Automatic polyurethane glue sprayer

Abstract

The utility model discloses an automatic polyurethane glue sprayer, and belongs to the technical field of glue sprayers. An automatic polyurethane glue sprayer comprises a base, a discharging barrel is fixedly connected to the top of the base, the outer surface of the discharging barrel penetrates through and extends to the inner wall of the discharging barrel to be fixedly connected with a connecting pipe, a stirring and grinding mechanism is arranged on the inner wall of the discharging barrel, and a circular ring block is driven to move under rotation of a rotating rod; according to the polyurethane coating grinding device, the gear and the gear ring are arranged on the grinding roller, so that the grinding roller can revolve and rotate at the same time under the matching action of the gear and the gear ring, inconsistent polyurethane coating particles retained on the filter screen are ground, larger polyurethane coating particles can be reduced under the action of the grinding roller, and the diameters of the particles meet the normal use standard; therefore, unsmooth flowing and blockage of the polyurethane coating in the spraying process can be effectively avoided, meanwhile, the flatness of the surface of the coating can be improved, and the decoration and protection performance of the coating can be improved.

Description

Technical Field

[0001] This application relates to the technical field of glue spraying machines, and particularly relates to a polyurethane automatic glue spraying machine. Background Art

[0002] Polyurethane is a polymer material formed by the polycondensation reaction of polyols and polyisocyanates, with excellent mechanical properties and strong plasticity. It can be made into materials such as plastics, fibers, rubbers, and elastomers, and is widely used in fields such as textiles, construction, aviation, and automobiles. Its soft materials have good stability, its hard materials have excellent sound insulation and heat insulation properties, and its elastomers are wear-resistant and low-temperature resistant. It is an important and indispensable material in modern industries.

[0003] A patent with the publication number CN219923492U discloses an automatic glue spraying machine, including a glue spraying chamber and a compaction chamber. Inside the glue spraying chamber, there are a glue spraying mold and a robotic arm. One end of the robotic arm is equipped with a three-axis stabilization assembly, and at the bottom end of the three-axis stabilization assembly, there is a glue spraying assembly. The glue spraying assembly includes: a glue spraying machine connected to the Z-axis of the three-axis stabilization assembly; a glue inlet pipe arranged at the glue inlet end of the glue spraying machine; a glue spraying head fixedly connected to the glue spraying end of the glue spraying machine. By setting the glue spraying chamber and the compaction chamber, the robotic arm drives the glue spraying machine in the glue spraying chamber to spray glue on the plate body on the glue spraying mold. After spraying glue, the plate body is placed on the compaction lower mold in the compaction chamber to press and bond the sprayed plate body and the felt. While pressing, the glue spraying operation is simultaneously completed in the other glue spraying chamber on the other side, which can greatly improve the glue spraying and bonding efficiency of the plate body and the felt.

[0004] However, the above technical solution has the following defects:

[0005] (1) In the prior art, usually during the long-term placement of polyurethane coatings, they are prone to precipitation under the action of gravity. Since the polyurethane coatings will precipitate during placement, the interior of the polyurethane coatings is uneven and cannot be fully mixed. As a result, when spraying the polyurethane coatings, the spraying effect is poor, which is not convenient for the staff to use.

[0006] (2) At the same time, in the prior art, it is impossible to grind and sort the particle sizes of polyurethane coatings, resulting in uneven particle sizes of the polyurethane coatings. This easily causes difficulties in spraying the polyurethane coatings during the spraying process. Uneven particles may cause poor flow or blockage of the coatings during spraying. At the same time, the uneven distribution of particles will directly affect the quality of the coating, possibly resulting in an uneven coating surface, problems such as poor leveling and uneven color, thereby affecting the decorative and protective properties of the coating. Utility Model Content

[0007] One objective of the present application is to stir and mix the polyurethane coating placed in the feeding bucket, and at the same time grind the relatively large particles of the polyurethane coating to improve the particle uniformity of the polyurethane coating.

[0008] To achieve the above objective, the technical solution adopted in the present application is: a polyurethane automatic glue spraying machine, including a base, a feeding bucket is fixedly connected to the top of the base, a connecting pipe penetrates through the outer surface of the feeding bucket and extends to the inner wall of the feeding bucket and is fixedly connected, one end of the connecting pipe is fixedly connected to a glue spraying gun, the other end of the connecting pipe is fixedly connected to a water pump, a stirring and grinding mechanism is arranged on the inner wall of the feeding bucket, and a vibration mechanism is arranged on the outer surface of the stirring and grinding mechanism.

