CN212955659U

CN212955659U - Sewing machine

Info

Publication number: CN212955659U
Application number: CN202021773555.7U
Authority: CN
Inventors: 陈其管; 陈再选
Original assignee: Wenzhou Chaowang Machinery Co Ltd
Current assignee: Wenzhou Chaowang Machinery Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-13
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a sewing machine, which comprises a frame and a machine head which can be pushed out to the side surface of the frame in a sliding way, wherein the machine head and the frame realize sliding through a sliding pair sliding adaptation of a linear rail; the side-slipping driving device for driving the machine head to slide out or retract is arranged on the rack; also comprises a seam positioning device. The utility model has the advantages of be convenient for maintain, the slip precision is high, and noise at work is low and the vibration is little, and the seam location is accurate repeatedly to fix a position.

Description

Sewing machine

Technical Field

The utility model relates to a sewing machine field, concretely relates to sewing machine.

Background

The existing sewing equipment has various types and different structures, and for the sewing machine on a production line, the sewing machine has requirements on the working reliability, the maintenance difficulty and the adjustment convenience due to large workload;

the adjustment of current sewing machine for considering maintenance and aircraft nose seam sets up a slidable bottom plate in the aircraft nose below, arranges the bottom plate both sides in the frame in the spout of predetermineeing and realizes sliding adjustment, and the cooperation sets up in the hand wheel and the lead screw of frame lateral part, utilizes the lead screw and sets up the screw-nut that sets up the bottom plate below to come the control aircraft nose to follow the bottom plate roll-off, but this structure has following shortcoming: bottom plate and spout adaptation clearance are big, cause aircraft nose vibrations, abnormal sound easily, it is big to adjust frictional force, the hand wheel drives the aircraft nose with the lead screw and slides and have the shortcoming that inefficiency, secondary positioning accuracy are low, simultaneously because of considering the equilibrium of atress, the hand wheel center often is located aircraft nose and motor straight line position between the two, this just leads to aircraft nose and motor when needing to be changed the drive belt, just can realize changing with dismantling the hand wheel, consequently the maintenance is wasted time and energy, the shortcoming of inefficiency.

SUMMERY OF THE UTILITY MODEL

Based on the problem, the utility model aims to provide a be convenient for maintain, the slip precision is high, and noise at work is low and the vibration is little, accurate sewing machine of seam location repetitive positioning.

Aiming at the problems, the following technical scheme is provided: a sewing machine comprises a rack and a machine head capable of sliding and pushing out towards the side face of the rack, wherein the machine head and the rack slide through sliding adaptation of a line rail sliding pair; the side-slipping driving device for driving the machine head to slide out or retract is arranged on the rack; also comprises a seam positioning device.

In the structure, according to the defects of the existing sewing machine, the original bottom plate is replaced by the linear rail sliding pair to be matched with the sliding groove for sliding, so that the sliding precision is effectively improved, the gap between the sliding pair is reduced, and the working vibration and the noise are effectively reduced; the sideslip driving device replaces the original driving of a screw rod and a screw rod nut, the efficiency of the machine head when the machine head slides out or in from the rack can be greatly improved, the labor intensity of maintenance personnel is reduced, the maintenance time is shortened, the production efficiency is improved, and meanwhile, the durability of equipment can be greatly improved.

The utility model is further arranged in that a leveling frame is arranged on the frame, the two line rail sliding pairs are arranged in parallel at intervals, and the two line rail sliding pairs are respectively positioned at two sides of the leveling frame; the fixed sliding pairs of the two linear rail sliding pairs are respectively fixed on the leveling frame through a height connecting block, the leveling frame is provided with a waist-shaped hole with the length direction vertically arranged, and the height connecting block is fixed through a bolt penetrating through the waist-shaped hole.

In the structure, the waist-shaped hole can ensure that the bolt can slide in the long diameter direction of the waist-shaped hole, so that the height connecting blocks are fixedly locked under different heights, and the final working height of the machine head is convenient to adjust.

