CN211734678U - Leather sewing machine - Google Patents

Abstract

The utility model discloses a leather sewing machine, which comprises a frame, a feeding frame arranged on the frame, a collecting roller arranged on the collecting frame, a folding device for folding leather, a sewing device and a cutting device for cutting waste edges, wherein the folding device comprises a first fixing frame arranged on the frame, a first limiting plate horizontally arranged on the first fixing frame, a second limiting plate vertically arranged corresponding to the first limiting plate, a bending plate arranged between the first limiting plate and the second limiting plate, a first fixing plate arranged on the frame, a driving plate arranged on the first fixing plate, a first driving piece for pushing the driving plate to move back and forth, a first limiting component for limiting the bending position of the leather and a second limiting component for limiting the two sides of the leather, the driving plate is fixedly connected with the bending plate, the first fixing plate is provided with a first sliding chute matched with the driving plate.

Description

Leather sewing machine

Technical Field

The utility model belongs to the technical field of the leather processing, especially, relate to a leather sewing machine.

Background

With the continuous development of social economy and the continuous improvement of the living standard of people, more and more families have private cars, and people often install automobile seat leather covers on the seats of the private cars in the using process of the private cars; generally speaking, when the enterprise is producing the car seat leather sheath, the car seat leather sheath is made up after the sample piece concatenation of a piece different shapes, and this sample piece is made up after by the leather fifty percent discount and is formed, but the sewing machine on the present market can't be automatic aligns the leather is accurate, and does not fix the leather, so, when follow-up sewing machine sews the leather, the phenomenon that the leather shifted appears easily, thereby can lead to the phenomenon that the dislocation appears in the leather, and then can cause scrapping of the leather after sewing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a leather sewing machine which can automatically fold and fix leather, aiming at overcoming the defects of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a leather sewing machine comprises a frame, a feeding frame arranged on the frame, a material collecting roller arranged on the material collecting frame, a folding device for folding leather in half, a sewing device and a cutting device for cutting waste edges, the folding device comprises a first fixing frame arranged on the frame, a first limiting plate horizontally arranged on the first fixing frame, a second limiting plate arranged corresponding to the first limiting plate up and down, a bending plate arranged between the first limiting plate and the second limiting plate, a first fixing plate arranged on the frame, a driving plate arranged on the first fixing plate, a first driving piece for pushing the driving plate to move back and forth, a first limiting component for limiting the bending position of the leather and a second limiting component for limiting two sides of the leather, the driving plate is fixedly connected with the bending plate, and the first fixing plate is provided with a first sliding chute matched with the driving plate; will treat that the sutural leather sends into between first fixed plate and the second fixed plate through the pay-off frame to align the middle part of leather with the board of bending, make the leather from middle fifty percent discount, then carry out the pressfitting to the leather both sides through the spacing subassembly of second, when preventing to remove the leather, the transposition appears in the department of sewing up of leather both sides.

Preferably, the rack is provided with two guide plates for guiding the leather to bend, the guide plates are arranged between the feeding frame and the first fixing frame, and the two guide plates are arranged in a vertically corresponding manner; can guide the leather through the guide board and buckle gradually, be convenient for the leather follow-up enter into carry out the fifty percent discount between first limiting plate and the second fixed plate.

Preferably, the first limiting assembly comprises a baffle arranged on the first limiting plate, a plurality of first rollers uniformly arranged on the baffle, a plurality of second rollers arranged on the bending plate and a baffle adjusting component for adjusting the position of the baffle; the center folding part of the leather is clamped and extruded by the baffle and the bending plate, so that the leather can be prevented from deviating from the center line by the folding line when the leather is driven to move by the material collecting roller.

