Rear suspension product forming die

Abstract

The utility model relates to a rear suspension product forming die which comprises an upper die plate, a middle die and a lower die plate, the middle die comprises a middle die outer frame and a half block used for being matched with the upper die plate and the lower die plate to form a cavity, the half block is sleeved with the middle die outer frame, an annular cavity used for forming a rear suspension product limiting block is formed in the bottom end face of the upper die plate, and the lower die plate is sleeved with the annular cavity. The lower mold plate is provided with a bottom plate cavity used for containing a rear suspension product bottom plate, the half block is provided with a main spring cavity, the upper mold plate is further provided with four glue injection openings, two glue injection openings are product limiting block glue injection openings, the other two glue injection openings are main glue injection openings, the product limiting block glue injection openings are connected with the annular cavity in the upper mold plate, and the lower mold plate is connected with the upper mold plate. A glue injection channel is formed in the Harvard block, and the main glue injection port is communicated with the main spring-shaped cavity through the glue injection channel of the Harvard block. According to the mold, the parting surface is reasonably selected according to product characteristics, so that the mold is more reasonable in structure and good in forming effect, and in addition, the half block is arranged in the middle mold, so that the problem that a product is difficult to strip is solved.

Description

Technical Field

[0001] The utility model relates to a mould, in particular to a mould for forming a rear suspension product. Background Art

[0002] An automotive rear suspension is a component used to support automotive power components, and it also plays a certain shock-absorbing role. The structures of automotive rear suspension products vary according to the installed vehicle models. Generally, they are composed of iron parts and rubber parts, and are prepared by injecting glue and vulcanizing and forming using a mould. Figures 1 - 2 For the shown automotive rear suspension product, the product mainly includes a limit block, an upper skeleton, a main spring, a nut, and a bottom plate. Currently, the mould used for forming this product is composed of an upper template, a middle mould, and a lower template, and mainly has the following deficiencies: 1. The parting surface is not selected according to the characteristics of the product, the mould structure is not reasonable enough, and the forming effect is not good; 2. The Hafer block is not provided, and it is difficult to demould the product after forming; 3. Due to the irregular structure of the iron parts of the product, the mould structure has poor glue sealing, so that there is more glue filled in the cavity of the formed product, and there is also more glue filled in the nut of the product, resulting in difficulties in trimming and waste of glue. Summary of the Invention

[0003] The technical problem to be solved by the utility model is: to provide a mould for forming a rear suspension product. The mould reasonably selects the parting surface according to the characteristics of the product, makes the mould structure more reasonable, and has a good forming effect. In addition, a Hafer block is arranged in the middle mould to solve the problem of difficult demoulding of the product.

[0004] The technical solution for solving the above technical problem is: a mould for forming a rear suspension product, including an upper template, a middle mould, and a lower template. The middle mould includes a middle mould outer frame and a Hafer block used to cooperate with the upper template and the lower template to form a cavity. The Hafer block is sleeved inside the middle mould outer frame. The bottom end surface of the upper template is provided with an annular cavity for forming the limit block of the rear suspension product. The lower template is provided with a bottom plate cavity for placing the bottom plate of the rear suspension product. The Hafer block has a main spring cavity for forming the main spring of the product. Four glue injection ports are also opened on the upper template, two of which are glue injection ports for the product limit block, and the other two are main glue injection ports. The glue injection ports for the product limit block are communicated with the annular cavity on the upper template. A glue injection channel is opened on the Hafer block, and the main glue injection port is communicated with the main spring cavity through the glue injection channel of the Hafer block.

[0005] Further, a convex block is provided in the middle of the annular cavity of the upper template, and a core shaft for penetrating into the nut hole of the rear suspension product is connected to the convex block by a thread.

[0006] Further, a taper fit is adopted between the Hafer block and the middle mould outer frame.

[0007] Furthermore, two inserts are fixed to the bottom end of the Haff block by bolts.

