CN112853633A - Feed lifting mechanism with adjustable feed lifting height and flat seaming machine - Google Patents
Feed lifting mechanism with adjustable feed lifting height and flat seaming machine Download PDFInfo
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- CN112853633A CN112853633A CN201911193844.1A CN201911193844A CN112853633A CN 112853633 A CN112853633 A CN 112853633A CN 201911193844 A CN201911193844 A CN 201911193844A CN 112853633 A CN112853633 A CN 112853633A
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- tooth
- feed lifting
- lifting
- feed
- shaft
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
Abstract
The invention provides a feed lifting mechanism with adjustable feed lifting height, which comprises a main shaft, a feed lifting rack, a feed lifting tooth, a differential feed lifting rack, a differential tooth, a feed lifting tooth shaft, a first feed lifting tooth transmission component connected between the main shaft and the feed lifting tooth shaft, and a second feed lifting tooth transmission component connected between the feed lifting tooth shaft and the feed lifting rack and between the feed lifting tooth shaft and the differential feed lifting rack, wherein the first feed lifting tooth transmission component comprises a feed lifting tooth eccentric sleeve sleeved on the main shaft, an adjuster component, a feed lifting tooth connecting rod and a feed lifting tooth crank fixed on the feed lifting tooth shaft, one end of the feed lifting tooth connecting rod is rotatably sleeved on the periphery of the feed lifting tooth eccentric sleeve, and the other end of the feed lifting tooth connecting rod is hinged with the feed lifting tooth crank; when the feed dog and the feed lifting tooth of the differential tooth are adjusted, the main shaft is rotated, the eccentric distance of the feed lifting tooth between the main shaft and the eccentric sleeve of the feed lifting tooth is changed through the adjuster assembly, so that the feed lifting tooth height of the feed dog and the differential tooth is changed, the feed lifting tooth height is adaptive to the characteristics of different cloth materials, and the feed efficiency and the feed capacity of the flat seaming machine are improved.
Description
Technical Field
The invention relates to a tooth lifting mechanism with adjustable tooth lifting height and a flat seaming machine.
The invention also relates to a flat seaming machine comprising the feed lifting mechanism.
Background
At present, a main shaft, a feed dog frame and a differential dog frame which are arranged side by side along the axial direction of the main shaft, a feed dog arranged on the feed dog frame, a differential dog arranged on the differential dog frame, a feed mechanism and a feed lifting mechanism are all arranged in a flat seaming machine, for example, the flat seaming machine disclosed in the Chinese patent with the application number of 201510219424.1. The main shaft is connected with the feed dog frame and the differential dog frame through the feed mechanism, and drives the feed dog frame and the differential dog frame to reciprocate back and forth in the horizontal direction, and the movement in the direction controls the needle pitch of the flat seaming machine. The main shaft is connected with the feed dog frame and the differential dog frame through the feed dog lifting mechanism to drive the feed dog frame and the differential dog frame to reciprocate up and down in the vertical direction, the motion in the direction controls the height of a feed dog and the differential dog in the flat seaming machine, namely the height of the feed dog is controlled, and the height of the feed dog is also the distance from the feed dog and the differential dog to the upper surface of the needle plate when the feed dog and the differential dog move to the highest point in the up-down direction. Therefore, the cloth feeding tooth frame and the differential tooth frame do the combined motion of the back-and-forth reciprocating motion and the up-and-down reciprocating motion to drive the cloth feeding tooth and the differential tooth to do the combined motion of the back-and-forth reciprocating motion and the up-and-down reciprocating motion, thereby realizing the cloth feeding. However, the feed lifting tooth height of the existing flat seaming machine is a fixed value set when the flat seaming machine leaves a factory, and the fixed feed lifting tooth height cannot meet the adaptability of different fabrics, so that the fixed feed lifting tooth height reduces the cloth feeding efficiency and the cloth feeding capacity of the flat seaming machine aiming at different fabrics and different fabric thicknesses.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a lifting tooth mechanism with adjustable lifting tooth height, which is capable of adjusting the lifting tooth height.
