CN215703675U - Secondary demolding mold - Google Patents

Abstract

The utility model discloses a secondary demolding mold, wherein a mold core of the secondary demolding mold is provided with an insert molding assembly, the insert molding assembly comprises a bottom plate, a seesaw, an ejection insert needle and an elastic piece, the bottom plate is arranged on the mold core, the ejection insert needle is slidably connected with the bottom plate and the mold core, the upper end of the ejection insert needle can be retractably and convexly extended into a molding cavity on the mold core, the seesaw is pivoted on the bottom plate, two ends of the seesaw are respectively abutted against ejector pins on the ejection insert needle and a female mold assembly, two ends of the elastic piece are respectively abutted against the bottom plate and the ejection insert needle, when the seesaw is pivoted under the action force of the ejector pins, the ejection insert needle is pushed to move and extend into the molding cavity, and when the seesaw loses the action force of the ejector pins, the ejection insert needle is reset under the action of the elastic piece and exits from the molding cavity. Through the setting of inlaying needle shaping subassembly, the shaping outward appearance hole in the lump when the shaping product to ejecting inlaying needle withdraws from the product earlier when the drawing of patterns, guarantees that the outward appearance hole site of product does not have the pulling, draws the swelling problem, reduces the required structure of beating plate of the ejection drawing of patterns of conventional secondary simultaneously, reduces mould cost.

Description

Secondary demolding mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a secondary demolding mold which is suitable for molding products with holes and does not damage the appearance surfaces of the products during demolding.

Background

After the product is molded by the mold, due to the special shape or the requirement in mass production, if the product still stays in the mold cavity after one-time ejection and can not automatically fall off, one-time ejection action needs to be added, and the multi-stage ejection action design is called secondary ejection. The secondary ejection design can enable the ejection action of the die to be smooth, and for products with larger ejection strokes, the acting force exerted on the products by the ejector pins during ejection can be reduced by utilizing the secondary ejection, so that the defects of the products during ejection are avoided.

However, for some products with special structures and high requirements, the appearance of the product is still damaged by adopting the existing secondary ejection, for example, a tws (true wire stereo) earphone has a high-gloss industrial appearance surface, high requirements on appearance and a plurality of appearance holes, and if the product is processed by adopting a computer numerical control precision machine (CNC), the cost is increased, so that the appearance effect of the earphone can be well protected and the processing cost cannot be increased by adopting a secondary ejection die for processing.

However, the existing mold for producing the TWS earphones needs a jump plate structure when secondary ejection is carried out, so that the mold cost is increased, and on the other hand, appearance holes of the earphones are easily dragged or swollen in the demolding process, so that the yield of the TWS earphones is low.

Therefore, it is necessary to provide a mold with simple structure and low cost, which can ensure the appearance hole of the product without the problems of scratch and swelling, so as to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a secondary demolding mold which is simple in structure, low in mold cost and capable of ensuring that appearance holes of products are free of the problems of dragging and swelling.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the secondary demolding mold comprises a male mold component, a female mold component, a mold core arranged on the male mold component and an insert pin forming component arranged on the mold core, wherein the upper end of the mold core is provided with a forming cavity, the female mold component is also provided with an ejector pin protruding out of the lower end of the female mold component, the insert pin forming component comprises a bottom plate, a teeterboard, an ejection insert pin and an elastic component, the bottom plate is arranged at the lower end of the mold core, the ejection insert pin is connected with the bottom plate and the mold core in a sliding manner, one end of the ejection insert pin protrudes out of the forming cavity in a withdrawing manner, the teeterboard is pivoted on the bottom plate, two ends of the teeterboard are respectively abutted against the ejection insert pin and the ejector pin, two ends of the elastic component are respectively abutted against the bottom plate and the ejection insert pin, and when the teeterboard is pivoted under the action force of the ejector pin, and pushing the ejection insert pin to move to overcome the elastic force of the elastic piece and extend into the forming cavity, and when the seesaw loses the acting force of the ejector pin, the ejection insert pin reversely moves under the action of the elastic force of the elastic piece and exits from the forming cavity.

Preferably, when the female die assembly and the male die assembly are assembled, the seesaw is under the action of the ejector pins to push the ejection insert pins to extend into the molding cavity, and when the female die assembly is separated from the male die assembly, the seesaw loses the action of the ejector pins to enable the ejection insert pins to exit from the molding cavity.