[0009] Preferably, the stirring and grinding mechanism includes a rotating rod that penetrates through the top of the feeding bucket and extends to the inner wall of the feeding bucket and is rotatably connected, one end of the rotating rod is fixedly connected to a motor fixedly connected to the top of the feeding bucket, an annular groove is opened on the inner wall of the feeding bucket, a toothed ring is fixedly connected to the inner wall of the annular groove, an annular block is fixedly connected to the outer surface of the rotating rod, a round rod is rotatably connected to the inner wall of the annular block, a surface grinding roller is fixedly connected to the outer surface of the round rod, and one end of the round rod away from the annular block is fixedly connected to a gear meshed with the outer surface of the toothed ring.

[0010] Preferably, a filter screen is fixedly connected to the inner wall of the feeding bucket below the toothed ring, the gear is located in the inner cavity of the annular groove, and the filter screen is rotatably connected to the rotating rod.

[0011] Preferably, three stirring blades are fixedly connected to the outer surface of the rotating rod in an annular distribution, and a plurality of round holes are opened on one side of each of the three stirring blades.

[0012] Preferably, a scraping plate is fixedly connected to the outer surface of the annular block, and the bottom of the scraping plate is closely attached to the top of the filter screen.

[0013] Preferably, the vibration mechanism includes a first round block fixedly connected to the outer surface of the rotating rod, a spring is fixedly connected to the top of the first round block, a spherical ball is fixedly connected to the end of the spring away from the first round block, a second round block is fixedly connected to the bottom of the filter screen, a plurality of circular grooves adapted to the diameter of the spherical ball are opened in an annular distribution on the lower part of the second round block, and the second round block is rotatably connected to the rotating rod.

[0014] Preferably, a telescopic rod is arranged inside the spring, and the two ends of the telescopic rod are respectively fixedly connected to the outer surface of the spherical ball and the upper part of the first round block.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows:

[0016] 1 Under the rotation of the rotating rod, the ring block is driven to move, so that the grinding roller can revolve and rotate simultaneously under the cooperation of the gear and the toothed ring, and carry out grinding operations on the polyurethane coating particles that do not meet the requirements on the filter screen, so that the larger polyurethane coating particles become smaller under the action of the grinding roller, making the particle diameter meet the normal use standard. Furthermore, it can effectively avoid the poor flow and blockage of the polyurethane coating during the spraying process, and at the same time improve the flatness of the coating surface, and improve the decorative and protective properties of the coating.

[0017] 2 During the rotation of the rotating rod, the stirring blades are driven to rotate. Since a number of round holes are provided on the stirring blades, the polyurethane coating can be mixed by intersecting through the round holes during the stirring process, improving the mixing effect, further improving the uniformity of the polyurethane coating, and then improving the spraying effect of the polyurethane coating during the spraying process, which is convenient for the staff to use.

[0018] 3 Since the rotating rod drives the first round block to rotate, the spherical ball on the first round block impacts intermittently inside the circular groove on the second round block under the cooperation of the spring and the telescopic rod, causing the filter screen 66 to vibrate. Furthermore, it can effectively prevent the polyurethane coating particles from getting stuck on the filter screen, thus avoiding the blockage of the filter screen, continuously processing the polyurethane coating, and making full use of the polyurethane coating. Description of the Drawings

[0019] Figure 1 Is the overall three-dimensional schematic diagram proposed by the present utility model;

[0020] Figure 2 Is the overall sectional structure schematic diagram proposed by the present utility model;

[0021] Figure 3 Is the sectional structure schematic diagram of the circular groove proposed by the present utility model;

[0022] Figure 4 Is the explosion effect structure schematic diagram of the vibration mechanism proposed by the present utility model;

[0023] Figure 5 Is the explosion effect structure schematic diagram of the stirring and grinding mechanism proposed by the present utility model;

