CN115096574A - Performance testing device for thread clamping device of sewing machine - Google Patents
Performance testing device for thread clamping device of sewing machine Download PDFInfo
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- CN115096574A CN115096574A CN202210761196.0A CN202210761196A CN115096574A CN 115096574 A CN115096574 A CN 115096574A CN 202210761196 A CN202210761196 A CN 202210761196A CN 115096574 A CN115096574 A CN 115096574A
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- 238000012360 testing method Methods 0.000 title claims abstract description 187
- 238000009958 sewing Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 238000004804 winding Methods 0.000 claims description 16
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 6
- 235000011613 Pinus brutia Nutrition 0.000 claims description 6
- 241000018646 Pinus brutia Species 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 4
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- 238000011056 performance test Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
- G01L5/0076—Force sensors associated with manufacturing machines
- G01L5/009—Force sensors associated with material gripping devices
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Abstract
The invention provides a performance testing device for a thread clamping device of a sewing machine, which belongs to the technical field of performance testing of the thread clamping device and comprises a test board, wherein a plurality of test units are arranged on the test board, each test unit comprises a fixing part, an on-line testing part and a thread loosening part, the on-line testing part comprises an automatic thread feeding assembly and a testing assembly, the automatic thread feeding assembly comprises two positioning ends, a test thread sequentially passes through the two positioning ends, the positioning ends are respectively positioned at the left side and the right side of a thread clamping piece, and the automatic thread feeding assembly further comprises two line concentration control ends and two middle line control ends. The performance testing device of the thread clamping device of the sewing machine has the advantages that the fixed part and the upper thread testing part are scientifically and reasonably matched through optimization of the fixed part and the upper thread testing part, the thread feeding process is simplified, the integral testing efficiency and the automation degree of the thread clamping device are improved, the stability of the testing process is high, the structure is simple, and the functions of the thread clamping device under different clamping forces can be tested.
Description
Technical Field
The invention relates to the technical field of performance testing of thread grippers, in particular to a performance testing device of a thread gripper of a sewing machine.
Background
The thread clamping device of the sewing machine has the main function of clamping sewing threads and provides proper clamping force for the sewing threads so as to improve sewing quality and attractiveness.
In the process that whole thread trapper used, it is too big to take place the clamp force relatively and leads to the unable removal of sewing thread even fracture or clamp force undersize and the elasticity that can't control the sewing thread and then reduce the quality of sewing and the condition of pleasing to the eye degree, secondly, still take place easily that the pine thread piece can't be by jack-up or jack-up scope is not enough and can't reach the purpose condition of pine thread, consequently, at the in-process of thread trapper production, can select a certain amount of samples before dispatching from the factory and carry out the capability test, ensure that its presss from both sides tight function and pine thread function normal.
In the process of testing the performance of the wire clamp, a test wire needs to be placed for simulation testing, and the existing wire clamp performance testing device is not very high in testing efficiency and automation degree due to the fact that an efficient wire releasing mechanism is lacked in the process of placing the test wire.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a device for testing the performance of a thread clamping device of a sewing machine, which is achieved by the following specific technical means: the automatic wire feeding device comprises a test board, wherein a plurality of test units are arranged on the test board, each test unit comprises a fixing part, a wire feeding test part and a wire loosening part, the fixing part is used for fixing a wire clamping device, a wire clamping sheet on the wire clamping device is in a suspended state after the wire clamping device is fixed, the wire feeding test part comprises an automatic wire feeding assembly and a test assembly, the automatic wire feeding assembly comprises two positioning ends, a test wire sequentially passes through the two positioning ends, the positioning ends are respectively positioned at the left side and the right side of the wire clamping sheet, the positioning ends move from bottom to top in the wire feeding process, the moving track is arc-shaped, the automatic wire feeding assembly further comprises two line concentration control ends and two middle line control ends, the line concentration control ends are respectively connected to the two ends of the test wire, the line concentration line control ends can both fix and wind the test wire, the middle line control ends are respectively positioned between the line concentration line ends and the positioning ends adjacent to the concentration line ends, and the middle line control ends store or release the test wire in a quantitative mode, the testing assembly is used for testing the testing line state under the line clamping state and the line loosening state, the line loosening part is used for pushing the ejector rod, and the line loosening piece is jacked up by the ejector rod to enable the line clamping piece to loosen the testing line.
