CN110722721A

CN110722721A - Mould convenient for rapid demoulding for manual pliers processing

Info

Publication number: CN110722721A
Application number: CN201911040684.7A
Authority: CN
Inventors: 邓玲凤; 陈马鑫
Original assignee: Dongguan Kailedi Numerical Control Science and Technology Co Ltd
Current assignee: Dongguan Kailedi Numerical Control Science and Technology Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-01-24

Abstract

The invention discloses a mould convenient for rapid demoulding for manual pliers processing, which relates to the technical field of moulds for manual pliers processing, and specifically comprises an upper mould body, a lower mould body, an upper pressing plate and a lower pressing plate, wherein an upper mould cavity is arranged in the upper mould body, the lower mould body is arranged below the upper mould body, the upper pressing plate is connected above the upper mould body, the lower pressing plate is arranged below the lower mould body, the mould convenient for rapid demoulding for manual pliers processing is provided with a plurality of air ports for providing an external air source for a mould material in the mould cavity, thereby being beneficial to rapid heat dissipation and forming of the mould material, and an air pressure mould pushing structure and an air movable rod mould ejecting structure are arranged on the mould, the two mould pushing structures can synchronously start to work and supplement each other, so that a rapid demoulding process can be completed, and finally, an upper pouring gate and a lower pouring gate are arranged on the mould, thereby greatly shortening the injection moulding time, and accordingly, the uniformity of injection molding is improved, and the generation of bubbles is reduced.

Description

Mould convenient for rapid demoulding for manual pliers processing

Technical Field

The invention relates to the technical field of dies for machining manual pliers, in particular to a die convenient for rapid demoulding for machining the manual pliers.

Background

The manual pliers, namely the pliers, is a manual tool for clamping, fixing and processing a workpiece or twisting, bending and cutting a metal wire, the pliers are V-shaped and generally comprise a handle, a pliers cheek and a pliers mouth, a mold is required to be used in the production process of the pliers, the mold is adopted for quantitative production of the pliers, and the production efficiency of the pliers can be improved.

The mould for the production of current pliers compares ordinary mould and does not have obvious difference, and the mould specification of generally choosing for use is a mould many, chooses for use the mould of this kind of specification, can produce a plurality of pliers semi-manufactured goods simultaneously, and production efficiency is higher.

However, the existing mold structure is not beneficial to rapid demolding, the first factor meeting the significance of demolding is the temperature, namely, the temperature is cooled, the workpiece in the mold is driven to be molded, but the existing mold has general heat dissipation efficiency, the ejection mechanism of the mold is less, and in addition, when molten materials are injected into a mold cavity, only one injection gate is arranged, so that the materials are injected slowly and are not uniform enough, and bubbles are easily formed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a die for processing manual pliers, which is convenient for quick demoulding, and solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a die convenient for rapid demoulding for manual pliers processing comprises an upper die body, a lower die body, an upper pressing plate and a lower pressing plate, wherein an upper die cavity is arranged inside the upper die body, a blowing port penetrates through the upper cavity wall of the upper die cavity at equal intervals, the lower die body is arranged below the upper die body, a lower die cavity is arranged inside the lower die body, a locking screw rod penetrates through the upper die body and the lower die body, a sealing ring is arranged between the upper die body and the lower die body, a blocking net layer is arranged at the position, close to the upper die cavity, in the wall of the upper die body and the position, close to the lower die cavity, in the wall of the lower die body, a blocking net layer is arranged, air ducts penetrate through the inner side walls of the upper die body and the lower die body, the upper pressing plate is connected above the upper die body, an inner cavity is arranged inside the upper pressing plate, a chute is formed in the cavity wall of the inner cavity, a pressing plate is in sliding, the lower pressing plate is installed below the lower die body, a gas rod seat is fixed inside the lower pressing plate, a pneumatic telescopic rod is installed on the gas rod seat, the pneumatic telescopic rod penetrates through the lower pressing plate and the lower die body, and an injection pouring mechanism vertically penetrates through the middles of the upper pressing plate and the lower pressing plate.

Optionally, the air duct is arranged in an inclined manner in relation to the vertical direction of the upper mold body and the lower mold body, the inclination angle of the air duct is 30 degrees, the air duct is uniformly arranged in a dot matrix manner on the upper mold body and the lower mold body along the vertical direction, the air duct penetrates through the blocking net layer, and the diameter of the circular opening of the inner air port is smaller than that of the circular opening of the outer air port.