[0024] In the figure: 1, base; 2, feeding bucket; 3, water pump; 4, connecting pipe; 5, spray gun; 6, stirring and grinding mechanism; 61, rotating rod; 62, motor; 63, stirring blade; 64, circular groove; 65, toothed ring; 66, filter screen; 67, ring block; 68, scraper; 69, round rod; 610, grinding roller; 611, round hole; 612, gear; 7, vibration mechanism; 71, first round block; 72, second round block; 73, circular groove; 74, spring; 75, spherical ball; 76, telescopic rod. DETAILED DESCRIPTION

[0025] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0028] The terms "including" and "having" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0029] The prior art has the following defects:

[0030] (1) In the prior art, polyurethane coatings are usually prone to sedimentation under the action of gravity during long-term storage. Since the polyurethane coatings will settle, the interior of the polyurethane coatings will be uneven and cannot be fully mixed, which will result in poor spraying effect during spraying, making it inconvenient for workers to use.

[0031] (2) At the same time, the existing technology is unable to grind and sort the particle size of the polyurethane coating, resulting in uneven particle size of the polyurethane coating, which can easily lead to difficulties in spraying the polyurethane coating. The uneven particles may cause the coating to flow poorly or become clogged during spraying. At the same time, the uneven distribution of particles will directly affect the quality of the coating, which may cause the coating surface to be uneven, resulting in poor leveling, uneven color and other problems, thereby affecting the decorative and protective properties of the coating.

[0032] As an improvement, as Figures 1 to 5 shown, a preferred embodiment of the present application is:

[0033] A polyurethane automatic glue spraying machine, comprising a base 1, a material storage barrel 2 fixedly connected to the top of the base 1, a connecting pipe 4 penetrating through the outer surface of the material storage barrel 2 and extending to the inner wall of the material storage barrel 2, a glue spraying gun 5 fixedly connected to one end of the connecting pipe 4, a water pump 3 fixedly connected to the other end of the connecting pipe 4, a stirring and grinding mechanism 6 arranged on the inner wall of the material storage barrel 2, and a vibration mechanism 7 arranged on the outer surface of the stirring and grinding mechanism 6.

[0034] As Figures 3 to 5 shown, in this embodiment, the stirring and grinding mechanism 6 includes a rotating rod 61 penetrating through the top of the material storage barrel 2 and extending to the inner wall of the material storage barrel 2 and rotatably connected thereto. One end of the rotating rod 61 is fixedly connected to a motor 62 fixedly connected to the top of the material storage barrel 2. An annular groove 64 is formed on the inner wall of the material storage barrel 2, a toothed ring 65 is fixedly connected to the inner wall of the annular groove 64, an annular block 67 is fixedly connected to the outer surface of the rotating rod 61, a round rod 69 is rotatably connected to the inner wall of the annular block 67, a surface grinding roller 610 is fixedly connected to the outer surface of the round rod 69, a gear 612 meshing with the outer surface of the toothed ring 65 is fixedly connected to one end of the round rod 69 away from the annular block 67. A filter screen 66 is fixedly connected to the inner wall of the material storage barrel 2 below the toothed ring 65. The gear 612 is located in the inner cavity of the annular groove 64, and the filter screen 66 is rotatably connected to the rotating rod 61.

[0035] Specifically, under the rotation of the rotating rod 61, the annular block 67 is driven to move, so that the grinding roller 610 can perform revolution and rotation simultaneously under the cooperation of the gear 612 and the toothed ring 65, and grind the polyurethane coating particles that do not meet the requirements and remain on the filter screen 66, so that the larger polyurethane coating particles become smaller under the action of the grinding roller 610, and the particle diameter meets the normal use standard. Thus, it can effectively avoid the poor flow and blockage of the polyurethane coating during the spraying process, and at the same time improve the flatness of the coating surface, and improve the decorative and protective properties of the coating.

[0036] As Figures 3 to 5 shown, in this embodiment, three stirring blades 63 are fixedly connected to the outer surface of the rotating rod 61 in an annular distribution, and a plurality of round holes 611 are formed on one side of each of the three stirring blades 63.

[0037] Specifically, during the rotation of the rotating rod 61, the stirring blades 63 are driven to rotate. Since a plurality of round holes 611 are formed on the stirring blades 63, the polyurethane coating can be mixed by intersecting through the round holes 611 during the stirring process of the stirring blades 63, improving the mixing effect, further improving the uniformity of the polyurethane coating, and thus improving the spraying effect of the polyurethane coating during the spraying process, which is convenient for the staff to use.

