CN216992931U

CN216992931U - Ejection structure and mold

Info

Publication number: CN216992931U
Application number: CN202221498400.6U
Authority: CN
Inventors: 牟文生; 刘聪
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-07-19
Anticipated expiration: 2032-06-16

Abstract

The utility model relates to the technical field of molds, and particularly discloses an ejection structure and a mold. The ejection structure comprises an ejector rod and a forming insert, the ejector rod comprises an ejection section and connecting ends connected to two ends of the ejection section, and one connecting end is used for connecting an ejector plate of the die; one end of the forming insert is detachably connected to the other connecting end, and the peripheral surface of the forming insert and the peripheral surface of the ejector rod are not coplanar. The ejection structure of the technical scheme of the utility model can improve the repair precision and convenience.

Description

Ejection structure and mold

Technical Field

The utility model relates to the technical field of molds, in particular to an ejection structure and a mold.

Background

The ejection of the plastic product is the last link in the injection molding process, when the product is solidified in a mold, the product needs to be ejected out of the mold by an ejection structure, and the quality of the ejection quality finally determines the quality of the product.

However, the existing ejector block type ejection structure is generally an integral structure, the upper end of the ejector block type ejection structure is a forming structure and a sealing structure, the lower end of the ejector block type ejection structure is a moving ejection part, a sealing surface of the sealing structure and a friction surface of the moving ejection part are the same surface, the sealing surface needs to be tightly matched in order to avoid long burrs, the friction surface needs to be loosely matched in order to move smoothly, and when the problem of one surface is repaired, the other surface always influences other parts after being reassembled, so that the problem of improper repair is caused.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an ejection structure and aims to solve the problem that the ejection structure cannot be repaired.

In order to achieve the above object, the ejection structure provided by the present invention comprises:

the ejector rod comprises an ejection section and connecting ends connected to two ends of the ejection section, and one connecting end is used for connecting an ejector plate of the mold; and

the shaping goes into the son, the shaping goes into son can dismantle to be connected in another the link, the outer peripheral face that the shaping goes into the son with all coplanarities of global of ejector pin are all not.

Optionally, the other of the connecting ends is in threaded connection with the forming insert.

Optionally, a threaded hole is formed in an end of the other connecting end, the forming insert is provided with a through hole, the cross-sectional area of the other connecting end is smaller than that of the ejection section, the other connecting end is arranged in the through hole in a penetrating manner, and the forming insert abuts against the end face of the ejection section;

and a connecting piece sequentially penetrates through the through hole and the threaded hole to connect the forming insert and the ejector rod.

Optionally, at least part of the cross section of the ejection section is a circular arc line;

and/or the cross section of the other connecting end is square;

and/or the cross section of the molded insert is rectangular.

Optionally, the ejection section is provided with an oil groove, and the oil groove is annularly arranged on the circumferential surface of the ejection section and is close to the other connecting end.

Optionally, the oil groove is provided with a plurality of oil grooves, and the plurality of oil grooves are arranged at intervals in the length direction of the ejection section.

Optionally, the ejection structure further includes a guide sleeve, the guide sleeve is sleeved on the ejection section, and the ejection section is slidably disposed relative to the guide sleeve.

Optionally, the ejection structure further includes a pressing block, the pressing block is disposed on the periphery of the ejector rod, and one surface of the pressing block abuts against the end surface of the guide sleeve, which deviates from the forming insert.

Optionally, the periphery of the ejector rod is formed with an abutting plane, and the press block is formed with an abutting plane, which is slidably disposed with respect to the abutting plane.

The utility model also provides a die, which comprises an upper die, a lower die and the ejection structure, wherein the ejection structure is arranged in the lower die, and the forming insert is exposed on the surface of the lower die facing the upper die.

Optionally, the lower die includes a lower die plate, a supporting plate and an ejector plate, the lower die plate and the supporting plate enclose to form an ejection space, the ejector plate is movably disposed in the ejection space, the ejection structure is disposed on the lower die plate, a connection end of the ejector rod extends into the ejection space to be connected to the ejector plate, and an elastic member is sleeved on a portion of the ejector rod located in the ejection space.

