CN213107985U

CN213107985U - Arc core-pulling and tooth-twisting integral ejection die

Info

Publication number: CN213107985U
Application number: CN202021150078.9U
Authority: CN
Inventors: 卞传涛
Original assignee: Kunshan Dingqing Precision Mould Co ltd
Current assignee: Kunshan Dingqing Precision Mould Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-05-04
Anticipated expiration: 2030-06-19

Abstract

The utility model belongs to the technical field of injection mold, especially, be an arc loose core hank tooth whole ejection die, including the die holder, die holder one side is equipped with the driving machine case, driving machine case output end fixedly connected with drive gear, driving machine case top both sides are all installed the line tooth and are taken out the mechanism, driving machine case one side bottom is installed the adjustment mechanism, telescopic link one end fixedly connected with double-sided rack, the die holder internally mounted has two arc mechanisms of loosing core, slider one side fixedly connected with core; the screw thread head is located fixed pipe inside and receives the screw thread influence, and to the inboard shrink, and then makes screw thread head and work piece break away from, and the screw thread effect that double-sided rack received through the telescopic link moves forward, drives two third drive gear back of the body motion mutually, accomplishes and looses the core, can reduce the use of driving piece through the device, reduces the mould because the actual volume that a plurality of drive arrangement caused increases the condition.

Description

Arc core-pulling and tooth-twisting integral ejection die

Technical Field

The utility model belongs to the technical field of injection mold, concretely relates to whole ejecting mould of hank tooth is loosed core to circular arc.

Background

The plastic injection mold is a tool for producing plastic products and has wide application. In injection molding of plastic products, this makes demolding difficult, since some plastic products have internal threads and arcuate holes.

The Chinese patent discloses an arc core-pulling and threading integral ejection die, the disclosure number of which is (CN210190417U), and the technology of the die enables a gear tooth core to rotate and move outwards to be separated from an inner thread of a product; the hydro-cylinder passes through slider seat, pull rod, the outside swing of curved core slider drive curved core for the curved core breaks away from the arc wall of product, has the reliable and stable advantage of action, but, two driving pieces set up on same mould, and the opposite position of two driving pieces, must increase the volume of mould this moment, and the driving piece lies in the influence that both sides also caused the transportation of whole mould simultaneously.

Therefore, the person skilled in the art provides an integral ejection mold for the arc loose core twisted teeth to solve the problems mentioned in the background art.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a whole ejecting mould of hank tooth is loosed core to circular arc has the characteristics that single driving piece takes off the tooth and looses the core.

In order to achieve the above object, the utility model provides a following technical scheme: an arc core-pulling and threading integral ejection die comprises a lower die holder, wherein two symmetrically distributed cavities are formed in the upper end face of the lower die holder, two sliding blocks are connected to the upper end face of the lower die holder in a sliding manner, a driving case is arranged on one side of the lower die holder, a driving gear is fixedly connected to the output end of the driving case, thread taking-out mechanisms are mounted on two sides of the top of the driving case, two fixed guide pipes matched with the thread taking-out mechanisms are fixedly connected to the upper end face of the lower die holder, the fixed guide pipes are located at one end of the cavities, each thread taking-out mechanism comprises a first transmission gear rotatably connected to the side face of the driving case and a storage rod fixedly connected to one end of the first transmission gear, the first transmission gear is meshed with the driving gear, a storage chute is formed in one end of the storage rod, and a, one end of the fixed rod is fixedly connected with a threaded head, the threaded head is screwed at one end of the fixed guide pipe and is positioned in the cavity, an adjusting mechanism is arranged at the bottom of one side of the driving case and comprises a second transmission gear which is rotatably connected to the bottom of the side surface of the driving case and a threaded cylinder which is fixedly connected to one end of the second transmission gear, a steering gear is arranged between the driving gear and the second transmission gear, two sides of the steering gear are respectively meshed with the driving gear and the second transmission gear, a telescopic rod is screwed at one end of the threaded cylinder, one end of the telescopic rod is fixedly connected with a double-sided rack, two arc-shaped core-pulling mechanisms are arranged in the lower die holder and comprise a third transmission gear and an L rod which is fixedly connected to the upper end surface of the third transmission gear, the upper end face of the L-shaped rod is fixedly connected with the sliding block, one side of the sliding block is fixedly connected with a core, the core is located at one end, away from the fixed guide pipe, of the cavity, and the double-sided rack is meshed between the two third transmission gears.

