Polyurethane adhesive filling device and method

Abstract

The invention relates to the technical field of filling equipment, and provides a polyurethane adhesive filling device and method.The polyurethane adhesive filling device comprises a filling machine, a transmission table at the bottom of the filling machine and a filling gun at the lower end of a material barrel; the fixing table is located above the transmission table and used for bearing the container for filling operation, and balls are arranged in the upper end of the fixing table and used for reducing the moving resistance of the container to facilitate fine adjustment and positioning; the sliding seat is located on the outer side of the lower end of the filling gun, is in butt joint with the opening of the container through a conical table arranged at the bottom and is used for driving the container to slide so that the opening can be located to be coaxial with the filling gun; and the discharging head is located at the bottom of the filling gun, and the bottom area of the conical structure is used for blocking the opening to prevent the polyurethane adhesive from leaking. According to the invention, a container with a small opening can be quickly positioned to form accurate filling, double sealing is formed on the filling mechanism before and after filling, leakage of materials can be prevented without the aid of an external plugging assembly, cleanliness of a working area is ensured, waste of the materials is prevented, and the working difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of filling equipment, and more particularly to a polyurethane adhesive filling device and method. Background Art

[0002] Polyurethane adhesive filling refers to the process of injecting polyurethane adhesive into a specific container. It is an important step in its production process. It ensures that the adhesive can be accurately injected into the container for subsequent storage, transportation and use.

[0003] Currently, in the filling operation of polyurethane adhesive, it is found that when the container used has only one opening at the top, the placement of the container becomes very demanding. If not careful, the polyurethane adhesive will spill outside the container, which increases the difficulty of the work, prolongs the production cycle, and is not conducive to the filling operation.

[0004] To solve the above problems, the present application proposes a polyurethane adhesive filling device and method. Summary of the Invention

[0005] The object of the present invention is to provide a polyurethane adhesive filling device and method, which has the effects of accurate filling and preventing leakage.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] In one aspect, a polyurethane adhesive filling device comprises a filling machine, a transmission platform at its bottom, and a filling gun at the lower end of a material barrel;

[0008] The fixed platform is located above the transmission platform and is used to carry containers for filling operations. A ball bearing is installed inside the upper end to reduce the resistance of the container movement and facilitate fine-tuning of the positioning;

[0009] The slide is located outside the lower end of the filling gun and docks with the opening of the container using a conical platform at the bottom. It is used to drive the container to slide so that its opening is positioned coaxially with the filling gun.

[0010] The discharge head is located at the bottom of the filling gun. The bottom area of ​​the conical structure is used to seal the opening to prevent the polyurethane adhesive from dripping;

[0011] The push block is located on the inner side of the slide and moves up and down synchronously to squeeze different positions of the outer rubber pad on the outside of the blanking head to open and close the bottom opening of the blanking head.

[0012] On the other hand, a polyurethane adhesive filling method comprises the following steps:

[0013] S1: When the container is transported in the filling machine, it is supported by a fixed table and the ball bearings are used to reduce the friction resistance at the bottom;

[0014] S2: Before the filling operation, the filling gun is lowered and the electric telescopic device exerts pressure on the slide, so that the conical table is pre-pressed against the opening at the top of the container. Under the action of pressure, the container is moved until its opening is coaxial with the filling gun.

[0015] S3: During the filling operation, the filling gun is lifted up so that the push block moves to the bottom of the guide pad to release the limit of the discharge head. At this time, the tension of the elastic telescopic pull rod is used to open the bottom opening of the discharge head for filling and discharge;

[0016] S4: After the filling operation, the filling gun is pressed down to make the push block squeeze the outer rubber pad. The bottom structure of the discharge head is guided by the conical structure to shrink inward, thereby closing the opening. At the same time, the shrinkage of the discharge head drives the sealing ball to seal the stepped hole to form a flow blockage.

[0017] S5: Finally, the container is directly replaced to form a cycle.

