CN212021553U - Rotary demolding mechanism - Google Patents

Rotary demolding mechanism Download PDF

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Publication number
CN212021553U
CN212021553U CN202020641181.7U CN202020641181U CN212021553U CN 212021553 U CN212021553 U CN 212021553U CN 202020641181 U CN202020641181 U CN 202020641181U CN 212021553 U CN212021553 U CN 212021553U
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Prior art keywords
pole
board
gear
plate
lower extreme
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CN202020641181.7U
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Chinese (zh)
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仇湛荣
杨炳勇
杨柳玲
陈日琪
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Foshan City Shunde District Zhanrong Mould Co ltd
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Foshan City Shunde District Zhanrong Mould Co ltd
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Abstract

The utility model discloses a rotatory demoulding mechanism, including die cavity board, material returned board, back template and back mould core, the material returned board be located between die cavity board and the back template, back mould core lower extreme normal running fit on the back template, back mould core upper end stretch into in the material returned board, it still includes first pole and second pole, first pole upper end establish on the die cavity board, first pole lower extreme sliding fit in the back template from top to bottom, second pole upper end normal running fit in the material returned board, back mould core lower extreme be connected with first pole lower extreme and second pole lower extreme transmission respectively, the linear motion of first pole convert the rotary motion of back mould core when die sinking or compound die, the rotatory material returned board that drives of second pole slide in the back mould core upper end from top to bottom, the utility model provides a long service life's rotatory demoulding mechanism.

