A dry compounder for plastic bag production
By introducing a dust collection box and negative pressure pipe system into the dry laminator, combined with a cleaning roller and a hot air box, the problem of dust on the surface of plastic film affecting the lamination effect is solved, achieving high-quality lamination and printing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI ANTANG FLEXIBLE PACKAGING CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-12
AI Technical Summary
Existing dry laminating machines used in plastic bag production are prone to dust and lint adhering to the plastic film after it comes into contact with air, affecting the lamination effect and causing defects in subsequent printing.
The system employs a combination of a dust collection box, a negative pressure pipe, and an extrusion roller. It uses negative pressure to adsorb dust and lint, and then uses a cleaning roller and a hot air box for cleaning and drying to ensure the surface of the plastic film is clean.
It effectively removes dust and lint from the surface of plastic film, improves lamination quality, prevents printing defects, and ensures good adhesion of subsequent inks.
Smart Images
Figure CN224348539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic bag production technology, and in particular to a dry laminating machine for plastic bag production. Background Technology
[0002] A dry laminator is a machine that uses a dry lamination process to bond different plastic films together to form a composite film. The dry lamination process involves applying adhesive, then heating and venting the adhesive solution to thoroughly dry it before lamination.
[0003] In the prior art, Chinese Patent Publication No. CN218577129U discloses a dry laminating machine for plastic bag production that is easy to clean and disassemble. It includes a workbench set up after plastic bag production to dry the adhesive used for bonding the plastic bags. A laminating machine housing is located on the other side of the top of the workbench along its length. A slot is opened at the front end of the laminating machine housing, and sliding grooves are opened on both sides of the bottom end of the slot. A guide compaction component is provided inside the slot for easy cleaning and disassembly. By pulling a lever, the guide compaction wheel can be quickly disassembled from the laminating machine housing under the action of the sliding rod, allowing for the cleaning of residual adhesive crystals on the guide compaction wheel. After cleaning, the guide compaction wheel can be reinstalled in its original position using the sliding rod to continue the compaction work, preventing residual adhesive from combining with dust in the air, ensuring the cleanliness of the compaction device, and improving the quality of the processed plastic bags.
[0004] However, in actual use, after the plastic film comes into contact with air, dust and lint easily adhere to its surface, making it difficult to clean the surface during lamination. This can affect ink adhesion during subsequent printing, resulting in printing defects. Therefore, improvements are needed. Utility Model Content
[0005] The purpose of this invention is to provide a dry laminating machine for plastic bag production, which avoids affecting the lamination effect of the plastic film, while facilitating subsequent ink printing and preventing defects.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dry laminating machine for producing plastic bags, comprising a laminating box, a dust removal box movably installed on the top of the laminating box, an insertion port on the top of the laminating box, a connecting frame fixedly connected to the bottom of the dust removal box, a first negative pressure pipe and a second negative pressure pipe fixedly connected to the inner wall of the connecting frame respectively, through holes fixedly connected to the outer surfaces of the first negative pressure pipe and the second negative pressure pipe, an extrusion roller provided on the inner wall of the laminating box, a collection pipe fixedly connected to the top of the first negative pressure pipe, and a connecting pipe fixedly connected to the inside of the connecting frame.
[0007] By adopting the above technical solution, when using the equipment, the dust collection box and the laminating box are connected and installed. The connecting frame is inserted into the interior of the laminating box through the socket, so that the gap between the first negative pressure tube and the second negative pressure tube corresponds to the gap of the extrusion roller. Thus, after the plastic film is squeezed and cleaned by friction by the extrusion roller, it enters the space between the first and second negative pressure tubes. The collection tube generates suction, which draws the first negative pressure tube in. With the connection of the connecting tube, the second negative pressure tube works simultaneously, corresponding to the upper and lower surfaces of the plastic film, sucking the dust and lint attached to the surface into the through hole, and then introducing it into the dust collection box by the collection tube. After lamination, the surface of the plastic film is free of dust and lint, avoiding affecting the lamination effect of the plastic film, and at the same time facilitating subsequent ink printing and preventing defects.
[0008] A further feature of this invention is that the two ends of the connecting pipe are fixedly connected to the first negative pressure pipe and the second negative pressure pipe, respectively, and the two ends of the connecting pipe extend into the interior of the first negative pressure pipe and the second negative pressure pipe, respectively.
