CN202337881U - Vertical swinging mechanism for two synchronous needle bars - Google Patents
Vertical swinging mechanism for two synchronous needle bars Download PDFInfo
- Publication number
- CN202337881U CN202337881U CN2011204991039U CN201120499103U CN202337881U CN 202337881 U CN202337881 U CN 202337881U CN 2011204991039 U CN2011204991039 U CN 2011204991039U CN 201120499103 U CN201120499103 U CN 201120499103U CN 202337881 U CN202337881 U CN 202337881U
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- CN
- China
- Prior art keywords
- balancing point
- needle
- needle bar
- connecting rod
- swinging
- Prior art date
- 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.)
- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a vertical swinging mechanism for two synchronous needle bars, which is arranged on one side of a case and comprises a main shaft, a swinging-needle connecting rod, a turbine disc and a needle bar seat, wherein the middle part of the main shaft is provided with an upper spiral gear, a lower spiral gear and a triangular cam, and a swinging-needle eccentric shaft is arranged below the main shaft; the middle part of the swinging-needle connecting rod is provided with a fork, and a sliding clamp is arranged on the triangular cam; the turbine disc is fixed on the front wall of the case, and a sliding block, a round nut, a nut, a swinging-needle spanner and a swinging-needle indicating plate are arranged on the outside of the case; and the upper end of the needle bar seat is provided with a sliding chute which is fixed at the front end of the case by a needle-bar swinging fixed frame. According to the utility model, an operating mode in which a needle bar of a zigzag sewing machine swings leftwards and rightwards to carry out oblique needling is changed into an operating mode of vertical needling, therefore, the sewing performance for thick materials is enhanced, and the service life of parts is extended; and because a loading and feeding mechanism is added, loading and unloading can be performed synchronously, feeding is smooth, stitches are uniform, and the quality of products is improved.
Description
Technical field
The utility model relates to industrial sewing machine, promptly a kind of two synchronous shank vertical oscillation mechanisms.
Background technology
Existing general tortuous drive gear of sewing machine is the tortuous at a high speed mechanism of vacillating now to the left, now to the right of stitching; This mechanism is as shown in Figure 1; By driven by motor main shaft 1; Drive in regular turn and go up helical gear 2, following helical gear 3, triangular cam 4, bar fork 5, chute 6, chute cover 7, balancing point frame 8, balancing point suspention axle 9 and diagonal stabbing shank 10, amplitude of oscillation regulating wheel 11 and scale indicator board 12 are fixed on the casing, drive shank and wave the purpose that reaches tortuous seam.The special-purpose shank mechanism of vacillating now to the left, now to the right appears on the market for many years, but its unreasonable structure exists when shank moves up and down and wave angle, and bad to the sewing performance of thick material, part is prone to loosening, and Sewing machines is short service life.Another shortcoming of the tortuous Sewing machines of tradition is not go up feed mechanism, and top material piece feeding is unstable, expects that with the bottom piece feeding is asynchronous, sew up out-of-flatness, stitching is inhomogeneous sometimes.
Summary of the invention
In order to overcome shank diagonal stabbing and the uneven shortcoming of last feeding, the utility model provides a kind of two synchronous shank vertical oscillation mechanisms of high speed complications Sewing machines.
