CN113005662A - Short thread end thread cutting device of column type sewing machine - Google Patents
Short thread end thread cutting device of column type sewing machine Download PDFInfo
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- CN113005662A CN113005662A CN202110415042.1A CN202110415042A CN113005662A CN 113005662 A CN113005662 A CN 113005662A CN 202110415042 A CN202110415042 A CN 202110415042A CN 113005662 A CN113005662 A CN 113005662A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
Abstract
The invention provides a short thread end thread cutting device of a column type sewing machine, relates to the technical field of sewing machine equipment, and aims to solve the problems that when the thread cutting device of the sewing machine is actually used, a knife board and a thread cutting collet are troublesome to install and operate, inconvenient to detach and maintain, the position of the thread cutting collet is not easy to adjust, the thread cutting position is inconvenient to accurately position, and meanwhile, a mechanism for fixing a suture is lacked, so that the suture is easy to slip off in the using process. According to the invention, the rear end of the base plate is fixedly provided with the tangent colleting clamp, the bottom end of the base plate is provided with the two trapezoidal sliding blocks, the trapezoidal sliding blocks are matched with the trapezoidal sliding grooves, and the base plate is connected with the needle plate in a sliding mode through the trapezoidal sliding grooves and locked through the bolts.
Description
Technical Field
The invention belongs to the technical field of sewing machine equipment, and particularly relates to a short thread end thread cutting device of a column type sewing machine.
Background
With the development of the sewing machine technology, the functions of the sewing machine are more and more refined, a plurality of types of sewing machines with different functions are formed according to different requirements of customers, in order to improve the production efficiency, automatic thread cutting devices are provided, in the sewing machine which is specially used for sewing shoes, backpacks and small corners of cylindrical clothes, the thread end remained on the sewing material is basically 10-15mm after the sewing is finished due to the limitation of a thread cutting mechanism in the conventional thread cutting function, and the thread end needs to be cut short again by scissors for beauty at the moment by a user, so that the labor hour is increased. In order to solve the problem of the user's excessive movement and to improve productivity, improvement is required.
For example, application No.: the invention of CN201910162512.0 provides a thread cutting device of a cylindrical sewing machine, comprising: the device comprises a fixed knife, a wire clamping elastic sheet, a movable knife and a transmission mechanism; the fixed knife and the thread clamping elastic sheet are fixedly arranged on a fixed seat, the fixed knife is provided with a fixed blade part, and the front end of the thread clamping elastic sheet is provided with a tongue piece which extends to the lower part of the fixed knife; the movable knife comprises a rocker arm and a knife board which are integrally formed, a first surface of the knife board is provided with a wire guide groove and a movable blade, the rocker arm is used for driving the knife board to reciprocate between a standby position and a thread clamping position in a reciprocating swinging mode, the knife board is normally positioned at the standby position when the sewing machine carries out sewing operation, and the knife board can cooperate with a tongue piece of a thread clamping elastic piece to clamp a cut thread when reaching the thread clamping position.
Based on the above patent search, and the discovery of the prior art, although the thread cutting device can cooperate with the tongue piece of the thread clamping spring to clamp the cut thread, the thread cutting device of the sewing machine has the following disadvantages in the actual use process, such as: above-mentioned sewing machine's tangent line device is when in-service use, and cutting board and tangent line collet installation troublesome operation, inconvenient dismantlement and maintenance, and the position of tangent line collet is difficult for adjusting moreover, is not convenient for pinpoint the suture position, and it lacks the mechanism of fixing to the suture simultaneously, leads to the easy landing of suture in the use, has reduced work efficiency.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a thread cutting device for a short thread end of a pillar type sewing machine, which solves the following disadvantages in the actual use process of the thread cutting device of the sewing machine, such as: above-mentioned sewing machine's tangent line device is when in-service use, and cutting board and tangent line collet installation troublesome operation, inconvenient dismantlement and maintenance, and the position of tangent line collet is difficult for adjusting moreover, is not convenient for pinpoint the suture position, and it lacks the mechanism of fixing to the suture simultaneously, leads to the easy landing of suture in the use, has reduced work efficiency's problem.
