Back velvet glue spraying device for production and processing of environment-friendly water-based abrasive paper

Abstract

The utility model relates to the technical field of abrasive paper production, in particular to a back velvet glue spraying device for producing and processing environment-friendly water-based abrasive paper. The glue supply device mainly comprises a base, a filter plate, a glue supply area, a backflow area, a glue supplementing channel, a backflow channel, a glue scraping chamber, a gear pump, a stirrer, a transmission belt, a glue supply pipe, a glue supply groove, a compression roller, a first guide roller shaft, a second guide roller shaft and a glue scraper, the abrasive paper belt passes through the glue supply groove under the limitation of the compression roller, the first guide roller shaft and the second guide roller shaft, and a lower side face gluing mode is adopted, so that subsequent electrostatic sand planting operation is facilitated; continuous automatic spraying can be achieved, redundant glue liquid is scraped through the glue scraper, the redundant glue liquid falls into the glue scraping chamber, flows into the backflow area through the backflow channel and then enters the glue supply area again after being filtered under the action of the filter screen and the stirrer, and the redundant glue liquid is effectively recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of sandpaper production, in particular to a back velvet glue spraying device for the production and processing of environment-friendly water-based sandpaper. Background Art

[0002] The back velvet glue in the environment-friendly water-based sandpaper plays a crucial role in the functions and uses of the entire sandpaper. Its main functions are reflected in the following aspects: 1) Enhancing the adhesion between the sandpaper and the substrate: As an adhesive between the sandpaper and the substrate, the back velvet glue can effectively attach the sandpaper tightly to the substrate. This adhesion not only ensures the stability of the sandpaper during use but also prevents the sandpaper from falling off under extreme conditions such as high-speed friction or heavy pressure, thus guaranteeing work efficiency and safety. 2) Improving the durability and service life of the sandpaper: The back velvet glue of the environment-friendly water-based sandpaper has good water resistance, wear resistance, and aging resistance. This means that even in a humid, worn, or long-term use environment, the back velvet glue can still maintain stable adhesion, thereby greatly improving the durability and service life of the sandpaper. 3) Ensuring the environmental protection of the sandpaper: With the continuous improvement of environmental awareness, the use of the back velvet glue of the environment-friendly water-based sandpaper has gradually attracted people's attention. Compared with traditional oil-based glues, water-based glues are non-toxic and odorless during use and do not cause pollution to the environment. In addition, water-based glues are easy to clean during use, reducing the generation and treatment cost of wastewater, further reflecting their environmental protection. 4) Optimizing the use experience of the sandpaper: The adhesion of the back velvet glue of the environment-friendly water-based sandpaper is moderate, neither too strong to cause difficulty in peeling the sandpaper nor too weak to cause the sandpaper to fall off during use. This adhesion not only ensures the stability and durability of the sandpaper but also improves the comfort and convenience of users during use.

[0003] The traditional back velvet glue spraying device for the production and processing of environment-friendly water-based sandpaper has deficiencies. One is that its upper side coating method is not conducive to subsequent electrostatic sand planting operations. The other is that it cannot achieve continuous automatic spraying and cannot effectively recycle the excess glue. Therefore, it needs to be optimized and improved. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above problems existing in the traditional technology and provide a back velvet glue spraying device for the production and processing of environment-friendly water-based sandpaper.

[0005] To achieve the above technical purposes and reach the above technical effects, the utility model is realized through the following technical solutions:

[0006] A backing glue spraying device for the production and processing of environmentally friendly water-based sandpaper comprises a base, a glue supply chamber is arranged in the base, the glue supply chamber is divided into a glue supply area and a reflux area by a filter plate, the upper end of the glue supply area is externally connected to a glue supply box through a glue supply channel, the upper end of the reflux area is connected to a glue scraping chamber through a reflux channel, a gear pump is installed in the glue supply area, an agitator is installed in the reflux area, the agitator is connected to the gear pump through a transmission belt; the output end of the gear pump is connected to the glue supply groove through a glue supply hose, a pressure roller is installed at the glue supply groove, a plurality of first guide rollers are installed on the side of the base located at the pressure roller away from the glue scraping chamber, a plurality of second guide rollers are installed on the side of the base located at the pressure roller close to the glue scraping chamber, and a glue scraper is installed between two adjacent second guide rollers.