This two synchronous shank vertical oscillation mechanisms are installed in casing one side, comprise main shaft, balancing point connecting rod, wheel disc and needle bar seat, it is characterized in that:
A, main shaft: there are last helical gear 2, helical gear 3 and triangular cam 4 down in main shaft 1 middle part; The main shaft below is provided with balancing point eccentric shaft 13; Following helical gear 3, triangular cam 4 and bearing 15 are arranged on the balancing point eccentric shaft 13, and last helical gear 2 meshes with following helical gear 3, and balancing point eccentric shaft 13 is fixed on the casing front and rear wall; The back lash is regulated by balancing point eccentric shaft 13, and the end play of balancing point eccentric shaft is regulated by bearing 15 and packing ring 16;
B, balancing point connecting rod: the centre of balancing point connecting rod 14 is prongs; The slidingtype pincers place on the triangular cam 4; Right-hand member is an axis hole, and adapter sleeve 36 is arranged in the hole, and amplitude of oscillation axle 18 penetrates swing span 19 and is loaded in the adapter sleeve 36; Balancing point connecting rod 14 left end axis holes connect pin and send crank axle 26, pin to send crank 27, connecting plate 28, adapter sleeve 29 and needle bar seat 32, and connecting plate 28 upper shaft holes and oval hole and needle bar seat 32 are used screw lock;
C, wheel disc: transmission triangular cam 4 moves up and down balancing point connecting rod 14; Send crank 27 to swing through pin; Be transformed into side-to-side movement thereby making moves up and down; Balancing point frame connecting rod 17 penetrates swing span 19 adapter sleeve 36 of packing into; Swing span 19 passes wheel disc 20 and connects sliding shoe 21, round nut 22, nut 23, balancing point wrench 24 and balancing point indicator board 25, and wheel disc 20 is fixed on the casing antetheca, and sliding shoe 21, round nut 22, nut 23, balancing point wrench 24 and balancing point indicator board 25 are installed on the casing outside;
D, needle bar seat: there is a chute needle bar seat 32 upper ends; Be fixed in the casing front end with shank swing fixed mount 34, the needle bar axle head penetrates the casing axis hole, an oval hole is arranged in order to regulate position, the left and right sides on the connecting plate 28; Two holes are up and down arranged on the needle bar seat 32; In shank 35 is housed, active joint 33 is assembled in shank 35 middle parts, and fixing shank 35.
The utility model changes the vacillate now to the left, now to the right working method of diagonal stabbing of tortuous needle bar of sewing machine the working method of the pin that vertically falls into; Sewing performance to thick material strengthens, and prolong the service life of parts, owing to increased last feed mechanism; Make that the loading and unloading piece is synchronous; Feeding is smooth, and stitching is even, and product quality improves.
Description of drawings
Fig. 1 is traditional tortuous Sewing machines drive mechanism sketch map
Fig. 2 is the utility model drive mechanism sketch map
Fig. 3 is the utility model drive mechanism decomposing schematic representation
Fig. 4 is the utility model drive mechanism scheme of installation
Sequence number among the figure and title: 1, main shaft, 2, go up helical gear, 3, helical gear down, 4, triangular cam, 5, bar fork, 6, chute; 7, chute cover, 8, the balancing point frame, 9, balancing point suspention axle, 10, the diagonal stabbing shank, 11, amplitude of oscillation hand changes regulating wheel, 12, amplitude of oscillation indicator board; 13, balancing point eccentric shaft, 14, the balancing point connecting rod, 15, bearing, 16, packing ring, 17, balancing point frame connecting rod, 18, amplitude of oscillation axle; 19, swing span, 20, wheel disc, 21, sliding shoe, 22, round nut, 23, nut, 24, the balancing point wrench; 25, balancing point indicator board, 26, pin send crank axle, 27, pin send crank, 28, connecting plate, 29, adapter sleeve, 30, collar; 31, needle bar axle sleeve, 32, the needle bar seat, 33, active joint, 34, shank swing fixed mount, 35, shank, 36, adapter sleeve.
The specific embodiment
Below in conjunction with accompanying drawing, details are as follows to the utility model specific embodiment:
The transmission principle of the shank left and right sides vertical movement mechanism of the utility model is done following the description: in Fig. 2,3,4; Main shaft 1 drives shank 35, up and down helical gear 2,3 and triangular cam 4 motions the time, drives balancing point connecting rod 14 and move up and down, with balancing point eccentric shaft 13 adjustment gear clearances; With bearing 15, packing ring 16 adjustment end plays; When balancing point connecting rod 14 moves up and down, and drive pin and send crank 27 to swing, and through connecting plate 28 drive needle bar seats 32 move left and right; Shank 35 is installed in the needle bar seat 32, along with moving and the enforcement move left and right of needle bar seat 32, shank swing fixed mount 34.The function of swing span 19 is: when balancing point connecting rod 17, amplitude of oscillation axle 18 vertical major, the amplitude of oscillation makes zero, and can reach the effect of straight line sewing; Adjusting amplitude of oscillation size clockwise rotates balancing point handle 24, and amplitude of oscillation axle, swing span angle of inclination are strengthened; With the balancing point indicating positions, reach the purpose of the control left and right sides amplitude of oscillation, the function of connecting plate 28 is: when regulating position, shank 35 left and right sides; Connecting plate 28 left side mounting holes can be regulated the left-right symmetric position, unlikelyly cause the monolateral swing of taking back and taking over.
