CN212103239U

CN212103239U - Thread trimming mechanism of sewing machine

Info

Publication number: CN212103239U
Application number: CN202020553083.8U
Authority: CN
Inventors: 李辉军; 顾爱国
Original assignee: Shanghai Jingshang Machinery Manufacturing Co ltd
Current assignee: Shanghai Jingshang Machinery Manufacturing Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-12-08
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a thread trimming mechanism of a sewing machine, which comprises a baffle plate, wherein the baffle plate is fixed on the sewing machine, the lower end of the front side wall of the baffle plate is hinged with a pressing plate, a reset structure is arranged between the baffle plate and the pressing plate, the front side wall of the pressing plate is provided with a first groove, the two ends of the first groove are both provided with second grooves, the second grooves are of an inverted T shape, a top block is connected in the second grooves in a sliding way, the upper end of the top block is provided with a slope, a second spring is arranged between the upper end of the slope and the side wall of the second groove, a sliding block is connected on an inclined cape in a sliding way, one end of the sliding block is provided with an extrusion block, the extrusion block is provided with a clamping plate, the utility model can be used by folding the pressing plate, saves space, realizes the movement of the extrusion block through the matching of the top block, the slope and, the scissors are prevented from being taken away, time delay is avoided, and using danger is increased.

Description

Thread trimming mechanism of sewing machine

Technical Field

The utility model relates to a sewing machine trimming technical field, concrete field is a sewing machine trimming mechanism.

Background

The input and output sewing machines are machines which interweave or sew one or more layers of material with one or more sewing threads to form one or more stitches in 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.

The sewing machine is composed of four parts of machine head, machine base, transmission and accessories.

The head is an essential part of the sewing machine. The sewing machine consists of four mechanisms of material needling, thread hooking, thread picking and feeding, auxiliary mechanisms of winding, material pressing, tooth falling and the like, and the motion of the mechanisms is reasonably matched and works circularly to sew up sewing materials.

The machine base is divided into two forms of a bedplate and a machine box. The table of the table type machine base plays a role of supporting the machine head and is used as a working table during sewing operation. The table board has various styles, such as one-drawer or multi-drawer folding type, cabinet type, desk type, etc. The machine box of the machine box type machine base plays a role of supporting and storing the machine head, so that the sewing machine is convenient to carry and store.

The transmission part of the sewing machine is composed of a frame, a hand crank or a motor and the like. The frame is the pillar of the machine, supporting the bedplate and the footboard. When the device is used, an operator steps on the pedal plate, the belt pulley is driven to rotate through the crank, and the machine head is driven to rotate through the belt. Most hand-operated devices or motors are directly mounted on the handpiece.

The accessories of the sewing machine comprise a needle, a bobbin, a screwdriver, an oil can and the like.

However, the sewing machine needs to be broken after being used, an operator generally handles the sewing machine with scissors manually, the scissors are taken out, potential safety hazards exist, time is delayed when the scissors are placed and stored, and the loss of the scissors increases the production cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewing machine thread trimming mechanism to there is the potential safety hazard in the scissors that proposes is taken to the removal in solving above-mentioned background art, and places and accomodate the scissors and also delay time, the loss of scissors also increases manufacturing cost's problem.

In order to achieve the above object, the present invention provides a thread trimming mechanism for a sewing machine, comprising a baffle fixed on the sewing machine, a pressing plate hinged to the lower end of the front side wall of the baffle, a reset structure arranged between the baffle and the pressing plate, a first groove arranged on the front side wall of the pressing plate, a second groove arranged at both ends of the first groove, a reverse T-shaped second groove, a top block slidably connected in the second groove, a slope arranged at the upper end of the top block, a second spring arranged between the upper end of the slope and the side wall of the second groove, a slider slidably connected on the oblique cape, an extruding block arranged at one end of the slider, a clamping plate arranged on the extruding block, a second spring arranged between the clamping plate and the second groove, a clamping groove arranged on the extruding block, and a blade clamped in the clamping groove, and a screw penetrates through the upper end of the clamping groove.

Preferably, a handle is arranged on the right side wall of the pressure plate.

Preferably, the lower side wall of the pressure plate is provided with an illuminating lamp.

Preferably, the front side wall of the baffle is inlaid with a storage box.

Preferably, the baffle is provided with a through groove, and the storage box is positioned in the through groove.

Preferably, the reset structure comprises a torsion spring, the torsion spring is fixed on the left side wall of the baffle, and one end of the torsion spring is fixedly connected with the left side wall of the pressing plate.