Optionally, the middle section of tuber pipe is provided with folding pipe, and the bottom mounting of tuber pipe has the wide-mouth to the upper end screwed connection of tuber pipe has the loose joint.

Optionally, the wide mouth and the mouthpiece are in one-to-one correspondence, and the mouthpiece is in a conical hole structure with a wide top and a narrow bottom.

Optionally, the inside equidistance of inner chamber is provided with gas cap elastic mechanism, and gas cap elastic mechanism's one end is fixed on the top board to gas cap elastic mechanism's the other end welds on the pressure disk.

Optionally, gas cap elastic mechanism includes gas cap seat, rubber circle, activity post and spring, the inside of gas cap seat is hollow structure, and the inboard mouth edge embedding of gas cap seat has the rubber circle, the inside of gas cap seat is stretched into from the rubber circle to the activity post, and the outer wall cover of activity post is equipped with the spring, the one end of spring is fixed on the gas cap seat, and the other end of spring is fixed on the activity post.

Optionally, the mechanism is watered in notes includes a card section of thick bamboo, inserts a section of thick bamboo, pipe, tube head and notes runner, the last port inner wall of a card section of thick bamboo is fixed with inserts a section of thick bamboo, and the vertical penetration in inside of a card section of thick bamboo has the pipe, the bottom mounting of pipe has the tube head, and the below of tube head is provided with notes runner, it is key cooperation connection to block between a section of thick bamboo and top board and the holding down plate.

Optionally, a matching pipe groove is formed in the inner wall of the upper port of the guide pipe, the insertion cylinder is inserted into the matching pipe groove in a matched mode, and an inner thread ring is formed in the inner wall of the lower port of the clamping cylinder.

Optionally, an external thread ring is arranged on the upper portion of the outer wall of the tube head, and the external thread ring and the internal thread ring are matched with each other in size.

Optionally, the pneumatic telescopic rods are uniformly arranged in an annular shape about the vertical central line of the lower pressing plate, and the pneumatic telescopic rods are parallel to each other.

The invention provides a mold convenient for rapid demolding for manual pliers processing, which has the following beneficial effects:

1. this manual pliers processing is with mould of being convenient for fast demoulding, through set up a plurality of wind gaps on the mould, mould material to the mould intracavity provides outside wind regime, help quick heat dissipation and the shaping of mould material, and be provided with atmospheric pressure push mold structure and pneumatic rod ejector die structure on this mould, these two kinds of push mold structures can start work in step, complement each other, the event can accomplish fast demoulding process, and finally, two injection gates about being provided with on this mould, reduction injection molding time that can be very big, and the corresponding degree of consistency that improves the injection molding, reduce the formation of bubble.

2. This manual pliers processing is with mould of being convenient for fast demoulding, slope through the wind channel sets up, when being favorable to the ventilation, can avoid the inside material of die cavity to spill over in a large number again, it can intercept the material that spills over from the wind channel to block the stratum reticulare, in addition, the outside wind that blows out of wide-mouth gets into the die cavity through the mouthpiece, when the moulding, can play the refrigerated effect of heat dissipation, when the drawing of patterns, through providing the wind pressure to the shaping work piece, help pushing out the shaping work piece, the mouthpiece of taper can avoid the material to spill over the mould by the mouthpiece.

3. This manual pliers processing is with mould convenient to fast drawing of patterns, ejecting pressure disk through gas cap elastic mechanism, rotate the top board, the pressure disk is rotatory immediately, utilizes the pressure disk and goes up the mould body between the frictional force that the contact produced, can grind the mould material that overflows by the mouthpiece outskirt to guarantee the clean and tidy degree of mould, the cleanness and the maintenance of the mould of being convenient for.

4. This manual pliers processing is with mould of being convenient for fast demoulding carries out the injection molding work to the die cavity through pouring the mechanism, and it pours the mechanism to pour into to annotate about establishing separately, like this when annotating the material in to the die cavity, can adopt the mode of annotating the material from top to bottom simultaneously to come the material of annotating simultaneously, such notes material mode has reduced notes material time on the one hand greatly, and on the other hand then helps improving the degree of consistency of annotating the material, and pours the mechanism of pouring and can split, then can accomplish the rotation to the top board.