[0007] Furthermore, in the above-mentioned environmentally friendly water-based sandpaper production and processing backing glue spraying device, the gear pump includes a pump housing, the lower end of the pump housing is provided with an inlet pipe, the upper end of the pump housing is provided with an outlet pipe, the interior of the pump housing is provided with a driving shaft and a driven shaft, the outer side of the driving shaft is installed with a driving gear, the outer side of the driven shaft is installed with a driven gear, and the driving gear and the driven gear are meshed with each other.

[0008] Furthermore, in the above-mentioned environmentally friendly water-based sandpaper production and processing backing glue spraying device, the agitator includes a stirring shaft, a mounting seat, a stirring blade and a cleaning brush, a mounting seat is fixed to the outer side of the stirring shaft, and a plurality of stirring blades are installed on the outer side of the mounting seat, wherein a cleaning brush is installed on the outer end of at least one stirring blade.

[0009] Furthermore, in the above-mentioned environmentally friendly water-based sandpaper production and processing backing glue spraying device, the filter plate is composed of a vertical plate portion located on the upper layer and an arc-shaped plate portion located on the lower layer, and filter holes are evenly distributed on the arc-shaped plate portion. The axis of the cylinder where the arc-shaped plate portion is located coincides with the axis of the stirring shaft; the cleaning brush of the agitator can prevent and clean the filter holes of the filter plate during the rotation of the stirring shaft.

[0010] Furthermore, in the above-mentioned environmentally friendly water-based sandpaper production and processing backing glue spraying device, a driving pulley is installed at one end of the gear pump's driving shaft that passes through the pump casing and the base, and a driven pulley is installed at one end of the agitator's stirring shaft that passes through the base, and the transmission belt is sleeved on the outside of the driving pulley and the driven pulley.

[0011] Furthermore, in the above-mentioned backing glue spraying device for the production and processing of environmentally friendly water-based sandpaper, the scraper includes a storage box, a slider, a compression spring and a scraper plate. The storage box is provided with a slider for sliding restriction, and the inner side of the slider is connected to the bottom surface of the inner cavity of the storage box through a compression spring. The outer side of the slider is provided with a scraper plate extending from the storage box; the pressing force between the scraper plate and the sandpaper belt in each of the scrapers gradually increases from close to the glue supply slot toward away from the glue supply slot.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model has a reasonable structural design. It mainly consists of a base, a filter plate, a glue supply area, a reflux area, a glue replenishment channel, a reflux channel, a glue scraping chamber, a gear pump, a stirrer, a transmission belt, a glue supply pipe, a glue supply tank, a pressure roller, a first guide roller shaft, a second guide roller shaft, and a glue scraper. Each component cooperates with each other. On the one hand, it uses the gear pump to send the glue liquid in the glue supply area into the glue supply tank through the glue supply pipe. The sandpaper belt passes through the glue supply tank under the restriction of the pressure roller, the first guide roller shaft, and the second guide roller shaft, adopting the glue coating method on the lower side, which is beneficial for subsequent electrostatic sand planting operations. On the other hand, it can achieve continuous automatic spraying, and use the glue scraper to scrape off the excess glue liquid, making it fall into the glue scraping chamber, flow into the reflux area through the reflux channel, and then be filtered under the action of the filter screen and the stirrer and re-enter the glue supply area, realizing the effective recovery of the excess glue liquid.

[0014] Of course, it is not necessary for any product implementing the present utility model to achieve all the above advantages simultaneously. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the structural schematic diagram of the gear pump in the present utility model;

[0018] Figure 3 is the structural schematic diagram of the filter plate in the present utility model;

[0019] Figure 4 is the structural schematic diagram of the stirrer in the present utility model;

[0020] Figure 5 is the structural schematic diagram of the glue scraper in the present utility model;

[0021] In the drawings, the list of components represented by each reference numeral is as follows:

