CN101844400B - Driving mechanism of stretching head - Google Patents
Driving mechanism of stretching head Download PDFInfo
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- CN101844400B CN101844400B CN2010101769060A CN201010176906A CN101844400B CN 101844400 B CN101844400 B CN 101844400B CN 2010101769060 A CN2010101769060 A CN 2010101769060A CN 201010176906 A CN201010176906 A CN 201010176906A CN 101844400 B CN101844400 B CN 101844400B
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- screw
- driving mechanism
- screw mandrel
- stretching head
- bearing
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Abstract
The invention discloses a driving mechanism of a stretching head, comprising a servo motor (1), a screw rod (9), a screw nut (5) and a supporting frame (10), a rotating shaft of the servo motor (1) is connected with the screw rod (9) by a coupler (2), the screw nut (5) is barreled on the screw rod (9), the driving mechanism is characterized in that: the supporting frame (10) is provided with a sliding groove (13), a guide bearing (7) is arranged on the screw nut (5) and is arranged in the sliding groove (13), the screw nut (5) is connected with a guide pillar (8) which is connected with a stretching adaptor (12). The greatest advantage of the driving mechanism is that the guide bearing is sliding up and down under the restraint of the sliding groove and the operating efficiency of the driving mechanism is increased by utilizing the rolling friction theory.
Description
Technical field
The present invention relates to the driving mechanism of drawing mechanism on the plastic molding press, particularly relate to the mechanically driving mechanism of stretching head of plastic cup, bowl.
Background technology
Plastic molding press be that softening plastics are become a blank through stretching head with stretching; Particularly make the make-up machine of plastic cup, bowl; At first to the stretching of the stretched head of plastic sheeting be formed the blank of a cup or bowl, form plastic cup or plastic bowl through a series of processing then.The stretching of this stretching head will be advanced the drive mechanism of overstretching head could accomplish the action that stretches.At present, the driving mechanism of stretching head also comprises servomotor, screw mandrel, screw and support on these plastic molding presses, and wherein the rotating shaft of servomotor is connected with screw mandrel through the shaft coupling of spring steel chip; Its screw swivel nut is on screw mandrel; Its support adopts tower structure, and two guide pillars are installed on support, has the through hole with the guide pillar coupling on the described screw; Screw can move on two guide pillars through this through hole, and described screw also connects stretching head.During servomotor work, drive screw mandrel and rotate, screw mandrel drives screw and slides up and down along two guide pillars, moves up and down thereby drive stretching head.The stretching head driving mechanism of this structure because screw moves along two guide pillars, is to be a kind of sliding friction between screw and the guide pillar, and its frictional force is bigger; Influenced the operational efficiency of stretching head, adopted two guide pillars, when mounted, the degree of balance is difficult to guarantee; The adjustment difficulty of its degree of balance is very big, and its shaft coupling adopts the structure of spring steel plate stack; Though have elasticity, can eliminate axial impulsive force, can not eliminate impulsive force radially; This receives the effect of stretching head impulsive force when driving, be easy to damage servomotor; And its support adopts the structure of frame-type, and rigidity is not very high, and this just makes that the driving mechanism of whole stretching head is not long service life.
Summary of the invention
In view of the deficiency that background technology exists, the technical problem that the present invention will solve provides a kind of operational efficiency height and need not to adjust the driving mechanism of the stretching head of the degree of balance.
For this reason, the present invention adopts following technical scheme to realize: a kind of driving mechanism of stretching head comprises servomotor, screw mandrel, screw and support; The rotating shaft of said servomotor is connected with screw mandrel through shaft coupling, and said screw swivel nut is characterized in that having chute on the said support on screw mandrel; Said screw is provided with guide bearing; Said guide bearing places in the said chute, is connected with guide pillar on the said screw, and said guide pillar connects tensile connector; The junction of said screw mandrel and said shaft coupling is provided with journal bearing; The top of said journal bearing is provided with thrust bearing; Said shaft coupling is a jaw and toothed coupling; Be installed with slide block on the said screw, said guide bearing and guide pillar are installed on the said slide block; Said support is a box typed structure.
Among the present invention, adopted guide bearing, it is under the constraint of bracket chute; In chute, roll, frictional force significantly reduces, thereby has improved its operational efficiency; The journal bearing and the reasoning bearing of its screw mandrel of while and the jointly junction setting of device, the impulsive force that produces when stretching head is stretched is carried out radial and axial elimination, the castellated structure of its shaft coupling employing; Further eliminate the impulsive force when stretching head stretches, made that the operation of servomotor is guaranteed reliably, farthest protected servomotor; Its support adopts box typed structure, has improved the rigidity of driving mechanism, has prolonged its service life.
Description of drawings
Combine accompanying drawing to further describe relevant details of the present invention below again.
Fig. 1 is a structure chart of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is D structure figure of the present invention.
