CN211596005U

CN211596005U - Sewing machine capable of quickly changing needle

Info

Publication number: CN211596005U
Application number: CN201922398869.7U
Authority: CN
Inventors: 牛兆明; 葛梅欣; 周艮川; 刘镇
Original assignee: Qingdao Zhaoming Knitting Co ltd
Current assignee: Qingdao Zhaoming Knitting Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-29
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a sewing machine capable of quickly changing needles, which comprises a sewing machine head, wherein a needle rod is arranged on the sewing machine head, a needle head is arranged on the needle rod, an open slot is arranged at one end of the needle head, which is far away from the direction of the needle rod, a needle seat is arranged in the open slot, a connecting rod is arranged on the needle seat along the width direction of the needle seat in a penetrating way, the two ends of the length direction of the connecting rod are rotatably connected to the inner side wall of the open slot, and a first needle and a second needle are respectively; connecting rod length direction's one end is connected with square fixture block, and the lateral wall of syringe needle is provided with the triangular prism, has cup jointed the fixed block that offsets with the lateral wall of syringe needle on the triangular prism, sets up the fixed orifices that supplies the fixture block card to go into on the fixed block. The utility model discloses but have the effect of quick replacement eedle.

Description

Sewing machine capable of quickly changing needle

Technical Field

The utility model belongs to the technical field of the technique of fabric processing equipment and specifically relates to a sewing machine that can trade needle fast is related to.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material.

The present chinese patent with the publication number CN202809195U provides a sewing machine without changing the needle pitch, which comprises a machine base, a control box and a sewing machine head, wherein the sewing machine head is provided with a needle bar, and a needle is arranged on the needle bar.

The above prior art solutions have the following drawbacks: when the sewing material is broken when thick in the use process, the sewing needle needs to be replaced, but the sewing needle is troublesome to remove, the production efficiency is influenced, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model aims at providing a sewing machine capable of quickly changing needles, which has the advantage of quickly changing needles.

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

a sewing machine capable of quickly changing needles comprises a sewing machine head, wherein a needle rod is mounted on the sewing machine head, a needle head is mounted on the needle rod, an open slot is formed in one end, far away from the direction of the needle rod, of the needle head, a needle seat is arranged in the open slot, a connecting rod penetrates through the needle seat along the width direction of the needle seat, two ends of the connecting rod in the length direction are rotatably connected to the inner side wall of the open slot, and a first needle and a second needle are mounted at two ends of the needle seat in the length direction respectively; the connecting rod length direction's one end is connected with square fixture block, the lateral wall of syringe needle is provided with the triangular prism, cup joint the fixed block that offsets with the lateral wall of syringe needle on the triangular prism, set up the fixed orifices that supplies the fixture block card to go into on the fixed block.

Through adopting above-mentioned technical scheme, at the sewing in-process, when first eedle rupture, the pulling fixed block for the fixture block shifts out from the fixed orifices, then rotates the frame, gets off the upset of second eedle, continues the operation through the second eedle, like this, does not influence normal production operation, and it is swift to change the eedle.

The utility model discloses further set up to: the one end that the syringe needle direction was kept away from to the triangular prism is provided with the stopper, the stopper is located the one side that the syringe needle direction was kept away from to the fixed block.

Through adopting above-mentioned technical scheme, the stopper setting is on the top of triangular prism, restricts the position that the fixed block is located triangular prism length direction, prevents to lead to its slippage at the in-process of slip fixed block.

The utility model discloses further set up to: the triangular prism is sleeved with a spring, and two ends of the spring in the length direction are respectively abutted to the fixed block and the limiting block.

By adopting the technical scheme, the spring is arranged between the fixed block and the limiting block, and the spring is in a slightly compressed state at the moment, so that the fixed block is abutted against the needle base, and the fixation of the fixed block is enhanced; move to the one end of keeping away from the needle file direction when the fixed block to compress the spring, make the fixture block shift out from the fixed orifices simultaneously, so that with connecting rod and fixture block upset, after the fixed block pine takes off, the spring release makes the fixed block auto-eject under the spring action of spring, and the fixture block reinserts in the fixed orifices, like this, has reduced workman's operation.

