CN212025600U - Adjusting device for adjusting crochet hook of sewing machine - Google Patents

Abstract

The utility model relates to an adjust adjusting device of sewing machine crochet hook, include: a machine base; the machine head is arranged on the machine base; a sewing needle arranged on the machine head; the sewing table is arranged between the machine base and the machine head; articulate the crochet hook in the platform and set up in the bottom of frame, be used for controlling the first foot pedal switch that the sewing machine starts or stops, sew up the platform and the frame loading face between the department be provided with, be used for carrying out the adjustment mechanism of fine setting to the crochet hook, adjustment mechanism includes: a fixing rod connected to one side of the crochet hook; the first traction head is hinged to one end of the fixed rod, which is far away from the crochet hook; the first traction rod is connected to one end of the first traction head; the swinging piece is connected to the first traction rod, and the traction assembly is arranged on the bearing surface of the machine base and used for drawing the swinging piece to swing. The utility model discloses have the effect that plays the fine setting to the crochet hook to make the seam needle drive the needle and thread can not sew up on the fabric, and then can be nimble dismantle the needle and thread, save time and manpower, improve production efficiency.

Description

Adjusting device for adjusting crochet hook of sewing machine

Technical Field

The utility model belongs to the technical field of sewing machine's technique and specifically relates to an adjust adjusting device of sewing machine crochet hook.

Background

Sewing machines are currently machines which use one or more sewing threads to form one or more stitches in the material to be sewn, to interlace or stitch together one or more layers of the material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. And derives the artistic forms of hand-push embroidery, computer embroidery, etc. Meanwhile, along with the evolution and development of the sewing machine technology, the functions of the sewing machine are more and more refined, and various sewing machines with different functions are formed according to different requirements of customers.

Existing sewing machines generally comprise: frame, aircraft nose, drive mechanism, needle bar mechanism, collude line mechanism, feeding mechanism and foot pedal switch, and this needle bar mechanism includes: a needle bar and; install the seam needle on the needle bar, this collude line mechanism and include: and (4) hooking the needle. When the fabric is sewed, the pedal switch is started, the feeding mechanism conveys the fabric to the position right below the needle rod mechanism, the transmission mechanism drives a sewing needle of the needle rod mechanism to move up and down in a reciprocating mode, the sewing needle drives a needle thread to penetrate through the fabric and pull out a coil, and then a crochet hook on the crochet hook mechanism hooks the coil when the sewing needle retreats; when the sewing needle passes through the fabric again, a new loop directly passes through the middle of the previous loop, and the crochet needle hooks the new loop again, so that the previous loop and the new loop are mutually interwoven to sew the needle thread on the fabric; finally, the transmission mechanism drives the needle bar mechanism repeatedly to drive the needle thread to enter and exit the fabric, so that the fabric can be sewn together.

The above prior art solutions have the following drawbacks: however, in the production of sewing the underpants, two fabrics for making the underpants are generally required to be mutually attached, then two side edges of the two fabrics are correspondingly folded inwards, then the two side edges of the two fabrics are mutually matched through a sewing needle and a crochet hook, two side edges of the two fabrics can be sewn together, then when the tail end of the underpants is sewn, one side edge which is sewn and a part of stitches close to the tail end of the underpants need to be firstly removed, so that the tail end side edge of the underpants can be conveniently folded, then the removed part is sewn again, and then the tail end side edge of the underpants is sewn.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide an adjust adjusting device of sewing machine crochet hook has the effect of playing the fine setting to the position of crochet hook to when making the sewing needle drive the reciprocal fabric that passes of needle and line, the needle and line can not be sewed up on the fabric, and then can be nimble dismantle the needle and line, save time and manpower, improved production efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an adjusting device for adjusting a crochet of a sewing machine, comprising: a machine base; the machine head is arranged on the machine base; the sewing needle is arranged on the machine head; the sewing table is arranged between the machine base and the machine head; articulate in the crochet hook in the platform and set up in the bottom of frame, be used for controlling the sewing machine start or the first foot pedal switch that stops, sew up the platform with department between the frame loading surface is provided with, is used for to the guiding mechanism that the crochet hook finely tunes, guiding mechanism includes: a fixing rod connected to one side of the crochet hook; the first traction head is hinged to one end, far away from the crochet hook, of the fixed rod; a first traction rod connected to one end of the first traction head; the swinging piece is connected to the first traction rod, and the traction assembly is arranged on the bearing surface of the machine base and used for drawing the swinging piece to swing.

