Polyurethane adhesive filling device and method

Abstract

This invention relates to the field of filling equipment technology, and provides a polyurethane adhesive filling device and method, including a filling machine, a transmission table at its bottom, and a filling gun at the lower end of a material cylinder; a fixed platform, located above the transmission table, for supporting the container for filling operations, with ball bearings inside its upper end to reduce resistance to container movement and facilitate fine-tuning positioning; a slide, located outside the lower end of the filling gun, using a conical platform at its bottom to engage with the container opening, for driving the container to slide and position its opening coaxial with the filling gun; and a discharge head, located at the bottom of the filling gun, with the bottom area of ​​the conical structure used to seal the opening and prevent polyurethane adhesive from dripping. This invention can quickly position containers with small openings for precise filling, and forms a double seal for the filling mechanism before and after filling, preventing material dripping without the need for external sealing components, ensuring a clean working area, preventing material waste, and reducing work difficulty.

Description

Technical Field

[0001] This invention relates to the field of filling equipment technology, and more specifically, to a polyurethane adhesive filling apparatus and method. Background Technology

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

[0003] Currently, in polyurethane adhesive filling operations, it has been found that when the container used has only one opening at the top, the placement of the container becomes very important. If not handled carefully, the polyurethane adhesive will spill onto the outside of the container, making the work more difficult, extending the production cycle, and hindering the filling operation.

[0004] To address the aforementioned problems, this application proposes a polyurethane adhesive filling apparatus and method. Summary of the Invention

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

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

[0007] On the one hand, a polyurethane adhesive filling device includes a filling machine and a transmission table at its bottom and a filling gun at the lower end of the material cylinder;

[0008] The fixed platform, located above the transmission platform, is used to support the container for filling operations. The upper end is equipped with ball bearings to reduce the resistance of container movement and facilitate fine-tuning of positioning.

[0009] The slide is located on the lower outer side of the filling gun. It uses the conical platform at the bottom to connect with the opening of the container and move the container to position its opening coaxial with the filling gun.

[0010] The discharge head, located at the bottom of the filling gun, has a tapered bottom area used to seal the opening and prevent polyurethane adhesive from dripping.

[0011] The push block, located inside the slide, moves up and down synchronously to squeeze different positions of the outer rubber pad on the outside of the discharge head, thereby opening and closing the bottom opening of the discharge head.

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

[0013] S1: When the container is transported in the filling machine, it is supported by a fixed platform and the frictional resistance at its bottom is reduced by the use of ball bearings;

[0014] S2: Before the filling operation, the filling gun descends and the electric telescopic device applies pressure to the slide, causing the conical platform to pre-press against the opening at the top of the container, and under the pressure, it drives the container to move until its opening is coaxial with the filling gun.

[0015] S3: During the filling operation, the filling gun is raised to move the pusher block below the guide pad to release the restriction on the discharge head. At this time, the tension of the elastic telescopic rod is used to open the bottom opening of the discharge head for filling.

[0016] S4: After the filling operation, the filling gun is pressed down, causing the pusher to squeeze the outer rubber pad. The conical structure guides the bottom structure of the discharge head to retract, thereby closing the opening. At the same time, the retraction of the discharge head causes the sealing ball to block the stepped hole, forming a flow blockage.

[0017] S5: Finally, simply replace the container to form a cycle.

[0018] The beneficial effects of this invention are:

[0019] This invention uses a fixed platform to support the container, and during the filling operation, the sliding block can be used to push the container to shift, 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 spills. It is suitable for the needs of mass production operations, shortens the production cycle, and improves the practicality of the equipment.

[0020] During the filling operation, this invention utilizes the retraction energy of the slide to drive the pusher block to squeeze the outer wall of the outer rubber pad. Its inclined structure causes the bottom of the discharge head to contract inward until a blockage is formed. This arrangement not only achieves the function of quantitative filling, but also automatically seals the discharge port to prevent leakage of polyurethane adhesive when changing containers. This prevents material waste, ensures a clean working environment, and is convenient for use in continuously operating filling equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

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

[0024] Figure 3 This is a schematic diagram of the transmission table structure of the present invention;

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

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

[0027] The attached diagram lists the components represented by each number as follows:

[0028] In the picture:

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

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

[0031] 32. Slide; 321. Conical truss; 322. Push block; 323. Connecting rod;

[0032] 33. Feed head; 331. Outer rubber pad; 332. Guide pad;

[0033] 34. Outer ring frame; 341. Flexible telescopic tie rod;

[0034] 35. Sealing ball; 351. Connecting rod. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1 - Figure 5 As shown, the present invention provides a polyurethane adhesive filling apparatus 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 table 2 at its bottom, and a filling gun 3 at the lower end of the material cylinder.