Preferably, the reset structure comprises an arc rod, one end of the arc rod is fixed on the upper side wall of the pressing plate, the other end of the arc rod penetrates through the baffle, and a reset spring is arranged between the other end of the arc rod and the rear side wall of the baffle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a sewing machine thread trimming mechanism accomodates the use through turning over the clamp plate, practices thrift the space, realizes the motion of crowded piece through the cooperation of kicking block, slope and slider, and then tailors the braided wire, and the mechanism wholeness can be stable, avoids the scissors to take away, delays the time, increases and uses dangerously, and blade accessible screw is changed simultaneously, practices thrift the cost.

Drawings

Fig. 1 is a schematic structural view of an in-use state of embodiment 1 of the present invention;

fig. 2 is an enlarged view of fig. 1 at a according to the present invention;

fig. 3 is a schematic structural view of the storage state of embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a use state of embodiment 2 of the present invention;

fig. 5 is a schematic structural view of the arc rod of the present invention.

In the figure: 1-baffle plate, 2-pressing plate, 301-torsion spring, 302-arc rod, 303-reset spring, 4-first groove, 5-second groove, 6-top block, 7-first spring, 8-sliding block, 9-extruding block, 10-clamping plate, 11-second spring, 12-clamping groove, 13-blade, 14-screw, 15-handle, 16-lighting lamp, 17-storage box and 18-through groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, the present invention provides a technical solution: a thread trimming mechanism of a sewing machine is shown in figure 1 and comprises a baffle plate 1, wherein the baffle plate 1 is fixed on the sewing machine, the baffle plate 1 is positioned right behind a needle head of the sewing machine, a pressing plate 2 is hinged to the lower end of the front side wall of the baffle plate 1, textiles are flattened through the pressing plate 2, the textiles are prevented from being folded unevenly and are damaged during thread trimming, a reset structure is arranged between the baffle plate 1 and the pressing plate 2, the pressing plate 2 is restored through the reset structure, a first groove 4 is formed in the front side wall of the pressing plate 2, the needle head and textile threads are avoided through the first groove 4, second grooves 5 are formed in two ends of the first groove 4, the second grooves 5 are inverted T-shaped, a jacking block 6 is connected in the second grooves 5 in a sliding mode, a slope is arranged at the upper end of the jacking block 6, and a first spring 7 is arranged between the upper end of the slope and the side wall of the, realize the top block 6 from restoring to throne through first spring 7, sliding connection has slider 8 on the drape to one side, the one end of slider 8 is equipped with crowded piece 9, be equipped with cardboard 10 on crowded piece 9, be equipped with second spring 11 between cardboard 10 and the second recess 5, realize crowded piece 9 from restoring to throne through the cooperation of second spring 11 and cardboard 10, top block 6 cooperation slope extrusion slider 8 in the second recess 5 during the use, through the crowded piece 9 motion of slider 8 sliding drive in the second recess 5, draw-in groove 12 has been seted up on crowded piece 9, blade 13 has been pegged graft in the draw-in groove 12, the upper end of draw-in groove 12 has run through screw 14, through draw-in groove 12 installation blade 13 to utilize screw 14 fastening.

Specifically, as shown in fig. 1, a handle 15 is provided on the right side wall of the pressing plate 2, and the pressing plate 2 is conveniently pulled and used by the handle 15.

Specifically, as shown in fig. 3, the lower side wall of the pressing plate 2 is provided with an illuminating lamp 16, so that the mechanism can provide illumination when in standby, and the sewing can be performed.

Specifically, as shown in fig. 1, a storage box 17 is embedded in the front side wall of the baffle 1, and the waste blades 13 can be placed in the storage box 17 for convenient and uniform recycling.

Specifically, as shown in fig. 1, the baffle 1 is provided with a through groove 18, the storage box 17 is located in the through groove 18, and an inspector can replace the blade 13 in the storage box 17 through the through groove 18 without affecting the working condition.

Specifically, as shown in fig. 1, the reset structure includes a torsion spring 301, the torsion spring 301 is fixed on the left side wall of the baffle 1, one end of the torsion spring 301 is fixedly connected to the left side wall of the pressing plate 2, and the pressing plate 2 and the baffle 1 are connected through the torsion spring 301, so that the pressing plate 2 has a self-reset structure.

