CN212771322U - Cloth cutting device of bag opening machine - Google Patents
Cloth cutting device of bag opening machine Download PDFInfo
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- CN212771322U CN212771322U CN202021575368.8U CN202021575368U CN212771322U CN 212771322 U CN212771322 U CN 212771322U CN 202021575368 U CN202021575368 U CN 202021575368U CN 212771322 U CN212771322 U CN 212771322U
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Abstract
The utility model belongs to the technical field of sewing machine, a cloth cutting device of bag opener is related to, including drive arrangement, cylinder and well knife tackle spare, drive arrangement is the motor, is fixed with the eccentric wheel on the motor shaft of motor, the cylinder includes the cylinder block and sets up the cylinder axle in the cylinder block, and the last pot head of cylinder block is established on the eccentric wheel, and the lower extreme of cylinder axle is connected with the upper end of well knife tackle spare, one side of cylinder is provided with the position sensor who detects cylinder axle position, position sensor is connected with the controller, and the controller passes through opening of solenoid valve control motor and cylinder and stops. The utility model provides an opening bag machine's fabric cutting device prevents that the cloth from cutting unusually, has improved the fabric cutting quality.
Description
Technical Field
The utility model belongs to the technical field of sewing machine, a fabric cutting device of bag opener is related to.
Background
The middle knife of the bag opening machine has the working principle that: when the cloth is fed from the machine head, the middle knife cylinder blows down the middle knife, the middle knife motor drives the middle knife to move up and down, the cloth piece moving from the lower surface of the machine head starts to be cut, and meanwhile, the pocket is sewn by the sewing system.
The defects of the existing bag opening machine in the structure are as follows: the existing control system is an open-loop system, a middle knife motor is controlled in a one-way mode through a controller, when a middle knife cylinder drives a middle knife down, if the cylinder stretches out and draws back in a delayed mode, is damaged or has a problem in a program, no signal is fed back to the controller, the presser foot motor continues to control a large presser foot to drag cloth, and the cloth can be cut over or not cut in place, so that the cloth is scrapped.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a fabric cutting device of bag opener, prevent that the cloth from cutting unusually, improved the fabric cutting quality.
In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:
the cloth cutting device of the bag opening machine comprises a driving device, an air cylinder and a middle knife assembly, wherein the driving device is a motor, an eccentric wheel is fixed on a motor shaft of the motor, the air cylinder comprises an air cylinder body and an air cylinder shaft arranged in the air cylinder body, the upper end of the air cylinder body is sleeved on the eccentric wheel, the lower end of the air cylinder shaft is connected with the upper end of the middle knife assembly, a position sensor for detecting the position of the air cylinder shaft is arranged on one side of the air cylinder, the position sensor is connected with a controller, and the controller controls the starting and stopping of the motor and the air cylinder through an electromagnetic.
The controller is a controller known in the art.
The middle cutter assembly comprises a middle cutter shaft, a middle cutter shaft driving block is fixed at the upper end of the middle cutter shaft, a middle cutter support is fixed at the lower end of the middle cutter shaft, and a middle cutter is mounted on the middle cutter support.
The lower end of the air cylinder shaft is fixedly provided with a first ball joint, the upper end of the middle cutter shaft driving block is fixedly provided with a second ball joint connected with the first ball joint, the upper end of the first ball joint and the lower end of the second ball joint are both provided with mounting grooves, and connecting springs are mounted in the mounting grooves. The ball joint I and the ball joint II are provided with a ball body and a spherical groove which are matched with each other, preferably, the lower end of the ball joint I is provided with the ball body, and the upper end of the ball joint II is provided with the spherical groove.
The position sensor is a sensor known in the art, for example, the position sensor is a hall sensor, and a magnetic ring is sleeved on the cylinder shaft.
Or, the position sensor is a proximity switch, and the cylinder shaft is provided with induction metal.
Furthermore, the cylinder body is sleeved with an anchor ear, and the position sensor is arranged in the opening end of the anchor ear and fastened through anchor ear screws.
Furthermore, a bearing is sleeved outside the eccentric wheel, and the cylinder body is installed on the bearing.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses an increase position sensor and turn into the control system of closed loop with the control system of open-loop, through the transmission of position sensor signal and control system's control, but in time transmit signal gives the controller when the cylinder shaft is flexible unusual, rethread controller control motor and cylinder action. Thereby improving the cloth cutting quality and avoiding the cloth damage caused by the middle cutter passing the head or not cutting in place.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is a partial exploded view of the present invention;
reference numerals: 1. a motor; 2. an eccentric wheel; 3. a cylinder block; 4. a cylinder shaft; 5. a position sensor; 6. a middle cutter shaft; 7. a middle cutter shaft driving block; 8. a middle knife bracket; 9. a middle knife; 10. a first ball joint; 11. a second ball joint; 12. mounting grooves; 13. a connecting spring; 14. hooping; 15. staple bolt screw.
Detailed Description
The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 3:
the cloth cutting device of the bag opening machine comprises a driving device, a cylinder and a middle cutter assembly, wherein the driving device is a motor 1, an eccentric wheel 2 is fixed on a motor shaft of the motor 1, a bearing is sleeved outside the eccentric wheel 2, the cylinder comprises a cylinder body 3 and a cylinder shaft 4 arranged in the cylinder body 3, the upper end of the cylinder body 3 is sleeved on the bearing, the lower end of the cylinder shaft 4 is connected with the upper end of the middle cutter assembly, a position sensor 5 for detecting the position of the cylinder shaft 4 is arranged on one side of the cylinder, the position sensor 5 is connected with a controller, and the controller controls the starting and stopping of the motor and the cylinder through an electromagnetic valve.