Through adopting above-mentioned technical scheme, through setting up the traction assembly, can be convenient for pull first traction lever and carry out reciprocating motion, first traction lever then pulls first traction head to can realize playing the effect of fine setting to the position of crochet hook, when sewing the needle and driving the reciprocal fabric that passes of needle line, the needle line can not be sewed up on the fabric, and then can be nimble dismantle the needle line, save time and manpower, improved production efficiency.

The present invention may be further configured in a preferred embodiment as: the traction assembly comprises traction equipment arranged on the bearing surface of the machine base; the second foot pedal switch is arranged at the bottom of the base and is electrically connected with the traction equipment; the second traction rod is connected to the traction end of the traction equipment; the second traction head is connected to one end, far away from the traction equipment, of the second traction rod through a connecting piece, is hinged with one end of the swinging piece, and is provided with an elastic piece arranged on the second traction rod.

Through adopting above-mentioned technical scheme, when the position of crochet hook needs to be adjusted, through trampling second foot pedal switch, make pulling equipment start, pulling equipment pulls the second traction lever, make the second traction lever drive the second traction head and carry out reciprocating motion, the second traction head can pull the swing piece at the removal in-process, make the swing piece pull the removal to the first traction head on the first traction lever, thereby can make the second traction head pull the crochet hook through the fixed rod, and then can finely tune the position of crochet hook.

The present invention may be further configured in a preferred embodiment as: the elastic piece comprises a fixing ring connected to the second traction rod; the first threaded holes are formed in the fixing ring and the second traction rod at the same time; the fixing screw is in threaded connection with the first threaded hole, and the spring is sleeved on the second traction rod and connected with the fixing ring.

By adopting the technical scheme, the fixing ring and the fixing screw are arranged, so that the fixing ring can be conveniently and fixedly arranged on the second traction rod; and through setting up the spring, can be convenient for play certain buffering effect to the second traction lever.

The present invention may be further configured in a preferred embodiment as: the connecting piece comprises a circular ring connected to one end of the second traction head facing the traction equipment; a nut attached to the ring; and the screw rod is connected to one end of the second traction rod, which is far away from the traction equipment, and is in threaded connection with the nut.

Through adopting above-mentioned technical scheme, through setting up the structure that ring, nut and screw rod mutually supported, can be convenient for twist into this screw rod with the nut on the second traction head on to can make second traction head and second traction lever interconnect be in the same place.

The present invention may be further configured in a preferred embodiment as: and a plurality of fixed sleeve blocks which are in sliding connection with the second traction rod are arranged on the side surface of the sewing table.

By adopting the technical scheme, the second traction rod can be conveniently guided and supported by arranging the fixing sleeve block, so that the second traction rod can slide on the fixing sleeve block.

The present invention may be further configured in a preferred embodiment as: the swinging piece comprises a swinging block hinged to one end of the first traction rod away from the first traction head; the swing rod is rotatably connected to the second traction head through a universal ball, one end of the connecting rod is connected to the swing rod, and the other end of the connecting rod is connected to the swing block.

Through adopting above-mentioned technical scheme, through setting up the structure that swing piece, swinging arms and connecting rod mutually supported, when drawing the subassembly and drawing the swinging arms, make the swinging arms drive the swing piece through the connecting rod simultaneously and swing, thereby can be convenient for pull first traction lever, make first traction head on the first traction lever drive the crochet hook and remove, and then can finely tune the position of crochet hook.