The ejection structure comprises the ejector rod and the forming insert, wherein the forming insert comprises a forming surface of a formed product and is connected to the other connecting end of the ejector rod, and when the product is ejected, the ejector rod is pushed to drive the forming insert to eject through the movement of the ejector plate connected with the connecting end of the ejector rod, so that the product is ejected. Here, go into son and ejector pin with the shaping and set up to the components of a whole that can function independently structure, and the shaping goes into the global of son and the global not in the coplanar of ejector pin, thereby can repair to both respectively, the shaping goes into the size of son and needs to carry out the smart repair, and the ejector pin is used for sliding ejecting, only need guarantee the surface smooth can, both can assemble again after repairing alone, each other does not influence, can guarantee respective repair precision, thereby when preventing the deckle edge from appearing, crush injury, the poor scheduling problem of section, also can reduce the dead probability of card, the demand of shaping and motion performance synchronization is good has been satisfied. Meanwhile, the two can be detachably connected, and the formed insert can be repaired without integrally removing the ejection structure from the die, so that the repair is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an ejection structure in an embodiment of a mold according to the present invention in an unextruded state;

FIG. 2 is a schematic structural view of an ejection state of the ejection structure in the mold shown in FIG. 1;

FIG. 3 is a cross-sectional view of the ejection structure of the mold of FIG. 1 in an unextruded state;

fig. 4 is a sectional view showing an ejection state of the ejection structure in the mold shown in fig. 1;

FIG. 5 is a schematic structural view of an ejection structure in the mold shown in FIG. 1;

FIG. 6 is an exploded view of the ejection structure shown in FIG. 5;

FIG. 7 is a schematic view of a mold insert in the ejection structure shown in FIG. 5;

fig. 8 is a schematic structural view of the ejector rod in the ejection structure shown in fig. 5.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name(s)
				100	Die set	123	Sealing rubber surface
10	Ejection structure	13	Connecting piece
				11	Top rod	14	Guide sleeve
111	Ejecting section	15	Pressing block
				1111	Oil groove	151	Butt joint plane
1113	Abutting plane	20	Lower die
				113	Connecting end	20a	Ejecting space
1131	Threaded hole	21	Lower template
				12	Forming insert	22	Supporting plate
121	Perforation	23	Ejector plate
				122	Molding surface

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an ejection structure which is used for ejecting a product in a mold. According to the scheme, the forming insert and the ejector rod are arranged into two separable parts, so that the problem that only one part of the forming insert and the ejector rod cannot be separately repaired in the repairing process is solved.

Referring to fig. 3 to fig. 5 and fig. 7, in an embodiment of the present invention, the ejection structure 10 includes an ejector rod 11 and a molding insert 12, where the ejector rod 11 includes an ejection section 111 and connection ends 113 connected to two ends of the ejection section 111, and one of the connection ends 113 is used to connect to an ejector plate 23 of the mold 100; one end of the molding insert 12 is detachably connected to the other connecting end 113, and the peripheral surface of the molding insert 12 and the peripheral surface of the push rod 11 are not coplanar.

In the present embodiment, the ejection structure 10 is of an ejector block type, that is, a straight ejection type when used to eject a product of the mold 100, and therefore it is required to consider both movement and a molded part in one direction. Specifically, the ejection structure 10 includes a molding insert 12, where the molding insert 12 is also called an insert, that is, a molding portion of the ejection structure 10, and is a portion of a cavity formed by matching with a corresponding mold core, so that a product is molded in the cavity. Therefore, the surface of the molding insert 12 includes a molding surface 122 and a sealant surface 123 disposed around the molding surface 122, and the sealant surface 123 is used for filling a sealant, thereby sealing the cavity and preventing burrs of the product.

The ejector rod 11 is a moving part for ejecting a product, and is generally disposed in a rod body, and the shape of the cross-sectional area may be a circle, a square or other shape, which is not limited herein. The middle part of the ejector rod 11 is an ejection section 111 which mainly plays a sliding role in the mold 100, two ends of the ejection section 111 are respectively connected with two connecting ends 113, one connecting end 113 is used for being connected with an ejector plate 23, the ejection section 111 is driven to move through the ejector plate 23 so as to realize ejection motion, and the other connecting end 113 is connected with the forming insert 12 so as to push the forming insert 12 to eject a product. Here, the connection manner of the molded insert 12 and the other connection end 113 may be a threaded connection, an insertion connection, or a snap connection, and the like, which is not limited herein, as long as the molded insert 12 can be detached when needed, for example, when the ejection structure 10 is assembled for the first time, or when the ejection structure is subsequently maintained and replaced, so that the ejection structure 10 does not need to be detached as a whole, thereby effectively improving convenience. Of course, the connection mode of the ejector rod 11 and the ejector plate 23 may be a screw connection, a snap connection, an insertion connection, or the like, and is not limited herein. Optionally, the ejection section 111 and the two connecting ends 113 are of an integrated structure, so that the structural strength of the ejector rod 11 is effectively guaranteed, the connection stability is improved, and the service life of the ejection structure 10 is effectively guaranteed.

