Roll coating device of moisture-proof packaging bag coating machine
By using the roller coating device of the moisture-proof packaging bag coating machine, the position of the coating roller is adjusted by the moving mechanism and the rotating motor. Combined with the pressing of the fixed frame and the friction block, the problem of uneven manual spraying is solved, and uniform coating and equipment stability are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-03
AI Technical Summary
In the current production of moisture-proof packaging bags, the manual spraying method results in uneven application of the moisture-proof material, which affects the moisture-proof effect of the packaging bags.
The moisture-proof packaging bag coating machine uses a roller coating device. The moving mechanism and rotating motor drive the rotating gear to adjust the position of the coating roller, and the packaging bag is pressed together by the fixed frame and friction block to ensure uniform coating.
It achieves uniform coating of moisture-proof material, improves the moisture-proof effect of packaging bags, and avoids equipment misalignment and coating wrinkles.
Smart Images

Figure CN224072423U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a roller coating device for a moisture-proof packaging bag coating machine, belonging to the technical field of roller coating devices. Background Technology
[0002] Coating machines are mainly used for surface coating processes of films, paper, etc. This machine coats a roll of substrate with a layer of adhesive, paint or ink with specific functions, and then dries and rewinds it. It adopts a special multi-functional coating head, which can realize various forms of surface coating. The unwinding and rewinding of the coating machine are equipped with a full-speed automatic film splicing mechanism and PLC program tension closed-loop automatic control.
[0003] Chinese Patent Publication No. CN 213825585 U discloses a coating machine for producing medical packaging bags, including a workbench with a paint tank on its upper side. A support frame is fixedly connected to the upper side of the workbench, and a coating mechanism for coating the packaging bags is located inside the support frame. A warning mechanism is also provided on the upper side of the workbench to remind workers to add paint. This utility model has a reasonable structural design, allowing for adjustment of the distance between the second and first rollers, enabling the device to coat packaging bags of different thicknesses, increasing its applicability. A buzzer promptly reminds workers to add paint to the paint tank, ensuring the normal operation of the device and guaranteeing the coating effect on the packaging bags.
[0004] However, when producing moisture-proof packaging bags, it is necessary to coat the surface of the packaging bags with moisture-proof materials. The existing coating method is to process it by manual spraying. When spraying manually, the moisture-proof material is not applied evenly, which affects the moisture-proof effect of the packaging bags.
[0005] To address this, a roller coating device for a moisture-proof packaging bag coating machine is proposed. Utility Model Content
[0006] In view of this, the present invention provides a roller coating device for a moisture-proof packaging bag coating machine to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.
[0007] The technical solution of this utility model is implemented as follows: A moisture-proof packaging bag coating machine roller coating device includes a processing table. The bottom of the processing table is fixedly connected to a support leg, and the top of the processing table is movably connected to a moving mechanism. The moving mechanism includes a moving frame, a screw, a rotating gear, and a rotary gear. The bottom of the moving frame is movably connected to the inside of the processing table. The left side of the screw is movably connected to the inside of the processing table, and the right side of the screw extends through to the right side of the processing table. The left side of the rotating gear is fixedly connected to the right side of the screw, and the surface of the rotary gear meshes with the surface of the rotary gear.
[0008] More preferably, the top of the processing table is provided with a movable groove, and the bottom of the movable frame is movably connected to the inside of the movable groove.
[0009] More preferably, a rotary motor is fixedly connected to the right side of the processing table, and the output end of the rotary motor is fixedly connected to the inside of the rotating gear.
[0010] More preferably, a limiting block is fixedly connected to the right side of the processing table, and the limiting block is sleeved on the surface of the rotary motor.
[0011] More preferably, a telescopic cylinder is fixedly connected to the top of the movable frame, the bottom of the telescopic cylinder extends through to the bottom of the movable frame, a coating roller is fixedly connected to the output end of the telescopic cylinder, and the outer side of the coating roller is movably connected to the inside of the movable frame.
[0012] More preferably, the movable frame is fixedly connected to a limiting groove inside, and the outer side of the coating roller is movably connected to the inside of the limiting groove.
[0013] More preferably, a fixed frame is fixedly connected to the top of the processing table, a movable rod is movably connected inside the fixed frame, a pressure plate is fixedly connected to the bottom of the movable rod, a compression spring is sleeved on the surface of the movable rod, the bottom of the compression spring is fixedly connected to the top of the pressure plate, and the top of the compression spring is fixedly connected to the bottom of the fixed frame.
