Polyurethane seat armrest foaming mold capable of automatically demolding

Abstract

The utility model discloses a polyurethane seat armrest foaming mould capable of automatically demoulding, which relates to the technical field of polyurethane foaming moulds and comprises a lower mould, an upper mould is rotatably mounted at the top end of the lower mould, and a non-rotating end of the upper mould is detachably connected with the lower mould through a locking mechanism. The lower die comprises a fixed lower die body and an upper die body, a sealing ring is installed on the butt joint face of the fixed lower die body and the upper die body, driving mechanisms connected with one end of the movable lower die body are installed on the two sides of the fixed lower die body, and guiding mechanisms are installed at the positions, located above the driving mechanisms, of the two sides of the fixed lower die body and the two sides of the upper die body. A first demolding mechanism is installed on the two sides of the fixed lower mold and located above the guide mechanism. Through the arrangement of the fixed lower mold, the movable lower mold, the driving mechanism, the first demolding mechanism and the second demolding mechanism, the automatic demolding effect after foaming is completed can be achieved, and manual demolding is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane foaming moulds, in particular to a polyurethane seat armrest foaming mould capable of automatic demoulding. Background Art

[0002] The foaming mold is a molding device composed of an upper mold with an upper mold cavity and a lower mold with a lower mold cavity. The upper mold cavity and the lower mold cavity enclose a molding space. When in use, the polyurethane raw materials are first fully mixed and evenly injected into the mold cavity of the mold, and the material can be foamed and molded into a finished product according to the shape of the mold cavity. In the prior art, after the product is foamed, it needs to be demolded manually, the demolding efficiency is slow, and the product at this time has a certain temperature, which is prone to scalding risks. In addition, the traditional upper and lower mold structure makes the molded product mostly located in the lower mold cavity after the mold is opened, and the contact area between the product and the lower mold cavity is large, resulting in a large demolding resistance. Forcibly removing the molded product will also cause damage to the product appearance. In view of this, the applicant provides a polyurethane seat armrest foaming mold that can be automatically demolded. Utility Model Content

[0003] The purpose of the utility model is to provide a polyurethane seat armrest foaming mold capable of automatic demoulding in order to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyurethane seat armrest foaming mold capable of automatic demoulding, comprising a lower mold, an upper mold is rotatably installed on the top of the lower mold, the non-rotating end of the upper mold is detachably connected to the lower mold through a locking mechanism, a feed injection hole is arranged on the upper mold, and a one-way valve is arranged on the feed injection hole; the lower mold comprises a fixed lower mold and a movable lower mold, a sealing ring is arranged on the docking surface of the fixed lower mold and the upper mold, a driving mechanism connected to one end of the movable lower mold is arranged on both sides of the fixed lower mold, a guide mechanism is arranged on both sides of the fixed lower mold and the upper mold above the driving mechanism, a No. 1 demoulding mechanism is arranged on both sides of the fixed lower mold above the guide mechanism, the No. 1 demoulding mechanism extends to the inner cavity of the movable lower mold, and a No. 2 demoulding mechanism is arranged on both sides of the movable lower mold between the guide mechanism and the driving mechanism, and the No. 2 demoulding mechanism extends to the inner cavity of the fixed lower mold.

[0005] As a further solution of the utility model: the driving mechanism includes electric push cylinders installed below both sides of the fixed lower mold, the output ends of the two electric push cylinders are fixedly installed with connecting rods, and the ends of the two connecting rods away from the electric push cylinders are fixedly installed with mounting plates, and the mounting plates are fixedly connected to one end of the movable lower mold.

[0006] As a further solution of the utility model: the guide mechanism includes guide rods fixedly installed on both sides of the movable lower mold and limiting rings fixedly connected to both sides of the fixed lower mold, the guide rods are slidably connected to the inner wall of the limiting rings, and one end of the guide rod is integrally formed with an anti-slip block.

[0007] As a further solution of the utility model: the No. 1 demolding mechanism includes an upper connecting frame fixedly connected to both sides of the fixed lower mold, the upper connecting frame is located above the guide rod, and the upper connecting frame extends to one end of the movable lower mold, and the end of the upper connecting frame close to the movable lower mold is integrally formed with a front demolding plate that penetrates into the inner cavity of the movable lower mold, and the front demolding plate is located at one end of the inner cavity of the movable lower mold and is flush with the side wall of the inner cavity of the movable lower mold.

