CN222451212U - An injection mold - Google Patents

Abstract

The present application relates to an injection mold, which relates to the field of mold technology, and includes a demoulding mechanism, wherein the demoulding mechanism includes a plurality of sliders, a pusher and a bundle block, wherein the slider corresponds to the product cavity one by one and is partially located in the product cavity, and the slider slides in the installation cavity; the bundle block is fixed to the female mold core, and the bundle block is arranged between two adjacent sliders and conflicts with the slider; the pusher corresponds to the slider one by one; when the mold is opened, the female mold is driven to move to the side away from the male mold to drive the female mold core and the bundle block to move, the bundle block releases the restriction on the slider, and the pusher pushes the slider to move to the side away from the product. The present application reduces the occupied space of the demoulding mechanism in the multi-cavity mold by designing sliders, pushers and bundle blocks in coordination with each other, has a simple and reasonable structure, can effectively utilize the internal space of the mold, and can ensure the normal progress of the demoulding process, thereby improving production efficiency and product quality.

Description

Injection mold

Technical Field

The application relates to the technical field of molds, in particular to an injection mold.

Background

The multi-cavity die is high-efficiency processing equipment in modern industrial production, and a plurality of cavities are formed in the die, so that a plurality of products can be molded at the same time, and the production efficiency and economic benefit are greatly improved. The multi-cavity mold is widely applied to the fields of automobiles, electronics, household appliances and the like, and becomes an indispensable tool in the modern manufacturing industry.

In a multi-cavity mold, each product requires a corresponding slide for demolding. In actual production, in order to ensure the stability and durability of the die, the slide block structure is complex and the number of parts is large, so that a large ejection space is required to be reserved in the die to ensure the normal operation of the slide block, but the method leads to overlarge space required by the demoulding of the internal slide block, so that the distance between adjacent products is large, and the production efficiency and economic benefit of the die are affected.

Therefore, there is a need to develop a multi-cavity mold capable of reducing the space occupied by the internal slide and ensuring the normal operation of the slide.

Disclosure of utility model

In order to develop a multi-cavity mold capable of reducing the occupied space of an internal sliding block and ensuring the normal operation of the sliding block, the application provides an injection mold.

The injection mold provided by the application adopts the following technical scheme:

An injection mold comprises a male mold and a female mold, wherein a male mold core and a female mold core are respectively arranged on the male mold and the female mold, and an installation cavity and a plurality of product cavities are arranged between the female mold core and the male mold core;

The mold stripping mechanism is arranged in the mounting cavity and comprises a plurality of sliding blocks, pushing pieces and a binding block, wherein the sliding blocks correspond to the product cavities one by one and are partially positioned in the product cavities, the sliding blocks slide in the mounting cavity, the binding block is fixed on the female mold core, the binding block is arranged between two adjacent sliding blocks and is abutted to the sliding blocks, the pushing pieces correspond to the sliding blocks one by one, when the mold is opened, the female mold core is driven to move and the binding block is driven to move, the binding block releases the limitation on the sliding blocks, and the pushing pieces push the sliding blocks to move towards one side far away from the product cavities.

According to the technical scheme, when the die is opened, the female die is driven to move towards the side far away from the male die, the female die core is driven to move together with the binding block, the movement of the female die core drives the binding block to move, the limit on the sliding blocks is relieved, at the moment, the pushing piece pushes the sliding blocks to move towards the side far away from the product cavity, so that the sliding blocks are separated from a formed product in the product cavity, and the simultaneous demolding work of a plurality of sliding blocks and the product in the multi-cavity die is realized.

In a specific embodiment, the pushing member includes a spring, the slider is provided with a groove, the spring is disposed in the groove, one end of the spring abuts against the inner wall of the male die core, and the other end abuts against the bottom wall of the groove.

According to the technical scheme, when the die is closed, the binding blocks are propped against the two adjacent sliding blocks, at the moment, the springs in the grooves of the sliding blocks are propped against the binding blocks, the springs can be propped against the inner wall of the male die core and the bottom wall of the groove, the springs can compress the accumulated force, in the process, one end of each spring is propped against the inner wall of the male die core, the other end of each spring is propped against the bottom wall of the groove, the springs can work stably at proper positions, when the die is opened, the binding blocks release the limit of the two adjacent sliding blocks, at the moment, the springs can assist to push the sliding blocks to move towards one side far away from the product cavity, so that the sliding blocks are separated from a formed product in the product cavity, and demoulding is completed.

