CN114347401A

CN114347401A - Tripping structure and injection mold

Info

Publication number: CN114347401A
Application number: CN202111659312.XA
Authority: CN
Inventors: 李雄武; 周水平; 田建军
Original assignee: ASAP Technology Jiangxi Co Ltd
Current assignee: ASAP Technology Jiangxi Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-15
Anticipated expiration: 2041-12-30
Also published as: CN114347401B

Abstract

The invention discloses a tripping structure and an injection mold, belonging to the technical field of injection molding, wherein the tripping structure comprises a sliding block assembly, an inclined guide pillar and an ejection assembly, wherein the sliding block assembly is provided with a first through hole; the inclined guide post is inserted into the first through hole in a sliding mode, the extending direction of the inclined guide post is crossed in the first direction, and the inclined guide post moves along the first direction and can drive the sliding block assembly to move along the second direction; the ejection assembly comprises a base and an ejection piece connected to the base, when the inclined guide pillar drives the sliding block assembly to move in the second direction for a first preset distance to release, the base and the ejection piece can eject a product in the second direction, and when the inclined guide pillar drives the sliding block assembly to move in the second direction for a distance greater than the first preset distance, the sliding block assembly drives the base and the ejection piece to release the product in the second direction. The tripping structure and the injection mold provided by the invention reduce the adhesion condition of the product and the tripping structure, improve the yield of the product and have higher reliability.

Description

Tripping structure and injection mold

Technical Field

The invention relates to the technical field of injection molding, in particular to a tripping structure and an injection mold.

Background

The injection mold is widely applied to processing of plastic products and has the advantages of high processing efficiency, high precision of finished products and the like.

Fig. 18 is a prior art product obtained by injection molding, wherein, as shown in fig. 18, the product has a plurality of fastening locations, and the plurality of fastening locations specifically include a first hole location 1001, a cantilever location 1002 and a second hole location 1003. In the demolding process, the sliding block of the mold is easily adhered to the buckling position, so that the buckling position is easily pulled to be cracked in the process of separating the sliding block from a product, and the yield of plastic products is low.

Disclosure of Invention

The invention aims to provide a tripping structure and an injection mold, which reduce the adhesion condition of a product and the tripping structure, improve the yield of the product and have higher reliability.

As the conception, the technical scheme adopted by the invention is as follows:

a trip structure, comprising:

a slider assembly having a first through hole;

the inclined guide post is inserted into the first through hole in a sliding mode, the extending direction of the inclined guide post is crossed with a first direction, the inclined guide post moves along the first direction and can drive the sliding block assembly to move along a second direction, and the second direction is perpendicular to the first direction;

the ejection assembly comprises a base and an ejection piece connected with the base,

when the inclined guide post drives the sliding block assembly to move a first preset distance in the second direction for tripping, the base and the ejector piece can eject a product in the second direction, and when the inclined guide post drives the sliding block assembly to move in the second direction for a distance greater than the first preset distance, the sliding block assembly drives the base and the ejector piece to trip the product in the second direction.

Optionally, the ejection assembly further comprises a toggle member, the base is arranged in the accommodating space on the slider assembly, the base is provided with a strip-shaped hole extending along the second direction, the middle part of the toggle member movably penetrates through the strip-shaped hole, and the toggle member is connected to the slider assembly;

when the distance that the inclined guide post drives the sliding block assembly to move in the second direction is smaller than or equal to a first preset distance, the poking piece slides in the strip-shaped hole, and when the distance that the inclined guide post drives the sliding block assembly to move in the second direction is larger than the first preset distance, the poking piece pushes the base and the ejector piece to move in the second direction through the hole wall of the strip-shaped hole.

Optionally, the ejector comprises an ejector sleeve, a thimble and a plunger rod, the ejector sleeve penetrates through one end of the slider assembly and is used for abutting against a first hole position of a product, and the other end of the ejector sleeve is fixedly connected to the base; the thimble penetrates through one end of the sliding block component and is used for abutting against a cantilever position of a product, and the other end of the thimble is fixedly connected with the base; the middle part of the core pulling rod movably penetrates through the ejector cylinder, one end of the core pulling rod penetrates through the sliding block assembly and the ejector cylinder, one end of the core pulling rod is used for forming a first hole position of the product, and the other end of the core pulling rod is fixedly connected with the poking piece.

Optionally, the ejection assembly further includes a first elastic member extending along the second direction, and the first elastic member is disposed between a side of the base facing the product and the slider assembly.

