CN201645819U - Driving mechanism of tensile head - Google Patents
Driving mechanism of tensile head Download PDFInfo
- Publication number
- CN201645819U CN201645819U CN2010201960265U CN201020196026U CN201645819U CN 201645819 U CN201645819 U CN 201645819U CN 2010201960265 U CN2010201960265 U CN 2010201960265U CN 201020196026 U CN201020196026 U CN 201020196026U CN 201645819 U CN201645819 U CN 201645819U
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- CN
- China
- Prior art keywords
- driving mechanism
- screw
- stretching head
- bearing
- screw mandrel
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- Expired - Fee Related
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- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The utility model discloses a driving mechanism of a tensile head, comprising a servo motor (1), a screw rod (9), a screw nut (5) and a bracket (10); the rotating shaft of the servo motor (1) is connected with the screw rod (9) by a coupler (2), and the screw nut (5) is sheathed on the screw rod (9) by threads; the driving mechanism of the tensile head is characterized in that: a sliding groove (13) is arranged on the bracket (10), a guiding bearing (7) is arranged on the screw nut (5), the guiding bearing (7) is arranged in the sliding groove (13), a guiding column (8) is connected on the screw nut (5), and the guiding column (8) is connected with a tensile joint (12); the driving mechanism of the tensile head has the advantages that the guiding bearing slides top and bottom under the restraining of the sliding groove, the rolling friction principle is utilized and the operation efficiency of the mechanism is improved.
Description
Technical field
The utility model relates to the driving mechanism of drawing mechanism on the plastic molding press, particularly relates 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 by stretching head with stretching, particularly make the make-up machine of plastic cup, bowl, at first the stretching of the stretched head of plastic sheeting to 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 just can finish 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, wherein the rotating shaft of servomotor is connected with screw mandrel by 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 by 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, be to be a kind of sliding friction between screw and the guide pillar, its frictional force is bigger, influence 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, but can not eliminate impulsive force radially, this is when driving, be subjected to the effect of stretching head impulsive force, 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 problems to be solved in the utility model 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 utility model adopts following technical scheme to realize: a kind of driving mechanism of stretching head, comprise servomotor, screw mandrel, screw and support, the rotating shaft of described servomotor is connected with screw mandrel by shaft coupling, and described screw swivel nut is characterized in that having chute on the described support on screw mandrel, described screw is provided with guide bearing, described guide bearing places in the described chute, is connected with guide pillar on the described screw, and described guide pillar connects tensile connector; The junction of described screw mandrel and described shaft coupling is provided with journal bearing; The top of described journal bearing is provided with thrust bearing; Described shaft coupling is a jaw and toothed coupling; Be installed with slide block on the described screw, described guide bearing and guide pillar are installed on the described slide block; Described support is a box typed structure.
In the utility model; adopted guide bearing; it is under the constraint of bracket chute; in chute, roll; frictional force significantly reduces; thereby 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 eliminated the impulsive force when stretching head stretches; make that the operation of servomotor is guaranteed reliably, farthest protected servomotor, its support adopts box typed structure; improve the rigidity of driving mechanism, prolonged its service life.
Description of drawings
Further describe relevant details of the present invention below more in conjunction with the accompanying drawings.
Fig. 1 is a structure chart of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is D structure figure of the present utility model.
The specific embodiment
With reference to accompanying drawing, the driving mechanism of this stretching head, comprise servomotor 1, screw mandrel 9, screw 5 and support 10, the rotating shaft of described servomotor 1 is connected with screw mandrel 9 by shaft coupling 2, described screw 5 swivel nuts are on screw mandrel 9, the both sides of described support 10 have chute 13, be installed with slide block 6 on the described screw 5, the both sides of described slide block 6 are equipped with guide bearing 7, the guide bearing 7 of described slide block 6 both sides places respectively in the chute 13 of described support 10 both sides, therefore, guide bearing 7 in chute 13 when mobile, 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, described screw mandrel 9 is provided with journal bearing 4 with the junction of described shaft coupling 2; The top of described journal bearing 4 is provided with thrust bearing 3, and described guide pillar 8 connects tensile connector 12, and described shaft coupling 2 is a jaw and toothed coupling, and this shaft coupling 2 is made 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, action along with stretching head, can not produce axial impulsive force to servomotor 1, guaranteed servomotor 1 reliability of operation, described support 10 is a box typed structure, the support of this structure, its rigidity is very strong, has prolonged its service life.
During the utility model work, after servomotor 1 work, its rotating shaft drives 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 by 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 (6)
1. the driving mechanism of a stretching head, comprise servomotor (1), screw mandrel (9), screw (5) and support (10), the rotating shaft of described servomotor (1) is connected with described screw mandrel (9) by shaft coupling (2), described screw (5) swivel nut is on described screw mandrel (9), it is characterized in that having chute (13) on the described support (10), described screw (5) is provided with guide bearing (7), described guide bearing (7) places in the described chute (13), be connected with guide pillar (8) on the described screw (5), described guide pillar (8) connects tensile connector (12).
2. the driving mechanism of stretching head according to claim 1 is characterized in that the described screw mandrel (9) and the junction of described shaft coupling (2) are provided with journal bearing (4).
3. the driving mechanism of stretching head according to claim 2 is characterized in that the top of described journal bearing (4) is provided with thrust bearing (3).
4. the driving mechanism of stretching head according to claim 1 is characterized in that described shaft coupling (2) is a jaw and toothed coupling.
5. the driving mechanism of stretching head according to claim 1 is installed with slide block (6) on the described screw (5), and described guide bearing (7) and guide pillar (8) are installed on the described slide block (6).
6. the driving mechanism of stretching head according to claim 1 is characterized in that described support (10) is a box typed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201960265U CN201645819U (en) | 2010-05-20 | 2010-05-20 | Driving mechanism of tensile head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201960265U CN201645819U (en) | 2010-05-20 | 2010-05-20 | Driving mechanism of tensile head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201645819U true CN201645819U (en) | 2010-11-24 |
Family
ID=43111037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201960265U Expired - Fee Related CN201645819U (en) | 2010-05-20 | 2010-05-20 | Driving mechanism of tensile head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201645819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844400A (en) * | 2010-05-20 | 2010-09-29 | 瑞安市力泰机械有限公司 | Driving mechanism of stretching head |
| CN106477382A (en) * | 2016-11-29 | 2017-03-08 | 国网山东省电力公司济南供电公司 | Multifunctional power cable is deposited and is taken all-in-one |
-
2010
- 2010-05-20 CN CN2010201960265U patent/CN201645819U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844400A (en) * | 2010-05-20 | 2010-09-29 | 瑞安市力泰机械有限公司 | Driving mechanism of stretching head |
| CN101844400B (en) * | 2010-05-20 | 2012-09-19 | 瑞安市力泰机械有限公司 | Driving mechanism of stretching head |
| CN106477382A (en) * | 2016-11-29 | 2017-03-08 | 国网山东省电力公司济南供电公司 | Multifunctional power cable is deposited and is taken all-in-one |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120520 |