In a specific implementation manner, the beam block is provided with two first inclined planes, the sliding block is provided with a second inclined plane, and the first inclined planes are abutted against and attached to the second inclined planes of the adjacent sliding blocks.

By adopting the technical scheme, the binding design of the first inclined plane and the second inclined plane can ensure that the binding block and the sliding block can be tightly connected in the demoulding process, looseness or dislocation is avoided, the binding block and the sliding block are smoothly separated in the demoulding process, more convenient demoulding operation is provided, and in the resetting process, the collision binding of the first inclined plane and the second inclined plane can also provide accurate alignment, so that the binding block and the sliding block can be quickly restored to the initial position.

In a specific implementation manner, the mold further comprises a plurality of inclined guide posts, wherein the inclined guide posts are in one-to-one correspondence with the sliding blocks, the inclined guide posts are fixed on the female mold core, and the inclined guide posts are inserted into the sliding blocks and slide in the sliding blocks.

By adopting the technical scheme, the inclined guide post is inserted into the sliding block and slides in the sliding block, so that stable movement and position adjustment of the sliding block can be realized, the demolding speed and position can be controlled, the inclined guide post plays a role in guiding and supporting the sliding block, and the stability and accuracy of the sliding block in the demolding and resetting processes are ensured.

In a specific embodiment, an angle formed between the first inclined plane and the vertical direction is set as a, an angle formed between the inclined guide post and the vertical direction is set as b, and a is greater than b.

Through adopting above-mentioned technical scheme, utilize to set for the inclination of first inclined plane and be greater than the inclination of oblique guide pillar, help reducing the resistance in the slip in-process and can guide the motion of slider effectively, realize the guide performance that resets, ensure smooth removal and the accurate reset of slider in the drawing of patterns in-process, improve the stability and the accuracy of slider in the cycle of moulding plastics in succession to improve the production efficiency and the product quality of mould.

In a specific embodiment, said a is 1 ° -3 ° greater than said b.

In a specific embodiment, the bottom surface of the oblique guide post is an arc surface.

Through adopting above-mentioned technical scheme, the design of arc surface can provide great fault tolerance, can improve the inclined guide pillar and take off the membrane and remove with the accuracy that resets and remove to the design of arc surface can reduce the instability that arouses because of friction or resistance, makes the slip more smooth and easy.

In a specific implementation manner, the mold further comprises a pressing plate, the pressing plate is arranged on the male mold core, the sliding block is fixed in the installation cavity through the pressing plate, and the sliding block is in contact with the pressing plate and slides on the pressing plate.

Through adopting above-mentioned technical scheme, utilize the clamp plate to fix the slider at the installation intracavity, fix the position of slider effectively for the slider can closely laminate injection mold's other parts, has ensured the leakproofness and the stability of mould in the injection molding process, and the structure of mould has been simplified in the design of clamp plate, reduces the spare part quantity in the mould, reduces the complexity of assembly and maintenance, improves the reliability and the life of mould.

In a specific implementation manner, the device further comprises a limit screw, wherein the limit screw is arranged in the mounting cavity and fixed on the pressing plate, and the limit screw is arranged between two adjacent sliding blocks and leaves a moving space with the sliding blocks.

By adopting the technical scheme, the limit screw is used for limiting the slide block to move only in a preset range in the demolding process, so that the damage of the mold or the production interruption caused by the slide block exceeding the preset range is prevented, and the moving space between the slide block and the limit screw can facilitate the smooth demolding movement or resetting of the slide block.

In a specific embodiment, the beam block is provided with a boss structure, and the boss structure is clamped on two adjacent sliding blocks.

