Film spraying device for dairy product packaging bag production

By adjusting the threaded connection between the screw and the fixed frame, and the coordination of the support spring and the lifting frame, the problem of poor film compaction after coating was solved, achieving efficient compaction and rapid drying of dairy product packaging bags, thus improving production efficiency and quality.

CN224210704UActive Publication Date: 2026-05-08SHENZHEN LIHENG PACKAGING PRODUCTS CO LTD
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Patent Information

Application Number
CN202521152416.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2026-05-08
Estimated Expiration
2035-06-06

AI Technical Summary

Technical Problem

Existing dairy product packaging bag coating equipment has poor film compaction effect after coating, and cannot automatically adjust the pressing distance according to the thickness of the packaging bag, which easily leads to air bubbles or unevenness, affecting production efficiency.

Method used

A coating device for producing dairy product packaging bags was designed. The height of the coating roller is adjusted by adjusting the screw and the threaded connection of the fixed frame. Combined with the support spring and the lifting frame, the coated packaging bag is compacted. A drying component is also provided to work with a fan and a heating box for rapid drying. A temperature sensor ensures the stability of the drying temperature.

Benefits of technology

It improved the quality of the coating, reduced bubbles and unevenness, increased production efficiency, and ensured the drying quality and production efficiency of the packaging bags.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224210704U_ABST
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Abstract

The utility model discloses a film coating device for dairy product packaging bag production, which comprises a supporting table, a conveying belt is mounted at the top of the supporting table in a transmission manner, first vertical plates are mounted on the front side and the rear side of the left end of the top of the supporting table, and film coating rollers are mounted on the inner sides of the first vertical plates. The height of the film spraying roller can be conveniently adjusted through the threaded connection of the adjusting screw rod and the fixing frame, the film spraying device can adapt to packaging materials with different thicknesses, the universality of the device is improved, the film pressing roller can compact packaging bags after the packaging bags are subjected to film spraying through the cooperation of the supporting spring and the lifting frame, the phenomena of bubbles and unevenness are effectively reduced, and the production efficiency is improved. According to the packaging bag film spraying device, the film spraying quality is improved, the drying assembly is matched with the draught fan and the heating box, the air outlet pipe is reasonably arranged, packaging bags subjected to film spraying can be rapidly dried, the production efficiency is improved, meanwhile, the stability of the drying temperature is guaranteed through the arrangement of a temperature sensor, and the drying quality of the packaging bags is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, specifically to a coating device for producing dairy product packaging bags. Background Technology

[0002] In the production process of dairy product packaging bags, the lamination process is a very important step. Lamination can improve the moisture-proof, waterproof, and barrier properties of the packaging bags, thereby ensuring the quality and safety of dairy products during storage and transportation. However, existing dairy product packaging bag lamination equipment has some problems in use. The compaction effect of the film layer after lamination is not good, and it cannot automatically adjust the pressing distance according to the thickness of the packaging bag. It is easy to have air bubbles or unevenness, which affects production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a coating device for the production of dairy product packaging bags, which has the advantage of being able to flatten air bubbles after coating.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coating device for producing dairy product packaging bags, comprising a support platform, a conveyor belt being drivenly mounted on the top of the support platform, first vertical plates being mounted on both the front and rear sides of the left end of the top of the support platform, a coating roller being mounted on the inner side of the first vertical plate, an adjusting frame being rotatably mounted on the end of the coating roller, an adjusting screw being rotatably mounted on the top of the adjusting frame, a fixing frame being fixedly mounted on the top of the first vertical plate, the fixing frame being located above the adjusting frame, and the upper end of the adjusting screw passing through the fixing frame and extending upwards, a top plate being fixedly mounted on the right side of the fixing frame, support springs being welded to both sides of the bottom right end of the top plate, a lifting frame being fixedly mounted on the lower end of the support springs, a pressing roller being rotatably mounted inside the lower end of the lifting frame, and a drying component being mounted at the center of the top of the conveyor belt.

[0005] As a preferred embodiment, a sliding groove is vertically provided on the inner side of the first vertical plate, and a slider is slidably connected inside the sliding groove. The upper end of the slider is connected to the lower end of the adjustment frame.