[0008] Furthermore, upper die guide pillars are arranged on the upper template, lower die guide pillars are arranged on the lower template, and middle die guide sleeves that cooperate with the upper die guide pillars and the lower die guide pillars are arranged on the outer frame of the middle die.

[0009] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0010] 1. The parting surface is reasonably selected according to the product characteristics. The parting lines are respectively designed on the upper surface of the upper skeleton of the product and the upper surface of the product bottom plate, so that the middle rubber part remains on the Haff block, which is convenient for demolding. The mold structure is more reasonable and the forming effect is good.

[0011] 2. There are four injection ports. Two injection ports directly inject glue into the annular cavity on the upper template for forming the product limit block, and the other two injection ports directly inject glue into the main spring cavity on the Haff block, and the glue enters from the side of the main spring to ensure that there is no lack of glue on the limit block.

[0012] 3. The surface of the product iron part (insert) is irregular, and the trapezoidal cavity above the product bottom plate is easily filled with glue and cannot be cleared; the utility model adds two inserts and connects the Haff block and the inserts with bolts; after adding the inserts, the amount of glue flowing into the trapezoidal cavity is reduced, saving glue and facilitating trimming.

[0013] 4. The nut cavity of the product is easily filled with glue. A new core shaft is fixed on the upper die. After the die is closed, the core shaft penetrates into the nut. After vulcanization, the flash of the glue in the nut thread is thinner, saving glue and facilitating trimming.

[0014] Next, in combination with the drawings and embodiments, the technical features of a forming die for a rear suspension product of the utility model will be further described. Description of the Drawings

[0015] Figure 1 : Front view of the rear suspension product.

[0016] Figure 2 : Left view of the rear suspension product.

[0017] Figure 3 : Top view of the forming die for the rear suspension product of the utility model.

[0018] Figure 4 : Figure 3 A-A sectional view of

[0019] Figure 5 : Figure 3 B-B sectional view of

[0020] Figure 6: The utility model below the template stereogram.

[0021] Figure 7 : A three-dimensional diagram of the middle mold of the present utility model.

[0022] Figure 8 : Schematic diagram of the Harvard block structure of the present utility model.

[0023] Figure 9 : Figure 8 CC cross-sectional view.

[0024] Figure 10 : One of the above template stereograms of the present utility model.

[0025] Figure 11 : The second stereogram of the above template of the present utility model.

[0026] In the figure: P-rear suspension product, P1-limiting block, P2-upper frame, P3-main spring, P4-nut, P5-base plate.

[0027] 1-upper template, 11-main injection port, 12-bump, 13-product limit block injection port, 14-annular cavity, 2-middle mold, 21-middle mold outer frame, 211-injection channel, 22-Hover block, 221-injection channel, 23-machine connecting frame, 221-injection channel, 3-lower template, 31-bottom plate cavity, 4-core shaft, 5-lower mold guide column, 6-upper mold guide column, 7-insert, 8-bolt. DETAILED DESCRIPTION Example

[0028] A rear suspension product forming mold, such as Figures 3 - 11As shown in the figure, it includes an upper template 1, a middle mold 2 and a lower template 3. The middle mold 2 includes a middle mold outer frame 21, machine table connecting frames 23 installed on both sides of the middle mold outer frame 21, and split blocks 22 for cooperating with the upper template and the lower template to form a cavity. The split blocks 22 are sleeved inside the middle mold outer frame 21. The bottom end surface of the upper template 1 is provided with an annular cavity 14 for forming a limiting block of the rear suspension product after molding. The lower template 3 is provided with a bottom plate cavity 31 for placing the bottom plate of the rear suspension product. The split blocks 22 are provided with a main spring cavity for forming the main spring of the product. Four injection ports are also opened on the upper template 1, two of which are injection ports 13 for the product limiting block, and the other two are main injection ports 11. The injection ports 13 for the product limiting block are communicated with the annular cavity 14 on the upper template. The split blocks 22 are provided with injection channels 221. The main injection ports 11 are communicated with the main spring cavity through the injection channels 221 of the split blocks. The connection line of the center points of the two injection ports 13 for the product limiting block is perpendicular to the connection line of the center points of the two main injection ports 11. During injection, part of the glue material is directly injected into the annular cavity 14 from the injection ports 13 for the product limiting block, and part of the glue material enters from the side of the main spring cavity through the main injection ports 11.