The working principle is as follows: baffle 1 is located the dead astern of sewing machine syringe needle, syringe needle and weaving line are dodged to first recess 4, during the mechanism standby, 16 auxiliary lighting of light, when the sewing finishes the trimming, operating handle 15, step-down plate 2 overturns forward, clamp plate 2 level, kicking block 6 is vertical upward movement in second recess 5, compress first spring 7, extrude slider 8 through the slope simultaneously, through the crowded piece 9 motion of slide drive of slider 8 in second recess 5, make the blade 13 of fixing in draw-in groove 12 tailor the sewing line, tailor back pressure plate 2 and restore to the throne under torsional spring 301 effect, first spring 7 makes kicking block 6 restore to the throne simultaneously, second spring 11 makes the slider restore to the throne, accomplish a pruning.

Example 2: the difference between this embodiment and embodiment 1 is limited to the difference of the reset structure, and please refer to the description of embodiment 1 for the remaining structures not mentioned in this embodiment.

Specifically, as shown in fig. 5, the reset structure includes an arc rod 302, one end of the arc rod 302 is fixed on the upper side wall of the pressing plate 2, the other end of the arc rod 302 penetrates through the baffle plate 1, a reset spring 303 is arranged between the other end of the arc rod 302 and the rear side wall of the baffle plate 1, and the pressing plate 2 and the baffle plate 1 are connected through the matching of the reset spring 303 and the arc rod 302, so that the pressing plate 2 has a self-reset structure.

The working principle is as follows: baffle 1 is located the dead astern of sewing machine syringe needle, syringe needle and weaving line are dodged to first recess 4, during the mechanism standby, 16 auxiliary lighting of light, when the sewing finishes the trimming, operating handle 15, step-down plate 2 overturns forward, clamp plate 2 level, kicking block 6 is vertical upward movement in second recess 5, compress first spring 7, extrude slider 8 through the slope simultaneously, through the crowded piece 9 motion of slide drive of slider 8 in second recess 5, make the blade 13 of fixing in draw-in groove 12 tailor the sewing line, tailorre back clamp plate 2 and reset under reset spring 303 and arc pole 302's mating reaction, first spring 7 makes kicking block 6 reset simultaneously, second spring 11 makes the slider reset, accomplish once pruning.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sewing machine thread trimming mechanism, includes baffle (1), its characterized in that: the baffle (1) is fixed on a sewing machine, a pressing plate (2) is hinged to the lower end of the front side wall of the baffle (1), a reset structure is arranged between the baffle (1) and the pressing plate (2), a first groove (4) is formed in the front side wall of the pressing plate (2), second grooves (5) are formed in two ends of the first groove (4), the second grooves (5) are of an inverted T shape, a top block (6) is connected in the second grooves (5) in a sliding mode, a slope is arranged at the upper end of the top block (6), a first spring (7) is arranged between the upper end of the slope and the side wall of the second groove (5), a sliding block (8) is connected on the oblique cover in a sliding mode, a squeezing block (9) is arranged at one end of the sliding block (8), a clamping plate (10) is arranged on the squeezing block (9), and a second spring (11) is arranged between the clamping plate (10) and the second groove (5), a clamping groove (12) is formed in the extrusion block (9), a blade (13) is clamped in the clamping groove (12), and a screw (14) penetrates through the upper end of the clamping groove (12).

2. The thread trimming mechanism of a sewing machine as claimed in claim 1, wherein: the right side wall of the pressure plate (2) is provided with a handle (15).

3. The thread trimming mechanism of a sewing machine as claimed in claim 1, wherein: and an illuminating lamp (16) is arranged on the lower side wall of the pressing plate (2).

4. The thread trimming mechanism of a sewing machine as claimed in claim 1, wherein: the front side wall of the baffle (1) is embedded with a storage box (17).

5. The thread trimming mechanism of a sewing machine as claimed in claim 4, wherein: a through groove (18) is formed in the baffle plate (1), and the storage box (17) is located in the through groove (18).

6. The thread trimming mechanism of a sewing machine as claimed in claim 1, wherein: the reset structure comprises a torsion spring (301), the torsion spring (301) is fixed on the left side wall of the baffle plate (1), and one end of the torsion spring (301) is fixedly connected with the left side wall of the pressing plate (2).

7. The thread trimming mechanism of a sewing machine as claimed in claim 1, wherein: the reset structure comprises an arc-shaped rod (302), one end of the arc-shaped rod (302) is fixed on the upper side wall of the pressing plate (2), the other end of the arc-shaped rod (302) penetrates through the baffle (1), and a reset spring (303) is arranged between the other end of the arc-shaped rod (302) and the rear side wall of the baffle (1).