[0006] As a preferred embodiment, a second vertical plate is welded to the front and rear sides of the right end of the support platform. A limit groove is formed on the inner side of the second vertical plate, and a limit block is slidably connected inside the limit groove. The inner side of the limit block is connected to the lower end of the lifting frame.

[0007] As a preferred embodiment, the top of the drying assembly is connected to a fan via a pipe extending through to the top plate, and a heating chamber is connected to the right side of the fan via a pipe.

[0008] As a preferred embodiment, the drying assembly is a drying heating hood, and positioning plates are fixedly installed on both sides of the top of the drying assembly, and the bent part at the upper end of the positioning plate is connected to the bottom of the top plate by screws.

[0009] As a preferred embodiment, a threaded hole is provided at the center of the top of the fixing frame, and one end of the adjusting screw is located inside the threaded hole and threadedly connected.

[0010] As a preferred embodiment, the bottom of the drying assembly is equipped with air outlet pipes at equal intervals, and the distance between the air outlet pipes and the top of the conveyor belt is relatively small.

[0011] As a preferred embodiment, the drying assembly is equipped with a temperature sensor, and the temperature sensor is connected to the controller signal of the heating chamber.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model allows for convenient adjustment of the height of the coating roller through the threaded connection between the adjusting screw and the fixed frame, adapting to packaging materials of different thicknesses and improving the versatility of the device. Utilizing the cooperation of the support spring and the lifting frame, the pressure roller can compact the packaging bag after coating, effectively reducing air bubbles and unevenness, thus improving coating quality. The coordination of the drying components with the fan and heating box, along with the reasonable arrangement of the air outlet pipe, enables rapid drying of the coated packaging bags, improving production efficiency. Simultaneously, the temperature sensor ensures stable drying temperature, guaranteeing the drying quality of the packaging bags.

[0014] 2. This utility model features a sliding groove vertically opened on the inner side of the first vertical plate, which connects to the adjusting frame in conjunction with the slider; a limiting groove is provided on the inner side of the second vertical plate at the right end of the support platform, which connects to the lifting frame in conjunction with the limiting block. This combination design provides precise guidance for the movement of the adjusting frame and the lifting frame, greatly reducing the shaking and offset during the movement of the components, ensuring the stability and smoothness of the coating roller height adjustment and pressing roller lifting process, and guaranteeing the accuracy of the coating and pressing processes. Attached Figure Description

[0015] Figure 1 This is a first-person perspective structural perspective view of the present invention;

[0016] Figure 2 This is a second-view perspective structural perspective view of the present invention;

[0017] Figure 3 This is a partial structural cross-sectional view of the present invention.

[0018] In the diagram: 1. Support platform; 2. Conveyor belt; 3. First vertical plate; 4. Slide chute; 5. Slider; 6. Coating roller; 7. Adjusting frame; 8. Fixing frame; 9. Adjusting screw; 10. Top plate; 11. Support spring; 12. Pressing roller; 13. Second vertical plate; 14. Limiting groove; 15. Limiting block; 16. Lifting frame; 17. Drying assembly; 18. Fan; 19. Heating box. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0021] Example 1:

[0022] Please see Figure 1 As shown, this utility model provides a coating device for producing dairy product packaging bags, including a support platform 1, a conveyor belt 2 drivenly mounted on the top of the support platform 1, first vertical plates 3 mounted on both the front and rear sides of the left side of the top of the support platform 1, a coating roller 6 mounted on the inner side of the first vertical plate 3, an adjusting frame 7 rotatably mounted on the end of the coating roller 6, an adjusting screw 9 rotatably mounted on the top of the adjusting frame 7, a fixing frame 8 fixedly mounted on the top of the first vertical plate 3, the fixing frame 8 being located above the adjusting frame 7, and the upper end of the adjusting screw 9 passing through the fixing frame 8 and extending upwards, a top plate 10 fixedly mounted on the right side of the fixing frame 8, support springs 11 welded on both sides of the bottom right end of the top plate 10, a lifting frame 16 fixedly mounted on the lower end of the support springs 11, a pressing roller 12 rotatably mounted inside the lower end of the lifting frame 16, and a drying component 17 mounted at the center of the top of the conveyor belt 2.