Optionally, the slider assembly comprises a primary slider, the first through hole comprises a first sub-hole arranged on the primary slider, and the primary slider is provided with a molding surface for molding the product.

Optionally, the slider assembly further includes a trip blade base and a secondary slider, the trip blade base is slidably disposed in the primary slider along the second direction, the secondary slider is pushed by the trip blade base to move in the first direction, and the secondary slider is used for forming a fastening position of the product;

the first through hole further comprises a second sub hole arranged on the tripping shovel base, the inclined guide post is inserted into the first sub hole and the second sub hole, the second sub hole is matched with the inclined guide post, and the first sub hole is provided with an avoiding space in the second direction.

Optionally, one end of the tripping shovel base is provided with a first inclined wall, the secondary slider is provided with a second inclined wall matched with the first inclined wall, one of the first inclined wall and the second inclined wall is provided with a dovetail block, and the other is provided with a dovetail groove, and the dovetail block slides in the dovetail groove.

Optionally, the primary sliding block includes a first sub-block and a second sub-block, the trip shovel base includes a main body portion and a pushing portion connected to the main body portion toward one side of the product, the second sub-hole is formed in the main body portion, the main body portion slides in the first sub-block, the pushing portion slides in the second sub-block, and the secondary sliding block is pushed by the pushing portion to move in the first direction.

Optionally, the slider assembly further comprises a second elastic member disposed between a side of the main body portion facing the product and the second sub-block.

Optionally, the ejection device further comprises a limiting assembly, the limiting assembly abuts against the bottom surface of the sliding block assembly and the side surface of the base, which is not connected with the ejection member, and the sliding block assembly moves along the second direction to push the limiting assembly to move along the reverse direction of the first direction and separate the limiting assembly from the base.

The utility model provides an injection mold, includes quiet mould, movable mould and foretell dropout structure, slider component slides and locates on the movable mould, oblique guide pillar connect in quiet mould.

Optionally, the device further comprises a shovel base, the shovel base abuts against one side, facing away from the product, of the sliding block assembly, and the shovel base is connected with the static die.

The invention has at least the following beneficial effects:

according to the tripping structure and the injection mold provided by the invention, the ejection assembly is fixedly arranged on the sliding block assembly, the ejection assembly comprises the ejection piece, and when the moving distance of the sliding block assembly is smaller than or equal to the first preset distance, the ejection piece and the base can eject a product, so that the sliding block assembly is smoothly separated from the product, the probability of adhesion of a buckling position of the product and the sliding block assembly is reduced, the effect of ejecting the product by the tripping structure is achieved, the tripping effect is ensured, the yield of the product obtained by injection molding is improved, the structure is simple, and the reliability is higher.

Drawings

Fig. 1 is a first schematic structural diagram of a trip structure provided in an embodiment of the present invention;

fig. 2 is a first exploded schematic structural diagram of a trip structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a part of a trip structure provided in the embodiment of the present invention;

fig. 4 is a schematic structural diagram ii of a trip structure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram three of a trip structure provided in the embodiment of the present invention;

fig. 6 is a top view of a trip mechanism provided by an embodiment of the present invention;

FIG. 7 is a cross-sectional view A-A of the present invention as shown in FIG. 6;

fig. 8 is a schematic diagram of an exploded structure of a trip structure according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a secondary slider provided in an embodiment of the present invention;

FIG. 10 is a schematic diagram of an injection molded abrasive article according to an embodiment of the present invention;

FIG. 11 is an exploded view of an injection molded abrasive article according to an embodiment of the present invention;

FIG. 12 is a first view of an injection mold according to an embodiment of the present invention;

FIG. 13 is a second perspective view of an injection mold according to an embodiment of the present invention;

FIG. 14 is a third view of an injection mold according to an embodiment of the present invention;

FIG. 15 is a fourth view of an injection mold according to an embodiment of the present invention;

FIG. 16 is a fifth perspective view of an injection mold article according to an embodiment of the present invention;

FIG. 17 is a sixth view of an injection molded abrasive article according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of a product provided by an embodiment of the invention.