Preferably, the baffle adjusting component comprises a second sliding chute arranged on the first limiting plate, a first connecting plate arranged on the baffle, and a first screw rod screwed on the first connecting plate, the first connecting plate can slide relative to the second sliding chute, one end of the first screw rod is rotatably connected in the second sliding chute, and the other end of the first screw rod extends out of the first fixing frame; the first connecting plate can be driven to slide in the second sliding groove by rotating the first screw rod, so that the baffle is driven to move, and the leather with different widths can be conveniently positioned and folded.

Preferably, the second limiting assembly comprises a plurality of elastic telescopic rods arranged on the first limiting plate and the second limiting plate, a clamping plate arranged on the elastic telescopic rods, and a plurality of third rollers arranged on the clamping plate; the clamping plates are pushed through the elastic telescopic rods, so that the two sides of the leather can be clamped together, the leather is prevented from shifting at the sewing positions on the two sides of the leather in the moving process, and the third roller is arranged, so that the leather can be normally moved.

Preferably, the first limiting plate and the second limiting plate are both provided with guide rollers; when the leather bending machine is used for reducing the friction between the leather bending machine and the first limiting plate and the friction between the leather bending machine and the second limiting plate, the leather abrasion is reduced.

Preferably, the bending plate is provided with an arc-shaped bending surface.

To sum up, will treat that the leather of sewing up sends into between first fixed plate and the second fixed plate through the pay-off frame to align the middle part of leather with the board of bending, make the leather from middle fifty percent discount, then carry out the pressfitting to the leather both sides through the spacing subassembly of second, when preventing to remove the leather, the transposition appears in the department of sewing up of leather both sides.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is an enlarged view of fig. 1 at B.

Fig. 4 is a top view of the present invention.

Fig. 5 is a cross-sectional view taken at a-a of fig. 4.

Fig. 6 is an enlarged view of fig. 5 at a.

Fig. 7 is an enlarged view at B of fig. 5.

Fig. 8 is a sectional view at B-B of fig. 4.

Fig. 9 is a sectional view at C-C of fig. 4.

Fig. 10 is an enlarged view of fig. 9 at a.

Fig. 11 is an enlarged view of fig. 10 at a.

Detailed Description

As shown in fig. 1-11, a leather sewing machine comprises a frame 1, a feeding frame 11, a receiving frame 12, a receiving roller 13, a folding device, a gluing device, a sewing device and a cutting device, wherein the feeding frame 11 is vertically fixed on the frame and used for clamping a leather raw material roller; the material collecting frame 12 is fixed on the frame; two ends of the material receiving roller 13 are respectively and rotatably connected to the material receiving frame, and the material receiving roller is driven to rotate by a motor; specifically, the folding device comprises a first fixing frame 2, a first limiting plate 21, a second limiting plate 22, a bending plate 23, a first fixing plate 24, a driving plate 25, a first driving piece 26, a guiding plate 27, a guiding roller 28, a first limiting assembly and a second limiting assembly, wherein the guiding plate 27 is an arc-shaped bending plate which is arranged correspondingly up and down and is fixed on the rack through a rod, the guiding plate is arranged obliquely, and the inclination angle is reduced from left to right; the first fixing frame 2 is fixed on the frame; the first limiting plate 21 is horizontally fixed on the first fixing frame; the second limiting plate 22 is horizontally fixed on the first fixing frame and is positioned right below the first limiting plate; the first fixing plate 24 is fixed on the first fixing frame, and a first sliding groove is formed in the first fixing plate; the driving plate 25 is inserted into the first fixing plate through the first sliding groove, and one end of the driving plate is inserted between the first limiting plate and the second limiting plate; the bending plate 23 is fixed at one end, extending into a position between the first limiting plate and the second limiting plate, of the driving plate, and is provided with an arc-shaped bending surface; the first driving piece 26 can be a cylinder, and the output end of the first driving piece is fixed on the driving plate; the guide rollers 28 are rotatably connected to the end portions of the first and second limit plates, respectively.

