阅读说明：本技术 一种塑料滴管吹塑模具及其控制方法 (Plastic dropper blow molding mold and control method thereof ) 是由 张江华 于 2021-08-16 设计创作，主要内容包括：本申请公开了一种塑料滴管吹塑模具,属于吹塑模具的技术领域,其技术方案要点是包括：定模座,定模座安装有吹塑定模板、切边定模板；动模座,动模座安装有吹塑动模板、切边动模板；切边结构,切边结构安装于动模座上；其中,吹塑定模板与吹塑动模板对应,切边定模板与切边动模板对应,切边定模板设有若干切边槽,切边动模板设有切边槽对应的安装槽,切边动模板设有若干置于安装槽周围的凸台,本申请提供一种塑料滴管吹塑模具,便于将生产出的塑料滴管半成品快速切边,提高塑料滴管的加工效率。(The application discloses plastic dropper blowing mould belongs to blowing mould's technical field, and its technical scheme main points include: the fixed die base is provided with a blow molding fixed die plate and an edge cutting fixed die plate; the movable die base is provided with a blow molding movable die plate and an edge cutting movable die plate; the trimming structure is arranged on the movable die holder; wherein, the blowing fixed die plate corresponds with the blowing movable mould board, and the side cut fixed die plate corresponds with the side cut movable mould board, and the side cut fixed die plate is equipped with a plurality of trimming grooves, and the side cut movable mould board is equipped with the mounting groove that the trimming groove corresponds, and the side cut movable mould board is equipped with a plurality of bosss of arranging in around the mounting groove, and this application provides a plastics burette blowing mould, is convenient for cut the edge fast with the plastics burette semi-manufactured goods that produce, improves the machining efficiency of plastics burette.)

1. A plastic dropper blow mold, comprising:

the blow molding die comprises a fixed die holder (1), wherein a blow molding fixed die plate (11) and an edge cutting fixed die plate (12) are installed on the fixed die holder (1);

the movable die holder (2) is provided with a blow molding movable die plate (21) and an edge cutting movable die plate (22);

the trimming structure (3), the trimming structure (3) is arranged on the movable die holder (2);

the blow molding fixed die plate (11) corresponds to the blow molding movable die plate (21), the trimming fixed die plate (12) corresponds to the trimming movable die plate (22), the trimming fixed die plate (12) is provided with a plurality of trimming grooves (121), the trimming movable die plate (22) is provided with mounting grooves (221) corresponding to the trimming grooves (121), and the trimming movable die plate (22) is provided with a plurality of bosses (222) arranged around the mounting grooves (221).

2. A plastic dropper blow mold according to claim 1, wherein the trimming structure (3) comprises:

the cutting assembly (31), the cutting assembly (31) comprises a blade (311), a first air cylinder (312) and a mounting frame (313), the first air cylinder (312) is installed on the movable die holder (2), and the blade (311) is installed on the mounting frame (313);

the trimming assembly (32) comprises a trimming cutter block (321), a push plate (322) and a second air cylinder (323), one side of the trimming cutter block (321) is installed on the push plate (322), the other side of the trimming cutter block is provided with an arc surface (3211) matched with the dropper, the second air cylinder (323) is installed on the movable die holder (2), and an expansion rod of the second air cylinder (323) penetrates through the movable die holder (2) and is connected with the push plate (322);

the ejection mechanism (4) is arranged on the trimming assembly (32), the ejection mechanism (4) is provided with a push rod (41), and the push rod (41) is arranged on the trimming cutter block (321) to move in a telescopic mode to push out a dropper on the trimming cutter block (321).

3. A plastic dropper blow mold according to claim 2, wherein the ejection mechanism (4) comprises:

the ejector block (42), the ejector block (42) is arranged at one end of the push rod (41), and the ejector block (42) is matched with the cambered surface (3211);

the clutch mechanism (5), the said clutch mechanism (5) is placed in another end of the push rod (41);

the buffer mechanism (6), the said buffer mechanism (6) is placed in the middle of the push rod (41);

the first spring (43) is sleeved outside the push rod (41) and is arranged in the buffer mechanism (6), and the push rod (41) is extended outwards by the first spring (43).

4. A plastic dropper blow mold according to claim 3, wherein the clutch mechanism (5) comprises:

a clutch cap (51), wherein the clutch cap (51) comprises a rod part (512), a cap part (511) and a first clutch part (513);

the second spring (52) is sleeved on the rod part (512), one end of the second spring (52) is abutted to the cap part (511), and the other end of the second spring (52) is provided with a limiting part (3221) arranged on the push plate (322);

the locking hooks (53) are uniformly distributed around the axis of the first clutch part (513), the locking hooks (53) are hinged with the first clutch part (513), and a third spring (54) is arranged between the locking hooks (53) and the first clutch part (513);

the second clutch part (44), the second clutch part (44) corresponds to the first clutch part (513), the second clutch part (44) is installed on the push rod (41), and the second clutch part (44) is provided with a clutch groove (441) matched with the lock hook (53);

a separation structure (7), the separation structure (7) separating the latch hook (53) from the engagement groove (441).