Preferably, the bottom of the side surface of the drive case is fixedly connected with an extension plate, and the adjusting mechanism is installed on the side surface of the extension plate.

Preferably, one end of the fixed guide pipe, which is far away from the drive case, is provided with a receiving threaded part, and the threaded head is in threaded connection with the receiving threaded part.

Preferably, the upper end face of the fixing rod is fixedly connected with a limiting rib, and the limiting rib is connected to the inside of the storage chute in a sliding mode.

Preferably, the length of the fixing rod is greater than the length of the screw head.

Preferably, the adjusting mechanism is located at the center between the two arc-shaped core-pulling mechanisms.

Compared with the prior art, the beneficial effects of the utility model are that:

the drive machine case drives the drive gear to rotate, the first drive gear rotates at the moment, thereby driving the storage rod to rotate, the storage rod drives the thread head to rotate through the fixed rod, the thread head is located inside the fixed guide pipe, when the thread head rotates, because the fixed guide pipe is fixed on the die holder, the thread head receives the thread influence at the moment, contract towards the inner side, and then make the thread head break away from the workpiece, when drive gear rotates, make the double-sided rack pass through the screw action that the telescopic link received, move forward, and then drive two third drive gear back of the body motions, drive the slider through the L pole and rotate this moment, and then make two cores accomplish to the both sides motion and loose core, can reduce the use of driving piece through the device, and then reduce the actual volume increase's that the mould caused because of a.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the middle driving chassis of the present invention;

FIG. 3 is a perspective view of the middle driving housing and the arc core-pulling mechanism of the present invention;

FIG. 4 is a schematic top sectional view of the catheter of the present invention;

fig. 5 is a schematic top sectional view of the middle threaded cylinder of the present invention.

In the figure: 1. a lower die holder; 11. fixing the catheter; 111. receiving the threaded portion; 2. a drive chassis; 21. a drive gear; 22. a steering gear; 23. an extension plate; 3. a thread take-out mechanism; 31. a first drive gear; 32. a storage rod; 33. a storage chute; 34. fixing the rod; 35. limiting ribs; 36. a screw head; 4. an adjustment mechanism; 41. a second transmission gear; 42. a threaded barrel; 43. a telescopic rod; 44. a double-sided rack; 5. a core; 6. an arc-shaped core-pulling mechanism; 61. a third transmission gear; 62. an L-bar; 63. a slider; 7. a mold cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: an arc core-pulling and threading integral ejection die comprises a lower die holder 1, two symmetrically distributed cavities 7 are formed in the upper end face of the lower die holder 1, two sliding blocks 63 are connected to the upper end face of the lower die holder 1 in a sliding manner, a driving case 2 is arranged on one side of the lower die holder 1, a driving gear 21 is fixedly connected to the output end of the driving case 2, thread taking-out mechanisms 3 are mounted on two sides of the top of the driving case 2, two fixing guide pipes 11 matched with the thread taking-out mechanisms 3 are fixedly connected to the upper end face of the lower die holder 1, the fixing guide pipes 11 are located at one ends of the cavities 7, each thread taking-out mechanism 3 comprises a first transmission gear 31 rotatably connected to the side face of the driving case 2 and a storage rod 32 fixedly connected to one end of the first transmission gear 31, the first transmission gear 31 is meshed with the driving gear 21, a storage chute 33 is, one end of the fixed rod 34 is fixedly connected with a threaded head 36, the threaded head 36 is screwed at one end of the fixed guide tube 11, the threaded head 36 is positioned inside the cavity 7, the bottom of one side of the driving case 2 is provided with an adjusting mechanism 4, the adjusting mechanism 4 comprises a second transmission gear 41 which is rotatably connected at the bottom of the side surface of the driving case 2 and a threaded cylinder 42 which is fixedly connected at one end of the second transmission gear 41, a steering gear 22 is arranged between the driving gear 21 and the second transmission gear 41, two sides of the steering gear 22 are respectively meshed with the driving gear 21 and the second transmission gear 41, one end of the threaded cylinder 42 is screwed with a telescopic rod 43, one end of the telescopic rod 43 is fixedly connected with a double-sided rack 44, two arc core-pulling mechanisms 6 are arranged inside the lower die holder 1, each arc core-pulling mechanism 6 comprises a third transmission gear 61 and an L rod 62, one side of the sliding block 63 is fixedly connected with a mold core 5, the mold core 5 is positioned at one end of the mold cavity 7 far away from the fixed guide pipe 11, and a double-sided rack 44 is meshed between the two third transmission gears 61.

