Polyurethane foaming mold

Abstract

The utility model discloses a polyurethane foaming mould which comprises an upper mould and a lower mould, both the upper mould and the lower mould are provided with cavities, the two cavities are communicated after the upper mould and the lower mould are assembled, a pressure regulating mechanism is arranged at the outer top of the upper mould, the pressure regulating mechanism is connected with the cavities of the upper mould, and a pouring gate is arranged at the top of the upper mould. The problem of material shortage at the high point of the die can be solved through the pressure adjusting block, gas at the high point is exhausted after the pressure adjusting block extends into the die, and the gas displacement is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a polyurethane foaming mold. Background Art

[0002] The mold for foaming is the plastic foaming mold. The foaming resin is directly filled into the mold, which is heated and melted to form a gas-liquid saturated solution. Through nucleation, a large number of tiny bubble nuclei are formed, and the bubble nuclei grow to form foam plastic parts. There are three commonly used foaming methods: physical foaming, chemical foaming and mechanical foaming.

[0003] When the foaming mold is in use, the dense gas volume at the high point often leads to material shortage, making the entire foaming incomplete. Utility Model Content

[0004] In order to solve the above technical problems, a polyurethane foaming mold is provided.

[0005] To achieve the above-mentioned purpose, the utility model is configured in a preferred embodiment to include an upper mold and a lower mold, both of which are provided with a cavity, and the two cavities are connected after the upper mold and the lower mold are closed, and a pressure regulating mechanism is provided on the outer top of the upper mold, and the pressure regulating mechanism is connected to the upper mold cavity, and a gate is provided at the top of the upper mold.

[0006] In a preferred embodiment, the utility model can be further configured to include an upper mold and a lower mold, both of which are provided with a cavity, and the two cavities are connected after the upper mold and the lower mold are closed, and a pressure regulating mechanism is provided on the outer top of the upper mold, and the pressure regulating mechanism is connected to the upper mold cavity, and a gate is provided at the top of the upper mold, and the pressure regulating mechanism includes a pressure regulating block, and the pressure regulating block is connected to a lifting block, and the lifting block is driven by a telescopic cylinder.

[0007] In a preferred embodiment, the utility model can be further configured to include an upper mold and a lower mold, both of which are provided with a cavity, and the two cavities are connected after the upper mold and the lower mold are closed, and a pressure regulating mechanism is provided on the outer top of the upper mold, and the pressure regulating mechanism is connected to the upper mold cavity, and a gate is provided at the top of the upper mold, and the pressure regulating mechanism includes a pressure regulating block, and the pressure regulating block is connected to a lifting block, and the lifting block is driven by a telescopic cylinder, and the block body of the pressure regulating block is provided with a circumferential groove and a longitudinal groove.

[0008] The utility model can be further configured in a preferred embodiment to include an upper mold and a lower mold, both of which are provided with a cavity, and the two cavities are connected after the upper mold and the lower mold are closed, and a pressure regulating mechanism is provided on the outer top of the upper mold, and the pressure regulating mechanism is connected to the upper mold cavity, and a gate is provided at the top of the upper mold, and the pressure regulating mechanism includes a pressure regulating block, and the pressure regulating block is connected to a lifting block, and the lifting block is driven by a telescopic cylinder, and a circumferential groove and a longitudinal groove are provided on the block body of the pressure regulating block, and the depth of the groove is 0.08mm.

[0009] The utility model can be further configured as follows in a preferred embodiment, including an upper mold and a lower mold, both of which are provided with a cavity, and the two cavities are connected after the upper mold and the lower mold are closed, and a pressure regulating mechanism is provided at the outer top of the upper mold, and the pressure regulating mechanism is connected to the upper mold cavity, and a gate is provided at the top of the upper mold, and the pressure regulating mechanism includes a pressure regulating block, and the pressure regulating block is connected to the lifting block, and the lifting block is driven by a telescopic cylinder, and the block body of the pressure regulating block is provided with a surrounding groove and a longitudinal groove, and the depth of the groove is 0.08mm, and a plug is provided at the gate, and the plug is connected to a movable arm, and the movable arm is driven by the telescopic cylinder to flip.

[0010] In a preferred embodiment, the utility model can be further configured to include an upper mold and a lower mold, both of which are provided with a cavity, and the two cavities are connected after the upper mold and the lower mold are closed, and a pressure regulating mechanism is provided on the outer top of the upper mold, and the pressure regulating mechanism is connected to the upper mold cavity, and a gate is provided at the top of the upper mold, and the pressure regulating mechanism includes a pressure regulating block, and the pressure regulating block is connected to the lifting block, and the lifting block is driven by a telescopic cylinder, and a circumferential groove and a longitudinal groove are provided on the block body of the pressure regulating block, and the depth of the groove is 0.08mm, and a plug is provided at the gate, and the plug is connected to a movable arm, and the movable arm is turned over by the telescopic cylinder, and a connecting seat is provided on the outer side of the lower mold, and a connecting arm is provided on the same side of the upper mold, and the connecting seat is hinged to the connecting arm.