The invention relates to a purpose and an effect of a short thread end thread cutting device of a column type sewing machine, which are achieved by the following specific technical means:
a short thread end cutting device of a column type sewing machine comprises a sewing machine body, wherein a base is fixedly arranged at the bottom end of the sewing machine body; the sewing machine comprises a sewing machine head, a shell, an installation cavity and a cylindrical groove, wherein the sewing machine head is arranged at the front part of the sewing machine body, the shell is arranged at the front end of the sewing machine head, the sewing machine head is fixedly connected with the shell through a screw, the installation cavity is formed in the sewing machine head, and the cylindrical groove is formed in the top wall of the installation cavity; an adjusting mechanism is arranged in the mounting cavity; the bottom end of the sewing machine head is provided with a sliding plate, and a pressing plate is arranged below the sliding plate; a feeding upright post is arranged below the sewing machine head and fixedly connected with the base; the feeding upright post is provided with an installation frame, and the installation frame is fixedly connected with the feeding upright post through a bolt; a shearing mechanism is arranged on the mounting rack; a cutter is arranged on the shearing mechanism; the top end of the feeding upright post is provided with a base plate, and the base plate is matched with the pressing plate in the up-and-down position.
Further, the pay-off stand includes faller and trapezoidal spout, there is the faller on pay-off stand top through bolt fixed mounting, two trapezoidal spouts have been seted up on the faller top, and two trapezoidal spouts are the symmetric mode and distribute.
Further, it includes cylinder, mount, rotating turret and crank to cut the mechanism, cylinder top fixed mounting has the mount, and the cylinder passes through mount and mounting bracket fixed connection, the cylinder push rod is rotated with the rotating turret through the round pin axle and is connected, and the rotating turret passes through the bearing and is connected with the mounting bracket rotation, be equipped with the crank on the rotating turret, and the crank is connected with the rotating turret transmission through the pivot.
Further, the cutter includes the mounting panel, the cutter rear end is equipped with the mounting panel, and the mounting panel is L type structure, the mounting panel passes through bolt and crank fixed connection.
Further, the slide includes that the U type leads to the groove, the slide passes through bolt fixed mounting in sewing machine aircraft nose bottom, the slide has been seted up two U types and has been led to the groove and be the symmetric mode and distribute.
Further, the backing plate includes tangent line collet and trapezoidal slider, backing plate rear end fixed mounting has the tangent line collet, the backing plate bottom is equipped with two trapezoidal sliders, and trapezoidal slider and trapezoidal spout phase-match, the backing plate passes through trapezoidal spout and faller sliding connection to lock through the bolt.
Further, the clamp plate includes link, U template, spliced pole and splint, the clamp plate top is equipped with the link, and the link passes through bolt and clamp plate fixed connection, install two spliced poles on the link, and two spliced poles are parallel mode and distribute, the link passes through spliced pole and splint fixed connection, and splint and link top fixed mounting have the U template, the opening vertical mode down of U template distributes, and U template suit is on the slide to the spliced pole leads to groove and slide sliding connection through the U type.
Further, adjustment mechanism includes dwang, lead screw, knob, turbine shaft and gear, the dwang sets up to be transverse distribution in the installation cavity, and the dwang passes through the bearing and is connected with the rotation of sewing machine aircraft nose, the dwang runs through installation cavity left side lateral wall, and dwang tip and knob fixed connection, dwang middle part position fixed mounting has the turbine shaft, turbine shaft one side is equipped with the gear, and the gear is connected with the turbine shaft meshing, be equipped with the lead screw on the gear, and the lead screw passes through threaded mode and gear sliding connection.
Further, the lead screw still includes sleeve, compression spring and backup pad, lead screw top cover is equipped with the sleeve, and sleeve top and installation cavity roof fixed connection to the sleeve bottom is passed through the bearing and is connected with gear revolve, lead screw top fixed mounting has the backup pad, the backup pad top is equipped with compression spring, compression spring sets up in the cylindrical groove, and backup pad and cylindrical groove sliding connection, and the backup pad is connected with cylindrical groove top through compression spring.