[0023] This technical solution allows for convenient adjustment of the height of the coating roller 6 via the threaded connection between the adjusting screw 9 and the fixed frame 8, adapting to packaging materials of different thicknesses and improving the versatility of the device. Utilizing the cooperation of the support spring 11 and the lifting frame 16, the pressure roller 12 can compact the packaging bag after coating, effectively reducing air bubbles and unevenness, thus improving coating quality. The drying component 17, in conjunction with the fan 18 and heating box 19, along with the rational arrangement of the air outlet pipe, can quickly dry the coated packaging bags, improving production efficiency. Simultaneously, the temperature sensor ensures stable drying temperature, guaranteeing the drying quality of the packaging bags.

[0024] Example 2:

[0025] Based on Embodiment 1, this utility model is as follows: Figure 2 As shown, a sliding groove 4 is vertically provided on the inner side of the first vertical plate 3, and a slider 5 is slidably connected inside the sliding groove 4. The upper end of the slider 5 is connected to the lower end of the adjusting frame 7. A second vertical plate 13 is welded to the front and rear sides of the right end of the support platform 1. A limiting groove 14 is provided on the inner side of the second vertical plate 13, and a limiting block 15 is slidably connected inside the limiting groove 14. The inner side of the limiting block 15 is connected to the lower end of the lifting frame 16.

[0026] Adopting such Figure 1 The technical solution shown has a vertical groove 4 on the inner side of the first vertical plate 3, which is connected to the adjusting frame 7 in conjunction with the slider 5; the second vertical plate 13 on the right end of the support platform 1 has a limiting groove 14 on the inner side, which is connected to the lifting frame 16 in conjunction with the limiting block 15. This combination design provides precise guidance for the movement of the adjusting frame 7 and the lifting frame 16, greatly reducing the shaking and offset during the movement of the components, ensuring that the height adjustment of the coating roller 6 and the lifting process of the pressing roller 12 are stable and smooth, and ensuring the accuracy of the coating and pressing processes.

[0027] Secondly, in the technical solution, the top of the drying component 17 is connected to the top plate 10 via a pipe and a fan 18 is connected to it. The right side of the fan 18 is connected to the heating box 19 via a pipe. The drying component 17 is a drying heating cover. Positioning plates are fixedly installed on both sides of the top of the drying component 17, and the bent part at the upper end of the positioning plate is connected to the bottom of the top plate 10 by screws.

[0028] Its adoption is as follows Figure 1The technical solution shown has the top of the drying component 17 connected to the fan 18 and the heating box 19 via a pipe. This design creates a stable hot air transmission channel. The fan 18 can efficiently transport the heated air in the heating box 19 to the drying component 17, so that the drying component 17 can quickly obtain sufficient hot air to dry the coated packaging bags. The continuous and stable supply of hot air avoids the problem of slow drying due to insufficient heat, greatly improves production efficiency, and ensures that the dairy product packaging bags can dry quickly after coating, meeting the high-efficiency requirements of industrial production.

[0029] The drying component 17 adopts the form of a drying heating hood, and the top is connected to the top plate 10 with screws through a positioning plate. It is not easy to shake or shift during the operation of the equipment, ensuring the stability of the drying process. At the same time, the screw connection method is easy to disassemble. When the drying component 17 malfunctions or needs cleaning and maintenance, the operator can quickly unscrew the screws to disassemble the drying component 17 for inspection and maintenance, reducing the difficulty and time cost of equipment maintenance.

[0030] Example 3:

[0031] This utility model is as follows Figures 1-3 As shown, a threaded hole is provided at the center of the top of the fixed frame 8, and one end of the adjusting screw 9 is located inside the threaded hole and threadedly connected; air outlet pipes are installed at equal intervals at the bottom of the drying assembly 17, and the distance between the air outlet pipes and the top of the conveyor belt 2 is small; a temperature sensor is installed inside the drying assembly 17, and the temperature sensor is connected to the controller signal of the heating box 19.

