Leakage-proof device for foaming agent injection gun head of automobile seat cushion

Abstract

The utility model relates to the technical field of automobile seat cushion production, and discloses an anti-leakage device of an automobile seat cushion foaming agent injection gun head, which comprises a mounting ring and a blocking seat, a 7-shaped connecting rod is fixed on the side wall of the mounting ring, the bottom of the 7-shaped connecting rod is connected with the blocking seat in a sliding manner, a cavity is arranged in the blocking seat, and a feeding opening is arranged at the top of the blocking seat. And one side of the blocking seat is connected with a material returning pipe, and the material returning pipe is communicated with the cavity. After the material injection gun head completes material injection, the blocking base moves to the position under the material injection gun head, the discharging opening of the material injection gun head is made to directly face the feeding opening, foaming agents remaining on the inner wall of the gun head flow into the cavity of the blocking base and then are collected into the foaming agent storage tank through the material return pipe, waste of the foaming agents is reduced, and the production cost and the cleaning cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat cushion production, in particular to a leakage prevention device for an automobile seat cushion foaming agent injection gun head. Background Art

[0002] The car seat processing is to use a foaming device to mix the A component isocyanate and the B component polyol, heat them evenly, and then spray them out. The car seat cushion can be solidified in 1 minute under the limitation of a fixed model, and it has softness and wear resistance, which prolongs the life of the car seat cushion and conforms to the sitting posture of the passengers. The foaming raw materials are injected into the mold through an injection gun, and the car seat cushion is formed by the mold. After the injection gun injects the foaming material into the mold, it will reset and withdraw from the mold. Since the raw materials in the gun cannot be completely discharged, a small amount will be retained in the gun barrel, and it is impossible to wait for the foaming material in the gun to fall completely into the mold, which will reduce the production effect. This makes it easy for the injection gun to cause the foaming material in the gun to drip due to movement during the resetting process, thereby contaminating the machine and the ground, and increasing the cleaning cost. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provides a leakage-proof device for an injection gun head of a foaming agent for an automobile seat cushion, so as to solve the deficiencies of the prior art.

[0004] The purpose of the utility model is achieved through the following technical scheme: a leakage prevention device for a car seat foaming agent injection gun head, comprising a mounting ring and a block seat, a side wall of the mounting ring is fixed with a 7-shaped connecting rod, the bottom of the 7-shaped connecting rod is slidably connected to the block seat, a cavity is provided in the block seat, a feed opening is opened on the top of the block seat, the feed opening is connected to the cavity, a return pipe is connected to one side of the block seat, and the return pipe is connected to the cavity.

[0005] In some embodiments, two inverted T-shaped grooves are provided on the top surface of the block seat, the feed opening is located between the two inverted T-shaped grooves, an inverted T-shaped slider is slidably adapted in the inverted T-shaped groove, and two 7-shaped connecting rods are provided corresponding to the inverted T-shaped groove, one end of the 7-shaped connecting rod is fixedly connected to the inverted T-shaped slider, and the other end is fixedly connected to the mounting ring.

[0006] In some embodiments, a servo is installed on one of the 7-shaped connecting rods, the output shaft of the servo is provided with a gear, a spur rack is fixed on the top surface of the block seat, the spur rack is parallel to the inverted T-shaped slide groove, and the gear meshes with the spur rack.

[0007] In some embodiments, the block seat is provided with a left positioning plate and a right positioning plate at both ends along its own moving direction. When the block seat contacts the left positioning plate, the injection gun head corresponds to the feed opening. When the block seat contacts the right positioning plate, the block seat is located on one side of the injection gun head.

[0008] In some embodiments, a plurality of locking bolts are threadedly passed through the side wall of the mounting ring.

[0009] In some embodiments, a vibration mechanism is provided on the side wall of the mounting ring, and the vibration mechanism includes a vibration servo and a fan-shaped vibrating body. The vibration servo is installed on the mounting ring, and the fan-shaped vibrating body is fixed on the output shaft of the vibration servo. A rubber layer is fixed on the outer side of the fan-shaped vibrating body, and the rubber layer is in a compressed state and contacts the injection gun head.