In order to achieve the purpose, the invention provides a feed lifting mechanism with adjustable feed lifting tooth height, which comprises a main shaft, a feed lifting tooth rack, a feed lifting tooth arranged on the feed lifting tooth rack, a differential tooth arranged on the differential tooth rack, a feed lifting tooth shaft parallel to the main shaft, a first feed lifting tooth transmission assembly connected between the main shaft and the feed lifting tooth shaft, and a second feed lifting tooth transmission assembly connected between the feed lifting tooth shaft and the feed lifting tooth rack and between the feed lifting tooth rack and the differential tooth rack, wherein the first feed lifting tooth transmission assembly comprises a feed lifting tooth eccentric sleeve which is sleeved on the main shaft and is eccentrically arranged with the main shaft, an adjuster assembly which is connected with the main shaft and the feed lifting tooth eccentric sleeve, a feed lifting tooth connecting rod and a feed lifting tooth crank fixed on the feed lifting tooth shaft, one end of the feed lifting tooth connecting rod is rotatably sleeved on the periphery of the feed lifting tooth eccentric sleeve, and the other end of the feed lifting; when the lifting tooth heights of the feed dog and the differential tooth are adjusted, the main shaft is rotated, and the eccentric distance of the lifting tooth between the main shaft and the eccentric sleeve of the lifting tooth is changed through the adjuster assembly.
Furthermore, the tooth lifting mechanism also comprises a separation driving component, and a rotatable adjusting driving component is arranged at the transmission tail end of the separation driving component; the regulator assembly comprises a gear fixed on the main shaft, a regulating slip sheet with a limit gear ring, a regulator sleeved on the main shaft and a stop pin fixed on the gear, wherein the regulator is provided with a main body part concentrically arranged with the main shaft, a regulating slip groove arranged on the main body part and in sliding fit with the regulating slip sheet, a sliding groove arranged on the main body part and a regulating eccentric part extending from the main body part in the direction back to the regulating slip sheet, the stop pin is arranged in the sliding groove in a penetrating manner and is matched with a stop hole on a tooth lifting eccentric sleeve, the tooth lifting eccentric sleeve is rotatably sleeved on the periphery of the regulating eccentric part, and the limit gear ring on the regulating slip sheet is meshed with the gear; when the adjusting driving piece rotates towards the position close to the adjusting sliding piece and acts on the adjusting sliding piece, the adjusting sliding piece slides along the adjusting sliding groove, a limiting gear ring on the adjusting sliding piece is separated from a gear, and then the main shaft is rotated, and the tooth lifting eccentric distance between the main shaft and the tooth lifting eccentric sleeve is changed.
Furthermore, a first return spring is fixedly mounted on the main body portion of the adjuster, and acts on the limit gear ring and applies an acting force towards the gear to the limit gear ring.
Furthermore, the separation driving assembly comprises an adjusting wrench and a wrench shaft which is rotatably arranged in the flat seaming machine shell, the wrench shaft is parallel to the main shaft, and the adjusting wrench and the adjusting driving piece are respectively fixed at two ends of the wrench shaft.
Furthermore, a second reset spring is sleeved on the wrench shaft, and two ends of the second reset spring are respectively connected with the adjusting wrench and the flat seaming machine shell.
Further, the one end of spanner axle is equipped with axle flange portion, spacing mounting groove has been seted up on the terminal surface of axle flange portion, adjust the spanner and have the spanner installation department of adaptation in spacing mounting groove, the spanner installation department is arranged in spacing mounting groove and passes through screw fixed connection with axle flange portion.
Further, the tip of adjusting the driving piece has drive claw portion, the periphery of adjusting the gleitbretter has the joint groove of setting relatively with spacing ring gear, drive claw portion can with joint groove joint.
Furthermore, the lifting tooth connecting rod is connected with the lifting tooth eccentric sleeve through a needle bearing.
Furthermore, a first eccentric shaft section is arranged on the main shaft, and a rotatable first tooth lifting slide block is mounted on the first eccentric shaft section; the second feed lifting transmission assembly comprises a second eccentric shaft section arranged at the end part of the feed lifting shaft and a second feed lifting sliding block rotatably arranged on the second eccentric shaft section, and the feed feeding tooth rack and the differential tooth rack are respectively provided with a first sliding groove in sliding fit with the first feed lifting sliding block and a second sliding groove in sliding fit with the second feed lifting sliding block.