Further, the first limiting assembly comprises a baffle 3, a first roller 31, a second roller 32, a second chute 33, a first connecting plate 34 and a first screw 35, wherein the second chute 33 is arranged on the bottom surface of the first limiting plate; the baffle 3 is arranged between the first limiting plate and the second limiting plate; the first connecting plate 3 is fixed on the baffle and inserted into the second chute 33; the first screw 35 is a conventional metal screw which is screwed on the first connecting plate, and one end of the first screw is rotatably connected in the second chute; the other end of the first fixing frame extends out through the first fixing frame; the first rollers 31 are uniformly and rotatably connected to the side face of the baffle corresponding to the bending plate; the second roller 32 is uniformly connected to the bending plate in a rotating mode, the center folding position of the leather is clamped and extruded through the baffle and the bending plate, and the leather can be prevented from being deviated in the folding line and the center line when the material collecting roller drives the leather to move.

Preferably, the second limiting assembly comprises an elastic telescopic rod 37, a clamping plate 38 and a third roller 39, wherein the elastic telescopic rod 37 is a conventional metal elastic telescopic rod which is uniformly fixed on the bottom surface of the first limiting plate and the top surface of the second limiting plate; the clamping plate 38 is fixed on the end part of the elastic telescopic rod; the third rollers 39 are uniformly arranged on the clamping plate, the clamping plate is pushed by the elastic telescopic rod, the two sides of the leather can be clamped together, so that the sewing positions on the two sides of the leather are prevented from shifting in the leather moving process, and the third rollers are arranged to ensure that the leather can normally move.

Specifically, the gluing device comprises a first support plate 4, a gluing roller 41, a bearing plate 42, a glue storage box 40, a liquid delivery pump, a liquid pumping pipe, a liquid delivery pipe 44, a glue spreading roller 45, a third support plate 46, a first elastic part 47, a sealing ring 48, an arc-shaped bending part 49 and a compacting assembly, wherein the first support plate 4 is fixed on a first fixing frame; the glue coating roller 41 is internally provided with a glue storage cavity, the outer wall of the glue coating roller is uniformly provided with a plurality of glue coating holes 402, at least 2 glue coating rollers are arranged, preferably 2 glue coating rollers are arranged, and the glue coating rollers are respectively and rotatably connected to the first supporting plate; the bearing plate 42 is fixed on the clamping plate positioned below; the glue storage box 40 is fixed on the first fixing frame and used for storing glue; the infusion pump adopts a conventional glue pump which can be purchased directly in the market, and a liquid suction port of the infusion pump is communicated with the glue storage box 40 through a liquid suction pipe; the liquid delivery pipe 44 is a metal pipe, one end of the liquid delivery pipe is fixed at the liquid outlet of the infusion pump, the other end of the liquid delivery pipe is connected to the end of the glue spreader in a rotating mode through a sealing bearing and is communicated with the glue storage cavity, the leather is folded, the side edge of the leather positioned on the upper layer is lapped on the glue spreader, the leather positioned on the lower layer is positioned between the bearing plate and the glue spreader, the glue spreader presses the leather down to be in close contact with the bearing plate, the glue spreader is driven to rotate in the moving process of the leather, the glue positioned in the glue storage cavity flows to the top surface of the leather on the lower layer from the glue spreading hole uniformly, the rotating glue spreader can also spread the glue flowing on the leather, the glue is further uniformly coated on the leather on the lower layer, and then the two sides of the leather can be bonded together through the compaction component so as to prevent the; the third support plate 46 is fixed on the first support plate; the rubber spreading roller 45 is a round roller, and one end of the round roller is rotatably connected to the third supporting plate; the first elastic element 47 is a conventional spring which is sleeved on the rubber spreading roller; the sealing ring 48 is sleeved on the rubber spreading roller, fixes and fixedly connects the end part of the first elastic part and can slide relative to the rubber spreading roller; the arc bending portion 49 is disposed on the outer periphery of the seal ring and is arc-shaped.