Preferably, the ejector pin is slidably connected to the mold insert along a first direction, the ejector insert pin is slidably connected to the base plate and the mold insert along a second direction, an included angle is formed between the first direction and the second direction, and the elastic member makes the ejector insert pin always have a tendency of exiting the molding cavity.

Preferably, the seesaw comprises a first end and a second end which are arranged at an included angle, the first end is abutted with the ejector pin, and the second end is abutted with the ejection insert pin.

Preferably, the insert molding assembly further comprises an insert sleeve, one end of the ejection insert is fixed to the insert sleeve, one end of the ejection insert, which is far away from the insert sleeve, protrudes into the molding cavity in an exiting manner, the insert sleeve is abutted against the seesaw, and one end of the elastic piece is abutted against the insert sleeve.

Preferably, a first mounting hole which is inclined is formed in the bottom plate, a first abutting portion is convexly arranged on the inner wall of the first mounting hole, a second abutting portion is convexly arranged on the outer wall of the needle inserting sleeve, and two ends of the elastic piece are respectively abutted against the first abutting portion and the second abutting portion.

Preferably, a first mounting groove is formed in the base plate, the first mounting groove penetrates through one end of the base plate and is communicated with the first mounting hole, the seesaw is pivoted in the first mounting groove, one end of the seesaw protrudes out of the base plate, and the ejector pin abuts against one end of the seesaw, which protrudes out of the base plate.

Preferably, the lower end of the mold insert is provided with a second mounting groove corresponding to the shape of the bottom plate, the mold insert is further provided with a second mounting hole which is inclined and communicated with the second mounting groove and the molding cavity, and the bottom plate is accommodated in the second mounting groove so that the second mounting hole is communicated with the first mounting hole.

Preferably, the mold insert is provided with a sliding hole, the sliding hole extends along a direction perpendicular to the first direction, and the thimble penetrates through the sliding hole and abuts against the seesaw.

Preferably, the secondary demolding mold of the utility model has two mold cores, both of which are slidably connected to the male mold assembly, the two mold cores can be closed by sliding relative to each other or opened by sliding in opposite directions, and each mold core is provided with at least one insert pin molding assembly.

Compared with the prior art, the secondary demoulding mould is provided with the insert molding assembly on the mould core, the insert molding assembly comprises a bottom plate, a seesaw, an ejection insert needle and an elastic piece, the bottom plate is arranged at the lower end of the mould core, the ejection insert needle is connected with the bottom plate and the mould core in a sliding way, one end of the ejection insert needle can be extended into the molding cavity in an exiting way, the seesaw is pivoted on the bottom plate, two ends of the seesaw are respectively abutted against the ejection insert needle and the ejector pin, and two ends of the elastic piece are respectively abutted against the bottom plate and the ejection insert needle, so when the female mould assembly and the male mould assembly are closed up and down, the seesaw is pivoted under the pushing of the ejector pin, the ejection insert needle is pushed to move upwards to extend into the molding cavity by overcoming the elastic force of the elastic piece, an appearance hole can be formed on a product, when the female mould assembly is separated from the male mould assembly, the acting force of the ejector pin is lost, the ejection insert pin resets under the action of the elastic force of the elastic piece to exit the forming cavity and the product, the hole site structure of the product is preferentially ensured to retreat, and then the mold core is opened to take out the product. Firstly, take out the product through the secondary drawing of patterns mode, guarantee from this that the outward appearance hole site of product does not have the pulling injury, draws the swelling problem, makes the outward appearance of product accord with user's demand, secondly, reduced the required jump plate structure of the ejecting drawing of patterns of conventional mould secondary, and then reduced the mould cost, moreover, this secondary drawing of patterns mould's simple structure further reduces the mould cost, still makes the secondary drawing of patterns mode simplify.

Drawings

FIG. 1 is a schematic structural view of a secondary release mold of the present invention.

Fig. 2 is a sectional view of fig. 1.

FIG. 3 is a schematic view of the master mold assembly of FIG. 2 after it has been moved up.

FIG. 4 is a schematic view of the female mold assembly of FIG. 1 with the female mold assembly removed.

Fig. 5 is an exploded view of fig. 4.

FIG. 6 is a schematic view of a mold insert and a pin insert molding assembly of FIG. 5.

