CN113668148A

CN113668148A - Leather sheet production is with sewing up equipment with structure of rectifying

Info

Publication number: CN113668148A
Application number: CN202110953497.9A
Authority: CN
Inventors: 舒芬
Original assignee: Hunan Hangshuo Sporting Goods Co ltd
Current assignee: Hunan Hangshuo Sporting Goods Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2021-11-19

Abstract

The invention relates to the technical field of ball production, in particular to a sewing device with a deviation rectifying structure for leather sheet production. This kind of sewing equipment is used in skin piece production with structure of rectifying, utilize location seam pressing mechanism drive skin piece to rectify the mechanism, make synchronous upwards wobbling dial the position push arm and can form the action that similar claw body presss from both sides and promote the skin piece on putting the leather seat and carry out the offset, it is corresponding to putting the leather seat position to draw back to the position push arm of dialling by vertical state, thereby realized fast self-alignment between the skin piece, compare in manual operation, should align more stably, high efficiency, high accuracy, utilize relative displacement to put the leather seat and press the seam seat with two skin piece clamping location that need sew up, the seam needle of sewing machine only need insert into the needle logical groove and can sew up along the edge of skin piece, not only can effectively completely cut off the interference of external to the skin piece in the sewing process, and be convenient for accurate control make up the point.

Description

Leather sheet production is with sewing up equipment with structure of rectifying

Technical Field

The invention relates to the technical field of ball production, in particular to a sewing device with a deviation rectifying structure for leather sheet production.

Background

Football, has the reputation of "world first sport", is the single sports of the most influential power of world sports, and the common football production flow at present is: 1. putting the rubber artificial leather on a platform, and punching the artificial leather into polygonal sheets with the same shape by using a shearing machine; 2. sewing the leather sheet; 3. turning over the sewn ball bag to ensure smooth surface; 4. weighing and embedding the air bag; 5. inflating and printing, and inflating the ball body by adopting special equipment, so that the air bag is tightly attached to the ball body; 6. cutting the leather wrapping the outer part of the football; 7. uniformly gluing the ball body; 8. and (3) bonding the cut leather on the ball body through special equipment.

Most of the leather sheets are sewn manually by a sewing machine. The inventor finds the following problems in the prior art in the process of researching the common flap sewing: 1. the two leather sheets are mainly aligned manually, which is not only troublesome, but also affects the efficiency; 2. the aligned flaps need to be manually kept in position during the sewing process, and the sewing points are not convenient to control accurately.

In view of this, we propose a sewing device with deviation rectifying structure for leather sheet production.

Disclosure of Invention

The invention aims to provide a sewing device with a deviation rectifying structure for leather sheet production, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a leather sheet production is with sewing up equipment with structure of rectifying, includes the workstation, one side fixed mounting of workstation top surface has the sewing machine, and the top surface of workstation is located the sewing machine downside and rotates and be connected with location seam pressing mechanism.

Preferably, location seam pressing mechanism is including putting the skin seat, it rotates to connect on the workstation to put the skin seat, and puts the skin seat upside and be provided with the seam pressing seat, and seam pressing seat and the side of putting the skin seat surface all weld the angle seat that corresponds each other, the through hole has been seted up on the surface of angle seat, two-way slide bar has been inserted to the inside cunning of through hole.

The middle part on the surface of the bidirectional slide bar is fixedly sleeved with a spacing ring, the upper side and the lower side of the surface of the bidirectional slide bar are movably sleeved with secondary pressure springs, the two secondary pressure springs are symmetrically arranged by taking the spacing ring as a midpoint, and two ends of each secondary pressure spring are respectively lapped with the angle seat and the spacing ring.

The surface of the seam pressing seat is provided with a needle feeding through groove matched with the sewing machine, the needle feeding through groove divides the seam pressing seat into an outer ring and an inner seat, and the outer ring is fixedly connected with the inner seat through an angle bar.