Compared with the prior art, the invention has the following beneficial effects:
1. the top end of the air cylinder is fixedly provided with a fixed frame, the air cylinder is fixedly connected with the mounting frame through the fixed frame, an air cylinder push rod is rotatably connected with the rotating frame through a pin shaft, the rotating frame is rotatably connected with the mounting frame through a bearing, the rotating frame is provided with a crank, and the crank is in transmission connection with the rotating frame through a rotating shaft; the cutter comprises an installation plate, the installation plate is arranged at the rear end of the cutter and is of an L-shaped structure, the installation plate is fixedly connected with the crank through a bolt, the equipment provides power for the air cylinder, and the crank is driven by the rotating frame to deflect forwards and backwards, so that the cutter realizes the front and back cutting action, and the cutter is simple to operate and convenient to use;
2. the rear end of the base plate is fixedly provided with the tangent colleting clamp, the bottom end of the base plate is provided with two trapezoidal sliding blocks which are matched with the trapezoidal sliding grooves, and the base plate is connected with the needle plate in a sliding mode through the trapezoidal sliding grooves and locked through the bolts;
3. the top end of the pressing plate is provided with the connecting frame which is fixedly connected with the pressing plate through the bolt, the connecting frame is provided with two connecting columns which are distributed in a parallel mode, the connecting frame is fixedly connected with the clamping plate through the connecting columns, the clamping plate and the top end of the connecting frame are fixedly provided with the U-shaped plates, the openings of the U-shaped plates face downwards and are distributed in a vertical mode, the U-shaped plates are sleeved on the sliding plate, the connecting columns are in sliding connection with the sliding plate through the U-shaped through grooves, when the sewing machine is used, the pressing plate slides upwards on the sliding plate through the connecting columns along the U-shaped through grooves, meanwhile, the sewing material is placed between the pressing plate and the backing plate, and then the pressing plate is adjusted downwards;
4. because lead screw top cover is equipped with the sleeve, and sleeve top and installation cavity roof fixed connection, and the sleeve bottom is passed through the bearing and is connected with gear revolve, lead screw top fixed mounting has the backup pad, the backup pad top is equipped with compression spring, compression spring sets up in the cylindrical recess, and backup pad and cylindrical recess sliding connection, and the backup pad is connected with the cylindrical recess top through compression spring, rotatory knob during the use, it slides from top to bottom to drive the lead screw by turbine shaft and gear, adjust from top to bottom through the clamp plate that lead screw drove U template below, conveniently realize the fixed of clamp plate to the fabric, and utilize compression spring's elastic action to make fixed more firm.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic axial view of the present invention.
Fig. 2 is a schematic structural diagram of the shearing mechanism of the present invention.
Fig. 3 is a schematic view showing a state where the backing plate of the present invention is separated from the needle plate.
FIG. 4 is a schematic view of the adjusting mechanism and the head of the sewing machine according to the present invention.
Fig. 5 is a schematic cross-sectional view of fig. 4.
Fig. 6 is a schematic view of the adjusting mechanism, the pressure plate and the sliding plate in an exploded state.
Fig. 7 is a schematic view of the rotational angle structure drawn from fig. 1.