Fig. 7 is a bottom view of fig. 6.

Fig. 8 is an exploded view of fig. 6.

Fig. 9 is a cross-sectional view of fig. 6.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements. It should be noted that the orientation descriptions of the present invention, such as the directions or positional relationships indicated above, below, left, right, front, rear, etc., are all based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the technical solutions of the present application or simplifying the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present application. The description of first, second, etc. merely serves to distinguish technical features and should not be interpreted as indicating or implying a relative importance or implying a number of indicated technical features or implying a precedence relationship between indicated technical features.

The secondary demolding mold 1 provided by the utility model is particularly suitable for molding TWS earphones as shown in fig. 1-9, but not limited thereto, and can be used for molding other similar products.

Referring to fig. 1-4, the secondary demolding mold 1 of the present invention includes a female mold member 100, a male mold member 200, a mold insert 300, and a molding insert 400. The female die assembly 100 and the male die assembly 200 are arranged in a vertically matched manner, the female die assembly 100 is arranged above the male die assembly 200, the female die assembly 100 is provided with an ejector pin 110, and the lower end of the ejector pin 110 protrudes out of the lower part of the female die assembly 100; the mold core 300 is disposed on the male mold assembly 200, the upper end of the mold core 300 has a molding cavity 310, as shown in fig. 4, the thimble 110 is slidably connected to the mold core 300, and at least one insert molding assembly 400 is disposed on the mold core 300, the number of the insert molding assemblies 400 is specifically set as required, the ejector insert pins 430 (described in detail later) of the insert molding assembly 400 can protrude into the molding cavity 310 to form an outward hole on the product 2 during molding, and during demolding, the ejector insert pins 430 of the insert molding assembly 400 are withdrawn from the molding cavity 310 and the product 2, and then the mold core 300 is opened to take out the product 2. According to the utility model, through the arrangement of the insert pin forming assembly 400, on one hand, an appearance hole can be directly formed on the product 2 during forming, and on the other hand, the product 2 is subjected to secondary demoulding during demoulding, so that the problems of dragging and swelling of the appearance hole position of the product 2 are avoided, and the appearance of the product 2 meets the requirements of users.

Referring to fig. 1 to 5, the secondary demolding mold 1 of the present invention includes two mold cores 300, the two mold cores 300 are symmetrically disposed on the male mold assembly 200, and the two mold cores 300 are slidably connected to the male mold assembly 200 along a horizontal direction, respectively, the two mold cores 300 can be relatively slid to close or be slid to open in opposite directions, as shown in fig. 4 to 5, the mold core 300 on the left side in fig. 5 has a first forming groove 310a, and the mold core 300 on the right side in fig. 5 has a second forming groove 310b, when the two mold cores 300 are relatively slid to close, the first forming groove 310a and the second forming groove 310b are closed to form the forming cavity 310, as shown in fig. 4. The other two mold cores 300 are provided with other molding assemblies 350, as shown in fig. 4-5, the molding assemblies 350 are specifically arranged according to the product requirements, and the structure and arrangement thereof are conventional in the art and will not be described in detail. Of course, the mold 300 is not limited thereto.

Referring to fig. 2-3 and 5-9, in the present invention, each mold core 300 is provided with at least one insert molding assembly 400, and the specific number is set according to the requirement of the product 2. In one embodiment of the present invention, one insert molding assembly 400 is disposed on each mold core 300, and the insert molding assemblies 400 on the two mold cores 300 are symmetrically disposed, as shown in fig. 2-3.

As will be described with continued reference to fig. 2-3 and 5-9, the insert molding assembly 400 includes a base plate 410, a seesaw 420, an ejector insert 430, an insert sleeve 440, and a resilient member 450. Wherein, the bottom plate 410 is installed at the lower end of the mold core 300, the ejecting insert 430 is fixed to the insert sleeve 440, and the upper end thereof protrudes out of the insert sleeve 440, the ejecting insert 430 and the insert sleeve 440 are slidably connected to the bottom plate 410 and the mold core 300, and the upper end of the ejecting insert 430 is retractably protruded into the molding cavity 310; the seesaw 420 is pivotally connected to the base plate 410, two ends of the seesaw 420 are respectively abutted against the insert sleeve 440 and the thimble 110, two ends of the elastic member 450 are respectively abutted against the base plate 410 and the insert sleeve 440, and the elastic member 450 makes the ejection insert 430 have a tendency to withdraw from the molding cavity 310 all the time. When the female mold assembly 100 and the male mold assembly 200 are closed, the seesaw 420 is pivoted by the force of the ejector pin 110, so as to push the insert sleeve 440 and the ejector insert pin 430 to extend into the molding cavity 310 against the elastic force of the elastic member 450, as shown in fig. 2; when the female mold assembly 100 is separated from the male mold assembly 200, the seesaw 420 loses the force of the ejector pin 110, and the elastic force of the elastic member 450 restoring the deformation pushes the ejector pin 430 to move reversely to exit the molding cavity 310, in the process, the ejector pin 430 pushes the seesaw 420 to pivot reversely.