The application also provides a flat seaming machine, wherein the tooth lifting mechanism is installed in the flat seaming machine.
As described above, the tooth lifting mechanism and the flat seaming machine with the adjustable tooth lifting height according to the invention have the following beneficial effects:
this application changes first feed lifting teeth transmission assembly's transmission efficiency through changing the feed lifting teeth eccentricity between main shaft and the feed lifting teeth eccentric bushing, and then changes the feed lifting teeth height of feed lifting teeth and differential tooth, makes the characteristic of feed lifting teeth height adaptation in different cloth to promote the feed conveying efficiency and the feed conveying ability of flat seaming machine, make the flat seaming machine satisfy higher demand of making up.
Drawings
Fig. 1 and fig. 2 are schematic structural views of the tooth lifting mechanism in the present application at different viewing angles.
FIG. 3 is a schematic view of the connection between the main shaft, the eccentric sleeve of the lifting tooth, the adjuster assembly, and the connecting rod of the lifting tooth in the present application.
Fig. 4 is an exploded view of fig. 3, with the first return spring of fig. 3 omitted.
FIG. 5 is a schematic view of the connection between the separation driving assembly and the adjusting slide according to the present application.
Description of the element reference numerals
1 spindle
101 first eccentric shaft section
2 feed dog frame
3 feed dog
4 differential tooth rack
5 differential tooth
6 lifting tooth shaft
61 second eccentric shaft section
7 eccentric cover of tooth lifting
71 stop hole
8 lifting tooth connecting rod
9 lifting rock shaft crank
11 adjustment drive
111 driving pawl
112 driving piece main board
113 connecting plate part
12 gears
13 regulating sliding vane
131 position limiting gear ring
132 clamping groove
133 spring slot
14 regulator
141 main body part
142 adjusting chute
143 sliding groove
144 adjusting the eccentric part
15 stop pin
16 first reset spring
17 adjusting spanner
171 spanner mounting part
18 spanner shaft
181 axle flange part
182 limit mounting groove
19 second reset spring
20 needle roller bearing
21 first lifting tooth slide block
22 second lifting tooth slide block
23 first chute
24 second chute
25 copper sleeve
26 limit retainer ring
27 fixed block
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications.
The present application provides a flat seaming machine having a main shaft 1 with a shaft driven by a main motor, the main shaft 1 being rotatably mounted in a flat seaming machine housing, as shown in fig. 2. For convenience of description, in the following examples, the directions are defined as follows: defining the axial direction of the main shaft 1 as a left-right direction, wherein the direction of the main shaft 1 towards the nose (namely the needle side) of the flat seaming machine is a left direction, and the direction of the main shaft 1 towards the tail of the flat seaming machine is a right direction; defining the moving direction of the cloth as the front direction when the flat seaming machine sews; the direction orthogonal to both the left-right direction and the front-rear direction is the up-down direction.
As shown in fig. 1 and 2, a feed lifting mechanism with adjustable feed lifting height is installed in a flat seaming machine related to the present application, and comprises a main shaft 1 extending left and right, a feed lifting tooth rack 2, a feed lifting tooth 3 fixedly installed on the feed lifting tooth rack 2, a differential tooth rack 4, a differential tooth 5 fixedly installed on the differential tooth rack 4, a feed lifting tooth shaft 6 parallel to the main shaft 1, a first feed lifting tooth transmission assembly and a second feed lifting tooth transmission assembly, wherein the first feed lifting tooth transmission assembly is connected between the main shaft 1 and the feed lifting tooth shaft 6, and the second feed lifting tooth transmission assembly is connected between the feed lifting tooth shaft 6 and the feed lifting tooth rack 2, and the differential tooth rack 4. Particularly, the first feed lifting transmission assembly comprises a feed lifting eccentric sleeve 7 which is sleeved on the main shaft 1 and is eccentrically arranged with the main shaft 1, an adjuster assembly which is connected with the main shaft 1 and the feed lifting eccentric sleeve 7, a feed lifting connecting rod 8 and a feed lifting crank 9 which is fixed on the feed lifting shaft 6, one end of the feed lifting connecting rod 8 is rotatably sleeved on the periphery of the feed lifting eccentric sleeve 7, and the other end of the feed lifting connecting rod 8 is hinged with the feed lifting crank 9 through a pin which extends left and right. In the front-rear direction, the cloth feeding teeth 3, a needle falling hole which is arranged on a needle plate of the flat seaming machine and is penetrated by a needle up and down, and the differential teeth 5 are sequentially arranged from front to back.