Fig. 8 is an enlarged view of the portion a of fig. 7 according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a sewing machine body; 101. a sewing machine head; 102. a housing; 103. a mounting cavity; 104. a cylindrical groove; 2. a feeding upright post; 201. a needle plate; 202. a trapezoidal chute; 3. a mounting frame; 4. a shearing mechanism; 401. a cylinder; 402. a fixed mount; 403. a rotating frame; 404. a crank; 5. a cutter; 501. mounting a plate; 6. a slide plate; 601. a U-shaped through groove; 7. a base plate; 701. cutting the wire and sleeving; 702. a trapezoidal slider; 8. pressing a plate; 801. a connecting frame; 802. a U-shaped plate; 803. connecting columns; 804. a splint; 9. an adjustment mechanism; 901. rotating the rod; 902. a screw rod; 90201. a sleeve; 90202. a compression spring; 90203. a support plate; 903. a knob; 904. a turbine shaft; 905. a gear; 10. a base.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a short thread end cutting device of a column type sewing machine, which comprises a sewing machine body 1, wherein a base 10 is fixedly arranged at the bottom end of the sewing machine body 1; the sewing machine body 1 comprises a sewing machine head 101, a shell 102, a mounting cavity 103 and a cylindrical groove 104, the sewing machine head 101 is arranged at the front part of the sewing machine body 1, the shell 102 is arranged at the front end of the sewing machine head 101, the sewing machine head 101 is fixedly connected with the shell 102 through a screw, the mounting cavity 103 is formed in the sewing machine head 101, and the cylindrical groove 104 is formed in the top wall of the mounting cavity 103; an adjusting mechanism 9 is arranged in the mounting cavity 103; the adjusting mechanism 9 comprises a rotating rod 901, a screw rod 902, a knob 903, a turbine shaft 904 and a gear 905, the rotating rod 901 is arranged in the installation cavity 103 and transversely distributed, the rotating rod 901 is rotatably connected with the sewing machine head 101 through a bearing, the rotating rod 901 penetrates through the side wall of the left side of the installation cavity 103, the end part of the rotating rod 901 is fixedly connected with the knob 903, the turbine shaft 904 is fixedly arranged at the middle part of the rotating rod 901, the gear 905 is arranged on one side of the turbine shaft 904, the gear 905 is meshed with the turbine shaft 904, the screw rod 902 is arranged on the gear 905, and the screw rod 902 is slidably connected with; the bottom end of the sewing machine head 101 is provided with a sliding plate 6, and a pressing plate 8 is arranged below the sliding plate 6; the sliding plate 6 comprises a U-shaped through groove 601, the sliding plate 6 is fixedly arranged at the bottom end of the sewing machine head 101 through bolts, and the sliding plate 6 is provided with two U-shaped through grooves 601 which are symmetrically distributed; a feeding upright post 2 is arranged below the sewing machine head 101, and the feeding upright post 2 is fixedly connected with the base 10; the feeding upright post 2 comprises a needle plate 201 and trapezoidal sliding grooves 202, the needle plate 201 is fixedly installed at the top end of the feeding upright post 2 through bolts, two trapezoidal sliding grooves 202 are formed in the top end of the needle plate 201, and the two trapezoidal sliding grooves 202 are symmetrically distributed; the feeding upright post 2 is provided with an installation frame 3, and the installation frame 3 is fixedly connected with the feeding upright post 2 through bolts; a shearing mechanism 4 is arranged on the mounting rack 3; a cutter 5 is arranged on the shearing mechanism 4; the top end of the feeding upright post 2 is provided with a backing plate 7, and the backing plate 7 is matched with the pressing plate 8 in the up-and-down position.
The shearing mechanism 4 comprises an air cylinder 401, a fixing frame 402, a rotating frame 403 and a crank 404, wherein the fixing frame 402 is fixedly installed at the top end of the air cylinder 401, the air cylinder 401 is fixedly connected with the mounting frame 3 through the fixing frame 402, a push rod of the air cylinder 401 is rotatably connected with the rotating frame 403 through a pin shaft, the rotating frame 403 is rotatably connected with the mounting frame 3 through a bearing, the crank 404 is arranged on the rotating frame 403, and the crank 404 is in transmission connection with the rotating frame 403 through a rotating shaft; the cutter 5 includes mounting panel 501, and the cutter 5 rear end is equipped with mounting panel 501, and mounting panel 501 is L type structure, and mounting panel 501 passes through bolt and crank 404 fixed connection, and this equipment provides power for cylinder 401, and it deflects around driving crank 404 through rotating turret 403 to make cutter 5 realize front and back cutting action, its easy operation, convenient to use.
Wherein, the backing plate 7 includes tangent line collet 701 and trapezoidal slider 702, 7 rear end fixed mounting of backing plate has tangent line collet 701, 7 bottom ends of backing plate are equipped with two trapezoidal sliders 702, and trapezoidal slider 702 and trapezoidal spout 202 phase-match, backing plate 7 passes through trapezoidal spout 202 and faller 201 sliding connection, and through bolt locking, it is thus visible, backing plate 7 and faller 201 simple to operate, and backing plate 7 passes through trapezoidal slider 702 and slides along trapezoidal spout 202, thereby can adjust tangent line collet 701 position, make tangent line position more accurate.