The present invention may be further configured in a preferred embodiment as: the second traction rod is movably sleeved with a rubber ring.

Through adopting above-mentioned technical scheme, through setting up the rubber ring, can be convenient for play certain buffering effect to solid fixed ring to can reduce solid fixed ring and the fixed sleeve piece condition of colliding each other and take place.

The present invention may be further configured in a preferred embodiment as: a protector for protecting the adjustment mechanism is provided on the sewing table, the protector including: the protective shell covers the adjusting mechanism; an extension plate connected to one side of the protective case; a circular hole penetrating through the extension plate; the second threaded hole is arranged on one side, close to the adjusting mechanism, of the sewing table, corresponds to the round hole, and the bolt penetrates through the round hole and is in threaded connection with the second threaded hole.

Through adopting above-mentioned technical scheme, through setting up the structure that protective housing, extension board and bolt mutually support, not only can play the protection effect to adjustment mechanism, when adjustment mechanism goes wrong needs maintenance or change moreover, can be convenient for open the protective housing.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the first traction rod can be conveniently pulled to reciprocate by arranging the traction assembly, and the first traction head is pulled by the first traction rod, so that the fine adjustment effect on the position of the crochet hook can be realized, when the sewing needle drives the needle thread to pass through the fabric in a reciprocating manner, the needle thread cannot be sewn on the fabric, the needle thread can be flexibly disassembled, the time and the labor are saved, and the production efficiency is improved;

2. the fixing sleeve block is arranged, so that the second traction rod can be guided and supported conveniently, and the second traction rod can slide on the fixing sleeve block;

3. through setting up the structure that protective housing, extension board and bolt mutually supported, not only can play the protection effect to adjustment mechanism, when adjustment mechanism goes wrong needs maintenance or change, can be convenient for open the protective housing moreover.

Drawings

FIG. 1 is a schematic structural view of an adjusting device for adjusting a crochet hook of a sewing machine according to the embodiment;

FIG. 2 is a schematic structural view of an adjustment mechanism of the present embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

In the figure, 1, a machine base; 11. a first foot pedal switch; 12. a second foot pedal switch; 2. a machine head; 21. a needle bar; 22. sewing a needle; 3. a sewing station; 31. hooking a needle; 32. fixing the rod; 33. a first traction head; 34. a first traction rod; 35. a swing block; 36. a swing lever; 37. a connecting rod; 38. a second threaded hole; 4. a pulling device; 41. a second traction rod; 411. a screw; 412. a rubber ring; 42. a second traction head; 421. a circular ring; 422. a nut; 43. a fixing ring; 44. a first threaded hole; 45. a set screw; 46. a spring; 5. fixing the sleeve block; 6. a protective shell; 61. an extension plate; 62. a circular hole; 7. and (4) bolts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses an adjusting device for adjusting a crochet hook of a sewing machine, comprising: the sewing machine comprises a machine base 1, wherein a machine head 2 is fixedly arranged on a bearing surface of the machine base 1, a first pedal switch 11 electrically connected with the machine head 2 is arranged at the bottom of the machine base 1, and the first pedal switch 11 is used for controlling the starting or stopping of the sewing machine. And the handpiece 2 further comprises: the structure of the power component, the transmission equipment, the needle bar 21, the sewing needle 22, the auxiliary component and the like; the needle bar 21 is slidably connected to one end of the machine head 2 facing the machine base 1, and one end of the needle bar 21 is connected to the transmission device; the sewing needle 22 is fixedly connected to the needle bar 21, and the needle thread is mounted on the needle head of the sewing needle 22 in advance.

When the first pedal switch 11 is stepped on, the power part can be started, the power part drives the transmission device to reciprocate left and right, the transmission device reciprocates the needle bar 21 up and down through the auxiliary component, and the needle bar 21 drives the sewing needle 22 to penetrate through the fabric to be sewn.