5. Plastic dropper blow mould according to claim 4, wherein the separation structure (7) comprises:

the first movable grooves (71), the first movable grooves (71) are arranged on two sides of the push rod (41) and are symmetrically distributed;

the second movable grooves (72) are arranged on two sides of the trimming cutter block (321) and correspond to the first movable grooves (71);

the separating piece (73) penetrates through the first movable groove (71) and the second movable groove (72) and is arranged on the first movable groove (71) and the second movable groove (72) to move, the separating piece (73) is provided with a touch piece (74), the touch piece (74) is arranged between the first clutch part (513) and the second clutch part (44), the touch piece (74) and the separating piece (73) are connected through a plurality of connecting pieces (75), the connecting pieces (75) penetrate through the second clutch part (44), and the push plate (322) is provided with a separating groove (3222) matched with the separating piece (73);

and the fourth spring (76) is sleeved on the connecting piece (75), one end of the fourth spring (76) props against the separating piece (73), and the other end props against the second clutch part (44).

6. A plastic dropper blow mold according to claim 5, wherein the buffer mechanism (6) comprises:

the buffer shell (61), the buffer shell (61) is installed in the trimming cutter block (321), the buffer shell (61) is provided with a buffer cavity (611), the buffer cavity (611) is filled with viscous fluid, the push rod (41) penetrates through the buffer shell (61), and sealing parts (63) matched with the push rod (41) are arranged at two ends of the buffer shell (61);

the buffer block (62) is installed on the push rod (41) and is arranged in the buffer cavity (611), one end of the first spring (43) abuts against the buffer block (62), and the other end of the first spring (43) abuts against the inner wall surface of the buffer shell (61).

7. The plastic dropper blow mold of claim 6 wherein the number of bosses (222) is 32 and the bosses are regularly distributed on the trimming moving platen (22).

8. A control method suitable for the plastic dropper blow mold of claim 7, wherein the control method comprises the following steps: s1: a semi-finished product of the plastic dropper is processed through a molding cavity between a blow molding fixed template (11) and a blow molding movable template (21);

s2: placing the semi-finished product of the plastic dropper at a position corresponding to the mounting groove (221), combining the trimming fixed die plate (12) and the trimming movable die plate (22), pressing the semi-finished product of the plastic dropper through the boss (222), driving all the blades (311) to move through the first air cylinder (312) to cut off the tip of the plastic dropper and the semi-finished product of the plastic dropper, and driving all the blades (311) to reset through the first air cylinder (312);

s3; the push plate (322) is driven to move by the second air cylinder (323), and the plastic dropper is separated from the flash by the trimming knife block (321) and the trimming groove (121);

s4: the plastic dropper is ejected out through the ejection mechanism (4) and is separated from the trimming knife block (321), an ejection gap (122) is formed between the trimming fixed die plate (12) and the fixed die holder (1), the plastic dropper falls from the ejection gap (122), and then the push plate (322) is reset through the driving of the second air cylinder (323).

9. The method for controlling a plastic dropper blow mold according to claim 8, wherein the step of ejecting the ejection mechanism (4) in step S4 is as follows: t1: when the second air cylinder (323) pushes the trimming cutter block (321) to eject, the locking hook (53) is matched with the clutch groove (441), so that the first clutch part (513) is connected with the second clutch part (44), and the ejector block (42) is matched with the cambered surface (3211);

t2: the second air cylinder (323) drives the push plate (322) to eject continuously, so that the separating piece (73) is abutted to the trimming movable template (22), the separating piece (73) is pressed to the first clutch part (513) to move, the abutting piece (74) is abutted to the locking hook (53) and applies pressure to the locking hook (53), the locking hook (53) is separated from the clutch groove (441), and the first spring (43) acts on the buffer block (62) to push the push rod (41) to eject the ejector block (42);

t3: after the ejection is finished, the second air cylinder (323) resets, the push plate (322) is enabled to continuously move towards the movable die base (2), when the clutch cap (51) is abutted against and pressed by the movable die base (2), the first clutch part (513) moves towards the second clutch part (44), the lock hook (53) is enabled to be matched with the clutch groove (441), the first clutch part (513) is connected with the second clutch part (44), and the ejection mechanism (4) is ejected out circularly.

Technical Field

The application belongs to the technical field of blow molds, and particularly relates to a plastic dropper blow mold and a control method thereof.

Background

The plastic dropper is made of PE, PET and other materials, is an indispensable experimental consumable in industries such as laboratories, food research, medicine and the like, and has the advantages of low cost, simple use and the like.

The prior Chinese patent with publication number CN102848557A discloses a blowing mold of a pasteur pipette, wherein an air inlet cavity and a pipette cavity are arranged on the mold, a blank cutting opening and a residual material groove are arranged around the cavity, a small suction head part of the pipette cavity is communicated with the air inlet cavity, a blade is inserted at the joint of the small suction head part of the pipette cavity and the air inlet cavity, and the blade is driven by a driving mechanism arranged on the mold to enter and exit the joint of the small suction head part of the pipette cavity and the air inlet cavity. According to the technical scheme, the connecting part of the suction pipe and the air port part is directly cut off by the mold during blow molding and demolding, and the suction pipe is torn off from a semi-finished product of the Pasteur suction pipe only by manpower.

Although the blow mold cuts off the connection part of the dropper and the air port part, the dropper needs to be manually separated from the semi-finished product, the manual separation of the dropper increases the processing cost, and the processing efficiency is low, so that the blow mold is not beneficial to mass production.