Wherein, the clamp plate 8 includes link 801, U template 802, spliced pole 803 and splint 804, 8 tops of clamp plate are equipped with link 801, and link 801 passes through bolt and 8 fixed connection of clamp plate, install two spliced poles 803 on the link 801, and two spliced poles 803 are parallel mode and distribute, link 801 passes through spliced pole 803 and splint 804 fixed connection, and splint 804 and link 801 top fixed mounting have U template 802, the opening of U template 802 is vertical mode distribution down, and U template 802 suit is on slide 6, and spliced pole 803 passes through U type through groove 601 and slide 6 sliding connection, when using, clamp plate 8 passes through spliced pole 803 and upwards slides at slide 6 along U type through groove 601, put the suture between clamp plate 8 and backing plate 7 simultaneously, then adjust clamp plate 8 down, thereby step up the suture, and improve the availability factor.
The lead screw 902 further comprises a sleeve 90201, a compression spring 90202 and a support plate 90203, the sleeve 90201 is sleeved on the top of the lead screw 902, the top end of the sleeve 90201 is fixedly connected with the top wall of the installation cavity 103, the bottom end of the sleeve 90201 is rotatably connected with the gear 905 through a bearing, the support plate 90203 is fixedly installed at the top end of the lead screw 902, the compression spring 90202 is arranged at the top end of the support plate 90203, the compression spring 90202 is arranged in the cylindrical groove 104, the support plate 90203 is slidably connected with the cylindrical groove 104, the support plate 90203 is connected with the top of the cylindrical groove 104 through the compression spring 90202, the knob 903 is rotated during use, the lead screw 902 is driven by 904 and the gear 905 to slide up and down, the pressing plate 8 below the U-shaped plate 802 is driven by the lead screw 902 to be adjusted up and down, the.
The specific use mode and function of the embodiment are as follows:
in the using process, firstly, a fixing frame 402 is fixedly installed at the top end of an air cylinder 401, the air cylinder 401 is fixedly connected with an installation frame 3 through the fixing frame 402, a push rod of the air cylinder 401 is rotatably connected with a rotating frame 403 through a pin shaft, the rotating frame 403 is rotatably connected with the installation frame 3 through a bearing, a crank 404 is arranged on the rotating frame 403, and the crank 404 is in transmission connection with the rotating frame 403 through a rotating shaft; the cutter 5 comprises an installation plate 501, the installation plate 501 is arranged at the rear end of the cutter 5, the installation plate 501 is of an L-shaped structure, the installation plate 501 is fixedly connected with the crank 404 through a bolt, the equipment provides power for the air cylinder 401, and the crank 404 is driven by the rotating frame 403 to deflect forwards and backwards, so that the cutter 5 realizes front and back cutting actions, and the cutter is simple to operate and convenient to use;
secondly, a tangent collet 701 is fixedly installed at the rear end of the backing plate 7, two trapezoidal sliding blocks 702 are arranged at the bottom end of the backing plate 7, the trapezoidal sliding blocks 702 are matched with the trapezoidal sliding grooves 202, the backing plate 7 is connected with the needle plate 201 in a sliding mode through the trapezoidal sliding grooves 202 and locked through bolts, therefore, the backing plate 7 and the needle plate 201 are convenient to install, and the backing plate 7 slides along the trapezoidal sliding grooves 202 through the trapezoidal sliding blocks 702, so that the position of the tangent collet 701 can be adjusted, and the tangent position is more accurate;
meanwhile, a connecting frame 801 is arranged at the top end of the pressing plate 8, the connecting frame 801 is fixedly connected with the pressing plate 8 through bolts, two connecting columns 803 are mounted on the connecting frame 801, the two connecting columns 803 are distributed in a parallel mode, the connecting frame 801 is fixedly connected with a clamping plate 804 through the connecting columns 803, U-shaped plates 802 are fixedly mounted at the top ends of the clamping plate 804 and the connecting frame 801, openings of the U-shaped plates 802 are distributed in a downward vertical mode, the U-shaped plates 802 are sleeved on the sliding plate 6, the connecting columns 803 are slidably connected with the sliding plate 6 through U-shaped through grooves 601, when the pressing plate 8 is used, the pressing plate 8 slides upwards on the sliding plate 6 through the connecting columns 803 along the U-shaped through grooves 601, meanwhile, the sewing material is placed between the pressing plate 8 and the backing plate 7, then the pressing plate 8 is adjusted;