[0018] Beneficial effects of the present invention:

[0019] The present invention supports the container through the fixed platform, and can use the downward pressure of the slide to drive the container to deflect during the filling operation, so that the top opening is quickly positioned coaxially with the filling gun. This arrangement not only reduces the difficulty of the filling operation, but also achieves accurate filling and prevents spillage, adapts to the needs of large-scale production operations, shortens its production cycle, and improves the practicality of the equipment.

[0020] During the filling operation, the present invention utilizes the recovery energy of the slide to drive the push block to squeeze the outer wall of the outer rubber pad, and utilizes its inclined structure to make the bottom of the discharge head shrink inward until it forms a blockage. After this arrangement, not only can the function of quantitative filling be achieved, but also the discharge port can be automatically sealed to prevent the polyurethane adhesive from dripping when the container is replaced, thereby preventing material waste and ensuring a clean working environment, and facilitating the use of continuously operating filling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a schematic diagram of the structure of the filling gun and container matching parts of the present invention;

[0023] Figure 2 This is a schematic diagram of the appearance structure of the filling machine of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the transmission platform of the present invention;

[0025] Figure 4 This is a schematic diagram of the exploded structure of the filling gun and container of the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the bottom of the filling gun of the present invention;

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] In the picture:

[0029] 1. Filling machine; 2. Transmission platform; 21. Fixed platform; 211. Ball bearing; 3. Filling gun;

[0030] 31. Fixed seat; 311. Electric expansion joint; 312. Step hole;

[0031] 32. Sliding seat; 321. Conical platform; 322. Push block; 323. Connecting rod;

[0032] 33. Blanking head; 331. External rubber pad; 332. Guide pad;

[0033] 34. Outer ring frame; 341. Elastic telescopic pull rod;

[0034] 35. Sealing ball; 351. Connecting rod. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1 - Figure 5 As shown, the present invention provides a polyurethane adhesive filling device and method.

[0037] Example 1

[0038] like Figure 1 - Figure 5 As shown, a polyurethane adhesive filling device includes a filling machine 1, a transmission platform 2 at its bottom, and a filling gun 3 at the lower end of the material barrel.

[0039] The fixed platform 21 is located above the transmission platform 2 and is used to carry the container for filling operations. A ball bearing 211 is provided inside the upper end to reduce the resistance of the container movement and facilitate fine-tuning of the positioning;

[0040] The slide 32 is located outside the lower end of the filling gun 3 and docks with the opening of the container using a conical platform 321 provided at the bottom, and is used to drive the container to slide so that its opening is positioned coaxially with the filling gun 3;

[0041] The discharge head 33 is located at the bottom of the filling gun 3. The bottom area of ​​the conical structure is used to block the opening to prevent the polyurethane adhesive from dripping;

[0042] The push block 322 is located inside the slide 32 and moves up and down synchronously to squeeze different positions of the outer rubber pad 331 outside the blanking head 33 to open and close the bottom opening of the blanking head 33.

[0043] This embodiment provides a polyurethane adhesive filling device that can quickly locate containers with small openings and prevent material dripping. After using the ball 211 to reduce the resistance to container movement, combined with the pressure applied by the conical platform 321 to its opening, the container can be driven to move to achieve a fine-tuning effect, so that the opening is coaxial with the filling gun 3, thereby reducing the difficulty of work and improving the filling accuracy. In addition, after filling, the conical platform 321 can also drive the push block 322 to squeeze the outer rubber pad 331, so that the bottom structure of the discharge head 33 shrinks inward to achieve a sealing effect. This can effectively prevent the dripping of materials when replacing containers and ensure that the materials will not contaminate other components.

[0044] like Figure 1 As shown, a fixing seat 31 is provided at the bottom of the material barrel of the filling machine 1 for mounting the filling gun 3, and an electric telescoping device 311 is provided in the outer ring area below the fixing seat 311 connected to the slide 32 for driving the sliding device 31 to move up and down, thereby driving the conical platform 331 to continuously squeeze the opening of the container during the downward movement, thereby forming a positioning so that the container opening is coaxial with the filling gun 3.

