CN113201866A - Automatic sewing device for cushion of hanging chair - Google Patents
Automatic sewing device for cushion of hanging chair Download PDFInfo
- Publication number
- CN113201866A CN113201866A CN202110543250.XA CN202110543250A CN113201866A CN 113201866 A CN113201866 A CN 113201866A CN 202110543250 A CN202110543250 A CN 202110543250A CN 113201866 A CN113201866 A CN 113201866A
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- China
- Prior art keywords
- clamping
- sewing machine
- unit
- clip
- seat cushion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
Abstract
The invention relates to the technical field of chair cushion processing, in particular to an automatic sewing device for a chair cushion, which comprises a sewing machine and is characterized by also comprising a conveying assembly arranged below the sewing machine, wherein the conveying assembly comprises a plurality of clamping units, each clamping unit can bear a cushion to be processed and sequentially sews through the sewing machine, and the clamping units rotate on a horizontal plane to switch positions to complete multi-point sewing work when being arranged below the sewing machine. The utility model provides a cushion that automatic sewing device of hanging seat cushion, treats processing through set up the centre gripping unit on the conveying component and carries out the centre gripping and carry to sewing machine sewing down, the centre gripping unit is automatic to be carried out rotatory switching position and is used for the multiple spot position sewing, and the precision is high, reduces manual operation intensity.
Description
Technical Field
The invention relates to the technical field of machining of a hanging seat cushion, in particular to an automatic sewing device for the hanging seat cushion.
Background
At present, the rattan chair hanging basket swing is popular as a household leisure chair, and in the production process of the rattan chair hanging basket swing, a steel pipe frame is usually used as a framework, and various rattans are wound and woven on the framework for forming. The existing rattan hanging basket swing is manufactured by hard materials, people sit on the swing without soft feeling, a soft cushion is usually added to the rattan hanging basket swing, automatic production cannot be completed in the production of the cushion, labor intensity is consumed greatly, and efficiency is low.
Patent document with application number CN201921833715.X discloses a perforating device is used in exercise bicycle cushion production, relate to the exercise bicycle cushion field of punching, including operation panel and fixed station, the up end rear side of operation panel is provided with the spout, swing joint has the slider in the spout, the fixed hydraulic telescoping post that is provided with in upper end of slider, hydraulic telescoping post is connected with hydraulic telescoping rod, the fixed reference column that is provided with in upper end of fixed station, be provided with the recess between the reference column, the upper end of operation panel is provided with electric telescopic handle, the upper portion outside of drilling rod is provided with the side cutting edge.
However, in the actual production process, the inventor finds that 1, the cushion needs to be taken and placed manually, and the time and the labor are consumed; 2. the cushion needs a plurality of position sews, relies on artifical transposition adjustment, the problem that the degree of accuracy differs.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an automatic sewing device for a chair lift cushion, wherein a conveying assembly is provided with a clamping unit for clamping and conveying a cushion to be processed to a sewing machine for sewing, the clamping unit automatically rotates to switch positions for multi-point position sewing, the precision is high, the manual operation intensity is reduced, and the technical problems that the cushion needs to be taken and placed in a manual auxiliary mode, the time and the labor are consumed, the cushion needs to be sewn in multiple points, the position is changed and adjusted manually, and the accuracy is different in the background technology are solved.
Aiming at the technical problems, the technical scheme is as follows:
the utility model provides an automatic sewing device of hanging seat cushion, includes the sewing machine, its characterized in that, still including set up in the conveying component of sewing machine below, conveying component includes a plurality of centre gripping units, every the centre gripping unit all can bear a cushion of treating processing and pass through in proper order the sewing machine sews, the centre gripping unit is in rotatory switching position is in order to accomplish multiple spot position sewing work on the horizontal plane during sewing machine below.
As an improvement, the clamping unit comprises four groups of clamping rings, telescopic arms and a jacking piece, the telescopic arms are arrayed along the circumference of each clamping ring, the telescopic arms slide in the radial direction of the clamping rings, the jacking piece is connected with the telescopic arms through connecting rods, and the jacking piece is vertically lifted and driven to extend outwards or contract inwards.
As an improvement, the conveying assembly further comprises a stepping conveying chain and a jacking track, the stepping conveying chain is provided with support columns which correspond to the clamping units one by one and are used for supporting the clamping rings, and the jacking track is in interference fit with the jacking piece.
As an improvement, the telescopic arm is elastically connected with the supporting column through a tension spring.