[0032] Using the above technical solution, the top of the fixing frame 8 is provided with a threaded hole that cooperates with the adjusting screw 9 to form a precise threaded transmission pair. This design not only realizes the stepless adjustment of the height of the coating roller 6, but also has a self-locking function, which can be locked at any position to avoid height changes caused by vibration during operation.

[0033] The working principle of this utility model is as follows: During operation, the packaging material is conveyed by the conveyor belt 2. First, according to the thickness requirements of the packaging material, the adjusting screw 9 is rotated to adjust the distance between the coating roller 6 and the conveyor belt 2 to obtain a suitable coating thickness. Then, the coating roller 6 performs coating operation on the packaging material. Next, the packaging material enters the drying component 17. The fan 18 sends the hot air generated by the heating box 19 into the drying component 17, and the packaging material is pre-dried through the air outlet pipe at the bottom. The temperature sensor in the drying component 17 monitors the temperature in real time to ensure that the drying process is carried out at a suitable temperature. Finally, the packaging material passes through the pressing roller 12. Under the action of the support spring 11, the pressing roller 12 adapts to packaging materials of different thicknesses and compacts the coated film to ensure that the film adheres tightly to the packaging material.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] 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 the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A coating apparatus for producing dairy product packaging bags, comprising a support platform (1), characterized in that: A conveyor belt (2) is driven to be installed on the top of the support platform (1). A first vertical plate (3) is installed on both the front and rear sides of the left side of the top of the support platform (1). A coating roller (6) is installed on the inner side of the first vertical plate (3). An adjusting frame (7) is rotatably installed at the end of the coating roller (6). An adjusting screw (9) is rotatably installed on the top of the adjusting frame (7). A fixing frame (8) is fixedly installed on the top of the first vertical plate (3). The fixing frame (8) is located above the adjusting frame (7). The upper end of the adjusting screw (9) passes through the fixing frame (8) and extends upward. A top plate (10) is fixedly installed on the right side of the fixing frame (8). Support springs (11) are welded to both sides of the bottom right end of the top plate (10). A lifting frame (16) is fixedly installed on the lower end of the support springs (11). A pressing roller (12) is rotatably installed inside the lower end of the lifting frame (16). A drying component (17) is installed at the center of the top of the conveyor belt (2).

2. The coating apparatus for producing dairy product packaging bags according to claim 1, characterized in that: The inner side of the first vertical plate (3) is provided with a vertical groove (4), and a slider (5) is slidably connected inside the groove (4). The upper end of the slider (5) is connected to the lower end of the adjusting frame (7).

3. The coating apparatus for producing dairy product packaging bags according to claim 1, characterized in that: The support platform (1) has a second vertical plate (13) welded to the front and rear sides of the right end. A limit groove (14) is opened on the inner side of the second vertical plate (13). A limit block (15) is slidably connected inside the limit groove (14). The inner side of the limit block (15) is connected to the lower end of the lifting frame (16).

4. The coating apparatus for producing dairy product packaging bags according to claim 1, characterized in that: The top of the drying assembly (17) is connected to a fan (18) via a pipe extending through to the top plate (10), and a heating box (19) is connected to the right side of the fan (18) via a pipe.

5. The coating apparatus for producing dairy product packaging bags according to claim 1, characterized in that: The drying assembly (17) is a drying heating cover. Positioning plates are fixedly installed on both sides of the top of the drying assembly (17), and the bent part at the upper end of the positioning plate is connected to the bottom of the top plate (10) by screws.

6. The coating apparatus for producing dairy product packaging bags according to claim 1, characterized in that: A threaded hole is provided at the center of the top of the fixing frame (8), and one end of the adjusting screw (9) is located inside the threaded hole and is threadedly connected.

7. The coating apparatus for producing dairy product packaging bags according to claim 1, characterized in that: The bottom of the drying assembly (17) is equipped with air outlet pipes at equal intervals, and the distance between the air outlet pipes and the top of the conveyor belt (2) is relatively small.

8. The coating apparatus for producing dairy product packaging bags according to claim 1, characterized in that: The drying assembly (17) is equipped with a temperature sensor, which is connected to the controller signal of the heating box (19).