Disclosure of Invention

The purpose of the embodiment of the application is to solve the technical problems, and to provide a plastic dropper blowing mold which is convenient for rapidly cutting edges of a produced semi-finished product of a plastic dropper and improves the processing efficiency of the plastic dropper.

The embodiment of the application provides a plastics burette blowing mold, includes: the fixed die base is provided with a blow molding fixed die plate and an edge cutting fixed die plate; the movable die base is provided with a blow molding movable die plate and an edge cutting movable die plate; the trimming structure is arranged on the movable die holder; the blow molding fixed die plate corresponds to the blow molding movable die plate, the trimming fixed die plate corresponds to the trimming movable die plate, the trimming fixed die plate is provided with a plurality of trimming grooves, the trimming movable die plate is provided with mounting grooves corresponding to the trimming grooves, and the trimming movable die plate is provided with a plurality of bosses arranged around the mounting grooves.

The die is convenient to mount on a blow molding machine through a fixed die holder and a movable die holder, the fixed die holder and the movable die holder are clamped through a clamping device on the blow molding machine, a blow molding fixed die plate and an edge cutting fixed die plate are connected with the fixed die holder through bolts, a blow molding movable die plate and the edge cutting movable die plate are connected with the movable die holder through bolts, the mounting tightness is ensured, a plurality of molding cavities are uniformly distributed between the blow molding fixed die plate and the blow molding movable die plate, 4 molding cavities are arranged, a semi-finished product of a plastic dropper is molded through the blow molding fixed die plate and the blow molding movable die plate, the semi-finished product comprises a plastic dropper, a flange connected around the plastic dropper and an air port part at the tip of the plastic dropper, the air port part is formed by blow molding with the blow molding machine during molding of the semi-finished product of the plastic dropper, the semi-finished product of the plastic dropper is controlled to be arranged on an edge cutting groove through the blow molding machine to control the movement of the die holder, so that the edge cutting movable die plate and the boss and the edge cutting fixed die plate simultaneously move to tightly press the flange of the semi-finished product of the plastic dropper, the plurality of bosses are regularly distributed around the mounting groove and are integrally connected with the trimming movable template, so that the structural strength is stable, the plastic dropper is separated from a semi-finished product of the plastic dropper through the trimming structure, the stability during trimming is improved, and the production quality of the plastic dropper is further improved.

Further, the trimming structure includes: the cutting assembly comprises a blade, a first air cylinder and an installation frame, the first air cylinder is installed on the movable die holder, and the blade is installed on the installation frame; the edge cutting assembly comprises an edge cutting knife block, a push plate and a second cylinder, one side of the edge cutting knife block is arranged on the push plate, the other side of the edge cutting knife block is provided with a cambered surface matched with the dropper, the second cylinder is arranged on the movable die holder, and a telescopic rod of the second cylinder penetrates through the movable die holder and is connected with the push plate; the push rod is arranged on the edge cutting knife block and moves in a telescopic mode to push out the dropper on the edge cutting knife block.

The utility model discloses a plastic burette, including a mounting bracket, a blade driving device, a plastic burette, a cutting assembly, a blade, a movable mould board, a telescopic link, a mounting bracket, a screw or bolt connection, it stretches out and draws back simultaneously to cut off the tip of subassembly with the tip of plastic burette and cut off the separation through the gas port portion on the subassembly with the tip of plastic burette and the semi-manufactured goods of plastic burette, the blade passes through the edge cutting movable mould board, through screw or bolted connection between the telescopic link of first cylinder and the mounting bracket, it is flexible simultaneously to drive whole blades through first cylinder, the tip through the blade is to the cutting of the semi-manufactured goods of plastic burette, partly leave the closed structure shape that influences the burette in tip department when preventing to cut off. The second cylinder is installed on the movable die holder through a bolt, an expansion link of the second cylinder penetrates through the movable die holder and is connected with the push plate through a bolt, the push plate is connected with the knife block through a bolt, the knife block is arranged in the installation groove to stretch and move, the cambered surface is matched with the plastic dropper, the phenomenon that the appearance and the use of the plastic dropper are affected due to the fact that the plastic dropper is unevenly deformed under pressure during trimming is avoided, the push plate is driven to move through the second cylinder, the knife block is ejected out simultaneously, the knife block and the trimming groove interact, the plastic dropper is separated from a semi-finished product, the plastic dropper is easily connected with an edge cutting edge of the knife block after being separated from the semi-finished product, the plastic dropper is placed on the knife block to affect trimming of the next semi-finished product, the plastic dropper on the knife block is separated and dropped through a push rod on the ejection mechanism, the ejection mechanism is installed on the trimming assembly and is mainly connected with the push plate and the knife block.

Further, the ejection mechanism includes: the ejector block is arranged at one end of the push rod and is matched with the cambered surface; the clutch mechanism is arranged at the other end of the push rod; the buffer mechanism is arranged in the middle of the push rod; the first spring is sleeved outside the push rod and arranged in the buffer mechanism, and the push rod is extended outwards by the first spring.

One end of the push rod is welded or in threaded connection with the ejector block, the ejector block is matched with the arc surface, smoothness of the arc surface is guaranteed, the push rod is pushed out through the first spring, ejection action of the ejection mechanism is achieved, the push rod is locked through the clutch mechanism, the ejector block is enabled to be matched with the arc surface before the push rod performs the ejection action, the first spring is enabled to act on the push rod through separation of the clutch mechanism to eject the push rod, the push rod is enabled to be ejected slowly through the buffer mechanism, impact of the push rod on the plastic dropper is reduced, and damage to the plastic dropper is reduced.

