Glue smearing device for food-grade water-based paper straw
By designing an adjustable scraper mechanism and scraper structure in the food-grade water-based paper straw glue applicator, the problem of excess glue accumulation caused by the fixed position of the paper tape is solved, achieving uniform glue application and extending the life of the scraper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YONGGU CHEM CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-01
AI Technical Summary
In existing food-grade water-based paper straw adhesive application devices, the fixed position of the paper strip causes residual adhesive to accumulate in specific areas of the scraper, affecting the application effect and shortening the scraper's lifespan.
An adjustable glue scraping mechanism was designed, which combines a scraper and an auxiliary limiting structure to ensure that the scraper position changes, avoids the accumulation of excess glue, and removes excess glue from the scraper surface in time to prevent paper tape deviation.
This technology enables uniform application of adhesive to the paper tape, extends the service life of the doctor blade, reduces equipment maintenance costs, and improves production efficiency.
Smart Images

Figure CN224181222U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper straw adhesive coating technology, and in particular to a food-grade water-based paper straw adhesive coating device. Background Technology
[0002] In the production process of food-grade water-based paper straws, glue application is a critical step. Currently, some glue application devices use a method of directly immersing the paper strip into the glue tank and using rollers to apply glue to both sides of the paper strip. After the glue application is completed, two scrapers remove excess glue from the paper strip so that it can proceed to the next process. However, because the position of the paper strip is relatively fixed during the conveying process, the scraper only contacts a specific area of the paper strip and performs the scraping operation. Over time, residual glue will continue to accumulate on this specific working area of the scraper. The accumulation of residual glue not only affects the scraping effect of the scraper, resulting in uneven glue residue on the paper strip and thus affecting the quality of the paper straw, but may also damage the scraper due to the drying and solidification of the residual glue, increasing equipment maintenance costs and downtime. Utility Model Content
[0003] In view of the problems existing in the above and / or existing food-grade water-based paper straw glue application devices, this utility model is proposed.
[0004] Therefore, the problem to be solved by this utility model is that in the paper straw glue application device, the fixed position of the paper tape causes residual glue to accumulate in a certain area of the scraper, which affects the glue application effect and shortens the scraper life.
[0005] To solve the above technical problems, this utility model provides the following technical solution: a food-grade water-based paper straw glue application device, which includes a main component, including a glue tank, a feeding mechanism fixed on one side of the glue tank, and a pressure plate fixed on the inner wall of the glue tank;
[0006] A glue scraping mechanism is located on the glue pool and includes a glue scraping component. An adjusting component is provided on one side of the glue scraping component, and the adjusting component can cooperate with the glue scraping component.
[0007] The adjusting component includes a motor located on the glue tank. A first rotating shaft is provided on one side of the motor. A reciprocating roller is fixed at one end of the first rotating shaft. A sliding block is sleeved on the reciprocating roller. A slider is fixed on the sliding block. The slider slides in the spiral groove on the reciprocating roller.
[0008] In a preferred embodiment of the food-grade water-based paper straw adhesive application device of this utility model, the adhesive scraper includes an upper moving block fixed to one side of the sliding block, a lower moving block is provided on one side of the upper moving block, and a scraper is fixed on both the upper moving block and the lower moving block.
[0009] In a preferred embodiment of the food-grade water-based paper straw adhesive application device of this utility model, a paper strip is provided on one side of the scraper.
[0010] In a preferred embodiment of the food-grade water-based paper straw glue application device of this utility model, a first support plate is fixed on the motor, the first support plate is fixed to the glue tank, a second rotating shaft is fixed on one side of the reciprocating roller, a second support plate is connected to one end of the second rotating shaft by a bearing, and one end of the second support plate is fixed to the glue tank.
[0011] In a preferred embodiment of the food-grade water-based paper straw adhesive application device of this utility model, a spatula is fixed on both the first support plate and the second support plate, and the number of the spatulas is four.
[0012] In a preferred embodiment of the food-grade water-based paper straw adhesive application device of this utility model, the spatula and the scraper are attached together.