As shown in fig. 1 and 2, in the present embodiment, a sewing table 3 is further fixedly mounted on the bearing surface of the machine base 1, the sewing table 3 is located right below the machine head 2, a crochet needle 31 cooperating with the sewing needle 22 is further hinged on the sewing table 3, and the needle thread on the sewing needle 22 can be sewn on the fabric through the structure that the crochet needle 31 cooperates with the sewing needle 22.

Meanwhile, as shown in fig. 2, in order to prevent the needle 22 from sewing the needle thread on the fabric when the needle thread is driven through the fabric, so as to meet the production requirement, in this embodiment, an adjusting mechanism is provided between the sewing table 3 and the bearing surface of the machine base 1, and the adjusting mechanism can finely adjust the position of the crochet needle 31.

Specifically, as shown in fig. 2, in the present embodiment, the adjustment mechanism includes: a fixing rod 32, a first pulling head 33, a first pulling rod 34, a swinging member and a pulling assembly. The fixing rod 32 is fixedly connected to one side of the crochet hook 31; the first pulling head 33 is sleeved on one end of the fixing rod 32 far away from the crochet hook 31; the first traction rod 34 is fixedly connected to the first traction head 33; the swinging piece is arranged in the sewing platform 3 and is connected with one end of the first draw bar 34; the traction component is arranged on one side of the machine base 1 close to the sewing platform 3, the traction component is matched with the swinging piece, and the traction component can drive the swinging piece to reciprocate.

Meanwhile, as shown in fig. 2, in the present embodiment, the swinging member includes: a swing block 35; a swing lever 36 and a connecting lever 37. The swinging block 35 is hinged on the bearing surface of the machine base 1, the swinging block 35 is positioned on one side of the first traction rod 34 far away from the first traction head 33, and the swinging block 35 is hinged with the first traction rod 34; the swinging rod 36 is rotatably connected to one end of the traction assembly through a universal ball; the connecting rod 37 is disposed between the swing block 35 and the swing lever 36, and one end of the connecting rod 37 is connected to the shaft of the swing lever 36, and the other end is connected to one side of the swing block 35.

Through setting up the structure that swing piece 35, swing lever 36 and connecting rod 37 cooperate each other, when the subassembly that draws pulls swing lever 36, swing lever 36 drives swing piece 35 through connecting rod 37 and swings, and swing piece 35 can pull first traction lever 34 at the swing in-process for first traction head 33 on first traction lever 34 drives crochet hook 31 and moves, thereby can finely tune the position of crochet hook 31.

More specifically, as shown in fig. 2, in the present embodiment, the pulling assembly comprises: traction device 4, second traction bar 41, second traction head 42, coupling member and second foot pedal switch 12. The traction equipment 4 is fixedly arranged on the bearing surface of the machine base 1, and the traction equipment 4 is a solenoid traction electromagnet; the second traction rod 41 is connected to the traction end of the traction device 4; the second traction head 42 is connected to one end of the second traction rod 41 far away from the traction device 4 through a connecting piece, one end of the second traction head 42 far away from the second traction rod 41 is rotatably connected with the swing rod 36, and when the second traction head 42 and the second traction rod 41 are at rest, the second traction head 42 and the second traction rod 41 are respectively perpendicular to the swing rod 36; the second foot pedal switch 12 is fixedly installed at the bottom of the machine base 1, and the second foot pedal switch 12 and the traction device 4 are connected with each other through a wire.

When the position of the crochet hook 31 needs to be adjusted, the traction device 4 can be started by stepping on the second foot pedal switch 12, the traction device 4 pulls the second traction rod 41, the second traction rod 41 drives the second traction head 42 to move in a reciprocating mode, the second traction head 42 can pull the swinging piece in the reciprocating moving process, the swinging piece pulls the first traction head 33 on the first traction rod 34, the second traction head 42 pulls the crochet hook 31 through the fixing rod 32, and the position of the crochet hook 31 can be finely adjusted.

