A filling device for polyurethane adhesive or polyurethane elastomer compositions

By designing filling equipment suitable for polyurethane adhesives or polyurethane elastomer blends, and using a filling head with an internal connector pipe and an external gas nozzle combined with a PLC control system, nitrogen protection throughout the process is achieved, solving the problem of material quality degradation, improving material quality and reducing labor intensity.

CN224530609UActive Publication Date: 2026-07-21CANGZHOU JUNCHI NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CANGZHOU JUNCHI NEW MATERIAL TECH CO LTD
Filing Date
2025-09-19
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the filling process of polyurethane adhesives or polyurethane elastomer assemblies, nitrogen protection is difficult to achieve throughout, leading to a decline in material quality.

Method used

A filling head including an internal connector tube and an external gas head was designed. Combined with a PLC control system, it realizes automatic filling and nitrogen protection throughout the process. The material conveying is controlled by a pneumatic angle seat valve. It has functions such as weight setting and one-button start, reducing the labor intensity of personnel.

Benefits of technology

It achieves full nitrogen protection for polyurethane adhesives or polyurethane elastomer blends, improving material quality, reducing labor intensity, and is suitable for filling operations of various materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of suitable for polyurethane adhesive or polyurethane elastomer combined material filling equipment, including rack, control cabinet and control panel are arranged on the rack, rack is also provided with movable movable plate that can move up and down at its top, filling pipe is vertically arranged on the movable plate, the top of the filling pipe is provided with material conveying hose for conveying finished product material, filling pipe is provided with pneumatic angle seat valve at its lower end, the bottom of pneumatic angle seat valve is provided with filling head.The utility model is transformed to filling head, the filling head after transformation includes inner connector pipe and the outer gas outlet head of outside, the cooperation of the two, so that material can also be sent into nitrogen when filling, so realize whole nitrogen protection in filling process, to better avoid material and air contact, greatly improve the quality of material.
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Description

Technical Field

[0001] This utility model relates to the field of filling equipment technology, specifically to a filling equipment suitable for polyurethane adhesives or polyurethane elastomer mixtures. Background Technology

[0002] After production, polyurethane adhesives or polyurethane elastomer compounds are highly susceptible to reaction with moisture in the air and oxidation by oxygen, both of which degrade material quality. Therefore, during filling, nitrogen gas is first injected into the empty container before the material is added. Sometimes, additional nitrogen is added after the container is full to prevent air from contaminating the material and affecting its quality. However, even after nitrogen is injected, some air inevitably gets mixed into the container during filling. The entire filling process cannot achieve real-time nitrogen protection, thus still affecting the overall quality of the material to some extent. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a filling equipment suitable for polyurethane adhesives or polyurethane elastomer mixtures, thereby solving the aforementioned technical problems.

[0004] The present invention adopts the following technical solution: a filling equipment for polyurethane adhesives or polyurethane elastomers, including a frame, a control cabinet and a control panel on the frame, a movable plate that can move up and down on the top of the frame, a filling pipe vertically arranged on the movable plate, a conveying hose for conveying finished materials arranged at the top of the filling pipe, a pneumatic angle seat valve arranged at the lower end of the filling pipe, and a filling head arranged at the bottom of the pneumatic angle seat valve.

[0005] The filling head includes an inner connector tube connected to the pneumatic angle seat valve. The finished material flows out along the inner connector tube. An overall sealed outlet air head is provided on the outside of the inner connector tube. An air chamber is provided inside the outlet air head. An air inlet connector is provided on one side of the outlet air head. The air inlet connector is connected to a nitrogen tank through an air pipe. Air outlet holes are evenly distributed around the bottom of the outlet air head.

[0006] The nitrogen tank is also equipped with a gas pump and a flow control valve on its gas pipe.

[0007] The control cabinet is equipped with a PLC control system, which programs the material according to its characteristics to achieve automatic and semi-automatic filling. The entire filling equipment has functions such as weight setting, one-button start, deviation correction, quantity accumulation, automatic nitrogen filling, and quantitative stop, which can effectively reduce the labor intensity of personnel.

[0008] The entire filling equipment features a small, lightweight, and modular design, allowing for individual or combined use to meet the needs of different applications.

