CN114347401B - Tripping structure and injection mold - Google Patents

Abstract

The invention discloses a tripping structure and an injection mold, which belong to the technical field of injection molding, wherein the tripping structure comprises a sliding block assembly, an inclined guide post and an ejection assembly, and 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 manner, 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 a first preset distance in the second direction to release, the base and the ejection piece can eject products in the second direction, and when the distance of the inclined guide pillar driving the sliding block assembly to move in the second direction is greater than the first preset distance, the sliding block assembly drives the base and the ejection piece to release the products 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 finished product precision and the like.

Fig. 18 shows a product obtained by injection molding according to the prior art, wherein, as shown in fig. 18, the product has a plurality of fastening sites, and the plurality of fastening sites specifically includes a first hole site 1001, a cantilever site 1002 and a second hole site 1003. In the demolding process, the sliding block of the mold is easy to adhere to the buckling position, so that the buckling position is easy to be pulled apart in the sliding block and product disengaging process, and the yield of plastic products is low, and therefore, the reliability of the injection mold in the prior art 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.

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 in the first through hole in a sliding manner, the extending direction of the inclined guide post is crossed in 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 slide block assembly is driven 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 slide block assembly is driven to move in the second direction for a distance greater than the first preset distance, the slide block assembly drives the base and the ejection piece to release the product in the second direction.

Optionally, the ejection assembly further includes a stirring member, the base is disposed in the accommodating space on the slider assembly, the base has a bar hole extending along the second direction, the middle of the stirring member movably penetrates through the bar hole, and the stirring member is connected to the slider assembly;

when the distance that the oblique guide pillar drives the sliding block component 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 oblique guide pillar drives the sliding block component to move in the second direction is larger than the first preset distance, the poking piece pushes the base and the ejection piece to move in the second direction through the hole wall of the strip-shaped hole.

Optionally, the ejector comprises a driver, a thimble and a core pulling rod, wherein the driver passes through one end of the sliding block assembly and is used for abutting against a first hole site of a product, and the other end of the driver is fixedly connected with the base; the thimble penetrates through one end of the sliding block assembly to be 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 is movably arranged in the driver, one end of the core pulling rod penetrates through the sliding block assembly and the driver, one end of the core pulling rod is used for forming a first hole site of the product, and the other end of the core pulling rod is fixedly connected with the stirring piece.

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

Optionally, the slider assembly includes a primary slider, the first through hole includes a first sub-hole provided on the primary slider, and the primary slider has a molding surface for molding the product.

Optionally, the sliding block assembly further comprises a tripping shovel base and a secondary sliding block, wherein the tripping shovel base is slidably arranged in the primary sliding block along the second direction, the secondary sliding block is pushed by the tripping shovel base to move in the first direction, and the secondary sliding block is used for forming a buckling position of the product;

the first through hole further comprises a second sub-hole formed in the tripping shovel base, the inclined guide pillar is inserted into the first sub-hole and the second sub-hole, the second sub-hole is matched with the inclined guide pillar, and the first sub-hole is provided with an avoidance space in the second direction.

Optionally, a first inclined wall is arranged at one end of the tripping shovel base, the secondary sliding block 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 slider includes a first sub-block and a second sub-block that connect, the tripping shovel base includes a main body portion and connect in the main body portion is towards the promotion portion of product one side, the second sub-hole is located the main body portion, just the main body portion slides in the first sub-block, the promotion portion slides in the second sub-block, the secondary slider is by the promotion of promotion portion is in the first direction removes.

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

Optionally, the device further comprises a limiting component, the limiting component is propped against the bottom surface of the sliding block component and the side surface of the base, which is not connected with the ejection piece, and the sliding block component can be pushed to move in the second direction in the reverse direction of the first direction, and the limiting component is separated from the base.

The injection mold comprises a static mold, a movable mold and the tripping structure, wherein the sliding block assembly is arranged on the movable mold in a sliding manner, and the inclined guide pillar is connected with the static mold.