in addition, the top of the screw 902 is sleeved with a sleeve 90201, the top end of the sleeve 90201 is fixedly connected with the top wall of the installation cavity 103, the bottom end of the sleeve 90201 is rotatably connected with a gear 905 through a bearing, a supporting plate 90203 is fixedly installed at the top end of the screw 902, a compression spring 90202 is arranged at the top end of the supporting plate 90203, the supporting plate 90203 is slidably connected with the cylindrical groove 104, the supporting plate 90203 is connected with the top of the cylindrical groove 104 through the compression spring 90202, the knob 903 is rotated during use, the screw 902 is driven by the turbine shaft 904 and the gear 905 to slide up and down, the pressing plate 8 below the U-shaped plate 802 is driven by the screw 902 to be adjusted up and down, the fixing of the pressing plate 8 to the textile fabrics is conveniently realized, and the fixing.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. The utility model provides a column type sewing machine stub thread trimming device which characterized in that: the sewing machine comprises a sewing machine body (1), wherein a base (10) is fixedly arranged at the bottom end of the sewing machine body (1); the sewing machine comprises a sewing machine head (101), a shell (102), a mounting cavity (103) and a cylindrical groove (104), wherein the sewing machine head (101) is arranged at the front part of the sewing machine body (1), the shell (102) is arranged at the front end of the sewing machine head (101), the sewing machine head (101) is fixedly connected with the shell (102) through a screw, the mounting cavity (103) is formed in the sewing machine head (101), and the cylindrical groove (104) is formed in the top wall of the mounting cavity (103); an adjusting mechanism (9) is arranged in the mounting cavity (103); the bottom end of the sewing machine head (101) is provided with a sliding plate (6), and a pressing plate (8) is arranged below the sliding plate (6); a feeding upright post (2) is arranged below the sewing machine head (101), and the feeding upright post (2) is fixedly connected with the base (10); the feeding upright post (2) is provided with an installation frame (3), and the installation frame (3) is fixedly connected with the feeding upright post (2) through a bolt; a shearing mechanism (4) is arranged on the mounting rack (3); a cutter (5) is arranged on the shearing mechanism (4); the top end of the feeding upright post (2) is provided with a backing plate (7), and the backing plate (7) is matched with the pressing plate (8) in the vertical position.
2. The string trimmer according to claim 1, wherein: pay-off stand (2) include faller (201) and trapezoidal spout (202), there is faller (201) on pay-off stand (2) top through bolt fixed mounting, trapezoidal spout (202) in two places have been seted up on faller (201) top, and trapezoidal spout (202) in two places are the symmetric mode and distribute.
3. The string trimmer according to claim 1, wherein: shearing mechanism (4) include cylinder (401), mount (402), rotating turret (403) and crank (404), cylinder (401) top fixed mounting has mount (402), and cylinder (401) are through mount (402) and mounting bracket (3) fixed connection, cylinder (401) push rod rotates through round pin axle and rotating turret (403) to be connected, and rotating turret (403) rotate through bearing and mounting bracket (3) to be connected, be equipped with crank (404) on rotating turret (403), and crank (404) are connected through pivot and rotating turret (403) transmission.
4. The string trimmer according to claim 1, wherein: the cutting knife (5) comprises an installation plate (501), the installation plate (501) is arranged at the rear end of the cutting knife (5), the installation plate (501) is of an L-shaped structure, and the installation plate (501) is fixedly connected with the crank (404) through a bolt.