Further, the clutch mechanism includes: the clutch cap comprises a rod part, a cap part and a first clutch part; the second spring is sleeved on the rod part, one end of the second spring is abutted against the cap part, and the other end of the second spring is provided with a limiting part arranged on the push plate; the locking hooks are uniformly distributed around the axis of the first clutch part and are hinged with the first clutch part, and a third spring is arranged between the locking hooks and the first clutch part; the second clutch part corresponds to the first clutch part, the second clutch part is arranged on the push rod, and a clutch groove matched with the lock hook is formed in the second clutch part; the separation structure separates the lock hook from the clutch groove.

The clutch cap is movably arranged on the push plate, the second spring is sleeved on the rod part, the cap part of the clutch cap extends to the outer side of the push plate under the action of the second spring and the limiting part, the first clutch part is limited by the limiting part, the clutch cap is prevented from popping out under the action of the second spring and is correspondingly locked by the lock hook on the first clutch part and the clutch groove on the second clutch part, one end of the lock hook is buckled on the clutch groove, the other end of the lock hook enables the lock hook to be tightly buckled with the clutch groove under the action of the second spring, the locking stability of the clutch mechanism is ensured, the elastic potential energy of the second spring is greater than that of the first spring, when the first clutch part and the second clutch part are shrunk, the ejector block is ensured to be matched with the cambered surface, the rod part is integrally connected with the cap part, the structure stability of the clutch cap is ensured, the first clutch part is in threaded connection or in bolted connection with the rod part, the second clutch part is in threaded connection or in bolted connection with the push rod, the stability of the mounting structure is guaranteed, the lock hook is separated from the separating groove under the action of the separating mechanism on the lock hook, and the push rod is ejected out by the first spring.

Further, the separation structure comprises: the first movable grooves are arranged on two sides of the push rod and are symmetrically distributed; the second movable grooves are arranged on two sides of the edge cutting knife block and correspond to the first movable grooves; the separating piece penetrates through the first movable groove and the second movable groove and is arranged on the first movable groove and the second movable groove to move, the separating piece is provided with a touch piece, the touch piece is arranged between the first clutch part and the second clutch part, the touch piece and the separating piece are connected through a plurality of connecting pieces, the connecting pieces penetrate through the second clutch part, and the push plate is provided with a separating groove matched with the separating piece; and one end of the fourth spring is abutted against the separating piece, and the other end of the fourth spring is abutted against the second clutch part.

The first movable groove and the second movable groove are formed by milling, the first movable groove and the second movable groove correspond to each other to ensure that the separating piece passes through the first movable groove and the second movable groove, the separating piece is arranged in the first movable groove and the second movable groove and moves along the axial direction of the push rod, the second air cylinder pushes the push plate to move, when the push plate is abutted against the edge cutting movable template, the separating piece is pressed to move towards the first clutch part, the separating piece is convenient to move through the separating groove, the push plate is prevented from colliding with the separating piece when the push plate is abutted against the edge cutting movable template, the service life of the separating piece is prolonged, the contact piece acts towards the latch hook, the latch hook is pressed to separate from the clutch groove, the first clutch part and the second clutch part are unlocked, the push rod is enabled to eject the plastic dropper out of the knife block after the edge cutting of the plastic dropper is finished, the blanking of the plastic dropper is finished, the structural strength of the contact piece and the separating piece is improved through the connecting piece, when the push plate is separated from the trimming movable template, the separating piece is reset under the action of the fourth spring, the touch piece is separated from the lock hook at the moment, the lock hook is reset under the action of the third spring, the first clutch part and the second clutch part are close to each other at the moment, and the lock hook and the clutch groove are matched and locked again.

Further, the buffer mechanism includes: the buffering shell is arranged in the trimming cutter block and provided with a buffering cavity, viscous fluid is filled in the buffering cavity, the push rod penetrates through the buffering shell, and sealing pieces matched with the push rod are arranged at two ends of the buffering shell; the buffer block is arranged on the push rod and is arranged in the buffer cavity, one end of the first spring is abutted to the buffer block, and the other end of the first spring is abutted to the inner wall surface of the buffer shell.

Buffering casing passes through screw or bolted connection in the cutter block, make buffering casing simple to operate and structure firm, the buffer block is installed in the buffer chamber, it has viscous fluid to fill in the buffer chamber, viscous fluid adopts water or damping oil etc., first spring mounting is in the one side of being close to second separation and reunion portion, the one end of first spring is contradicted in the buffer block, the other end of first spring is contradicted in the internal face of buffering casing, the buffer block makes the push rod remove and releases the kicking block through the effect of first spring in arranging the buffer chamber in, improve the shock-absorbing capacity to the buffer block through viscous fluid, it is slow to make the buffer block remove, reduce the impact of kicking block to the plastics burette, increase the sealed effect to the buffer chamber through the sealing member, and sealing performance when guaranteeing the flexible removal of push rod. ,

furthermore, the boss is provided with 32 and regularly distributed on the side cut movable mould board.

The boss is provided with 32, is provided with 8 bosss around every mounting groove promptly, through boss regular distribution in the mounting groove around, compresses tightly the overlap through boss and side cut movable mould board, guarantees to compress tightly stably evenly, removes or warp when preventing to cut edge, guarantees that the plastics burette is cut edge smooth and burr-free, improves the quality of cutting edge.

