WO2020073319A1

WO2020073319A1 - Injection mold and injection molding method

Info

Publication number: WO2020073319A1
Application number: PCT/CN2018/110073
Authority: WO
Inventors: 朱智鹏; 段磊; 周军; 薛团委; 胡鹏; 李涛
Original assignee: 深圳市丽福科技有限责任公司
Priority date: 2018-10-12
Filing date: 2018-10-12
Publication date: 2020-04-16

Abstract

An injection mold and an injection molding method. The injection mold comprises a front mold (10) and a rear mold (20) which are matched, mold cavities (30) for injection molding liquid to flow in are formed by the front mold (10) and the rear mold (20), a first portion (1301) of workpieces (130) can be partly contained in the mold cavities (30), so that the first portion (1301) of the workpieces (130) and a second portion (1302) of the workpieces (130) are integrally molded to form the workpieces (130) when injection molding the second portion (1302) of the workpieces (130). The mold cavities (30) for the injection molding liquid to flow in are formed by the front mold (10) and the rear mold (20) of the injection mold, the first portion (1301) of the workpieces (130) can be partly contained in the mold cavities (30), so that the first portion (1301) of the workpieces (130) and the second portion (1302) of the workpieces (130) are integrally molded to form the workpieces (130) when injection molding the second portion (1302) of the workpieces (130) by the injection molding liquid entering the mold cavities (30). A process of assembling the first portion (1301) of the workpieces (130) and the second portion (1302) of the workpieces (130) is omitted. Compared with the existing process of independently manufacturing two parts of each workpiece (130) firstly and then assembling the two parts, the production efficiency can be improved, and the production cost can be reduced.

Description

Injection mold and injection molding method

Technical field

The invention belongs to the technical field of molds, and particularly relates to an injection mold and an injection molding method.

Background technique

Electronic cigarettes are mainly used to quit smoking and replace cigarettes. They are generally composed of three parts: a smoke bomb, a heating device, and a battery. The heat-generating device heats the smoke bombs through battery power to generate mist for the user to smoke.

technical problem

The heating device of the existing electronic cigarette is generally composed of a heating body and a supporting member, and the heating body and the supporting member need to be separately manufactured first, and then assembled manually. However, this will lead to technical problems of increased manual assembly costs and lower assembly efficiency.

Technical solution

The technical problem to be solved by the present invention is to provide a connection structure and a feeding device for the existing technical problem that the capacitor element is clamped and fixed by the feeding clip, which causes the capacitor element to be damaged and affects its electrical performance.

In order to solve the above technical problem, on the one hand, an embodiment of the present invention provides an injection mold, including a matching front mold and a rear mold, the front mold and the rear mold forming a mold cavity into which injection fluid flows, the first part of the workpiece A part can be partially accommodated in the mold cavity, so that when the second part of the workpiece is injection molded, the first part and the second part are integrally formed to form the workpiece.

Optionally, the number of the mold cavities is plural, and the number of the first parts is plural, and each of the first parts is correspondingly accommodated in each of the mold cavities.

Optionally, at least one of the front mold and the rear mold is formed with a flow channel, the flow channel is in communication with a plurality of the mold cavities, so that the injection liquid flows through the flow channel into a plurality of Inside the cavity.

Optionally, the injection mold further includes a nozzle, which is used to connect an injection molding machine that generates the injection liquid, and the nozzle is installed on the front mold and extends into the flow channel to The injection liquid produced by the injection molding machine is allowed to enter the flow channel through the nozzle.

Optionally, the flow channel includes a main flow channel and a flow distribution channel, the flow distribution channel is connected to the main flow channel and a plurality of the mold cavities, so that the injection liquid in the main flow channel flows through the flow distribution channel After entering a plurality of the cavity.

Optionally, the shunt channel includes a first shunt channel extending in a first direction, the first shunt channel communicates with the main channel and the plurality of mold cavities, and the first shunt channel is symmetrically distributed in Both sides of the main flow channel, so that the injection liquid in the main flow channel flows into the plurality of mold cavities after flowing through the first branch channel.

