Injection mold for plate deformation demolding

Abstract

The utility model relates to the technical field of injection molding, and discloses an injection mold for deformation demolding of a plate, which is characterized in that deformation components are arranged on two sides of a fixed mold core in a sliding manner, each deformation component is provided with an inverted buckle groove, a first molding groove, a second molding groove and the inverted buckle grooves are communicated to form a sealed molding cavity, and the molding cavity is used for injection molding of a product; the groove bottom of the first forming groove comprises a movable groove bottom and a fixed groove bottom, the movable groove bottom is connected to the fixed groove bottom in a sliding mode, the fixed mold core is provided with a driving assembly used for making the movable groove bottom slide, the movable groove bottom is used for making a product abut out of the first forming groove, a large inverted buckle of the product is completely arranged in the inverted buckle groove, and the deformation assembly drives the inverted buckle groove to move outwards on the two sides of the fixed mold core. At the moment, the inverted buckle groove drives the inverted buckle plate of the product to be pulled outwards, the inverted buckle plate of the product is pulled to deform, the driving assembly enables the movable groove bottom to be separated from the fixed groove bottom and protrude out of the first forming groove, the movable groove bottom abuts against the product out of the first forming groove, and the effect that the large inverted buckle plate is rapidly demolded is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, concretely relates to a kind of injection mould of plate deformation demolding. BACKGROUND

[0002] In injection molding process, mold design and demolding problem is an important factor affecting production efficiency and product quality. Especially in the case of large area reverse buckling of injection molding product, the difficulty of demolding increases significantly, resulting in reduced production efficiency and rising cost. Reverse buckling refers to the part on the mold that blocks the demolding of the product, making it impossible to take the product out of the mold smoothly. SUMMARY

[0003] The utility model intends to provide a kind of injection mould of plate deformation demolding, to solve the problem of large reverse buckling plate demolding difficulty.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a kind of injection mould of plate deformation demolding, including fixed die and movable die, the side of fixed die and movable die mutually close is set with first forming groove and second forming groove respectively, the both sides of fixed die are slidably provided with deformation assembly, deformation assembly is set with reverse buckling groove, first forming groove, second forming groove and reverse buckling groove are communicated and form sealed forming cavity, forming cavity is used for injection product, deformation assembly is used to drive reverse buckling groove to pull product deformation, the groove bottom of first forming groove includes movable groove bottom and fixed groove bottom, movable groove bottom is slidably connected to fixed groove bottom, fixed die is provided with the driving assembly for sliding movable groove bottom, movable groove bottom is used to push product out from first forming groove.

[0005] The beneficial effects of the present scheme are: by setting deformation assembly, deformation assembly is set in fixed die, deformation assembly and fixed die are fixed, movable die is close to fixed die and is attached to fixed die, the shape of the product after injection is the same as the shape of forming groove, after the product is cooled and shaped, the large reverse buckling of the product is completely placed in reverse buckling groove, when demolding, movable die moves and is separated from contact with fixed die, then deformation assembly drives reverse buckling groove to move outward on both sides of fixed die, at this time, reverse buckling groove pulls the reverse buckling plate of product outward, so that the reverse buckling plate of product is deformed by tension, the deformed reverse buckling plate is separated from contact with reverse buckling groove, at this time, driving assembly drives movable groove bottom, so that movable groove bottom is separated from contact with fixed groove bottom and protrudes from first forming groove, compared with the prior art, it has the effect of quickly demolding large reverse buckling plate.

[0006] Further, the deformation assembly includes a sliding frame fixed to the fixed die, a sliding block slidably connected to the sliding frame, and a gas cylinder connected between the sliding block and the sliding frame.

[0007] Further, the fixed die core is slidably connected with a driving rod, and the end of the fixed die core away from the movable die core is slidably connected with a driving plate, the two ends of the driving rod are connected with the driving plate and the movable groove bottom respectively, and the driving plate is used for driving the driving rod to push the movable groove bottom out of the first forming groove.

[0008] Further, the frame is vertically arranged, and the sliding frame and the fixed die core are vertically arranged on the frame.

[0009] Further, the frame is vertically arranged, and the sliding frame and the fixed die core are vertically arranged on the frame.

[0010] The beneficial effects of the scheme are that: the frame is vertically arranged, and the sliding frame and the fixed die core are vertically arranged on the frame, the movable die core needs to be attached to the fixed die core, so the movable die core is horizontally slidably arranged, when the movable groove bottom pushes the product out of the first forming groove, the product can quickly separate from the first forming groove, and in the repeated injection molding process, the movable die core can quickly move and be attached to the fixed die core again, so that the production efficiency can be improved in the assembly line operation environment.