5. This manual pliers processing is with mould convenient to fast demoulding, through pneumatic telescopic link's setting, with the help of pneumatic principle, pneumatic telescopic link can upwards ejecting the shaping work piece in the die body down, and the pneumatic telescopic link of even setting helps ejecting work piece in the equilibrium, makes the purpose that reaches the fast demoulding.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the present invention;

FIG. 2 is a schematic view of the overall external structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the upper mold body according to the present invention;

FIG. 4 is a schematic view of a partial structure of the interior of the lower mold body according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 6 is a schematic view of a partial structure of the interior of the upper platen according to the present invention;

FIG. 7 is a schematic structural view of a gas cap elastic mechanism according to the present invention;

FIG. 8 is a schematic structural view of the casting mechanism of the present invention.

In the figure: 1. feeding a mold body; 2. an upper mold cavity; 3. a mouthpiece; 4. a lower die body; 5. a lower die cavity; 6. locking the screw rod; 7. a net blocking layer; 8. an air duct; 9. an inner tuyere; 10. an outer tuyere; 11. an upper pressure plate; 12. an inner cavity; 13. a chute; 14. a platen; 15. an air duct; 1501. folding the tube; 1502. wide mouth; 1503. loose joint; 16. a gas cap elastic mechanism; 1601. an air top seat; 1602. a rubber ring; 1603. a movable post; 1604. a spring; 17. a pouring mechanism; 1701. clamping the cylinder; 1702. inserting a cylinder; 1703. an internal thread ring; 1704. a conduit; 1705. fitting the pipe groove; 1706. a pipe head; 1707. an external thread ring; 1708. pouring a gate; 18. a seal ring; 19. a lower pressing plate; 20. a gas rod seat; 21. pneumatic telescopic link.

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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus are not to be construed as limiting the present invention, and furthermore, the terms "first", "second", "third", and the like are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

Referring to fig. 1 to 8, the present invention provides a technical solution: a mould convenient for rapid demoulding for manual pliers processing comprises an upper mould body 1, a lower mould body 4, an upper pressing plate 11 and a lower pressing plate 19, wherein an upper mould cavity 2 is arranged inside the upper mould body 1, a blowing opening 3 penetrates through the upper cavity wall of the upper mould cavity 2 at equal intervals, the lower mould body 4 is arranged below the upper mould body 1, a lower mould cavity 5 is arranged inside the lower mould body 4, a locking screw 6 is connected between the upper mould body 1 and the lower mould body 4 in a penetrating manner, a sealing ring 18 is arranged between the upper mould body 1 and the lower mould body 4, a blocking net layer 7 is arranged at the position close to the upper mould cavity 2 in the wall of the upper mould body 1 and the position close to the lower mould cavity 5 in the wall of the lower mould body 4, air ducts 8 penetrate through the side walls of the upper mould body 1 and the lower mould body 4, the air ducts 8 are obliquely arranged in relation to the vertical directions of the upper mould body 1 and the lower mould body 4, the inclination angle of the air ducts 8 is 30 degrees, and the air, and the wind channel 8 runs through from the blocking net layer 7, the diameter of the round mouth of the inner wind port 9 is smaller than that of the round mouth of the outer wind port 10, the inclined wind channel 8 is favorable for ventilation and can prevent a large amount of materials in the die cavity from overflowing, the blocking net layer 7 is arranged to intercept the materials overflowing from the wind channel 8, so that the materials are kept in the die cavity as far as possible, the caliber of the inner wind port 9 is smaller than that of the outer wind port 10, the entering of an outer wind source is facilitated, and the overflowing of the inner materials is avoided.