Optionally, the shunt channel further includes a second shunt channel extending in a second direction, the second shunt channel communicates with the first shunt channel and the plurality of mold cavities, and the second shunt channel It is symmetrically distributed on both sides of the first branching channel, so that the injection liquid in the first branching channel flows into the plurality of mold cavities after passing through the second branching channel.

Optionally, a liquid outlet is formed on the second branching channel, and the liquid outlet is connected to the second branching channel and the plurality of mold cavities, so that the injection liquid in the second branching channel passes through the The liquid outlet enters into the plurality of mold cavities.

Optionally, the number of the liquid outlets is multiple, and the multiple liquid outlets are provided in one-to-one correspondence with the multiple mold cavities.

Optionally, the cross-sectional area of the liquid outlet gradually decreases from the second branch channel to the mold cavity.

Optionally, the mold cavity includes a first mold cavity formed on the front mold and a second mold cavity formed on the rear mold, and the injection mold further includes a jack for carrying the workpiece Part, the jacking member slides through the rear mold and can extend into the second mold cavity, the jacking member can drive the workpiece when the front mold is separated from the rear mold Move in the third direction to disengage the workpiece from the second mold cavity.

Optionally, the jacking member includes a body and a support portion connected to the body, the body is disposed obliquely relative to the rear mold, the support portion is used to carry the second portion, and the body can be driven The supporting part moves simultaneously in the first direction and the third direction, so that the supporting part drives the workpiece away from the second mold cavity and separates from the workpiece.

Optionally, the injection liquid in the flow channel forms a spout connected to the second part, the injection mold further includes a thimble for carrying the spout, the thimble slides through the rear mold And can extend into the flow channel, the thimble can drive the nozzle to move in the third direction when the front mold and the rear mold are separated, so that the nozzle is separated from the flow channel.

Optionally, the injection mold further includes a jacking plate, the jacking member and the thimble are installed on the jacking plate, and the jacking plate can drive the jacking member and the thimble along The third direction moves simultaneously to extend the jacking member into the second mold cavity and remove the workpiece from the second mold cavity, and at the same time to extend the ejector pin to the second mold cavity In the flow channel and remove the nozzle from the flow channel.

Optionally, the injection mold further includes a connecting plate connected to the lifting plate, and the thimble is limited between the lifting plate and the connecting plate.

Optionally, a side of the jacking plate facing the connecting plate is provided with a limiting hole, and the thimble is located in the limiting hole.

Optionally, the limit hole includes a first hole segment and a second hole segment communicating with the first hole segment, the diameter of the first hole segment is greater than the diameter of the second hole segment, the first A step is formed at the connection between a hole segment and the second hole segment, the thimble includes a large-diameter part and a small-diameter part connected to the large-diameter part, the small-diameter part protrudes from the second It can extend into the flow channel, the small-diameter portion is used to carry the nozzle, one end of the large-diameter portion abuts the step, and the other end of the large-diameter portion abuts the connection plate.

Optionally, the injection mold further includes a guide post provided on the jacking plate, a guide hole is provided on the rear mold, and the guide post cooperates with the guide hole to lift the jack The movement of the board is guided.

Optionally, the injection mold further includes an elastic member sleeved on the guide post, and the elastic member elastically abuts between the rear mold and the lifting plate.

On the other hand, an embodiment of the present invention also provides an injection molding method, including the following steps:

Place the first part of the workpiece in the mold cavity; and

An injection liquid is injected into the mold cavity, so that when the second part of the workpiece is injection molded, the first part and the second part are integrally formed to form the workpiece.

Beneficial effect

The implementation of the embodiments of the present invention will have the following beneficial effects:

In the injection mold of the embodiment of the present invention, the front mold and the rear mold form a mold cavity into which the injection fluid flows. The first part of the workpiece can be partially accommodated in the mold cavity, so that the injection fluid that enters the mold cavity is in the first place of the injection molded workpiece. In the case of two parts, the first part and the second part are integrally formed to form a workpiece. In this way, the assembly process of the first part and the second part is omitted. Therefore, compared with the existing two parts which are manufactured separately and then assembled, the injection mold according to the embodiment of the present invention can improve production efficiency and reduce production costs.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without paying any creative labor, other drawings can be obtained based on these drawings.