[0013] As a preferred embodiment of the food-grade water-based paper straw glue application device of this utility model, the glue scraping mechanism further includes an auxiliary component located on one side of the glue scraping component, including a fixing block fixed to the glue pool, the fixing block having a first moving groove, a squeezing block being provided in the first moving groove, a horizontal plate being provided on one side of the squeezing block, and a baffle being fixed on one side of the horizontal plate.
[0014] In a preferred embodiment of the food-grade water-based paper straw adhesive application device of this utility model, a spring is fixed on one side of the horizontal plate.
[0015] In a preferred embodiment of the food-grade water-based paper straw adhesive application device of this utility model, a force-bearing block is fixed on the upper moving block, and the force-bearing block has a protrusion.
[0016] In a preferred embodiment of the food-grade water-based paper straw adhesive application device of this utility model, a connecting plate is fixed on the upper moving block, and the other end of the connecting plate is fixed to the lower moving block.
[0017] The beneficial effects of this utility model are as follows: the position of the scraper is set to be adjustable, and by changing the scraping position, excess glue is prevented from accumulating in specific areas of the scraper due to continuous work, so that excess glue on the paper tape can be scraped off evenly and stably. A scraper is added so that the excess glue attached to the surface of the scraper can be removed in time during the scraper's translation process, thus extending the service life of the scraper. At the same time, auxiliary parts are provided to prevent the paper tape from being significantly shifted due to the movement of the scraper. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of 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. Among them:
[0019] Figure 1 This is an overall structural diagram of a food-grade water-based paper straw adhesive application device.
[0020] Figure 2 A food-grade water-based paper straw glue application device Figure 1 Enlarged view of the structure at point A in the middle.
[0021] Figure 3 This is a structural diagram of the upper moving plate of a food-grade water-based paper straw adhesive application device.
[0022] Figure 4 A cross-sectional view of the slider structure of a food-grade water-based paper straw adhesive application device.
[0023] Figure 5 This is a structural diagram of the lower moving plate of a food-grade water-based paper straw adhesive application device.
[0024] Figure 6 A cross-sectional view of the extrusion block of a food-grade water-based paper straw adhesive application device. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] 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.
[0028] Example 1
[0029] Reference Figures 1-4This is the first embodiment of the present invention. This embodiment provides a food-grade water-based paper straw adhesive application device. The food-grade water-based paper straw adhesive application device includes a main component 100, including an adhesive tank 101. Adhesive is placed in the adhesive tank 101. A feeding mechanism 102 is fixed on one side of the adhesive tank 101. The feeding mechanism 102 is composed of multiple sets of rollers. It uses friction to drive the paper strip 104 to move into the adhesive tank 101. This is prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle. A pressure plate 103 is fixed on the inner wall of the adhesive tank 101 to ensure that the paper strip 104 can completely enter the adhesive tank 101, thereby completing the adhesive application work.
[0030] The glue scraping mechanism 200 is located on the glue pool 101 and includes a glue scraper 201. The glue scraper 201 is used to scrape off excess glue from the paper tape 104. An adjustment member 202 is provided on one side of the glue scraper 201. The glue scraping position can be adjusted by adjusting the glue scraper 202. The adjustment member 202 can cooperate with the glue scraper 201.
[0031] The adjusting component 202 includes a motor 2021 located on the glue tank 101. A first rotating shaft 2022 is provided on one side of the motor 2021. The first rotating shaft 2022 is movably connected to the motor shaft inside the motor 2021. When the motor 2021 is started, it can drive the first rotating shaft 2022 to rotate. A reciprocating roller 2023 is fixed at one end of the first rotating shaft 2022. The rotation of the first rotating shaft 2022 drives the reciprocating roller 2023 to rotate.
[0032] A sliding block 2024 is fitted onto the reciprocating roller 2023, and a slider 2025 is fixed on the sliding block 2024. The slider 2025 slides in the spiral groove on the reciprocating roller 2023. In the initial state, the sliding block 2024 is located at the center of the reciprocating roller 2023. When the reciprocating roller 2023 starts to rotate, the slider 2025 slides in the spiral groove on the reciprocating roller 2023, so that the sliding block 2024 starts to reciprocate along the reciprocating roller 2023. By adjusting the motor 2021, the sliding block 2024 can complete one cycle of reciprocating motion once the motor 2021 is started. The sliding block 2024 is triggered from the middle position, moves to the two end faces of the reciprocating roller 2023, and then returns to the middle position. The adjustment of the motor 2021 is existing technology, and this solution will not be described in detail.