[0014] More preferably, a friction block is fixedly connected to the bottom of the pressure plate, and the friction block is made of rubber.
[0015] The present invention has the following advantages due to the adoption of the above technical solution:
[0016] I. This utility model uses a moving mechanism where a rotary motor drives a rotating gear to rotate, which in turn drives a screw to rotate, adjusting the position of the moving frame left and right. The packaging bag is then processed by a coating roller. By setting a limit block, the coaxial rotation of the rotary motor is restricted to prevent deviation during rotation, which could damage the equipment.
[0017] II. This utility model uses a fixed frame to pull a moving rod when the packaging bag is laid flat and pressed. The moving rod drives the pressure plate to move, and the packaging bag is pressed by the return force of the compression spring, which prevents wrinkles from occurring during coating and thus prevents uneven coating. By setting friction blocks, the friction force on the surface of the packaging bag is increased during pressing.
[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional front view structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the processing table of this utility model;
[0022] Figure 3 This is a top view of the processing table of this utility model.
[0023] Figure 4 This is a schematic diagram of the structure of the mobile frame of this utility model;
[0024] Figure 5 This is a cross-sectional structural schematic diagram of the mobile frame of this utility model;
[0025] Figure 6 This utility model Figure 4 A magnified structural diagram of part A in the middle.
[0026] Reference numerals in the attached drawings: 1. Processing table; 2. Support leg; 3. Moving mechanism; 301. Moving frame; 302. Screw; 303. Rotary gear; 304. Rotating gear; 4. Moving groove; 5. Rotary motor; 6. Limiting block; 7. Telescopic cylinder; 8. Coating roller; 9. Limiting groove; 10. Fixed frame; 11. Moving rod; 12. Pressure plate; 13. Compression spring; 14. Wiping block. Detailed Implementation
[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0029] Example 1
[0030] like Figure 1-4 As shown, this utility model embodiment provides a roller coating device for a moisture-proof packaging bag coating machine, including a processing table 1. A support leg 2 is fixedly connected to the bottom of the processing table 1, and a moving mechanism 3 is movably connected to the top of the processing table 1. The moving mechanism 3 includes a moving frame 301, a screw 302, a rotating gear 303, and a rotating gear 304. The bottom of the moving frame 301 is movably connected to the interior of the processing table 1. The left side of the screw 302 is movably connected to the interior of the processing table 1, and the right side of the screw 302 extends through to the right side of the processing table 1. The left side of the rotating gear 303 is fixedly connected to the right side of the screw 302. The surface of the rotating gear 304 meshes with the surface of the rotating gear 303. The top of the processing table 1 is open... A movable groove 4 is provided, and the bottom of the movable frame 301 is movably connected to the inside of the movable groove 4. A rotary motor 5 is fixedly connected to the right side of the processing table 1, and the output end of the rotary motor 5 is fixedly connected to the inside of the rotating gear 304. A limiting block 6 is fixedly connected to the right side of the processing table 1, and the limiting block 6 is sleeved on the surface of the rotary motor 5. A telescopic cylinder 7 is fixedly connected to the top of the movable frame 301, and the bottom of the telescopic cylinder 7 extends through to the bottom of the movable frame 301. A coating roller 8 is fixedly connected to the output end of the telescopic cylinder 7, and the outer side of the coating roller 8 is movably connected to the inside of the movable frame 301. A limiting groove 9 is fixedly connected to the inside of the movable frame 301, and the outer side of the coating roller 8 is movably connected to the inside of the limiting groove 9.
[0031] The moving mechanism 3 drives the rotary motor 5 to rotate the rotary gear 304, which in turn drives the rotary gear 303 to rotate. The rotary gear 303 then drives the screw 302 to rotate, thus adjusting the position of the moving frame 301 by moving it left and right. The coating roller 8 processes the packaging bag. By setting a limit block 6, the coaxial rotation of the rotary motor is restricted to prevent deviation during rotation, which could damage the equipment.
[0032] Example 2
[0033] like Figure 4-6 As shown, in one embodiment, a fixed frame 10 is fixedly connected to the top of the processing table 1, a movable rod 11 is movably connected inside the fixed frame 10, a pressure plate 12 is fixedly connected to the bottom of the movable rod 11, a compression spring 13 is sleeved on the surface of the movable rod 11, the bottom of the compression spring 13 is fixedly connected to the top of the pressure plate 12, the top of the compression spring 13 is fixedly connected to the bottom of the fixed frame 10, and a friction block 14 is fixedly connected to the bottom of the pressure plate 12. The friction block 14 is made of rubber.