In the figure:

1. a slider assembly; 11. a first through hole; 111. a first sub-aperture; 112. a second sub-aperture; 12. a second inclined plane; 13. a primary slide block; 130. molding surface; 131. a first sub-block; 132. a second sub-block; 1321. a second through hole; 1322. a third through hole; 1323. a fourth via hole; 14. tripping the shovel base; 141. a first inclined wall; 142. a dovetail block; 143. a main body portion; 144. a pushing part; 15. a secondary slide block; 151. a second inclined wall; 152. a dovetail groove; 153. forming a column; 17. a second elastic member;

2. an inclined guide post;

3. ejecting the assembly; 31. a base; 311. a strip-shaped hole; 312. a first card slot; 32. ejecting the part; 321. a ejector sleeve; 322. a thimble; 323. drawing the core rod; 33. a toggle piece; 34. a first elastic member;

4. ejecting the limiting piece; 41. a first inclined plane; 42. a return spring;

10. static molding; 20. moving the mold; 30. a shovel base; 40. a rear mold core of the mold; 50. mounting blocks;

100. producing a product; 1001. a first hole site; 1002. a cantilever position; 1003. a second hole site;

x1, first direction, X2, second direction.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a tripping structure, which reduces the adhesion between the product 100 and the tripping structure, improves the yield of the product 100, and has higher reliability. The tripping structure provided by the embodiment is applied to an injection mold, so that the injection mold has higher reliability. The product 100 may be in the configuration shown in fig. 18, and specifically, as shown in fig. 18, the product 100 has a first hole site 1001 and a cantilever site 1002.

As shown in fig. 1, the trip mechanism includes a slider assembly 1, an inclined guide post 2 and an ejection assembly 3.

Wherein, the slider assembly 1 has a first through hole 11, and in some embodiments, the first through hole 11 extends through the upper and lower sides of the slider assembly 1. The inclined guide post 2 is slidably inserted into the first through hole 11, and an extending direction of the inclined guide post 2 crosses the first direction X1, in fig. 4 of the present embodiment, the first direction X1 may be a vertical upward direction, that is, the inclined guide post 2 is disposed obliquely relative to the slider assembly 1, so that when the inclined guide post 2 moves along the first direction X1, the slider assembly 1 can be driven to move along the second direction X2, the second direction X2 may be a horizontal direction, specifically, the second direction X2 may be a direction in which the slider assembly 1 is away from a mold back mold core of the injection mold, that is, the second direction X2 is a direction in which the slider assembly 1 is away from the product 100. It should be noted that, when the slider assembly 1 is applied in an injection mold, the movable mold of the injection mold can limit the slider assembly 1 in the first direction X1, so that the slider assembly 1 can only move in the second direction X2 and cannot move in the first direction X1 along with the inclined guide post 2. In this embodiment, the second direction X2 is perpendicular to the first direction X1.

As shown in fig. 2, the ejection assembly 3 includes a base 31 and an ejector 32 connected to the base 31. In some embodiments, the slider assembly 1 is provided with a hole structure or a slot structure, and the base 31 is fixed in the hole structure or the slot structure. The base 31 is in the shape of a long bar, the extending direction of the base 31 is parallel to the second direction X2, one end of the ejector 32 is connected to one end of the base 31, and the other end extends out of the slider assembly 1 and can be abutted against the product 100. The extending direction of the ejector member 32 is parallel to the second direction X2.

In the trip mechanism of the present embodiment, when in use, the slider assembly 1 and the ejector 32 are respectively in contact with the formed product 100. When tripping is required, the inclined guide post 2 is driven to move in the first direction X1, so that the inclined guide post 2 can drive the slider assembly 1 to move in the second direction X2. The movement of the inclined guide post 2 and the slider assembly 1 has two processes, namely an ejection process and a release process, specifically, in the ejection process, the movement distance of the slider assembly 1 in the second direction X2 is less than or equal to a first preset distance, that is, when the slider assembly 1 moves the first preset distance in the second direction X2 to trip, the base 31 and the ejector 32 can eject the product 100 in the second direction X2, at this time, the inclined guide post 2 drives the slider assembly 1 to separate from the product 100, and because the ejector 32 abuts against the product 100, when the slider assembly 1 is separated from the product 100, the product 100 cannot be taken away due to the acting force between the two. During the releasing process, the moving distance of the slider assembly 1 in the second direction X2 is greater than the first preset distance, and when the oblique guide post 2 drives the slider assembly 1 to move in the second direction X2 by a distance greater than the first preset distance, the slider assembly 1 drives the base 31 and the ejector 32 to move in the second direction X2 to release the product 100.

The tripping structure that this embodiment provided, ejecting subassembly 3 sets firmly in slider assembly 1, and ejecting subassembly 3 includes ejecting 32, when the distance that slider assembly 1 removed is less than or equal to first preset distance, ejecting 32 and base 31 can ejecting product 100, make slider assembly 1 separate with product 100 smoothly, the probability that the knot position of product 100 and slider assembly 1 are even has been reduced, product 100 has been reached by the ejecting effect of tripping structure, the tripping effect has been guaranteed, the yield of product 100 that obtains of moulding plastics has been improved, simple structure just has higher reliability.