[0008] As a further solution of the utility model: the No. 2 demolding mechanism includes a lower connecting frame fixedly connected to both sides of the movable lower mold, the lower connecting frame extends to one end of the fixed lower mold, and the end of the lower connecting frame close to the fixed lower mold is integrally formed with a rear demolding plate that penetrates into the inner cavity of the fixed lower mold, the rear demolding plate is located at one end of the inner cavity of the fixed lower mold and is flush with the side wall of the inner cavity of the fixed lower mold, and the front demolding plate and the rear demolding plate are symmetrically arranged in the front-to-back direction.

[0009] As a further solution of the utility model: the locking mechanism includes a fixing ear fixedly connected to one end of the movable lower mold and a connecting plate fixedly connected to the non-rotating end of the upper mold, a rotating bolt is rotatably installed on the inner side of the fixing ear, a slot for the rotating bolt to rotate is opened inside the connecting plate, a rotating nut is threadedly connected to the upper outer wall of the rotating bolt, and two connecting ears are fixedly connected to the outer periphery of the rotating nut.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By setting a fixed lower mold, a movable lower mold, a driving mechanism, a No. 1 demoulding mechanism and a No. 2 demoulding mechanism, an automatic demoulding effect can be achieved after the foaming is completed. There is no need for manual demoulding. The degree of automation is high and the demoulding resistance is small, which can effectively ensure the molding quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the installation structure of the rear stripping plate of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the locking mechanism of the utility model.

[0015] In the figure: 1. Fixed lower die; 2. Upper die; 3. Moving lower die; 4. Limiting ring; 5. Guide rod; 6. Anti-slip block; 7. Electric push cylinder; 8. Connecting rod; 9. Mounting plate; 10. Fixed ear; 11. Connecting plate; 12. Notch; 13. Rotating bolt; 14. Rotating nut; 15. Connecting ear; 16. Lower connecting frame; 17. Upper connecting frame; 18. Front stripping plate; 19. Rear stripping plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1 to Figure 3 In an embodiment of the utility model, a polyurethane seat armrest foaming mold capable of automatic demoulding comprises a lower mold, an upper mold 2 is rotatably installed on the top of the lower mold, a non-rotating end of the upper mold 2 is detachably connected to the lower mold through a locking mechanism, a feed injection hole is arranged on the upper mold 2, and a one-way valve is arranged on the feed injection hole; the lower mold comprises a fixed lower mold 1 and a movable lower mold 3, a sealing ring is arranged on the butt joint surface of the fixed lower mold 1 and the upper mold 2, a driving mechanism connected to one end of the movable lower mold 3 is arranged on both sides of the fixed lower mold 1, a guide mechanism is arranged above the driving mechanism on both sides of the fixed lower mold 1 and the upper mold 2, a demoulding mechanism No. 1 is arranged above the guide mechanism on both sides of the fixed lower mold 1, and the demoulding mechanism No. 1 extends to the inner cavity of the movable lower mold 3, and a demoulding mechanism No. 2 is arranged between the guide mechanism and the driving mechanism on both sides of the movable lower mold 3, and the demoulding mechanism No. 2 extends to the inner cavity of the fixed lower mold 1.

[0018] In this embodiment: when the fixed lower mold 1 and the movable lower mold 3 of the lower mold are in the closed state, the upper mold 2 is closed (there is an air outlet gap between the upper mold 2 and the fixed lower mold 1 and the movable lower mold 3), and the upper mold 2 is limited by the locking mechanism. At this time, the polyurethane foaming raw material is quantitatively injected into the lower mold through the material injection hole, and then the foaming is completed. After the foaming is completed, the upper mold 2 is released by rotating the locking mechanism, and the upper mold 2 is rotated to open, and then the driving mechanism is started, and the driving mechanism drives the movable lower mold 3 to move axially. At this time, the No. 2 demolding mechanism moves synchronously with the movable lower mold 3, and the No. 1 demolding mechanism remains stationary with the fixed lower mold 1. Therefore, when the movable lower mold 3 moves, the demolding mechanism can realize the foamed polyurethane handle from the mold cavity, and achieve an automatic demolding effect.