The upper pressing plate 11 is connected above the upper die body 1, an inner cavity 12 is arranged inside the upper pressing plate 11, a sliding groove 13 is formed in the cavity wall of the inner cavity 12, a pressing plate 14 is arranged in the cavity of the inner cavity 12 in a sliding fit mode through the sliding groove 13, air pipes 15 penetrate through the inside of the upper pressing plate 11 and the inside of the pressing plate 14, a folding pipe 1501 is arranged in the middle section of the air pipe 15, a wide opening 1502 is fixed at the bottom end of the air pipe 15, a loose joint 1503 is spirally connected to the upper end of the air pipe 15, the folding pipe 1501 is of a retractable folding structure and can stretch in the pipe direction, so that the length of the air pipe 15 is adjustable, the wide opening 1502 contributes to expanding the wind power and the blowing range of a pipe orifice of the air pipe 15, the loose joint 1503 is used for connecting air supply pipelines, the wide openings 1502 correspond to the blowing orifices 3 one by one to one another, the blowing orifices 3 are of conical hole structures which are wide at the top and narrow at, when the demolding, through providing the wind pressure to the shaping work piece, help pushing out the shaping work piece, the mouthpiece 3 of toper can avoid the material to spill over the mould by mouthpiece 3.

The air-ejecting elastic mechanism 16 is arranged in the inner cavity 12 at equal intervals, one end of the air-ejecting elastic mechanism 16 is fixed on the upper pressing plate 11, the other end of the air-ejecting elastic mechanism 16 is welded on the pressing plate 14, the air-ejecting elastic mechanism 16 is used for ejecting the pressing plate 14 in an elastic manner, the arrangement of the air-ejecting elastic mechanisms 16 enables the pressing plate 14 to be stressed evenly on the upper pressing plate 11, the air-ejecting elastic mechanism 16 comprises an air-ejecting seat 1601, a rubber ring 1602, a movable column 1603 and a spring 1604, the inner portion of the air-ejecting seat 1601 is of a hollow structure, the rubber ring 1602 is embedded in the inner side opening edge of the air-ejecting seat 1601, the movable column 1603 extends into the air-ejecting seat 1601 from the rubber ring 1602, the outer wall of the movable column 1603 is sleeved with the spring 1604, one end of the spring 1604 is fixed on the air-ejecting seat 1601, the other end of the spring 1604 is fixed on the movable column 1603, the structure of the air-ejecting elastic mechanism, rubber ring 1602 guarantees that activity post 1603 also can keep good compactness with gas cap 1601 when making in gas cap 1601 when moving to can effectively avoid the problem of gas leakage, spring 1604 is used for improving the elasticity reset capability of gas cap elastic mechanism 16.

Lower plate 19 installs the below at die body 4 down, and lower plate 19's inside is fixed with gas pole seat 20, install pneumatic telescopic rod 21 on the gas pole seat 20, and pneumatic telescopic rod 21 all runs through from lower plate 19 and lower die body 4's inside, the equal vertical penetration of centre of upper plate 11 and lower plate 19 has the mechanism 17 of watering, the mechanism 17 of watering is watered and is divided and establish about, when pouring into the material in to the die cavity like this, can adopt the mode of pouring into the material simultaneously from top to bottom, such notes material mode, on the one hand the notes material time that has significantly reduced, on the other hand then helps improving the degree of consistency of pouring into the material.

The injection mechanism 17 comprises a cartridge 1701, a cartridge 1702, a conduit 1704, a tube head 1706 and an injection gate 1708, the cartridge 1702 is fixed on the inner wall of the upper port of the cartridge 1701, the conduit 1704 vertically penetrates through the cartridge 1701, the tube head 1706 is fixed at the bottom end of the conduit 1704, the injection gate 1708 is arranged below the tube head 1706, the cartridge 1701 is in key fit connection with the upper pressure plate 11 and the lower pressure plate 19, the conduit 1704 penetrates through the cartridge 1701 and can complete rotary motion in the cartridge 1701, the cartridge 1702 is used for smoothly and transitionally introducing materials into the conduit 1704, the cartridge 1701 penetrates through the inner parts of the upper pressure plate 11 and the lower pressure plate 19 in a key-in fit manner, the connection of the injection mechanism 17 with the upper pressure plate 11 and the lower pressure plate 19 is facilitated, when the upper pressure plate 11 rotates, the cartridge 1701 connected with the upper pressure plate 11 synchronously rotates on the conduit 1704, the rotation of the upper pressure plate 11 is beneficial to smooth the grinding of the protruding materials on the blowing port 3, matching pipe slots 1705 are formed in the inner wall of the upper end opening of the guide pipe 1704, the inserting barrel 1702 is inserted and matched in the matching pipe slots 1705, an inner thread ring 1703 is formed in the inner wall of the lower end opening of the clamping barrel 1701, the inserting barrel 1702 and the matching pipe slots 1705 are matched with each other, materials can be better received, the materials can enter the position of the injection gate 1708 through an absolutely complete pipeline structure, an outer thread ring 1707 is formed in the upper portion of the outer wall of the pipe head 1706, the outer thread ring 1707 is matched with the inner thread ring 1703 in size, the clamping barrel 1701 and the guide pipe 1704 are locked in a spiral mode through matching between the outer thread ring 1707 and the inner thread ring 1703, the two are combined into one, and stable injection pouring work is completed.

