CN215829037U

CN215829037U - Liftable sewing machine

Info

Publication number: CN215829037U
Application number: CN202122223999.4U
Authority: CN
Inventors: 朱焕忠; 刘宝山; 林岚
Original assignee: Hebei Zhiqiang Sewing Equipment Co ltd
Current assignee: Hebei Zhiqiang Sewing Equipment Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-15
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to the technical field of sewing machines, in particular to a liftable sewing machine; the needle assembly can be adjusted in a lifting way, so that thick materials can be conveniently sewn, and the bending of the needle part at the needle assembly can be prevented; the needle assembly is arranged on the machine body in a vertically sliding mode, an upper shaft rear section is arranged on the machine body, an upper shaft front section used for transmitting power is arranged on the needle assembly, the upper shaft rear section is in transmission connection with the upper shaft front section through the lifting transmission assembly, the driving cylinder is fixedly arranged on the machine body, the output end of the driving cylinder is fixedly connected with the needle assembly, a guide mechanism is fixedly arranged on the machine body, and the needle assembly is arranged on the guide mechanism in a vertically sliding mode; the driving cylinder is a hydraulic rod or a pneumatic rod.

Description

Liftable sewing machine

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a liftable sewing machine.

Background

As is well known, a sewing machine which can be lifted is a device for sewing heavy materials; in the existing sewing machine, when the sewing machine works, a sewing material is placed under the needle assembly by an operator, and the sewing machine head assembly sews the material. When the sewing levels the material, and the total thickness is less than sewing thickness of sewing machine itself, can not have the problem, nevertheless at sewing closed loop heavy material to material outside thickness is greater than sewing thickness of sewing machine itself far away, and the material can't be put sewing machine head assembly below and sew, has certain use limitation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the lifting sewing machine which can carry out lifting adjustment, is convenient for sewing thick materials and can prevent the pricking pin part at the pricking pin component from being bent.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the needle assembly is arranged on the machine body in a vertically sliding mode, an upper shaft rear section is arranged on the machine body, an upper shaft front section used for transmitting power is arranged on the needle assembly, the upper shaft rear section is in transmission connection with the upper shaft front section through the lifting transmission assembly, the driving cylinder is fixedly arranged on the machine body, the output end of the driving cylinder is fixedly connected with the needle assembly, a guide mechanism is fixedly arranged on the machine body, and the needle assembly is arranged on the guide mechanism in a vertically sliding mode; the driving cylinder is a hydraulic rod or a pneumatic rod.

Preferably, the lifting transmission assembly comprises a transmission shaft, two groups of mounting plates, two groups of first synchronizing wheels, two groups of second synchronizing wheels and two groups of synchronous belts, the two groups of mounting plates are respectively and rotatably arranged on the machine body and the pricking pin assembly, the two groups of first synchronizing wheels are respectively and fixedly arranged on the rear section and the front section of the upper shaft, the transmission shaft is rotatably arranged between the two groups of mounting plates, the two groups of second synchronizing wheels are fixedly arranged on the transmission shaft, and the first synchronizing wheels and the second synchronizing wheels which are adjacent to the same mounting plate are connected through synchronous belt synchronous transmission.

Preferably, the guide mechanism comprises three groups of guide rods and guide rails, the guide rails are fixedly arranged at the right part of the machine body, the two groups of guide rods are fixedly arranged at the front part and the rear part of the machine body respectively.

Preferably, two groups of buffer valves are fixedly arranged on the machine body; the cushion valve is a pneumatic cushion valve or a hydraulic cushion valve.

Preferably, two groups of fixing rods are arranged between the output end of the driving cylinder and the needle assembly.

Preferably, all be provided with the mounting groove on two sets of mounting panels, install the tight dish that rises in the mounting groove, the transmission shaft is rotatable to be installed on the tight dish that rises.

Preferably, a rubber buffer block is arranged at the top of the buffer valve.

(III) advantageous effects

Compared with the prior art, the utility model provides a liftable sewing machine, which has the following beneficial effects: this sewing machine of liftable, through starting the driving cylinder, make the driving cylinder drive the felting needle subassembly and shift up, felting needle portion on the felting needle subassembly risees, can place thick material in felting needle portion below, provides power for the upper shaft back end through outside actuating mechanism, through the transmission of lift transmission subassembly back, the upper shaft back end provides power for the felting needle portion on the felting needle subassembly, to thick material make up can, under guiding mechanism's effect, vertical removal about felting needle portion on the felting needle subassembly keeps can make, avoid felting needle portion to appear buckling.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of a front view configuration of the present invention;

FIG. 3 is a schematic diagram of the right-hand side view of the present invention;