[0009] By adopting the above technical solution, the connecting pipe plays a connecting role, so that the first negative pressure pipe and the second negative pressure pipe are connected.
[0010] A further feature of this invention is that an mounting plate is fixedly connected to one side of the dust collector, and bolts are threaded onto the inside of the mounting plate.
[0011] By adopting the above technical solution, the mounting plate is fixed to the top of the composite box with bolts, and the dust collection box can be disassembled.
[0012] A further feature of this invention is that a lid is snapped onto the top of the dust collection box, and an air outlet is provided on the top of the lid.
[0013] By adopting the above technical solution, the box cover can be opened, and the air outlet is used for dust removal and exhaust.
[0014] A further feature of this invention is that an exhaust fan is fixedly connected to the bottom of the box cover, and a support rod is fixedly connected to the bottom of the box cover.
[0015] By adopting the above technical solution, the exhaust fan will perform dust extraction after starting.
[0016] A further feature of this invention is that a dust removal net is fixedly connected to the bottom of the support rod, and the number of support rods is four.
[0017] By adopting the above technical solution, the dust removal screen can absorb dust and be removed for cleaning.
[0018] A further feature of this invention is that a cleaning roller is provided inside the composite box, and a soft velvet layer is provided on the outer surface of the cleaning roller.
[0019] By adopting the above technical solution, the cleaning roller cleans the surface of the plastic film by friction, and the soft velvet layer does not damage the plastic film.
[0020] A further feature of this invention is that the number of cleaning rollers is four, and the four cleaning rollers are divided into two groups of two.
[0021] By adopting the above technical solution, two sets of cleaning rollers are used to ensure cleaning effect.
[0022] A further feature of this invention is that a hot air box is fixedly connected to the top of the composite box, and an air inlet is provided on the top of the hot air box.
[0023] By adopting the above technical solution, hot air is delivered into the composite box through the hot air box for drying.
[0024] A further feature of this invention is that a handle is fixedly connected to one side of the dust collection box, and a support platform is fixedly connected to the bottom of the composite box.
[0025] By adopting the above technical solution, the handle facilitates the installation and disassembly of the dust collector box, and the support platform serves as the bottom support.
[0026] The beneficial effects of this utility model are:
[0027] 1. This utility model, through the coordinated arrangement of a composite box, a dust collection box, an inlet, a connecting frame, a first negative pressure pipe, a second negative pressure pipe, a through hole, an extrusion roller, a collection pipe, and a connecting pipe, enables the device to be used by the operator. When the dust collection box is connected to the composite box, the connecting frame is inserted into the composite box through the inlet, aligning the gap between the first and second negative pressure pipes with the gap of the extrusion roller. Thus, after the plastic film is squeezed and cleaned by the extrusion roller, it enters the space between the first and second negative pressure pipes. The collection pipe generates suction, drawing the first negative pressure pipe in. Simultaneously, the second negative pressure pipe works with the connecting pipe, corresponding to the upper and lower surfaces of the plastic film, drawing dust and lint from the surface into the through hole, where it is then collected and introduced into the dust collection box. The resulting composited plastic film is free of dust and lint, preventing any impact on the composite effect and facilitating subsequent ink printing, thus preventing defects.
[0028] 2. This utility model, through the coordinated arrangement of the mounting plate, bolts, box cover, air outlet, exhaust fan, support rod, dust removal screen, cleaning roller, soft fleece layer, hot air box, air inlet, handle, and support platform, enables the device to be used such that, during use, the mounting plate is fixed to the top of the composite box by bolts, the dust removal box can be disassembled, the exhaust fan is started to suck up dust, the dust removal screen absorbs dust and can be removed for cleaning, the cleaning roller rubs and cleans the surface of the plastic film, the soft fleece layer does not damage the plastic film, and the handle facilitates the operation of installing and disassembling the dust removal box. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of this utility model;
[0031] Figure 2 This is a schematic diagram of the dust collector structure of this utility model;
[0032] Figure 3 This is a schematic diagram of the connecting pipe structure of this utility model;
[0033] Figure 4 This is a schematic diagram of the soft fleece layer structure of this utility model.