The invention also provides a control method of the plastic dropper blow mold, which comprises the following steps:

s1: processing a semi-finished product of the plastic dropper through a molding cavity between the blow molding fixed template and the blow molding movable template;

s2: placing the semi-finished product of the plastic dropper at a position corresponding to the mounting groove, combining the trimming fixed die plate and the trimming movable die plate, pressing the semi-finished product of the plastic dropper through the boss, driving all the blades to move through the first cylinder to cut off the tip of the plastic dropper and the semi-finished product of the plastic dropper, and driving all the blades to reset through the first cylinder;

s3; the push plate is driven to move by the second cylinder, and the plastic dropper is separated from the flash by the trimming knife block and the trimming groove;

s4: the plastic burette is ejected out through the ejection mechanism and is separated from the trimming cutter block, an ejection gap is arranged between the trimming fixed die plate and the fixed die base, the plastic burette falls from the ejection gap, and then the push plate is reset through the driving of the second air cylinder.

Further, the ejection step of the ejection mechanism in step S4 is as follows: t1: when the second cylinder pushes the trimming cutter block to eject, the lock hook is matched with the clutch groove, so that the first clutch part is connected with the second clutch part, and the ejector block is matched with the cambered surface;

t2: the second cylinder drives the push plate to continuously eject, so that the separating piece is abutted against the trimming movable template, the separating piece is pressed to the first clutch part to move, the abutting piece is abutted against the lock hook and applies pressure to the lock hook, the lock hook is separated from the clutch groove, and the first spring acts on the buffer block to push the push rod to eject the ejector block;

t3: after ejection is completed, the second cylinder resets to enable the push plate to continuously move towards the movable die base, when the clutch cap is abutted against and pressed by the movable die base, the first clutch part moves towards the second clutch part, the lock hook is matched with the clutch groove, the first clutch part is connected with the second clutch part, and the ejection mechanism is ejected circularly.

The beneficial effects of the embodiment of the application are that:

1. the semi-finished product of the plastic dropper is formed by the blow molding fixed die plate and the blow molding movable die plate, the semi-finished product of the plastic dropper is placed on the trimming groove, the movable die base is driven to move towards the fixed die base, the lug boss of the trimming movable die plate and the trimming fixed die plate tightly press the flash of the semi-finished product of the plastic dropper, the blade is driven by the first air cylinder to move to cut off the tip of the plastic dropper and the air port part of the semi-finished product of the plastic dropper, and then the blade is driven by the second air cylinder to eject out and interact with the trimming groove to separate the plastic dropper on the semi-finished product of the plastic dropper.

2. The plastic dropper is ejected out of the cutter block through the ejection mechanism, the plastic dropper is prevented from being arranged on the cutter block to influence subsequent trimming, the second cylinder pushes the push plate to move towards the trimming movable template, the separating piece moves towards the first clutch part when the push plate abuts against the trimming movable template, the latch hook is separated from the clutch groove under the action of the touching piece on the latch hook, the push rod enables the ejector block to be ejected under the action of the first spring on the buffer block, the smoothness of the arc surface is improved through the adaptation of the ejector block and the arc surface, and the plastic dropper is prevented from being damaged.

3. Through on buffering casing installation and the sword piece, fill viscous fluid in the buffer cavity, when the buffer block was arranged in the buffer shell and is removed, improved the buffer performance of buffer block, the push rod was ejecting slowly when making first spring act on the buffer block, reduced the impact of kicking block to plastics burette.

4. The ejection mechanism ejects the plastic dropper, the push plate is driven to reset through the second cylinder, when the push plate moves to be abutted against the movable die base, the first clutch part moves towards the second clutch part when the clutch cap is pressed, the first clutch part and the second clutch part are locked through the matching of the lock hook and the clutch groove, when the push plate is pushed out by the second cylinder, the clutch cap moves towards the movable die base under the action of the second spring, so that the compression of the first spring is completed, the first spring is conveniently ejected subsequently, and the ejection block is enabled to be matched with the arc surface when the plastic dropper is trimmed.

Drawings

FIG. 1 is an isometric view of a blow mold according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a blow mold according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram at A of FIG. 2 according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram at B of FIG. 3 according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a separation structure according to an embodiment of the present application;

the reference number in the figure, 1, fixed die base; 11. blow molding a fixed template; 12. trimming a fixed template; 121. cutting an edge groove; 122. ejecting a gap; 2. a movable die holder; 21. blowing a movable template; 22. trimming the movable template; 221. mounting grooves; 222. a boss; 3. a trimming structure; 31. cutting off the assembly; 311. a blade; 312. a first cylinder; 313. a mounting frame; 32. a trimming assembly; 321. a cutter block; 3211. a cambered surface; 322. pushing the plate; 3221. a limiting part; 3222. a separation tank; 323. a second cylinder; 4. an ejection mechanism; 41. a push rod; 42. a top block; 43. a first spring; 44. a second clutch section; 441. a clutch groove; 5. a clutch mechanism; 51. a clutch cap; 511. a cap portion; 512. a rod portion; 513. a first clutch section; 52. a second spring; 53. a latch hook; 54. a third spring; 6. a buffer mechanism; 61. a buffer housing; 611. a buffer chamber; 62. a buffer block; 63. a seal member; 7. a separation structure; 71. a first movable slot; 72. a second movable slot; 73. a separating member; 74. a touch piece; 75. a connecting member; 76. and a fourth spring.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The portable server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings by specific embodiments and application scenarios thereof.