5. The string trimmer according to claim 1, wherein: the sliding plate (6) comprises a U-shaped through groove (601), the sliding plate (6) is fixedly installed at the bottom end of the sewing machine head (101) through bolts, and the sliding plate (6) is provided with two U-shaped through grooves (601) which are distributed in a symmetrical mode.
6. The string trimmer according to claim 1, wherein: backing plate (7) include tangent line collet (701) and trapezoidal slider (702), backing plate (7) rear end fixed mounting has tangent line collet (701), backing plate (7) bottom is equipped with trapezoidal slider (702) in two places, and trapezoidal slider (702) and trapezoidal spout (202) phase-match, backing plate (7) are through trapezoidal spout (202) and faller (201) sliding connection to lock through the bolt.
7. The string trimmer according to claim 1, wherein: clamp plate (8) are including link (801), U template (802), spliced pole (803) and splint (804), clamp plate (8) top is equipped with link (801), and link (801) pass through bolt and clamp plate (8) fixed connection, install two spliced poles (803) on link (801), and two spliced poles (803) are parallel mode and distribute, link (801) are through spliced pole (803) and splint (804) fixed connection, and splint (804) and link (801) top fixed mounting have U template (802), the opening vertical mode distribution down of U template (802), and U template (802) suit is on slide (6) to spliced pole (803) are through groove (601) and slide (6) sliding connection of U type.
8. The string trimmer according to claim 1, wherein: adjustment mechanism (9) are including dwang (901), lead screw (902), knob (903), turbine shaft (904) and gear (905), dwang (901) set up and are horizontal distribution in installation cavity (103), and dwang (901) rotate with sewing machine aircraft nose (101) through the bearing and be connected, dwang (901) run through installation cavity (103) left side lateral wall, and dwang (901) tip and knob (903) fixed connection, dwang (901) middle part fixed mounting has turbine shaft (904), turbine shaft (904) one side is equipped with gear (905), and gear (905) are connected with turbine shaft (904) meshing, be equipped with lead screw (902) on gear (905), and lead screw (902) pass through threaded mode and gear (905) sliding connection.
9. The string trimmer according to claim 8, wherein: lead screw (902) still include sleeve (90201), compression spring (90202) and backup pad (90203), lead screw (902) top cover is equipped with sleeve (90201), and sleeve (90201) top and installation cavity (103) roof fixed connection to sleeve (90201) bottom is passed through the bearing and is connected with gear (905) rotation, lead screw (902) top fixed mounting has backup pad (90203), backup pad (90203) top is equipped with compression spring (90202), compression spring (90202) set up in cylindrical groove (104), and backup pad (90203) and cylindrical groove (104) sliding connection, and backup pad (90203) are connected with cylindrical groove (104) top through compression spring (90202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415042.1A CN113005662B (en) | 2021-04-17 | 2021-04-17 | Short thread end thread cutting device of column type sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415042.1A CN113005662B (en) | 2021-04-17 | 2021-04-17 | Short thread end thread cutting device of column type sewing machine |
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| CN113005662A true CN113005662A (en) | 2021-06-22 |
| CN113005662B CN113005662B (en) | 2022-09-13 |
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| CN202110415042.1A Active CN113005662B (en) | 2021-04-17 | 2021-04-17 | Short thread end thread cutting device of column type sewing machine |
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| CN108130661A (en) * | 2017-12-26 | 2018-06-08 | 方琳 | The control method of section line apparatus, sewing machine and sewing machine |
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| CN108130661A (en) * | 2017-12-26 | 2018-06-08 | 方琳 | The control method of section line apparatus, sewing machine and sewing machine |
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Effective date of registration: 20220824 Address after: No. 6, Liansheng East Road, Yangjia Village, Xiachen Street, Jiaojiang District, Taizhou City, Zhejiang Province, 318000 Applicant after: Zhejiang Xingma Precision Manufacturing Co.,Ltd. Address before: 318000 zhaoqiao Industrial Zone, Hongjia street, Jiaojiang District, Taizhou City, Zhejiang Province (Qixin sewing machine company) Applicant before: Wei Tianliang |
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