[0034] In the diagram, 1. Composite box; 2. Dust collection box; 3. Inlet; 4. Connecting frame; 5. First negative pressure pipe; 6. Second negative pressure pipe; 7. Through hole; 8. Extrusion roller; 9. Collection pipe; 10. Connecting pipe; 11. Mounting plate; 12. Bolt; 13. Box cover; 14. Air outlet; 15. Exhaust fan; 16. Support rod; 17. Dust collection screen; 18. Cleaning roller; 19. Soft fleece layer; 20. Hot air box; 21. Air inlet; 22. Handle; 23. Support platform. Detailed Implementation
[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0036] A dry laminating machine for producing plastic bags includes the following embodiments:
[0037] Example 1:
[0038] Reference Figure 1-4 A dry laminating machine for producing plastic bags includes a laminating box 1, a dust collection box 2 movably mounted on the top of the laminating box 1, an inlet 3 on the top of the laminating box 1, a connecting frame 4 fixedly connected to the bottom of the dust collection box 2, a first negative pressure pipe 5 and a second negative pressure pipe 6 fixedly connected to the inner wall of the connecting frame 4 respectively, and through holes 7 fixedly connected to the outer surfaces of the first negative pressure pipe 5 and the second negative pressure pipe 6, an extrusion roller 8 provided on the inner wall of the laminating box 1, a collection pipe 9 fixedly connected to the top of the first negative pressure pipe 5, and a connecting pipe 10 fixedly connected to the inside of the connecting frame 4.
[0039] Specifically, when using the equipment, the dust collection box 2 is connected and installed to the laminating box 1. The connecting frame 4 is inserted into the interior of the laminating box 1 through the socket 3, so that the gap between the first negative pressure pipe 5 and the second negative pressure pipe 6 corresponds to the gap of the extrusion roller 8. Thus, after the plastic film is squeezed by the extrusion roller 8 and cleaned by friction, it enters the space between the first negative pressure pipe 5 and the second negative pressure pipe 6. The collection pipe 9 generates suction, which draws the first negative pressure pipe 5 into the air. With the connection of the connecting pipe 10, the second negative pressure pipe 6 works simultaneously, corresponding to the upper and lower surfaces of the plastic film, sucking the dust and lint attached to the surface into the through hole 7, and then introducing it into the dust collection box 2 by the collection pipe 9. After lamination, the surface of the plastic film is free of dust and lint, avoiding affecting the lamination effect of the plastic film, and at the same time facilitating the subsequent ink printing and preventing defects.
[0040] Example 2:
[0041] Reference Figure 1-4 The two ends of the connecting pipe 10 are fixedly connected to the first negative pressure pipe 5 and the second negative pressure pipe 6, respectively. The two ends of the connecting pipe 10 extend into the interior of the first negative pressure pipe 5 and the second negative pressure pipe 6, respectively. A mounting plate 11 is fixedly connected to one side of the dust collector 2. Bolts 12 are threaded into the interior of the mounting plate 11. A cover 13 is snapped onto the top of the dust collector 2. An air outlet 14 is opened on the top of the cover 13. An exhaust fan 15 is fixedly connected to the bottom of the cover 13. A support rod 16 is fixedly connected to the bottom of the cover 13. A dust removal net 17 is fixedly connected to the bottom of the support rod 16. There are four support rods 16. A cleaning roller 18 is installed inside the composite box 1. A soft velvet layer 19 is installed on the outer surface of the cleaning roller 18. There are four cleaning rollers 18. The four cleaning rollers 18 are divided into two groups. A hot air box 20 is fixedly connected to the top of the composite box 1. An air inlet 21 is opened on the top of the hot air box 20. A handle 22 is fixedly connected to one side of the dust removal box 2. A support platform 23 is fixedly connected to the bottom of the composite box 1.
[0042] Specifically, the connecting pipe 10 serves as a connector, allowing the first negative pressure pipe 5 and the second negative pressure pipe 6 to be connected. The mounting plate 11 is fixed to the top of the composite box 1 by bolts 12. The dust collection box 2 can be disassembled, the box cover 13 can be opened, the air outlet 14 is used for dust collection and exhaust, and the exhaust fan 15 performs dust extraction after starting. The dust collection screen 17 absorbs dust and can be removed for cleaning. The cleaning roller 18 rubs and cleans the surface of the plastic film, and the soft velvet layer 19 does not damage the plastic film. There are two sets of cleaning rollers 18 to ensure the cleaning effect. The hot air box 20 delivers hot air into the composite box 1 for drying. The handle 22 facilitates the operation of the dust collection box 2 during installation and disassembly, and the support platform 23 serves as the bottom support.
