Mould opening foaming mould

Abstract

The utility model relates to a mold opening foaming mold. The mold opening foaming mold comprises an upper mold (1) and a lower mold (2) which are oppositely arranged, foaming cavities (21) and a foaming material intake bin (22) are arranged in the lower mold (2), the multiple foaming cavities (21) are annularly arranged on the outer circle of the foaming material intake bin (22) and communicated with the foaming material intake bin (22), and an intake bin inner container (11) corresponding to the foaming material intake bin (22) is arranged on the upper mold (1). Compared with the prior art, multi-cavity foaming can be realized, the production period is shortened, and the production efficiency is improved.

Description

Technical Field

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

[0002] In the automotive industry, open-mold foaming technology contributes to vehicle lightweighting, reducing fuel consumption or increasing the range of electric vehicles. Conventional small open-mold foaming molds typically use a foaming machine to inject foam material into the foaming cavity one by one while the mold is open. The mold is then closed, allowing the foam material to expand and form within the foaming cavity in a very short time. The mold is then opened and the foam material is removed one by one. Due to the need to inject foam material one by one and the foaming cycle time is completed within 4-8 seconds, these limitations prevent the mold from having multiple cavities. The operator is also required to complete the multi-cavity injection work in the shortest possible time, otherwise the scrap rate will increase, which is a very demanding requirement. Utility Model Content

[0003] The purpose of the utility model is to provide an open mold foaming mold, which can realize multi-cavity foaming.

[0004] The purpose of the utility model can be achieved by the following technical solutions: an open mold foaming mold, comprising an upper mold and a lower mold arranged relatively;

[0005] The lower mold is provided with a foaming cavity and a foaming material intake bin, a plurality of foaming cavity rings are arranged on the outer ring of the foaming material intake bin and are connected with the foaming material intake bin, and the upper mold is provided with an intake bin liner corresponding to the foaming material intake bin.

[0006] Preferably, two foaming material intake bins are provided in the lower mold, and four foaming cavities are evenly arranged on the outer circle of each foaming material intake bin.

[0007] Preferably, the cross-section of the foaming material intake bin is circular, the top of the foaming cavity on the side close to the foaming material intake bin is flush with the top of the foaming material intake bin, and a foaming material conveying groove connected to the foaming cavity is provided on the side wall of the foaming material intake bin.

[0008] Further preferably, the bottom of the foaming material conveying trough is higher than the foaming cavity and the foaming material intake bin, and the top is flush with the foaming material intake bin.

[0009] Preferably, the intake bin liner is connected to a driving component for driving it to move closer to or away from the foaming material intake bin.

[0010] Further preferably, the driving assembly includes a cylinder, which is arranged on the upper mold and drives the inner liner of the intake bin through a piston rod.

[0011] More preferably, the cylinder is fixed on the top of the upper mold, the intake bin liner is arranged on the bottom of the upper mold, and the upper mold is provided with an avoidance hole for the movement of the piston rod and the intake bin liner.

[0012] Preferably, the foaming material intake bin is a truncated cone-shaped groove with a larger upper portion and a smaller lower portion opened on the lower mold, and the bottom of the intake bin inner liner is a truncated cone-shaped boss with a larger upper portion and a smaller lower portion that matches the shape of the foaming material intake bin.

[0013] Preferably, the horizontal dimension of the inner liner of the intake bin is smaller than that of the foaming material intake bin, and when the inner liner extends into the foaming material intake bin, there is a gap between the inner liner and the side wall of the foaming material intake bin in the horizontal direction.

[0014] Preferably, an exhaust channel is provided on the upper mold.

[0015] Preferably, the upper mold is provided with a molding protrusion corresponding to the foaming cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The utility model can realize multi-cavity foaming by coordinating the foaming material intake chamber with the intake chamber liner, which is beneficial to shorten the production cycle and improve production efficiency;

[0018] 2. The utility model uses a cylinder to drive the inner liner of the intake bin to move, that is, the cylinder assists intake, which can effectively control the amount of foaming material entering the foaming cavity from the foaming material intake bin, which is conducive to improving the flexibility and reliability of the mold;

[0019] 3. The utility model enables the operator to achieve one-time intake without changing the working time of the original multi-cavity intake, and completes multi-cavity foaming molding with the cooperation of the foam material intake bin and the intake bin liner;

[0020] 4. The utility model changes the original one-out-two to one-out-eight, shortening the production cycle and improving production efficiency;

[0021] 5. The utility model can be made into standard parts for different mold intake bins, shortening the mold production cycle and gaining valuable time for early production of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the lower mold of the open foaming mold of Comparative Example 1;

[0023] Figure 2 This is a schematic structural diagram of the lower mold of the open mold foaming mold of the utility model;

[0024] Figure 3 This is a structural diagram of the upper mold of the mold opening foaming mold of the utility model;

[0025] In the figure: 1-upper mold, 11-intake chamber liner, 12-driving assembly, 2-lower mold, 21-foaming cavity, 22-foaming material intake chamber. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0028] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0029] Comparative Example 1

[0030] A mold opening foaming mold, such as Figure 1 As shown, two foaming cavities 21 are provided on the lower mold 2. When foaming is performed, a foaming intake machine is used to inject the foaming material into the foaming cavity 21 one by one in the case of the mold being open, and then the mold is closed to allow the foaming material to expand and form in the foaming cavity in a very short time, and then the mold is opened to take out the foaming material one by one.