FIG. 4 is a schematic view of the lifting drive assembly of the present invention in conjunction with the rear upper shaft section and the front upper shaft section;

in the drawings, the reference numbers: 1. a body; 2. a lancet assembly; 3. a drive shaft; 4. a lifting transmission assembly; 5. a drive cylinder; 6. an upper shaft rear section; 7. an upper shaft front section; 8. mounting a plate; 9. a first synchronizing wheel; 10. a second synchronizing wheel; 11. a synchronous belt; 12. a guide bar; 13. a guide rail; 14. a cushion valve; 15. fixing the rod; 16. a tensioning disc; 17. and a rubber buffer block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the sewing machine of the utility model comprises a machine body 1, a needle assembly 2, a lifting transmission assembly 4 and a driving cylinder 5 for providing lifting power for the needle assembly 2, wherein the needle assembly 2 is arranged on the machine body 1 in a vertically sliding manner, an upper shaft rear section 6 is arranged on the machine body 1, an upper shaft front section 7 for transmitting power is arranged on the needle assembly 2, the upper shaft rear section 6 and the upper shaft front section 7 are in transmission connection through the lifting transmission assembly 4, the driving cylinder 5 is fixedly arranged on the machine body 1, the output end of the driving cylinder 5 is fixedly connected with the needle assembly 2, a guide mechanism is fixedly arranged on the machine body 1, and the needle assembly 2 is arranged on the guide mechanism in a vertically sliding manner; the driving cylinder 5 is a hydraulic rod or a pneumatic rod; through starting the driving cylinder 5, make the driving cylinder 5 drive the felting needle subassembly 2 and move up, the felting needle portion on the felting needle subassembly 2 risees, can place thick material in felting needle portion below, provide power for upper shaft back end 6 through outside actuating mechanism, after the transmission of lift transmission subassembly 4, upper shaft back end 6 provides power for the felting needle portion on the felting needle subassembly 2, to thick material make up can, under guiding mechanism's effect, can make the felting needle portion on the felting needle subassembly 2 keep vertical movement from top to bottom, avoid the felting needle portion to appear buckling.

The utility model relates to a liftable sewing machine, wherein a lifting transmission assembly 4 comprises a transmission shaft 3, two groups of mounting plates 8, two groups of first synchronous wheels 9, two groups of second synchronous wheels 10 and two groups of synchronous belts 11, the two groups of mounting plates 8 are respectively and rotatably arranged on a machine body 1 and a needle assembly 2, the two groups of first synchronous wheels 9 are respectively and fixedly arranged on an upper shaft rear section 6 and an upper shaft front section 7, the transmission shaft 3 is rotatably arranged between the two groups of mounting plates 8, the two groups of second synchronous wheels 10 are fixedly arranged on the transmission shaft 3, and the first synchronous wheels 9 and the second synchronous wheels 10 which are adjacent to the same mounting plate 8 are in synchronous transmission connection through the synchronous belts 11; the rear upper shaft section 6 transmits power to a corresponding first synchronous wheel 9, and the power is transmitted to the front upper shaft section 7 through two groups of synchronous belts 11, a transmission shaft 3 and two groups of second synchronous wheels 10, so that the normal operation of the needle assembly 2 is realized.

The utility model relates to a liftable sewing machine, wherein a guide mechanism comprises three groups of guide rods 12 and guide rails 13, the guide rails 13 are fixedly arranged at the right part of a machine body 1, the guide rods 12 are two groups, and the two groups of guide rods 12 are respectively and fixedly arranged at the front part and the rear part of the machine body 1; the guide bar 12 and the guide rail 13 are fixedly mounted at different positions on the machine body 1 to ensure vertical movement of the lancet assembly 2.

The utility model relates to a liftable sewing machine, wherein two groups of buffer valves 14 are fixedly arranged on a machine body 1; the cushion valve 14 is a pneumatic cushion valve or a hydraulic cushion valve; when the puncture needle assembly 2 falls to the buffer valve 14, the output end of the buffer valve 14 retracts synchronously along with the falling of the puncture needle assembly 2, and the descending impact force of the puncture needle assembly 2 can be slowly released under the action of the buffer valve 14, so that the situation that the puncture needle part on the puncture needle assembly 2 is damaged due to hard landing is avoided, and a certain protection effect is realized on equipment.

According to the liftable sewing machine, two groups of fixing rods 15 are arranged between the output end of the driving cylinder 5 and the needle assembly 2; the stability of the connection of the output end of the driving cylinder 5 and the lancet assembly 2 can be increased by the arrangement of two sets of fixing rods 15.

According to the liftable sewing machine, the two groups of mounting plates 8 are respectively provided with the mounting grooves, the tensioning discs 16 are mounted in the mounting grooves, and the transmission shaft 3 can be rotatably mounted on the tensioning discs 16; the distance between the first synchronous wheel 9 and the second synchronous wheel 10 on the same mounting plate 8 is adjusted by adjusting the position of the tension disc 16 in the mounting groove, so that the synchronous belt 11 is in a better transmission relaxation state.