[0043] In this invention, during use, the dust collection box 2 is connected and installed to the composite box 1. The connecting bracket 4 is inserted into the interior of the composite box 1 through the insertion port 3, so that the gap between the first negative pressure pipe 5 and the second negative pressure pipe 6 corresponds to the gap of the extrusion roller 8. Thus, after the plastic film is squeezed and cleaned by the friction of the extrusion roller 8, it enters the space between the first negative pressure pipe 5 and the second negative pressure pipe 6. The collection pipe 9 generates suction, thus drawing the first negative pressure pipe 5 in. With the connection of the connecting pipe 10, the second negative pressure pipe 6 works simultaneously, corresponding to the upper and lower surfaces of the plastic film, sucking the dust and lint attached to the surface into the through hole 7, and then introducing it into the dust collection box 2 by the collection pipe 9. After lamination, the surface of the plastic film is free of dust and lint, avoiding affecting the lamination of the plastic film. The device achieves a good combination of properties, facilitates subsequent ink printing, and prevents defects. Through the coordinated arrangement of the mounting plate 11, bolts 12, box cover 13, air outlet 14, exhaust fan 15, support rod 16, dust removal screen 17, cleaning roller 18, soft fleece layer 19, hot air box 20, air inlet 21, handle 22, and support platform 23, the device allows for easy installation and removal of the dust removal box 2. The mounting plate 11 is fixed to the top of the composite box 1 by bolts 12, the dust removal box 2 can be disassembled, the exhaust fan 15 sucks up dust, the dust removal screen 17 absorbs dust and can be removed for cleaning, the cleaning roller 18 rubs and cleans the surface of the plastic film, the soft fleece layer 19 does not damage the plastic film, and the handle 22 facilitates the installation and disassembly of the dust removal box 2.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dry laminating machine for producing plastic bags, comprising a laminating box (1), characterized in that: A dust collector (2) is movably installed on the top of the composite box (1). An insertion port (3) is opened on the top of the composite box (1). A connecting frame (4) is fixedly connected to the bottom of the dust collector (2). A first negative pressure pipe (5) and a second negative pressure pipe (6) are fixedly connected to the inner wall of the connecting frame (4). Through holes (7) are fixedly connected to the outer surfaces of the first negative pressure pipe (5) and the second negative pressure pipe (6). An extrusion roller (8) is provided on the inner wall of the composite box (1). A collection pipe (9) is fixedly connected to the top of the first negative pressure pipe (5). A connecting pipe (10) is fixedly connected inside the connecting frame (4).
2. The dry laminating machine for plastic bag production according to claim 1, characterized in that: The two ends of the connecting pipe (10) are fixedly connected to the first negative pressure pipe (5) and the second negative pressure pipe (6) respectively, and the two ends of the connecting pipe (10) extend into the interior of the first negative pressure pipe (5) and the second negative pressure pipe (6) respectively.
3. The dry laminating machine for plastic bag production according to claim 1, characterized in that: A mounting plate (11) is fixedly connected to one side of the dust collection box (2), and bolts (12) are threaded inside the mounting plate (11).
4. The dry laminating machine for producing plastic bags according to claim 1, characterized in that: The top of the dust collection box (2) is fitted with a box cover (13), and the top of the box cover (13) has an air outlet (14).
5. A dry laminating machine for producing plastic bags according to claim 4, characterized in that: An exhaust fan (15) is fixedly connected to the bottom of the box cover (13), and a support rod (16) is fixedly connected to the bottom of the box cover (13).
6. A dry laminating machine for producing plastic bags according to claim 5, characterized in that: The bottom of the support rod (16) is fixedly connected to a dust removal net (17), and there are four support rods (16).
7. A dry laminating machine for producing plastic bags according to claim 1, characterized in that: The interior of the composite box (1) is provided with a cleaning roller (18), and the outer surface of the cleaning roller (18) is provided with a soft velvet layer (19).
8. A dry laminating machine for producing plastic bags according to claim 7, characterized in that: The number of cleaning rollers (18) is four, and the four cleaning rollers (18) are divided into two groups of two.
9. A dry laminating machine for producing plastic bags according to claim 1, characterized in that: A hot air box (20) is fixedly connected to the top of the composite box (1), and an air inlet (21) is opened on the top of the hot air box (20).
10. A dry laminating machine for producing plastic bags according to claim 1, characterized in that: A handle (22) is fixedly connected to one side of the dust collection box (2), and a support platform (23) is fixedly connected to the bottom of the composite box (1).