Referring to fig. 1 to 4, in the present invention, the ejector pin 110 is slidably connected to the mold core 300 along a first direction, and the ejector insert pin 430 is slidably connected to the base plate 410 and the mold core 300 along a second direction, and the first direction and the second direction form an included angle. More specifically, the first direction is a vertical direction (a height direction of the secondary knock out die 1), and the second direction is inclined with respect to the vertical direction, that is, the insert pin holder 440 and the eject insert pin 430 are connected to the base plate 410 in an inclined manner.

With reference to fig. 2-3 and 8-9, the seesaw 420 includes a first end 421 and a second end 422, the first end 421 and the second end 422 are disposed at an included angle, the seesaw 420 is pivotally connected to the base through a rotating shaft 423, an axial direction of the rotating shaft 423 is perpendicular to the first direction, the first end 421 abuts against the thimble 110, and the second end 422 abuts against the thimble inserting sleeve 440.

With continued reference to fig. 2-3 and 8-9, the bottom plate 410 is provided with a first inclined mounting hole 411, the first mounting hole 411 penetrates through the top surface of the bottom plate 410, in addition, the bottom of the bottom plate 410 is further provided with a first mounting groove 413, the first mounting groove 413 penetrates through one end of the bottom plate 410 and is communicated with the first mounting hole 411, the ejection insert pin 430 and the insert pin sleeve 440 are movably mounted in the first mounting hole 411, the seesaw 420 is pivotally connected in the first mounting groove 413, the first end 421 of the seesaw 420 protrudes out of the bottom plate 410 and abuts against the thimble 110, and the second end 422 of the seesaw 420 abuts against the insert pin sleeve 440. When the female mold assembly 100 moves downward to drive the ejector pin 110 to move downward, the ejector pin 110 pushes the first end 421 of the seesaw 420 to pivot, so that the second end 422 of the seesaw 420 swings to push the insert sleeve 440 and the ejector insert pin 430 move against the elastic force of the elastic member 450, so that the upper end of the ejector insert pin 430 protrudes into the molding cavity 310, and at the moment, the elastic member 450 is in a compressed state, as shown in fig. 2; when the master mold assembly 100 moves upward to drive the thimble 110 to move upward, the first end 421 of the seesaw 420 loses the force, and at this time, the elastic member 450 recovers its shape to push the insert sheath 440 and the eject insert 430 to move in the opposite direction, so that the upper end of the eject insert 430 exits the molding cavity 310, as shown in FIG. 3.

Referring to fig. 9, a first interference portion 412 is protruded on an inner wall of the first mounting hole 411, a second interference portion 441 is protruded on an outer wall of the insert sleeve 440, and the elastic member 450 is sleeved outside the insert sleeve 440, and two ends of the elastic member are respectively abutted against the first interference portion 412 and the second interference portion 441.

Referring to fig. 7-9, the lower end of the mold core 300 is provided with a second mounting groove 320 corresponding to the shape of the bottom plate 410, and the mold core 300 is further provided with a second mounting hole 330 which is inclined, wherein the second mounting hole 330 is respectively communicated with the molding cavity 310 and the second mounting groove 320. The bottom plate 410 is received in the second mounting groove 320 and fixed to the mold core 300 such that the second mounting hole 330 is communicated with the first mounting hole 411, and the upper end of the insert pin 430 protrudes into the molding cavity 310 through the second mounting hole 330.