The principle of the utility model is that: when the device works, the controller starts timing when receiving a cutter signal for the air cylinder electromagnetic valve, after the air cylinder shaft 4 of the air cylinder retracts to the right position, the position sensor 5 transmits the signal to the controller, the timing is finished, if the retraction time of the air cylinder shaft 4 to the right position is abnormal, if the retraction time exceeds the set time, the error is reported, and if the retraction time is not abnormal, the device works normally. Furthermore, the controller is connected with a control panel, and error reporting time can be set on the control panel.
The specific structure of the middle knife component is as follows: the middle knife assembly comprises a middle knife shaft 6, a middle knife shaft driving block 7 is fixed at the upper end of the middle knife shaft 6, a middle knife bracket 8 is fixed at the lower end of the middle knife shaft 6, and a middle knife 9 is installed on the middle knife bracket 8.
Referring to fig. 3, the connection structure of the cylinder and the middle knife assembly is as follows: a first ball joint 10 is fixed at the lower end of the cylinder shaft 4, a second ball joint 11 connected with the first ball joint 10 is fixed at the upper end of the middle cutter shaft driving block 7, mounting grooves 12 are formed in the upper end of the first ball joint 10 and the lower end of the second ball joint 11, and a connecting spring 13 is mounted in each mounting groove 12. The ball joint I10 and the ball joint II 11 are provided with a ball body and a spherical groove which are matched with each other, preferably, the lower end of the ball joint I10 is provided with the ball body, and the upper end of the ball joint II 11 is provided with the spherical groove.
When the cloth cutting machine works, the air cylinder shaft 4 moves downwards to drive the middle knife assembly to move downwards, the motor 1 drives the eccentric wheel 2 to rotate, and the eccentric wheel 2 drives the air cylinder and the middle knife assembly to reciprocate up and down to cut cloth; the cylinder shaft 4 moves upwards to drive the middle cutter assembly to leave the cloth cutting station.
Referring to fig. 2, the position sensor 5 is a sensor known in the art, for example, the position sensor 5 is a hall sensor, and the cylinder shaft 4 is sleeved with a magnetic ring.
Or, the position sensor 5 is a proximity switch, and the cylinder shaft 4 is provided with an inductive metal.
The position sensor 5 is mounted in the following manner: the cylinder block 3 is sleeved with an anchor ear 14, and the position sensor 5 is arranged in the opening end of the anchor ear 14 and fastened through anchor ear screws 15.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The cloth cutting device of the bag opening machine comprises a driving device, a cylinder and a middle cutter assembly and is characterized in that the driving device is a motor (1), an eccentric wheel (2) is fixed on a motor shaft of the motor (1), the cylinder comprises a cylinder body (3) and a cylinder shaft (4) arranged in the cylinder body (3), the upper end of the cylinder body (3) is sleeved on the eccentric wheel (2), the lower end of the cylinder shaft (4) is connected with the upper end of the middle cutter assembly, a position sensor (5) for detecting the position of the cylinder shaft (4) is arranged on one side of the cylinder, the position sensor (5) is connected with a controller, and the controller controls starting and stopping of the motor (1) and the cylinder.
2. The cloth cutting device of the bag opening machine according to claim 1, wherein the middle knife assembly comprises a middle knife shaft (6), a middle knife shaft driving block (7) is fixed at the upper end of the middle knife shaft (6), a middle knife bracket (8) is fixed at the lower end of the middle knife shaft, and a middle knife (9) is installed on the middle knife bracket (8).
3. The cloth cutting device of the bag opening machine according to claim 2, wherein a first ball joint (10) is fixed at the lower end of the air cylinder shaft (4), a second ball joint (11) connected with the first ball joint (10) is fixed at the upper end of the middle cutter shaft driving block (7), mounting grooves (12) are formed in the upper end of the first ball joint (10) and the lower end of the second ball joint (11), and a connecting spring (13) is mounted in each mounting groove (12).
4. The cloth cutting device of the bag opening machine as claimed in claim 1, wherein the position sensor (5) is a hall sensor, and the cylinder shaft (4) is sleeved with a magnetic ring.
5. The cloth cutting device of the bag opening machine according to claim 1, wherein the position sensor (5) is a proximity switch, and the cylinder shaft (4) is provided with an inductive metal.
6. The cloth cutting device of the bag opener according to claim 1, wherein the cylinder block (3) is sleeved with a hoop (14), and the position sensor (5) is disposed in an open end of the hoop (14) and fastened by a hoop screw (15).
7. The cloth cutting device of the bag opening machine according to claim 1, wherein the eccentric wheel (2) is externally sleeved with a bearing, and the cylinder block (3) is mounted on the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575368.8U CN212771322U (en) | 2020-08-01 | 2020-08-01 | Cloth cutting device of bag opening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575368.8U CN212771322U (en) | 2020-08-01 | 2020-08-01 | Cloth cutting device of bag opening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212771322U true CN212771322U (en) | 2021-03-23 |
Family
ID=75049779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021575368.8U Active CN212771322U (en) | 2020-08-01 | 2020-08-01 | Cloth cutting device of bag opening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212771322U (en) |
-
2020
- 2020-08-01 CN CN202021575368.8U patent/CN212771322U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang yikeda Intelligent Technology Co.,Ltd. Assignor: BULLMER ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2022330000257 Denomination of utility model: A cloth cutting device of bag opener Granted publication date: 20210323 License type: Common License Record date: 20220701 |
|
| EE01 | Entry into force of recordation of patent licensing contract |