Example 1

As shown in fig. 1, an embodiment of the present application provides a plastic dropper blow mold, including: the fixed die holder 1 is provided with a blow molding fixed die plate 11 and an edge cutting fixed die plate 12; the movable die holder 2 is provided with a blow molding movable die plate 21 and an edge cutting movable die plate 22; the trimming structure 3 is arranged on the movable die holder 2; the blow molding fixed die plate 11 corresponds to the blow molding movable die plate 21, the trimming fixed die plate 12 corresponds to the trimming movable die plate 22, the trimming fixed die plate 12 is provided with a plurality of trimming grooves 121, the trimming movable die plate 22 is provided with mounting grooves 221 corresponding to the trimming grooves 121, and the trimming movable die plate 22 is provided with a plurality of bosses 222 arranged around the mounting grooves 221.

Further, 32 bosses 222 are arranged and regularly distributed on the trimming movable die plate 22.

The die is convenient to install on a blow molding machine through a fixed die holder 1 and a movable die holder 2, the fixed die holder 1 and the movable die holder 2 are clamped through a clamping device on the blow molding machine, a blow molding fixed die plate 11 and an edge cutting fixed die plate 12 are connected with the fixed die holder 1 through bolts, a blow molding movable die plate 21 and an edge cutting movable die plate 22 are connected with the movable die holder 2 through bolts, the installation tightness is ensured, a plurality of molding cavities are uniformly distributed between the blow molding fixed die plate 11 and the blow molding movable die plate 21, 4 molding cavities are arranged, a semi-finished product of a plastic dropper is molded through the blow molding fixed die plate 11 and the blow molding movable die plate 21, the plastic dropper comprises a plastic dropper, a flash connected around the plastic dropper and an air port part at the tip of the plastic dropper, the air port part is formed by blow molding of the blow molding machine when the semi-finished product of the plastic dropper is molded, the plastic dropper is controlled to be arranged on an edge cutting groove 121 through the blow molding machine, the plastic dropper is separated from the semi-finished product of the plastic dropper through the trimming structure 3, the stability during trimming is improved, and the production quality of the plastic dropper is further improved.

The bosses 222 are 32, namely 8 bosses 222 are arranged around each mounting groove 221, the bosses 222 are regularly distributed around the mounting grooves 221, the flanges are tightly pressed with the trimming movable die plate 22 through the bosses 222, the pressing is stable and uniform, the moving or deformation during trimming is prevented, the trimming of the plastic dropper is smooth and free of burrs, and the trimming quality is improved.

Example 2

As shown in fig. 2, the embodiment of the present application provides a plastic dropper blow mold, which, in addition to the above technical features, further includes the trimming structure 3: the cutting assembly 31, the cutting assembly 31 includes the blade 311, the first cylinder 312, the mounting bracket 313, the first cylinder 312 is mounted on the movable die holder 2, the blade 311 is mounted on the mounting bracket 313; the edge cutting assembly 32, the edge cutting assembly 32 includes an edge cutting knife block 321, a push plate 322, a second cylinder 323, one side of the edge cutting knife block 321 is installed on the push plate 322, the other side is provided with an arc surface 3211 adapted to the dropper, the second cylinder 323 is installed on the movable die holder 2, and a telescopic rod of the second cylinder 323 penetrates through the movable die holder 2 and is connected with the push plate 322; the ejection mechanism 4 is arranged on the edge cutting assembly 32, the ejection mechanism 4 is provided with a push rod 41, and the push rod 41 is arranged on the edge cutting knife block 321 to move in a telescopic mode so as to push out the dropper on the edge cutting knife block 321.

The tip of the plastic dropper is cut off and separated from the air port of the semi-finished plastic dropper through the cutting component 31, the blade 311 is installed on the installation frame 313 through a screw, each edge cutting groove 121 corresponds to one blade 311, the end part of the blade 311 is in a sharp-cornered shape, the blade 311 penetrates through the edge cutting movable template 22, the telescopic rod of the first air cylinder 312 is connected with the installation frame 313 through a screw or a bolt, all the blades 311 are driven to stretch simultaneously through the first air cylinder 312, the semi-finished plastic dropper is cut through the end part of the blade 311, the sharp corner of the plastic dropper is separated from the air port, the hollow structural shape of the sharp corner of the plastic dropper is ensured, and the dropper is prevented from being used due to the fact that the sharp corner is closed when the plastic dropper is cut off. The second cylinder 323 is arranged on the movable die holder 2 through a bolt, an expansion rod of the second cylinder 323 penetrates through the movable die holder 2 and is connected with the push plate 322 through a bolt, the push plate 322 is connected with the knife block 321 through a bolt, the knife block 321 is arranged in the mounting groove 221 to move in a telescopic way, the cambered surface 3211 is matched with the plastic burette, the influence on the appearance and the use of the plastic burette caused by uneven deformation of the pressure during edge cutting is prevented, the push plate 322 is driven to move through the second cylinder 323, the knife block 321 is ejected out simultaneously, the knife block 321 and the edge cutting groove 121 interact to separate the plastic burette from a semi-finished product, the plastic burette is easily connected with the edge cutting edge of the knife block 321 after being separated from the semi-finished product, the plastic burette is arranged on the knife block 321 to influence the edge cutting of the next semi-finished product, the plastic burette on the knife block 321 is separated and dropped through a push rod 41 on the ejection mechanism 4, and the ejection mechanism 4 is arranged on the edge cutting assembly 32, mainly connected with the push plate 322 and the cutter block 321.