The utility model discloses further set up to, be equipped with on the leveling frame and be located the piece of supporting of locating the vice below of sliding, support to have on the piece to offset with high connecting block bottom surface fine setting bolt soon.

In the structure, the fine setting bolt offsets with the height connecting block bottom surface when adjusting the aircraft nose height, realizes the fine setting of height connecting block through the rotatory fine setting bolt of toward not equidirectional rotation with the height of control height connecting block for the height of aircraft nose is more accurate, through the bolt with height connecting block and leveling frame locking after accomplishing the altitude mixture control can.

The utility model discloses further set up to, still include the loading board, be equipped with the altitude mixture control hole on the loading board, the aircraft nose is located the loading board top and is fixed through heightening bolt and altitude mixture control hole butt joint, the loading board below is fixed with the driving motor who is used for driving aircraft nose work, transmit power through the belt drive between driving motor and the aircraft nose.

Among the above-mentioned structure, altitude mixture control hole and heightening bolt adaptation for control aircraft nose to the height between the loading board, when needs are changed the drive belt, can loosen and heighten the bolt and make the aircraft nose height reduce the back, centre-to-centre spacing between aircraft nose and the driving motor reduces, be convenient for take out old drive belt and install new drive belt, will rotate the nut jack-up aircraft nose that heightens the bolt again after accomplishing new drive belt installation and make the centre-to-centre spacing between aircraft nose and the driving motor increase with this pretension drive belt.

The utility model discloses further set up to, the vice sliding pair that moves of line rail slip is fixed in on the loading board and decides the vice sliding pair that is sliding fit.

The utility model discloses further set up to, the drive arrangement that sideslips is the cylinder, the cylinder body is fixed and in the frame, the piston rod and the loading board of cylinder are connected.

In the structure, the cylinder driving has the advantages of high speed, high efficiency, small vibration and overload protection capability.

The utility model discloses further set up to, seam positioner is for being located the loading board, and the axis sets up with the vice sliding direction syntropy of line rail slip stop screw, stop screw is two, and two pairs of terminal surfaces of sliding decide with two sets of line rail slip when the aircraft nose is withdrawed offset.

In the structure, the limit screw abuts against the end face of the fixed sliding pair when the machine head is retracted, so that the working position of the machine head is controlled, and the adjustment of the seam position is realized.

The utility model discloses further set up to, decide the slip pair and be the slider, it is vice for the line rail to move the slip.

In the structure, the sliding block and the linear rail have the advantages of convenience in installation and maintenance and long service life.

The utility model has the advantages that: according to the defects of the existing sewing machine, the original bottom plate is replaced by the linear rail sliding pair to slide in a matched manner with the sliding groove, so that the sliding precision is effectively improved, the gap between the sliding pair is reduced, and the working vibration and noise are effectively reduced; the sideslip driving device replaces the original driving of a screw rod and a screw rod nut, the efficiency of the machine head when the machine head slides out or in from the rack can be greatly improved, the labor intensity of maintenance personnel is reduced, the maintenance time is shortened, the production efficiency is improved, and meanwhile, the durability of equipment can be greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a conventional sewing machine.

FIG. 2 is a schematic view of a head and frame connection structure of a conventional sewing machine.

Fig. 3 is a schematic view of the overall structure of the present invention.

Fig. 4 is a schematic view of the three-dimensional structure of the bottom view angle of the head of the present invention.

Fig. 5 is a schematic view of the top view angle of the handpiece of the present invention.

Fig. 6 is a schematic view of the perspective structure of the lateral part of the handpiece of the present invention.