When the flat seaming machine sews normally, the regulator component keeps the relative positions of the main shaft 1 and the lifting tooth eccentric sleeve 7, and further keeps the lifting tooth eccentricity between the main shaft 1 and the lifting tooth eccentric sleeve 7, wherein the lifting tooth eccentricity is the distance between the rotation center of the main shaft 1 and the matching center of the same lifting tooth eccentric sleeve 7 and the lifting tooth connecting rod 8. The main motor drives the main shaft 1 to rotate, the main shaft 1 drives the feed lifting tooth shaft 6 to swing through the first feed lifting tooth transmission assembly, the feed lifting tooth shaft 6 drives the feed delivery tooth frame 2 and the differential tooth frame 4 to reciprocate up and down through the second feed lifting tooth transmission assembly, the feed delivery tooth frame 2 drives the feed delivery tooth 3 to reciprocate up and down to enable the feed delivery tooth 3 to execute feed lifting action, and the differential tooth frame 4 drives the differential tooth 5 to reciprocate up and down to enable the differential tooth 5 to execute feed lifting action. Because the eccentric distance of the feed lifting teeth between the main shaft 1 and the eccentric sleeve 7 of the feed lifting teeth is kept unchanged, the swing amplitude of the main shaft 1 for driving the feed lifting teeth shaft 6 to swing through the first feed lifting teeth transmission assembly is unchanged, and the feed lifting teeth height of the feed delivery teeth 3 and the feed lifting teeth height of the differential teeth 5 are respectively kept unchanged. When the lifting tooth height needs to be adjusted, the flat seaming machine stops running, the main shaft 1 is rotated, under the action of the adjuster assembly, the relative positions of the main shaft 1 and the lifting tooth eccentric sleeve 7 are changed, so that the lifting tooth eccentric distance between the main shaft 1 and the lifting tooth eccentric sleeve 7 is changed, the swinging amplitude of the main shaft 1 which drives the lifting tooth shaft 6 to swing through the first lifting tooth transmission assembly is changed, namely the transmission efficiency of the first lifting tooth transmission assembly is changed, and finally the movement amplitude of the lifting tooth shaft 6 which drives the cloth feeding tooth frame 2 and the differential tooth frame 4 to reciprocate up and down through the second lifting tooth transmission assembly is changed, so that the lifting tooth height adjustment of the cloth feeding teeth 3 and the differential tooth 5 is realized, the lifting tooth height is adapted to the characteristics of different cloth, the cloth feeding efficiency and the cloth feeding capacity of the flat seaming machine are improved, and the flat seaming machine meets higher sewing requirements. Therefore, the flat seaming machine has the function of adjusting the height of the lifting teeth, the height of the lifting teeth of the feed teeth 3 and the height of the lifting teeth of the differential teeth 5 of the flat seaming machine are adjusted in a stepless mode within a certain range, different movement tracks of the feed teeth 3 and different movement tracks of the differential teeth 5 are achieved, and the flat seaming machine is suitable for sewing of cloth with different characteristics.