Optionally, referring to fig. 2 and fig. 3, the ejection assembly 3 further includes a toggle member 33, and the slider assembly 1 pushes the base 31 and the ejection member 32 to move through the toggle member 33. Specifically, the base 31 is disposed in an accommodating space on the slider assembly 1, and in some embodiments, the accommodating space is a hole opened in the slider assembly 1 and extending along the second direction X2; in other embodiments, the receiving space is a slot provided in the slider assembly 1.

As shown in fig. 3, the base 31 has a strip-shaped hole 311 extending along the second direction X2, the middle portion of the toggle member 33 movably penetrates through the strip-shaped hole 311 and can slide in the strip-shaped hole 311, and the toggle member 33 is connected to the slider assembly 1, so that when the slider assembly 1 moves along the second direction X2, the toggle member 33 can be driven to move along the second direction X2 in the strip-shaped hole 311. When the inclined guide post 2 drives the slider assembly 1 to move the first preset distance in the second direction X2 to trip, the toggle member 33 slides in the strip-shaped hole 311 without pushing the base 31 to move in the second direction X2, so that the base 31 and the ejector member 32 eject the product 100 in the second direction X2; when the inclined guide post 2 drives the slider assembly 1 to move in the second direction X2 by a distance greater than the first preset distance, the toggle member 33 pushes the base 31 and the ejector member 32 to disengage the product in the second direction X2 through the hole wall of the strip-shaped hole 311. Through the mutual cooperation of the poking piece 33 and the strip-shaped hole 311, the ejection piece 32 can be abutted against the product 100 when the slider assembly 1 is separated from the product 100. In some embodiments, the first predetermined distance is 10 mm, that is, the distance between the toggle member 33 and the strip-shaped hole 311 is 10 mm. Alternatively, the dial 33 is embodied as a bar-shaped block, and the dial 33 extends in the first direction X1.

Alternatively, the manner of connecting the toggle member 33 to the slider assembly 1 may be various, for example, the slider assembly 1 has a hole structure or a slot structure communicating with the accommodating space, and the end of the toggle member 33 is inserted into the hole structure or the slot structure, so as to connect the toggle member 33 and the slider assembly 1.

In some embodiments, the ejector 32 includes a ejector sleeve 321, and the ejector sleeve 321 passes through one end of the slider assembly 1 for abutting against the first hole position 1001 of the product 100, so as to be able to eject the product 100 through the ejector sleeve 321 against the first hole position 1001. The other end of the ejector sleeve 321 is fixedly connected to the base 31, so that when the base 31 moves, the ejector sleeve 321 can be driven to move, and the release structure is disengaged from the product 100. Optionally, one or more of the ejector sleeves 321 may be provided, which is not limited in this embodiment, when a plurality of ejector sleeves 321 are provided, a plurality of first hole locations 1001 are provided, and the plurality of ejector sleeves 321 are abutted against the plurality of first hole locations 1001 in a one-to-one correspondence manner.

Further, the ejector 32 may further include a rod 323, wherein the middle of the rod 323 movably penetrates the sleeve 321, one end of the rod 323 penetrates the slider assembly 1 and the sleeve 321, one end of the rod 323 is used for forming the first hole 1001 of the product 100, and the other end of the rod 323 is fixedly connected to the toggle 33. When the toggle member 33 moves, one end of the core pulling rod 323 can be driven to be pulled out from the first hole 1001, so as to complete the core pulling operation.

In other embodiments, ejector 32 includes ejector pin 322, and ejector pin 322 passes through one end of slider assembly 1 for abutting against cantilever position 1002 of product 100, so as to be able to eject product 100 by ejecting pin 322 against cantilever position 1002. The other end of the thimble 322 is fixedly connected to the base 31, so that when the base 31 moves, the thimble 322 can be driven to move, and the release structure is disengaged from the product 100. Optionally, one or more thimbles 322 may be provided, which is not limited in this embodiment, when a plurality of thimbles 322 are provided, a plurality of cantilever positions 1002 are provided, and the plurality of thimbles 322 are abutted to the plurality of cantilever positions 1002 in a one-to-one correspondence.

It should be noted that the ejector 32 may only include the thimble 322 or only the ejector sleeve 321, or the ejector 32 includes both the thimble 322 and the ejector sleeve 321, which is not limited in this embodiment.