The first preferred technical scheme is as follows: the fixing part comprises a placing groove with an upward opening, an upper limiting part, a front limiting part and a rear limiting part, the upper limiting part is elastically inserted into the placing groove and limits the wire clamp from the upper side, the front limiting part and the rear limiting part are respectively limited in the front and rear direction through clamping, the positioning end comprises a wire limiting part and an arc control rod, the wire limiting part is connected to the upper end of the arc control rod, the arc control rod is coaxial with the wire pressing piece and is rotatably connected to the test board, a conversion component for controlling the rotation of the arc control rod is arranged on the test board and comprises a transverse receiving part, a conversion rack and a conversion gear set, the transverse receiving part is connected to the test board in a vertical sliding mode, the conversion rack is connected to the transverse receiving part in a bilateral symmetry mode, and the transverse receiving part is meshed with the corresponding arc control rod through the conversion gear set.
The preferred technical scheme is as follows: the upper limiting piece comprises a sliding portion and a laminating portion, the laminating portion is connected in the placing groove through the sliding portion in a sliding mode, a unified pressing piece is arranged on the test board, a plurality of tightening pieces are connected to the unified pressing piece, the tightening pieces are used for controlling the limiting piece to compress the wire clamping device, the front limiting piece and the rear limiting piece are connected to the test board in a sliding mode, a unified pushing piece is connected to the test board in a sliding mode front and back, a unified adjusting assembly is arranged between the front limiting piece and the test board and comprises an adjusting sleeve and an adjusting rod, the adjusting rod is connected to the test board in a sliding mode left and right, the adjusting sleeve is respectively sleeved on the front limiting piece, and the adjusting sleeve is connected to the adjusting rod in an all-meshing mode.
The preferred technical scheme is three: the middle wire control end comprises a wire control piece and a sliding piece, the wire control piece is connected to the test board in a sliding mode through the sliding piece, and the sliding piece drives the wire control piece to control the tensioning and the loosening of the test wire.
The preferable technical scheme is four: the test board is connected with a unified sliding rod, the unified sliding rod is connected to the test board in a sliding mode, and the sliding pieces are connected to the unified sliding rod.
The preferred technical scheme is five: the line concentration control end comprises a cylindrical winding part with a pressing groove and a movable pressing part with a cambered surface, the movable pressing part corresponds to the pressing groove, the cylindrical winding part is rotatably connected to the test board, and the movable pressing part is slidably connected to the cylindrical winding part.
The preferred technical scheme is six: the test assembly comprises a tension shaft, a push rod and a pressure test piece, the tension shaft and the push rod are connected on the test board in a sliding mode, and the tension shaft is connected to the push rod through the pressure test piece.
The preferred technical scheme is seven: the line loosening part comprises a uniform line loosening rod and stable contact pieces, the stable contact pieces are connected to the uniform line loosening rod and correspond to the line clamping device one to one, the stable contact pieces are limiting channels with horn-shaped connectors, and the horn-shaped connectors are provided with through grooves.
The invention has the following beneficial effects: 1. this sewing machine thread trapper capability test device makes the two carry out scientific and reasonable's cooperation through the optimization to fixed part and the test portion that reaches the standard grade, has simplified the process of going up the line, has improved the efficiency and the degree of automation of the whole test of thread trapper.
2. This sewing machine thread trapper capability test device passes through standing groove, last spacing piece, preceding spacing piece and back spacing piece, limit line piece and arc control lever and conversion components's combined action, is in the same place thread trapper fixed process and the combination of the process scientific and reasonable that goes up, has effectively improved the efficiency and the degree of automation of going up the line.