Through adopting above-mentioned technical scheme, the design of boss structure can strengthen the connection stability between beam block and the slider, prevents that the beam block from breaking away from with the slider in the operation process, ensures the stability and the reliability of whole structure to boss structure card can provide extra location support on the slider, ensures that the beam block keeps the correct location at the in-process that resets.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The injection mold disclosed by the application has the advantages that the occupied space of the sliding block demoulding mechanism in the multi-cavity mold is reduced through the mutual matching of the designs of the sliding block, the pushing piece and the binding block, the structure is simple and reasonable, the number and complexity of parts in the mold are reduced, the space in the mold can be effectively utilized, the compactness and the efficiency of the mold are improved through effectively utilizing the space in the mold, so that more product cavities can be arranged in the mold with the same size, and the production capacity and the efficiency are improved;

2. The injection mold can ensure tight connection between the beam block and the sliding block in the demolding process by utilizing the bonding design of the first inclined plane and the second inclined plane, avoid loosening or dislocation, enable the beam block and the sliding block to be smoothly separated in demolding, provide more convenient demolding operation, and enable the beam block and the sliding block to be quickly restored to the initial position by abutting and bonding of the first inclined plane and the second inclined plane in the resetting process.

3. The injection mold provided by the application has the advantages that the limiting screw is used for limiting the sliding block to move only in a preset range in the demolding process, so that the damage or the production interruption of the mold caused by the sliding block exceeding the preset range is prevented, and the moving space between the sliding block and the limiting screw can facilitate the smooth demolding movement or resetting of the sliding block.

Drawings

FIG. 1 is a schematic diagram showing the structures of a male mold insert and a female mold insert according to an embodiment of the application.

Fig. 2 is a cross-sectional view for showing a demolding mechanism in an embodiment of the present application.

FIG. 3 is a cross-sectional view showing a slider, a diagonal post, and a binding block in an embodiment of the present application.

The reference numerals are 1, a male die, 11, a male die core, 2, a female die, 21, a female die core, 5, a demoulding mechanism, 51, a sliding block, 511, a groove, 512, a second inclined plane, 52, a pushing piece, 521, a spring, 53, a beam block, 531, a first inclined plane, 54, an inclined guide pillar, 55, a limit screw, 6, a pressing plate, 7, a material head, 8, a main flow channel, 9, a split flow channel, 91, a cross flow channel, 92, an inclined flow channel, 93, a vertical flow channel, 10 and a cold material groove.

Detailed Description

The application is described in further detail below with reference to fig. 1-3.

Referring to fig. 1 and 2, an embodiment of the application discloses an injection mold, which comprises a male mold 1 and a female mold 2, wherein a male mold core 11 and a female mold core 21 are respectively arranged on the male mold 1 and the female mold 2, a mounting cavity 3 and a plurality of product cavities 4 are arranged between the female mold core 21 and the male mold core 11, and in the embodiment, the product cavities 4 comprise but are not limited to 4;

The injection mold further comprises a demolding mechanism 5, the demolding mechanism 5 is arranged in the mounting cavity 3, the demolding mechanism 5 comprises a plurality of sliding blocks 51, pushing pieces 52 and binding blocks 53, in the embodiment, the number of the sliding blocks 51 is 4, the number of the pushing pieces 52 is 4, the number of the binding blocks 53 is 2, and 1 binding block 53 is arranged corresponding to 2 sliding blocks 51;

The binding blocks 53 are fixed on the female mold core 21, in this embodiment, the binding blocks 53 include, but are not limited to, being fixed on the female mold core 21 by bolts, two binding blocks 53 are respectively arranged between two adjacent sliding blocks 51, and the binding blocks 53 are abutted against the two adjacent sliding blocks 51;

The injection mold further comprises a pressing plate 6, wherein the pressing plate 6 is arranged on the male mold core 11, in the embodiment, the pressing plate 6 comprises but is not limited to being fixed on the male mold core 11 through bolts, the sliding block 51 is fixed in the installation cavity 3 through the pressing plate 6, one side, far away from the pressing plate 6, of the sliding block 51 is abutted against the beam block 53 by the pressing plate 6, the sliding block 51 is abutted against the pressing plate 6 and slides on the pressing plate 6 along the pressing plate 6, the sliding block 51 is fixed in the installation cavity 3 by the pressing plate 6, the position of the sliding block 51 is effectively fixed, the sliding block 51 can be tightly attached to other parts in the installation cavity 3 of the injection mold, the tightness and the stability of the injection mold in the injection molding process are ensured, the structure of the mold is simplified by the design of the pressing plate 6, the number of parts in the mold is reduced, the complexity of assembly and maintenance is reduced, and the reliability and the service life of the mold are improved;