1 is a schematic diagram of an injection mold in an embodiment;

2 is an exploded view of an injection mold in an embodiment;

3 is another exploded view of the injection mold in one embodiment;

4 is a cross-sectional view of an injection mold in an embodiment;

FIG. 5 is an enlarged view at A in FIG. 4;

6 is another cross-sectional view of an injection mold in an embodiment;

7 is a schematic diagram of the front core of the injection mold in one embodiment;

FIG. 8 is a schematic diagram of the rear core of the injection mold in one embodiment.

The reference signs in the description are as follows:

10. Front mold; 101, front mold base; 102, front mold core;

20. Rear mold; 201. Rear mold base; 202. Rear mold core;

30, mold cavity; 301, first mold cavity; 302, second mold cavity;

40. Flow channel; 401. Main channel; 402. Diversion channel; 4021. First diversion channel; 4022. Second diversion channel; 40221. Outlet;

50. Lifting parts; 501, body; 502, supporting part;

60. Thimble; 601, large diameter part; 602, small diameter part;

70, jacking plate; 701, limit hole; 7011, first hole section; 7012, second hole section;

80. Jack-up seat;

90. Connection board;

100. Guide post;

110, elastic parts;

120. Outlet;

130, the workpiece; 1301, the first part; 1302, the second part;

140. Chirp;

150. Front mold fixing plate;

160. Rear mold fixing seat.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIGS. 1 to 3, an embodiment of the present invention provides an injection mold. The injection mold includes a matching front mold 10 and rear mold 20. The front mold 10 and the rear mold 20 form a cavity 30 into which injection liquid flows. The first portion 1301 of the workpiece 130 can be partially accommodated in the mold cavity 30 so that the first portion 1301 and the second portion 1302 are integrally formed to form the workpiece 130 when the second portion 1302 of the workpiece 130 is injection molded.

In the injection mold of the embodiment of the present invention, the front mold 10 and the rear mold 20 form a mold cavity 30 into which the injection liquid flows, and the first part 1301 of the workpiece 130 can be partially accommodated in the mold cavity 30, so that the injection into the mold cavity 30 When the second part 1302 of the work piece 130 is injection molded, the first part 1301 and the second part 1302 are integrally formed to form the work piece 130. In this way, the assembly process of the first part 1301 and the second part 1302 is omitted. Therefore, compared with the prior art of separately manufacturing two parts of the workpiece 130 and then assembling the two, the injection mold according to the embodiment of the present invention can improve production efficiency and reduce production costs.

In one embodiment, as shown in FIGS. 2 and 3, the number of the mold cavity 30 is multiple. The number of the first part 1301 is plural. Each second portion 1302 is correspondingly accommodated in each mold cavity 30. In this way, multiple workpieces 130 can be injection molded at one time, which is beneficial to improve production efficiency and reduce production costs.

In one embodiment, as shown in FIGS. 2 and 4, at least one of the front mold 10 and the rear mold 20 is formed with a flow channel 40. The flow channel 40 communicates with the plurality of mold cavities 30 so that the injection fluid flows into the plurality of mold cavities 30 after flowing through the flow channel 40. In this embodiment, the flow channel 40 is provided on the front mold 10 and the rear mold 20.

In one embodiment, as shown in FIG. 6, the injection mold further includes a nozzle 140. The nozzle 140 is used to connect an injection molding machine that generates injection liquid. The nozzle 140 is installed on the front mold 10. The nozzle 140 extends into the flow channel 40 so that the injection liquid generated by the injection molding machine enters the flow channel 40 through the nozzle 140.

In one embodiment, as shown in FIGS. 4 and 6, the flow channel 40 includes a main channel 401 and a branch channel 402. The flow distribution channel 402 communicates with the main flow channel 401 and the plurality of mold cavities 30 so that the injection liquid in the main flow channel 401 flows through the flow distribution channel 402 and enters the plurality of mold cavities 30. The flow channel 402 can change the flow direction of the injection liquid, so that it can be smoothly and evenly distributed into each mold cavity 30. Preferably, the cross-sectional shape of the main flow channel 401 is conical, so as to facilitate the injection liquid to be separated from the main flow channel 401 after condensation and solidification. The cross-sectional shape of the shunt 402 is circular. This design not only has a simple structure and is easy to process, but also has a small resistance to the flow of injection liquid.