[0010] The beneficial effects of the utility model are:

[0011] When the injection gun head completes injection, the stop seat moves to the bottom of the injection gun head so that the discharge port of the injection gun head faces the feed opening, allowing the foaming agent remaining on the inner wall of the gun head to flow into the cavity of the stop seat and then be recovered into the foaming agent storage tank through the return pipe, thereby reducing the waste of foaming agent and reducing production costs and cleaning costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a leak-proof device for a foaming agent injection gun head for an automobile seat cushion according to the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of a stopper in a leak-proof device of a car seat foaming agent injection gun head according to the utility model;

[0014] In the figure, 1-mounting ring, 2-block seat, 3-7-shaped connecting rod, 4-cavity, 5-feed opening, 6-return pipe, 7-inverted T-shaped slide groove, 8-inverted T-shaped slider, 9-servo, 10-gear, 11-spur rack, 12-left positioning plate, 13-right positioning plate, 14-locking bolt, 15-vibration servo, 16-fan-shaped vibrator, 17-rubber layer. DETAILED DESCRIPTION

[0015] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0016] like Figure 1 and Figure 2As shown, a leakage prevention device for a foaming agent injection gun head for an automobile seat cushion comprises a mounting ring 1 and a stopper 2. A 7-shaped connecting rod 3 is fixed to the side wall of the mounting ring 1. The bottom of the 7-shaped connecting rod 3 is slidably connected to the stopper 2. A cavity 4 is arranged in the stopper 2. A feed opening 5 is opened on the top of the stopper 2. The feed opening 5 is connected to the cavity 4. A return pipe 6 is connected to one side of the stopper 2. The return pipe 6 is connected to the cavity 4. When the injection gun head is not injecting material, the stopper 2 is located below the injection gun head, and The discharge port of the injection gun head is opposite to the feed opening 5. When injecting, the stopper 2 moves to one side of the injection gun head so that the injection gun head can discharge materials normally. After the injection gun head completes injecting, the stopper 2 moves to directly below the injection gun head so that the discharge port of the injection gun head is opposite to the feed opening 5, so that the foaming agent remaining on the inner wall of the gun head flows into the cavity 4 of the stopper, and then is recovered into the foaming agent storage tank through the return pipe 6, thereby reducing the waste of foaming agent and reducing production costs and cleaning costs.

[0017] Furthermore, a plurality of locking bolts 14 are threadedly passed through the side wall of the mounting ring 1, and the plurality of locking bolts 14 are spaced apart around the circumferential direction of the mounting ring 1. The mounting ring 1 is put on the injection gun head, and then the locking bolts 14 are tightened so that the locking bolts 14 are pressed tightly against the injection gun head, thereby completing the tooling of the leak-proof device, which is simple and quick to install and has high adaptability.

[0018] In some embodiments, Figure 1 As shown, two inverted T-shaped slots 7 are provided on the top surface of the block seat 2, and the feed opening 5 is located between the two inverted T-shaped slots 7. An inverted T-shaped slider 8 is slidably adapted in the inverted T-shaped slot 7. Two 7-shaped connecting rods 3 are provided corresponding to the inverted T-shaped slot 7. One end of the 7-shaped connecting rod 3 is fixedly connected to the inverted T-shaped slider 8, and the other end is fixedly connected to the mounting ring 1. The sliding connection of the block seat 2 is completed by the adaptation of the inverted T-shaped slider 8 and the inverted T-shaped slot 7, and the block seat 2 can be limited at the same time to prevent the block seat 2 from falling.

[0019] In some embodiments, Figure 1 As shown, a servo 9 is installed on one of the 7-shaped connecting rods 3, and a gear 10 is provided on the output shaft of the servo 9. A spur rack 11 is fixed to the top surface of the stopper 2. The spur rack 11 is parallel to the inverted T-shaped slide groove 7. The gear 10 engages with the spur rack 11. The servo 9 drives the gear 10 to rotate, and the gear 10 drives the spur rack 11 to move in a straight line. The spur rack 11 drives the stopper 2 to move in a straight line, thereby completing the blocking and opening of the discharge port of the injection gun head.

[0020] In some embodiments, a left positioning plate 12 and a right positioning plate 13 are respectively provided at both ends of the block seat 2 along its own moving direction. When the block seat 2 contacts the left positioning plate 12, the injection gun head corresponds to the feed opening 5. When the block seat 2 contacts the right positioning plate 13, the block seat 2 is located on one side of the injection gun head. The movement of the two ends of the block seat 2 is positioned by the left positioning plate 12 and the right positioning plate 13, so that the movement of the block seat is more precise, ensuring that the residual foaming agent can fall into the block seat 2, and at the same time the injection gun head can discharge the material normally.