Optionally, the device further comprises a shovel base, wherein the shovel base is propped 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 release structure and the injection mold provided by the invention, the ejection assembly is fixedly arranged on the sliding block assembly, and the ejection assembly comprises the ejection piece, 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 and the product are smoothly separated, the probability of adhesion between the buckling position of the product and the sliding block assembly is reduced, the effect that the product is ejected by the release structure is achieved, the release effect is ensured, the yield of the product obtained by injection molding is improved, and the release structure is simple in structure and has higher reliability.

Drawings

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

fig. 2 is an exploded view of a trip mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a partial trip structure according to an embodiment of the present invention;

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

fig. 5 is a schematic structural diagram III of a trip structure according to an embodiment of the present invention;

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

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

FIG. 8 is a schematic diagram of an exploded view of a trip mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a secondary slider according to an embodiment of the present invention;

FIG. 10 is a schematic view of an injection mold according to an embodiment of the present invention;

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

FIG. 12 is a view showing a reference to a first embodiment of an injection mold;

FIG. 13 is a second view of a usage status of an injection mold abrasive article according to an embodiment of the present invention;

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

FIG. 15 is a view showing a fourth embodiment of the present invention showing a mold for injection molding;

FIG. 16 is a view of a fifth embodiment of the present invention showing a mold for injection molding;

FIG. 17 is a view showing a sixth embodiment of the present invention showing a mold for injection molding;

fig. 18 is a schematic structural view of a product provided by an embodiment of the present 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 surface; 13. a primary slider; 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 through hole; 14. a tripping shovel base; 141. a first sloped wall; 142. dovetail blocks; 143. a main body portion; 144. a pushing part; 15. a secondary slide block; 151. a second sloped wall; 152. a dovetail groove; 153. forming a column; 17. a second elastic member;

2. oblique guide posts;

3. an ejection assembly; 31. a base; 311. a bar-shaped hole; 312. a first clamping groove; 32. an ejector; 321. a barrel; 322. a thimble; 323. drawing the core rod; 33. a toggle member; 34. a first elastic member;

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

10. static mold; 20. a movable mold; 30. a shovel base; 40. a rear mold core of the mold; 50. a mounting block;

100. 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 scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present invention are shown.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a tripping structure, which reduces the adhesion condition of 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 the injection molding grinding tool, so that the injection molding die has higher reliability. The product 100 may be of the construction shown in fig. 18, and in particular, 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 structure includes a slider assembly 1, a diagonal guide post 2, and an ejector assembly 3.

Wherein the slider assembly 1 has a first through hole 11, and in some embodiments, the first through hole 11 extends through both upper and lower sides of the slider assembly 1. The oblique guide post 2 is slidably inserted into the first through hole 11, and the extending direction of the oblique guide post 2 crosses the first direction X1, in fig. 4 of this embodiment, the first direction X1 may be a vertical upward direction, that is, the oblique guide post 2 is obliquely disposed relative to the slider assembly 1, so that when the oblique 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 far away from the mold back mold core of the injection mold, that is, the second direction X2 is a direction in which the slider assembly 1 is far 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 along with the oblique guide post 2 in the first direction X1. In this embodiment, the second direction X2 is perpendicular to the first direction X1.

As shown in fig. 2, the ejector 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 or slot structure in which the base 31 is secured. The base 31 is in a strip shape, 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 32 is parallel to the second direction X2.

In use, the trip structure provided in this embodiment is used, the slider assembly 1 and the ejector 32 are respectively in contact with the molded product 100. When the trip is required, the oblique guide post 2 is driven to move in the first direction X1, so that the oblique guide post 2 can drive the sliding block assembly 1 to move in the second direction X2. The movement of the oblique guide post 2 and the sliding block assembly 1 has two processes, namely an ejection process and a disengagement process, specifically, in the ejection process, the movement distance of the sliding block assembly 1 in the second direction X2 is smaller than or equal to a first preset distance, namely, when the sliding block assembly 1 moves in the second direction X2 for disengaging by the first preset distance, the base 31 and the ejection piece 32 can eject the product 100 in the second direction X2, at this time, the oblique guide post 2 drives the sliding block assembly 1 to be separated from the product 100, and the ejection piece 32 abuts against the product 100, so that the product 100 cannot be taken away due to acting force between the two when the sliding block assembly 1 is separated from the product 100. In the disengagement process, the moving distance of the slider assembly 1 in the second direction X2 is greater than the first preset distance, and when the distance that the oblique guide post 2 drives the slider assembly 1 to move in the second direction X2 is 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, so as to disengage the product 100.