[0033] Example 2
[0034] Reference Figures 2-5 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0035] Specifically, the adhesive scraper 201 includes an upper moving block 2011 fixed to one side of the sliding block 2024, and a lower moving block 2012 provided on one side of the upper moving block 2011. Both the upper moving block 2011 and the lower moving block 2012 are fixed with a scraper 2013. The scraper 2013 is used to scrape off the excess adhesive on the paper tape 104. The upper moving block 2011 and the lower moving block 2012 provide stable support for the scraper.
[0036] When the motor 2021 starts, it drives the sliding block 2024 to reciprocate. The upper moving block 2011 also moves accordingly, and the lower moving block 2012 moves synchronously, thereby changing the relative position of the paper tape 104 and the doctor blade 2013, and thus changing the glue scraping position.
[0037] The lower moving block 2012 has a through groove 2012-1, through which the scraped excess glue falls into the glue pool 101. At the same time, the lower moving block 2012 also has a guide groove 2012-2, in which a guide post 2015 is inserted. The two ends of the guide post 2015 are fixed to the inner wall of the glue pool 101. The cooperation between the guide groove 2012-2 and the guide post 2015 ensures the stability of the movement of the lower moving block 2012.
[0038] Specifically, a paper strip 104 is provided on one side of the scraper 2013. There are two scrapers 2013, and the paper strip 104 is located between the upper and lower scrapers 2013. The scraper 2013 is slightly in contact with the surface of the paper strip 104, thereby scraping off excess glue from the surface of the paper strip 104. When the scraper 2013 moves, the friction force generated on the paper strip 104 is small. At the same time, the paper strip 104 is positioned by the feeding mechanism 102, and there will also be a corresponding traction mechanism to position the paper strip 104 in the next process. Therefore, the movement of the scraper 2013 will not cause the paper strip 104 to have a large displacement, and will not affect the next process.
[0039] Specifically, a first support plate 2026 is fixed on the motor 2021. The first support plate 2026 is fixed to the glue tank 101 and provides stable support for the motor 2021. A second rotating shaft 2027 is fixed on one side of the reciprocating roller 2023. A bearing connects a second support plate 2028 to one end of the second rotating shaft 2027. One end of the second support plate 2028 is fixed to the glue tank 101 and provides support for the second rotating shaft 2027.
[0040] Specifically, a scraper 2029 is fixed on both the first support plate 2026 and the second support plate 2028. There are four scrapers 2029 in total, with two scrapers 2029 fixed on each support plate.
[0041] Specifically, when the scraper 2029 and the scraper 2013 are attached, and the motor 2021 is started, causing the scraper 2013 to begin reciprocating, the scraper 2029 will move relative to the scraper 2013 because its position is fixed. During the reciprocating movement of the scraper 2013, the scraper 2029 can remove the excess glue accumulated on one side of the scraper 2013, thereby reducing the corrosion and wear of the scraper 2013 by the excess glue, thus extending the service life of the scraper 2013 and ensuring the scraping effect of the scraper 2013, so that the excess glue on the paper tape 104 can be scraped off evenly and stably.
[0042] Example 3
[0043] Reference Figures 1-6 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0044] Specifically, the scraping mechanism 200 also includes an auxiliary component 203 located on one side of the scraping component 201. The auxiliary component 203 is used to prevent the paper tape 104 from deviating too much during the movement of the scraper 2013, which would affect subsequent processing.
[0045] There are two sets of auxiliary components 203, which restrict the movement of the paper tape 104 from both sides. The auxiliary component 203 includes a fixing block 2031 fixed on the glue tank 101. The fixing block 2031 has a first moving groove 2031-1. A pressing block 2032 is provided in the first moving groove 2031-1. One end of the pressing block 2032 is arc-shaped. A horizontal plate 2033 is provided on one side of the pressing block 2032. The fixing block 2031 has a second moving groove 2031-2 in which the horizontal plate 2033 slides. A baffle 2034 is fixed on one side of the horizontal plate 2033. The fixing block 2031 also has a third moving groove 2031-3 in which the baffle 2034 slides. The first moving groove 2031-1, the second moving groove 2031-2 and the third moving groove 2031-3 are interconnected.