The reference numbers in the figures mean: 10-a frame; 11-a linear rail sliding pair; 111-fixed sliding pair; 112-a sliding pair; 12-a side-slip drive; 121-a piston rod; 13-leveling frame; 131-kidney shaped holes; 132-a blocker; 133-fine tuning bolts; 14-height connecting blocks; 20-machine head; 21-a carrier plate; 211-height adjustment holes; 22-height adjustment bolt; 23-a drive motor; 24-a transmission belt; 25-limit screw.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 6, a sewing machine as shown in fig. 1 to 6 includes a frame 10 and a head 20 capable of sliding and pushing out to the side of the frame 10, wherein the head 20 and the frame 10 slide by sliding fit of a thread-rail sliding pair 11; a sideslip driving device 12 for driving the machine head 20 to slide out or retract is arranged on the frame 10; also comprises a seam positioning device.

In the structure, according to the defects of the existing sewing machine, the thread rail sliding pair 11 is additionally arranged on the original bottom plate to replace the original bottom plate and the sliding chute to slide in a matching way, so that the sliding precision is effectively improved, the gap between the sliding pair is reduced, and the working vibration and the noise are effectively reduced; the sideslip driving device 12 replaces the original driving of a screw rod and a screw nut, the efficiency of the machine head 20 in sliding out or in from the rack 10 can be greatly improved, the labor intensity of maintenance personnel is reduced, the maintenance time is shortened, the production efficiency is improved, and meanwhile, the durability of equipment can be greatly improved.

In this embodiment, the frame 10 is provided with a leveling frame 13, the two line rail sliding pairs 11 are arranged in parallel and spaced from each other, and the two line rail sliding pairs 11 are respectively located at two sides of the leveling frame 13; the fixed sliding pairs 111 of the two linear rail sliding pairs 11 are respectively fixed on the leveling frame 13 through height connecting blocks 14, waist-shaped holes 131 vertically arranged in the length-diameter direction are arranged on the leveling frame 13, and the height connecting blocks 14 are fixed through bolts (not shown in the figure) penetrating through the waist-shaped holes 131.

In the structure, the waist-shaped hole 131 can ensure that the bolt can slide in the long diameter direction of the waist-shaped hole 131, so that the height connecting block 14 is fixed and locked at different heights, and the final working height of the machine head 20 can be conveniently adjusted.

In this embodiment, the leveling frame 13 is provided with a supporting block 132 located below the positioning sliding pair 111, and the supporting block 132 is screwed with a fine adjustment bolt 133 abutting against the bottom surface of the height connecting block 14.

In the above structure, the fine tuning bolt 133 offsets with the bottom surface of the height connecting block 14 when adjusting the height of the machine head 20, and the fine tuning bolt 133 is rotated in different directions to control the height of the height connecting block 14 to realize the fine tuning of the height connecting block 14, so that the height of the machine head 20 is more accurate, and the height connecting block 14 is locked with the leveling frame 13 through the bolt after the height adjustment is completed.

In this embodiment, still include the loading board 21, be equipped with height-adjusting hole 211 on the loading board 21, aircraft nose 20 is located the loading board 21 top and is fixed with height-adjusting hole 211 butt joint through heightening bolt 22, be fixed with driving motor 23 that is used for driving aircraft nose 20 work below the loading board 21, pass through the belt transmission power transmission between driving motor 23 and the aircraft nose 20.

In the structure, the height adjusting hole 211 is matched with the height adjusting bolt 22 and used for controlling the height between the machine head 20 and the bearing plate 21, when the transmission belt 24 needs to be replaced, the height adjusting bolt 22 can be loosened to reduce the height of the machine head 20, the center distance between the machine head 20 and the driving motor 23 is reduced, the old transmission belt 24 can be taken out conveniently, a new transmission belt 24 is installed, and after the new transmission belt 24 is installed, the nut of the height adjusting bolt 22 is rotated again to jack the machine head 20, so that the center distance between the machine head 20 and the driving motor 23 is increased, and the transmission belt 24 is pre-tightened.

In this embodiment, the movable sliding pair 112 of the linear rail sliding pair 11 is fixed on the bearing plate 21 and is in sliding fit with the fixed sliding pair 111.