Still alternatively, as shown in fig. 3, the ejecting assembly 3 further includes a first elastic member 34, the first elastic member 34 extends along the second direction X2, and the first elastic member 34 is disposed between the side of the base 31 facing the product 100 and the slider assembly 1, the first elastic member 34 is used for assisting the return of the base 31 and the ejecting member 33 and for pushing the base 31 to move along the second direction X2. In the present embodiment, the first elastic member 34 is configured to: when the moving distance of the slider assembly 1 in the second direction X2 is equal to the first preset distance, it is a critical point of the first elastic member 34, and at this time, the first elastic member 34 belongs to the maximum compression state; when the moving distance of the slider assembly 1 in the second direction X2 is greater than the first preset distance, the first elastic member 34 and the toggle member 33 simultaneously push the base 31 to move in the second direction X2, and the first elastic member 34 rebounds to a pre-stressed state, and when the external force applied to the base 31 disappears, the base 31 moves in the opposite direction of the second direction X2 under the action of the elastic force of the first elastic member 34, so as to achieve the resetting. Illustratively, the first elastic member 34 may be a spring.

In this embodiment, the tripping structure further includes a limiting component 4, the limiting component 4 abuts against the bottom surface of the sliding block component 1 and the side surface of the base 31 not connected with the ejecting member 32, and the limiting component 4 is used for limiting the base 31 so as to prevent the base 31 from moving in the ejecting process. When the slider assembly 1 moves along the second direction X2, the limit assembly 4 can be pushed to move along the first direction X1 in the opposite direction, and the limit assembly 4 is separated from the base 31, so that the limit of the limit assembly 4 on the base 31 is released.

Further, as shown in fig. 4 to 7, the position-limiting component 4 has a first inclined surface 41, the slider component 1 has a second inclined surface 12 matching with the first inclined surface 41, the slider component 1 moves along the second direction X2, and the position-limiting component 4 can be pushed by the first inclined surface 41 and the second inclined surface 12 to move along the direction opposite to the first direction X1, that is, the slider component 1 can press down the position-limiting component 4, so that the position-limiting component 4 moves from the locking position to the unlocking position, the base 31 has a first engaging groove 312, when the position-limiting component 4 is in the locking position, the top end of the position-limiting component 4 is placed in the first engaging groove 312 to lock the base 31, so that the base 31 cannot move in the second direction X2; when the position-limiting component 4 is in the unlocking position, the top end of the position-limiting component 4 is located outside the first slot 312, so that the position-limiting component 4 does not interfere with the movement of the base 31.

Further, limiting component 4 is including being massive stopper and connecting in the return spring 42 of stopper below, and first inclined plane 41 is located on the stopper, and return spring 42 is located between stopper and the movable mould, and when slider component 1 extruded the stopper, return spring 42 was in the compression state, and when slider component 1 no longer extruded the stopper, the stopper reset under return spring 42's effect for the top of stopper moves into in first draw-in groove 312. In this embodiment, the first locking groove 312 may be a notch at one end of the base 31, which is not limited in this embodiment. The first elastic element 34 and the return spring 42 cooperate with each other, so that the trip mechanism has an automatic return function, and the efficiency of the trip mechanism is improved.

The present embodiment provides a slider assembly 1, as shown in fig. 2 and 3, the slider assembly 1 includes a first through-hole 11 including a first sub-hole 111 provided on the first through-hole 13, the first through-hole 13 has a molding surface 131 for molding a product 100, and the shape of the molding surface 131 may be set according to the shape of the product 100.

Further, the slider assembly 1 further includes a trip shovel base 14 and a secondary slider 15. The trip shovel base 14 is slidably disposed in the primary slider 13 along a second direction X2, and the secondary slider 15 is used to form a buckling position of the product 100, in this embodiment, the secondary slider 15 is used to form a second hole 1003 on the product 100. Secondary slide 15 can be pushed to move by tripping shovel base 14. When the tripping shovel base 14 pushes the secondary slide block 15 to move, the secondary slide block 15 can be disengaged from the product 100, so that the product 100 can be ejected out conveniently. Optionally, as shown in fig. 3, the top surface of the secondary slider 15 has a molding column 153, and the molding column 153 is used for molding the second hole site 1003 on the product 100.