[0046] When the extrusion block 2032 moves up and down along the first moving groove 2031-1, it can drive the horizontal plate 2033 and the baffle 2034 to rotate synchronously.
[0047] Specifically, a spring 2035 is fixed on one side of the horizontal plate 2033, and the other side of the spring 2035 is fixed in the second moving groove 2031-2. This spring 2035 applies a continuous pushing force to the horizontal plate 2033, the pressing block 2032, and the baffle 2034, ensuring that the horizontal plate 2033 can be located on both sides of the paper tape 104 without any other external force. This limits the movement of the paper tape 104 and prevents the paper tape 104 from undergoing large displacement, which would affect subsequent processing.
[0048] The horizontal plate 2033 is positioned at a certain distance from the paper tape 104. There are two horizontal plates 2033. The distance between the two horizontal plates 2033 is the range within which the paper tape 104 can move. When applying glue normally, the height of the horizontal plate 2033 is lower than the height of the paper tape 104. This is because the paper tape 104 is positioned by the feeding mechanism 102 and the corresponding traction mechanism in the next process. The paper tape 104 will not deviate significantly because there is no need to limit the movement of the paper tape 104. The height of the horizontal plate 2033 will only rise when the scraper 2013 moves, thus limiting the movement of the paper tape 104.
[0049] Specifically, a force-bearing block 2036 is fixed on the upper moving block 2011. The force-bearing block 2036 has a protrusion 2036-1, which is a symmetrical structure. In the initial state, the sliding block 2024 is located at the center of the reciprocating roller 2023. At this time, the axis of symmetry of the protrusion 2036-1 is coaxial with the center of the extrusion block 2032. The protrusion 2036-1 will apply pressure to the extrusion block 2032, causing the spring 2035 to be squeezed. At this time, the horizontal plate 2033, the extrusion block 2032, and the baffle 2034 are in the lowest position. The horizontal plate 2033 is located away from the paper tape 104 and will not limit the paper tape 104.
[0050] When the starting motor 2021 drives the upper moving block 2011 and the lower moving block 2012 to move, the force block 2036 will move accordingly. The bottom of the squeezing block 2032 will always be in contact with the force block 2036. Through the setting of the protrusion 2036-1, when the upper moving block 2011 moves, the squeezing block 2032 gradually moves upward, causing the baffle 2034 to rise and move to the height of the paper tape 104, finally blocking both sides of the paper tape 104 and limiting the paper tape 104.
[0051] Specifically, a connecting plate 2014 is fixed on the upper moving block 2011, and the other end of the connecting plate 2014 is fixed to the lower moving block 2012. The upper moving block 2011 and the lower moving block 2012 are connected by the connecting plate 2014 so that the two can move synchronously.
[0052] In use, the paper tape 104 is moved into the glue tank 101 by the feeding mechanism 102, and the glue will stick to the surface of the paper tape 104. Then, two scrapers 2013 scrape off the excess glue on both sides of the paper tape 104, and the paper tape 104 will continue to move to the next process.
[0053] After a period of glue application, the motor 2021 is started, driving the first rotating shaft 2022 to rotate, which in turn drives the reciprocating roller 2023 to rotate one cycle. The slider 2025 slides in the spiral groove on the reciprocating roller 2023, causing the sliding block 2024 to begin reciprocating motion along the reciprocating roller 2023. The movement of the sliding block 2024 synchronously drives the upper moving block 2011 and the lower moving block 2012 to move, causing the doctor blade 2013 to move relative to the paper tape 104, thus changing the glue application position. During the movement of the scraper 2013, since the scraper 2029 is in a fixed position, the scraper 2029 will move relative to the scraper 2013. During the reciprocating movement of the scraper 2013, the scraper 2029 can remove the excess glue accumulated on one side of the scraper 2013, thereby reducing the corrosion and wear of the scraper 2013 by the excess glue, thus extending the service life of the scraper 2013 and ensuring the scraping effect of the scraper 2013, so that the excess glue on the paper tape 104 can be scraped off evenly and stably.