Meanwhile, the peripheral surface of the plunger 11 and the peripheral surface of the insert 12 are not coplanar, that is, the peripheral surface of the insert 12 and the peripheral surface of the plunger 11 are arranged in a staggered manner, for example, the cross section of the insert 12 is larger than that of the plunger 11, so that when the insert 12 is mounted on the plunger 11, the end surface of the insert 12 covers the peripheral surface of the plunger 11, so that the two are not coplanar, or the cross section of the plunger 11 is different from that of the insert 12, so that the peripheral surface of the plunger 11 and the peripheral surface of the insert 12 are not coplanar. So, when processing the cooperation, can have corresponding repairing and fitting respectively, both repairing and fitting precision can be different, need not to consider both simultaneously with mould 100's cooperation degree, further reduced the repairing and fitting degree of difficulty, effectively promote the product yield.

The ejection structure 10 of the technical scheme of the utility model comprises an ejector rod 11 and a forming insert 12, wherein the forming insert 12 comprises a forming surface 122 of a formed product, the forming surface is connected to the other connecting end 113 of the ejector rod 11, and when the product is ejected, the ejector rod 11 is pushed to drive the forming insert 12 to eject by the movement of an ejector plate 23 connected with the connecting end 113 of the ejector rod 11, so that the product is ejected. Here, go into son 12 and ejector pin 11 with the shaping and set up to the components of a whole that can function independently structure, and the shaping goes into son 12 global all not coplane with ejector pin 11 global, thereby can repair to both respectively, the shaping goes into son 12's size needs to carry out the essence and repairs, and ejector pin 11 is used for sliding ejecting, only need guarantee the surface smooth can, both can assemble again after repairing alone, each other does not influence, can guarantee respective repair and repair the precision, thereby when preventing that deckle edge from appearing, crushing, the poor scheduling problem of section, also can reduce the dead probability of card, the demand that shaping and motion performance are good in step has been satisfied. Meanwhile, the two can be detachably connected, and the formed insert 12 can be repaired without integrally removing the ejection structure 10 from the mold 100, so that the repair is more convenient.

Optionally, another of the connection ends 113 is threadedly connected to the mold insert 12.

In this embodiment, in order to improve the connection stability, the top rod 11 and the insert 12 are assembled by screw connection. That is, a terminal surface of the forming insert 12 is in threaded connection with the other connecting end 113, and can be connected in the sliding direction parallel to the ejector rod 11, so that the structural stability can be improved, the assembling can be facilitated, the installation is not required to be laborious, and the forming surface 122 of the forming insert 12 and the sliding surface of the ejector rod 11 can be effectively ensured when the forming insert is repeatedly disassembled.

With reference to fig. 6 and fig. 8, optionally, a threaded hole 1131 is formed at an end of the other connecting end 113, a through hole 121 is formed in the mold insert 12, a cross-sectional area of the other connecting end 113 is smaller than a cross-sectional area of the ejecting section 111, the other connecting end 113 is inserted into the through hole 121, and the mold insert 12 abuts against an end surface of the ejecting section 111;

a connecting member 13 sequentially penetrates through the through hole 121 and the threaded hole 1131 to connect the molding insert 12 and the top rod 11.

In this embodiment, a threaded hole 1131 is formed in an end surface of the connecting end 113, a through hole 121 is formed in the molding insert 12 in a direction parallel to the molding surface 122, the through hole 121 penetrates through two opposite surfaces of the molding insert 12, and thus the connecting element 13 is sequentially inserted into the through hole 121 and the threaded hole 1131 through the top end of the molding insert 12 for connection and fixation. Further reducing the impact on the sliding ejection and molding surface 122. Meanwhile, the through hole 121 is formed in the center of the molding insert 12, and the threaded hole 1131 is also formed in the center of the end face of the connecting end 113, so that the connection stability and the force application uniformity are further improved. Specifically, the connecting member 13 may be a bolt, a screw, a bolt, or the like, and is not limited herein. When the screw is used, the installation is more convenient and efficient.