[0038] As Figure 5 shown, in this embodiment, a scraper 68 is fixedly connected to the outer surface of the annular block 67, and the bottom of the scraper 68 is in close contact with the top of the filter net 66.

[0039] Specifically, the annular block 67 rotates with the rotating rod 61. Since the bottom of the scraper 68 is in close contact with the top of the filter net 66, the ground polyurethane coating particles remain on the filter net 66. The qualified polyurethane coating particles can fall from the filter net 66 through the scraping of the bottom of the scraper 68, so that the polyurethane coating can be fully utilized and the waste of the polyurethane coating can be avoided.

[0040] As Figure 4 shown, in this embodiment, the vibration mechanism 7 includes a first circular block 71 fixedly connected to the outer surface of the rotating rod 61. A spring 74 is fixedly connected to the top of the first circular block 71. One end of the spring 74 far from the first circular block 71 is fixedly connected to a spherical ball 75. A second circular block 72 is fixedly connected to the bottom of the filter net 66. A plurality of circular grooves 73 adapted to the diameter of the spherical ball 75 are annularly distributed in the lower part of the second circular block 72. The second circular block 72 is rotatably connected to the rotating rod 61. A telescopic rod 76 is arranged inside the spring 74. Both ends of the telescopic rod 76 are fixedly connected to the outer surface of the spherical ball 75 and the upper part of the first circular block 71 respectively.

[0041] Specifically, since the rotating rod 61 drives the first circular block 71 to rotate, the spherical ball 75 on the first circular block 71 impacts intermittently inside the circular groove 73 on the second circular block 72 under the combined action of the spring 74 and the telescopic rod 76, causing the filter net 66 to vibrate. Thus, it can effectively prevent the polyurethane coating particles from getting stuck on the filter net 66, avoid the blockage of the filter net 66, continuously process the polyurethane coating, and fully utilize the polyurethane coating.

[0042] The working principle of this application is as follows:

[0043] Steps of the stirring and grinding mechanism:

[0044] During use, by starting the motor 62, the output end of the motor 62 drives the rotating rod 61 to rotate. Further, the rotating rod 61 can drive the ring block 67 to move, so that the ring block 67 drives the grinding roller 610 on the round rod 69 to rotate. Since the gear 612 and the toothed ring 65 are meshed, while the grinding roller 610 revolves, it can rotate itself, enabling the grinding roller 610 to grind the polyurethane coating with larger particles staying on the filter screen 66. The larger particles are ground into appropriate sizes and fall through the filter screen 66 under the action of gravity. At the same time, during the rotation of the stirring blade 63, the polyurethane coating is fully mixed, thereby improving the uniformity of the polyurethane coating and being pumped into the connecting pipe 4 by the water pump 3 and sprayed out through the glue gun 5 under the pressure provided by the water pump 3;

[0045] Under the rotation of the rotating rod 61, the ring block 67 is driven to move, enabling the grinding roller 610 to revolve and rotate itself under the cooperation of the gear 612 and the toothed ring 65, and grinding the polyurethane coating particles with unqualified particles staying on the filter screen 66. The larger polyurethane coating particles become smaller under the action of the grinding roller 610, making the particle diameter meet the normal use standard. Thus, it can effectively avoid poor flow and blockage of the polyurethane coating during spraying, and at the same time improve the flatness of the coating surface, enhancing the decorative and protective properties of the coating;

[0046] During the rotation of the rotating rod 61, the stirring blade 63 is driven to rotate. Since a number of round holes 611 are provided on the stirring blade 63, during the stirring process of the stirring blade 63, the polyurethane coating can be mixed by intersecting through the round holes 611, improving the mixing effect, further enhancing the uniformity of the polyurethane coating, and then improving the spraying effect of the polyurethane coating during spraying, facilitating the use by the staff;

[0047] The ring block 67 rotates with the rotating rod 61. Since the bottom of the scraping plate 68 is in close contact with the top of the filter screen 66, the polyurethane coating particles after grinding stay on the filter screen 66, and the qualified polyurethane coating particles can be dropped from the filter screen 66 by scraping the bottom of the scraping plate 68, thus making full use of the polyurethane coating and avoiding waste of the polyurethane coating;

[0048] Vibration mechanism steps:

