A mould for forming a seat

Abstract

This utility model relates to the field of mechanical technology, specifically a mold for forming a chair seat. It includes a forming insert, with top blocks on both the front and rear sides of the forming insert. The upper end of each top block is connected to a top block cylinder. One side of the forming insert has several inclined tops, one end of which is connected to a top plate. One side of the top plate is connected to an ejection cylinder, and one end of the forming block is connected to the top plate. The other end of the forming block passes through the forming insert and has a grooved surface. Compared with existing technologies, the forming insert, in conjunction with several forming components, processes the grooves and other structures on the back of the chair seat. The processed structures are cooled by cooling water channels within the forming insert. Simultaneously, the secondary ejection structure, through the interaction between the forming insert and the top plate, ensures smooth demolding after the chair seat is formed.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically a mold for forming chair seats. Background Technology

[0002] A chair consists of a backrest and a seat. Since the backrest needs to connect to the frame, chassis, gas spring, and other structures, the structure of the backrest often differs between different chair models. Therefore, custom molds need to be designed and manufactured specifically for each backrest structure. Chair molding is mostly done through injection molding. Currently, most molds for seat molding use a single-direction demolding method. However, because the seat is molded at an angle, and the backrest needs to have grooves, undercuts, screw holes, and other structures machined, single-direction demolding cannot guarantee smooth release of the backrest. Summary of the Invention

[0003] This utility model provides a mold for forming chair seats to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, a mold for forming a chair seat is designed, including a forming insert. The forming insert has top blocks on its front and rear sides, and the top blocks are connected to top block cylinders at their upper ends. A number of inclined tops are provided on one side of the forming insert, one end of which is connected to a top plate. One side of the top plate is connected to an ejection cylinder, and one end of the forming block is connected to the top plate. The other end of the forming block passes through the forming insert and has a groove surface.

[0005] The molded insert has a notch on one side near the top plate and a molded surface on the other side.

[0006] The top block has a groove on one side that mates with the top block cylinder.

[0007] The molding surface is provided with several molding grooves.

[0008] The top plate has several screw posts connected to one side via a connecting seat, and the screw posts pass through the molded insert.

[0009] The top plate has several positioning rods on one side, and the surface of the molded insert near the top plate has several positioning holes.

[0010] A support base is provided between the sloping roof and the top plate.

[0011] The surface of the molded insert is provided with several through holes.

[0012] The molded insert is provided with several cooling water channels.

[0013] Compared with the prior art, this utility model uses a molding insert in conjunction with several components that play a molding role to process the grooves and other structures on the back of the seat. The processed structure is then cooled by the cooling water channel inside the molding insert. At the same time, the secondary ejection structure that cooperates with the top plate ensures that the seat can be easily demolded after molding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure when the molded insert and the molded component of this utility model are combined.

[0017] Figure 4 This is a schematic diagram of the structure of the molded insert of this utility model.

[0018] Figure 5 This is a schematic diagram of one side of the recessed part of the molded insert of this utility model.

[0019] Figure 6 This is a structural schematic diagram of the molded insert of this utility model from another perspective.

[0020] Figure 7 This is a schematic diagram of one side of the molding surface of the molding insert of this utility model.

[0021] Figure 8 This is a schematic diagram of the cooling water channel of the molded insert of this utility model.

[0022] Figure 9 This is a schematic diagram of the structure of the top block of this utility model.

[0023] Figure 10 This is a schematic diagram of the structure of the top plate of this utility model.

[0024] Figure 11 This is a schematic diagram of the top plate of this utility model from another perspective. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figures 1 to 11As shown, the molding insert 1 has top blocks 2 on both the front and rear sides. The top block 2 is connected to the top block cylinder 3. The molding insert 1 has several inclined tops 4 on one side. One end of the inclined top 4 is connected to the top plate 5. One side of the top plate 5 is connected to the ejection cylinder 6. One end of the molding block 9 is connected to the top plate 5. The other end of the molding block 9 passes through the molding insert 1 and has a groove surface 10. In actual use, the groove surface 10 cooperates with the external components to process the groove structure required for the back of the chair seat.