According to the liftable sewing machine, the rubber buffer block 17 is arranged at the top of the buffer valve 14; through the arrangement of the rubber buffer block 17, the direct hard contact between the needle assembly 2 and the buffer valve 14 can be avoided, and the noise generated in the impact process can be reduced.

When the needle assembly is used, the driving cylinder 5 is started to drive the pricking needle assembly 2 to move upwards, the pricking needle part on the pricking needle assembly 2 rises, thick materials can be placed below the pricking needle part, an external driving mechanism provides power for the upper shaft rear section 6, the upper shaft rear section 6 provides power for the pricking needle part on the pricking needle assembly 2 after transmission of the lifting transmission assembly 4, the thick materials can be sewn, and the pricking needle part on the pricking needle assembly 2 can keep moving vertically under the action of the guide mechanism, so that the pricking needle part is prevented from being bent; the rear upper shaft section 6 transmits power to a corresponding first synchronous wheel 9, and the power is transmitted to the front upper shaft section 7 through two groups of synchronous belts 11, a transmission shaft 3 and two groups of second synchronous wheels 10 so as to realize the normal operation of the needle assembly 2; the guide rod 12 and the guide rail 13 are fixedly arranged at different positions on the machine body 1 so as to ensure the vertical movement of the needle assembly 2; when the puncture needle assembly 2 falls to the buffer valve 14, the output end of the buffer valve 14 retracts synchronously along with the falling of the puncture needle assembly 2, and the falling impact force of the puncture needle assembly 2 can be slowly released under the action of the buffer valve 14, so that the puncture needle part on the puncture needle assembly 2 is prevented from being damaged due to hard landing, and a certain protection effect is realized on equipment; the stability of the connection between the output end of the driving cylinder 5 and the needle assembly 2 can be improved by arranging two groups of fixing rods 15; the distance between the first synchronous wheel 9 and the second synchronous wheel 10 on the same mounting plate 8 is adjusted by adjusting the position of the tension disc 16 in the mounting groove, so that the synchronous belt 11 is in a better transmission relaxation state; through the arrangement of the rubber buffer block 17, the direct hard contact between the needle assembly 2 and the buffer valve 14 can be avoided, and the noise generated in the impact process can be reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lifting sewing machine is characterized by comprising a machine body (1), a needle assembly (2), a lifting transmission assembly (4) and a driving cylinder (5) for providing lifting power for the needle assembly (2), the pricking pin component (2) can be arranged on the machine body (1) in a vertically sliding manner, an upper shaft rear section (6) is arranged on the machine body (1), the pricking pin component (2) is provided with an upper shaft front section (7) for transmitting power, the upper shaft rear section (6) is in transmission connection with the upper shaft front section (7) through the lifting transmission component (4), the driving cylinder (5) is fixedly arranged on the machine body (1), the output end of the driving cylinder (5) is fixedly connected with the pricking pin component (2), the body (1) is fixedly provided with a guide mechanism, and the pricking pin component (2) is arranged on the guide mechanism in a vertically sliding manner.

2. The sewing machine capable of ascending and descending according to claim 1, wherein the lifting transmission assembly (4) comprises a transmission shaft (3), two sets of mounting plates (8), two sets of first synchronizing wheels (9), two sets of second synchronizing wheels (10) and two sets of synchronous belts (11), the two sets of mounting plates (8) are respectively and rotatably arranged on the machine body (1) and the needle assembly (2), the two sets of first synchronizing wheels (9) are respectively and fixedly arranged on the rear upper shaft section (6) and the front upper shaft section (7), the transmission shaft (3) is rotatably arranged between the two sets of mounting plates (8), the two sets of second synchronizing wheels (10) are fixedly arranged on the transmission shaft (3), and the first synchronizing wheels (9) and the second synchronizing wheels (10) adjacent to the same mounting plate (8) are connected through the synchronous belts (11) in a synchronous transmission manner.

3. The liftable sewing machine according to claim 1, wherein the guide mechanism comprises three groups of guide rods (12) and three groups of guide rails (13), the guide rails (13) are fixedly arranged at the right part of the machine body (1), the two groups of guide rods (12) are fixedly arranged at the front part and the rear part of the machine body (1), respectively.

4. The liftable sewing machine according to claim 1, wherein two groups of cushion valves (14) are fixedly arranged on the machine body (1).

5. A liftable sewing machine according to claim 1, wherein two sets of fixed rods (15) are provided between the output end of the driving cylinder (5) and the needle assembly (2).

6. The liftable sewing machine according to claim 4, wherein each of the two sets of mounting plates (8) is provided with a mounting groove, the mounting grooves are provided with the tension discs (16), and the transmission shaft (3) is rotatably mounted on the tension discs (16).

7. A liftable sewing machine according to claim 4, wherein the top of the cushion valve (14) is provided with a rubber cushion block (17).