Specifically, the compacting assembly comprises a second supporting plate 5, a mounting plate 51, a first rotating shaft 52, a pressing roller 53, a third sliding groove 54, a sliding block 55, a second screw 56 and a handle, wherein the second supporting plate 5 is fixed on the first supporting plate; the mounting plate 51 is fixed on the second support plate; the third chute 54 is arranged on the mounting plate; the sliding blocks 55 are symmetrically arranged in the third sliding grooves; the first rotating shafts 52 are respectively connected to the sliding blocks in a rotating manner; the compression roller 53 is made of rubber and is sleeved and fixed on the first rotating shaft; two ends of the second screw rod 56 are respectively and rotatably connected to the mounting plate, one half thread of the second screw rod is a left-hand thread, the other half thread of the second screw rod is a right-hand thread, and the threads at the two ends are respectively matched with the sliding block; the handle is fixed on the end part of the second screw rod, and the second screw rod is rotated to drive the compression roller to move, so that the distance between the compression rollers is changed, and leather with different thicknesses can be conveniently processed.

Specifically, the sewing device is a conventional sewing machine which can be purchased directly on the market, and the specific structure of the sewing device is not described in detail.

Specifically, the cutting device comprises a cutting table 6, a positioning plate 61, a cutting knife 62, a second fixing block 63, a driving shaft 64, a third driving piece 65, a sliding rail 66, a fourth supporting plate 67, a second driving piece 68, a pressing-down assembly, a waste edge collecting assembly and a polishing assembly, wherein the sliding rail 66 is fixed on the frame; the fourth supporting plate 67 is arranged on the slide rail and can slide relative to the slide rail; the second driving piece 68 is a conventional cylinder, and the output end of the second driving piece is fixed on the fourth supporting plate; the positioning plate 61 is fixed on the fourth supporting plate and is provided with a positioning groove; the third driving member 65 is a motor fixed on the positioning plate; the second fixing block 63 is fixed on the positioning plate; the driving shaft 64 is rotatably connected to the second fixed block, and one end of the driving shaft is fixed to the output shaft of the third driving member; the cutting knife 62 is arranged in the cutting groove and fixed on the end part of the driving shaft, the sewed leather passes through the positioning plate and the cutting table, the positioning plate is moved to align the positioning groove with the set cutting position, then the cutting knife is rotated, then the leather is pulled to move, the cutting knife automatically cuts the side edge of the leather, and then the automatic trimming of redundant sealing materials on the side edge of the leather is completed.

Specifically, the pressing assembly comprises a second elastic part 7, a pressing plate 71, a sliding rod 72 and a fourth roller, wherein the second elastic part 7 is a conventional spring which is uniformly fixed on the bottom surface of the positioning plate; the pressing plate 71 is fixed at the lower end of the second elastic piece and is provided with a cutting groove for a cutting knife to pass through; the lower end of the sliding rod 72 is fixed on the pressure plate, and the upper end of the sliding rod passes through the positioning plate; the fourth rollers are evenly arranged on the bottom surface of the pressing plate, the pressing plate is pushed by the second elastic piece to compress leather tightly, and then the leather is limited, so that the leather is prevented from moving obliquely in the moving process, and the accuracy of a cutting position is guaranteed.

Specifically, the waste collection assembly comprises an air pump, an air nozzle 8, an air supply pipe 81, a collection box 82, a blocking plate 83, a mounting cavity 84, a third elastic part 85 and a top plate 86, wherein the air pump is a conventional air pump; the air supply pipe 81 is a metal pipe, and one end of the air supply pipe is fixedly connected with an air outlet of the air pump; the air nozzle 8 is fixed at the end part of the air supply pipe and is aligned between the pressing plate and the cutting table; the collecting box 82 is fixed on the side surface of the cutting table, air is blown between the pressing plate and the cutting table through the air blowing nozzle, cut leather sealing materials can be blown down into the collecting box, waste materials are prevented from being accumulated on the cutting table, and the cutting knife can be cooled through air blowing; the blocking plate 83 is obliquely fixed on the bottom surface of the pressing plate; the mounting cavity 84 is formed in the barrier plate; the third elastic element 85 is a conventional spring, which is uniformly arranged in the mounting cavity, and the upper end of the third elastic element is fixed on the top of the mounting cavity 84; roof 86 is fixed at third elastic component lower extreme, then promotes the roof through third elastic component for the roof lower extreme contacts with the cutting all the time, guarantees that the waste material is whole to drop to the collection box in.