In this embodiment: the injection molding liquid is injected into the cavity 7 for molding, when the mold is opened, only the driving case 2 needs to be opened, the driving case 2 drives the driving gear 21 to rotate, at the moment, the first transmission gear 31 rotates to drive the containing rod 32 to rotate, the containing rod 32 drives the threaded head 36 to rotate through the fixed rod 34, the threaded head 36 is positioned inside the fixed guide pipe 11, when the threaded head 36 rotates, as the fixed guide pipe 11 is fixed on the lower die base 1, at the moment, the threaded head 36 is influenced by threads and shrinks inwards, and further the threaded head 36 is separated from a workpiece, when the driving gear 21 rotates, the second transmission gear 41 is driven to rotate through the steering gear 22, the steering gear 22 enables the second transmission gear 41 to rotate in the opposite direction to the first transmission gear 31, at the moment, the threaded barrel 42 rotates, as the telescopic rod 43 is in threaded connection with the threaded barrel 42, and the double-sided rack 44 is meshed, the unable rotation of two-sided rack 44 this moment, and then make two-sided rack 44 pass through the screw thread effect that telescopic link 43 received, and the forward motion, and then drive two third drive gear 61 back of the body motions, drive slider 63 through L pole 62 this moment and rotate, and then make two cores 5 to the both sides motion completion loose core, can reduce the use of driving piece through the device, and then reduce the mould because the actual volume that a plurality of drive arrangement caused increases the condition.

In fig. 2-3: the extension plate 23 is fixedly connected to the bottom of the side face of the drive case 2, the adjusting mechanism 4 is installed on the side face of the extension plate 23, the area of the side face of the drive case 2 can be increased through the extension plate 23, and then the adjusting mechanism 4 is located below the drive case 2, so that the work of the thread taking-out mechanism 3 cannot be influenced.

In fig. 4: the end of the fixing pipe 11 away from the driving cabinet 2 is opened with a receiving screw portion 111, the screw head 36 is screwed with the receiving screw portion 111, and the receiving screw portion 111 is mainly used for matching with the screw head 36, so that the screw head 36 slides back and forth under the influence of the screw.

In fig. 2 and 4: the upper end face of the fixing rod 34 is fixedly connected with a limiting rib 35, the limiting rib 35 is connected inside the containing sliding groove 33 in a sliding mode, and the fixing rod 34 and the containing sliding groove 33 cannot rotate relatively through the limiting rib 35.

In fig. 4: the length of dead lever 34 is greater than the length of screw thread head 36, because screw thread head 36 need be located inside cavity 7, therefore the length of dead lever 34 is greater than screw thread head 36 length, can guarantee that screw thread head 36 satisfies the user demand when, dead lever 34 still can not follow and accomodate the slippage in the spout 33.

In fig. 3: the adjusting mechanism 4 is located at the center between the two arc core-pulling mechanisms 6, and as the adjusting mechanism 4 needs to drive the two arc core-pulling mechanisms 6 to rotate through the double-sided rack 44, the setting versions of the whole device are symmetrically distributed, the adjusting mechanism 4 needs to be located at the center between the two arc core-pulling mechanisms 6.