In one embodiment, as shown in FIG. 7 and FIG. 8, the shunt channel 402 includes a first shunt channel 4021 extending in the first direction. The first branch channel 4021 communicates with the main channel 401 and the plurality of mold cavities 30. The first branch channel 4021 is symmetrically distributed on both sides of the main channel 401, so that the injection liquid in the main channel 401 flows through the first branch channel 4021 and enters the plurality of mold cavities 30. Among them, the first direction is the X direction.

It can be understood that, since the first flow channel 4021 is symmetrically distributed on both sides of the main flow channel 401, the injection liquid in the main flow channel 401 is evenly distributed to the first flow channel 4021 before entering the multiple mold cavities 30, so The quality of the second part 1302 molding can be improved.

In one embodiment, as shown in FIG. 7 and FIG. 8, the shunt channel 402 further includes a second shunt channel 4022 extending in the second direction. The second flow channel 4022 communicates with the first flow channel 4021 and the plurality of mold cavities 30. The second flow channel 4022 is symmetrically distributed on both sides of the first flow channel 4021, so that the injection liquid in the first flow channel 4021 flows into the plurality of mold cavities 30 after passing through the second flow channel 4022. Among them, the second direction is the Y direction.

It is understandable that since the second flow channel 4022 is symmetrically distributed on both sides of the first flow channel 4021, the injection liquid in the second flow channel 4022 is evenly distributed to the second flow channel 4022 before entering multiple mold cavities Within 30. In this way, the uniformity of the flow of the injection liquid can be further improved, which is more conducive to ensuring the molding quality of the second part 1302.

In an embodiment, as shown in FIGS. 7 and 8, the second direction is perpendicular to the first direction, that is, the first branch channel 4021 and the second branch channel 4022 are perpendicular to each other. The compact structure of this arrangement is conducive to reducing the overall size of the injection mold.

In an embodiment, as shown in FIG. 8, a liquid outlet 40221 is formed on the second branching channel 4022. The liquid outlet 40221 communicates with the second branch channel 4022 and the plurality of mold cavities 30, so that the injection liquid in the second branch channel 4022 enters the plurality of mold cavities 30 through the liquid outlet 40221. In this way, the injection liquid that is evenly distributed into the second branching channel 4022 can enter the plurality of mold cavities 30 through the liquid outlet 40221, thereby improving the quality of injection molding.

In an embodiment, as shown in FIG. 8, the number of liquid outlets 40221 is multiple. The plurality of liquid outlets 40221 and the plurality of mold cavities 30 are provided in one-to-one correspondence. In this way, multiple second parts 1302 can be injection molded at one time, which is beneficial to improve production efficiency. Preferably, the plurality of liquid outlets 40221 are symmetrically distributed along the second direction, so that the injection liquid can simultaneously fill the plurality of mold cavities 30 through the plurality of liquid outlets 40221 to ensure the consistency of injection molding quality.

In an embodiment, as shown in FIG. 8, the cross-sectional area of the liquid outlet 40221 gradually decreases from the second branch channel 4022 to the mold cavity 30. It can be understood that, when the pressure in the second branch channel 4022 is small, the injection pressure in the mold cavity 30 can also be large. In this way, the filling degree of the injection liquid in the mold cavity 30 can be improved, thereby improving the yield of the second part 1302.

In one embodiment, as shown in FIGS. 3 to 5, the mold cavity 30 includes a first mold cavity 301 formed on the front mold 10 and a second mold cavity 302 formed on the rear mold 20. The injection mold also includes a jack 50 for carrying the workpiece 130. The jack 50 slides through the rear mold 20 and can extend into the second mold cavity 302. The jack 50 can drive the workpiece 130 to move in the third direction when the front mold 10 and the rear mold 20 are separated to disengage the workpiece 130 from the second mold cavity 302. The third direction is perpendicular to the first direction and the second direction. Among them, the third direction is the Z direction.