[0049] During the rotation of the rotating rod 61, the first round block 71 will be driven to rotate, causing the telescopic rod 76 on the first round block 71 to drive the spherical ball 75 to rotate. Since the second round block 72 and the filter net 66 are fixedly connected, the spherical ball 75 can intermittently impact the inner wall of the circular groove 73 on the second round block 72 under the compression reaction force of the spring 74, causing the filter net 66 to vibrate. Thus, it can avoid the blockage of the filter net 66 during use. Since the rotating rod 61 drives the first round block 71 to rotate, the spherical ball 75 on the first round block 71 intermittently impacts inside the circular groove 73 on the second round block 72 under the combined action of the spring 74 and the telescopic rod 76, causing the filter net 66 to vibrate. Therefore, it can effectively prevent the polyurethane coating particles from getting stuck on the filter net 66, avoid the blockage of the filter net 66, continuously process the polyurethane coating, and make full use of the polyurethane coating.

[0050] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A polyurethane automatic glue spraying machine, comprising a base (1), the top of the base (1) is fixedly connected to a discharge barrel (2), the outer surface of the discharge barrel (2) penetrates and extends to the inner wall of the discharge barrel (2) and is fixedly connected to a connecting pipe (4), one end of the connecting pipe (4) is fixedly connected to a glue gun (5), and the other end of the connecting pipe (4) is fixedly connected to a water pump (3), characterized in that: The inner wall of the discharge barrel (2) is provided with a stirring and grinding mechanism (6), and the outer surface of the stirring and grinding mechanism (6) is provided with a vibration mechanism (7); The stirring and grinding mechanism (6) is used to stir and grind the polyurethane when it is placed in the discharge barrel (2); The vibration mechanism (7) is used to avoid blockage when stirring and grinding the polyurethane placed in the discharge barrel (2).

2. A polyurethane automatic glue spraying machine as claimed in claim 1, characterized in that: The stirring and grinding mechanism (6) comprises a rotating rod (61) which penetrates the top of the discharge barrel (2) and extends to the inner wall of the discharge barrel (2) and is rotatably connected thereto; one end of the rotating rod (61) is fixedly connected to a motor (62) fixedly connected to the top of the discharge barrel (2); an annular groove (64) is provided on the inner wall of the discharge barrel (2); a gear ring (65) is fixedly connected to the inner wall of the annular groove (64); an annular block (67) is fixedly connected to the outer surface of the rotating rod (61); a round rod (69) is rotatably connected to the inner wall of the annular block (67); a surface grinding roller (610) is fixedly connected to the outer surface of the round rod (69); and a gear (612) meshingly connected to the outer surface of the gear ring (65) is fixedly connected to the end of the round rod (69) away from the annular block (67).

3. A polyurethane automatic glue spraying machine as claimed in claim 2, characterized in that: The inner wall of the discharge barrel (2) is located below the gear ring (65) and is fixedly connected with a filter screen (66); the gear (612) is located in the inner cavity of the annular groove (64); and the filter screen (66) is rotatably connected to the rotating rod (61).

4. A polyurethane automatic glue spraying machine as claimed in claim 2, characterized in that: The outer surface of the rotating rod (61) is annularly distributed and fixedly connected with three stirring blades (63), and one side of the three stirring blades (63) is provided with a plurality of circular holes (611).

5. The polyurethane automatic glue spraying machine according to claim 3, characterized in that: A scraper (68) is fixedly connected to the outer surface of the annular block (67), and the bottom of the scraper (68) is in close contact with the top of the filter screen (66).

6. The polyurethane automatic glue spraying machine according to claim 3, characterized in that: The vibration mechanism (7) comprises a first round block (71) fixedly connected to the outer surface of the rotating rod (61); a spring (74) is fixedly connected to the top of the first round block (71); a ball (75) is fixedly connected to the end of the spring (74) away from the first round block (71); a second round block (72) is fixedly connected to the bottom of the filter screen (66); a plurality of circular grooves (73) matching the diameter of the ball (75) are annularly distributed at the lower part of the second round block (72); and the second round block (72) is rotatably connected to the rotating rod (61).

7. A polyurethane automatic glue spraying machine as claimed in claim 6, characterized in that: A telescopic rod (76) is arranged inside the spring (74), and two ends of the telescopic rod (76) are respectively fixedly connected to the outer surface of the ball (75) and the upper part of the first round block (71).

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