According to the tripping structure provided by the embodiment, the ejector assembly 3 is fixedly arranged on the sliding block assembly 1, the ejector assembly 3 comprises the ejector 32, when the moving distance of the sliding block assembly 1 is smaller than or equal to the first preset distance, the ejector 32 and the base 31 can eject the product 100, so that the sliding block assembly 1 and the product 100 are smoothly separated, the probability that the buckling position of the product 100 is adhered to the sliding block assembly 1 is reduced, the effect that the product 100 is ejected by the tripping structure is achieved, the tripping effect is ensured, the yield of the product 100 obtained by injection molding is improved, and the structure is simple and has higher reliability.

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

In addition, as shown in fig. 3, the base 31 has a bar hole 311 extending along the second direction X2, and the middle portion of the toggle member 33 movably penetrates through the bar hole 311 and can slide in the bar 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 bar hole 311. When the oblique guide post 2 drives the sliding block assembly 1 to move a first preset distance in the second direction X2 to release, the toggle piece 33 slides in the strip-shaped hole 311 and does not push the base 31 to move in the second direction X2, so that the base 31 and the ejection piece 32 eject the product 100 in the second direction X2; when the distance that the oblique guide post 2 drives the sliding block assembly 1 to move in the second direction X2 is greater than the first preset distance, the toggle piece 33 pushes the base 31 and the ejection piece 32 to release the product in the second direction X2 through the hole wall of the bar-shaped hole 311. By the cooperation of the poking piece 33 and the strip-shaped hole 311, the ejector piece 32 can be propped against the product 100 when the sliding block assembly 1 is separated from the product 100. In some embodiments, the first predetermined distance is 10 millimeters, that is, the distance between the toggle 33 and the bar-shaped hole 311 is 10 millimeters. Alternatively, the toggle member 33 is embodied as a bar block, and the toggle member 33 extends along the first direction X1.

Alternatively, the manner in which the toggle member 33 is connected to the slider assembly 1 may be various, and for example, the slider assembly 1 has a hole structure or a slot structure communicating with the accommodating space, and the end portion of the toggle member 33 is inserted into the hole structure or the slot structure to achieve connection between the toggle member 33 and the slider assembly 1.

In some embodiments, the ejector 32 includes a barrel 321, where the barrel 321 passes through one end of the slider assembly 1 for abutting the first hole site 1001 of the product 100, so as to be able to push against the first hole site 1001 by the barrel 321 and eject the product 100. The other end of the driver 321 is fixedly connected to the base 31, so that the driver 321 can be driven to move when the base 31 moves, and the release structure is released from the product 100. Alternatively, the barrel 321 may be provided with one or more barrels, which is not limited in this embodiment, and when the barrel 321 is provided with a plurality of barrels, the first hole site 1001 is provided with a plurality of barrels, and the plurality of barrels 321 are abutted against the plurality of first hole sites 1001 in a one-to-one correspondence.

Further, the ejector 32 may further include a core-pulling rod 323, where the middle part of the core-pulling rod 323 is movably inserted into the barrel 321, one end of the core-pulling rod 323 passes through the slider assembly 1 and the barrel 321, and one end of the core-pulling rod 323 is used to form the first hole site 1001 of the product 100, and the other end of the core-pulling rod 323 is fixedly connected to the stirring member 33. When the toggle member 33 moves, one end of the core rod 323 can be driven to be pulled out from the first hole 1001, so as to complete the core pulling action.

In other embodiments, ejector 32 includes ejector pins 322, with ejector pins 322 passing through one end of slider assembly 1 for abutting against cantilevered locations 1002 of product 100 to enable ejection of product 100 by ejector pins 322 against cantilevered locations 1002. The other end of the thimble 322 is fixedly connected with the base 31, so that the thimble 322 can be driven to move when the base 31 moves, and further the release structure is released from the product 100. Alternatively, one or more pins 322 may be provided, which is not limited in this embodiment, and when a plurality of pins 322 are provided, a plurality of cantilever positions 1002 are provided, and the plurality of pins 322 are abutted against the plurality of cantilever positions 1002 in a one-to-one correspondence.