[0019] Please refer to Figure 1 and Figure 2 The driving mechanism includes electric push cylinders 7 installed below both sides of the fixed lower mold 1. The output ends of the two electric push cylinders 7 are fixedly installed with connecting rods 8. The ends of the two connecting rods 8 away from the electric push cylinders 7 are fixedly installed with mounting plates 9, and the mounting plates 9 are fixedly connected to one end of the movable lower mold 3.

[0020] In this embodiment: by starting the electric push cylinder 7, the electric push cylinder 7 drives the connecting rod 8 to move in the direction away from the fixed lower mold 1, and the connecting rod 8 drives the movable lower mold 3 to move axially synchronously through the mounting plate 9, so that the movable lower mold 3 and the fixed lower mold 1 are separated from the docking state.

[0021] Please refer to Figure 1 and Figure 2 The guide mechanism includes guide rods 5 fixedly installed on both sides of the movable lower mold 3 and limit rings 4 fixedly connected to both sides of the fixed lower mold 1. The guide rods 5 are slidably connected to the inner wall of the limit rings 4, and one end of the guide rods 5 is integrally formed with an anti-slip block 6.

[0022] In this embodiment: when the movable lower mold 3 moves axially, the movable lower mold 3 drives the guide rod 5 to slide axially along the inner wall of the limit ring 4, so that during the movement, the movable lower mold 3 and the fixed lower mold 1 are always in an aligned state, and the setting of the anti-slip block 6 can limit the maximum axial movement distance of the movable lower mold 3.

[0023] Please refer to Figure 1 and Figure 2 The first demoulding mechanism includes an upper connecting frame 17 fixedly connected to both sides of the fixed lower mold 1, the upper connecting frame 17 is located above the guide rod 5, and the upper connecting frame 17 extends to one end of the movable lower mold 3, and the upper connecting frame 17 is close to the movable lower mold 3. One end of the upper connecting frame 17 is integrally formed with a front demoulding plate 18 that penetrates the inner cavity of the movable lower mold 3, and the front demoulding plate 18 is located at one end of the inner cavity of the movable lower mold 3 and is flush with the inner cavity side wall of the movable lower mold 3. The second demoulding mechanism includes a lower connecting frame 16 fixedly connected to both sides of the movable lower mold 3, the lower connecting frame 16 extends to one end of the fixed lower mold 1, and one end of the lower connecting frame 16 is close to the fixed lower mold 1. The rear demoulding plate 19 is located at one end of the inner cavity of the fixed lower mold 1 and is flush with the inner cavity side wall of the fixed lower mold 1. The front demoulding plate 18 and the rear demoulding plate 19 are symmetrically arranged in the front and rear directions.

[0024] In this embodiment: when the movable lower mold 3 moves axially, the movable lower mold 3 drives the rear stripper plate 19 to move synchronously through the lower connecting frame 16, and the rear stripper plate 19 extrude the molded handle, causing the molded handle to be separated from the mold cavity of the fixed lower mold 1. Similarly, the upper connecting frame 17 is in a stationary state, while the movable lower mold 3 moves relatively, so the front stripper plate 18 realizes the separation of the molded handle from the mold cavity of the movable lower mold 3, and the handle completely separated from the two mold cavities falls downward from between the fixed lower mold 1 and the movable lower mold 3 under its own weight, completing the demolding.

[0025] Please refer to Figure 3 The locking mechanism includes a fixing ear 10 fixedly connected to one end of the movable lower mold 3 and a connecting plate 11 fixedly connected to the non-rotating end of the upper mold 2. A rotating bolt 13 is rotatably installed on the inner side of the fixing ear 10. A slot 12 for the rotating bolt 13 to rotate is provided inside the connecting plate 11. A rotating nut 14 is threadedly connected to the upper outer wall of the rotating bolt 13. Two connecting ears 15 are fixedly connected to the outer periphery of the rotating nut 14.

[0026] In this embodiment: the connecting ear 15 drives the rotating nut 14 to rotate, and the rotating nut 14 can realize the compression or release of the connecting plate 11. After the compression is released, the upper mold 2 can be opened by rotating the rotating bolt 13 downward.

