three striking rollers are rotatably connected between the two connecting strips. Three guide rollers are rotatably connected to the side of the protective box near the take-up roller. A heat-sealing roller is rotatably connected to one side of the protective box. A first groove is opened on the side of the protective box near the unwind roller. A dustproof net is fixedly connected to the first groove. A second groove is opened on the side of the protective box away from the first groove. A collection box is fixedly connected to the protective box at the second groove. An air pump is fixedly connected to the upper end of the collection box.

[0008] As a preferred technical solution of this utility model, an open groove is provided on one side of the collection box away from the second groove. An open plate is fixedly connected to the open groove by bolts. By setting the open groove and the open plate, it is convenient to clean the dust in a concentrated manner.

[0009] As a preferred technical solution of this utility model, the collection box is fixedly connected to the air pump output end with a dust filter. The dust filter is located on the upper side of the second groove, and one end of the dust filter is in contact with one side of the protective box. By setting the dust filter, the dust carried in the airflow can be reduced from directly contacting the air pump inlet end.

[0010] As a preferred technical solution of this utility model, the bottom four sides of the connecting plate are fixedly connected with limit rods, and springs are sleeved on the limit rods. One side of the springs contacts a support bar, and the support bar is sleeved on the limit rod. Three clamping rollers are rotatably connected between two opposite support bars. By setting the support bars and clamping rollers that provide the limit, the film material and plastic woven bag material can be guided and wound up.

[0011] As a preferred technical solution of this utility model, a second partition is fixedly connected to one side of the protective box. Both the first partition and the second partition are provided with grooves corresponding to the strip grooves. An infrared dust sensor is fixedly connected to the upper end of the protective box. By setting the infrared sensor, the dust concentration between the first partition and the second partition can be monitored, thereby monitoring the amount of dust when the film material and the plastic woven bag material are pressed together.

[0012] This utility model has the following advantages:

[0013] (1) By setting an electric push rod inside the protective box to drive the knocking roller to knock the film material and plastic woven bag material, the dust adhering to the film material and plastic woven bag material is removed. At the same time, the air pump is started to create negative pressure in the collection frame to pull the airflow and dust, which can pull the dust into the collection box for centralized dust treatment.

[0014] (2) By setting up strip grooves, insert plates and dust baffles, the film material and plastic woven bag material can be matched and contacted, reducing the gaps generated when the film material and plastic woven bag material enter the protective box. When the infrared dust sensor detects the dust signal between the first partition and the second partition, the insert plate and dust baffle can be replaced, which can reduce the amount of dust entering the protective box.

[0015] (3) By setting four limit rods, springs, support rods and clamping rollers, and in conjunction with the limit rollers, a structure of folded film material and plastic woven bag material can be formed, increasing the movement path of film material and plastic woven bag material, thereby improving the dust desorption effect of vibrating film material and plastic woven bag material. Attached Figure Description

[0016] Figure 1 This is a front sectional view of a preferred embodiment of the plastic woven bag laminating and pressing device of the present invention;

[0017] Figure 2 This is a three-dimensional sectional view of a plastic woven bag film-coating and pressing device according to a preferred embodiment of the present invention;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of a plastic woven bag film-coating and pressing device according to a preferred embodiment of the present invention;

[0019] Figure 4 This is a side cross-sectional view of a preferred embodiment of the plastic woven bag film pressing device of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Protective box; 2. Unwinding roller; 3. Rewinding roller; 4. Strip groove; 5. Slot; 6. Insert plate; 7. Dust baffle; 8. First partition plate; 9. Connecting plate; 10. Limiting roller; 11. Electric push rod; 12. Connecting strip; 13. Striking roller; 14. Guide roller; 15. Heat sealing roller; 16. First groove; 17. Dustproof net; 18. Second groove; 19. Collection box; 20. Air pump; 21. Opening plate; 22. Dust baffle; 23. Limiting rod; 24. Spring; 25. Support strip; 26. Clamping roller; 27. Second partition plate; 28. Infrared dust sensor. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Please refer to the following: Figure 1-4 The plastic woven bag laminating and pressing device shown includes a protective box 1, an unwinding roller 2, and a rewinding roller 3. The unwinding roller 2 has three sections: the top and bottom sections are for film rolls, and the center section is for plastic woven bag material. The protective box 1 has strip grooves 4 on both sides. Slots 5 are located on both the top and bottom sides of the protective box 1 within the strip grooves 4. Insert plates 6 are inserted into the slots 5. A dust-blocking brush 7 is fixedly connected to one side of the insert plate 6 and can be detached from the side. A first partition 8 is fixedly connected inside the protective box 1. A groove is located on one side of the first partition 8, and a connecting plate 9 is engaged within the groove. The connecting plate 9 is fixedly connected to the protective box 1 by bolts. By removing the bolts, clamping rollers 26 and striking rollers 13 can be removed, facilitating the removal of dust adhering to the surface of the film and plastic woven bag material. Six limiting rollers 10 are fixedly connected to both sides of the protective box 1. Electric pushers are fixedly connected to both sides of the bottom of the protective box 1. The bottom of the rod 11 and the electric push rod 11 are fixedly connected to the connecting strip 12. Three striking rollers 13 are rotatably connected between the two connecting strips 12. Three guide rollers 14 are rotatably connected inside the protective box 1 near the take-up roller 3. The guide rollers 14 are used to guide and limit the film material so that the subsequent heat sealing roller 15 can press it stably. The heat sealing roller 15 is rotatably connected to one side of the protective box 1. The heat sealing roller 15 is heated by an electric heating tube (error control is performed by a PID temperature control module). A first groove 16 is opened on the side of the protective box 1 near the unwind roller 2. A dustproof net 17 is fixedly connected in the first groove 16. A second groove 18 is opened on the side of the protective box 1 away from the first groove 16. A collection box 19 is fixedly connected to the protective box 1 at the second groove 18. An air pump 20 is fixedly connected to the upper end of the collection box 19. The air pump 20 draws gas from the collection box 19 to form a negative pressure traction, thereby drawing airflow and dust from inside the protective box 1.