As an improvement, the sewing machine further comprises a position switching assembly, wherein the position switching assembly is arranged below the sewing machine and used for controlling the switching position of the clamping unit, and the position switching assembly comprises a rotating switching unit and a clip driving unit, the rotating switching unit is used for driving the clamping unit to rotate along the center, and the clip driving unit is used for driving the clamping unit to do clip movement on the horizontal plane.
As an improvement, the supporting column freely rotates relative to the stepping transmission chain, the rotating switching unit is arranged on the jacking track, and the rotating switching unit drives the supporting column to intermittently rotate by taking 90 degrees as a unit.
As an improvement, a raised column is arranged on the bottom surface of the clamping ring, and when the clamping unit moves to the position below the sewing machine, the clip driving unit is matched with the raised column to drive the clamping ring to do clip movement.
As an improvement, the square-shaped driving unit comprises a vertical cylinder and a rotor motor, the vertical cylinder controls the rotor motor to vertically lift, the output end of the rotor motor is connected with a shifting lever, and the shifting lever is matched with the protruding columns to shift the clamping ring to move.
As an improvement, the rotary switching unit comprises a mounting plate, a rotary motor arranged on the mounting plate and a half gear arranged on the rotary motor, and a gear ring is arranged on the outer edge of the clamping ring and is in meshing transmission with the half gear.
As an improvement, the clip driving unit comprises a clip and an eccentric shaft, a protruding column is arranged on the bottom surface of the clamping ring, the clip ascends to be clamped with the protruding column, the eccentric shaft is rotatably arranged on the sewing machine, and the eccentric shaft penetrates through the mounting plate and then is in transmission connection with the half gear.
The invention has the beneficial effects that:
(1) according to the invention, the conveying assembly is provided with the clamping unit for clamping and conveying the cushion to be processed to the lower part of the sewing machine for sewing, the clamping unit automatically rotates to switch positions for multi-point sewing, the precision is high, and the manual operation intensity is reduced;
(2) according to the invention, the elastic connection is arranged between the telescopic arm and the support column, so that on one hand, the cushion is elastically contracted and clamped, and on the other hand, when the clip ring is driven by the clip driving unit to do circular clip motion, the clip unit relatively displaces in the horizontal plane relative to the support column;
(3) according to the invention, the half gear is arranged, so that the rotation switching point position of the clamping ring around the supporting column can be controlled, the clip driving unit can be controlled to rotate to drive the clamping unit to do clip movement, and the power is saved.
To sum up, this equipment has automatic switch point location sewing, the precision is high, save artifical, simple structure's advantage, is particularly useful for the hanging seat cushion processing technology field.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an axial schematic view of the present invention as a whole.
FIG. 2 is a partial schematic view of the delivery assembly of the present invention.
FIG. 3 is a schematic view of a partial cross-sectional view of the entire axial measurement of the present invention.
Fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Fig. 5 is an enlarged schematic view of B in fig. 3.
FIG. 6 is a schematic top view of a sewing circle according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of the seat cushion.
FIG. 8 is a right side cross-sectional view of the present invention.
FIG. 9 is a second schematic axial view of the present invention.
Fig. 10 is an enlarged view of C in fig. 9.
Fig. 11 is an enlarged view of fig. 9 at D.
FIG. 12 is a partial schematic view of the clamping unit of the present invention under a sewing machine.
FIG. 13 is a schematic top view of a sewing circle in the second embodiment of the present invention.
FIG. 14 is a bottom view of a portion of the position switch assembly of the present invention.
Fig. 15 is a schematic structural view of the eccentric shaft of the present invention.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.
Example one
As shown in fig. 1 to 4, an automatic sewing device for a chair cushion comprises a sewing machine 1 and is characterized by further comprising a conveying assembly 2 arranged below the sewing machine 1, wherein the conveying assembly 2 comprises a plurality of clamping units 21, each clamping unit 21 can bear a cushion to be processed and sequentially sews through the sewing machine 1, and the clamping units 21 are rotatably switched on a horizontal plane to complete multi-point sewing work below the sewing machine 1.
It should be noted that, in the cushion production process, make the circle on the cushion and be used for fixed cotton core and cushion cover, need make a plurality of circles on every cushion, after sewing machine 1 made a circle, centre gripping unit 21 is rotatory certain angle, and sewing machine 1 makes the circle again to the cushion, has made the circle of settlement quantity in proper order, and centre gripping unit 21 leaves sewing machine 1 and carries the cushion that the processing was accomplished and leave.