The pushing pieces 52 are arranged in one-to-one correspondence with the sliding blocks 51, the pushing pieces 52 comprise springs 521, the sliding blocks 51 are provided with grooves 511, the springs 521 are arranged in the grooves 511, one ends of the springs 521 are abutted against the inner wall of the male die core 11, and the other ends of the springs 521 are abutted against the bottom wall of the grooves 511;

Before use, the spring 521 is arranged in the groove 511 of the sliding block 51, the sliding block 51 is arranged in the installation cavity 3, the pressing plate 6 is connected with the male die core 11 by using a bolt, the pressing plate 6 fixes the sliding block 51 in the installation cavity 3, the pressing plate 6 abuts against the beam block 53 in the installation cavity 3 and other parts, when the die is closed, the beam block 53 abuts against two adjacent sliding blocks 51, at the moment, the spring 521 in the groove 511 of the sliding block 51 is abutted against the beam block 53, the spring 521 abuts against the inner wall of the male die core 11 and the groove bottom wall of the groove 511, and the spring 521 compresses the accumulated force, when the die is opened, the female die 2 is driven to move away from the male die 1, the female die core 21 and the beam block 53 are driven to move together, the beam block 53 is driven to move, the beam block 53 is released from the restriction of the two adjacent sliding blocks 51, at the moment, the spring 521 can assist to push the sliding block 51 to move away from the side of the product cavity 4, the molded product in the product cavity 4 is separated, and therefore a plurality of sliding blocks 51 in the die are simultaneously operated with the product in the die;

The application reduces the occupied space of the demoulding mechanism 5 of the sliding block 51 in the multi-cavity mould by the mutual matching of the designs of the sliding block 51, the pushing piece 52 and the beam block 53, has simple and reasonable structure, reduces the number and complexity of parts in the mould, can more effectively utilize the space in the mould, improves the compactness and the efficiency of the mould by effectively utilizing the space in the mould, so that more product cavities 4 can be arranged in the mould with the same size, thereby improving the production capacity and the efficiency, and the coordinated action among the sliding block 51, the pushing piece 52 and the beam block 53 in the demoulding process ensures that the operation of the mould is smoother and controllable, reduces the problems and the downtime possibly caused by demoulding, and improves the stability and the reliability of the production line.

With reference to fig. 2 and 3, the beam block 53 is provided with a boss structure which is clamped on two adjacent sliding blocks 51, the connection stability between the beam block 53 and the sliding blocks 51 can be enhanced by arranging the boss structure, the beam block 53 is prevented from being separated from the sliding blocks 51 in the operation process, the stability and the reliability of the whole structure are ensured, and the boss structure is clamped on the sliding blocks 51 to provide additional positioning support, so that the beam block 53 is ensured to maintain correct positioning in the resetting process;

Each beam block 53 is provided with two first inclined planes 531, each sliding block 51 is provided with a second inclined plane 512, the first inclined planes 531 are in abutting fit with the second inclined planes 512 of the adjacent sliding blocks 51, tight connection between the beam blocks 53 and the sliding blocks 51 can be ensured in the demolding process through the fitting design of the first inclined planes 531 and the second inclined planes 512, loosening or dislocation is avoided, the beam blocks 53 and the sliding blocks 51 are smoothly separated in demolding, more convenient demolding operation is provided, and in the resetting process, accurate alignment can be provided through abutting fit of the first inclined planes 531 and the second inclined planes 512, so that the beam blocks 53 and the sliding blocks 51 can be quickly restored to the initial positions.