Meanwhile, as shown in fig. 3, in the present embodiment, the connector: ring 421, nut 422 and screw 411. The ring 421 is fixedly connected to an end of the second drawing head 42 facing the drawing device 4; the nut 422 is fixedly connected to the ring 421; the screw 411 is fixedly connected to an end of the second traction rod 41 facing away from the traction device 4, and the screw 411 is in threaded connection with the nut 422, so that the second traction head 42 and the second traction rod 41 can be connected to each other by screwing the nut 422 into the screw 411.

Preferably, as shown in fig. 2, in this embodiment, two fixing blocks 5 slidably connected to the second traction rod 41 are installed on a side surface of the sewing table 3, and the two fixing blocks 5 can respectively play a guiding and supporting role on the second traction rod 41, so that the second traction rod 41 can slide on the fixing blocks 5, and further, the stability of the second traction rod 41 can be improved.

As shown in fig. 4, in order to make the second traction rod 41 have a certain buffering effect on the second traction rod 41 during the reciprocating movement, in the present embodiment, an elastic member is disposed on the second traction rod 41, and the elastic member is located between the two fixing blocks 5, and includes: a fixing ring 43, a fixing screw 45, and a spring 46. The fixing ring 43 is fixedly sleeved on the rod body of the second traction rod 41, and a first threaded hole 44 is simultaneously formed on the fixing ring 43 and the second traction rod 41; the fixing screw 45 is in threaded connection with the first threaded hole 44, and the fixing screw 45 can be screwed into the fixing ring 43 and the second traction rod 41 along the first threaded hole 44, so that not only can the fixing ring 43 be fixedly mounted on the second traction rod 41 be facilitated, but also the moving distance of the second traction rod 41 can be conveniently limited, and the reciprocating efficiency can be improved.

Meanwhile, as shown in fig. 4, the spring 46 is sleeved on the second traction rod 41, one end of the spring 46 is connected to one side of the fixing ring 43, and the other end is connected to the fixing sleeve block 5 near one end of the traction device 4; and a rubber ring 412 is movably sleeved on the second traction rod 41, the rubber ring 412 is positioned between the fixing ring 43 and the fixing sleeve close to the second traction head 42, and by arranging a structure that the spring 46 and the rubber ring 412 are matched with each other, not only a certain buffering effect can be conveniently played on the second traction rod 41, but also a certain buffering effect can be conveniently played on the fixing ring 43, so that the occurrence of mutual collision between the fixing ring 43 and the fixing sleeve block 5 can be reduced.

In order to be able to protect the adjusting mechanism, as shown in fig. 1, in the present embodiment, a protecting member for protecting the adjusting mechanism is provided on the sewing table 3, and the protecting member includes: protective shell 6, extension plate 61, and bolt 7. The protective shell 6 covers the adjusting mechanism; the extension plate 61 is fixedly connected to one side of the protection shell 6, and one end of the extension plate 61 is connected to the sewing table 3; a circular hole 62 is formed through the extending plate 61, and a second threaded hole 38 (not shown) corresponding to the circular hole 62 is formed on the sewing table 3; the bolt 7 passes through the circular hole 62, and the bolt 7 is screwed with the second screw hole 38 (not shown), so that the protective shell 6 can be conveniently and fixedly mounted on the sewing table 3.

Through setting up protective housing 6, extending board 61 and the structure that bolt 7 mutually supported, not only can play the effect of protection to adjustment mechanism, moreover when adjustment mechanism goes wrong and needs maintenance or change, can dismantle protective housing 6 through twisting bolt 7 out soon.