Specifically, the polishing assembly comprises a first fixing block 9, a push rod 91, a clamping fixing plate 92, a polishing plate 93, a mounting groove and a fastening bolt 95, wherein the first fixing block 9 is symmetrically fixed on the positioning plate relative to the cutting knife; the push rod 91 penetrates through the first fixing block; the clamping fixing plate 92 is fixed on the end part of the push rod; the mounting groove is formed in the clamping fixing plate; the grinding plate 93 is made of the same material as the grinding wheel and is arranged in the mounting groove; fastening bolt 95 spiro union is on the centre gripping fixed plate for on the fixed board of polishing, then when needs polish the cutting knife, need not the stop equipment, only need promote, make board and cutting knife contact of polishing, the cutting knife will take place the friction with the board of polishing in the pivoted in-process, and then accomplishes and polish, guarantee machining efficiency.

Claims (7)

1. The utility model provides a leather sewing machine, includes frame (1), locates pay-off frame (11) in frame (1), locate receive work or material rest (12) in frame (1), locate receive material roller (13) on work or material rest (12), be used for fifty percent discount device, the suturing device of fifty percent discount leather and be used for cutting the cutting device of slitter edge, its characterized in that: fifty percent discount device is including locating first mount (2), the level in the frame is located first limiting plate (21) on first mount (2), with second limiting plate (22) that first limiting plate (21) corresponds the setting from top to bottom, locate board (23) of bending between first limiting plate and the second limiting plate, locate first fixed plate (24) in the frame, locate drive plate (25) on the first fixed plate, promote first driving piece (26) of drive plate back-and-forth movement, be used for restricting the first spacing subassembly of leather department of bending and be used for restricting the spacing subassembly of second of leather both sides, the drive plate links firmly with the board of bending, first fixed plate is equipped with the first spout with drive plate complex.

2. The leather sewing machine of claim 1, wherein: be equipped with two guide boards (27) that are used for guiding the leather and buckle on frame (1), the guide board is located between pay-off frame and the first mount, and two guide boards correspond the setting from top to bottom.

3. The leather sewing machine of claim 1, wherein: the first limiting assembly comprises a baffle (3) arranged on the first limiting plate (21), a plurality of first rollers (31) evenly arranged on the baffle (3), a plurality of second rollers (32) arranged on the bending plate (23) and a baffle adjusting component used for adjusting the position of the baffle.

4. A leather stitching machine as defined in claim 3, wherein: baffle adjustment part is including locating second spout (33) on first limiting plate (21), locating first connecting plate (34) and spiro union on the baffle in first screw rod (35) on the first connecting plate, first connecting plate second spout relatively slides, first screw rod one end is rotated and is connected in the second spout, and the other end stretches out outside first mount.

5. The leather sewing machine of claim 1, wherein: the second limiting assembly comprises a plurality of elastic telescopic rods (37) arranged on the first limiting plate and the second limiting plate, a clamping plate (38) arranged on the elastic telescopic rods (37) and a plurality of third rollers (39) arranged on the clamping plate.

6. The leather sewing machine of claim 1, wherein: and guide rollers (28) are arranged on the first limiting plate and the second limiting plate.

7. The leather sewing machine of claim 1, wherein: the bending plate (23) is provided with an arc-shaped bending surface.

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