Referring to fig. 1 to 6, in the present invention, the mold core 300 is provided with a sliding hole 340, and the sliding hole 340 extends along a direction perpendicular to the first direction, that is, the sliding hole 340 extends horizontally and transversely, as shown in fig. 4 to 5; the thimble 110 is disposed in the sliding hole 340 and abuts against the first end 421 of the seesaw 420. In the secondary demolding mold 1 of the present invention, since the two mold cores 300 are disposed on the thimble 110 through the sliding holes 340 thereon, as shown in fig. 2-4, during the sliding process, the two mold cores 300 slide oppositely or in opposite directions along the thimble 110.

The operation principle and process of the secondary release mold 1 of the present invention will be described with reference to fig. 1 to 9 again.

When a product is molded, the two mold cores 300 slide and close in opposite directions, and the first molding groove 310a and the second molding groove 310b on the top surfaces of the two mold cores 300 close to form the molding cavity 310, as shown in fig. 4; then the female mold assembly 100 and the male mold assembly 200 move up and down relatively to close, in the process, the thimble 110 pushes the first end 421 of the seesaw 420 to pivot, so that the second end 422 of the seesaw 420 swings to push the insert sleeve 440 and the ejecting insert pin 430 to move obliquely upward against the elastic force of the elastic member 450, when the female mold assembly 100 and the male mold assembly 200 are closed up and down, the upper end of the ejecting insert pin 430 protrudes into the molding cavity 310, and at the moment, the elastic member 450 is in a compressed state, as shown in fig. 2. The female mold member 100 and the male mold member 200 mold the product 2 through the molding cavity 310, and since the upper end of the ejector insert 430 is located in the molding cavity 310, an appearance hole can be formed in the product 2.

When demolding, the female mold assembly 100 moves upward relative to the male mold assembly 200 to drive the thimble 110 to move upward, as shown in fig. 3, the first end 421 of the seesaw 420 loses the acting force of the thimble 110, and at this time, the elastic member 450 recovers to deform to push the insert sheath 440, so that the insert sheath 440 and the ejection insert 430 move obliquely downward to reset, and finally the upper end of the ejection insert 430 exits from the molding cavity 310 and is separated from the product 2, thereby preferentially ensuring that the hole site of the product 2 moves backward first. During the resetting of the insert sleeve 440, the insert sleeve 440 pushes the second end 422 of the seesaw 420 to pivot in the opposite direction, so that the seesaw 420 is rotationally reset.

After the upper ends of the ejector pins 430 exit the molding cavity 310 and the product 2, the two mold cores 300 are driven to slide in opposite directions to open, specifically referring to fig. 4, the two mold cores 300 are respectively opened by sliding in the left-right direction of fig. 4, so that the other molding assemblies 350 on the two mold cores 300 are separated from the product 2, and the product 2 is ejected through the ejector pins arranged on the male mold assembly 200 to realize the demolding of the product 2.

In summary, in the secondary demolding mold 1 of the present invention, the insert molding assembly 400 is disposed on the mold core 300, the insert molding assembly 400 includes a bottom plate 410, a seesaw 420, an ejecting insert 430 and an elastic member 450, the bottom plate 410 is disposed at the lower end of the mold core 300, the ejecting insert 430 is slidably connected to the bottom plate 410 and the mold core 300, the upper end of the ejecting insert 430 is retractably protruded into the molding cavity 310, the seesaw 420 is pivotally connected to the bottom plate 410, two ends of the seesaw are respectively abutted against the ejecting insert 430 and the ejector pin 110, and two ends of the elastic member 450 are respectively abutted against the bottom plate 410 and the ejecting insert 430. Therefore, when the female mold assembly 100 and the male mold assembly 200 are closed, the seesaw 420 is pushed by the ejector pin 110 to pivot, so as to push the ejector insert 430 to extend into the molding cavity 310 against the elastic force of the elastic member 450, an appearance hole can be formed on the product 2 when the product 2 is molded, when the female mold assembly 100 is separated from the male mold assembly 200, the seesaw 420 loses the acting force of the ejector pin 110, the ejector insert 430 is reset under the elastic force of the elastic member 450 to exit the molding cavity 310 and the product 2, the hole site structure of the product 2 is preferentially ensured to retreat first, and then the two mold cores 300 are opened to take out the product 2. Firstly, take out product 2 through the secondary drawing of patterns mode, guarantee from this that the outward appearance hole site of product 2 does not have the pulling injury, draws the swelling problem, makes the outward appearance of product 2 accord with user's demand, secondly, reduced the required jump plate structure of conventional mould secondary ejection drawing of patterns, and then reduced the mould cost, moreover, this secondary drawing of patterns mould 1's simple structure, further reduction mould cost still makes the secondary drawing of patterns mode simplify.