Description

Rotary demolding mechanism
Technical Field
The utility model relates to an injection moulding field especially relates to a rotatory demoulding mechanism.
Background
For demolding of some injection molded articles of special shape, such as threaded articles, it is often necessary to employ rotary demolding. According to the prior art, the traditional rotary demoulding mechanism realizes power transmission on a driving shaft by using a hydraulic transmission motor or an electromechanical transmission motor, and then pushes and retreats a product by using the spring elasticity of a rear mould. But along with the long-time compression of the spring, the elasticity of the spring is reduced to different degrees, and even the spring is aged and broken, so that the service life of the die is short.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the rotary demolding mechanism is long in service life.
The utility model adopts the technical proposal that: the utility model provides a rotatory demoulding mechanism, includes die cavity board, material returned board, back template and back die core, the material returned board be located between die cavity board and the back template, back die core lower extreme normal running fit on the back template, back die core upper end stretch into in the material returned board, it still includes first pole and second pole, first pole upper end establish on the die cavity board, first pole lower extreme sliding fit in the back template from top to bottom, second pole upper end normal running fit in the material returned board, back die core lower extreme be connected with first pole lower extreme and second pole lower extreme transmission respectively, the linear motion of first pole convert the rotary motion of back die core when die sinking or compound die, the rotatory drive material returned board of second pole slip back die core upper end from top to bottom.
After the structure more than adopting, compared with the prior art, the utility model has the following advantage: the cavity plate, be equipped with the die cavity that is used for the shaping work piece between flitch and the back mould core, back mould core upper end normal running fit is in the work piece, establish first pole and second pole, the cavity plate drives first pole up motion during the die sinking, first pole drives back mould core rotary motion, simultaneously because back mould core is connected with the second pole transmission, back mould core rotary motion drives the second pole rotatory, and because second pole upper end normal running fit is at the flitch, the second pole only rotates, can be ejecting the flitch, the flitch drives the work piece and breaks away from back mould core together, thereby realize the synchronous reciprocal function of flitch and back mould core through opening and shutting of injection molding machine, realize back mould core autogiration drawing of patterns without additional transmission system, thereby reduce the cycle of moulding plastics, long service life simultaneously.
As preferred, it still includes first cover, second cover, driving gear and driven gear, first cover establish in the die block board of back and first set normal running fit in the die block board of back, the driving gear cover establish at first sheathe in, first pole lower extreme and first cover close soon, driving gear and back die core meshing, the second cover establish in the stripper plate, driven gear cover establish at second pole lower extreme, second pole upper end and second cover close soon, driven gear and back die core meshing, simple structure closes soon through first cover and first pole, second pole and second cover close soon, realizes that first pole drives the driving gear rotatory, and the second pole drives stripper plate drawing of patterns and die sinking.
Preferably, the first rod and the second rod are both rifling threaded rods, and the first sleeve and the second sleeve are rifling nuts, so that the transmission is reliable, and the service life of the die is longer.
Preferably, the rear template further comprises an auxiliary gear, the auxiliary gear is arranged in the rear template and meshed with the driving gear, and therefore the driving gear is more stable in transmission.
Preferably, the driven gear, the rear mold core, the driving gear and the auxiliary gear are sequentially distributed in the rear mold plate from left to right, so that arrangement is convenient, and the driving gear sequentially transmits rotary motion to the rear mold core and the driven gear.
Preferably, the rear die plate comprises an auxiliary supporting plate, a gear plate and a rear die core plate, the auxiliary supporting plate, the gear plate and the rear die core plate are sequentially distributed from top to bottom, the stripper plate is located on the upper surface of the auxiliary supporting plate, the driving gear and the driven gear are in rotational fit in the gear plate, the driving gear and the driven gear are respectively provided with a gear shaft, the upper end and the lower end of the gear shaft are respectively in rotational fit on the auxiliary supporting plate and the rear die core plate, the gear shaft is used for transmitting the rotation of the gear, and the structure is simple.
Preferably, the gear shaft is respectively and rotatably matched on the auxiliary supporting plate and the rear core plate through bearings, and the bearings are respectively arranged on the lower surface of the auxiliary supporting plate and the upper surface of the rear core plate, so that the gear shaft is convenient to mount and dismount.
Preferably, the upper ends of the first sleeve and the second sleeve penetrate through the stripper plate upwards, and the upper surfaces of the first sleeve and the second sleeve are flush with the upper surface of the stripper plate when the mold is closed, so that the first sleeve and the second sleeve can reset when the mold is closed.
Drawings
Fig. 1 is a front sectional view of a mold assembly of a rotary demolding mechanism of the present invention;
fig. 2 is a front sectional view of the mold opening of the rotary demolding mechanism of the present invention.