3. The performance testing device of the thread clamping device of the sewing machine not only improves the stability of the fixed state of the thread clamping device and correspondingly improves the stability of the testing process through the combined action of the upper limiting piece, the unified pressing piece, the tightening piece, the unified pushing piece and the unified adjusting component, but also can test the functions of the thread clamping device under different clamping forces, and has the advantage of simple structure.
4. The performance testing device for the thread clamping device of the sewing machine does not influence the testing process and the result by arranging the middle thread control end, and can supplement the quantity of threads required by upward movement of the positioning end timely and stably.
5. The performance testing device of the thread clamping device of the sewing machine improves the convenience of replacing the testing thread through the combined action of the cylindrical winding piece and the movable pressing piece, is further convenient for testing the testing threads with different diameters and different materials, and has the advantage of high stability of placing and fixing the testing thread.
Drawings
Fig. 1 is a schematic structural diagram of a wire gripper.
FIG. 2 is a schematic view of a first perspective structure according to the present invention.
FIG. 3 is a second perspective view of the present invention.
FIG. 4 is a partial structural view of the present invention.
Fig. 5 is a partial sectional structural schematic view of the present invention.
Fig. 6 is a schematic structural view of the unified wire releasing lever and the stabilizing contact of the present invention.
FIG. 7 is a schematic view of a unified adjusting assembly according to the present invention.
Fig. 8 is a schematic view of the construction of the unified hold-down and take-up member of the present invention.
Fig. 9 is a schematic structural diagram of a line terminal of the line concentrator of the present invention.
FIG. 10 is a schematic diagram of the structure of the middle line control end according to the present invention.
FIG. 11 is a schematic view of a pressure test piece according to the present invention.
In the figure: 1. a test bench; 2. an automatic wire feeding assembly; 21. a positioning end; 211. a wire limiting member; 212. an arc-shaped control rod; 22. a line concentrator terminal; 221. a cylindrical winding member; 222. a movable pressing member; 23. a middle line control end; 231. a wire control member; 232. a slider; 3. testing the component; 31. a stretching shaft; 32. a push rod; 33. a pressure test piece; 4. a placement groove; 5. an upper limiting member; 6. a front stopper; 7. a rear stop; 8. a conversion component; 81. a lateral receiving member; 82. converting the rack; 83. a switching gear set; 9. unifying the pressing pieces; 10. a tightener; 11. unifying the pushing pieces; 12. unifying the adjusting components; 121. an adjusting sleeve; 122. adjusting a rod; 13. unifying the sliding rods; 14. the wire releasing rods are unified; 15. a stabilizing contact; 16. through the slot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2, 3, 4 and 5, a device for testing the performance of a thread clamp of a sewing machine comprises a test table 1, wherein a plurality of test units are arranged on the test table 1, each test unit comprises a fixing portion, an upper thread testing portion and a thread releasing portion, the fixing portion is used for fixing the thread clamp, as shown in fig. 5, in the fixing process, the thread clamp is placed into the fixing portion from top to bottom, a thread clamping piece on the fixed thread clamp is in a suspended state, the upper thread testing portion comprises an automatic thread feeding assembly 2 and a test assembly 3, the automatic thread feeding assembly 2 comprises two positioning ends 21, a test thread sequentially passes through the two positioning ends 21, the positioning ends 21 are respectively positioned at the left side and the right side of the thread clamping piece, in the thread feeding process, the positioning ends 21 move from bottom to top, the moving track is arc-shaped, and as shown in fig. 4 and 5, in the upward moving process of the positioning ends 21, the test wire is automatically placed on the wire clamp, the automatic wire feeding assembly 2 further comprises two line concentration control ends 22 and two middle line control ends 23, the line concentration control ends 22 are respectively connected with two ends of the test wire, the line concentration control ends 22 can fix and roll the test wire, the middle line control ends 23 are respectively positioned between the line concentration control ends 22 and the positioning ends 21 adjacent to the line concentration control ends, the middle line control ends 23 store or release the test wire in a quantitative mode, the test assembly 3 is used for testing the test wire state in a line clamping state and a line releasing state, during the performance test of the wire clamp, the wire clamp is firstly placed into the fixing part from top to bottom to be fixed, then the test wire is automatically placed on the wire clamp through the positioning ends 21, in the wire releasing process, the middle line control ends 23 release the originally stored wire, the requirement of the positioning ends 21 is supplemented, and after the wire feeding is completed, the testing component 3 simulates the using process of the testing wire to test the state of the testing wire, and determines whether the testing wire can be in a normal using state, then the wire loosening process is simulated through the wire loosening part, the ejector rod is pushed to jack the wire loosening piece to enable the wire clamping piece to loosen the testing wire, and then the testing component 3 tests the testing wire in the wire loosening state to determine whether the testing wire is in a normal wire loosening state.