As shown in fig. 2 and 4, the clamping unit 21 further includes a clamping ring 211, four sets of telescopic arms 212 and a jacking member 213, the telescopic arms 212 are arranged in four sets along the circumference of the clamping ring 211, the telescopic arms 212 slide in the radial direction of the clamping ring 211, the jacking member 213 is connected with each telescopic arm 212 through a connecting rod, and the jacking member 213 is vertically lifted and lowered to drive the telescopic arms 212 to extend outwards or retract inwards.
Further, the conveying assembly 2 further comprises a stepping conveying chain 22 and a jacking track 23, the stepping conveying chain 22 is provided with supporting columns 24 corresponding to the clamping units 21 one by one for supporting the clamping rings 211, and the jacking track 23 is in interference fit with the jacking piece 213.
Further, the telescopic arm 212 is elastically connected to the supporting column 24 by a tension spring 214.
It should be noted that, when the telescopic arms 212 slide along the radial direction of the clamping ring 211, the pushing member 213 is connected to the telescopic arms 212 through the connecting rod to be pushed out when ascending, the four telescopic arms 212 can accommodate the seat cushion to be placed thereon, after the stepping transmission chain 22 drives the clamping unit 21 to move forward, the pushing member 213 is separated from the pushing track 23, and due to the action of the tension spring 214, each telescopic arm 212 is retracted towards the supporting column 24 to complete clamping of the seat cushion.
As shown in fig. 5, further, the sewing machine further comprises a position switching assembly 3, the position switching assembly 3 is disposed below the sewing machine 1 to control the switching position of the clamping unit 21, and the position switching assembly 3 comprises a rotation switching unit 31 for driving the clamping unit 21 to rotate along the center and a clip driving unit 32 for driving the clamping unit 21 to perform a clip movement in a horizontal plane.
Further, the supporting column 24 freely rotates relative to the stepping transmission chain 22, the rotation switching unit 31 is disposed on the pushing track 23, and the rotation switching unit 31 drives the supporting column 24 to intermittently rotate by 90 ° as a unit.
It should be noted that, in the present embodiment, the rotation switching unit 31 is configured to rotate the friction wheel or the gear transmission support column 24, and the support column 24 is connected to the telescopic arm 212 through the tension spring 214, so that the telescopic arm 212 rotates together with the clamp ring 211.
As shown in fig. 5, 6 and 8, a protrusion 2111 is further disposed on a bottom surface of the clamp ring 211, and when the clamp unit 21 moves to a position below the sewing machine 1, the clip drive unit 32 drives the clamp ring 211 to perform a clip movement in cooperation with the protrusion 2111.
Further, the clip driving unit 32 includes a vertical cylinder 321 and a rotor motor 322, the vertical cylinder 321 controls the rotor motor 322 to vertically lift, an output end of the rotor motor 322 is connected to a driving lever 323, and the driving lever 323 cooperates with the protrusion 2111 to drive the clamping ring 211 to move.
Example two
As shown in fig. 9 to 15, in which the same or corresponding components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, only the differences from the first embodiment will be described below for the sake of convenience: the second embodiment is different from the first embodiment in that:
in this embodiment, the rotation switching unit 31 includes a mounting plate 310, a rotating electrical machine 311 disposed on the mounting plate 310, and a half gear 312 disposed on the rotating electrical machine 311, and a ring gear disposed on an outer edge of the clamping ring 211 is in meshing transmission with the half gear 312.
Further, the clip 325 and the eccentric shaft 324 are included in the clip unit 32, the bottom surface of the clip ring 211 is provided with a protrusion 2111, the clip 325 rises to engage with the protrusion 2111, the eccentric shaft 324 is rotatably provided on the sewing machine 1, and the eccentric shaft 324 passes through the mounting plate 310 and is in transmission connection with the half gear 312.
It should be noted that the clip 325 is driven to ascend and descend by the external force of the cylinder, the clip 325 is engaged with the protrusion 2111 when ascending, the eccentric shaft 324 rotates to drive the retaining ring 211 to move, and after the sewing machine 1 finishes sewing a circle, the clip 325 descends and disengages to wait for the retaining ring 211 to rotate to switch positions and then to be clipped again.
It should be noted that the eccentric shaft 324 and the clamping ring 211 are respectively disposed at two sides of the half gear 312, the half gear 312 drives the eccentric shaft 324 to rotate first to make the clamping unit 21 make a circle turn, and the sewing machine 1 can sew a circle on the cushion; then, the half gear 312 operates to be in meshing transmission with the clamping ring 211, the clamping ring 211 can rotate and change positions relative to the supporting column 24, the eccentric shafts 324 are alternately driven by the same half gear 312 to rotate without interfering with the clamping ring 211, and the structure is simple.