Claims (1)
1. two synchronous shank vertical oscillation mechanisms are installed in casing one side, comprise main shaft, balancing point connecting rod, wheel disc and needle bar seat, it is characterized in that:
A, main shaft: there are last helical gear (2), following helical gear (3) and triangular cam (4) in main shaft (1) middle part; The main shaft below is provided with balancing point eccentric shaft (13); Following helical gear (3), triangular cam (4) and bearing (15) are arranged on the balancing point eccentric shaft (13), last helical gear (2) and following helical gear (3) engagement, balancing point eccentric shaft (13) is fixed on the casing front and rear wall; The back lash is regulated by balancing point eccentric shaft (13), and the end play of balancing point eccentric shaft is regulated by bearing (15) and packing ring (16);
B, balancing point connecting rod: the centre of balancing point connecting rod (14) is a prong; The slidingtype pincers place on the triangular cam (4); Right-hand member is an axis hole, and adapter sleeve (36) is arranged in the hole, and amplitude of oscillation axle (18) penetrates swing span (19) and is loaded in the adapter sleeve (36); Balancing point connecting rod (14) left end axis hole connects pin and send crank axle (26), pin to send crank (27), connecting plate (28), adapter sleeve (29) and needle bar seat (32), and connecting plate (28) upper shaft hole and oval hole and needle bar seat (32) are used screw lock;
C, wheel disc: transmission triangular cam (4) moves up and down balancing point connecting rod (14); Send crank (27) to swing through pin; Be transformed into side-to-side movement thereby making moves up and down; Balancing point frame connecting rod (17) penetrates swing span (19) adapter sleeve (36) of packing into; Swing span (19) passes wheel disc (20) and connects sliding shoe (21), round nut (22), nut (23), balancing point wrench (24) and balancing point indicator board (25), and wheel disc (20) is fixed on the casing antetheca, and sliding shoe (21), round nut (22), nut (23), balancing point wrench (24) and balancing point indicator board (25) are installed on the casing outside;
D, needle bar seat: there is a chute needle bar seat (32) upper end; Swing fixed mount (34) with shank and be fixed in the casing front end, the needle bar axle head penetrates the casing axis hole, an oval hole is arranged in order to regulate position, the left and right sides on the connecting plate (28); Two holes are up and down arranged on the needle bar seat (32); In shank (35) is housed, active joint (33) is assembled in shank (35) middle part, and fixing shank (35).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204991039U CN202337881U (en) | 2011-12-05 | 2011-12-05 | Vertical swinging mechanism for two synchronous needle bars |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204991039U CN202337881U (en) | 2011-12-05 | 2011-12-05 | Vertical swinging mechanism for two synchronous needle bars |
Publications (1)
Publication Number | Publication Date |
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CN202337881U true CN202337881U (en) | 2012-07-18 |
Family
ID=46486580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2011204991039U Expired - Fee Related CN202337881U (en) | 2011-12-05 | 2011-12-05 | Vertical swinging mechanism for two synchronous needle bars |
Country Status (1)
Country | Link |
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CN (1) | CN202337881U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104060396A (en) * | 2014-06-30 | 2014-09-24 | 常州市龙春针织机械科技有限公司 | Movement control cam for rear guide bar cradle |
-
2011
- 2011-12-05 CN CN2011204991039U patent/CN202337881U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104060396A (en) * | 2014-06-30 | 2014-09-24 | 常州市龙春针织机械科技有限公司 | Movement control cam for rear guide bar cradle |
CN104060396B (en) * | 2014-06-30 | 2016-05-18 | 常州市第八纺织机械有限公司 | Rear sley bar reel cage motion control cam |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20161205 |