The specific embodiment
With reference to accompanying drawing, the driving mechanism of this stretching head comprises servomotor 1, screw mandrel 9, screw 5 and support 10; The rotating shaft of said servomotor 1 is connected with screw mandrel 9 through shaft coupling 2, and said screw 5 swivel nuts are on screw mandrel 9, and the both sides of said support 10 have chute 13; Be installed with slide block 6 on the said screw 5, the both sides of said slide block 6 are equipped with guide bearing 7, and the guide bearing 7 of said slide block 6 both sides places respectively in the chute 13 of said support 10 both sides; Therefore, when guide bearing 7 moves in chute 13, a kind of rolling friction of generation; Its frictional force reduces greatly; Improved the operational efficiency of this driving mechanism, and described slide block 6 is connected with guide pillar 8, said screw mandrel 9 is provided with journal bearing 4 with the junction of said shaft coupling 2; The top of said journal bearing 4 is provided with thrust bearing 3, and said guide pillar 8 connects tensile connector 12, and said shaft coupling 2 is a jaw and toothed coupling, and this shaft coupling 2 is made up of upper semi-body and lower semi-body, has the buffer gap between upper semi-body and the lower semi-body; Like this, thrust bearing 4 is used with jaw and toothed coupling 2, along with the action of stretching head; Can not produce axial impulsive force to servomotor 1; Guaranteed servomotor 1 reliability of operation, said support 10 is a box typed structure, the support of this structure; Its rigidity is very strong, has prolonged its service life.
When the present invention worked, after servomotor 1 work, its rotating shaft drove screw mandrel 9 and rotates; After screw mandrel 9 rotated, the screw 5 that is enclosed within on the screw mandrel 9 just moved up and down on screw mandrel 9, the moving up and down of screw 5; Just drive stretching head 12 through guide pillar 8 and move up and down, so just drive stretching head.The stretching head driving mechanism of this structure can be widely used in the plastic molding press, and the reliably working of its high efficiency operation and servomotor, and the raising of rigidity have all prolonged service life of this driving mechanism.
Claims (1)
1. the driving mechanism of
a kind of stretching head; Comprise servomotor (1), screw mandrel (9), screw (5) and support (10); The rotating shaft of said servomotor (1) is connected with said screw mandrel (9) through shaft coupling (2), and said screw (5) swivel nut is characterized in that having chute (13) on the said support (10) on said screw mandrel (9); Said screw (5) is provided with guide bearing (7); Said guide bearing (7) places in the said chute (13), is connected with guide pillar (8) on the said screw (5), and said guide pillar (8) connects tensile connector (12); Said screw mandrel (9) is provided with journal bearing (4) with the junction of said shaft coupling (2); The top of said journal bearing (4) is provided with thrust bearing (3), and said shaft coupling (2) is a jaw and toothed coupling, is installed with slide block (6) on the said screw (5); Said guide bearing (7) and guide pillar (8) are installed on the said slide block (6), and said support (10) is a box typed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101769060A CN101844400B (en) | 2010-05-20 | 2010-05-20 | Driving mechanism of stretching head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101769060A CN101844400B (en) | 2010-05-20 | 2010-05-20 | Driving mechanism of stretching head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101844400A CN101844400A (en) | 2010-09-29 |
| CN101844400B true CN101844400B (en) | 2012-09-19 |
Family
ID=42769296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101769060A Active CN101844400B (en) | 2010-05-20 | 2010-05-20 | Driving mechanism of stretching head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101844400B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2076649U (en) * | 1990-02-10 | 1991-05-08 | 刘阳彬 | Household central heating pump |
| CN201124563Y (en) * | 2007-09-21 | 2008-10-01 | 贾方满 | Auxiliary stretching device for plastic products forming machine |
| US20080280743A1 (en) * | 2007-05-11 | 2008-11-13 | Werner Stahlecker | Apparatus for manufacturing a conical sleeve and/or a paper cup |
| CN201645819U (en) * | 2010-05-20 | 2010-11-24 | 瑞安市力泰机械有限公司 | Driving mechanism of tensile head |
-
2010
- 2010-05-20 CN CN2010101769060A patent/CN101844400B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2076649U (en) * | 1990-02-10 | 1991-05-08 | 刘阳彬 | Household central heating pump |
| US20080280743A1 (en) * | 2007-05-11 | 2008-11-13 | Werner Stahlecker | Apparatus for manufacturing a conical sleeve and/or a paper cup |
| CN201124563Y (en) * | 2007-09-21 | 2008-10-01 | 贾方满 | Auxiliary stretching device for plastic products forming machine |
| CN201645819U (en) * | 2010-05-20 | 2010-11-24 | 瑞安市力泰机械有限公司 | Driving mechanism of tensile head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101844400A (en) | 2010-09-29 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220419 Address after: 325400 doubei village, Haixi Town, Pingyang County, Wenzhou City, Zhejiang Province Patentee after: PINGYANG LITAI MACHINERY Co.,Ltd. Address before: 325200 Fei Yun Zhen Ge Xiang Er Cun, Rui'an City, Wenzhou City, Zhejiang Province Patentee before: RUIAN LITAI MACHINERY Co.,Ltd. |