In this embodiment, a polished rod assembly 4 is arranged between the mounting plate 310 and the sewing machine 1 for connection, specifically, the polished rod assembly 4 comprises a cross rod 41, a longitudinal rod 42 and a connecting block 43, the cross rod 41 is arranged on the mounting plate 310, the longitudinal rod 42 is arranged on the support of the sewing machine 1, and the connecting block 43 is used for slidably connecting the cross rod 4 and the longitudinal rod 42, so that the mounting plate 310 can freely slide in the horizontal plane relative to the sewing machine 1 to form a picture ring.
The working process is as follows:
the cushions to be processed are placed on the clamping units 21 of the conveying assembly 2 one by one, when the stepping transmission chain 22 drives the clamping units 21 to point to the sewing machine 1 to advance, the jacking pieces 213 are separated from the jacking tracks 23, the telescopic arms 212 in the clamping units 21 contract inwards to clamp the cushions, the stepping transmission chain 22 stops temporarily after the clamping units 21 reach the lower part of the sewing machine 1, the sewing machine 1 sews circles the cushions, wherein the clamping units 21 are controlled by the circle-shaped driving unit 32 to do circle-shaped motion, after one circle is sewed, the rotary switching unit 31 immediately drives the clamping units 21 to rotate around the supporting columns 24 for switching to another position where the circle needs to be sewed and then sewing, after sequential operation, the cushion is sewed with a plurality of circles, then the stepping transmission chain 22 is started to advance, when the cushion is transported to the end part of the length direction of the stepping transmission chain 22, the jacking tracks 23 jack the jacking pieces 213 to enable the telescopic arms 212 to extend outwards, the seat cushion is smoothly separated from the clamp unit 21 to complete the work.
In the description of the present invention, it is to be understood that the terms "front-back", "left-right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the invention.
Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art in light of the technical teaching of the present invention should be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an automatic sewing device of hanging seat cushion, includes sewing machine (1), its characterized in that, still including set up in conveying component (2) of sewing machine (1) below, conveying component (2) include a plurality of clamping unit (21), every clamping unit (21) all can bear a cushion of treating processing and pass through in proper order sewing machine (1) sews, clamping unit (21) are in rotatory switching position is in order to accomplish multiple spot position sewing work on the horizontal plane during sewing machine (1) below.
2. The automatic sewing device for the seat cushion of the hanging chair as claimed in claim 1, wherein the clamping unit (21) comprises a clamping ring (211), four groups of telescopic arms (212) and a jacking piece (213), the telescopic arms (212) are arrayed along the circumference of the clamping ring (211), the telescopic arms (212) slide relative to the clamping ring (211) in the radial direction, the jacking piece (213) is connected with each telescopic arm (212) through a connecting rod, and the jacking piece (213) is vertically lifted and driven to extend outwards or retract inwards the telescopic arms (212).
3. The automatic sewing device for the seat cushion of the hanging chair as claimed in claim 2, wherein the conveying assembly (2) further comprises a stepping conveying chain (22) and a jacking track (23), the stepping conveying chain (22) is provided with supporting columns (24) which correspond to the clamping units (21) one by one and are used for supporting the clamping rings (211), and the jacking track (23) is in interference fit with the jacking piece (213).
4. An automatic sewing device for a seat cushion of a chair-lift as claimed in claim 3, wherein the telescopic arm (212) is elastically connected to the support column (24) by a tension spring (214).
5. The automatic sewing device for the seat cushion of the hanging chair as claimed in claim 4, further comprising a position switching assembly (3), wherein the position switching assembly (3) is arranged below the sewing machine (1) to control the switching position of the clamping unit (21), and the position switching assembly (3) comprises a rotation switching unit (31) for driving the clamping unit (21) to rotate along the center and a clip driving unit (32) for driving the clamping unit (21) to perform a clip movement in the horizontal plane.
6. An automatic sewing device for a seat cushion of a chair-lift as claimed in claim 5, wherein the supporting column (24) is freely rotatable relative to the stepping transmission chain (22), the rotary switching unit (31) is disposed on the pushing track (23), and the rotary switching unit (31) drives the supporting column (24) to intermittently rotate by 90 °.
7. The automatic sewing device for the seat cushion of the hanging chair as claimed in claim 5, wherein a protruding post (2111) is arranged on the bottom surface of the clamping ring (211), and when the clamping unit (21) moves to the lower part of the sewing machine (1), the clip driving unit (32) is matched with the protruding post (2111) to drive the clamping ring (211) to do clip movement.