Meanwhile, a step is formed between the connecting end 113 and the ejecting section 111, that is, the cross-sectional area of the ejecting section 111 is larger than that of the connecting end 113, so that the step faces the molding insert 12. When the forming insert 12 is connected with the connecting end 113, the connecting end 113 can be integrally inserted into the through hole 121, and when the end surface of the forming insert 12 abuts against the step surface, the end surface of the ejection section 111 is also ejected, so that a certain positioning effect is provided for the connection of the forming insert 12 and the step surface, the threaded connection is convenient to carry out, and the assembly efficiency is improved. Meanwhile, the contact surface between the connecting end 113 and the forming insert 12 is increased, and the connection stability can be further improved.

Of course, in other embodiments, the end surface of the connecting end 113 may directly abut against the surface of the insert 12 to be inserted into the connecting member 13.

Referring to fig. 6, optionally, at least a portion of the cross section of the ejection section 111 is a circular arc line;

and/or the cross section of the other connecting end 113 is square;

and/or the cross section of the forming insert 12 is rectangular.

In this embodiment, in order to improve the ejection smoothness of the ejection section 111, at least a part of the cross section of the ejection section 111 is a circular arc line, for example, the cross section of the ejection section 111 is circular, oval, or the like, that is, all of the cross sections are circular arc lines. Of course, when other structural requirements exist, the cross section of the ejection section 111 includes a circular arc line and a straight line, and a part of the circular arc line is a circular arc line. Because the circular mechanism motion in the mould 100 is more stable firm, consequently, the circular-arc surface of ejecting section 111 compares in current square structure, can further promote the smooth and easy nature of sliding, has greatly reduced the dead probability of card, promotes ejecting success rate.

When the cross section of the ejecting section 111 is at least partially circular arc-shaped, the cross section of the forming insert 12 is rectangular. It can be understood that the square structure is convenient for fixing and processing, and the processing precision is high, can effectively improve the precision of repairing and matching, promotes the product yield, so, can form stably in the mould 100, and the stable structure of sliding combines together, forms the ejection structure 10 of this embodiment that ejection performance is better. Here, the through hole 121 may be formed in the height direction of the insert 12, the molding surface 122 may be formed on one side surface in the length direction, and the molding surface 122 may occupy only a small portion of the side edge, and may have a small area, and may be separately repaired, thereby effectively improving the problem of burrs, pressure damages, or strain damages. Of course, the cross section of the insert 12 may be rectangular without limiting the cross section of the ejection section 111 to be at least partially circular.

It is optional, at least part at ejecting section 111's cross section is the circular arc line, and the cross section that the son 12 was gone into in the shaping is when the rectangle, can set up the cross section of another link 113 to square, the perforation 121 that the son 12 was gone into in the shaping that corresponds also is the quad slit, thereby wear to establish with link 113 carries out the adaptation, this square link 113 machining precision of being convenient for, thereby can go into son 12 with the shaping and assemble better, and the setting of quad slit, also can prevent that the shaping from going into and take place to rotate between son 12 and the link 113, further promote the shaping and go into the convenience of son 12 fixed stability and threaded connection. Of course, in order to facilitate the penetration, a chamfer is provided at the opening edge of the through hole 121, thereby facilitating the insertion of the other connection end 113. Simultaneously, the all sides of another link 113 carry out the radius angle setting, prevent sharp-pointed edge fish tail or inconvenient wearing to establish to promote equipment security and convenience.

Of course, the cross section of the other connecting end 113 may be square on the basis that at least part of the cross section of the ejection section 111 is not limited to be a circular arc line. Or on the basis of not limiting the cross section of the formed insert 12 to be rectangular, the cross section of the other connecting end 113 is square.

Referring to fig. 6 and 8, optionally, the ejecting section 111 is provided with an oil groove 1111, and the oil groove 1111 is annularly disposed on the circumferential surface of the ejecting section 111 and is close to the other connecting end 113.

In this embodiment, in order to further improve the smoothness of the sliding of the ejection section 111, the ejection section 111 is provided with an oil groove 1111, the oil groove 1111 is annularly arranged on the circumferential surface of the ejection section 111, and before the assembly, lubricating oil is added into the oil groove 1111, so that the friction between the ejection section 111 and the inner wall of the sliding cavity of the ejection section is reduced, and the smoothness and efficiency of the ejection are further improved. Simultaneously, this oil groove 1111 is close to link 113, and when ejecting section 111 was ejecting, can partially expose in the outside of mould 100, and then can use a period after, need not to demolish ejector pin 11, just conveniently carries out the interpolation of lubricating oil to oil groove 1111, promotes the convenience.