[0009] The entire filling equipment has low cost, simple assembly, convenient use, easy expansion, and is suitable for filling various materials.

[0010] The pneumatic angle seat valve is connected to the air pump through an air pipe, thereby controlling the start and stop of material conveying in the filling pipe.

[0011] Furthermore, the lower end of the outlet air head is flush with the lower end of the inner connector tube, the upper end of the inner connector tube extends outward from the outlet air head, and the end of the inner connector tube protruding from the outlet air head is sealed and connected to the bottom end of the pneumatic angle seat valve.

[0012] Furthermore, a manual emergency valve is provided on the filling tube above the pneumatic angle seat valve.

[0013] Furthermore, a support is provided at the top of the frame, and a double-rod slide cylinder is provided on the support. The cylinder barrel of the double-rod slide cylinder is fixedly connected to the support, and the piston rod of the double-rod slide cylinder is arranged vertically. The movable plate is provided with connectors at both the upper and lower ends of its back. The upper and lower ends of the piston rod of the double-rod slide cylinder are fixedly connected to the connectors at the upper and lower ends, respectively.

[0014] An air pump is also connected to the cylinder of the double-rod slide cylinder via an air pipe.

[0015] Furthermore, the movable plate is provided with a mounting base at its lower front end, and the filling pipe is fixed at the mounting base.

[0016] Furthermore, the mounting base includes a fixed block that is fixedly connected to the movable plate. The fixed block has a movable block at its end away from the movable plate. Both the fixed block and the movable block have semi-circular clamping grooves at their joints. The two clamping grooves cooperate to form a clamping opening that is compatible with the filling tube. The filling tube has an annular retaining edge at the upper and lower ends of the mounting base, respectively abutting the upper and lower ends of the mounting base. The movable block is connected to the fixed block by a quick-release pin.

[0017] Furthermore, the quick-release pin includes pins disposed on both sides of the clamping groove of the fixed block. The movable block has pin holes on both sides corresponding to its clamping groove, which are adapted to the pins. The length of the pin is the same as the length of the pin holes. A boss is provided at the end of the pin away from the fixed block. The diameter of the boss is smaller than the diameter of the pin. A limiting ring is fitted onto the boss. The length of the limiting ring is the same as the length of the boss. The outer diameter of the limiting ring is the same as the diameter of the pin, and its inner diameter is larger than the diameter of the boss. A pin cap is provided at the end of the boss, which clamps the limiting ring onto the boss. A threaded rod is provided at the end of the pin cap connected to the boss. A threaded hole adapted to the threaded rod is provided at the end of the boss, and the pin cap is threadedly connected to the boss.

[0018] During installation, first place the portion of the filling tube with the annular flange into the clamping groove of the fixed block on the movable plate. Then, align the movable block with the fixed block. The clamping grooves of the movable and fixed blocks engage to tighten the filling tube. Anti-slip treatment can be applied to the inner walls of the two clamping grooves. The pin at the end of the fixed block is inserted entirely into the pin hole of the movable block. When the ends of the movable and fixed blocks are aligned, the portion of the pin end with the limit ring and pin cap protrudes from the other side of the movable block. Then, loosen the pin cap to release the limit ring. At this point, the limit ring will... As the limit ring moves downwards, when its inner wall contacts the outer wall of the boss, one side of the limit ring will extend outwards towards the pin. At this point, the limit ring is eccentric relative to the pin. Then, tighten the pin cap to clamp and fix the eccentric limit ring. Under the restriction of the eccentric limit ring, the movable block cannot be removed, thus completing the installation of the filling tube. This installation method does not require tools, allowing workers to quickly fix the filling tube. It is also extremely convenient to disassemble, making it easy for workers to inspect, maintain, clean, and replace the filling tube and its valves and other equipment.

[0019] Furthermore, a platform is placed on the front side of the frame at a position corresponding to below the filling head.

[0020] Furthermore, a placement frame is provided on the top of the placement platform, and several rotating rollers are evenly distributed in the horizontal direction within the placement frame.

[0021] The empty bucket is placed on the rotating roller. After the material is filled, the bucket can be moved along the rotating roller, eliminating the need for handling and saving time and effort.