8. The automatic sewing device for the seat cushion of the hanging chair as claimed in claim 7, wherein the clip driving unit (32) comprises a vertical cylinder (321) and a rotor motor (322), the vertical cylinder (321) controls the rotor motor (322) to vertically lift, the output end of the rotor motor (322) is connected with a driving lever (323), and the driving lever (323) cooperates with the protruding post (2111) to drive the clamping ring (211) to move.
9. The automatic sewing device for the seat cushion of the hanging chair as claimed in claim 5, wherein the rotation switching unit (31) comprises a mounting plate (310), a rotating motor (311) arranged on the mounting plate (310) and a half gear (312) arranged on the rotating motor (311), and a gear ring arranged on the outer edge of the clamping ring (211) is in meshing transmission with the half gear (312).
10. The automatic sewing machine for the seat cushion of the hanging chair as claimed in claim 9, wherein the clip (325) and the eccentric shaft (324) are comprised by the clip (325), the bottom surface of the clip ring (211) is provided with a protruding post (2111), the clip (325) rises to be engaged with the protruding post (2111), the eccentric shaft (324) is rotatably arranged on the sewing machine (1), and the eccentric shaft (324) penetrates through the mounting plate (310) and is in transmission connection with the half gear (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110543250.XA CN113201866B (en) | 2021-05-19 | 2021-05-19 | Automatic sewing device for cushion of hanging chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110543250.XA CN113201866B (en) | 2021-05-19 | 2021-05-19 | Automatic sewing device for cushion of hanging chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113201866A true CN113201866A (en) | 2021-08-03 |
| CN113201866B CN113201866B (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110543250.XA Active CN113201866B (en) | 2021-05-19 | 2021-05-19 | Automatic sewing device for cushion of hanging chair |
Country Status (1)
| Country | Link |
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| CN (1) | CN113201866B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100199900A1 (en) * | 2009-02-11 | 2010-08-12 | Bernina-International Ag | Holding device for a tool for processing a textile or non-textile sheet material for a sewing machine |
| CN105780318A (en) * | 2016-04-11 | 2016-07-20 | 天津市大中服装有限公司 | Sewing machine for sewing laced pockets |
| CN208618071U (en) * | 2018-06-28 | 2019-03-19 | 无锡豪派车业科技有限公司 | A kind of sewing machine for electric vehicle seat cushion set |
| CN211897332U (en) * | 2020-03-05 | 2020-11-10 | 烟台弘扬服饰有限公司 | Brim of a hat sewing auxiliary fixture |
| CN112318302A (en) * | 2020-11-04 | 2021-02-05 | 安徽戴家工艺有限公司 | Wood raw material pretreatment processing equipment of leisure chaise longue |
| CN212895317U (en) * | 2020-06-17 | 2021-04-06 | 金华市百川工艺品有限公司 | Automatic change sewing machine |
| CN112811324A (en) * | 2021-02-21 | 2021-05-18 | 桂林航天工业学院 | Portable telescopic mechanical arm |
-
2021
- 2021-05-19 CN CN202110543250.XA patent/CN113201866B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100199900A1 (en) * | 2009-02-11 | 2010-08-12 | Bernina-International Ag | Holding device for a tool for processing a textile or non-textile sheet material for a sewing machine |
| CN105780318A (en) * | 2016-04-11 | 2016-07-20 | 天津市大中服装有限公司 | Sewing machine for sewing laced pockets |
| CN208618071U (en) * | 2018-06-28 | 2019-03-19 | 无锡豪派车业科技有限公司 | A kind of sewing machine for electric vehicle seat cushion set |
| CN211897332U (en) * | 2020-03-05 | 2020-11-10 | 烟台弘扬服饰有限公司 | Brim of a hat sewing auxiliary fixture |
| CN212895317U (en) * | 2020-06-17 | 2021-04-06 | 金华市百川工艺品有限公司 | Automatic change sewing machine |
| CN112318302A (en) * | 2020-11-04 | 2021-02-05 | 安徽戴家工艺有限公司 | Wood raw material pretreatment processing equipment of leisure chaise longue |
| CN112811324A (en) * | 2021-02-21 | 2021-05-18 | 桂林航天工业学院 | Portable telescopic mechanical arm |
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| Publication number | Publication date |
|---|---|
| CN113201866B (en) | 2022-07-29 |
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Address after: Park 1, Yingtian Industrial Park, No. 12 Fuqiang Road, Yingdong District, Fuyang City, Anhui Province, 236000 Patentee after: Anhui Daijia Industrial Co.,Ltd. Address before: 236000 Yingqing science and Technology Park, Yingdong Economic Development Zone, Fuyang, Anhui Patentee before: ANHUI DAIJIA TECHNOLOGY Co.,Ltd. |
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