The utility model discloses further set up to: the outer side of the spring is sleeved with an elastic soft sleeve, and two ends of the elastic soft sleeve in the length direction are connected to two ends of the spring in the length direction respectively.

Through adopting above-mentioned technical scheme, the soft cover of elasticity sets up in the outside of spring to stretch out and draw back along with the flexible of spring, protect the spring through the soft cover of elasticity, also protect workman's hand simultaneously, prevent to be hindered by the spring clamp.

The utility model discloses further set up to: the limiting block comprises two semicircular blocks which are mutually and rotatably connected, abdicating grooves are respectively formed in the two semicircular blocks, and the abdicating grooves are mutually butted to form a hole for the triangular prism to pass through; the inside wall in groove of stepping down is provided with spacing hole, the lateral wall of triangular prism is provided with the gag lever post that inserts spacing downthehole.

Through adopting above-mentioned technical scheme, the stopper has two semicircle block groups to constitute, has realized dismantling between stopper and the triangular prism to be connected, is convenient for dismantle the stopper from the triangular prism to change the maintenance to spring and flexible cover.

The utility model discloses further set up to: the outer side wall of one of the semicircular blocks is provided with a magnetic part, and the other semicircular block is provided with an adsorption part magnetically attracted with the magnetic part.

Through adopting above-mentioned technical scheme, be provided with the magnetic part and the absorption piece that adsorb each other on two semicircle pieces respectively, through the mutual absorption of magnetic part and absorption piece, strengthen the connection between two semicircle pieces, strengthen being connected between stopper and the triangular prism.

The utility model discloses further set up to: the outer side wall of the fixed block is provided with a deflector rod, and the deflector rod is positioned at one end, far away from the needle head, of the fixed block.

Through adopting above-mentioned technical scheme, the driving lever setting is on the lateral wall of fixed block, is convenient for operate the fixed block through the driving lever, makes things convenient for staff's operation.

The utility model discloses further set up to: the outer side wall of the driving lever is wrapped with a rubber sleeve.

Through adopting above-mentioned technical scheme, the rubber sleeve plays the effect of protecting human hand.

To sum up, the utility model discloses a beneficial technological effect does:

1. in the sewing process, when the first machine needle is broken, the fixing block is pulled to enable the fixture block to move out of the fixing hole, then the machine base is rotated to turn the second machine needle down, and the operation is continued through the second machine needle, so that the normal production operation is not influenced, and the machine needle is replaced quickly;

2. the arrangement of the elastic soft sleeve and the rubber sleeve effectively protects the hands of a human body, and the safety operability of the device is improved.

Drawings

FIG. 1 is a schematic view showing a structure of a sewing machine capable of quickly changing a needle according to an embodiment.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a disassembly schematic diagram for embodying the connection relationship between the triangular prism and the fixed block in the embodiment.

Fig. 4 is an exploded view of an embodiment embodying the stop block structure.

In the figure, 1, a sewing machine head; 11. a needle bar; 2. a needle head; 21. an open slot; 3. a needle seat; 31. a connecting rod; 311. a clamping block; 32. a first needle; 33. a second needle; 4. a triangular prism; 41. a fixed block; 411. a fixing hole; 42. a limiting rod; 5. a limiting block; 51. a semicircular block; 511. a yielding groove; 5111. a limiting hole; 512. a magnetic member; 513. an adsorbing member; 6. a spring; 61. an elastic soft sleeve; 7. a deflector rod; 71. a rubber sleeve.