[0022] The above-mentioned technical solution of this utility model has the following beneficial effects: By modifying the filling head, the modified filling head includes an inner connector tube and an outer air outlet. The two work together to allow nitrogen gas to be introduced into the container during filling, thus achieving full nitrogen protection during the filling process, thereby better preventing the material from contacting air and greatly improving the quality of the material. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the main plan view structure of an embodiment of this utility model;

[0025] Figure 2 This is a side view of the bracket in an embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional structural diagram of the filling head according to an embodiment of the present utility model;

[0027] Figure 4 This is a top view of the installation cross-section of the fixed block and the movable block in an embodiment of this utility model. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0029] 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. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figure 1-4 As shown, this utility model embodiment provides a filling equipment suitable for polyurethane adhesives or polyurethane elastomer mixtures, including a frame 1, a control cabinet 2 and a control panel 3 on the frame 1, a movable plate 4 that can move up and down on the top of the frame 1, a filling pipe 5 vertically arranged on the movable plate 4, a conveying hose 6 for conveying finished materials arranged at the top of the filling pipe 5, a pneumatic angle seat valve 7 arranged at the lower end of the filling pipe, and a filling head 8 arranged at the bottom of the pneumatic angle seat valve 7.

[0031] The filling head 8 includes an inner connector pipe 9 connected to a pneumatic angle seat valve 7. Finished material flows out along the inner connector pipe 9. An overall sealed outlet air head 10 is provided on the outside of the inner connector pipe 9. An air chamber 11 is provided inside the outlet air head 10. An air inlet connector 12 is provided on one side of the outlet air head 10. The air inlet connector 12 is connected to a nitrogen tank through an air pipe. Air outlet holes 13 are evenly distributed around the bottom of the outlet air head 10.

[0032] The nitrogen tank is also equipped with a gas pump and a flow control valve on its gas pipe.

[0033] The control cabinet 2 is equipped with a PLC control system, which programs the material according to its characteristics to achieve automatic and semi-automatic filling. The entire filling equipment has functions such as weight setting, one-button start, deviation correction, quantity accumulation, automatic nitrogen filling, and quantitative stop, which can effectively reduce the labor intensity of personnel.

[0034] The entire filling equipment features a small, lightweight, and modular design, allowing for individual or combined use to meet the needs of different applications.

[0035] The entire filling equipment has low cost, simple assembly, convenient use, easy expansion, and is suitable for filling various materials.

[0036] The pneumatic angle seat valve 7 is connected to the air pump through an air pipe, thereby controlling the start and stop of the material conveying in the filling pipe 5.

[0037] The lower end of the outlet air head 10 is flush with the lower end of the inner connector tube 9. The upper end of the inner connector tube 9 extends outward from the outlet air head 10. The end of the inner connector tube 9 that protrudes from the outlet air head 10 is sealed to the bottom end of the pneumatic angle seat valve 7.

[0038] A manual emergency valve 14 is installed above the corresponding pneumatic angle seat valve 7 on the filling pipe 5.

[0039] A bracket 15 is installed on the top of the frame 1. A double-rod slide cylinder 16 is installed on the bracket 15. The cylinder of the double-rod slide cylinder 16 is fixedly connected to the bracket 15. The piston rod of the double-rod slide cylinder 16 is arranged vertically. The movable plate 4 has connectors 17 at both the upper and lower ends of its back. The upper and lower ends of the piston rod of the double-rod slide cylinder 16 are fixedly connected to the connectors 17 at the upper and lower ends, respectively.

[0040] An air pump is also connected to the cylinder of the double-rod slide cylinder 16 via an air pipe.

[0041] The movable plate 4 has a mounting base 18 at its lower front end, and the filling pipe 5 is fixed at the mounting base 18.

[0042] Mounting base 18 includes a fixing block 19 fixedly connected to the movable plate 4. The fixing block 19 has a movable block 20 at its end away from the movable plate 4. Both the fixing block 19 and the movable block 20 have semi-circular clamping grooves 21 at their joints. The two clamping grooves 21 cooperate with each other to form a clamping opening that is compatible with the filling tube 5. The filling tube 5 has an annular retaining edge 22 at the corresponding upper and lower ends of the mounting base. The annular retaining edge 22 is respectively attached to the upper and lower ends of the mounting base. The movable block 20 is connected to the fixing block 19 through a quick-install pin 23.