Preferably, the top end of the bidirectional slide rod is welded with a limiting head, and a leather sheet position correcting mechanism matched with the bottom end of the bidirectional slide rod and the seam pressing seat is arranged in the leather placing seat.

Preferably, the leather sheet entangles position mechanism and includes limit position shaft hole, limit position shaft hole is seted up in the side department of putting the leather seat inside, and puts the surface of leather seat and lie in both sides port department in limit position shaft hole and all offer the race rather than the intercommunication.

The inside in limit position shaft hole is rotated and is pegged graft there is the axostylus axostyle, the both ends of axostylus axostyle just are located homonymy race and all fixedly cup joint the gang wheel, the caulking groove has been seted up to the downside on bidirectional slide bar surface, and the inside welding of caulking groove has the rack with gang wheel intermeshing.

Put the side department fixedly connected with U-shaped seat on leather seat surface, and rotate on the U-shaped seat and be connected with and dial the position and push away the arm, put the side department on leather seat surface and set up the outer logical groove with the intercommunication in limit position shaft hole, dial the inner of position and push away the arm and be located outer logical inslot and set up the flank of tooth, the surface of axostylus axostyle is seted up and is had the interior tooth's socket with flank of tooth intermeshing, dial the end department of position and push away the arm and the side of caulking seat and all inlay the magnetism piece of mutually supporting, put a plurality of positions of following that the axostylus axostyle is rotatory and push away the arm of putting of leather seat side department.

Preferably, the top surface of the leather placing seat is provided with a blank pressing groove, and the bottom surface of the seam pressing seat is integrally formed with a blank pressing convex seat matched with the blank pressing groove.

Preferably, the number of the corner seats is twelve, and the twelve corner seats are respectively arranged at the protruding corners of the leather placing seat and the seam pressing seat by taking six corner seats as a group.

Preferably, a bearing is embedded at the joint of the shaft lever and the side shaft hole.

Preferably, the shifting push arm is made of plastic steel material.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the positioning and seam-pressing mechanism and the leather sheet position-rectifying mechanism are arranged, and the clamping action of the positioning and seam-pressing mechanism is utilized to drive the leather sheet position-rectifying mechanism, so that the synchronously and upwards swinging shifting and pushing arm can form actions similar to clamping of a claw body to push the leather sheet on the leather placing seat to shift the position until the shifting and pushing arm in a vertical state is contracted to correspond to the position of the leather placing seat, and therefore, the quick self-alignment between the leather sheets is realized.

According to the invention, the positioning and seam pressing mechanism is arranged, the two leather sheets to be sewn are clamped and positioned by the leather placing seat and the seam pressing seat which are displaced relatively, and the sewing needle of the sewing machine can be sewn along the edge of the leather sheet only by being inserted into the needle inserting through groove, so that the interference of the outside on the leather sheet in the sewing process can be effectively isolated, and the sewing point can be controlled accurately.

According to the invention, the magnetic suction blocks are arranged at the end of the shifting push arm and on the seam pressing seat, so that the top end of the shifting push arm in a vertical state and the seam pressing seat are mutually attracted and pulled by the magnetic suction blocks to realize the holding of the seam pressing seat and the leather placing seat in a clamping state, the stability of alignment, clamping and sewing is further improved, and the operation is more convenient.

Drawings

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

FIG. 2 is a front sectional view of the positioning and seam-pressing mechanism and the leather sheet positioning mechanism in FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2 according to the present invention;

FIG. 4 is a top view of the positioning and seam pressing mechanism and the flap positioning mechanism of FIG. 1;

FIG. 5 is an enlarged view taken at B in FIG. 4 according to the present invention;

FIG. 6 is a top cross-sectional view of the positioning and seam-pressing mechanism and the flap-positioning mechanism of FIG. 1 according to the present invention;

fig. 7 is an enlarged view of the present invention at C in fig. 6.