Of course, in other embodiments, the oil groove 1111 may also be a plurality of groove segments, and the plurality of groove segments are arranged at intervals around the ejection segment 111.

Optionally, the oil groove 1111 is provided in plurality, and the oil grooves 1111 are spaced apart in the longitudinal direction of the ejection section 111.

In this embodiment, for further promotion lubricated effect, in ejecting section 111's length direction, be provided with a plurality of oil grooves 1111, and oil groove 1111 is cyclic annular to can persist more lubricating oil, promote ejecting section 111's lubricity, guarantee ejecting movement's further smooth and easy, solve the card problem of dying.

Of course, the oil groove 1111 closest to the other connection end 113 needs to have a certain distance from the other connection end 113, so that the oil can be effectively reduced from entering the connection end 113 and further from entering the forming surface 122. Here, the forming surface 122 is disposed at one end of the forming insert 12 away from the connecting end 113 in the height direction, so that the lubricating oil can be kept away from the forming surface 122, and the product is not polluted.

Referring to fig. 6, optionally, the ejection structure 10 further includes a guide sleeve 14, the guide sleeve 14 is sleeved on the ejection section 111, and the ejection section 111 is slidably disposed relative to the guide sleeve 14.

In this embodiment, in order to further promote the smooth and easy nature of sliding, still overlap at the outer peripheral face of ejecting section 111 and be equipped with guide pin bushing 14, so, can process guide pin bushing 14 alone to promote the smoothness of its inside face, then reduce with ejecting section 111's friction, the dead condition of card appears in the further reduction. Here, the guide sleeve 14 needs to be placed through the inner groove of the mold 100, and abuts against the upper end of the guide sleeve 14 through the stepped surface to prevent the guide sleeve from moving synchronously with the ejection section 111. Of course, the length of the guide sleeve 14 should not be too long, otherwise the sliding of the ejection section 111 is affected, and the size of the mold 100 is increased. Its length should also not be too little, can set up its extension and the length that oil groove 1111 takes up on ejecting section 111 to when guaranteeing the sliding effect, also can provide reserve space for lubricating oil.

With reference to fig. 5 and fig. 6, optionally, the ejection structure 10 further includes a pressing block 15, the pressing block 15 is disposed on the periphery of the ejector rod 11, and a surface of the pressing block 15 abuts against an end surface of the guide sleeve 14 that is away from the forming insert 12.

In this embodiment, since the ejection structure 10 needs to be pulled back into the mold 100 by using an internal elastic structure after being ejected, in order to prevent the guide sleeve 14 from loosening in the vertical direction when the ejection section 111 moves downward, a pressing block 15 is set and fixed on the periphery of the ejector rod 11, where there is no connection relationship with the ejector rod 11, and the pressing block 15 is fixed on the mold 100 by the connection structure and located on the periphery of the ejection section 111 and the lower end of the guide sleeve 14, so that one surface of the pressing block 15 can abut against the lower end surface of the guide sleeve 14, thereby effectively preventing the loosening of the pressing block and improving the stability of the ejection structure 10 in the back-and-forth ejection process.

Alternatively, the circumference of the ejector rod 11 is formed with an abutment plane 1113, the pressing block 15 is formed with an abutment plane 151, and the abutment plane 1113 is slidably disposed with respect to the abutment plane 151.

In this embodiment, in order to further improve the sliding stability, the abutting plane 1113 may be formed on the peripheral side of the ejection section 111, and correspondingly, the pressing block 15 is formed with the abutting plane 151, so that the two are fitted and adapted, and a certain guiding effect can be exerted on the sliding of the ejector rod 11, thereby further improving the sliding stability.

Here, when ejecting section 111 selects the cylinder to process, can be to its rip cutting, through the minor arc formation of excision a part, so, the material of cylinder is mostly standard component, and processing cycle is short, and the expense is low, can effectively practice thrift the processing cost.

In addition, the connecting end 113 of the ejector rod 11 connected with the ejector plate 23 may have the same cross-sectional shape as the ejector section 111, i.e., the two are of an integral structure.