[0021] In some embodiments, Figure 1 As shown, a vibration mechanism is provided on the side wall of the mounting ring 1, and the vibration mechanism includes a vibration servo 15 and a fan-shaped vibrating body 16. The vibration servo 15 is installed on the mounting ring 1, and the fan-shaped vibrating body 16 is fixed on the output shaft of the vibration servo 15. A rubber layer 17 is fixed on the outer side of the fan-shaped vibrating body 16, and the rubber layer 17 contacts the injection gun head in a compressed state. After the blocking seat 2 blocks the injection gun head, the vibration servo 15 drives the fan-shaped vibrating body 16 to rotate, and the fan-shaped vibrating body 16 frequently knocks on the side of the injection gun head, so that the residual foaming agent attached to the inner wall of the injection gun head falls into the blocking seat 2. The setting of the rubber layer 17 prevents the fan-shaped vibrating body 16 from interfering with the injection gun head, and the rubber layer 17 is squeezed between the fan-shaped vibrating body 16 and the injection gun head, so that the fan-shaped vibrating body 16 can pass through the injection gun head smoothly.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; and it is known to those skilled in the art that the beneficial effects to be achieved by the present invention are only to achieve better beneficial effects under specific circumstances compared with the current implementation schemes in the prior art, rather than to directly achieve the best use effect in the industry.

[0023] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A leak-proof device for a car seat foaming agent injection gun head, characterized in that: The invention comprises a mounting ring (1) and a stopper (2), wherein a 7-shaped connecting rod (3) is fixed to the side wall of the mounting ring (1), the bottom of the 7-shaped connecting rod (3) is slidably connected to the stopper (2), a cavity (4) is provided in the stopper (2), a feed opening (5) is provided at the top of the stopper (2), the feed opening (5) is connected to the cavity (4), and a return pipe (6) is connected to one side of the stopper (2), the return pipe (6) is connected to the cavity (4).

2. The anti-leakage device for the automobile seat cushion foaming agent injection gun head according to claim 1, characterized in that: The top surface of the blocking seat (2) is provided with two inverted T-shaped slide grooves (7), the feed opening (5) is located between the two inverted T-shaped slide grooves (7), an inverted T-shaped slider (8) is slidably adapted in the inverted T-shaped slide groove (7), two 7-shaped connecting rods (3) are provided corresponding to the inverted T-shaped slide grooves (7), one end of the 7-shaped connecting rod (3) is fixedly connected to the inverted T-shaped slider (8), and the other end is fixedly connected to the mounting ring (1).

3. The anti-leakage device for the automobile seat foaming agent injection gun head according to claim 2, characterized in that: A steering gear (9) is mounted on one of the 7-shaped connecting rods (3); an output shaft of the steering gear (9) is provided with a gear (10); a spur rack (11) is fixed to the top surface of the stopper (2); the spur rack (11) is parallel to the inverted T-shaped slide groove (7); and the gear (10) meshes with the spur rack (11).

4. The anti-leakage device for the automobile seat cushion foaming agent injection gun head according to claim 3, characterized in that: The stopper (2) is provided with a left positioning plate (12) and a right positioning plate (13) at both ends along its moving direction. When the stopper (2) contacts the left positioning plate (12), the injection gun head corresponds to the feed opening (5). When the stopper (2) contacts the right positioning plate (13), the stopper (2) is located on one side of the injection gun head.

5. The anti-leakage device for the automobile seat foaming agent injection gun head according to claim 1, characterized in that: A plurality of locking bolts (14) are threadedly passed through the side wall of the mounting ring (1).

6. The anti-leakage device for the automobile seat foaming agent injection gun head according to claim 1, characterized in that: A vibration mechanism is provided on the side wall of the mounting ring (1), the vibration mechanism comprising a vibration servo (15) and a fan-shaped vibration body (16), the vibration servo (15) being mounted on the mounting ring (1), the fan-shaped vibration body (16) being fixed on the output shaft of the vibration servo (15), a rubber layer (17) being fixed on the outer side surface of the fan-shaped vibration body (16), the rubber layer (17) being in a compressed state and contacting the injection gun head.

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