[0043] The quick-release pin 23 includes pins 24 disposed on both sides of the clamping groove 21 of the fixed block 19. The movable block 20 has pin holes on both sides of the clamping groove 21 that are adapted to the pins 24. The length of the pins 24 is the same as the length of the pin holes. A boss 25 is disposed at the end of the pins 24 away from the fixed block 19. The diameter of the boss 25 is smaller than the diameter of the pins 24. A limiting ring 26 is fitted on the boss 25. The length of the limiting ring 26 is the same as the length of the boss 25. The outer diameter of the limiting ring 26 is the same as the diameter of the pins 24 and its inner diameter is larger than the diameter of the boss 25. A pin cap 27 is disposed at the end of the boss 25. The pin cap 27 clamps the limiting ring 26 at the boss 25. A threaded rod 28 is disposed at the end of the pin cap 27 that connects to the boss 25. A threaded hole adapted to the threaded rod 28 is disposed at the end of the boss 25. The pin cap 27 is threadedly connected to the boss 25.

[0044] When installing the filling tube 5, first place the portion of the filling tube 5 with the annular retaining edge 22 into the clamping groove 21 of the fixing block 19 on the movable plate 4. Then, align the movable block 20 with the fixing block 19. The movable block 20 and the clamping groove 21 of the fixing block 19 cooperate to clamp the filling tube 5. The inner walls of the two clamping grooves 21 can be treated with anti-slip treatment. The pin 24 at the end of the fixing block 19 is inserted into the pin hole of the movable block 20. When the ends of the movable block 20 and the fixing block 19 are aligned, the portion of the pin 24 with the limit ring 26 and pin cap 27 extends out on the other side of the movable block 20. Then, loosen the pin cap 27 to release the restriction on the limit ring 26. At this time, the limit is released. Under the influence of gravity, ring 26 will move downwards. When the inner wall of the limiting ring 26 contacts the outer wall of the boss 25, one side of the limiting ring 26 will extend outwards towards the pin 24. At this time, the limiting ring 26 is in an eccentric state relative to the pin 24. Then, tighten the pin cap 27 to clamp and fix the eccentric limiting ring 26. Under the restriction of the eccentric limiting ring 26, the movable block 20 cannot be removed. This completes the installation of the filling tube 5. This installation method does not require tools, and workers can quickly fix the filling tube 5. It is also very convenient to disassemble, thus facilitating workers to inspect, maintain, clean, and replace the filling tube 5 and its valves and other equipment.

[0045] A platform 29 is placed on the front side of the frame 1, below the corresponding filling head 8.

[0046] The top of the placement platform 29 is provided with a placement frame 30, and several rotating rollers 31 are evenly distributed along the horizontal direction inside the placement frame 30.

[0047] The working principle of this utility model is as follows: An empty bucket is placed on the rotating roller 31 of the placement frame 30, and the inlet of the empty bucket is aligned with the filling head 8. The control button is activated, and driven by the PLC control system, the double-rod sliding cylinder 16 is first activated, controlling the piston rod to move downwards, which in turn drives the movable plate 4 to move downwards. At this time, the filling tube 5 moves downwards towards the filling port of the empty bucket until the lower end of the filling head 8 enters the empty bucket. Then, the gas pump of the nitrogen tank is activated and nitrogen is supplied through the gas pipe to the gas chamber 11 of the outlet gas head 10. Subsequently, the nitrogen flows along the bottom 13 of the outlet gas head 10. Nitrogen gas is discharged and enters the empty container to purge the air inside. Then, the pneumatic angle seat valve 7 is activated, and the material enters the inner connector pipe 9 along the filling pipe 5 and is filled into the container through the opening at the bottom of the inner connector pipe 9. During the filling process, nitrogen gas is continuously supplied, thus achieving full protection of the filled material with nitrogen. After the filling operation is completed, the pneumatic angle seat valve 7 is closed, thereby stopping the supply of material. Then, the double-rod slide cylinder 16 is controlled again, thereby controlling the filling head 8 to move out of the filling port of the empty container, and the nitrogen gas supply also stops. Finally, the filling port is sealed to complete the filling operation.