In this embodiment, when the sliding block assembly 1 includes the tripping shovel base 14, the first through hole 11 further includes a second sub-hole 112 disposed on the tripping shovel base 14, the first sub-hole 111 is communicated with the second sub-hole 112, the inclined guide post 2 is obliquely inserted into the first sub-hole 111 and the second sub-hole 112, the second sub-hole is adapted to the inclined guide post, and the first sub-hole has an avoidance space in the second direction X2, so that the inclined guide post drives the secondary sliding block to move through the second sub-hole first, and then drives the primary sliding block 13 to move through the first sub-hole 111. It should be noted that the hole wall of the second sub-hole 112 is attached to the outer wall of the inclined guide pillar 2, that is, the inclined guide pillar 2 can directly drive the trip shovel base 14 to move when moving.

The tripping structure further has a pre-tripping process, the pre-tripping process is located before the ejection process, in the pre-tripping process, the inclined guide post 2 moves along the first direction X1 and drives the tripping shovel base 14 to move along the second direction X2, and when the tripping shovel base 14 moves a second preset distance in the second direction X2, the tripping shovel base 14 can push the secondary slider 15 to move, so that the secondary slider 15 is disengaged from the product 100. For example, when the trip shovel base 14 moves 22.5 mm in the second direction X2, the secondary slider 15 moves 6.5 mm in the direction opposite to the first direction X1. In the process, the guiding pin 2 slides in the first sub-hole 111 without pushing the primary slide 13 to move in the second direction X2, i.e. the primary slide 13, the base 31 and the ejector 32 are stationary. When the moving distance of the tripping shovel base 14 in the second direction X2 is equal to a second preset distance, the inclined guide post 2 contacts with the hole wall of the first sub-hole 111, and when the inclined guide post 2 continues to move along the first direction X1, the first sub-hole 111 can push the first slider 13 to move in the second direction X2, so as to enter the ejection process. It should be noted that the second preset distance is smaller than the first preset distance.

Further, as shown in fig. 8, one end of the trip shovel base 14 is provided with a first inclined wall 141, as shown in fig. 9, the secondary slider 15 has a second inclined wall 151 which is engaged with the first inclined wall 141, one of the first inclined wall 141 and the second inclined wall 151 is provided with a dovetail block 142 having a T-shaped cross section, and the other is provided with a dovetail groove 152 having a T-shaped cross section, and the dovetail block 142 slides in the dovetail groove 152. When the trip shovel base 14 moves along the second direction X2, the secondary slider 15 can be pushed to move in the direction opposite to the first direction X1 by the dovetail block 142 and the dovetail groove 152, that is, the secondary slider 15 can be pulled down to move in the direction opposite to the first direction X1, so that the forming column 153 is pulled out from the second hole 1003.

With continued reference to fig. 8, the primary slider 13 includes a first sub-block 131 and a second sub-block 132 connected to each other, and the first sub-block 131 and the second sub-block 132 are sequentially arranged in the second direction X2. The trip shovel base 14 includes a main body 143 and a pushing portion 144 connected to one side of the main body 143 facing the product 100, the second sub-hole 113 is disposed in the main body 143, the main body 143 slides in the first sub-block 131, the pushing portion 144 slides in the second sub-block 131, and the secondary slider 15 is pushed by the pushing portion 144 to move in the first direction X1.

Further, the slider assembly 1 further includes a second elastic member 17, and the second elastic member 17 is disposed between the second sub-block 132 and a side of the main body 143 facing the product 100, and is used for assisting the mold opening movement of the trip shovel base 14 and preventing the trip shovel base 14 from rebounding after sliding out. When the tripping shovel base 14 rebounds, the inclined guide post 2 cannot be aligned with the second sub-hole 112, so that the mold cannot be closed, and the risk of mold collision exists. Optionally, the surface of the main body 143 facing the second sub-block 132 has a spring receiving hole, and one end of the second elastic member 17 is located in the spring receiving hole. The second elastic member 17 is illustratively a spring.

Further, as shown in fig. 2, the second sub-block 132 has a second through hole 1321, a third through hole 1322 and a fourth through hole 1323, wherein the second through hole 1321 is used for the pushing portion 144 to pass through, the third through hole 1322 is used for the barrel 321 to pass through, and the fourth through hole 1323 is used for the thimble 322 to pass through.

The present embodiment further provides an injection mold, as shown in fig. 10 and 11, the injection mold includes a stationary mold 10, a movable mold 20, and the above-mentioned trip structure. The slide block assembly 1 is slidably disposed on the movable mold 20 along the second direction X2, the inclined guide post 2 is connected to the stationary mold 10, and the stationary mold 10 can drive the inclined guide post 2 to move in the first direction X1X when moving.