In one embodiment, as shown in FIGS. 4 and 5, the jack 50 includes a body 501 and a support portion 502 connected to the body 501. The main body 501 is inclined relative to the rear mold 20. The support portion 502 is used to carry the second part 1302. The body 501 can drive the support portion 502 to move in the first direction and the third direction at the same time, so that the support portion 502 drives the workpiece 130 out of the second mold cavity 302 and separates from the workpiece 130. It can be understood that when the body 501 drives the support portion 502 to move in the third direction, the support portion 502 drives the workpiece 130 out of the second mold cavity 302. At the same time, because the body 501 drives the support portion 502 to move in the first direction, the support portion 502 drives the workpiece 130 to separate from the workpiece 130 after being separated from the second mold cavity 302, so as to facilitate the removal of the workpiece 130.

In one embodiment, as shown in FIG. 6, the injection liquid in the flow channel 40 forms a nozzle 120 connected to the second part 1302. The injection mold also includes a thimble 60 for carrying the nozzle 120. The thimble 60 slides through the rear mold 20 and can extend into the flow channel 40. The ejector pin 60 can drive the nozzle 120 to move in the third direction when the front mold 10 and the rear mold 20 are separated, so that the nozzle 120 is separated from the flow channel 40.

In an embodiment, as shown in FIG. 6, the injection mold further includes a jacking plate 70. The jacking member 50 and the ejector pin 60 are mounted on the jacking plate 70. The jacking plate 70 can drive the jacking member 50 and the ejector pin 60 along Simultaneously move in the third direction, so that the jack 50 extends into the second mold cavity 302 and removes the workpiece 130 from the second mold cavity 302, and at the same time, the ejector pin 60 extends into the flow channel 40 and the nozzle 120 Remove from the flow channel 40. Therefore, the workpiece 130 can be removed from the second mold cavity 302 while the nozzle 120 is removed from the flow channel 40.

In an embodiment, as shown in FIG. 6, the injection mold further includes a jacking seat 80 disposed on the jacking plate 70, and the jacking member 50 is snapped into the jacking seat 80. In this way, the jack 50 can be quickly replaced, and the process of disassembling the jack 50 can be simplified.

In one embodiment, as shown in FIG. 4, the injection mold further includes a connecting plate 90 connected to the jacking plate 70, and the ejector pin 60 is limited between the jacking plate 70 and the connecting plate 90, thereby preventing the ejector pin 60 from coming off the jacking plate 70.

In an embodiment, as shown in FIG. 4, the side of the lifting plate 70 facing the connecting plate 90 is provided with a limiting hole 701, and the ejector pin 60 is limited to the limiting hole 701. In this way, when the ejector pin 60 drives the nozzle 120 to move in the third direction, the ejector pin 60 will not be separated from the jacking plate 70 due to the limiting effect of the limiting hole 701.

In an embodiment, as shown in FIG. 4, the limiting hole 701 includes a first hole segment 7011 and a second hole segment 7012 communicating with the first hole segment 7011. The diameter of the first hole segment 7011 is larger than that of the second hole segment 7012 The diameter of the first hole section 7011 and the second hole section 7012 form a step, the thimble 60 includes a large diameter portion 601 and a small diameter portion 602 connected to the large diameter portion 601, the small diameter portion 602 extends out of the second hole portion The small diameter portion 602 is used to carry the water outlet 120. One end of the large diameter portion 601 abuts the step, and the other end of the large diameter portion 601 abuts the connecting plate 90. It can be understood that one end of the large-diameter portion 601 abuts on the step, and the other end of the large-diameter portion 601 abuts on the connecting plate 90 so that the ejector pin 60 will not be separated from the lifting plate 70.

In one embodiment, as shown in FIG. 4, the injection mold further includes a guide post 100 provided on the lifting plate 70, and a guide hole (not shown in the figure) is provided on the rear mold 20. The guide post 100 and the guide hole Cooperate to guide the movement of the lifting plate 70.

In one embodiment, as shown in FIGS. 4 and 5, the injection mold further includes an elastic member 110 sleeved on the guide post 100. The elastic member 110 elastically abuts between the rear mold 20 and the lifting plate 70. It can be understood that, in the initial position, the elastic member 110 is in a free state. When the jacking plate 70 moves in the third direction, the elastic member 110 is in a compressed state. At this time, the elastic member 110 will give the jacking plate 70 a force opposite to the third direction, so that the jacking plate 70 drives the workpiece 130 to move more smoothly through the jacking member 50, thereby preventing the workpiece 130 from escaping from the second die The cavity 302 is deformed. Moreover, when the force exerted on the lifting plate 70 disappears, the lifting plate 70 can be moved to the initial position by the restoring force of the elastic member 110.