Note that, the ejector 32 may include only the ejector pin 322 or only the ejector barrel 321, or the ejector 32 may include both the ejector pin 322 and the ejector barrel 321, which is not limited in this embodiment.

Still alternatively, as shown in fig. 3, the ejector 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, and the first elastic member 34 is used for assisting the base 31 and the ejector 33 to reset and 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 sliding block assembly 1 in the second direction X2 is equal to the first preset distance, the sliding block assembly is a critical point of the first elastic member 34, and at this time, the first elastic member 34 is in a maximum compression state; when the moving distance of the sliding block 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 make the first elastic member 34 spring back to the pre-pressed 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 realize resetting. The first elastic member 34 may be a spring, for example.

In this embodiment, the trip structure further includes a limiting component 4, where the limiting component 4 abuts against the bottom surface of the slider component 1 and the side surface of the base 31, where the side surface of the base 31 is not connected with the ejector 32, and the limiting component 4 is used to limit the base 31 so as to prevent the base 31 from moving during the ejection process. When the sliding block assembly 1 moves along the second direction X2, the limiting assembly 4 can be pushed to move reversely along the first direction X1, the limiting assembly 4 is separated from the base 31, and the limiting of the limiting assembly 4 to the base 31 is further released.

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

Further, the limiting component 4 comprises a block-shaped limiting block and a return spring 42 connected to the lower portion of the limiting block, the first inclined surface 41 is arranged on the limiting block, the return spring 42 is located between the limiting block and the movable die, when the sliding block component 1 extrudes the limiting block, the return spring 42 is in a compressed state, when the sliding block component 1 does not extrude the limiting block any more, the limiting block is reset under the action of the return spring 42, and the top end of the limiting block is moved into the first clamping groove 312. In this embodiment, the first clamping groove 312 may be a notch at one end of the base 31, which is not limited in this embodiment. The first elastic member 34 cooperates with the return spring 42, so that the tripping structure has an automatic return function, and the efficiency of the tripping structure is improved.

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

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

In this embodiment, when the slider assembly 1 includes the trip shovel base 14, the first through hole 11 further includes a second sub-hole 112 disposed on the trip 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, and 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 slider to move through the second sub-hole, and then drives the primary slider 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 oblique guide post 2, that is, when the oblique guide post 2 moves, the release shovel base 14 can be directly driven to move.

The release structure further has a pre-release process, the pre-release process is located before the ejection process, in the pre-release process, the inclined guide post 2 moves along the first direction X1 and drives the release shovel base 14 to move along the second direction X2, and when the release shovel base 14 moves a second preset distance in the second direction X2, the release shovel base 14 can push the secondary slide block 15 to move, so that the secondary slide block 15 is separated from the product 100. Illustratively, when the trip shovel base 14 moves 22.5 millimeters in the second direction X2, the secondary slide 15 moves 6.5 millimeters in the opposite direction of the first direction X1. In this process, the oblique guide post 2 slides in the first sub-hole 111, and does not push the primary slider 13 to move in the second direction X2, that is, the primary slider 13, the base 31 and the ejector 32 are all stationary. When the moving distance of the tripping shovel base 14 in the second direction X2 is equal to the 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 hole wall of the first sub-hole 111 can push the primary 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 tripping shovel base 14 is provided with a first inclined wall 141, and as shown in fig. 9, the secondary slide 15 has a second inclined wall 151 which is mutually matched 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 with a T-shaped cross section, the other is provided with a dovetail groove 152 with a T-shaped cross section, and the dovetail block 142 slides in the dovetail groove 152. When the tripping shovel base 14 moves along the second direction X2, the secondary slide 15 can be pushed to move in the opposite direction of the first direction X1 by the dovetail block 142 and the dovetail groove 152 which are matched with each other, that is, the secondary slide 15 can be pulled down to move in the opposite direction of the first direction X1, so that the forming column 153 is pulled out from the second hole site 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 tripping shovel base 14 includes a main body 143 and a pushing portion 144 connected to a side of the main body 143 facing the product 100, the second sub-hole 113 is provided 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 slide 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, where the second elastic member 17 is disposed between the side of the main body 143 facing the product 100 and the second sub-block 132, and is used to assist the mold opening movement of the trip shovel base 14 and prevent 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, and therefore cannot be clamped, and the risk of die collision exists. Alternatively, the surface of the main body 143 facing the second sub-block 132 has a spring receiving hole in which one end of the second elastic member 17 is located. The second elastic member 17 is a spring, for example.