In the figure: 1. a work table; 2. a sewing machine; 3. positioning and seam pressing mechanisms; 31. placing a leather seat; 32. pressing a seam seat; 321. an outer ring; 322. an inner seat; 323. corner strips; 33. a bidirectional slide bar; 34. a spacer ring; 35. a secondary pressure spring; 36. a needle insertion through groove; 37. a limiting head; 38. a corner seat; 39. a through hole; 4. a skin piece position correcting mechanism; 41. a side shaft hole; 42. a wheel groove; 43. a shaft lever; 44. a coupling wheel; 45. caulking grooves; 46. a rack; 47. a U-shaped seat; 48. a shifting push arm; 49. an outer through groove; 410. a tooth surface; 411. an inner tooth socket; 412. and (6) magnetically attracting the 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 obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: a sewing device with deviation rectifying structure for leather production comprises a workbench 1, a sewing machine 2, namely a leather product sewing machine, is fixedly arranged on one side of the top surface of the workbench 1, and is a sewing machine specially used for sewing various leather products, canvas, artificial leather, rubber cloth, coarse linen fabrics and other thick material products for industry, also called a thick material sewing machine, the head of the leather product sewing machine comprises a cloth pricking mechanism, a thread picking mechanism, a thread hooking mechanism, a feeding mechanism and a special device, the form of the cloth pricking mechanism of the leather product sewing machine of the cloth pricking mechanism is basically the same as that of a flat seam sewing machine, and is also a crank connecting rod, only the size of a machine part is larger, the adopted needle point of a machine needle is not a common circle but has a special shape, and the machine needle pierces through the sewing material in a cutting mode, so that the damage of the leather is avoided, the fracture of the machine needle is reduced, and the cutting hole of the needle point with the special shape usually forms a certain angle with the seam, each stitch is drawn tightly and neatly.

The take-up mechanism is mostly the wheel-type take-up mechanism of cam, can satisfy the motion of any law of take-up stalk, and when thick goods such as sewing leather, canvas, the needle line can receive great damage when the eedle impales and withdraws from the seam material, and the requirement of ideal is: when the shuttle point hooks the needle thread loop, the thread picking lever can pause for a longer time correspondingly, after the machine needle is withdrawn from the sewing material, the thread picking lever can rapidly feed a large amount of threads and pull out thread traces, the cam type thread picking mechanism can meet the requirements compared with other thread picking mechanisms, the structure is simple, parts are easy to wear when the sewing speed is higher, and the speed is not suitable to exceed 1500 stitches per minute.

The thread hooking mechanism adopts much thicker thread than that of the common sewing machine in the leather product sewing machine, so that a non-central shuttle-type shuttle with large thread containing quantity is generally adopted, wherein the long shuttle-mouth shuttle is the more used one in the leather product sewing machine, and is characterized in that: when the shuttle cock tip is inserted into the needle thread loop, the thread loop is maintained on the cock tip without expansion until the needle exits the sewing material, obviously, when the needle exits the sewing material, the shuttle cock expands the thread loop, the needle thread passes through the sewing material without obstruction, the damage of the sewing thread can be greatly reduced, and the sewing material with strong sewing firmness or viscosity is more important.

The feeding mechanism has various forms, the sawtooth-shaped feeding tooth for general sewing machine can not effectively convey leather with high hardness, in order to obtain better feeding effect and reduce damage of leather surface layer, the leather product sewing machine usually adopts feeding roller instead of feeding tooth, besides roller feeding, there are also various forms of upper and lower comprehensive feeding, upper and lower and needle comprehensive feeding, etc. they can make sewing material surface not be damaged and overcome multilayer sewing material, some types of leather product sewing machine are equipped with soaking groove for lubricating needle thread, and the top surface of working table 1 is positioned at lower side of sewing machine 2 and is rotatably connected with positioning seam-pressing mechanism 3.