[0045] like Figure 5 As shown, the lower end of the filling gun 3 is provided with an outer ring frame 34, which is covered on the outer side of the upper end of the discharge head 33, and an annular chamber is formed between the interior and the outer rubber pad 331, and an elastic telescopic pull rod 341 is installed therethrough, so that one end of the elastic telescopic pull rod 341 is connected to the position adjacent to the upper end of the discharge head 33, so that when the push block 322 is moved out, the structure of the upper end area of ​​the discharge head 33 can be pulled outward, thereby driving the opening of the lower end area to open, thereby allowing the polyurethane adhesive to be sealed inside the filling gun 3 without the aid of other sealing components.

[0046] like Figure 5 As shown, a connecting rod 323 is provided on the inner side of the slide 32 near the lower end for installing the push block 322, and is evenly distributed circumferentially on the outer side thereof, so that when the push block 322 moves upward, the extrusion force applied to the outer rubber pad 331 in all directions is equal, thereby ensuring that the force is uniform when the bottom of the discharge head 33 is closed, so as to prevent the occurrence of gaps and material dripping.

[0047] like Figure 5As shown, a guide pad 332 is provided at the lower end of the outer rubber pad 331, which is bent toward the bottom of the lower feed head 33. When the push block 322 is located at the lower end, it is used to form a guide for it to facilitate the extrusion of the outer rubber pad 331. The push block 322 is located below the guide pad 332 when the feed head 33 is opened. When the push block 322 moves upward, it contacts the lower surface of the guide pad 332 in advance, thereby forming a guide to make the feed head 33 retract inward, so that the outer rubber pad 331 enters the extrusion range of the push block 322.

[0048] like Figure 5 As shown, a stepped hole 312 is provided inside the filling gun 3 to connect to the discharge head 33. A sealing ball 35 is installed in the stepped hole 312, and a connecting rod 351 is provided at the lower end thereof to connect to the inner wall of the upper end of the discharge head 33. When the discharge head 33 is closed, the sealing ball 35 is driven to seal the stepped hole 312 to control the material flow to form a rent order, so that double sealing is carried out at the same time, effectively preventing the material from flowing out.

[0049] Example 2

[0050] like Figure 1 - Figure 5 As shown, a polyurethane adhesive filling method includes the following steps:

[0051] S1: When the container is transported in the filling machine 1, it is supported by the fixed table 21 and the balls 211 are used to reduce the friction resistance at the bottom;

[0052] S2: Before the filling operation, the filling gun 3 is lowered and the electric telescopic device 311 exerts pressure on the slide 32, so that the conical platform 321 is pre-pressed against the opening at the top of the container. Under the action of pressure, the container is moved until its opening is coaxial with the filling gun 3.

[0053] S3: During the filling operation, the filling gun 3 is lifted up so that the push block 322 moves to the bottom of the guide pad 332 to release the limit of the discharge head 33. At this time, the tension of the elastic telescopic pull rod 341 is used to open the bottom opening of the discharge head 33 for filling and discharge;

[0054] S4: After the filling operation, the filling gun 3 is pressed downward so that the push block 322 squeezes the outer rubber pad 331. The bottom structure of the discharge head 33 is guided by the conical structure to shrink inward, thereby closing the opening. At the same time, the shrinkage of the discharge head 33 drives the sealing ball 35 to block the stepped hole 312, thus blocking the flow.

[0055] S5: Finally, the container is directly replaced to form a cycle.

[0056] It can be understood that the present invention can quickly locate containers with small openings for precise filling, and form a double seal on the filling mechanism before and after filling, preventing material dripping without the aid of external sealing components, ensuring the cleanliness of the working area, preventing material waste and reducing work difficulty.