Further, as shown in fig. 1 and 2, the feed lifting mechanism further comprises a separation driving assembly, and the separation driving assembly is provided with a rotatable adjusting driving piece 11 at the transmission end. The preferred construction of the regulator assembly is: as shown in fig. 3 and 4, the adjuster assembly includes a gear 12 fixed and locked on the main shaft 1 by a screw, an adjusting slide 13 with a limit gear ring 131, an adjuster 14 sleeved on the main shaft 1, and a stop pin 15 parallel to the main shaft 1, the gear 12 and the adjuster 14 are arranged side by side along the axial direction of the main shaft 1, the gear 12 is located at the right side of the adjuster 14, the right end of the stop pin 15 is fixed with the gear 12, the adjuster 14 has a main body portion 141 concentrically arranged with the main shaft 1, an adjusting slide groove 142 arranged on the right side surface of the main body portion 141 and slidably engaged with the adjusting slide 13, a slide groove 143 arranged on the main body portion 141 and extending through the main body portion 141 from left to right, and an adjusting eccentric portion 144 integrally extending from the main body portion 141 to the direction opposite to the adjusting slide 13, the stop pin 15 is inserted in the slide groove 143, and the left end of the stop pin 15 is rotatably engaged with a stop hole 71 on the right, the eccentric sleeve 7 of the lifting tooth is rotatably sleeved on the periphery of the eccentric adjusting part 144, the limit gear ring 131 on the adjusting slide sheet 13 is meshed with the gear 12, and the connecting rod 8 of the lifting tooth is connected with the eccentric sleeve 7 of the lifting tooth through the needle bearing 20. The main shaft 1, the adjusting eccentric portion 144 of the adjuster 14, the lift teeth eccentric bushing 7, the needle roller bearing 20, and the lift teeth link 8 are sequentially fitted from inside to outside in the radial direction of the main shaft 1.
When the flat seaming machine sews normally, the adjusting driving piece 11 of the separating driving component is far away from the adjusting sliding piece 13 and does not act on the adjusting sliding piece 13, the limit gear ring 131 on the adjusting sliding piece 13 is meshed with the gear 12, the main motor drives the main shaft 1 to rotate, the main shaft 1 drives the gear 12 to rotate, through the engagement of the limit gear ring 131 and the gear 12, the gear 12 can drive the adjusting slide sheet 13 to rotate together, the adjusting slide sheet 13 can drive the adjuster 14 to rotate together through the matching of the adjusting slide sheet 13 and the adjusting slide groove 142 on the adjuster 14, the gear 12 also drives the tooth lifting eccentric sleeve 7 to rotate together through the stop pin 15, namely, when the flat seaming machine is used for normal sewing, the feed lifting eccentric sleeve 7 rotates along with the main shaft 1, so as to drive the feed lifting connecting rod 8 to swing, the feed lifting connecting rod 8 drives the feed lifting crank 9 to swing, and the feed lifting shaft 6 swings along with the feed lifting crank 9, so as to drive the cloth feeding dental frame 2 and the differential dental frame 4 to reciprocate up and down. When the height of the raised teeth needs to be adjusted, the flat seaming machine stops running, the separation driving component acts, the adjusting driving piece 11 rotates towards the position close to the adjusting sliding piece 13 and acts on the adjusting sliding piece 13 to push the adjusting sliding piece 13 to slide along the adjusting sliding groove 142, and the sliding direction is the direction in which the limiting gear ring 131 is far away from the gear 12, so that the limiting gear ring 131 on the adjusting sliding piece 13 is separated from the gear 12; then, the main shaft 1 rotates by an angle, the main shaft 1 drives the gear 12 to rotate by the angle together, the adjusting slide piece 13 is kept still under the action of the adjusting driving piece 11, the adjuster 14 is kept still as the adjusting slide piece 13, namely, the adjuster 14 and the main shaft 1 rotate relatively, the tooth lifting eccentric sleeve 7 is sleeved on the periphery of an adjusting eccentric part 144 of the adjuster 14, the tooth lifting eccentric sleeve 7 is driven to rotate around the stop pin 15, the relative positions of the main shaft 1 and the tooth lifting eccentric sleeve 7 are changed, and finally the tooth lifting eccentric distance between the main shaft 1 and the tooth lifting eccentric sleeve 7 is changed.