[0011] Further, horizontal clamping structures are arranged between the frame and the sliding frame and between the sliding frame and the fixed die core.

[0012] The beneficial effects of the scheme are that: the sliding frame is vertically arranged on the frame, and the fixed die core is vertically arranged on the sliding frame, so that the horizontal clamping structure is arranged, the horizontal clamping structure is clamped first during installation, and then the installation work is performed, in the injection molding process, the product is formed by being injected into the fixed die core, so that the fixed die core is heavy, the horizontal clamping structure can share the gravity of the sliding frame and the fixed die core, so that the stress of the connecting piece is reduced, and the service life and safety of the mold can be effectively prolonged.

[0013] Further, the horizontal clamping structure is arranged as a protrusion and a groove that are nested with each other.

[0014] Further, the movable die core is provided with a filling groove corresponding to the deformation assembly, and the filling groove is arranged to seamlessly embed the deformation assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure section view of the utility model;

[0016] Figure 2 It is the utility model Figure 1 It is a local structure schematic view of the inverted buckle groove at A in the utility model;

[0017] Figure 3 It is a whole structure explosion schematic view of the utility model;

[0018] Figure 4This is a schematic diagram of the overall structure of the mold core of this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the deformable component of this utility model. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: frame 1, deformable component 11, sliding frame 111, guide groove 1111, slider 112, undercut groove 1121, cylinder 113, drive component 12, fixed mold core 2, first forming groove 21, moving groove bottom 211, drive rod 22, drive plate 23, guide block 231, mounting base 24, longitudinal beam 25, movable cavity 26, moving mold core 3, second forming groove 31, filling groove 32, protrusion 41, groove 42, forming cavity 5.

[0022] Example

[0023] An injection mold for sheet metal deformation and demolding, such as Figures 1-5 As shown, the machine includes a vertically arranged frame 1, with sliding frames 111 symmetrically fixed at both ends of the frame 1. Grooves 42 are symmetrically opened at both ends of the frame 1. A protrusion 41 corresponding to the groove 42 is fixed at the end of the sliding frame 111 near the frame 1. The protrusion 41 is embedded in the groove 42. The sliding frame 111 is fixedly connected to the frame 1 by bolts. A protrusion 41 is also fixedly provided at the end of the sliding frame 111 away from the frame 1. The fixed mold core 2 is U-shaped and includes mounting seats 24 symmetrically arranged on both sides and a longitudinal beam 25 fixed between the mounting seats 24. A movable cavity 26 is formed between the mounting seats 24 on both sides and the longitudinal beam 25. The mounting seats 24 on both sides correspond to the sliding seats at the upper and lower ends of the frame 1, and the bottom end of the mounting seat 24 is provided with a groove 42 for the protrusion 41 to be embedded. The mounting seat 24 is connected to the sliding frame 111 by bolts.

[0024] The first forming groove 21 is provided at the end of the fixed die stem 2 away from the sliding seat, and the groove bottom of the first forming groove 21 comprises a fixed groove bottom fixedly arranged with the fixed die stem 2 and a movable groove bottom 211 horizontally and slidingly connected with the fixed groove bottom. The fixed die stem 2 is slidingly connected with a plurality of driving rods 22 on the longitudinal beam 25, and the driving rods 22 are connected with the movable groove bottom 211. The driving cavity is formed between the upper and lower sliding frames 111 and the rack 1, and the driving plate 23 is horizontally and slidingly connected in the driving cavity. The upper and lower sliding frames 111 are horizontally provided with guide grooves 1111, and the driving plate 23 is fixedly provided with guide blocks 231 corresponding to the guide grooves 1111. The guide blocks 231 are embedded in the guide grooves 1111, and the end of the driving rod 22 away from the movable groove bottom 211 is fixedly connected with the guide plate. A plurality of driving holes are provided at the bottom end of the rack 1, and the driving holes are communicated with the driving cavity. When the mold is installed, an external driving device such as a telescopic rod is installed on the rack 1, the telescopic rod enters the driving cavity through the driving hole and is fixedly connected with the driving plate 23.