[0022] 1 - Base, 2 - Filter plate, 201 - Vertical plate part, 202 - Arc plate part, 203 - Filter hole, 3 - Glue supply area, 4 - Return flow area, 5 - Glue replenishment channel, 6 - Return flow channel, 7 - Glue scraping chamber, 8 - Gear pump, 801 - Pump housing, 802 - Inlet pipe, 803 - Outlet pipe, 804 - Driving shaft, 805 - Driving gear, 806 - Driven shaft, 807 - Driven gear, 9 - Stirrer, 901 - Stirring shaft, 902 - Mounting seat, 903 - Stirring blade plate, 904 - Cleaning brush, 10 - Transmission belt, 11 - Glue supply pipe, 12 - Glue supply tank, 13 - Pressing roller, 14 - First guide roller shaft, 15 - Second guide roller shaft, 16 - Glue applicator, 161 - Storage box, 162 - Slide block, 163 - Compression spring, 164 - Glue scraping plate. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0024] As Figures 1 - 5 shown, this embodiment is a back - flocking glue spraying device for the production and processing of environmentally friendly water - based sandpaper, including a base 1. A glue supply chamber is provided inside the base 1. The glue supply chamber is separated into a glue supply area 3 and a return flow area 4 by a filter plate 2. The upper end of the glue supply area 3 is externally connected to a glue replenishment tank through a glue replenishment channel 5. The upper end of the return flow area 4 is connected to a glue scraping chamber 7 through a return flow channel 6. A gear pump 8 is installed in the glue supply area 3, and a stirrer 9 is installed in the return flow area 4. The stirrer 9 is drivingly connected to the gear pump 8 through a transmission belt 10. The output end of the gear pump 8 is communicated with a glue supply tank 12 through a glue supply pipe 11. A pressing roller 13 is installed at the glue supply tank 12. A number of first guide roller shafts 14 are installed on the base 1 on the side of the pressing roller 13 away from the glue scraping chamber 7, and a number of second guide roller shafts 15 are installed on the base 1 on the side of the pressing roller 13 close to the glue scraping chamber 7. A glue applicator 16 is installed between two adjacent second guide roller shafts 15.

[0025] In this embodiment, the gear pump 8 includes a pump housing 801. An inlet pipe 802 is provided at the lower end of the pump housing 801, and an outlet pipe 803 is provided at the upper end of the pump housing 801. A driving shaft 804 and a driven shaft 806 are provided inside the pump housing 801. A driving gear 805 is installed on the outer side of the driving shaft 804, and a driven gear 807 is installed on the outer side of the driven shaft 806. The driving gear 805 and the driven gear 807 are meshed with each other.

[0026] In this embodiment, the stirrer 9 includes a stirring shaft 901, a mounting base 902, stirring blade plates 903, and a cleaning brush 904. A mounting base 902 is fixed to the outer side of the stirring shaft 901, and a number of stirring blade plates 903 are installed on the outer side of the mounting base 902. A cleaning brush 904 is installed at the outer end of at least one of the stirring blade plates 903.

[0027] In this embodiment, the filter plate 2 is composed of a vertical plate portion 201 located in the upper layer and an arc plate portion 202 located in the lower layer. Filter holes 203 are evenly distributed on the arc plate portion 202. The axis of the cylinder where the arc plate portion 202 is located coincides with the axis of the stirring shaft 901. During the rotation of the cleaning brush 904 of the stirrer 9 along with the stirring shaft 901, the filter holes 203 of the filter plate 2 can be cleaned to prevent blockage.

[0028] In this embodiment, a driving pulley is installed at one end of the driving shaft 804 of the gear pump 8 passing through the pump housing 801 and the base 1, and a driven pulley is installed at one end of the stirring shaft 901 of the stirrer 9 passing through the base 1. The transmission belt 10 is sleeved on the outer sides of the driving pulley and the driven pulley.

[0029] In this embodiment, the rubber scraper 16 includes a storage box 161, a slider 162, a compression spring 163, and a rubber scraping plate 164. The slider 162 is slidably restricted in the storage box 161. The inner side of the slider 162 is connected to the bottom surface of the inner cavity of the storage box 161 through the compression spring 163. The outer side of the slider 162 is installed with a rubber scraping plate 164 extending out of the storage box 161. The pressing force of the rubber scraping plate 164 in each rubber scraper 16 against the sandpaper belt gradually increases from the direction close to the glue supply groove 12 towards the direction away from the glue supply groove 12.