[0029] This mold is a three-plate mold, which is split at the upper surface of the upper skeleton of the product and the upper surface of the product bottom plate, so that the limiting block of the product is formed on the upper template, the bottom plate of the product is located on the lower template, and other parts of the product are arranged in the cavity formed by the cooperation between the split blocks and the upper template and the lower template, that is, most of the cavities are arranged on the split blocks. Four injection ports are machined on the upper template. During vulcanization, the glue material enters the cavity through the injection ports and is vulcanized and formed after high temperature.

[0030] In this embodiment, a convex block 12 is provided in the middle of the annular cavity of the upper template 1. In order to prevent the glue material from overflowing from the hole of the upper skeleton into the product nut hole, a core shaft 4 for penetrating into the product nut hole of the rear suspension is connected to the convex block 12 by threads.

[0031] In this embodiment, in order to prevent the glue material from overflowing into the trapezoidal cavity of the product bottom plate, two inserts 7 are fixed to the bottom end of the split blocks by bolts 8. The split blocks 22 and the middle mold outer frame 21 are in taper fit, that is, the inner hole of the middle mold outer frame and the outer edge of the split blocks are both in the shape of being smaller at the top and larger at the bottom. After molding, the product remains on the split blocks, and the product can be taken out by prying open the split blocks.

[0032] In this embodiment, three upper mold guide columns 6 are provided on the upper template, three lower mold guide columns 5 are provided on the lower template, and middle mold guide sleeves 211 for cooperating with the upper mold guide columns and the lower mold guide columns are provided on the middle mold outer frame 21 for guiding and positioning during mold closing.

Claims

1. A forming die for a rear suspension product, comprising an upper template (1), a middle die (2) and a lower template (3), characterized in that: The middle mold includes a middle mold outer frame (21) and a hafnium block (22) for cooperating with the upper template and the lower template to form a cavity. The hafnium block is sleeved inside the middle mold outer frame. A ring-shaped cavity (14) for forming a limit block for the post-suspension product is provided at the bottom end face of the upper template. A bottom plate cavity (31) for placing the bottom plate of the post-suspension product is provided on the lower template. The hafnium block has a main spring cavity for forming the main spring of the product. Four injection ports are also provided on the upper template. Two of the injection ports are injection ports (13) for the product limit block, and the other two injection ports are main injection ports (11). The injection port (13) for the product limit block communicates with the ring-shaped cavity (14) on the upper template. A glue injection channel (221) is provided on the hafnium block. The main injection port (11) communicates with the main spring cavity through the glue injection channel of the hafnium block.

2. The forming die for a rear mount product according to claim 1, wherein: A convex block (12) is provided in the middle of the ring-shaped cavity of the upper template. A core shaft (4) for passing through the nut hole of the post-suspension product is connected to the convex block by a thread.

3. A forming die for a rear suspension product according to claim 1, characterized in that: A taper fit is provided between the hafnium block and the middle mold outer frame.

4. A forming die for a rear mount product according to claim 1, characterized in that: Two insert blocks (7) are fixed to the bottom end of the hafnium block by bolts (8).

5. A forming die for a rear suspension product according to claim 1, characterized in that: Upper mold guide posts (6) are provided on the upper template, lower mold guide posts (5) are provided on the lower template, and a middle mold guide sleeve (211) for cooperating with the upper mold guide posts and the lower mold guide posts is provided on the middle mold outer frame.

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