[0034] When the packaging bag is laid flat and pressed by the fixed frame 10, the moving rod 11 is pulled, and the moving rod 11 drives the pressure plate 12 to move. The packaging bag is pressed by the pull force of the compression spring 13 to prevent wrinkles from occurring during coating, which would lead to uneven coating. By setting the friction block 14, the friction force on the surface of the packaging bag is increased during pressing.
[0035] In operation, the following steps are taken: First, the packaging bag is laid on the top of the processing table 1. The moving rod 11 is pulled upward, which drives the pressure plate 12 to move upward. As the pressure plate 12 moves upward, it compresses the compression spring 13. After the packaging bag is laid, the moving rod 11 is released, and the pressure plate 12 is pushed downward by the rebound force of the compression spring 13 to fix the packaging bag. During coating, the rotary motor 5 is started, which drives the rotating gear 304 to rotate. The rotating gear 304 drives the rotating gear 303 to rotate, and the rotating gear 303 drives the screw 302 to rotate. When the screw 302 meshes with the moving frame 301, the moving frame 301 moves left and right. The telescopic cylinder 7 pushes the coating roller 8 downward to coat the packaging bag.
[0036] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A kind of damp-proof packaging bag coating machine roll coating device, including processing table (1), it is characterized by: The bottom of the processing table (1) is fixedly connected with supporting legs (2), the top of the processing table (1) is movably connected with a moving mechanism (3), the moving mechanism (3) comprises a moving frame (301), a screw rod (302), a rotating gear (303) and a rotating gear (304), the bottom of the moving frame (301) is movably connected to the inside of the processing table (1), the left side of the screw rod (302) is movably connected to the inside of the processing table (1), the right side of the screw rod (302) penetrates to the right side of the processing table (1), the left side of the rotating gear (303) is fixedly connected to the right side of the screw rod (302), and the surface of the rotating gear (304) is engaged with the surface of the rotating gear (303).
2. A roll coating device for a moisture-proof packaging bag coating machine according to claim 1, characterized in that: The top of the processing table (1) is provided with a moving groove (4), and the bottom of the moving frame (301) is movably connected to the inside of the moving groove (4).
3. The roll coating device of a moisture-proof packaging bag coating machine according to claim 2, characterized in that: The right side of the processing table (1) is fixedly connected with a rotating motor (5), and the output end of the rotating motor (5) is fixedly connected to the inside of the rotating gear (304).
4. The kind of damp-proof packaging bag coating machine roll coating device according to claim 3, characterized in that: The right side of the processing table (1) is fixedly connected with a limiting block (6), and the limiting block (6) is sleeved on the surface of the rotating motor (5).
5. The kind of damp-proof packaging bag coating machine roll coating device according to claim 2, characterized in that: The top of the moving frame (301) is fixedly connected with a telescopic air cylinder (7), the bottom of the telescopic air cylinder (7) penetrates to the bottom of the moving frame (301), the output end of the telescopic air cylinder (7) is fixedly connected with a coating roller (8), and the outer side of the coating roller (8) is movably connected to the inside of the moving frame (301).
6. A roll coating device for a moisture-proof packaging bag coating machine according to claim 5, characterized in that: The inside of the moving frame (301) is fixedly connected with a limiting groove (9), and the outer side of the coating roller (8) is movably connected to the inside of the limiting groove (9).
7. The roll coating device of a moisture-proof packaging bag coating machine according to claim 4, characterized in that: The top of the processing table (1) is fixedly connected with a fixed frame (10), the inside of the fixed frame (10) is movably connected with a moving rod (11), the bottom of the moving rod (11) is fixedly connected with a pressing plate (12), the surface of the moving rod (11) is sleeved with a compression spring (13), the bottom of the compression spring (13) is fixedly connected to the top of the pressing plate (12), and the top of the compression spring (13) is fixedly connected to the bottom of the fixed frame (10).
8. The roll coating device of a moisture-proof packaging bag coating machine according to claim 7, characterized in that: The bottom of the pressing plate (12) is fixedly connected with a friction block (14), and the material of the friction block (14) is rubber.
Citation Information
Patent Citations
Coating machine for medical packaging bag production
CN213825585U