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 ejector sleeve 321 to pass through, and the fourth through hole 1323 is used for the ejector pin 322 to pass through.

The embodiment also provides an injection mold, as shown in fig. 10 and 11, which includes a stationary mold 10, a movable mold 20, and the above-mentioned trip structure. The sliding 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 the tripping structure, can be at the in-process of die sinking, can not appear the condition to the structure on the product 100 drawing crack, and the die sinking action is simple, can not appear striking the risk of mould when the compound die. In addition, by arranging the tripping structure, the requirements on the machining precision of the static die 10 and the movable die 20 are lower, and the overall cost of the injection mold is further reduced

Optionally, referring to fig. 10 and 11, the injection mold further includes a shovel base 30, where 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 oblique guide post 2 to move in the first direction X1 at the same time. The shovel base 30 is propped against one side of the sliding block assembly 1, which is opposite to the product 100, so that when the die is opened, the shovel base 30 can prevent the primary sliding block 12 from retreating in the process of retreating the secondary sliding block 15, and when the shovel base 30 moves away from the movable die 20 and is separated upwards, the primary sliding block 12 has a retreating space; and, when the mold is closed, the shovel base 30 cooperates with the inclined guide post 2 to drive the primary slide block 12 forward to move, so that the primary slide block 12 cooperates with the rear mold core 40 of the injection mold to form a molding cavity for molding the product 100. The oblique guide post 2 is connected with the static mold 10 through a mounting block 50, specifically, the bottom wall of the static mold 10 can be provided with a mounting groove, and the mounting block 50 is fixed in the mounting groove so as to realize the connection of the oblique guide post 2 and the static mold 10.

Fig. 12 to 17 are reference diagrams of the injection mold according to the present embodiment in a use process, wherein the stationary mold 10 and a part of the mold rear mold insert 40 are omitted. Fig. 12 is a state diagram of the injection mold before demolding, in which the molding column 153 of the secondary slide 15 is not disengaged from the product 100, and the diagonal guide column 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, meanwhile, the tripping shovel base 14 is driven to move along the second direction X2 through the second sub-hole 112, and the secondary slide block 15 is driven to move along the opposite direction of the first direction X1, so that the forming post 153 is separated from the second hole site 1003, at this time, the injection mold shows 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 driven to move in the first direction X1 continuously, at this time, the inclined guide post 2 drives the primary sliding block 13 and the tripping shovel 14 to move along the second direction X2 through the first sub-hole 111 and the second sub-hole 112, at the same time, the primary sliding block 13 drives the toggle member 33 to slide in the bar-shaped hole 311, at this time, the base 31 and the ejection member 32 eject the product 200, so that the product 100 is not easy to adhere to the primary sliding block 13 when the primary sliding block 13 is separated from the product 100. At this time, the injection mold takes the state shown in fig. 14, 15 and 16. As shown in FIG. 16, barrel 321 is positioned against first aperture 1001 of product 100 and spike 322 is positioned against cantilever 1002 of product 100. When the inclined guide post 2 is 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 from the mold back mold core 40.