In one embodiment, the elastic member 110 is a spring. Of course, in other embodiments, the elastic member 110 may also be a spring or a torsion spring.

In one embodiment, as shown in FIG. 1, the injection mold further includes a front mold fixing plate 150 connected to the front mold 10. The front mold fixing plate 150 is used to install the front mold 10 on the injection molding machine.

In one embodiment, as shown in FIG. 1, the injection mold further includes a rear mold fixing base 160 connected to the rear mold 20. The rear mold fixing seat 160 is used to install the rear mold 20 on the injection molding machine.

In an embodiment, as shown in FIG. 2, the front mold 10 includes a front mold base 101 and a front mold core 102 disposed in the front mold base 101, and the rear mold 20 includes a rear mold base 201 and disposed in the rear mold base 201的后模芯 202.

In addition, an embodiment of the present invention also provides an injection molding method using the above injection mold, which includes the following steps:

S100. Place the first part 1301 of the workpiece 130 in the mold cavity 30.

Specifically, the front mold 10 and the rear mold 20 form a mold cavity 30. First, the front mold 10 and the rear mold 20 are separated. The first part 1301 of the workpiece 130 is then placed in the mold cavity 30.

S200. Inject an injection liquid into the mold cavity 30, so that the first part 1301 and the second part 1302 are integrally formed to form the workpiece 130 when the second part 1302 of the workpiece 130 is injection molded.

Specifically, first close the front mold 10 and the rear mold 20. Then, an injection liquid is injected into the mold cavity 30 to form the workpiece 130 by integrally molding the first portion 1301 and the second portion 1302 when the second portion 1302 of the workpiece 130 is injection molded. In this way, the assembly process of the first part 1301 and the second part 1302 can be omitted. Therefore, the injection molding method of the embodiments of the present invention can improve production efficiency and reduce production costs.

Further, the injection molding method further includes:

S300. The mold cavity 30 includes a first mold cavity 301 formed on the front mold 10 and a second mold cavity 302 formed on the rear mold 20. When the front mold 10 and the rear mold 20 are separated, the workpiece 130 is detached from the second mold cavity 302 .

Specifically, the front mold 10 and the rear mold 20 are separated first. Then, the lifting member 50 drives the workpiece 130 to move in the third direction to disengage the workpiece 130 from the second mold cavity 302.

Further, the injection molding method further includes:

S400. The injection liquid in the flow channel 40 forms a nozzle 120 connected to the second part 1302. When the front mold 10 and the rear mold 20 are separated, the nozzle 120 is separated from the flow channel 40.

Specifically, the front mold 10 and the rear mold 20 are separated first. Then, the spout 120 drives the spout 120 to move in the third direction to disengage the spout 120 from the flow channel 40.

The above disclosure is only preferred embodiments of the present invention, and of course it cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