Detailed Description

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

Referring to fig. 1, in order to the utility model discloses a sewing machine capable of quickly changing needles, which comprises a sewing machine head 1, wherein a needle rod 11 is arranged on the sewing machine head 1, one end of the needle rod 11 far away from the direction of the sewing machine head 1 is fixed with a needle head 2 through screws, one end of the needle head 2 far away from the direction of the needle rod 11 is provided with an open slot 21, a needle seat 3 is arranged in the open slot 21, a connecting rod 31 is welded on the needle seat 3 along the width direction of the needle seat, two ends of the connecting rod 31 in the length direction are inserted on the inner side wall of the open slot 21, and the; a first needle 32 and a second needle 33 are respectively fixed at two ends of the needle base 3 in the length direction through screws, the first needle 32 and the second needle 33 are both vertically arranged, and the first needle 32 is positioned below the second needle 33; one end of the connecting rod 31 in the length direction extends out of the open slot 21, a clamping block 311 with a square cross section is integrally formed, a triangular prism 4 is welded on the outer side wall of the needle head 2, the length direction of the triangular prism 4 is perpendicular to the length direction of the needle head 2, a fixing block 41 which is abutted against the outer side wall of the needle head 2 is sleeved on the triangular prism 4, the fixing block 41 can slide along the length direction of the triangular prism 4, and a fixing hole 411 for clamping the clamping block 311 is formed in the fixing block 41; fix the fixture block 311 through the fixed block 41 to fixing the connecting rod 31 and the needle seat 3, when the first needle 32 is broken off in the using process, the fixed block 41 is slid to one side far away from the direction of the needle head 2, so that the fixture block 311 is moved out from the fixing hole 411, and then the connecting rod 31 is rotated, so that the second needle 33 is turned to the lower side.

Referring to fig. 1 and 2, a limiting block 5 is arranged at one end of the triangular prism 4 away from the needle 2, the fixing block 41 is located between the limiting block 5 and the needle 2, a spring 6 is sleeved on the outer side wall of the triangular prism 4, two ends of the spring 6 in the length direction respectively abut against the fixing block 41 and the limiting block 5, the spring 6 is in a compressed state, and under the elastic force action of the spring 6, the fixing block 41 is pushed to abut against the outer side wall of the handpiece; when a worker operates the fixing block 41 to move towards one side far away from the direction of the needle 2 along the length direction of the triangular prism 4, the fixture block 311 is moved out of the fixing hole 411, meanwhile, the fixing block 41 further compresses the spring 6, after the fixing block 41 is loosened, the fixing block 41 is automatically ejected under the elastic action of the spring 6, and the fixture block 311 is inserted into the fixing hole 411, so that the worker can conveniently operate.

Referring to fig. 2 and 3, an elastic soft sleeve 61 is sleeved on the outer side wall of the spring 6, the elastic soft sleeve 61 is preferably made of silica gel, two ends of the spring 6 in the length direction of the soft sleeve are respectively adhered to two ends of the spring 6 in the length direction, and the elastic soft sleeve 61 stretches and retracts synchronously with the spring 6 in the process of compressing and expanding the spring 6.

Referring to fig. 4, stopper 5 includes two semicircle pieces 51 that connect through hinge rotation each other, the groove 511 of stepping down has been seted up on two semicircle pieces 51 respectively, two groove 511 of stepping down dock each other and form the hole that supplies triangular prism 4 to pass, and spacing hole 5111 has all been seted up at two inside walls that step down groove 511, the lateral wall welding of triangular prism 4 has two gag lever post 42 that insert respectively in two spacing holes 5111, insert in spacing hole 5111 when gag lever post 42, gag lever post 42 limits the position that semicircle piece 51 is located on triangular prism 4 length direction. The rotation junction between two semicircle pieces 51 is located the top of triangular prism 4, and the lateral wall of one of them semicircle piece 51 has glued firmly magnet, and magnet is as magnetism spare 512, has glued firmly the iron plate on another semicircle piece 51, and the iron plate is as adsorbing the piece 513, and magnetism spare 512 and adsorbing the piece 513 all are located the one end of keeping away from two semicircle piece 51 mutual rotation junction directions, and pass through magnetism mutual absorption when magnetism spare 512 and adsorbing the piece 513, and then strengthen the fixed to two semicircle pieces 51.

Referring to fig. 3, a driving lever 7 is welded on the outer side wall of the fixing block 41, the driving lever 7 is located at one end of the fixing block 41 away from the needle 2, a rubber sleeve 71 wraps the outer side wall of the driving lever 7, and the fixing block 41 is convenient to operate through the driving lever 7.