[0048] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A filling equipment suitable for polyurethane adhesives or polyurethane elastomer mixtures, characterized in that: The device includes a frame, on which a control cabinet and a control panel are installed. The frame also has a movable plate that can move up and down on its top. A filling pipe is vertically installed on the movable plate. A conveying hose for conveying finished materials is installed at the top of the filling pipe. A pneumatic angle seat valve is installed at the bottom of the filling pipe. A filling head is installed at the bottom of the pneumatic angle seat valve. The filling head includes an inner connector tube connected to the pneumatic angle seat valve. The finished material flows out along the inner connector tube. An overall sealed outlet air head is provided on the outside of the inner connector tube. An air chamber is provided inside the outlet air head. An air inlet connector is provided on one side of the outlet air head. The air inlet connector is connected to a nitrogen tank through an air pipe. Air outlet holes are evenly distributed around the bottom of the outlet air head.

2. The filling equipment for polyurethane adhesives or polyurethane elastomer mixtures according to claim 1, characterized in that: The lower end of the outlet air head is flush with the lower end of the inner connector tube, and the upper end of the inner connector tube extends outward from the outlet air head. The end of the inner connector tube that protrudes from the outlet air head is sealed and connected to the bottom end of the pneumatic angle seat valve.

3. The filling equipment for polyurethane adhesives or polyurethane elastomer mixtures according to claim 2, characterized in that: The filling tube is equipped with a manual emergency valve located above the pneumatic angle seat valve.

4. The filling equipment for polyurethane adhesives or polyurethane elastomer mixtures according to claim 1, characterized in that: A bracket is provided at the top of the frame, and a double-rod slide cylinder is provided on the bracket. The cylinder barrel of the double-rod slide cylinder is fixedly connected to the bracket, and the piston rod of the double-rod slide cylinder is arranged vertically. The movable plate is provided with connectors at the upper and lower ends of its back. The upper and lower ends of the piston rod of the double-rod slide cylinder are fixedly connected to the connectors at the upper and lower ends, respectively.

5. The filling equipment for polyurethane adhesives or polyurethane elastomer mixtures according to claim 1, characterized in that: The movable plate has a mounting base at its lower front end, and the filling pipe is fixed at the mounting base.

6. The filling equipment for polyurethane adhesives or polyurethane elastomer mixtures according to claim 5, characterized in that: The mounting base includes a fixed block that is fixedly connected to the movable plate. The fixed block has a movable block at its end away from the movable plate. Both the fixed block and the movable block have semi-circular clamping grooves at their joints. The two clamping grooves cooperate to form a clamping opening that is compatible with the filling tube. The filling tube has an annular retaining edge at the upper and lower ends of the mounting base, respectively. The annular retaining edge abuts against the upper and lower ends of the mounting base. The movable block is connected to the fixed block by a quick-release pin.

7. The filling equipment for polyurethane adhesives or polyurethane elastomer mixtures according to claim 6, characterized in that: The quick-release pin includes pins on both sides of the clamping groove of the fixed block. The movable block has pin holes on both sides of the clamping groove that match the pins. The length of the pin is the same as the length of the pin holes. A boss is provided at the end of the pin furthest from the fixed block. The diameter of the boss is smaller than the diameter of the pin. A limiting ring is fitted onto the boss. The length of the limiting ring is the same as the length of the boss. The outer diameter of the limiting ring is the same as the diameter of the pin, and its inner diameter is larger than the diameter of the boss. A pin cap is provided at the end of the boss, clamping the limiting ring onto the boss. A threaded rod is provided at the end of the pin cap connected to the boss. A threaded hole is provided at the end of the boss that matches the threaded rod. The pin cap and the boss are threadedly connected.

8. The filling equipment for polyurethane adhesives or polyurethane elastomer mixtures according to claim 1, characterized in that: A platform is placed on the front side of the frame, corresponding to the position below the filling head.

9. A filling device for polyurethane adhesives or polyurethane elastomer mixtures according to claim 8, characterized in that: The top of the placement platform is provided with a placement frame, and several rotating rollers are evenly distributed in the horizontal direction inside the placement frame.