[0030] A specific application of this embodiment is as follows: This device is mainly composed of a base 1, a filter plate 2, a glue supply area 3, a reflux area 4, a glue replenishment channel 5, a reflux channel 6, a rubber scraping chamber 7, a gear pump 8, a stirrer 9, a transmission belt 10, a glue supply pipe 11, a glue supply groove 12, a pressure roller 13, a first guide roller shaft 14, a second guide roller shaft 15, and a rubber scraper 16. Each component cooperates with each other. On the one hand, it uses the gear pump 8 to send the glue in the glue supply area 3 into the glue supply groove 12 through the glue supply pipe 11. The sandpaper belt passes through the glue supply groove 12 under the restriction of the pressure roller 13, the first guide roller shaft 14, and the second guide roller shaft 15, adopting the method of applying glue on the lower side, which is beneficial for subsequent electrostatic sand planting operations. On the other hand, it can achieve continuous automatic spraying, and use the rubber scraper 16 to scrape off the excess glue, making it fall into the rubber scraping chamber 7, flow into the reflux area 4 through the reflux channel 6, and then be filtered under the action of the filter screen 2 and the stirrer 9 and re-enter the glue supply area 3, realizing the effective recovery of the excess glue.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A backing glue spraying device for the production and processing of environmentally friendly water-based sandpaper, comprising a base, wherein a glue supply chamber is provided in the base, characterized in that: The glue supply chamber is divided into a glue supply area and a reflux area by a filter plate, the upper end of the glue supply area is connected to a glue supply box through a glue supply channel, the upper end of the reflux area is connected to a glue scraping chamber through a reflux channel, a gear pump is installed in the glue supply area, an agitator is installed in the reflux area, and the agitator is connected to the gear pump through a transmission belt; the output end of the gear pump is connected to the glue supply groove through a glue supply hose, a pressure roller is installed at the glue supply groove, a plurality of first guide rollers are installed on the side of the base located at the pressure roller away from the glue scraping chamber, a plurality of second guide rollers are installed on the side of the base located at the pressure roller close to the glue scraping chamber, and a glue scraper is installed between two adjacent second guide rollers.

2. The backing glue spraying device for the production and processing of environmentally friendly water-based sandpaper according to claim 1 is characterized in that: The gear pump includes a pump housing, an inlet pipe is provided at the lower end of the pump housing, an outlet pipe is provided at the upper end of the pump housing, a driving shaft and a driven shaft are provided inside the pump housing, a driving gear is installed on the outer side of the driving shaft, and a driven gear is installed on the outer side of the driven shaft, and the driving gear and the driven gear are meshed with each other.

3. The backing glue spraying device for producing and processing environmentally friendly water-based sandpaper according to claim 2 is characterized in that: The agitator comprises an agitator shaft, a mounting seat, a stirring blade and a cleaning brush. The mounting seat is fixed to the outer side of the agitator shaft, and a plurality of stirring blades are installed on the outer side of the mounting seat, wherein a cleaning brush is installed on the outer end of at least one stirring blade.

4. The backing glue spraying device for the production and processing of environmentally friendly water-based sandpaper according to claim 3 is characterized in that: The filter plate is composed of a vertical plate portion located on the upper layer and an arc-shaped plate portion located on the lower layer. Filter holes are evenly distributed on the arc-shaped plate portion. The axis of the cylinder where the arc-shaped plate portion is located coincides with the axis of the stirring shaft. The cleaning brush of the agitator can prevent and clean the filter holes of the filter plate during the rotation of the stirring shaft.

5. The backing glue spraying device for producing and processing environmentally friendly water-based sandpaper according to claim 4 is characterized in that: A driving pulley is installed at one end of the driving shaft of the gear pump passing through the pump housing and the base, and a driven pulley is installed at one end of the stirring shaft of the stirrer passing through the base, and the transmission belt is sleeved on the outside of the driving pulley and the driven pulley.

6. The backing glue spraying device for producing and processing environmentally friendly water-based sandpaper according to claim 5 is characterized in that: The scraper includes a storage box, a slider, a compression spring and a scraper plate. The storage box is provided with a slider for sliding restriction. The inner side of the slider is connected to the bottom surface of the inner cavity of the storage box through a compression spring. The outer side of the slider is provided with a scraper plate extending from the storage box. The pressing force between the scraper plate and the sandpaper belt in each scraper gradually increases from close to the glue supply slot toward away from the glue supply slot.

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