As shown in fig. 3, the first return spring 16 is fixed to the main body portion 141 of the adjuster 14 by a screw, and the first return spring 16 acts on the limit ring gear 131 to apply a biasing force to the limit ring gear 131 toward the gear 12. When the height of the lifting tooth is adjusted, the adjusting driving piece 11 overcomes the spring force of the first return spring 16 and then pushes the adjusting slide piece 13 to slide in the adjusting chute 142 along the direction that the limiting gear ring 131 is far away from the gear 12; after the lifting tooth height adjustment is finished, the adjusting driving piece 11 rotates and resets in the direction away from the adjusting sliding piece 13, and the adjusting sliding piece 13 moves in the adjusting sliding groove 142 in the direction close to the gear 12 along the limiting gear ring 131 under the action of the first resetting spring 16, so that the limiting gear ring 131 is meshed with the gear 12 again to form limiting. Preferably, the outer peripheral surface of the limit ring gear 131 facing away from the gear 12 is opened with a spring notch 133, and one end of the first return spring 16 is located in the spring notch 133 of the limit ring gear 131 and applies a force to the limit ring gear 131 toward the gear 12.
Further, as shown in fig. 2 and 5, the separation driving assembly includes an adjusting wrench 17, and a wrench shaft 18 rotatably installed in the flat seaming machine housing, the wrench shaft 18 being parallel to the main shaft 1 and rotatably installed in the flat seaming machine housing through a copper bush 25, the wrench shaft 18 having a central axis with a fixed position, the adjusting wrench 17 and the adjusting driving member 11 being respectively fixed at left and right ends of the wrench shaft 18. In the front-rear direction, the wrench shaft 18, the main shaft 1 and the feed lifting rock shaft 6 are arranged in sequence from front to rear. In addition, two limit retainer rings 26 respectively abutting against the left end and the right end of the copper sleeve 25 are fixed on the wrench shaft 18, and the two limit retainer rings 26 axially limit the copper sleeve 25. The adjustment wrench 17 is located outside the flat seaming machine housing. The wrench shaft 18 is sleeved with a second reset spring 19, and two ends of the second reset spring 19 are respectively connected with the adjusting wrench 17 and the flat seaming machine shell. When the height of the lifting tooth needs to be adjusted, an operator manually rotates the adjusting wrench 17, the adjusting wrench 17 drives the wrench shaft 18 to rotate together, and the adjusting driving piece 11 rotates together with the wrench shaft 18, so that the adjusting driving piece 11 rotates towards the direction close to the adjusting sliding piece 13, and the adjusting driving piece 11 pushes the adjusting sliding piece 13 to move and abut against the adjusting sliding piece 13; after the lifting tooth height adjustment is finished, the operator releases the adjusting wrench 17, and then the adjusting wrench 17 is reset under the action of the second reset spring 19.
Preferably, the fixing structure between the adjusting wrench 17 and the wrench shaft 18 is: as shown in fig. 5, a shaft flange portion 181 is provided at the left end of the wrench shaft 18, a limit mounting groove 182 is provided on the end surface of the shaft flange portion 181, the adjustment wrench 17 has a wrench mounting portion 171 fitted in the limit mounting groove 182, and the wrench mounting portion 171 is located in the limit mounting groove 182 and is fixedly connected to the shaft flange portion 181 by a screw. The fixing structure between the adjusting driving member 11 and the wrench shaft 18 is: the wrench shaft 18 is fixed with a fixed block 27, the adjusting driving member 11 includes a driving member main plate 112 sleeved on the right end of the wrench shaft 18, and a connecting plate portion 113 integrally extending from the driving member main plate 112, and the connecting plate portion 113 and the fixed block 27 are fixed by screws. In addition, adjust driving piece 11 and be equipped with drive claw portion 111 in the outer end that driving piece mainboard 112 kept away from spanner axle 18, the periphery of adjusting gleitbretter 13 has the joint groove 132 with spacing ring gear 131 relative setting, drive claw portion 111 can with joint groove 132 joint to the realization is lifted tooth height and is adjusted gleitbretter 13 and rotate in-process restriction.