Example 3

As shown in fig. 2, 3 and 4, the embodiment of the present application provides a plastic dropper blow mold, which in addition to the above technical features, further includes an ejection mechanism 4 including: the top block 42 is arranged at one end of the push rod 41, and the top block 42 is matched with the cambered surface 3211; the clutch mechanism 5 is arranged at the other end of the push rod 41; the buffer mechanism 6, the buffer mechanism 6 is placed in the middle of the push rod 41; the first spring 43 is sleeved outside the push rod 41 and is arranged in the buffer mechanism 6, and the push rod 41 is extended outwards by the first spring 43.

Further, the clutch mechanism 5 includes: the clutch cap 51, the clutch cap 51 includes the pole part 512, cap 511, the first clutch part 513; the second spring 52 is sleeved on the rod part 512, one end of the second spring 52 is abutted against the cap part 511, and the other end is provided with a limiting part 3221 arranged on the push plate 322; the locking hooks 53 are uniformly distributed around the axis of the first clutch part 513, the locking hooks 53 are hinged with the first clutch part 513, and a third spring 54 is arranged between the locking hooks 53 and the first clutch part 513; a second clutch part 44, wherein the second clutch part 44 corresponds to the first clutch part 513, the second clutch part 44 is installed on the push rod 41, and the second clutch part 44 is provided with a clutch groove 441 matched with the lock hook 53; and a release structure 7, wherein the release structure 7 releases the latch hook 53 from the clutch groove 441.

One end of the push rod 41 is welded or in threaded connection with the ejector block 42, the ejector block 42 is matched with the cambered surface 3211 to ensure the smoothness of the cambered surface 3211, the push rod 41 is pushed out through the first spring 43 to realize the ejection action of the ejection mechanism 4, the push rod 41 is locked through the clutch mechanism 5 to ensure that the ejector block 42 is matched with the cambered surface 3211 before the ejection action of the push rod 41, the first spring 43 acts on the push rod 41 to eject the push rod 41 through the separation of the clutch mechanism 5, the push rod 41 is slowly ejected through the buffer mechanism 6 to reduce the impact of the push rod 41 on the plastic dropper, and the damage to the plastic dropper is reduced.

The clutch cap 51 is movably mounted on the push plate 322, the second spring 52 is sleeved on the rod portion 512, the cap portion 511 of the clutch cap 51 extends to the outer side of the push plate 322 by the action of the second spring 52 on the cap portion 511 and the limiting portion 3221, the first clutch portion 513 is limited by the limiting portion 3221, the clutch cap 51 is prevented from popping up under the action of the second spring 52, the locking hook 53 on the first clutch portion 513 and the engaging groove 441 on the second clutch portion 44 are correspondingly locked, one end of the locking hook 53 is buckled on the engaging groove 441, the other end of the locking hook 53 is tightly buckled with the engaging groove 441 under the action of the second spring 52, the locking stability of the clutch mechanism 5 is ensured, the elastic potential energy of the second spring 52 is greater than that of the first spring 43, when the first clutch portion 513 and the second clutch portion 44 are tightened, the top block 42 is ensured to be matched with the cambered surface 1, the rod portion 512 is integrally connected with the cap portion 511, the structure 321stability of the clutch cap 51 is ensured, the first clutch part 513 is connected with the rod part 512 through a screw thread or a bolt, the second clutch part 44 is connected with the push rod 41 through a screw thread or a bolt, so that the stability of the mounting structure is ensured, the lock hook 53 is separated from the separation groove 3222 through the action of the separation mechanism on the lock hook 53, and the push rod 41 is ensured to be ejected out by the first spring 43.

Example 4

As shown in fig. 4 and 5, the present embodiment provides a plastic dropper blow mold, which includes, in addition to the above technical features, a separation structure 7 further including: the first movable grooves 71 are symmetrically distributed on two sides of the push rod 41; the second movable grooves 72 are arranged on two sides of the edge cutting knife block 321, and the second movable grooves 72 correspond to the first movable grooves 71; the separating piece 73 penetrates through the first movable groove 71 and the second movable groove 72, is arranged on the first movable groove 71 and the second movable groove 72 and moves, the separating piece 73 is provided with a touching piece 74, the touching piece 74 is arranged between the first clutch part 513 and the second clutch part 44, the touching piece 74 and the separating piece 73 are connected through a plurality of connecting pieces 75, the connecting pieces 75 penetrate through the second clutch part 44, and the push plate 322 is provided with a separating groove 3222 matched with the separating piece 73; and a fourth spring 76, wherein the fourth spring 76 is sleeved on the connecting piece 75, one end of the fourth spring 76 props against the separating piece 73, and the other end props against the second clutch part 44.