In this embodiment, the side-sliding driving device 12 is an air cylinder, a cylinder body of the air cylinder is fixed on the frame 10, and a piston rod 121 of the air cylinder is connected with the bearing plate 21.

In this embodiment, the seam positioning device is two limiting screws 25 located on the bearing plate 21 and having axes in the same direction as the sliding direction of the linear rail sliding pairs 11, and the two limiting screws abut against the end surfaces of the two fixed sliding pairs 111 of the two linear rail sliding pairs 11 when the handpiece is retracted.

In the above structure, the limit screw 25 abuts against the end face of the fixed sliding pair 111 when the machine head 20 is retracted, so as to control the working position of the machine head 20 and realize the adjustment of the seam position.

In this embodiment, the fixed sliding pair 111 is a sliding block, and the movable sliding pair 112 is a linear rail.

The utility model has the advantages that: according to the defects of the existing sewing machine, the original bottom plate is additionally provided with the linear rail sliding pair 11 to replace the original bottom plate and the sliding chute to slide in a matching way, so that the sliding precision is effectively improved, the gap between the sliding pair is reduced, and the working vibration and the noise are effectively reduced; the sideslip driving device 12 replaces the original driving of a screw rod and a screw nut, the efficiency of the machine head 20 in sliding out or in from the rack 10 can be greatly improved, the labor intensity of maintenance personnel is reduced, the maintenance time is shortened, the production efficiency is improved, and meanwhile, the durability of equipment can be greatly improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a sewing machine, includes the frame and can slide the aircraft nose that releases toward the frame side, its characterized in that: the machine head and the machine frame slide through the sliding adaptation of the linear rail sliding pair; the side-slipping driving device for driving the machine head to slide out or retract is arranged on the rack; also comprises a seam positioning device.

2. A sewing machine according to claim 1, wherein: the frame is provided with a leveling frame, the two line rail sliding pairs are arranged in parallel at intervals, and the two line rail sliding pairs are respectively positioned at two sides of the leveling frame; the fixed sliding pairs of the two linear rail sliding pairs are respectively fixed on the leveling frame through a height connecting block, the leveling frame is provided with a waist-shaped hole with the length direction vertically arranged, and the height connecting block is fixed through a bolt penetrating through the waist-shaped hole.

3. A sewing machine according to claim 2, wherein: and a support block positioned below the fixed sliding pair is arranged on the leveling frame, and a fine adjustment bolt which is abutted against the bottom surface of the height connecting block is screwed on the support block.

4. A sewing machine according to claim 2, wherein: the novel aircraft nose bearing is characterized by further comprising a bearing plate, wherein height adjusting holes are formed in the bearing plate, the aircraft nose is located above the bearing plate and is fixedly connected with the height adjusting holes in a butt joint mode through height adjusting bolts, a driving motor used for driving the aircraft nose to work is fixed below the bearing plate, and power is transmitted between the driving motor and the aircraft nose through belt transmission.

5. A sewing machine according to claim 4, characterized in that: and the movable sliding pair of the linear rail sliding pair is fixed on the bearing plate and is in sliding fit with the fixed sliding pair.

6. A sewing machine according to claim 4, characterized in that: the side-slipping driving device is an air cylinder, the air cylinder body is fixed on the rack, and a piston rod of the air cylinder is connected with the bearing plate.

7. A sewing machine according to claim 4, characterized in that: the seam positioning device is a limiting screw rod which is positioned on the bearing plate, the axis of the limiting screw rod is arranged in the same direction with the sliding direction of the linear rail sliding pair, and the two limiting screw rods are abutted against the end faces of the two fixed sliding pairs of the two groups of linear rail sliding pairs when the machine head is retracted.

8. A sewing machine according to claim 5, wherein: the fixed sliding pair is a sliding block, and the movable sliding pair is a linear rail.