The die cavity plate forming machine comprises a die cavity plate 1, a die cavity plate 2, a stripper plate 3, a rear die plate 4, a rear die core plate 5, a rear die core 6, a first rod 7, a first sleeve 8, a second rod 9, a second sleeve 10, a driving gear 11, a driven gear 12, an auxiliary gear 13, an auxiliary supporting plate 14, a gear plate 15 and a workpiece.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in the figure, the utility model provides a rotary demoulding mechanism, which comprises a cavity plate 1, a stripper plate 2, a rear mould plate 3 and a rear mould core 5, wherein the stripper plate 2 is positioned between the cavity plate 1 and the rear mould plate 3, the lower end of the rear mould core 5 is rotationally matched on the rear mould plate 3, the upper end of the rear mould core 5 extends into the stripper plate 2, the rotary demoulding mechanism also comprises a first rod 6 and a second rod 8, the upper end of the first rod 6 is arranged on the cavity plate 1, the lower end of the first rod 6 is vertically and slidably matched in the rear mould plate 3, the upper end of the second rod 8 is rotationally matched in the stripper plate 2, the lower end of the rear mould core 5 is respectively connected with the lower ends of the first rod 6 and the second rod 8 in a transmission way, the linear motion of the first rod 6 is converted into the rotary motion of the rear mould core 5 when the mould is opened or closed, the second rod 8 rotates to drive the stripper plate 2 to vertically slide on the rear mould core 5, the utility model has the advantages that die cavity board 1, be equipped with the die cavity that is used for shaping work piece 15 between material returned board 2 and the back mould core 5, 5 upper end normal running fit of back mould core are in work piece 15, establish first pole 6 and second pole 8, die cavity board 1 drives first pole 6 up-movement in the time of the die sinking, first pole 6 drives 5 rotary motion of back mould core, simultaneously because back mould core 5 is connected with the transmission of second pole 8, it is rotatory that back mould core 5 is rotatory to drive second pole 8, and because 8 upper end normal running fit of second pole are at material returned board 2, 8 rotations of second pole, can be ejecting material returned board 2, material returned board 2 drives work piece 15 and breaks away from back mould core 5 together, thereby realize the synchronous reciprocal function of material returned board 2 and back mould core 5 through opening and shutting of injection molding machine, realize the 5 automatic rotary demoulding of back mould core with plus transmission system, thereby reduce the cycle of moulding plastics, long service life simultaneously.
It still includes first set 7, second cover 9, driving gear 10 and driven gear 11, first set 7 establish in back template 3 and first set 7 normal running fit in back template 3, driving gear 10 cover establish on first set 7, 6 lower extremes of first pole and first set 7 close soon, driving gear 10 and the meshing of back mould core 5, second cover 9 establish in stripper 2, 11 covers of driven gear establish at second pole 8 lower extreme, 8 upper ends of second pole close with second cover 9 soon, driven gear 11 and the meshing of back mould core 5, simple structure closes with first pole 6 soon through first set 7, second pole 8 closes with second cover 9 soon, realizes that first pole 6 drives the driving gear 10 rotatory, and second pole 8 drives stripper 2 drawing of patterns and die sinking.
The first rod 6 and the second rod 8 are both rifling screw rods, the first sleeve 7 and the second sleeve 9 are rifling nuts, transmission is reliable, and the service life of the die is longer.
The rear template mechanism further comprises an auxiliary gear 12, wherein the auxiliary gear 12 is arranged in the rear template 3, and the auxiliary gear 12 is meshed with the driving gear 10, so that the driving gear 10 is more stable in transmission.
Driven gear 11, back mold core 5, driving gear 10 and auxiliary gear 12 distribute in back template 3 from left to right in proper order, be convenient for set up, driving gear 10 passes rotary motion to back mold core 5 and driven gear 11 in proper order.
Rear template 3 include auxiliary stay board 13, gear plate 14 and rear mould core board 4, auxiliary stay board 13, gear plate 14 and rear mould core board 4 from the top down distribute in proper order, stripper plate 2 be located auxiliary stay board 13's upper surface, driving gear 10 and the equal normal running fit of driven gear 11 in gear plate 14, driving gear 10 and driven gear 11 all be equipped with the gear shaft, the gear shaft divide equally and do not normal running fit on auxiliary stay board 13 and rear mould core board 4 in both ends from top to bottom, transmit simple structure through the rotation of gear shaft to the gear.
The gear shaft is respectively matched on the auxiliary supporting plate 13 and the rear core plate 4 in a rotating way through bearings, and the bearings are respectively arranged on the lower surface of the auxiliary supporting plate 13 and the upper surface of the rear core plate 4, so that the gear shaft is convenient to mount and dismount.
The upper ends of the first sleeve 7 and the second sleeve 9 are upwards penetrated through the stripper plate 2, and the upper surfaces of the first sleeve 7 and the second sleeve 9 are flush with the upper surface of the stripper plate 2 during die assembly, so that resetting is facilitated during die assembly.
Specifically, the principle of the utility model is that a cavity for molding a workpiece 15 is arranged between a cavity plate 1, a stripper plate 2 and a rear mold core 5, the upper end of the rear mold core 5 is rotationally matched in the workpiece 15 and is provided with a first rod 6 and a second rod 8, the cavity plate 1 drives the first rod 6 to move upwards during mold opening, the first rod 6 drives the rear mold core 5 to rotate, meanwhile, the rear mold core 5 rotates to drive the second rod 8 to rotate due to the transmission connection of the rear mold core 5 and the second rod 8, and the second rod 8 rotates only due to the upper end of the second rod 8 being rotationally matched in the stripper plate 2, so that the stripper plate 2 can be ejected out, the stripper plate 2 drives the workpiece 15 to be separated from the rear mold core 5 together, the synchronous reciprocating function of the stripper plate 2 and the rear mold core 5 is realized by opening and closing of an injection molding machine, the automatic rotary demolding of the rear mold core 5 is realized without an additional transmission system, thereby reducing the injection molding period (the time of a traditional rotary, 16 seconds for rotary demoulding by the mechanism), and meanwhile, the service life is long, and the rear mould core 5 integrally rotates to be convenient for being separated from the workpiece 15.
The transmission among the first rod 6, the rear mold core 5 and the second rod 8 is gear transmission.
While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims (8)