Referring to fig. 3, 4 and 5, the fixing portion includes a placing groove 4 with an upward opening, an upper limiting member 5, a front limiting member 6 and a rear limiting member 7, the upper limiting member 5 is elastically inserted into the placing groove 4 and limits the wire clamper from above, the front limiting member 6 and the rear limiting member 7 limit the clamping from front and rear directions, respectively, as shown in fig. 5, in the process of fixing the wire clamper, the wire clamper is placed in from the opening of the placing groove 4, when the wire clamper passes through the upper limiting member 5, a certain pressure is applied on the wire clamper to separate the upper limiting member 5, the wire clamper passes through the upper limiting member 5 smoothly, then the upper limiting member 5 moves to above the wire clamper under the action of the elastic force to limit the wire clamper, the positioning end 21 includes a wire limiting member 211 and an arc-shaped control rod 212, the wire limiting member 211 is connected to the upper end of the arc-shaped control rod 212, the wire limiting member 211 includes two wire limiting columns, the arc control rod 212 and the wire pressing sheet are coaxial and are rotatably connected on the test bench 1, as shown in fig. 5, the arc control rod 212 rotates upwards to drive the wire limiting piece 211 to move upwards to simulate the use state of the test wire to place the test wire on the wire clamping device, the test bench 1 is provided with a conversion component 8 for controlling the arc control rod 212 to rotate, the conversion component 8 comprises a transverse receiving piece 81, a conversion rack 82 and a conversion gear group 83, the transverse receiving piece 81 is connected on the test bench 1 in an up-and-down sliding manner, the conversion rack 82 is symmetrically connected on the transverse receiving piece 81 in a left-and-right manner, the conversion rack 82 is elastically and slidably connected on the test bench 1, the transverse receiving piece 81 is respectively meshed with the corresponding arc control rod 212 through the conversion gear group 83, in the process that the wire clamping device is placed into the placing groove 4 from top to bottom, the transverse receiving piece 81 slides downwards under the pressure of the wire clamping device, in the process that the transverse receiving piece slides downwards, drive conversion gear train 83 through conversion rack 82 and rotate, synchronous drive arc control lever 212 of conversion gear train 83 upwards rotates, accomplish fixed back when the fixing device, arc control lever 212 just drives limit line spare 211 on it and moves to the assigned position, otherwise, after horizontal receiving part 81 has lost the fixing device pressure, reset under the effect of elastic force, arc control lever 212 downwards rotates under the effect of conversion gear train 83, to sum up, be in the same place fixing device fixing process and the combination of last line process scientific and reasonable, the efficiency and the degree of automation of going on the line have further been improved.