[0011] In a preferred embodiment, the utility model can be further configured as including an upper mold and a lower mold, both of which are provided with a cavity, and the two cavities are connected after the upper mold and the lower mold are closed, a pressure regulating mechanism is provided on the outer top of the upper mold, the pressure regulating mechanism is connected to the upper mold cavity, a gate is provided at the top of the upper mold, the pressure regulating mechanism includes a pressure regulating block, the pressure regulating block is connected to the lifting block, the lifting block is driven by a telescopic cylinder, a circumferential groove and a longitudinal groove are provided on the block body of the pressure regulating block, the depth of the groove is 0.08mm, a plug is provided at the gate, the plug is connected to a movable arm, and the movable arm is turned over by the telescopic cylinder, a connecting seat is provided on the outer side of the lower mold, a connecting arm is provided on the same side of the upper mold, the connecting seat is hinged to the connecting arm, a pin is provided on the side of the connecting seat, the pin is driven to extend and retract by the telescopic cylinder, and the pin is plugged into the corresponding socket on the connecting arm after turning.

[0012] Beneficial effect: The utility model provides a polyurethane foaming mold, which can solve the problem of material shortage at the high point of the mold through the pressure regulating block. After the pressure regulating block is inserted, the gas at the high point is discharged and the exhaust volume is controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the voltage regulating block of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the voltage regulating mechanism of the utility model.

[0017] In the figure, 1 is the upper mold; 2 is the lower mold; 3 is the gate; 4 is the plug; and 5 is the pressure regulating block. DETAILED DESCRIPTION

[0018] 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 protection scope of the utility model.

[0019] like Figure 1-3As shown, a polyurethane foaming mold includes an upper mold 1 and a lower mold 2, both of which are provided with a cavity. After the upper mold 1 and the lower mold 2 are molded together, the two cavities are connected, and a pressure regulating mechanism is provided on the outer top of the upper mold 1. The pressure regulating mechanism is connected to the cavity of the upper mold 1, and a gate 3 is provided on the top of the upper mold 1. The internal gas volume is adjusted by the pressure regulating mechanism to ensure that there is no shortage of material at the high point.

[0020] The pressure regulating mechanism comprises a pressure regulating block, the pressure regulating block is connected to a lifting block, and the lifting block is driven by a telescopic cylinder.

[0021] The block body of the pressure regulating block is provided with a circumferential groove and a longitudinal groove, the depth of the groove is 0.08 mm, and the gas at the high point can be accurately discharged through the circumferential and longitudinal grooves.

[0022] A plug 4 is provided at the gate 3, and the plug 4 is connected to a movable arm. The movable arm is turned over by a telescopic cylinder. An automatic plug 4 is adopted, and manual plugging is not required.

[0023] A connecting seat is provided on the outer side of the lower mold 2, and a connecting arm is provided on the same side of the upper mold 1. The connecting seat and the connecting arm are hinged. A connecting seat is provided on the outer side of the lower mold 2, and a connecting arm is provided on the same side of the upper mold 1. The connecting seat and the connecting arm are hinged to prevent the upper mold from closing due to lack of fixation after being flipped.

[0024] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity from another entity, but do not necessarily require or imply the existence of any such actual relationship or order between these entities.

[0025] The above examples are merely illustrative of the present utility model and do not constitute a limitation on the protection scope of the present utility model. All designs that are identical or similar to the present utility model fall within the protection scope of the present utility model.

Claims

1. A polyurethane foaming mold, characterized in that: The invention comprises an upper mold (1) and a lower mold (2), wherein the upper mold (1) and the lower mold (2) are both provided with a cavity, and the two cavities are connected after the upper mold (1) and the lower mold (2) are closed, and a pressure regulating mechanism is provided on the outer top of the upper mold (1), and the pressure regulating mechanism is connected to the cavity of the upper mold (1), and a gate (3) is provided on the top of the upper mold (1).

2. A polyurethane foaming mold according to claim 1, characterized in that: The pressure regulating mechanism comprises a pressure regulating block, the pressure regulating block is connected to a lifting block, and the lifting block is driven by a telescopic cylinder.

3. A polyurethane foaming mold according to claim 2, characterized in that: The block body of the voltage regulating block is provided with a surrounding groove and a longitudinal groove.

4. A polyurethane foaming mold according to claim 3, characterized in that: The depth of the groove is 0.08 mm.

5. A polyurethane foaming mold according to claim 4, characterized in that: A plug (4) is provided at the gate (3), and the plug (4) is connected to a movable arm, and the movable arm is driven by a telescopic cylinder to turn over.

6. A polyurethane foaming mold according to claim 5, characterized in that: A connecting seat is provided on the outer side of the lower mold (2), and a connecting arm is provided on the same side of the upper mold (1), and the connecting seat is hinged to the connecting arm.

7. A polyurethane foaming mold according to claim 6, characterized in that: A latch is arranged on the side of the connecting seat, and the latch is driven to be extended and retracted by a telescopic cylinder, and the latch is plugged into a corresponding socket on the connecting arm after flipping.

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