1. The utility model provides a rotatory demoulding mechanism, includes die cavity board (1), material returned board (2), back template (3) and back mold core (5), material returned board (2) be located between die cavity board (1) and back template (3), back mold core (5) lower extreme normal running fit on back template (3), back mold core (5) upper end stretch into in material returned board (2), its characterized in that: it still includes first pole (6) and second pole (8), first pole (6) upper end establish on die cavity board (1), first pole (6) lower extreme sliding fit in back template (3) from top to bottom, second pole (8) upper end normal running fit in material returned board (2), back mold core (5) lower extreme be connected with first pole (6) lower extreme and second pole (8) lower extreme transmission respectively, the linear motion of first pole (6) convert the rotary motion of back mold core (5) when the die sinking or compound die, second pole (8) rotatory drive material returned board (2) slide back mold core (5) upper end from top to bottom.
2. A rotary ejector mechanism according to claim 1, characterized in that: it still includes first set (7), second cover (9), driving gear (10) and driven gear (11), first set (7) establish in back template (3) and first set (7) normal running fit in back template (3), driving gear (10) cover establish on first set (7), first pole (6) lower extreme and first set (7) close soon, driving gear (10) and back mould core (5) meshing, second cover (9) establish in material returning plate (2), driven gear (11) cover establish second pole (8) lower extreme, second pole (8) upper end and second cover (9) close soon, driven gear (11) and back mould core (5) meshing.
3. A rotary ejector mechanism according to claim 2, characterized in that: the first rod (6) and the second rod (8) are both rifling screw rods, and the first sleeve (7) and the second sleeve (9) are rifling nuts.
4. A rotary ejector mechanism according to claim 2, characterized in that: the novel rear template is characterized by further comprising an auxiliary gear (12), wherein the auxiliary gear (12) is arranged in the rear template (3), and the auxiliary gear (12) is meshed with the driving gear (10).
5. A rotary ejector mechanism according to claim 4, characterized in that: the driven gear (11), the rear die core (5), the driving gear (10) and the auxiliary gear (12) are sequentially distributed in the rear die plate (3) from left to right.
6. A rotary ejector mechanism according to claim 2, characterized in that: rear template (3) include auxiliary stay board (13), toothed plate (14) and rear mould core board (4), auxiliary stay board (13), toothed plate (14) and rear mould core board (4) from the top down distribute in proper order, material returning plate (2) be located the upper surface of auxiliary stay board (13), equal normal running fit of driving gear (10) and driven gear (11) in toothed plate (14), driving gear (10) and driven gear (11) all be equipped with the gear shaft, the gear shaft about both ends equally divide do not normal running fit on auxiliary stay board (13) and rear mould core board (4).
7. A rotary ejector mechanism according to claim 6, characterized in that: the gear shaft is respectively matched on the auxiliary supporting plate (13) and the rear core plate (4) in a rotating way through a bearing.
8. A rotary ejector mechanism according to claim 2, characterized in that: the stripper plate structure is characterized in that the upper end of the first sleeve (7) and the upper end of the second sleeve (9) both upwards penetrate through the stripper plate (2), and the upper surfaces of the first sleeve (7) and the second sleeve (9) are flush with the upper surface of the stripper plate (2) during die assembly.
CN202020641181.7U 2020-04-23 2020-04-23 Rotary demolding mechanism Active CN212021553U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020641181.7U CN212021553U (en) 2020-04-23 2020-04-23 Rotary demolding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020641181.7U CN212021553U (en) 2020-04-23 2020-04-23 Rotary demolding mechanism

Publications (1)

Publication Number Publication Date
CN212021553U true CN212021553U (en) 2020-11-27

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Application Number Title Priority Date Filing Date
CN202020641181.7U Active CN212021553U (en) 2020-04-23 2020-04-23 Rotary demolding mechanism

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112895301A (en) * 2021-01-19 2021-06-04 金华馨菲科技有限公司 Injection molding and demolding processing method for water dispenser accessories

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112895301A (en) * 2021-01-19 2021-06-04 金华馨菲科技有限公司 Injection molding and demolding processing method for water dispenser accessories
CN112895301B (en) * 2021-01-19 2022-04-12 金华馨菲科技有限公司 Injection molding and demolding processing method for water dispenser accessories

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