The implementation principle of the embodiment is as follows: in the sewing process, when the first needle 32 is broken off in the using process, the driving lever 7 is operated by one hand, the driving lever 7 drives the fixing block 41 to move, so that the fixture block 311 is moved out of the fixing hole 411, and the fixing block 41 compresses the spring 6; simultaneously, the other hand rotates the needle holder 3, so that the needle holder 3 is turned over by 180 degrees, thereby moving the second needle 33 to the lower side; then, the shift lever 7 is released, and the fixing block 41 is ejected under the elastic force of the spring 6, so that the fixing block 311 is inserted into the fixing hole 411 again, the connecting rod 31 and the needle base 3 are fixed, the second needle 33 is further fixed, and the sewing can be continued through the second needle 33.

The stopper 5 comprises two semicircle pieces 51 to limit the stopper 5 to be located the ascending position of triangular prism 4 length direction through gag lever post 42, rotate two semicircle pieces 51, make gag lever post 42 break away from spacing hole 5111, can take off stopper 5 from triangular prism 4, so that change the maintenance spring 6 and the soft cover of elasticity 61.

When the present embodiment is idle, the damaged first needle 32 can be replaced and maintained.

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

1. The utility model provides a can trade sewing machine of needle fast, includes sewing machine head (1), installs needle bar (11) on sewing machine head (1), installs syringe needle (2), its characterized in that on needle bar (11): an open slot (21) is formed in one end, away from the needle rod (11), of the needle head (2), a needle seat (3) is arranged in the open slot (21), a connecting rod (31) penetrates through the needle seat (3) in the width direction of the needle seat, two ends of the connecting rod (31) in the length direction are rotatably connected to the inner side wall of the open slot (21), and a first needle (32) and a second needle (33) are mounted at two ends of the needle seat (3) in the length direction respectively; connecting rod (31) length direction's one end is connected with square fixture block (311), the lateral wall of syringe needle (2) is provided with triangular prism (4), triangular prism (4) go up cup joint with fixed block (41) that the lateral wall of syringe needle (2) offseted, set up fixed orifices (411) that supply fixture block (311) card to go into on fixed block (41).

2. The sewing machine capable of quickly changing a needle according to claim 1, wherein: one end of the triangular prism (4) far away from the direction of the needle head (2) is provided with a limiting block (5), and the limiting block (5) is located on one side of the fixing block (41) far away from the direction of the needle head (2).

3. A sewing machine with a quick-change needle as claimed in claim 2, wherein: the triangular prism (4) is sleeved with a spring (6), and two ends of the spring (6) in the length direction abut against the fixing block (41) and the limiting block (5) respectively.

4. A sewing machine with a quick-change needle as claimed in claim 3, wherein: the outer side of the spring (6) is sleeved with an elastic soft sleeve (61), and two ends of the elastic soft sleeve (61) in the length direction are connected to two ends of the spring (6) in the length direction respectively.

5. A sewing machine with a quick-change needle as claimed in claim 2, wherein: the limiting block (5) comprises two semicircular blocks (51) which are rotatably connected with each other, the two semicircular blocks (51) are respectively provided with an abdicating groove (511), and the two abdicating grooves (511) are mutually butted to form a hole for the triangular prism (4) to pass through; the inside wall of groove of stepping down (511) is provided with spacing hole (5111), the lateral wall of triangular prism (4) is provided with gag lever post (42) that inserts in spacing hole (5111).

6. The sewing machine capable of quickly changing needles as claimed in claim 5, wherein: the outer side wall of one semicircular block (51) is provided with a magnetic part (512), and the other semicircular block (51) is provided with an adsorption part (513) which is magnetically attracted with the magnetic part (512).

7. The sewing machine capable of quickly changing a needle according to claim 1, wherein: the outer side wall of the fixed block (41) is provided with a deflector rod (7), and the deflector rod (7) is located at one end, far away from the needle head (2), of the fixed block (41).

8. The sewing machine capable of quickly changing a needle according to claim 7, wherein: the outer side wall of the shifting lever (7) is wrapped with a rubber sleeve (71).