Referring to fig. 4, 5, 7 and 8, the upper limiting member 5 includes a sliding portion and an attaching portion, the attaching portion is slidably connected in the placement groove 4 through the sliding portion, as shown in fig. 4 and 8, when the wire clamp is fixed, the attaching portion is attached to a corresponding position of the wire clamp to limit and fix the wire clamp, the testing table 1 is provided with a uniform pressing member 9, the uniform pressing member 9 is connected with a plurality of tightening members 10, the tightening members 10 are used for controlling the upper limiting member 5 to press the wire clamp, as shown in fig. 8, the tightening members 10 are sliding blocks with inclined abutting surfaces, the sliding blocks are slidably inserted on the testing table 1 up and down, after all the testing units are placed with the wire clamp, the tightening members 10 are synchronously driven to slide down through the uniform pressing member 9, the tightening members 10 abut against the upper limiting member 5 through the inclined abutting surfaces, so that the upper limiting member 5 presses and fixes the wire clamp, thereby improving the stability of placing the wire clamp, when the wire clamping device needs to be taken down, the unified lower pressing piece 9 needs to be lifted upwards firstly so that the tightening piece 10 does not apply pressure to the upper limiting piece 5 any more; the front limiting piece 6 is connected to the test board 1 in a front-back sliding manner, the front limiting piece 6 is used for limiting and fixing an adjusting cap in front of the wire clamp, a uniform pushing piece 11 is connected to the test board 1 in a front-back sliding manner, the uniform pushing piece 11 is used for controlling the front limiting piece 6 to slide back and forth, after the wire clamp is fixed by the upper limiting piece 5 from the upper side, the uniform pushing piece 11 synchronously drives the front limiting piece 6 to slide towards the wire clamp, so that the front limiting piece 6 fixes the adjusting cap, the wire clamp is further fixed, a uniform adjusting assembly 12 is arranged between the front limiting piece 6 and the test board 1, the uniform adjusting assembly 12 comprises an adjusting sleeve 121 and an adjusting rod 122, the adjusting rod 122 is connected to the test board 1 in a left-right sliding manner, the adjusting sleeve 121 is respectively sleeved on the front limiting piece 6, and the adjusting sleeve 121 is engaged and connected to the adjusting rod 122 as shown in fig. 7, after the front limiting part 6 fixes the adjusting cap, the adjusting rod 122 slides left and right to control the rotation of the adjusting sleeve 121, the adjusting cap is driven to rotate by the rotation of the adjusting sleeve 121, the rotation of the adjusting cap can control the clamping force of the clamping sheet, and further the function of the wire clamping device under different clamping forces can be tested.
Referring to fig. 4 and 10, the middle wire control end 23 includes a wire control member 231 and a sliding member 232, the wire control member 231 is slidably connected to the test stand 1 through the sliding member 232, the wire control element 231 is driven by the sliding element 232 to slide to control the tension and the release of the test wire, the test wire passes through the wire control element 231, during the upward movement of the positioning end 21, the thread control member 231 also moves upward, supplementing the amount of thread required for the upward movement of the positioning end 21, when the positioning end 21 moves to a predetermined position, the test wire is in a normally tensioned state, and at this time, no force is applied to the test wire by the wire control member 231, during the subsequent performance test, the control device 231 will not affect the test process and the result, otherwise, when the positioning end 21 is reset, the sliding part 232 drives the wire control part 231 to reset, so that the test wire is still in a normal tensioning state, and the wire amount required by the upward movement of the positioning end 21 is supplemented conveniently and stably in time.
Referring to fig. 10, the test board 1 is connected to a unified sliding rod 13, the unified sliding rod 13 is vertically and slidably connected to the test board 1, and the sliding members 232 are connected to the unified sliding rod 13, and the sliding of the sliding members 232 is synchronously controlled by the unified sliding rod 13.