In this embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the positioning stitching mechanism 3 includes a leather placing seat 31, the leather placing seat 31 is rotatably connected to the workbench 1, a stitching seat 32 is disposed on the upper side of the leather placing seat 31, both the leather placing seat 31 and the stitching seat 32 are hexagonal seats adapted to leather sheets, the leather sheets are placed between the leather placing seat 31 and the stitching seat 32 during stitching, corresponding corner seats 38 are welded on the side edges of the surfaces of the stitching seat 32 and the leather placing seat 31, through holes 39 are formed in the surfaces of the corner seats 38, two-way sliding rods 33 are slidably inserted into the two-way through holes 39, and the stitching seat 32 can move up and down by using the leather placing seat 31 as a base point through the two-way sliding rods 33;

a spacer ring 34 is fixedly sleeved in the middle of the surface of the two-way sliding rod 33, secondary compression springs 35 are movably sleeved on the upper side and the lower side of the surface of the two-way sliding rod 33, the two secondary compression springs 35 are symmetrically arranged with the spacer ring 34 as a middle point, two ends of each secondary compression spring 35 are respectively overlapped with the angle seat 38 and the spacer ring 34, the two secondary compression springs 35 normally push the leather placing seat 31 and the seam pressing seat 32 to move back to back, when the seam pressing seat 32 presses downwards, the upper secondary compression spring 35 is firstly compressed, and then the two-way sliding rod 33 is pushed through the spacer ring 34 to compress the lower secondary compression spring 35 and move downwards;

the surface of the seam pressing seat 32 is provided with a needle feeding through groove 36 matched with the sewing machine 2, the needle feeding through groove 36 divides the seam pressing seat 32 into an outer ring 321 and an inner seat 322, the outer ring 321 is fixedly connected with the inner seat 322 through a corner strip 323, the leather seat 31 and the seam pressing seat 32 which are displaced relatively clamp and position two leather sheets to be sewn, and the sewing needle of the sewing machine 2 only needs to be inserted into the needle feeding through groove 36 to be sewn along the edge of the leather sheets.

In this embodiment, as shown in fig. 2, 3, 4, 5, 6 and 7, a limiting head 37 is welded to the top end of the two-way sliding rod 33 to prevent the caulking seat 32 from being separated from the two-way sliding rod 33, so as to ensure the stability of use, and a leather sheet position correcting mechanism 4 matched with the bottom end of the two-way sliding rod 33 and the caulking seat 32 is arranged inside the leather placing seat 31.

In this embodiment, as shown in fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the leather sheet position-rectifying mechanism 4 includes a side shaft hole 41, the side shaft hole 41 is disposed at a side edge inside the leather placing seat 31, and both side ports of the surface of the leather placing seat 31 and the side shaft hole 41 are provided with wheel grooves 42 communicated therewith;

a shaft rod 43 is rotatably inserted into the side shaft hole 41, the two ends of the shaft rod 43 and the wheel grooves 42 on the same side are fixedly sleeved with a coupling wheel 44, an embedding groove 45 is formed in the lower side of the surface of the bidirectional slide bar 33, a rack 46 meshed with the coupling wheel 44 is welded inside the embedding groove 45, and the coupling wheel 44 and the shaft rod 43 are driven to rotate by the rack 46 when the bidirectional slide bar 33 moves downwards in the using process;

the side edge of the surface of the leather placing seat 31 is fixedly connected with a U-shaped seat 47, the U-shaped seat 47 is rotatably connected with a shifting push arm 48, the side edge of the surface of the leather placing seat 31 is provided with an outer through groove 49 communicated with the side shaft hole 41, the inner end of the shifting push arm 48 is positioned in the outer through groove 49 and is provided with a tooth surface 410, the surface of the shaft lever 43 is provided with an inner tooth groove 411 mutually meshed with the tooth surface 410, the rotation of the shaft lever 43 can drive the shifting push arm 48 to swing by taking the U-shaped seat 47 as a base point, a plurality of shifting push arms 48 which swing upwards along with the rotation of the shaft lever 43 at the side edge of the leather placing seat 31 can form a claw-like clamping action to push the leather sheet on the leather placing seat 31 to shift the position until the leather sheet is collected to be corresponding to the position of the leather placing seat 31 by the shifting push arm 48 in a vertical state, magnetic suction blocks 412 which are mutually matched are embedded at the end of the shifting push arm 48 and the side edge of the pressing seam seat 32, and simultaneously the top end of the shifting push arm 48 in the vertical state is attached to the side edge of the pressing seam seat 32, and the magnetic blocks 412 are mutually attracted and drawn to keep the clamping state of the seam pressing seat 32 and the leather placing seat 31.