[0039] The fixed platform 21 is located above the transmission platform 2 and is used to support the container for filling operations. The upper end is equipped with ball bearings 211 to reduce the resistance of container movement and facilitate fine-tuning of positioning.

[0040] The slide 32 is located on the outer side of the lower end of the filling gun 3. It uses the conical platform 321 at the bottom to connect with the opening of the container and drive the container to slide so that its opening is positioned coaxial 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 seal the opening to prevent polyurethane adhesive from dripping.

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

[0043] This embodiment provides a polyurethane adhesive filling device that can quickly position small-opening containers and prevent material leakage. By using the ball bearing 211 to reduce the resistance of container movement, combined with the pressure applied to the opening by the conical platform 321, the container can be moved to achieve a fine-tuning effect, making the opening 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 drive the push block 322 to squeeze the outer rubber pad 331, causing the bottom structure of the discharge head 33 to retract inward to achieve a sealing effect. In this way, material leakage can be effectively prevented when changing containers, and it can be ensured that the material will not contaminate other components.

[0044] like Figure 1 As shown, the bottom of the material cylinder of the filling machine 1 is provided with a fixed seat 31 for installing the filling gun 3, and an electric telescopic device 311 is provided in the outer ring area below it, which is connected to the slide 32 to drive it to move up and down. In the process of moving down, the conical platform 331 continuously squeezes the opening of the container, thereby forming a positioning so that the opening of the container 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 covers the upper outer side of the feeding head 33. An annular cavity is formed between the inner part and the outer rubber pad 331, and an elastic telescopic pull rod 341 is installed through it, with one end connected to the upper position of the feeding head 33. This allows the structure of the upper area of ​​the feeding head 33 to be pulled outward when the push block 322 is moved out, thereby opening the opening of the lower area. Thus, the polyurethane adhesive can be sealed inside the filling gun 3 without the need for other sealing components.

[0046] like Figure 5 As shown, a connecting rod 323 is provided on the inner side of the slide block 32 near the lower end for mounting the push block 322 and forming a circumferentially evenly distributed on its outer side, so that when the push block 322 moves upward, the squeezing force applied to the outer rubber pad 331 in each direction is equal, thereby ensuring that the force is uniform when the bottom of the discharge head 33 is closed, and preventing material leakage due to gaps.

[0047] like Figure 5As shown, the lower end of the outer rubber pad 331 is provided with a guide pad 332 that bends towards the bottom of the feed head 33. When the push block 322 is at the lower end, it is used to guide the outer rubber pad 331 to facilitate compression. When the feed head 33 is open, the push block 322 is located below the guide pad 332. When the push block 322 moves upward, it contacts the lower surface of the guide pad 332 in advance. This guide causes the feed head 33 to retract, allowing the outer rubber pad 331 to enter the compression range of the push block 322.

[0048] like Figure 5 As shown, the filling gun 3 has a stepped hole 312 inside that connects to the feeding head 33. The stepped hole 312 contains a sealing ball 35, and a connecting rod 351 is provided at its lower end to connect to the upper inner wall of the feeding head 33. When the feeding head 33 closes, it drives the sealing ball 35 to block the stepped hole 312, thereby controlling the material flow and forming a double seal, which effectively prevents 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 frictional resistance at its bottom is reduced by the ball bearings 211.

[0052] S2: Before the filling operation, the filling gun 3 descends and the electric telescopic device 311 presses against the slide 32, so that the conical platform 321 is in advance against the opening at the top of the container, and the container is moved under pressure until its opening is coaxial with the filling gun 3.

[0053] S3: During the filling operation, the filling gun 3 is raised so that the push block 322 moves to the bottom of the guide pad 332 to release the restriction on the feeding head 33. At this time, the tension of the elastic telescopic rod 341 is used to open the bottom opening of the feeding head 33 for filling.