[0054] Simultaneously, when the starting motor 2021 drives the upper moving block 2011 and the lower moving block 2012 to move, the force-bearing block 2036 will move accordingly. The bottom of the squeezing block 2032 will always be in contact with the force-bearing block 2036. Through the setting of the protrusion 2036-1, when the upper moving block 2011 moves, the squeezing block 2032 gradually moves upward, causing the baffle 2034 to rise and move towards the height of the paper tape 104, ultimately blocking both sides of the paper tape 104 and limiting the paper tape 104 to prevent the paper tape 104 from having a large displacement that would affect subsequent processing.
[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A food-grade water-based paper straw adhesive application device, characterized in that: include, The main component (100) includes an adhesive tank (101), a feeding mechanism (102) is fixed on one side of the adhesive tank (101), and a pressure plate (103) is fixed on the inner wall of the adhesive tank (101). The glue scraping mechanism (200) is located on the glue pool (101) and includes a glue scraper (201). An adjusting member (202) is provided on one side of the glue scraper (201), and the adjusting member (202) can cooperate with the glue scraper (201). The adjusting component (202) includes a motor (2021) located on the glue tank (101). A first rotating shaft (2022) is provided on one side of the motor (2021). A reciprocating roller (2023) is fixed at one end of the first rotating shaft (2022). A sliding block (2024) is sleeved on the reciprocating roller (2023). A slider (2025) is fixed on the sliding block (2024). The slider (2025) slides in the spiral groove on the reciprocating roller (2023).
2. The food-grade water-based paper straw adhesive application device as described in claim 1, characterized in that: The scraper (201) includes an upper moving block (2011) fixed to one side of the sliding block (2024), and a lower moving block (2012) is provided on one side of the upper moving block (2011). Scrapers (2013) are fixed on both the upper moving block (2011) and the lower moving block (2012).
3. The food-grade water-based paper straw adhesive application device as described in claim 2, characterized in that: A paper strip (104) is provided on one side of the scraper (2013).
4. The food-grade water-based paper straw adhesive application device as described in claim 2 or 3, characterized in that: A first support plate (2026) is fixed on the motor (2021). The first support plate (2026) is fixed to the glue tank (101). A second rotating shaft (2027) is fixed on one side of the reciprocating roller (2023). A second support plate (2028) is connected to one end of the second rotating shaft (2027) by a bearing. One end of the second support plate (2028) is fixed to the glue tank (101).
5. The food-grade water-based paper straw adhesive application device as described in claim 4, characterized in that: Both the first support plate (2026) and the second support plate (2028) are fixed with shovels (2029), and there are four shovels (2029).
6. The food-grade water-based paper straw adhesive application device as described in claim 5, characterized in that: The shovel (2029) is attached to the scraper (2013).
7. The food-grade water-based paper straw adhesive application device as described in claim 5 or 6, characterized in that: The glue scraping mechanism (200) also includes an auxiliary component (203) located on one side of the glue scraping component (201), including a fixing block (2031) fixed on the glue pool (101), the fixing block (2031) having a first moving groove (2031-1), a squeezing block (2032) being provided in the first moving groove (2031-1), a horizontal plate (2033) being provided on one side of the squeezing block (2032), and a baffle (2034) being fixed on one side of the horizontal plate (2033).
8. The food-grade water-based paper straw adhesive application device as described in claim 7, characterized in that: A spring (2035) is fixed to one side of the horizontal plate (2033).
9. The food-grade water-based paper straw adhesive application device as described in claim 8, characterized in that: A force-bearing block (2036) is fixed on the upper moving block (2011), and the force-bearing block (2036) has a protrusion (2036-1).
10. The food-grade water-based paper straw adhesive application device as described in claim 8 or 9, characterized in that: A connecting plate (2014) is fixed on the upper moving block (2011), and the other end of the connecting plate (2014) is fixed to the lower moving block (2012).