The above embodiments merely illustrate the basic principle and features of the present invention, and the present invention is not limited to the above embodiments, but may be varied and altered without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (11)

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 inserted into the first through hole (11) in a sliding manner, the extending direction of the inclined guide post (2) is crossed in 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);

the ejection assembly (3) comprises a base (31) and an ejection piece (32) connected with the base (31),

when the inclined guide post (2) drives the sliding block assembly (1) to move a first preset distance in the second direction (X2) to release, the base (31) and the ejection piece (32) can eject a product (100) in the second direction (X2), when the inclined guide post (2) drives the sliding block assembly (1) to move a distance greater than the first preset distance in the second direction (X2), the sliding block assembly (1) drives the base (31) and the ejection piece (32) to release the product (100) in the second direction (X2);

the ejection assembly (3) further comprises a stirring piece (33), the base (31) is arranged in the accommodating space on the sliding block assembly (1), the base (31) is provided with a strip-shaped hole (311) extending along the second direction (X2), the middle part of the stirring piece (33) movably penetrates through the strip-shaped hole (311), and the stirring piece (33) is connected with the sliding block assembly (1);

when the distance that the oblique guide pillar (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), when the distance that the oblique guide pillar (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 ejection piece (32) to move in the second direction (X2) through the hole wall of the strip-shaped hole (311).

2. The trip structure according to claim 1, characterized in that said ejector (32) comprises a barrel (321), a thimble (322) and a core pulling rod (323), said barrel (321) passing through one end of said slider assembly (1) for abutting against a first hole site (1001) of a product (100), the other end of said barrel (321) being fixedly connected to said base (31); the thimble (322) passes through one end of the sliding block assembly (1) and is used for abutting against a cantilever position (1002) of the product (100), and the other end of the thimble (322) is fixedly connected with the base (31); the middle part activity of loosing core pole (323) is worn to locate in the section of thick bamboo (321), the one end of loosing core pole (323) is worn to pass slider subassembly (1) reaches section of thick bamboo (321), the one end of loosing core pole (323) is used for the shaping first hole site (1001) of product (100), the other end rigid coupling of loosing core pole (323) in stir piece (33).

3. The trip structure according to claim 1, characterized 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).

4. The trip structure according to claim 1, characterized in that said slider assembly (1) comprises a primary slider (13), said first through hole (11) comprising a first sub-hole (111) provided on said primary slider (13), said primary slider (13) having a molding surface (130) for molding said product (100).

5. The trip structure according to claim 4, characterized in that said slider assembly (1) further comprises a trip shovel base (14) and a secondary slider (15), said trip shovel base (14) being slidingly disposed within said primary slider (13) along said second direction (X2), said secondary slider (15) being pushed by said trip shovel base (14) to move in said first direction (X1) and said secondary slider (15) being intended to form a snap-fit 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 pillar (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 pillar, and the first sub-hole is provided with an avoidance space in a second direction (X2).

6. The trip structure according to claim 5, characterized in that one end of the trip shovel base (14) is provided with a first inclined wall (141), the secondary slider (15) has a second inclined wall (151) which is mutually fitted 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), the other is provided with a dovetail groove (152), and the dovetail block (142) slides in the dovetail groove (152).

7. The trip structure according to claim 5, characterized in that said primary slider (13) comprises a first sub-block (131) and a second sub-block (132) connected, said trip shovel base (14) comprises a main body portion (143) and a pushing portion (144) connected to a side of said main body portion (143) facing said product (100), said second sub-hole (113) is provided in said main body portion (143), and said main body portion (143) slides in said first sub-block (131), said pushing portion (144) slides in said second sub-block (132), said secondary slider (15) is pushed by said pushing portion (144) to move in said first direction (X1).

8. The trip structure of claim 7, characterized in that said slider assembly (1) further comprises a second elastic member (17), said second elastic member (17) being provided between said second sub-block (132) and a side of said main body portion (143) facing said product (100).

9. The trip structure according to claim 1, characterized in that it further comprises a limiting assembly (4), said limiting assembly (4) being abutted against the bottom surface of said slider assembly (1) and the side surface of said base (31) to which said ejector (32) is not connected, said slider assembly (1) being movable along said second direction (X2) to push said limiting assembly (4) to move in the opposite direction to said first direction (X1) and to separate said limiting assembly (4) from said base (31).

10. An injection mold, comprising a stationary mold (10), a movable mold (20) and the trip structure according to any one of claims 1 to 9, wherein the slider assembly (1) is slidably disposed on the movable mold (20), and the oblique guide post (2) is connected to the stationary mold (10).

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