[0027] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polyurethane seat armrest foaming mold capable of automatic demoulding, comprising a lower mold, an upper mold (2) being rotatably mounted on the top of the lower mold, characterized in that: The non-rotating end of the upper mold (2) is connected to the lower mold in a detachable manner via a locking mechanism, and a feed injection hole is provided on the upper mold (2), and a one-way valve is provided on the feed injection hole; the lower mold comprises a fixed lower mold (1) and a movable lower mold (3), a sealing ring is installed on the butt surface between the fixed lower mold (1) and the upper mold (2), a driving mechanism connected to one end of the movable lower mold (3) is installed on both sides of the fixed lower mold (1), a guide mechanism is installed on both sides of the fixed lower mold (1) and the upper mold (2) above the driving mechanism, a first demoulding mechanism is installed on both sides of the fixed lower mold (1) above the guide mechanism, and the first demoulding mechanism extends to the inner cavity of the movable lower mold (3), and a second demoulding mechanism is installed on both sides of the movable lower mold (3) between the guide mechanism and the drive mechanism, and the second demoulding mechanism extends to the inner cavity of the fixed lower mold (1).

2. The polyurethane seat armrest foaming mold capable of automatic demoulding according to claim 1, characterized in that: The driving mechanism comprises electric push cylinders (7) mounted below both sides of the fixed lower mold (1), the output ends of the two electric push cylinders (7) are fixedly mounted with connecting rods (8), and the ends of the two connecting rods (8) away from the electric push cylinders (7) are fixedly mounted with mounting plates (9), and the mounting plates (9) are fixedly connected to one end of the movable lower mold (3).

3. The polyurethane seat armrest foaming mold capable of automatic demoulding according to claim 2, characterized in that: The guide mechanism comprises guide rods (5) fixedly mounted on both sides of the movable lower die (3) and limit rings (4) fixedly connected to both sides of the fixed lower die (1); the guide rods (5) are slidably connected to the inner wall of the limit rings (4), and an anti-slip block (6) is integrally formed at one end of the guide rod (5).

4. The polyurethane seat armrest foaming mold capable of automatic demoulding according to claim 3, characterized in that: The demoulding mechanism No. 1 comprises an upper connecting frame (17) fixedly connected to both sides of the fixed lower mold (1), the upper connecting frame (17) is located above the guide rod (5), and the upper connecting frame (17) extends to one end of the movable lower mold (3), and the end of the upper connecting frame (17) close to the movable lower mold (3) is integrally formed with a front demoulding plate (18) that penetrates the inner cavity of the movable lower mold (3), and the front demoulding plate (18) is located at one end of the inner cavity of the movable lower mold (3) and is flush with the inner cavity side wall of the movable lower mold (3).

5. The polyurethane seat armrest foaming mold capable of automatic demoulding according to claim 4, characterized in that: The second demoulding mechanism comprises a lower connecting frame (16) fixedly connected to both sides of the movable lower mold (3), the lower connecting frame (16) extending to one end of the fixed lower mold (1), and the end of the lower connecting frame (16) close to the fixed lower mold (1) is integrally formed with a rear demoulding plate (19) penetrating into the inner cavity of the fixed lower mold (1), the rear demoulding plate (19) is located at one end of the inner cavity of the fixed lower mold (1) and is flush with the inner cavity side wall of the fixed lower mold (1), and the front demoulding plate (18) and the rear demoulding plate (19) are symmetrically arranged in the front-to-back direction.

6. The polyurethane seat armrest foaming mold capable of automatic demoulding according to claim 2, characterized in that: The locking mechanism comprises a fixing ear (10) fixedly connected to one end of the movable lower mold (3) and a connecting plate (11) fixedly connected to the non-rotating end of the upper mold (2); a rotating bolt (13) is rotatably mounted on the inner side of the fixing ear (10); a slot (12) is provided inside the connecting plate (11) for the rotating bolt (13) to rotate; a rotating nut (14) is threadedly connected to the upper side of the outer wall of the rotating bolt (13); and two connecting ears (15) are fixedly connected to the outer periphery of the rotating nut (14).

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