The structure of the other parts of the secondary release mold 1 according to the present invention is a conventional structure well known to those skilled in the art, and will not be described in detail herein.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims (10)

1. A secondary demoulding mould comprises a male mould component, a female mould component and a mould core arranged on the male mould component, wherein the male mould component and the female mould component are matched with each other, and the upper end of the mould core is provided with a forming cavity;

the insert pin forming assembly comprises a bottom plate, a seesaw, an ejection insert pin and an elastic piece, wherein the bottom plate is installed at the lower end of the mold core, the ejection insert pin is connected with the bottom plate and the mold core in a sliding mode, one end of the ejection insert pin protrudes into the forming cavity in an ejection mode, the seesaw is pivoted to the bottom plate, two ends of the seesaw are respectively abutted to the ejection insert pin and the ejector pin, two ends of the elastic piece are respectively abutted to the bottom plate and the ejection insert pin, the seesaw is pushed to move to overcome the elastic force of the elastic piece and extend into the forming cavity when being pivoted under the action force of the ejector pin, and when the seesaw loses the action force of the ejector pin, the ejection insert pin reversely moves under the action force of the elastic piece and exits from the forming cavity.

2. The secondary demolding mold as claimed in claim 1, wherein when the female mold component and the male mold component are closed, the seesaw is pushed by the action force of the ejector pins to extend into the molding cavity, and when the female mold component is separated from the male mold component, the seesaw loses the action force of the ejector pins to enable the ejector pins to exit from the molding cavity.

3. The secondary demolding mold according to claim 1 or 2, wherein the ejector pin is slidably connected to the mold core in a first direction, the ejector insert pin is slidably connected to the base plate and the mold core in a second direction, an included angle is formed between the first direction and the second direction, and the elastic member enables the ejector insert pin to have a tendency to withdraw from the molding cavity all the time.

4. The secondary ejection die of claim 3, wherein the teeterboard includes a first end and a second end arranged at an included angle, the first end abutting the ejector pin, the second end abutting the ejector insert pin.

5. The secondary demolding mold as claimed in claim 1 or 2, wherein the insert molding assembly further comprises an insert sleeve, one end of the ejection insert is fixed to the insert sleeve, one end of the ejection insert, which is far away from the insert sleeve, protrudes into the molding cavity in a withdrawing manner, the insert sleeve abuts against the seesaw, and one end of the elastic member abuts against the insert sleeve.

6. The secondary demolding mold as claimed in claim 5, wherein the bottom plate is provided with a first inclined mounting hole, the inner wall of the first mounting hole is provided with a first abutting portion in a protruding manner, the outer wall of the sleeve insert is provided with a second abutting portion in a protruding manner, and two ends of the elastic member abut against the first abutting portion and the second abutting portion respectively.

7. The secondary demolding mold as claimed in claim 6, wherein the bottom plate is provided with a first mounting groove, the first mounting groove penetrates through one end of the bottom plate and is communicated with the first mounting hole, the seesaw is pivoted in the first mounting groove, one end of the seesaw protrudes out of the bottom plate, and the ejector pin abuts against one end of the seesaw protruding out of the bottom plate.

8. The secondary demolding mold as claimed in claim 6, wherein the lower end of the mold core is provided with a second mounting groove corresponding to the shape of the bottom plate, the mold core is further provided with a second mounting hole which is inclined and communicated with the second mounting groove and the molding cavity, and the bottom plate is accommodated in the second mounting groove so that the second mounting hole is communicated with the first mounting hole.

9. The secondary demolding mold as claimed in claim 3, wherein the mold core is provided with a sliding hole, the sliding hole extends in a direction perpendicular to the first direction, and the ejector pin penetrates through the sliding hole and abuts against the seesaw.

10. The secondary demolding mold according to claim 1 or 2, wherein there are two mold inserts, both of which are slidably connected to the male mold component, the two mold inserts can be closed by sliding relative to each other or opened by sliding in opposite directions, and each of the mold inserts is provided with at least one insert molding component.

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