Referring to fig. 4 and 9, the wire-collecting control end 22 includes a cylindrical winding member 221 with a pressing groove and a movable pressing member 222 with a curved surface, the movable pressing member 222 corresponds to the pressing groove, the cylindrical winding member 221 is rotatably connected to the testing table 1, the movable pressing member 222 is slidably connected to the cylindrical winding member 221, during the testing process of the wire-clamping device, a certain amount of test wire is selected, and two ends of the test wire are respectively pressed onto the corresponding cylindrical winding members 221 by the movable pressing member 222, and the cylindrical winding member 221 is rotated to wind part of the test wire onto the cylindrical winding member 221, as shown in fig. 4, during the testing process, one end of the cylindrical winding member 221 can freely rotate, and the other end of the cylindrical winding member 221 is in a fixed state, which facilitates the replacement of the test wire, thereby facilitating the testing of the invention for test wires of different diameters and different materials, and has the advantage of high stability of the test wire placement, wherein the press-fit ends of the movable press-fit member 222 and the cylindrical rolling member 221 are wavy.
Referring to fig. 2, 4 and 11, the testing assembly 3 includes an opening shaft 31, a pushing rod 32 and a pressure testing piece 33, the opening shaft 31 and the pushing rod 32 are slidably connected to the testing table 1, the opening shaft 31 is connected to the pushing rod 32 through the pressure testing piece 33, during the testing process, when the wire clamp is placed fixedly and the testing wire is in a normally tensioned state, the pushing rod 32 is started to drive the opening shaft 31 to move, so that the opening shaft 31 applies a tensioning force to the testing wire, at this time, the pressure applied to the opening shaft 31 by the pressure testing piece 33 is tested, the testing of the clamping performance of the wire clamp is completed by testing the pressure value applied to the opening shaft 31, as shown in fig. 4 and 11, the normal clamping force of the wire clamp is set to be one, when the opening shaft 31 opens the testing wire, the normal pressure value is two, and when the actual value of the opening shaft 31 is greater than two, the clamping force of the wire clamping device is over large, when the actual pressure value of the tension shaft 31 is zero, the test wire is broken due to over large tension force, and the actual pressure value of the tension shaft 31 is smaller than two generally because the test wire is in a normal tension state before testing.
Referring to fig. 3 and 6, the thread loosening part comprises a uniform thread loosening rod 14 and a stable contact member 15, the stable contact member 15 is connected to the uniform thread loosening rod 14 and is in one-to-one correspondence with the thread clamping device, the stable contact member 15 is a limiting channel with a horn-shaped connecting port, a through groove 16 is formed in the horn-shaped connecting port, in the process that the fixing part is placed into the thread clamping device from top to bottom, the exposed ejector rod part on the thread clamping device is placed into the limiting channel through the through groove 16, in the thread loosening process, the uniform thread loosening rod 14 drives the ejector rod to jack up a thread loosening piece through the stable contact member 15 to complete thread loosening, then the testing line is tested again through the testing component 3, and whether the thread loosening is completed by the thread clamping device is judged according to the pressure value received by the tension shaft 31.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a sewing machine thread trapper capability test device, includes testboard (1), its characterized in that: the testing table (1) is provided with a plurality of testing units, each testing unit comprises a fixing part, an on-line testing part and an off-line part, the fixing part is used for fixing the wire clamping device, and the wire clamping sheet on the wire clamping device is in a suspended state after the wire clamping device is fixed;
the wire feeding testing part comprises an automatic wire feeding assembly (2) and a testing assembly (3), the automatic wire feeding assembly (2) comprises two positioning ends (21), the testing wire sequentially passes through the two positioning ends (21), the positioning ends (21) are respectively positioned on the left side and the right side of a wire clamping piece, the positioning ends (21) move from bottom to top in the wire feeding process, the moving track is arc-shaped, the automatic wire feeding assembly (2) further comprises two wire collecting control ends (22) and two middle wire control ends (23), the wire collecting control ends (22) are respectively connected to the two ends of the testing wire, the wire collecting control ends (22) can fix and wind the testing wire, the middle wire control ends (23) are respectively positioned between the wire collecting ends (22) and the positioning ends (21) adjacent to the wire collecting control ends, and the middle wire control ends (23) store or release the testing wire in a quantitative mode;
the testing component (3) is used for testing the testing line state under the line clamping state and the line releasing state;
the thread loosening part is used for pushing the ejector rod, and the thread loosening sheet is jacked up by the ejector rod to enable the thread clamping sheet to loosen the test thread.