Further, the second feed dog transmission assembly preferably has the structure that: as shown in fig. 1, the second feed dog transmission assembly comprises a second eccentric shaft section 61 arranged at the left end of the feed dog shaft 6, and a second feed dog slider 22 rotatably mounted on the second eccentric shaft section 61, wherein the second eccentric shaft section 61 is eccentric to the feed dog shaft 6; in addition, a first eccentric shaft section 101 which extends leftwards and is eccentric to the main shaft 1 is arranged at the left end of the main shaft 1, and a rotatable first tooth lifting slide block 21 is installed on the first eccentric shaft section 101; the front end sides of the cloth feeding tooth rack 2 and the differential tooth rack 4 are both provided with a first sliding chute 23 which is in sliding fit with the first tooth lifting sliding block 21 and extends forwards and backwards, and the first tooth lifting sliding block 21 is in surface contact with the groove wall of the first sliding chute 23; the rear end sides of the feed dog frame 2 and the differential dog frame 4 are both provided with a second sliding groove 24 which is in sliding fit with the second tooth lifting slide block 22 and extends forwards and backwards, and the groove walls of the second tooth lifting slide block 22 and the second sliding groove 24 are in surface contact. When the flat seaming machine operates, the main shaft 1 drives the feed lifting tooth shaft 6 to swing through the first feed lifting tooth transmission assembly, the feed lifting tooth shaft 6 drives the second feed lifting tooth sliding block 22 to move up and down, the main shaft 1 simultaneously drives the first feed lifting tooth sliding block 21 to move up and down, finally the feed lifting tooth frame 2 and the differential feed lifting tooth frame 4 are driven to move up and down through the first feed lifting tooth sliding block 21 and the second feed lifting tooth sliding block 22, the feed lifting tooth 3 moves up and down along with the feed lifting tooth frame 2, and the differential feed lifting tooth 5 moves up and down along with the differential feed lifting tooth frame 4, so that the feed lifting tooth is realized.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a feed lifting mechanism of feed lifting teeth height adjustable, including main shaft (1), feed lifting teeth frame (2), install feed lifting teeth (3) on feed lifting teeth frame (2), differential tooth frame (4), install differential tooth (5) on differential tooth frame (4), feed lifting teeth axle (6) that parallel with main shaft (1), connect the first feed lifting teeth transmission assembly between main shaft (1) and feed lifting teeth axle (6), and connect and lift lifting teeth axle (6) and feed lifting teeth frame (2), the second feed lifting teeth transmission assembly between differential tooth frame (4), its characterized in that: the first feed lifting tooth transmission assembly comprises a feed lifting tooth eccentric sleeve (7) which is sleeved on the main shaft (1) and is eccentrically arranged with the main shaft (1), an adjuster assembly which is connected with the main shaft (1) and the feed lifting tooth eccentric sleeve (7), a feed lifting tooth connecting rod (8) and a feed lifting tooth crank (9) which is fixed on the feed lifting tooth shaft (6), one end of the feed lifting tooth connecting rod (8) is rotatably sleeved on the periphery of the feed lifting tooth eccentric sleeve (7), and the other end of the feed lifting tooth connecting rod (8) is hinged with the feed lifting tooth crank (9); when the tooth lifting heights of the cloth feeding teeth (3) and the differential teeth (5) are adjusted, the main shaft (1) is rotated, and the tooth lifting eccentric distance between the main shaft (1) and the tooth lifting eccentric sleeve (7) is changed through the adjuster assembly.
2. The tooth lifting mechanism of claim 1, wherein: the device also comprises a separation driving component, wherein a rotatable adjusting driving piece (11) is arranged at the transmission tail end of the separation driving component; the adjuster assembly comprises a gear (12) fixed on the main shaft (1), an adjusting slide sheet (13) with a limiting gear ring (131), an adjuster (14) sleeved on the main shaft (1) and a stop pin (15) fixed on the gear (12), the adjuster (14) is provided with a main body part (141) concentrically arranged with the main shaft (1), an adjusting slide groove (142) arranged on the main body part (141) and in sliding fit with the adjusting slide sheet (13), a slide groove (143) arranged on the main body part (141) and an adjusting eccentric part (144) extending from the main body part (141) to the direction opposite to the adjusting slide sheet (13), the stop pin (15) is arranged in the slide groove (143) in a penetrating manner and matched with a stop hole (71) on the tooth lifting eccentric sleeve (7), and the tooth lifting eccentric sleeve (7) is rotatably sleeved on the periphery of the adjusting eccentric part (144), a limiting gear ring (131) on the adjusting slide sheet (13) is meshed with the gear (12); when the adjusting driving piece (11) rotates towards the position close to the adjusting sliding piece (13) and acts on the adjusting sliding piece (13), the adjusting sliding piece (13) slides along the adjusting sliding groove (142), a limit gear ring (131) on the adjusting sliding piece (13) is separated from a gear (12), and then the main shaft (1) is rotated, and the tooth lifting eccentric distance between the main shaft (1) and the tooth lifting eccentric sleeve (7) is changed.