The utility model discloses a theory of operation and use flow: the injection molding liquid is injected into the cavity 7 for molding, when the mold is opened, only the driving case 2 needs to be opened, the driving case 2 drives the driving gear 21 to rotate, at the moment, the first transmission gear 31 rotates to drive the containing rod 32 to rotate, the containing rod 32 drives the threaded head 36 to rotate through the fixed rod 34, the threaded head 36 is positioned inside the fixed guide pipe 11, when the threaded head 36 rotates, as the fixed guide pipe 11 is fixed on the lower die base 1, at the moment, the threaded head 36 is influenced by threads and shrinks inwards, and further the threaded head 36 is separated from a workpiece, when the driving gear 21 rotates, the second transmission gear 41 is driven to rotate through the steering gear 22, the steering gear 22 enables the second transmission gear 41 and the first transmission gear 31 to rotate in opposite directions, at the moment, the threaded barrel 42 rotates, as the telescopic rod 43 is in threaded connection with the threaded barrel 42, and the double-sided rack 44 is meshed, the unable rotation of two-sided rack 44 this moment, and then make two-sided rack 44 pass through the screw thread effect that telescopic link 43 received, and the forward motion, and then drive two third drive gear 61 back of the body motions, drive slider 63 through L pole 62 this moment and rotate, and then make two cores 5 to the both sides motion completion loose core, can reduce the use of driving piece through the device, and then reduce the mould because the actual volume that a plurality of drive arrangement caused increases the condition.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a whole ejecting mould of circular arc loose core hank tooth, includes die holder (1), die cavity (7) of two symmetric distributions are seted up to die holder (1) up end, die holder (1) up end sliding connection has two sliders (63), its characterized in that: a driving case (2) is arranged on one side of the lower die holder (1), a driving gear (21) is fixedly connected to the output end of the driving case (2), the threaded tooth taking-out mechanisms (3) are mounted on two sides of the top of the driving case (2), two fixed guide pipes (11) matched with the threaded tooth taking-out mechanisms (3) are fixedly connected to the upper end face of the lower die holder (1), and the fixed guide pipes (11) are located at one end of the cavity (7);

the thread taking-out mechanism (3) comprises a first transmission gear (31) rotatably connected to the side face of the driving case (2) and a storage rod (32) fixedly connected to one end of the first transmission gear (31), the first transmission gear (31) is meshed with the driving gear (21), one end of the storage rod (32) is provided with a storage chute (33), a fixed rod (34) is connected in the storage chute (33) in a sliding manner, one end of the fixed rod (34) is fixedly connected with a threaded head (36), the threaded head (36) is screwed to one end of the fixed guide pipe (11), and the threaded head (36) is located inside the cavity (7);

an adjusting mechanism (4) is installed at the bottom of one side of the driving case (2), the adjusting mechanism (4) comprises a second transmission gear (41) which is rotatably connected to the bottom of the side face of the driving case (2) and a threaded cylinder (42) which is fixedly connected to one end of the second transmission gear (41), a steering gear (22) is arranged between the driving gear (21) and the second transmission gear (41), two sides of the steering gear (22) are respectively meshed with the driving gear (21) and the second transmission gear (41), an expansion rod (43) is screwed at one end of the threaded cylinder (42), and a double-sided rack (44) is fixedly connected at one end of the expansion rod (43);

the die comprises a lower die holder (1), and is characterized in that two arc-shaped core-pulling mechanisms (6) are mounted inside the lower die holder (1), each arc-shaped core-pulling mechanism (6) comprises a third transmission gear (61) and an L rod (62) fixedly connected to the upper end face of the third transmission gear (61), the upper end face of the L rod (62) is fixedly connected with a sliding block (63), a core (5) is fixedly connected to one side of the sliding block (63), the core (5) is located at one end, away from the fixed guide pipe (11), of the cavity (7), and the double-sided rack (44) is meshed between the third transmission gears (61).

2. The integral ejection die for the arc loose core and the twisted tooth as claimed in claim 1, characterized in that: the bottom of the side face of the driving case (2) is fixedly connected with an extension plate (23), and the adjusting mechanism (4) is installed on the side face of the extension plate (23).

3. The integral ejection die for the arc loose core and the twisted tooth as claimed in claim 1, characterized in that: one end, far away from the driving case (2), of the fixed guide pipe (11) is provided with a containing threaded part (111), and the threaded head (36) is in threaded connection with the containing threaded part (111).

4. The integral ejection die for the arc loose core and the twisted tooth as claimed in claim 1, characterized in that: dead lever (34) up end fixedly connected with spacing muscle (35), spacing muscle (35) sliding connection be in accomodate the inside of spout (33).

5. The integral ejection die for the arc loose core and the twisted tooth as claimed in claim 1, characterized in that: the length of the fixing rod (34) is greater than the length of the screw head (36).

6. The integral ejection die for the arc loose core and the twisted tooth as claimed in claim 1, characterized in that: the adjusting mechanism (4) is positioned in the center between the two arc-shaped core pulling mechanisms (6).