An injection mold is characterized in that it includes a matched front mold and a rear mold. The front mold and the rear mold form a mold cavity into which injection fluid flows, and the first part of the workpiece can be partially accommodated in the mold cavity Inside, the first part and the second part are integrally formed to form the workpiece when the second part of the workpiece is injection molded.
The injection mold according to claim 1, wherein the number of the cavity is plural, the number of the first part is plural, each of the first part is correspondingly accommodated in each of the cavity Inside.
The injection mold according to claim 2, wherein at least one of the front mold and the rear mold is formed with a flow channel, and the flow channel communicates with a plurality of the mold cavities to make the injection liquid After flowing through the flow channel, it enters a plurality of the mold cavities.
The injection mold according to claim 3, wherein the injection mold further comprises a nozzle, the nozzle is used to connect an injection molding machine that generates the injection liquid, and the nozzle is mounted on the front mold , And extend into the flow channel, so that the injection liquid produced by the injection molding machine enters the flow channel through the nozzle.
The injection mold according to claim 3, wherein the flow channel includes a main flow channel and a flow distribution channel, the flow distribution channel communicates with the main flow channel and a plurality of the mold cavities, so that the The injection liquid flows into the plurality of mold cavities after flowing through the branch channel.
The injection mold according to claim 5, wherein the shunt channel includes a first shunt channel extending in a first direction, the first shunt channel communicates with the main channel and the plurality of mold cavities, In addition, the first flow path is symmetrically distributed on both sides of the main flow path, so that the injection liquid in the main flow path flows into the plurality of mold cavities after passing through the first flow path.
The injection mold according to claim 6, wherein the shunt channel further includes a second shunt channel extending in a second direction, and the second shunt channel communicates with the first shunt channel and a plurality of the A mold cavity, and the second flow path is symmetrically distributed on both sides of the first flow path, so that the injection liquid in the first flow path flows through the second flow path into a plurality of the In the mold cavity.
The injection mold according to claim 7, characterized in that a liquid outlet is formed on the second flow channel, and the liquid outlet is connected to the second flow channel and the plurality of mold cavities, so that The injection liquid in the second branch channel enters into the plurality of mold cavities through the liquid outlet.
The injection mold according to claim 8, wherein the number of the liquid outlets is multiple, and the multiple liquid outlets are provided in one-to-one correspondence with the multiple mold cavities.
The injection mold according to claim 9, wherein the cross-sectional area of the liquid outlet gradually decreases in a direction from the second branch channel to the mold cavity.
The injection mold according to claim 3, wherein the mold cavity includes a first mold cavity formed on the front mold and a second mold cavity formed on the rear mold, the injection mold further It includes a lifting member for carrying the work piece, the lifting member slides through the rear mold and can extend into the second mold cavity, the lifting member can be connected with the front mold When the rear mold is separated, the workpiece is driven to move in the third direction to separate the workpiece from the second mold cavity.
The injection mold according to claim 11, wherein the jacking member includes a body and a support portion connected to the body, the body is disposed obliquely with respect to the rear mold, and the support portion is used to carry the In the second part, the body can drive the support portion to move simultaneously in the first direction and the third direction, so that the support portion drives the workpiece away from the second mold cavity and contacts the workpiece Separate.
The injection mold according to claim 11, wherein the injection liquid in the flow channel forms a nozzle connected to the second part, and the injection mold further includes a thimble for carrying the nozzle. The thimble slides through the rear mold and can extend into the flow channel, the thimble can drive the nozzle to move in the third direction when the front mold is separated from the rear mold, so that The nozzle is separated from the flow channel.
The injection mold according to claim 13, wherein the injection mold further comprises a jacking plate, the jacking member and the thimble are mounted on the jacking plate, and the jacking plate can drive The jacking member and the thimble simultaneously move in the third direction to extend the jacking member into the second mold cavity and remove the workpiece from the second mold cavity, while In order to extend the thimble into the flow channel and remove the nozzle from the flow channel.
The injection mold according to claim 14, wherein the injection mold further comprises a connecting plate connected to the lifting plate, and the thimble is limited between the lifting plate and the connecting plate.
The injection mold according to claim 15, wherein a side of the jacking plate facing the connecting plate is provided with a limiting hole, and the thimble is limited to be located in the limiting hole.
The injection mold according to claim 16, wherein the limiting hole comprises a first hole segment and a second hole segment communicating with the first hole segment, the diameter of the first hole segment is greater than the A diameter of the second hole segment, a step is formed at the connection between the first hole segment and the second hole segment, the thimble includes a large diameter part and a small diameter part connected to the large diameter part, the small diameter part Extending from the second hole section and extending into the flow channel, the small-diameter portion is used to carry the spout, one end of the large-diameter portion is in contact with the step, the large-diameter portion The other end is in contact with the connecting plate.
The injection mold according to claim 14, wherein the injection mold further comprises a guide post provided on the lifting plate, a guide hole is provided on the rear mold, the guide post and the guide The holes cooperate to guide the movement of the jacking plate.
The injection mold according to claim 18, wherein the injection mold further comprises an elastic member sleeved on the guide post, the elastic member elastically abuts on the rear mold and the lifting plate between.
An injection molding method, characterized in that it includes the following steps:

Place the first part of the workpiece in the mold cavity; and

An injection liquid is injected into the mold cavity, so that when the second part of the workpiece is injection molded, the first part and the second part are integrally formed to form the workpiece.