The implementation principle of the embodiment is as follows: when the position of the crochet hook 31 needs to be finely adjusted, the traction device 4 can be started by stepping on the second foot pedal switch 12, the traction device 4 pulls the second traction rod 41, so that the second traction rod 41 drives the second traction head 42 to reciprocate along the fixed sleeve block 5, the second traction head 42 can pull the swing rod 36 in the reciprocating movement process, the swing rod 36 drives the swing block 35 to swing through the connecting rod 37, the swing block 35 can pull the first traction rod 34 in the swinging process, the first traction head 34 drives the first traction head 33 to reciprocate, the second traction head 42 pulls the crochet hook 31 through the fixed rod 32, and therefore the position of the crochet hook 31 can be adjusted, the position of the crochet hook 31 is not corresponding to the position of the sewing needle 22, and the fine adjustment process of the crochet hook 31 can be completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. An adjusting device for adjusting a crochet of a sewing machine, comprising: a machine base (1); a machine head (2) arranged on the machine base (1); a sewing needle (22) arranged on the machine head (2); a sewing table (3) arranged between the machine base (1) and the machine head (2); articulate in crochet hook (31) in the platform of sewing up (3) and set up in the bottom of frame (1), be used for controlling the first foot pedal switch (11) that the sewing machine starts or stops, characterized by, sewing up the platform (3) with between the frame (1) the loading surface department be provided with, be used for to the adjustment mechanism that crochet hook (31) finely tuned, adjustment mechanism includes: a fixing lever (32) connected to one side of the crochet hook (31); a first traction head (33) hinged on one end of the fixed rod (32) far away from the crochet hook (31); a first traction rod (34) connected to one end of the first traction head (33); the swinging piece is connected to the first traction rod (34), and the traction assembly is arranged on the bearing surface of the machine base (1) and used for drawing the swinging piece to swing.

2. The adjusting device for adjusting a crochet of a sewing machine according to claim 1, characterized in that said traction assembly comprises: the traction equipment (4) is arranged on the bearing surface of the machine base (1); the second foot pedal switch (12) is arranged at the bottom of the machine base (1) and is electrically connected with the traction equipment (4); a second traction rod (41) connected to a traction end of the traction apparatus (4); the second traction head (42) is connected to one end, far away from the traction equipment (4), of the second traction rod (41) through a connecting piece, is hinged with one end of the swinging piece, and is provided with an elastic piece arranged on the second traction rod (41).

3. The adjusting device for adjusting a crochet of a sewing machine according to claim 2, characterized in that said elastic member comprises: a fixing ring (43) connected to the second traction rod (41); a first threaded hole (44) which is simultaneously opened on the fixing ring (43) and the second traction rod (41); a fixing screw (45) in threaded connection with the first threaded hole (44), and a spring (46) sleeved on the second traction rod (41) and connected with the fixing ring (43).

4. An adjustment device for adjusting a crochet of a sewing machine according to claim 2, characterized in that said connection element comprises: a ring (421) connected to one end of the second traction head (42) facing the traction device (4); a nut (422) attached to the ring (421); and the screw rod (411) is connected to one end, away from the traction equipment (4), of the second traction rod (41) and is in threaded connection with the nut (422).

5. An adjustment device for adjusting the crochet of a sewing machine according to claim 2, characterized in that a plurality of fixed blocks (5) slidably connected to said second traction bar (41) are mounted on the side of said sewing table (3).

6. An adjustment device for adjusting a crochet of a sewing machine according to claim 1, characterized in that said oscillating member comprises: a swing block (35) hinged to an end of the first traction rod (34) remote from the first traction head (33); a swinging rod (36) connected to the second traction head (42) through a universal ball in a rotating way, and a connecting rod (37) with one end connected to the swinging rod (36) and the other end connected to the swinging block (35).

7. An adjustment device for adjusting a crochet of a sewing machine according to claim 3, characterized in that the second traction bar (41) is movably sleeved with a rubber ring (412).

8. Adjusting device for adjusting the crochet of sewing machines according to claim 1, characterized in that the sewing table (3) is provided with a protection for protecting the adjusting mechanism, comprising: a protective shell (6) covering the adjusting mechanism; an extension plate (61) attached to one side of the protective case (6); a circular hole (62) penetrating the extension plate (61); the second threaded hole (38) is arranged on one side, close to the adjusting mechanism, of the sewing table (3) and corresponds to the round hole (62), and the bolt (7) penetrates through the round hole (62) and is in threaded connection with the second threaded hole (38).

Images