In this embodiment, as shown in fig. 2, the top surface of the leather placing seat 31 is provided with an edge pressing groove, and the bottom surface of the seam pressing seat 32 is integrally formed with an edge pressing convex seat matched with the edge pressing groove, so that the edge of the hexagonal leather sheet can be pressed out to be sewn, and the sewing and point finding are facilitated.

In this embodiment, as shown in fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the number of the corner seats 38 is twelve, and the twelve corner seats 38 are respectively disposed at the protruding corners of the leather placing seat 31 and the stitching seat 32 by using six as a group, so that compared with single-point limiting, the multi-point synchronous supporting and limiting has more stability, and the stitching seat 32 is guided and displaced more stably by the bidirectional sliding rod 33.

In this embodiment, as shown in fig. 1 and fig. 2, a bearing is embedded at the connection between the shaft lever 43 and the side shaft hole 41, and the bearing can effectively reduce the friction coefficient of the shaft lever 43 during the movement process, and can limit the position and ensure the rotation precision.

In this embodiment, as shown in fig. 6 and 7, the shift arm 48 is made of plastic steel, which has excellent air tightness, water tightness, corrosion resistance and other properties, and is cheap, so that the overall use cost is greatly reduced.

The use method and the advantages of the invention are as follows: when the leather sheet is sewed up by the sewing equipment with the deviation rectifying structure, the working process is as follows:

as shown in figures 1, 2, 3, 4, 5, 6 and 7, firstly, the leather sheet to be sewn is placed between the leather placing seat 31 and the seam pressing seat 32, then the seam pressing seat 32 is pressed downwards by the bidirectional slide rod 33 with the leather placing seat 31 as a base point, when the seam pressing seat 32 is pressed downwards, the upper secondary compression spring 35 is compressed firstly, then the bidirectional slide rod 33 is pushed by the spacer ring 34 to compress the lower secondary compression spring 35 and move downwards, the leather placing seat 31 and the seam pressing seat 32 which are relatively displaced clamp and position the two leather sheets to be sewn, the sewing needle of the sewing machine 2 can be sewn along the edge of the leather sheet only by inserting the sewing needle into the needle through groove 36, and simultaneously, the bidirectional slide rod 33 moves downwards in the process, the connecting wheel 44 and the shaft lever 43 are driven to rotate by the rack 46, the rotation of the shaft lever 43 can drive the shifting and pushing arm 48 to swing with the U-shaped seat 47 as a base point, and the plurality of shifting arms 48 which swing upwards synchronously along with the rotation of the 43 at the side edge of the leather placing seat 31 can form a clamping action similar to a claw leather sheet The leather sheet on the seat 31 is shifted until being collected by the shifting push arm 48 in the vertical state to correspond to the leather placing seat 31, meanwhile, the top end of the shifting push arm 48 in the vertical state is attached to the side edge of the seam pressing seat 32, and the magnetic suction blocks 412 are used for mutually sucking and drawing to realize the holding of the seam pressing seat 32 and the leather placing seat 31 in a clamping state.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a skin piece production is with sewing up equipment with structure of rectifying, includes workstation (1), its characterized in that: one side fixed mounting of workstation (1) top surface has sewing machine (2), and the top surface of workstation (1) is located sewing machine (2) downside and rotates and be connected with location seam pressing mechanism (3).