[0054] S4: After the filling operation, the filling gun 3 is pressed down, causing the pusher 322 to squeeze the outer rubber pad 331. The conical structure guides the bottom structure of the discharge head 33 to retract, thereby closing the opening. At the same time, the retraction of the discharge head 33 causes the sealing ball 35 to block the stepped hole 312, forming a flow blockage.

[0055] S5: Finally, simply replace the container to form a cycle.

[0056] Understandably, this invention can quickly position containers with small openings to form precise filling, and form a double seal on the filling mechanism before and after filling. It can prevent material leakage without the need for external sealing components, ensure the cleanliness of the work area, prevent material waste, and reduce the difficulty of the work.

[0057] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above 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 one or more embodiments or examples.

[0058] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The 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), a transmission table (2) at its bottom, and a filling gun (3) at the lower end of a material cylinder, characterized in that: The fixed platform (21) is located above the transmission platform (2) and is used to carry the container for filling operations. The upper end is equipped with ball bearings (211) to reduce the resistance of the container movement and facilitate fine-tuning of the positioning. The slide (32) is located on the lower outer side of the filling gun (3). It uses the conical platform (321) at the bottom to connect with the opening of the container and drive the container to slide so that its opening is positioned coaxial with the filling gun (3). The discharge head (33) is located at the bottom of the filling gun (3), and the bottom area of ​​the conical structure is used to seal the opening to prevent polyurethane adhesive from dripping. The push block (322) is located inside the slide (32) and moves up and down synchronously. It is used to squeeze the outer rubber pad (331) on the outside of the feed head (33) at different positions to open and close the bottom opening of the feed head (33). The lower end of the filling gun (3) is provided with an outer ring frame (34), which covers the upper outer side of the feeding head (33), and forms an annular cavity between the inside and the outer rubber pad (331); The inner side of the outer ring frame (34) is provided with an elastic telescopic pull rod (341) connected to the upper position of the material feed head (33) to drive the material feed head (33) to expand outward so that the bottom opening is opened; The filling gun (3) has a stepped hole (312) inside that connects to the feeding head (33), and a sealing ball (35) is built into the stepped hole (312) to control the flow rate; 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 feeding head (33), which is used to make the closing of the feeding head (33) and the sealing ball (35) block the stepped hole (312) at the same time.

2. The polyurethane adhesive filling device according to claim 1, characterized in that: The filling machine (1) has a fixed seat (31) at the bottom of the material cylinder for installing the filling gun (3), and an electric telescopic device (311) in the outer ring area below it is connected to the slide (32) for driving it to move up and down to position the container.

3. The polyurethane adhesive filling device according to claim 2, characterized in that: The slide (32) is provided with a connecting rod (323) on the inner side near the lower end for mounting the push block (322) and forming a circumferentially evenly distributed on its outer side to ensure that the bottom of the feed head (33) is subjected to uniform force when it is closed.

4. A polyurethane adhesive filling device according to claim 3, characterized in that: The lower end of the outer rubber pad (331) is provided with a guide pad (332) that bends to the bottom of the lower feed head (33) and is used to guide the push block (322) to facilitate the squeezing of the outer rubber pad (331) when the push block (322) is at the lower end.

5. A polyurethane adhesive filling device according to claim 4, characterized in that: The pusher (322) is located below the guide pad (332) when the opening of the feed head (33) is open.

6. A method for filling polyurethane adhesive, using the polyurethane adhesive filling apparatus according to claim 5, characterized in that, Includes the following steps: S1: When the container is transported in the filling machine (1), it is supported by the fixed platform (21) and the frictional resistance at its bottom is reduced by the use of the ball bearings (211); S2: Before the filling operation, the filling gun (3) descends and the electric telescopic device (311) presses against the slide (32) to make the conical platform (321) press against the opening at the top of the container in advance, and under the pressure, the container moves until its opening is coaxial with the filling gun (3). S3: During the filling operation, the filling gun (3) is raised to move the push block (322) to the bottom of the guide pad (332) to release the limit on the discharge head (33). At this time, the tension of the elastic telescopic rod (341) is used to open the bottom opening of the discharge head (33) for filling. S4: After the filling operation, the filling gun (3) is pressed down so that the push block (322) squeezes the outer rubber pad (331). The conical structure guides the bottom structure of the discharge head (33) 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) to form a flow blockage. S5: Finally, simply replace the container to form a cycle.

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