[0031] Example 1

[0032] A mold opening foaming mold, such as Figure 2 As shown, the lower mold 2 is provided with a plurality of foaming cavities 21 and a foaming material intake bin 22. The plurality of foaming cavities 21 are evenly arranged around the outside of the foaming material intake bin 22 and are connected to the foaming material intake bin 22. Figure 3 As shown, the upper mold 1 is provided with an intake bin liner 11 corresponding to the foaming material intake bin 22.

[0033] The working principle of the mold of this embodiment is: when the mold is open, the foaming material is injected into the foaming material intake chamber 22 one by one in each cavity, and then the mold is closed. The intake chamber liner 11 squeezes the foaming material in the foaming material intake chamber 22 into the foaming cavity 21, so that the foaming material expands and forms in the foaming cavity 21 in a very short time, and then the mold is opened to take out the foaming material one by one.

[0034] Example 2

[0035] An open mold foaming mold. In this embodiment, two foaming material intake bins 22 are provided on the lower mold 2, and four foaming cavities 21 are evenly arranged on the outer circle of each foaming material intake bin 22.

[0036] Furthermore, in this embodiment, the foaming material intake bin 22 is a truncated cone-shaped groove with a larger top and a smaller bottom, formed on the lower mold 2. A foaming material delivery trough communicating with the foaming chamber 21 is formed on the sidewall of the foaming material intake bin 22. The top of the intake bin liner 11 is connected to the drive assembly 12, and the bottom is a truncated cone-shaped boss with a larger top and a smaller bottom that matches the shape of the foaming material intake bin 22. The horizontal dimension of the truncated cone-shaped boss is smaller than that of the truncated cone-shaped groove. The rest of the structure is the same as in Example 1.

[0037] Example 3

[0038] A mold opening foaming mold, in this embodiment, the drive assembly 12 includes a cylinder, which is fixed to the top of the upper mold 1, and the intake chamber liner 11 is set at the bottom of the upper mold 1 and is moved closer to or away from the foaming material intake chamber 22 by the cylinder piston rod. The rest is the same as in Example 2.

[0039] The working principle of the mold of this embodiment is: when the mold is open, the foaming material is injected into the foaming material intake bin 22 one by one, and then the mold is closed. At the same time when the mold is closed, the cylinder starts to work, and the cylinder pushes the inner liner 11 of the intake bin to squeeze the foaming material into the foaming cavity 21. Under the heating state, the foaming material expands and forms in the foaming cavity 21 in a very short time, and then the mold is opened to take out the foaming material one by one.

[0040] This embodiment adds a cylinder-assisted intake chamber on the basis of a conventional mold opening foaming mold, and enables the operator to achieve one-time intake without changing the original multi-cavity intake working time and complete multi-cavity foaming molding with the cooperation of the cylinder-assisted intake chamber.

[0041] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A mold opening foaming mold, characterized in that, It comprises an upper die (1) and a lower die (2) which are arranged relatively; The lower mold (2) is provided with a foaming cavity (21) and a foaming material intake bin (22); a plurality of foaming cavities (21) are arranged in an outer ring of the foaming material intake bin (22) and are in communication with the foaming material intake bin (22); and the upper mold (1) is provided with an intake bin liner (11) corresponding to the foaming material intake bin (22).

2. The open mold foaming mold according to claim 1, characterized in that: Two foaming material intake bins (22) are provided in the lower mold (2), and four foaming cavities (21) are evenly arranged around the outer ring of each foaming material intake bin (22).

3. The open mold foaming mold according to claim 1, characterized in that: The cross section of the foaming material intake bin (22) is circular, the top of the foaming cavity (21) on the side close to the foaming material intake bin (22) is flush with the top of the foaming material intake bin (22), and a foaming material conveying groove connected to the foaming cavity (21) is opened on the side wall of the foaming material intake bin (22).

4. The open mold foaming mold according to claim 3, characterized in that: The bottom of the foaming material conveying trough is higher than the foaming cavity (21) and the foaming material intake bin (22), and the top is flush with the foaming material intake bin (22).

5. The open mold foaming mold according to claim 1, characterized in that: The intake bin liner (11) is connected to a driving assembly (12) for driving it to move closer to or away from the foaming material intake bin (22).

6. The open mold foaming mold according to claim 5, characterized in that: The driving assembly comprises a cylinder, which is arranged on the upper mold (1) and drives the intake chamber liner (11) through a piston rod.

7. The open mold foaming mold according to claim 6, characterized in that: The cylinder is fixed on the top of the upper mold (1), the intake chamber liner (11) is arranged on the bottom of the upper mold (1), and the upper mold (1) is provided with an avoidance hole for the movement of the piston rod and the intake chamber liner (11).

8. The open mold foaming mold according to claim 1, characterized in that: The foaming material intake bin (22) is a truncated cone-shaped groove with a larger top and a smaller bottom, which is provided on the lower mold (2). The bottom of the intake bin liner (11) is a truncated cone-shaped boss with a larger top and a smaller bottom, which matches the shape of the foaming material intake bin (22).

9. The open mold foaming mold according to claim 1, characterized in that: The intake bin liner (11) has a smaller horizontal dimension than the foaming material intake bin (22), and when inserted into the foaming material intake bin (22), there is a gap between the intake bin liner (11) and the side wall of the foaming material intake bin (22) in the horizontal direction.

10. The open mold foaming mold according to claim 1, characterized in that: The upper mold (1) is provided with an exhaust channel and a molding protrusion corresponding to the foaming cavity (21).

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