[0057] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A polyurethane adhesive filling device, comprising a filling machine (1) and a transmission platform (2) at its bottom and a filling gun (3) at the lower end of a material barrel, characterized in that: The fixed platform (21) is located above the transmission platform (2) and is used to carry the container for filling operation. A ball (211) is provided inside the upper end to reduce the resistance of the container movement and facilitate fine adjustment of the positioning; The sliding seat (32) is located outside the lower end of the filling gun (3), and uses a conical platform (321) arranged at the bottom to dock with the opening of the container, and is used to drive the container to slide so that its opening is positioned coaxially with the filling gun (3); A feeding head (33) is located at the bottom of the filling gun (3), and the bottom area of ​​the conical structure is used to block the opening to prevent the polyurethane adhesive from dripping; The push block (322) is located inside the slide seat (32) and moves up and down synchronously, and is used to squeeze different positions of the outer rubber pad (331) outside the blanking head (33) to realize the opening and closing of the bottom opening of the blanking head (33).

2. A polyurethane adhesive filling device according to claim 1, characterized in that: A fixing seat (31) is provided at the bottom of the material barrel of the filling machine (1) for mounting the filling gun (3), and an electric telescopic device (311) is provided in the outer ring area below the fixing seat (31) and is connected to the sliding seat (32) for driving the sliding seat to move up and down to position the container.

3. A polyurethane adhesive filling device according to claim 2, characterized in that: The lower end of the filling gun (3) is provided with an outer ring frame (34), which covers the outer side of the upper end of the discharge head (33), and forms an annular chamber between the inner part and the outer rubber pad (331).

4. A polyurethane adhesive filling device according to claim 3, characterized in that: An elastic telescopic pull rod (341) is provided on the inner side of the outer ring frame (34) and is connected to a position adjacent to the upper end of the material discharge head (33) for driving the material discharge head (33) to expand outward so that the bottom opening is opened.

5. A polyurethane adhesive filling device according to claim 4, characterized in that: A connecting rod (323) is provided on the inner side of the slide seat (32) near the lower end, for mounting the push block (322), and is evenly distributed circumferentially on the outer side thereof, for ensuring that the force is evenly applied to the bottom of the blanking head (33) when it is closed.

6. A polyurethane adhesive filling device according to claim 5, characterized in that: The lower end of the outer rubber pad (331) is provided with a guide pad (332) which bends toward the bottom of the lower material head (33) and is used to guide the push block (322) when it is located at the lower end to facilitate squeezing the outer rubber pad (331).

7. A polyurethane adhesive filling device according to claim 6, characterized in that: The push block (322) is located below the guide pad (332) when the blanking head (33) is opened.

8. A polyurethane adhesive filling device according to claim 7, characterized in that: The filling gun (3) is provided with a stepped hole (312) inside thereof and is connected to the material discharge head (33). A sealing ball (35) is built into the stepped hole (312) for controlling the flow rate.

9. A polyurethane adhesive filling device according to claim 8, characterized in that: The lower end of the sealing ball (35) is provided with a connecting rod (351) connected to the inner wall of the upper end of the material discharge head (33), so as to enable the closing of the material discharge head (33) and the sealing of the stepped hole (312) by the sealing ball (35) to be performed simultaneously.

10. A polyurethane adhesive filling method, using the polyurethane adhesive filling device according to claim 9, characterized in that: The following steps are involved: S1: When the container is transported in the filling machine (1), it is supported by the fixed table (21) and the friction resistance at the bottom is reduced by the ball bearings (211); S2: Before the filling operation, the filling gun (3) is lowered and the electric telescopic device (311) exerts pressure on the slide seat (32), so that the conical platform (321) is pressed against the opening at the top of the container in advance, and the container is driven to move under the pressure until its opening is coaxial with the filling gun (3); S3: During the filling operation, the filling gun (3) is lifted up so that the push block (322) moves to the bottom of the guide pad (332) to release the limit on the discharge head (33). At this time, the pulling force of the elastic telescopic pull rod (341) is used to open the bottom opening of the discharge head (33) for filling and discharge; S4: After the filling operation, the filling gun (3) is pressed downward so that the push block (322) squeezes the outer rubber pad (331), and the bottom structure of the discharge head (33) is retracted by the guidance of the conical structure, thereby closing the opening. At the same time, the retraction of the discharge head (33) drives the sealing ball (35) to block the stepped hole (312) to form a flow blockage; S5: Finally, the container is directly replaced to form a cycle.

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