3. The tooth lifting mechanism of claim 2, wherein: a first return spring (16) is fixedly mounted on a main body part (141) of the adjuster (14), and the first return spring (16) acts on the limit gear ring (131) and applies an acting force towards the gear (12) to the limit gear ring (131).
4. The tooth lifting mechanism of claim 2, wherein: the separating driving assembly comprises an adjusting wrench (17) and a wrench shaft (18) which is rotatably arranged in the flat seaming machine shell, the wrench shaft (18) is parallel to the main shaft (1), and the adjusting wrench (17) and the adjusting driving piece (11) are respectively fixed at two ends of the wrench shaft (18).
5. The tooth lifting mechanism of claim 4, wherein: the spanner shaft (18) is sleeved with a second reset spring (19), and two ends of the second reset spring (19) are respectively connected with the adjusting spanner (17) and the flat seaming machine shell.
6. The tooth lifting mechanism of claim 4, wherein: one end of the wrench shaft (18) is provided with a shaft flange part (181), a limiting installation groove (182) is formed in the end face of the shaft flange part (181), the adjusting wrench (17) is provided with a wrench installation part (171) matched with the limiting installation groove (182), and the wrench installation part (171) is located in the limiting installation groove (182) and is fixedly connected with the shaft flange part (181) through a screw.
7. The tooth lifting mechanism of claim 2, wherein: the tip of adjusting driving piece (11) has drive claw portion (111), the periphery of adjusting gleitbretter (13) has joint groove (132) that set up relatively with spacing ring gear (131), drive claw portion (111) can with joint groove (132) joint.
8. The tooth lifting mechanism of claim 1, wherein: the tooth lifting connecting rod (8) is connected with the tooth lifting eccentric sleeve (7) through a needle bearing (20).
9. The tooth lifting mechanism of claim 1, wherein: a first eccentric shaft section (101) is arranged on the main shaft (1), and a rotatable first tooth lifting slide block (21) is arranged on the first eccentric shaft section (101); the second feed lifting tooth transmission assembly comprises a second eccentric shaft section (61) arranged at the end part of the feed lifting tooth shaft (6) and a second feed lifting tooth sliding block (22) rotatably arranged on the second eccentric shaft section (61), and the feed lifting tooth rack (2) and the differential tooth rack (4) are respectively provided with a first sliding chute (23) in sliding fit with the first feed lifting tooth sliding block (21) and a second sliding chute (24) in sliding fit with the second feed lifting tooth sliding block (22).
10. A flat seaming machine, characterized in that: the flat seaming machine is provided with a tooth lifting mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911193844.1A CN112853633B (en) | 2019-11-28 | 2019-11-28 | Feed lifting mechanism with adjustable feed lifting height and flat seaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911193844.1A CN112853633B (en) | 2019-11-28 | 2019-11-28 | Feed lifting mechanism with adjustable feed lifting height and flat seaming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112853633A true CN112853633A (en) | 2021-05-28 |
| CN112853633B CN112853633B (en) | 2022-07-05 |
Family
ID=75995783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911193844.1A Active CN112853633B (en) | 2019-11-28 | 2019-11-28 | Feed lifting mechanism with adjustable feed lifting height and flat seaming machine |
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Cited By (1)
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| CN114381871A (en) * | 2021-12-27 | 2022-04-22 | 际华三五零六纺织服装有限公司 | Pulsation type deviation-rectifying cloth feeding device of lockstitch sewing machine |
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| CN114381871A (en) * | 2021-12-27 | 2022-04-22 | 际华三五零六纺织服装有限公司 | Pulsation type deviation-rectifying cloth feeding device of lockstitch sewing machine |
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