The pneumatic telescopic rods 21 are uniformly arranged in an annular mode about the vertical center line of the lower pressing plate 19, the pneumatic telescopic rods 21 are parallel to each other, the pneumatic telescopic rods 21 are 6130 in model and stretch by means of the pneumatic principle, the pneumatic telescopic rods 21 are used in the die and play a role in ejecting formed workpieces in the lower die body 4, and the uniformly arranged pneumatic telescopic rods 21 are beneficial to ejecting the workpieces uniformly, so that the purpose of rapid demoulding is achieved.

In conclusion, in the mold for processing the manual pliers convenient for rapid demolding, materials are simultaneously injected up and down through the two injection mechanisms 17, and the materials are rapidly injected into the upper mold cavity 2 and the lower mold cavity 5, it is noted that during injection molding, the clamping cylinder 1701 and the guide tube 1704 in the injection mechanism 17 are in a spiral locking state, that is, the upper pressing plate 11 and the lower pressing plate 19 are respectively attached to the upper mold body 1 and the lower mold body 4, during the injection molding process, an external air source enters the upper mold cavity 2 and the lower mold cavity 5 through the air duct 8 to cool the internal mold materials, and when the air duct 15 is connected into the air supply duct by the loose joint 1503, the air supply duct injects air into the air duct 15, and at the moment, the air enters the upper mold cavity 2 through the blowing port 3 to cool the mold materials in the upper mold cavity 2, and the air ports are arranged to facilitate rapid molding of the materials;

when the upper pressing plate 11 is tightly pressed on the upper die body 1, the pressing plate 14 is tightly attached to the upper die body 1, so that the mold material overflowing from the outer opening of the mouthpiece 3 can be reduced, the mold material is prevented from overflowing in a large amount, when the pouring mechanism 17 in the upper pressing plate 11 is loosened, the upper pressing plate 11 can be lifted, the air-ejecting elastic mechanism 16 ejects the pressing plate 14, the pressing plate 14 is still contacted with the upper surface of the upper die body 1, the upper pressing plate 11 is rotated, and the mold material overflowing from the outer opening of the mouthpiece 3 can be ground by utilizing the friction force generated by the contact between the pressing plate 14 and the upper die body 1, so that the smoothness of the mold is ensured;

when demoulding, the locking screw 6 is firstly disassembled to separate the upper die body 1 from the lower die body 4, then the air pipe 15 blows air to the blowing opening 3, the air pressure pushes the die in the upper die cavity 2 to push the die outwards, meanwhile, the pneumatic telescopic rods 21 act to synchronously extend to push the die in the lower die cavity 5 outwards, and the two die pushing modes start synchronously and supplement each other, so that the rapid demoulding process can be completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a manual pliers processing is with mould convenient to fast demoulding, includes die body (1), lower die body (4), top board (11) and holding down plate (19), its characterized in that: an upper die cavity (2) is arranged in the upper die body (1), a blowing opening (3) penetrates through the upper cavity wall of the upper die cavity (2) at equal intervals, the lower die body (4) is arranged below the upper die body (1), a lower die cavity (5) is arranged in the lower die body (4), a locking screw (6) penetrates through the upper die body (1) and the lower die body (4), a sealing ring (18) is arranged between the upper die body (1) and the lower die body (4), a blocking net layer (7) is arranged at the position, close to the upper die cavity (2), in the wall of the upper die body (1) and the position, close to the lower die cavity (5), in the wall of the lower die body (4), air channels (8) penetrate through the side walls of the upper die body (1) and the lower die body (4), the upper pressing plate (11) is connected above the upper die body (1), and an inner cavity (12) is arranged in the upper pressing plate (11), spout (13) have been seted up to the chamber wall of inner chamber (12), and there is pressure disk (14) through spout (13) sliding fit in the intracavity of inner chamber (12), the inside of top board (11) and the inside of pressure disk (14) all run through there is tuber pipe (15), the below of die body (4) is down installed to holding down plate (19), and the inside of holding down plate (19) is fixed with air rod seat (20), install pneumatic telescopic link (21) on air rod seat (20), and pneumatic telescopic link (21) all run through from the inside of holding down plate (19) and lower die body (4), the equal vertical running through of centre of top board (11) and holding down plate (19) has injection mechanism (17).