2. The sewing equipment with the deviation rectifying structure for the production of the leather sheets as claimed in claim 1, wherein: the positioning and seam pressing mechanism (3) comprises a leather placing seat (31), the leather placing seat (31) is rotatably connected to the workbench (1), a seam pressing seat (32) is arranged on the upper side of the leather placing seat (31), corner seats (38) corresponding to each other are welded on the side edges of the surfaces of the seam pressing seat (32) and the leather placing seat (31), through holes (39) are formed in the surface of each corner seat (38), and two-way sliding rods (33) are slidably inserted into the through holes (39);

the middle part of the surface of the bidirectional slide rod (33) is fixedly sleeved with a spacing ring (34), the upper side and the lower side of the surface of the bidirectional slide rod (33) are movably sleeved with secondary compression springs (35), the two secondary compression springs (35) are symmetrically arranged by taking the spacing ring (34) as a middle point, and two ends of each secondary compression spring (35) are respectively lapped with the angle seat (38) and the spacing ring (34);

the surface of the seam pressing seat (32) is provided with a needle feeding through groove (36) matched with the sewing machine (2), the seam pressing seat (32) is divided into an outer ring (321) and an inner seat (322) by the needle feeding through groove (36), and the outer ring (321) is fixedly connected with the inner seat (322) through an angle bar (323).

3. The sewing equipment with the deviation rectifying structure for the production of the leather sheets as claimed in claim 2, wherein: the top welding of two-way slide bar (33) has stopper (37), the inside of putting leather seat (31) is provided with the bottom with two-way slide bar (33) and presses seam seat (32) matched with leather sheet to rectify position mechanism (4).

4. The sewing equipment with deviation rectifying structure for leather sheet production according to claim 3, characterized in that: the leather sheet position rectifying mechanism (4) comprises a side position shaft hole (41), the side position shaft hole (41) is formed in the side edge of the inner portion of the leather placing seat (31), and wheel grooves (42) communicated with the surface of the leather placing seat (31) and the end openings of the two sides of the side position shaft hole (41) are formed in the surface of the leather placing seat;

a shaft lever (43) is rotatably inserted into the side shaft hole (41), the two ends of the shaft lever (43) and the wheel grooves (42) on the same side are fixedly sleeved with a coupling wheel (44), an embedded groove (45) is formed in the lower side of the surface of the bidirectional slide bar (33), and a rack (46) meshed with the coupling wheel (44) is welded in the embedded groove (45);

put side fixedly connected with U-shaped seat (47) on leather seat (31) surface, and rotate on U-shaped seat (47) and be connected with and dial position pushing arm (48), put side department on leather seat (31) surface and offer outer logical groove (49) with limit position shaft hole (41) intercommunication, dial the inner of position pushing arm (48) and be located outer logical groove (49) and seted up flank of tooth (410), the interior tooth's socket (411) with flank of tooth (410) intermeshing is seted up on the surface of axostylus axostyle (43), the end department of dialling position pushing arm (48) and the side of caulking seat (32) all set up mutually supported magnetism and inhale piece (412).

5. The sewing equipment with the deviation rectifying structure for the production of the leather sheets as claimed in claim 2, wherein: the top surface of the leather placing seat (31) is provided with a blank pressing groove, and the bottom surface of the seam pressing seat (32) is integrally formed with a blank pressing convex seat matched with the blank pressing groove.

6. The sewing equipment with the deviation rectifying structure for the production of the leather sheets as claimed in claim 2, wherein: the number of the corner seats (38) is twelve, and the twelve corner seats (38) are respectively arranged at the protruding corners of the leather placing seat (31) and the seam pressing seat (32) in a group of six.

7. The sewing equipment with deviation rectifying structure for leather sheet production according to claim 4, characterized in that: and a bearing is embedded at the joint of the shaft lever (43) and the side shaft hole (41).

8. The sewing equipment with deviation rectifying structure for leather sheet production according to claim 4, characterized in that: the shifting push arm (48) is made of plastic steel material.