The demoulding mechanism 5 further comprises a plurality of inclined guide posts 54, in the embodiment, the number of the inclined guide posts 54 is 4, the inclined guide posts 54 are in one-to-one correspondence with the sliding blocks 51, the inclined guide posts 54 are fixed on the female die core 21, in the embodiment, the inclined guide posts 54 are fixed on the female die core 21 through bolts, the inclined guide posts 54 are inserted into the sliding blocks 51 and slide in the sliding blocks 51 to abut, the inclined guide posts 54 play a role of guiding and supporting the sliding blocks 51, stability and accuracy of the sliding blocks 51 in demoulding and resetting are ensured, and stable movement and position adjustment of the sliding blocks 51 can be realized due to the arrangement of the inclined guide posts 54, so that the demoulding speed and position are controlled;

The bottom surface of the inclined guide pillar 54 is an arc surface, the design of the arc surface can provide larger fault tolerance, the accuracy of demoulding and resetting movement of the inclined guide pillar 54 can be improved, and the instability caused by friction or resistance can be reduced by the design of the arc surface, so that sliding is smoother.

Referring to fig. 2 and 3, the angle formed between the first inclined surface 531 and the vertical direction and the angle formed between the second inclined surface 512 and the vertical direction are set to a, the angle formed between the inclined guide post 54 and the vertical direction is set to b, a is 1 ° -3 ° greater than b, and in this embodiment, a is 2 ° greater than b, and by setting the angle difference range between the second inclined surface 512 and the inclined guide post 54, the reset guiding performance can be realized, smooth movement and accurate reset of the slide block 51 in the demolding process are ensured, and the stability and accuracy of the slide block 51 in the continuous injection molding cycle are improved, thereby improving the production efficiency and the product quality of the mold.

Referring to fig. 2, the demolding mechanism 5 further includes limit screws 55, the limit screws 55 are disposed in the mounting cavity 3 and fixed on the pressing plate 6, in this embodiment, the number of limit screws 55 is 2, two adjacent sliders 51 are correspondingly provided with 1 limit screw 55, the limit screws 55 are disposed between two adjacent sliders 51 and leave a moving space with the sliders 51, in the demolding process, the limit screws 55 limit the sliders 51 to move only within a predetermined range, and mold damage or production interruption caused by the sliders 51 exceeding a predetermined range is prevented, in the process, the moving space between the sliders 51 and the limit screws 55 can facilitate smooth demolding movement or resetting of the sliders 51.

The embodiment of the application has the implementation principle that the design of the sliding block 51, the pushing piece 52 and the binding block 53 are matched with each other, so that the occupied space of the demoulding mechanism 5 in the multi-cavity mould is reduced, the compactness and the efficiency of the mould design are improved, the normal operation of the demoulding process can be ensured, and the demoulding operation in the opening and closing process is more reliable and smoother;

Before use, the spring 521 is arranged in the groove 511 of the sliding block 51, and then the sliding block 51 is arranged in the mounting cavity 3, the limit screw 55 is fixed on the pressing plate 6, the pressing plate 6 is connected with the male die core 11 by using a bolt, the pressing plate 6 fixes the sliding block 51 in the mounting cavity 3, the pressing plate 6 tightly presses the sliding block 51 with the beam block 53 and other components in the mounting cavity 3, meanwhile, the limit screw 55 is positioned in the mounting cavity 3 of the die, and the limit screw 55 is positioned between two adjacent sliding blocks 51 and leaves a moving space with the sliding blocks 51;

When the mold is closed, the beam blocks 53 are abutted against the two adjacent slide blocks 51, the first inclined surface 531 of the beam block 53 is abutted against the second inclined surface 512 of the slide block 51, the inclined guide post 54 is inserted into the slide block 51 to guide and support the slide block 51, in the process, the slide block 51 is abutted against the beam blocks 53 and the inclined guide post 54, and the spring 521 in the groove 511 of the slide block 51 is subjected to the same pressure, so that the spring 521 is abutted against the inner wall of the male mold core 11 and the groove bottom wall of the groove 511, and the spring 521 compresses the storage force;

When the mold is opened, the female mold 2 is driven to move to the side far away from the male mold 1, the female mold core 21, the binding block 53 and the inclined guide pillar 54 are driven to move together, the movement of the female mold core 21 drives the binding block 53 and the inclined guide pillar 54 to move, the restriction of the binding block 53 to two adjacent sliding blocks 51 is relieved, the restriction of the inclined guide pillar 54 to the corresponding sliding blocks 51 is relieved, at the moment, the spring 521 assists to push the sliding blocks 51 to move to the side far away from the product cavity 4, when the sliding blocks 51 meet the limit screw 55, the limit screw 55 props against the two adjacent sliding blocks 51, the movement stroke of the sliding blocks 51 is limited, and the sliding blocks 51 are prevented from exceeding the movement range;