The injection mold that this embodiment provided, through setting up dropout structure, can be at the in-process of die sinking, the condition to structure pull crack on the product 100 can not appear, and the die sinking action is simple, the risk of hitting the mould can not appear during the compound die. In addition, the tripping structure is arranged, so that the requirements on the processing precision of the static die 10 and the moving die 20 are lower, and the integral cost of the injection mold is further reduced

Optionally, with continued reference to fig. 10 and fig. 11, the injection mold further includes a shovel base 30, and the shovel base 30 is fixedly connected to the stationary mold 10, so that the stationary mold 10 drives the shovel base 30 and the inclined guide pillar 2 to move in the first direction X1 at the same time. The shovel base 30 abuts against one side, back to the product 100, of the sliding block assembly 1, so that when the mold is opened and the secondary sliding block 15 retracts, the shovel base 30 can prevent the primary sliding block 12 from retracting, and when the shovel base 30 moves away from the movable mold 20 and is released upwards, the primary sliding block 12 has a space for retracting; and, when the mold is closed, the shovel base 30 drives the primary slide block 12 forward in cooperation with the inclined guide post 2 to move, so that the primary slide block 12 and the rear core 40 of the injection mold cooperate with each other to form a molding cavity for molding the product 100. The oblique guide pillar 2 is connected with the stationary mold 10 through the mounting block 50, specifically, the bottom wall of the stationary mold 10 may be provided with a mounting groove, and the mounting block 50 is fixed in the mounting groove to realize the connection of the oblique guide pillar 2 with the stationary mold 10.

Fig. 12 to 17 are reference diagrams illustrating the use of the injection mold according to the present embodiment, wherein the stationary mold 10 and a portion of the mold back mold core 40 are omitted. Fig. 12 is a state view of the injection mold before the mold release, in which the molding post 153 of the secondary slide 15 is not released from the product 100 and the oblique guide post 2 is in contact with one end of the first sub-hole 111. When the inclined guide post 2 is driven to move along the first direction X1, the inclined guide post 2 slides in the first sub-hole 111, and at the same time, the second sub-hole 112 drives the trip shovel base 14 to move along the second direction X2, and drives the secondary slider 15 to move along the opposite direction of the first direction X1, so that the forming post 153 is released from the second hole 1003, at this time, the injection mold is in the state shown in fig. 13, and the inclined guide post 2 contacts with the other end of the first sub-hole 111. The inclined guide post 2 is continuously driven to move in the first direction X1, at this time, the inclined guide post 2 drives the primary slider 13 and the trip shovel base 14 to move in the second direction X2 through the first sub-hole 111 and the second sub-hole 112, meanwhile, the primary slider 13 drives the toggle member 33 to slide in the strip-shaped hole 311, at this time, the base 31 and the ejector member 32 eject the product 200, so that when the primary slider 13 is separated from the product 100, the product 100 is not easily adhered to the primary slider 13. At this time, the injection mold assumes the state shown in fig. 14, 15, and 16. As shown in fig. 16, ejector sleeve 321 rests on first hole site 1001 of product 100, and ejector pin 322 rests on cantilever site 1002 of product 100. When the inclined guide pillar 2 is further driven to move along the first direction X1, the ejector 32 is separated from the product 100, so that the product 100 can be smoothly taken out of the rear core 40 of the mold.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A trip structure, comprising:

a slider assembly (1), the slider assembly (1) having a first through hole (11);

the inclined guide post (2) is slidably inserted into the first through hole (11), the extending direction of the inclined guide post (2) is crossed with a first direction (X1), the inclined guide post (2) moves along the first direction (X1) and can drive the sliding block assembly (1) to move along a second direction (X2), and the second direction (X2) is perpendicular to the first direction (X1);

an ejection assembly (3) comprising a base (31) and an ejection member (32) connected to the base (31),

when the inclined guide post (2) drives the slider assembly (1) to move for a first preset distance in the second direction (X2) to trip, the base (31) and the ejector (32) can eject a product (100) in the second direction (X2), and when the inclined guide post (2) drives the slider assembly (1) to move for a distance greater than the first preset distance in the second direction (X2), the slider assembly (1) drives the base (31) and the ejector (32) to trip the product (100) in the second direction (X2).