2. The mold for machining the manual pliers convenient for quick demolding according to claim 1, wherein the mold comprises: the air duct (8) is obliquely arranged in the vertical direction of the upper die body (1) and the lower die body (4), the inclination angle of the air duct (8) is 30 degrees, the air duct (8) is uniformly arranged in a dot matrix manner on the upper die body (1) and the lower die body (4) along the vertical direction, the air duct (8) penetrates through the blocking net layer (7), and the diameter of the round opening of the inner air opening (9) is smaller than that of the round opening of the outer air opening (10).

3. The mold for machining the manual pliers convenient for quick demolding according to claim 1, wherein the mold comprises: the middle section of tuber pipe (15) is provided with folding pipe (1501), and the bottom mounting of tuber pipe (15) has wide-mouth (1502) to the upper end screwed connection of tuber pipe (15) has loose joint (1503).

4. The mold for machining the manual pliers convenient for quick demolding according to claim 3, wherein the mold comprises: the wide mouth (1502) and the mouthpiece (3) are in one-to-one correspondence, and the mouthpiece (3) is in a conical hole structure with a wide upper part and a narrow lower part.

5. The mold for machining the manual pliers convenient for quick demolding according to claim 1, wherein the mold comprises: the inner portion of the inner cavity (12) is equidistantly provided with gas cap elastic mechanisms (16), one ends of the gas cap elastic mechanisms (16) are fixed on the upper pressing plate (11), and the other ends of the gas cap elastic mechanisms (16) are welded on the pressing plate (14).

6. The mold for machining the manual pliers convenient for quick demolding according to claim 5, wherein: air cap elasticity mechanism (16) include air cap seat (1601), rubber ring (1602), activity post (1603) and spring (1604), the inside of air cap seat (1601) is hollow structure, and the inboard mouth of air cap seat (1601) has rubber ring (1602) along the embedding, the inside of stretching into air cap seat (1601) from rubber ring (1602) is followed to activity post (1603), and the outer wall cover of activity post (1603) is equipped with spring (1604), the one end of spring (1604) is fixed on air cap seat (1601), and the other end of spring (1604) is fixed on activity post (1603).

7. The mold for machining the manual pliers convenient for quick demolding according to claim 1, wherein the mold comprises: the pouring mechanism (17) comprises a clamping cylinder (1701), an inserting cylinder (1702), a conduit (1704), a pipe head (1706) and a pouring gate (1708), wherein the inserting cylinder (1702) is fixed to the inner wall of the upper end opening of the clamping cylinder (1701), the conduit (1704) vertically penetrates through the inner part of the clamping cylinder (1701), the pipe head (1706) is fixed to the bottom end of the conduit (1704), the pouring gate (1708) is arranged below the pipe head (1706), and the clamping cylinder (1701) is in key fit connection with the upper pressing plate (11) and the lower pressing plate (19).

8. The mold for rapid demolding in manual pliers processing as claimed in claim 7, wherein: the inner wall of the upper port of the guide pipe (1704) is provided with a matching pipe groove (1705), the inserting cylinder (1702) is inserted and matched in the matching pipe groove (1705), and the inner wall of the lower port of the clamping cylinder (1701) is provided with an inner thread ring (1703).

9. The mold for rapid demolding in manual pliers processing as claimed in claim 8, wherein: an external thread ring (1707) is arranged on the upper portion of the outer wall of the tube head (1706), and the external thread ring (1707) is matched with the internal thread ring (1703) in size.

10. The mold for machining the manual pliers convenient for quick demolding according to claim 1, wherein the mold comprises: the pneumatic telescopic rods (21) are uniformly arranged in an annular mode about the vertical center line of the lower pressing plate (19), and the pneumatic telescopic rods (21) are parallel to each other.