When the female die 2 is required to be reset, the female die 21 is driven to move towards the male die 1 side, the female die core 21 and the binding block 53 are driven to move together, the movement of the female die core 21 drives the binding block 53 to move, the first inclined surface 531 of the binding block 53 is matched with the second inclined surface 512 of the sliding block 51, the binding block 53 can be inserted between the two sliding blocks 51 along the guidance of the first inclined surface 531 and the second inclined surface 512 and tightly abuts against the sliding block 51, and meanwhile, the inclined guide pillar 54 can be inserted into the corresponding sliding block 51 along the guidance of the inclined surface structure and tightly abuts against the sliding block 51, so that the reset work of the demoulding mechanism 5 is completed, and preparation is made for the next injection moulding and demoulding work.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims (10)

1. An injection mold comprises a male mold (1) and a female mold (2), wherein a male mold core (11) and a female mold core (21) are respectively arranged on the male mold (1) and the female mold (2), a mounting cavity (3) and a plurality of product mold cavities (4) are arranged between the female mold core (21) and the male mold core (11), the injection mold is characterized by comprising a demolding mechanism (5) arranged in the mounting cavity (3), the demolding mechanism (5) comprises a plurality of sliding blocks (51), pushing pieces (52) and binding blocks (53), the sliding blocks (51) are in one-to-one correspondence with the product mold cavities (4) and are partially positioned in the product mold cavities (4), the sliding blocks (51) slide in the mounting cavity (3), the binding blocks (53) are fixed on the female mold core (21), the binding blocks (53) are arranged between two adjacent sliding blocks (51) and are in collision with the sliding blocks (51), the pushing pieces (52) are in one-to-one correspondence with the sliding blocks (51), when the male mold (2) and the sliding blocks (21) are driven to move away from the female mold core (53) to one side of the sliding blocks (1), the pushing piece (52) pushes the sliding block (51) to move towards the side far away from the product cavity (4).

2. The injection mold according to claim 1, wherein the pushing member (52) comprises a spring (521), the slider (51) is provided with a groove (511), the spring (521) is disposed in the groove (511), one end of the spring (521) abuts against the inner wall of the male mold core (11), and the other end abuts against the bottom wall of the groove (511).

3. The injection mold of claim 1, wherein the beam block (53) is provided with two first inclined planes (531), the slide block (51) is provided with a second inclined plane (512), and the first inclined planes (531) are abutted against the second inclined planes (512) of the adjacent slide blocks (51).

4. The injection mold of claim 3, further comprising a plurality of diagonal guide posts (54), wherein the diagonal guide posts (54) are in one-to-one correspondence with the slide blocks (51), the diagonal guide posts (54) are fixed to the female mold core (21), and the diagonal guide posts (54) are inserted into the slide blocks (51) and slide in the slide blocks (51).

5. The injection mold according to claim 4, wherein an angle formed between the second inclined surface (512) and the vertical direction is a, an angle formed between the inclined guide post (54) and the vertical direction is b, and a is larger than b.

6. The injection mold of claim 5, wherein a is 1-3 degrees greater than b.

7. The injection mold according to claim 4, wherein the bottom surface of the diagonal guide post (54) is formed as an arc surface.

8. The injection mold according to claim 1, further comprising a pressing plate (6), wherein the pressing plate (6) is disposed on the male mold core (11), the sliding block (51) is fixed in the installation cavity (3) through the pressing plate (6), and the sliding block (51) abuts against the pressing plate (6) and slides on the pressing plate (6).

9. The injection mold according to claim 8, further comprising a limit screw (55), wherein the limit screw (55) is disposed in the mounting cavity (3) and fixed on the pressing plate (6), and a moving space is left between the slider (51) and the limit screw (55).

10. The injection mold according to claim 1, wherein the bundle block (53) is provided with a boss structure which is caught on the adjacent two sliders (51).