[0023] The collection box 19 has an open slot on one side away from the second groove 18. The open slot is fixedly connected to an open plate 21 by bolts. By setting the open slot and the open plate 21, it is convenient to centrally process the detached dust.

[0024] The collection box 19 is fixedly connected to the dust filter 22 at the output end of the air pump 20. The dust filter 22 is located on the upper side of the second groove 18. One end of the dust filter 22 is in contact with one side of the protective box 1. Under the action of the traction airflow, the dust will gradually approach the dust filter 22. Then, under the action of gravity, the desorbed dust will gradually fall to the bottom side of the collection box 19.

[0025] Among them, the bottom of the connecting plate 9 is fixedly connected to the four sides of the limiting rod 23. The limiting rod 23 is fitted with a spring 24. One side of the spring 24 contacts the support bar 25. The support bar 25 is fitted on the limiting rod 23. Three clamping rollers 26 are rotatably connected between two opposite support bars 25. By setting the clamping rollers 26 in conjunction with the limiting rollers 10, the movement path of the film material and the plastic woven bag material can be increased, which makes it easier for the striking roller 13 to strike the film material and the plastic woven bag material, which can remove dust. In conjunction with the spring 24, it can provide tightening of the film material.

[0026] The protective box 1 is fixedly connected to a second partition 27 on one side. Both the first partition 8 and the second partition 27 are provided with grooves corresponding to the strip groove 4. An infrared dust sensor 28 is fixedly connected to the upper end of the protective box 1. By setting the infrared dust sensor 28, based on the distance of light scattering, the airborne particles are irradiated by a laser or infrared light source. The photoelectric detector captures the change in light intensity, and after the microprocessor calculates, it transmits the dust concentration data, thereby measuring the dust concentration in the space between the first partition 8 and the second partition 27.

[0027] Working principle: The film material and the plastic woven bag material are placed on the unwinding roller 2 respectively. Then, one end of the film material and the plastic woven bag material is pulled from the strip groove 4 into the protective box 1. After passing through the limiting roller 10, the clamping roller 26, the striking roller 13, the guide roller 14 and the heat sealing roller 15, they are wound to the take-up roller 3. At this time, the clamping roller 26 increases the moving distance of the film material and the plastic woven bag material, and the striking roller 13 provides knocking vibration, so that the dust adhering to the film material and the plastic woven bag material is removed. Then, the air pump 20 is started and the airflow is pulled through the first groove 16 and the second groove 18 into the collection box 19, which also causes the dust to enter the collection box 19. In the future, the dust can be cleaned by removing the open plate 21. At the same time, the space between the first partition 8 and the second partition 27 can be monitored by the infrared dust sensor 28, and the insert plate 6 and the dust baffle 7 can be replaced as needed.

[0028] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0029] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plastic woven bag laminating and pressing device, comprising a protective box (1), an unwinding roller (2), and a rewinding roller (3), characterized in that, The protective box (1) has strip grooves (4) on both sides. The protective box (1) has slots (5) on both the top and bottom sides of the strip grooves (4). A plate (6) is inserted into the slot (5). A dust brush (7) is fixedly connected to one side of the plate (6). A first partition (8) is fixedly connected inside the protective box (1). A groove is opened on one side of the first partition (8) and a connecting plate (9) is snapped into the groove. Six limiting rollers (10) are fixedly connected to both sides inside the protective box (1). Electric push rods (11) are fixedly connected to both sides of the bottom of the protective box (1). A connecting strip (12) is fixedly connected to the bottom of the electric push rod (11). Three striking rollers (13) are rotatably connected between the two connecting strips (12). Three guide rollers (14) are rotatably connected inside the protective box (1) near the take-up roller (3). A heat-sealing roller (15) is rotatably connected to one side of the protective box (1). A first groove (16) is provided on the side of the protective box (1) near the unwinding roller (2). A dustproof net (17) is fixedly connected inside the first groove (16). A second groove (18) is provided on the side of the protective box (1) away from the first groove (16). A collection box (19) is fixedly connected to the protective box (1) at the second groove (18). An air pump (20) is fixedly connected to the upper end of the collection box (19).

2. The plastic woven bag laminating and pressing device as described in claim 1, characterized in that, An open slot is provided on one side of the collection box (19) away from the second groove (18), and an open plate (21) is fixedly connected to the open slot by bolts.

3. The plastic woven bag laminating and pressing device as described in claim 2, characterized in that, The collection box (19) is fixedly connected to the output end of the air pump (20) with a dust filter (22). The dust filter (22) is located on the upper side of the second groove (18), and one end of the dust filter (22) is in contact with one side of the protective box (1).

4. The plastic woven bag laminating and pressing device as described in claim 1, characterized in that, The bottom of the connecting plate (9) is fixedly connected to four sides of the limiting rod (23). A spring (24) is sleeved on the limiting rod (23). One side of the spring (24) contacts a support bar (25). The support bar (25) is sleeved on the limiting rod (23). Three clamping rollers (26) are rotatably connected between two opposite support bars (25).

5. The plastic woven bag laminating and pressing device as described in claim 4, characterized in that, A second partition (27) is fixedly connected to one side of the protective box (1). Both the first partition (8) and the second partition (27) have grooves corresponding to the strip groove (4). An infrared dust sensor (28) is fixedly connected to the upper end of the protective box (1).

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