2. The sewing machine thread gripper performance testing device of claim 1, wherein: the fixing part comprises a placing groove (4) with an upward opening, an upper limiting piece (5), a front limiting piece (6) and a rear limiting piece (7), the upper limiting piece (5) is elastically inserted into the placing groove (4) and limits the wire clamping device from the upper side, the front limiting piece (6) and the rear limiting piece (7) are used for limiting the wire clamping device from the front direction and the rear direction respectively, a positioning end (21) comprises a wire limiting piece (211) and an arc-shaped control rod (212), the wire limiting piece (211) is connected to the upper end of the arc-shaped control rod (212), the arc-shaped control rod (212) and the wire clamping piece are coaxial and are rotatably connected to the testing platform (1), a conversion assembly (8) for controlling the arc-shaped control rod (212) to rotate is arranged on the testing platform (1), and the conversion assembly (8) comprises a transverse bearing piece (81) and a conversion rack (82); and the transverse bearing pieces (81) are connected to the test board (1) in a vertical sliding mode, the conversion racks (82) are connected to the transverse bearing pieces (81) in a bilateral symmetry mode, and the transverse bearing pieces (81) are meshed with the corresponding arc-shaped control rods (212) through the conversion gear sets (83) respectively.
3. The sewing machine thread gripper performance testing device of claim 2, wherein: go up spacing piece (5) including sliding part and laminating portion, laminating portion passes through sliding part sliding connection in standing groove (4), be provided with unified pushing down piece (9) on testboard (1), be connected with a plurality of tighteners (10) on unified pushing down piece (9), tightener (10) are used for controlling spacing piece (5) and compress tightly the thread trapper, sliding connection is on testboard (1) around preceding spacing piece (6), sliding connection has unified propelling movement spare (11) around on testboard (1), be provided with unified adjusting part (12) between preceding spacing piece (6) and testboard (1), unified adjusting part (12) are including adjusting sleeve (121) and regulation pole (122), adjust pole (122) horizontal sliding connection on testboard (1), adjusting sleeve (121) overlaps respectively and establishes on preceding spacing piece (6) and adjusting sleeve (121) and all meshes the connection on adjusting pole (122).
4. The sewing machine thread gripper performance testing device of claim 1, wherein: the middle wire control end (23) comprises a wire control piece (231) and a sliding piece (232), the wire control piece (231) is connected to the test bench (1) in a sliding mode through the sliding piece (232), and the sliding piece (232) drives the wire control piece (231) to control the tensioning and loosening of the test wire.
5. The device for testing the performance of the thread trapper of the sewing machine according to claim 4, characterized in that: the test bench is characterized in that a unified sliding rod (13) is connected to the test bench (1), the unified sliding rod (13) is connected to the test bench (1) in a sliding mode, and sliding pieces (232) are connected to the unified sliding rod (13).
6. The device for testing the performance of the thread trapper of the sewing machine according to claim 1, characterized in that: the line concentration control line end (22) comprises a cylindrical winding part (221) with a pressing groove and a movable pressing part (222) with an arc surface, the movable pressing part (222) corresponds to the pressing groove, the cylindrical winding part (221) is rotatably connected to the test bench (1), and the movable pressing part (222) is slidably connected to the cylindrical winding part (221).
7. The device for testing the performance of the thread trapper of the sewing machine according to claim 1, characterized in that: the test component (3) comprises a bracing shaft (31), a pushing rod (32) and a pressure test piece (33), the bracing shaft (31) and the pushing rod (32) are connected on the test bench (1) in a sliding mode, and the bracing shaft (31) is connected on the pushing rod (32) through the pressure test piece (33).