[0025] As shown in Figures 1-5 The sliding block 112 is slidingly connected inside the upper and lower sliding frames 111, and the air cylinder 113 is fixedly installed outside. The telescopic rod of the air cylinder 113 is connected with the sliding block 112, and the sliding block 112 and the sliding frame 111 form the deformation assembly 11. The movable die stem 3 is horizontally and slidingly installed on the side opposite to the fixed die stem 2. The movable die stem 3 is provided with the second forming groove 31 at the end close to the fixed die stem 2. The movable die stem 3 is provided with the filling groove 32 at the upper and lower ends, respectively. The filling groove 32 corresponds to the upper and lower deformation assemblies 11. When the movable die stem 3 is attached to the fixed die stem 2, the filling groove 32 is tightly attached to the deformation assembly 11. The movable die stem 3, the fixed die stem 2 and the sliding block 112 after attachment form the forming cavity 5 for injection molding products through the second forming groove 31, the first forming groove 21 and the reverse buckling groove 1121, respectively.

[0026] The working principle is as follows: before injection molding, the movable die core 3 is driven by an external device to move towards the fixed die core 2, and the movable die core 3 is in contact with the fixed die core 2 and is tightly connected, after the connection, the forming cavity 5 is formed between the fixed die core 2, the movable die core 3 and the slider 112, the thermal observation is arranged in the movable die core 3, during injection molding, the thermal flow pipe is connected with an external injection molding machine, and the injection liquid is introduced into the forming cavity 5 through the thermal flow pipe, after the injection molding is completed, the injection head in the thermal flow pipe is automatically disconnected with the injection liquid in the forming cavity 5, after the injection liquid in the forming cavity 5 is cooled, the product is molded and demolding is started, during demolding, the movable die core 3 is first disconnected with the fixed die core 2 and moves away from the fixed die core 2 by an external device, so that one side of the product is exposed, at this time, the large undercut plate of the product is still embedded in the undercut groove 1121, at this time, the cylinder 113 is started to drive outward and drive the slider 112 to slide to both sides, the slider 112 pulls the undercut plate of the product through the undercut groove 1121, so that the undercut plate is deformed under tension, so that the undercut plate is not embedded in the undercut groove 1121, then the external device on one side of the rack 1 is started, the external device drives the telescopic rod to extend, the telescopic rod passes through the driving hole and slides the driving plate 23 in the driving cavity to the movable cavity 26, the driving plate 23 drives the movable groove bottom 211 to move out of the first forming groove 21 through the driving rod 22, the movable groove bottom 211 moves the product out of the first forming groove 21, and the product falls from the mold under the action of gravity, then the related devices are continuously driven to restore the mold to the state before injection molding.

[0027] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be regarded as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An injection mold for deforming and stripping a panel, characterized in that: The fixed die core and the movable die core are provided with a first forming groove and a second forming groove on the side close to each other, and the deformed assembly is slidably arranged on the two sides of the fixed die core, and the deformed assembly is provided with a reverse buckle groove, the first forming groove, the second forming groove and the reverse buckle groove are communicated and form a sealed forming cavity, the forming cavity is used for injection molding products, the deformed assembly is used for driving the reverse buckle groove to deform the products, the groove bottom of the first forming groove comprises a movable groove bottom and a fixed groove bottom, the movable groove bottom is slidably connected to the fixed groove bottom, the fixed die core is provided with a driving assembly for sliding the movable groove bottom, and the movable groove bottom is used for pushing the products out of the first forming groove.

2. Injection mold with deformation stripping of the plate according to claim 1, characterized in that: The deformed assembly comprises a sliding frame fixed to the fixed die core and a sliding block slidably connected to the sliding frame, and the reverse buckle groove is arranged on the sliding block.

3. Injection mold with deformation stripping of the plate according to claim 2, characterized in that: The fixed die core is slidably connected with a driving rod, and the end of the fixed die core away from the movable die core is slidably connected with a driving plate, and the two ends of the driving rod are respectively connected with the driving plate and the movable groove bottom, and the driving plate is used for driving the driving rod to push the movable groove bottom out of the first forming groove.

4. Injection mold with deformation stripping of the plate according to claim 3, characterized in that: The machine frame is further provided, and the end of the sliding frame away from the fixed die core is fixedly connected with the machine frame.

5. The plate deformation stripping injection mold of claim 4, wherein: The machine frame is vertically arranged, and the sliding frame and the fixed die core are vertically installed on the machine frame.

6. The plate deformation stripping injection mold of claim 5, wherein: Horizontal clamping structures are arranged between the machine frame and the sliding frame and between the sliding frame and the fixed die core.

7. The plate deformation stripping injection mold of claim 6, wherein: The horizontal clamping structure is arranged as a convex block and a groove which are nested with each other.

8. Injection mold with deformation stripping of the plate elements according to claim 7, characterized in that: The movable die core is provided with a filling groove corresponding to the deformed assembly, and the filling groove and the deformed assembly are seamlessly embedded with the deformed assembly.

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