The first movable groove 71 and the second movable groove 72 are formed by milling, the first movable groove 71 and the second movable groove 72 correspond to each other, the separating member 73 is ensured to penetrate through the first movable groove 71 and the second movable groove 72, the separating member 73 is arranged in the first movable groove 71 and the second movable groove 72 and moves along the axial direction of the push rod 41, the second air cylinder 323 pushes the push plate 322 to move, when the push plate 322 is abutted against the trimming movable template 22, the separating member 73 is pressed to move towards the first clutch part 513, the separating member 73 is convenient to move through the separating groove 3222, the push plate 322 is prevented from being impacted with the separating member 73 when being abutted against the trimming movable template 22, the service life of the separating member 73 is prolonged, the contact member 74 acts on the latch hook 53, the latch hook 53 is pressed to separate the latch hook 53 from the clutch groove 441, the first clutch part 513 and the second clutch part 44 are unlocked, the push rod 321 is ensured to push out the plastic dropper from the cutter block 321 after the trimming of the plastic dropper is pushed out, the blanking of the plastic dropper is completed, the structural strength of the touch piece 74 and the separating piece 73 is improved through the connecting piece 75, when the push plate 322 is separated from the trimming movable die plate 22, the separating piece 73 is reset under the action of the fourth spring 76, the touch piece 74 is separated from the locking hook 53 at the moment, the locking hook 53 is reset under the action of the third spring 54, the first clutch part 513 and the second clutch part 44 are close to each other at the moment, and the locking hook 53 is matched with the clutch groove 441 to be locked again.

Example 5

As shown in fig. 3, the embodiment of the present application provides a plastic dropper blow mold, which in addition to the above technical features, further includes the buffer mechanism 6: the buffer shell 61 is arranged in the trimming cutter block 321, the buffer shell 61 is provided with a buffer cavity 611, viscous fluid is filled in the buffer cavity 611, the push rod 41 penetrates through the buffer shell 61, and sealing elements 63 matched with the push rod 41 are arranged at two ends of the buffer shell 61; and the buffer block 62 is arranged on the push rod 41 and is arranged in the buffer cavity 611, one end of the first spring 43 is abutted against the buffer block 62, and the other end of the first spring 43 is abutted against the inner wall surface of the buffer shell 61.

The buffer shell 61 is connected in the cutter block 321 through a screw or a bolt, so that the buffer shell 61 is convenient to mount and stable in structure, the buffer block 62 is mounted in the buffer cavity 611, viscous fluid is filled in the buffer cavity 611, the viscous fluid adopts water or damping oil and the like, the first spring 43 is mounted on one side close to the second clutch part 44, one end of the first spring 43 abuts against the buffer block 62, the other end of the first spring 43 abuts against the inner wall surface of the buffer shell 61, the buffer block 62 is placed in the buffer cavity 611, the push rod 41 is moved and pushed out of the ejector block 42 under the action of the first spring 43, the buffer performance of the buffer block 62 is improved through the viscous fluid, the buffer block 62 is moved slowly, the impact of the ejector block 42 on the plastic dropper is reduced, the sealing effect of the buffer cavity 611 is improved through the sealing piece 63, and the sealing performance of the push rod 41 during telescopic movement is ensured. ,

example 5

The embodiment of the application also provides a control method of the plastic dropper blow mold, which comprises the following steps: s1: processing a semi-finished product of the plastic dropper through a molding cavity between the blow molding fixed die plate 11 and the blow molding movable die plate 21;

s2: placing the semi-finished product of the plastic dropper at a position corresponding to the mounting groove 221, combining the trimming fixed die plate 12 and the trimming movable die plate 22, pressing the semi-finished product of the plastic dropper through the boss 222, driving all the blades 311 to move through the first air cylinder 312 to cut off the tip of the plastic dropper and the semi-finished product of the plastic dropper, and driving all the blades 311 to reset through the first air cylinder 312;

s3; the push plate 322 is driven to move by the second air cylinder 323, and the plastic dropper is separated from the flash by the trimming cutter block 321 and the trimming groove 121;

s4: the plastic dropper is ejected out by the ejection mechanism 4 and separated from the trimming cutter block 321, an ejection gap 122 is arranged between the trimming fixed die plate 12 and the fixed die base 1, the plastic dropper falls from the ejection gap 122, and then the push plate 322 is reset by the driving of the second air cylinder 323.

Further, the ejection step of the ejection mechanism 4 in step S4 is as follows: t1: when the second cylinder 323 pushes the trimming cutter block 321 to eject, the locking hook 53 is matched with the clutch groove 441, so that the first clutch part 513 is connected with the second clutch part 44, and the top block 42 is matched with the cambered surface 3211;

t2: the second air cylinder 323 drives the push plate 322 to continuously eject, so that the separating piece 73 is abutted against the trimming movable template 22, the separating piece 73 is pressed to move towards the first clutch part 513, the abutting piece 74 is abutted against the locking hook 53 and applies pressure to the locking hook 53, so that the locking hook 53 is separated from the clutch groove 441, and the first spring 43 acts on the buffer block 62 to push the push rod 41 to eject the ejector block 42;

t3: after the ejection is completed, the second cylinder 323 is reset, so that the push plate 322 continuously moves towards the movable mold base 2, when the clutch cap 51 is abutted against and pressed by the movable mold base 2, the first clutch part 513 moves towards the second clutch part 44, the lock hook 53 is matched with the clutch groove 441, the first clutch part 513 is connected with the second clutch part 44, and the ejection mechanism 4 is ejected circularly.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.