8. The sewing machine thread gripper performance testing device of claim 1, wherein: the pine line portion is including unifying pine line pole (14) and stabilizing contact (15), and stabilizing contact (15) and connecting on unified pine line pole (14), and with the trapper one-to-one, stabilize spacing passageway of contact (15) for having loudspeaker form connector, seted up on the loudspeaker form connector through groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210761196.0A CN115096574A (en) | 2022-06-30 | 2022-06-30 | Performance testing device for thread clamping device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210761196.0A CN115096574A (en) | 2022-06-30 | 2022-06-30 | Performance testing device for thread clamping device of sewing machine |
Publications (1)
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| CN111334944A (en) * | 2020-03-20 | 2020-06-26 | 徐州力达缝纫设备制造有限公司 | Sewing machine with lead frame |
| CN111334945A (en) * | 2019-12-31 | 2020-06-26 | 浙江美机缝纫机有限公司 | Thread clamping tension adjusting device of sewing machine |
| CN211085995U (en) * | 2019-11-11 | 2020-07-24 | 东莞市科雷明斯智能科技有限公司 | Test line mechanism of blade sharpness test machine |
| CN112196959A (en) * | 2020-10-09 | 2021-01-08 | 董续军 | Belt tension degree automatic regulating device for sewing machine |
| CN212505319U (en) * | 2020-05-06 | 2021-02-09 | 李宁（中国）体育用品有限公司 | Sewing cooperation structure and sewing machine |
| CN216770661U (en) * | 2021-12-03 | 2022-06-17 | 南京翼军祖源电力设备有限公司 | Hand capstan machine belt elasticity detection subassembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB365259A (en) * | 1930-12-05 | 1932-01-21 | Richard Cecil Boyce | Improvements in apparatus for textile testing |
| JPH06210085A (en) * | 1993-01-14 | 1994-08-02 | Nippon Denpa Kk | Thread snap detector of sewing machine |
| CN202402579U (en) * | 2011-11-29 | 2012-08-29 | 东莞市飞越机械有限公司 | Belt elasticity adjusting device |
| CN203080254U (en) * | 2013-01-14 | 2013-07-24 | 东华大学 | Contact-type sewing machine upper thread dynamic tension measuring device |
| CN104963124A (en) * | 2015-07-16 | 2015-10-07 | 合肥奥瑞数控科技有限公司 | Template sewing machine achieving automatic adjustment of thread tension |
| CN105937101A (en) * | 2016-06-24 | 2016-09-14 | 杰克缝纫机股份有限公司 | Sewing machine and broken stitch detection mechanism thereof |
| CN110438669A (en) * | 2019-07-19 | 2019-11-12 | 珠海合和服装有限公司 | A kind of online sewing machine and its management system based on technology of Internet of things |
| CN211085995U (en) * | 2019-11-11 | 2020-07-24 | 东莞市科雷明斯智能科技有限公司 | Test line mechanism of blade sharpness test machine |
| CN111334945A (en) * | 2019-12-31 | 2020-06-26 | 浙江美机缝纫机有限公司 | Thread clamping tension adjusting device of sewing machine |
| CN111334944A (en) * | 2020-03-20 | 2020-06-26 | 徐州力达缝纫设备制造有限公司 | Sewing machine with lead frame |
| CN212505319U (en) * | 2020-05-06 | 2021-02-09 | 李宁（中国）体育用品有限公司 | Sewing cooperation structure and sewing machine |
| CN112196959A (en) * | 2020-10-09 | 2021-01-08 | 董续军 | Belt tension degree automatic regulating device for sewing machine |
| CN216770661U (en) * | 2021-12-03 | 2022-06-17 | 南京翼军祖源电力设备有限公司 | Hand capstan machine belt elasticity detection subassembly |
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