2. The trip structure according to claim 1, wherein the ejection assembly (3) further comprises a toggle member (33), the base (31) is disposed in the accommodating space on the slider assembly (1), the base (31) has a strip-shaped hole (311) extending along the second direction (X2), the middle of the toggle member (33) is movably disposed through the strip-shaped hole (311), and the toggle member (33) is connected to the slider assembly (1);

when the distance that the inclined guide post (2) drives the sliding block assembly (1) to move in the second direction (X2) is smaller than or equal to a first preset distance, the poking piece (33) slides in the strip-shaped hole (311), and when the distance that the inclined guide post (2) drives the sliding block assembly (1) to move in the second direction (X2) is larger than the first preset distance, the poking piece (33) pushes the base (31) and the ejector (32) to move in the second direction (X2) through the hole wall of the strip-shaped hole (311).

3. The trip structure according to claim 2, wherein the ejector (32) comprises an ejector sleeve (321), a thimble (322) and a plunger rod (323), the ejector sleeve (321) passes through one end of the slider assembly (1) and is used for abutting against the first hole position (1001) of the product (100), and the other end of the ejector sleeve (321) is fixedly connected to the base (31); the thimble (322) penetrates through one end of the sliding block assembly (1) and is used for abutting against a cantilever position (1002) of a product (100), and the other end of the thimble (322) is fixedly connected to the base (31); the middle of the core pulling rod (323) movably penetrates through the driving barrel (321), one end of the core pulling rod (323) penetrates through the sliding block assembly (1) and the driving barrel (321), one end of the core pulling rod (323) is used for forming a first hole position (1001) of the product (100), and the other end of the core pulling rod (323) is fixedly connected with the poking piece (33).

4. Trip structure according to claim 2, characterised in that said ejection assembly (3) further comprises a first elastic member (34), said first elastic member (34) extending along said second direction (X2), and said first elastic member (34) being provided between the side of said base (31) facing said product (100) and said slider assembly (1).

5. Trip structure according to claim 1, characterised in that the slide assembly (1) comprises a primary slide (13), that the first through hole (11) comprises a first sub-hole (111) provided in the primary slide (13), and that the primary slide (13) has a forming surface (130) for forming the product (100).

6. The trip structure according to claim 5, characterized in that said slider assembly (1) further comprises a trip blade base (14) and a secondary slider (15), said trip blade base (14) is slidably arranged in said primary slider (13) along said second direction (X2), said secondary slider (15) is pushed by said trip blade base (14) to move in said first direction (X1), and said secondary slider (15) is used for forming a catching position of said product (100);

the first through hole (11) further comprises a second sub-hole (113) arranged on the tripping shovel base (14), the inclined guide post (2) is inserted into the first sub-hole (111) and the second sub-hole (113), the second sub-hole is matched with the inclined guide post, and the first sub-hole is provided with an avoidance space in a second direction (X2).

7. Trip structure according to claim 6, characterised in that one end of the trip blade base (14) is provided with a first inclined wall (141), that the secondary slider (15) has a second inclined wall (151) cooperating with the first inclined wall (141), and that one of the first inclined wall (141) and the second inclined wall (151) is provided with a dovetail block (142) and the other with a dovetail groove (152), and that the dovetail block (142) slides in the dovetail groove (152).

8. The trip structure according to claim 6, wherein the primary slider (13) comprises a first sub-block (131) and a second sub-block (132) connected to each other, the trip shovel base (14) comprises a main body portion (143) and a pushing portion (144) connected to one side of the main body portion (143) facing the product (100), the second sub-hole (113) is formed in the main body portion (143), the main body portion (143) slides in the first sub-block (131), the pushing portion (144) slides in the second sub-block (131), and the secondary slider (15) is pushed by the pushing portion (144) to move in the first direction (X1).

9. The trip structure according to claim 8, wherein the slider assembly (1) further comprises a second resilient member (17), the second resilient member (17) being provided between a side of the main body portion (143) facing the product (100) and the second sub-block (132).

10. The trip structure according to claim 1, further comprising a limit component (4), wherein the limit component (4) abuts against the bottom surface of the slider component (1) and the side surface of the base (31) not connected with the ejector (32), and the slider component (1) moves along the second direction (X2) to push the limit component (4) to move along the first direction (X1) in the opposite direction, so that the limit component (4) is separated from the base (31).

11. An injection mold, characterized in that, including a static mold (10), a movable mold (20) and the trip mechanism of any one of claims 1-9, the slider assembly (1) is slidably disposed on the movable mold (20), and the angle guide post (2) is connected to the static mold (10).

12. An injection mould according to claim 11, further comprising a shovel base (30), wherein the shovel base (30) abuts against a side of the slide assembly (1) facing away from the product (100), and the shovel base (30) is connected with the stationary mold (10).