Referring to fig. 1 to 4, the present invention further provides a mold 100, where the mold 100 includes an upper mold, a lower mold 20 and the ejection structure 10, the ejection structure 10 is disposed in the lower mold 20, and the molding insert 12 is exposed on a surface of the lower mold 20 facing the upper mold. The specific structure of the ejection structure 10 refers to the above embodiments, and since the mold 100 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and details are not repeated here.

With reference to fig. 1 and fig. 2, optionally, the lower mold 20 includes a lower mold plate 21, a supporting plate 22 and an ejector plate 23, the lower mold plate 21 and the supporting plate 22 enclose to form an ejection space 20a, the ejector plate 23 is movably disposed in the ejection space 20a, the ejection structure 10 is disposed on the lower mold plate 21, a connecting end 113 of the ejector rod 11 extends into the ejection space 20a to be connected to the ejector plate 23, and a portion of the ejector rod 11 located in the ejection space 20a is sleeved with an elastic member.

In this embodiment, the lower mold 20 includes a supporting plate 22, where the supporting plate 22 includes a bottom plate and a side plate connected to the bottom plate, the supporting plate 22 provides a mounting base and a fixing base in the ejection process, the lower mold plate 21 encloses to form an ejection space 20a, an ejector plate 23 is disposed in the ejection space 20a, and the ejector plate 23 can be driven to move upward to perform ejection motion, so that the ejector rod 11 and the molding insert 12 can be driven to move to eject a product. Of course, in other embodiments, the lower mold 20 may further include a lower fixing plate, and the supporting plate 22 is only a side wall portion disposed between the lower fixing plate and the lower mold plate.

Meanwhile, an elastic member, such as a spring or a spring tube, is sleeved on the portion of the ejector rod 11 located in the ejection space 20a, and during the upward ejection process, the elastic member is compressed, so that after the ejection is completed, the driving structure is removed, and the elastic member can pull back the ejection structure 10 by its restoring force, so as to facilitate the next processing and use.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An ejection structure for ejecting a product in a mold, the ejection structure comprising:

the shaping goes into the son, the one end of shaping income son can be dismantled and connect in another the link, the outer peripheral face of shaping income son with the global all coplane not all of ejector pin.

2. The ejection structure of claim 1, wherein the other of the attachment ends is threadably connected to the molded insert.

3. The ejection structure according to claim 2, wherein a threaded hole is formed at an end of the other connecting end, the forming insert is provided with a through hole, the cross-sectional area of the other connecting end is smaller than that of the ejection section, the other connecting end is arranged in the through hole in a penetrating manner, and the forming insert abuts against an end face of the ejection section;

4. The ejection structure of claim 1, wherein at least a portion of the cross-section of the ejection section is a circular arc;

and/or the cross section of the other connecting end is square;

and/or the cross section of the molded insert is rectangular.

5. The ejection structure according to claim 1, wherein the ejection section is provided with an oil groove, and the oil groove is annularly arranged on the circumferential surface of the ejection section and is close to the other connecting end.

6. The ejection structure according to claim 5, wherein the oil groove is provided in plurality, and the plurality of oil grooves are provided at intervals in a length direction of the ejection section.

7. The ejection structure according to any one of claims 1 to 6, further comprising a guide sleeve, wherein the guide sleeve is sleeved on the ejection section, and the ejection section is slidably disposed relative to the guide sleeve.

8. The ejection structure of claim 7, further comprising a pressing block, wherein the pressing block is disposed on the periphery of the ejector rod, and a surface of the pressing block abuts against an end surface of the guide sleeve facing away from the mold insert.

9. The ejection structure according to claim 8, wherein the ejector pin is formed with an abutment plane on a peripheral side thereof, and the press block is formed with an abutment plane slidably provided with respect to the abutment plane.

10. A mold comprising an upper mold, a lower mold, and the ejection structure of any one of claims 1 to 9, wherein the ejection structure is disposed in the lower mold, and the molding insert is exposed on a surface of the lower mold facing the upper mold.

11. The mold of claim 10, wherein the lower mold comprises a lower mold plate, a support plate and an ejector plate, the lower mold plate and the support plate enclose to form an ejection space, the ejector plate is movably arranged in the ejection space, the ejection structure is arranged on the lower mold plate, a connecting end of the ejector rod extends into the ejection space to be connected with the ejector plate, and an elastic member is sleeved on a part of the ejector rod, which is located in the ejection space.