[0027] The molding insert 1 has a notch 1-1 on one side near the top plate 5, and a molding surface 1-2 on the other side. The notch 1-1 cooperates with the top plate 5 to prevent interference with the movement of the top plate 5. The molding surface 1-2 cooperates with external components to process the required seat shape.

[0028] The top block 2 has a groove 2-1 on one side that mates with the top block cylinder 3.

[0029] The molding surface 1-2 is provided with several molding grooves 1-3. In actual use, the molding grooves 1-3 cooperate with external components to process the inverted structure required for the back of the chair seat.

[0030] Several screw posts 8 are connected to one side of the top plate 5 via a connecting seat 7. The screw posts 8 pass through the molded insert 1, and the screw hole structure required for the back of the chair seat is machined through the screw posts 8. The surface of the molded insert 1 is provided with connecting grooves 1-4 that mate with the connecting seat 7.

[0031] Several positioning rods 11 are provided on one side of the top plate 5, and several positioning holes 1-5 are provided on the surface of the molded insert 7 near the top plate 5, which serve as positioning functions.

[0032] A support seat 14 is provided between the sloping roof 4 and the top plate 5 to support the sloping roof 4.

[0033] The surface of the molding insert 1 is provided with several through holes 1-6, which facilitates the molding component to pass through the molding insert 1 and process the back of the chair seat.

[0034] The molding insert 1 is provided with several cooling water channels 1-7. During the process of machining the back of the chair seat by mating the molding surface 1-2 with the molding component, cooling water channels are set near the machining area to ensure the machining effect.

[0035] When this utility model is in use, the molding surfaces 1-2 of the molding insert 1 cooperate with other equipment to process the chair seat. When it needs to be removed after processing, the top block cylinder 3 first pushes out, and the top block 2 drives the molding insert 1 to lift the processed chair seat. Then, the ejector cylinder 6 pushes out the top plate 5, and the inclined ejector 4 pushes out the processed chair seat, thus completing the demolding.

[0036] In this utility model, the grooves, undercuts, screw holes and other structures on the back of the chair seat are formed by the cooperation of the molding surface 1-2 and other molding components. Therefore, during demolding, the molding surface 1-2 of the molding insert 1 is first driven by the top block cylinder 3 to push the chair seat out, and then the inclined ejector 4 pushes out the tilted chair seat, thus demolding smoothly.

Claims

1. A mould for forming a seat of a chair, comprising a forming insert, characterized in that: The molding insert (1) is provided with top blocks (2) on the front and rear sides respectively. The top block (2) is connected to the top block cylinder (3) at the upper end. The molding insert (1) is provided with several inclined tops (4) on one side. One end of the inclined top (4) is connected to the top plate (5). One side of the top plate (5) is connected to the ejection cylinder (6). One end of the molding block (9) is connected to the top plate (5). The other end of the molding block (9) passes through the molding insert (1) and is provided with a groove surface (10).

2. A mould for forming a seat as claimed in claim 1, wherein: The molded insert (1) has a notch (1-1) on one side near the top plate (5), and a molded surface (1-2) on the other side.

3. A mould for forming a seat as claimed in claim 1, wherein: The top block (2) has a groove (2-1) on one side that cooperates with the top block cylinder (3).

4. A mould for forming a seat as claimed in claim 2, wherein: The molding surface (1-2) is provided with several molding grooves (1-3).

5. The mold for forming a chair seat according to claim 1, characterized in that: The top plate (5) is connected to several screw posts (8) on one side via a connecting seat (7), and the screw posts (8) pass through the molded insert (1).

6. The mold for forming a chair seat according to claim 1, characterized in that: The top plate (5) is provided with several positioning rods (11) on one side, and the surface of the molded insert (1) near the top plate (5) is provided with several positioning holes (1-5).

7. The mold for forming a chair seat according to claim 1, characterized in that: A support seat (14) is provided between the inclined roof (4) and the top plate (5).

8. The mold for forming a chair seat according to claim 1, characterized in that: The surface of the molded insert (1) is provided with several through holes (1-6).

9. The mold for forming a chair seat according to claim 1, characterized in that: The molded insert (1) is provided with several cooling water channels (1-7).

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