CN212316405U

CN212316405U - Pocket feeding machine

Info

Publication number: CN212316405U
Application number: CN202020583219.XU
Authority: CN
Inventors: 蒋国庆; 蒋德征
Original assignee: Beijing Jinlan Garment Co Ltd
Current assignee: Beijing Jinlan Garment Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-01-08
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a pocket feeding machine, which comprises a frame, a workbench and a sewing machine; the frame is fixed on the ground; the upper surface of the workbench is flat and is horizontally fixed on the rack; the sewing machine is fixed on the workbench, a needle head is arranged on the sewing machine, the needle head is arranged close to the workbench, and a sewing thread for sewing the pocket and the clothes is arranged in the needle head; also comprises an auxiliary suture component; the auxiliary sewing component comprises a bottom plate and a cover plate; the bottom plate is arranged on the workbench, and a first sewing opening is formed in the bottom plate; the cover plate is matched with the bottom plate, and a second sewing opening corresponding to the first sewing opening is formed in the cover plate; the bottom plate and the cover plate are in clamping fit. The utility model has the advantage of more convenient sewing pocket.

Description

Pocket feeding machine

Technical Field

The utility model belongs to the technical field of clothing sewing's technique and specifically relates to a pocket machine goes up.

Background

At present, when the clothes are designed, a pocket is generally sewn on the clothes, the pocket is both attractive in appearance and practical in sewing, the pocket can be used for containing and carrying some articles, the practicability of the clothes is enhanced, the clothes can be decorated, and the clothes are more attractive in appearance.

When the pocket is sewn on the existing clothes, the positioning property is generally manually carved, then a worker fixes cloth for manufacturing the pocket by hands, the pocket and the clothes synchronously slide on the workbench 2 of the sewing machine 3, and the needle 30 with a sewing thread on the sewing machine 3 sews the pocket on the clothes according to the positioning thread.

The above prior art solutions have the following drawbacks: when the positioning line is manually drawn, the positioning line can be influenced in various aspects, such as the emotion of a person or sensory errors of different workers, so that operation errors are easy to generate, and the drawn line can be slightly inclined; in addition, in the sewing process, because the fabric is soft, when the pocket and the clothes are sewn by manual pressing, the pocket and the clothes need to be pressed to move synchronously on the workbench 2 of the sewing machine 3, so that the needle head 30 of the sewing machine 2 is sewn according to the position of the positioning line, and the clothes and the pocket are easy to wrinkle in the sliding process and are not pressed smoothly enough; the pocket and the clothes are easy to be dislocated in the process of synchronous sliding on the workbench, so that the pocket cannot be well sewn with the clothes according to a positioning line; the sewing quality of the pocket is poor due to the combination of the factors, the operation difficulty in sewing the pocket is increased, and the sewing of the pocket on the clothes is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pocket feeding machine which has the advantage of more convenient pocket sewing.

The above object of the present invention is achieved by the following technical solutions:

a pocket feeding machine comprises a frame, a workbench and a sewing machine; the frame is fixed on the ground; the upper surface of the workbench is flat and is horizontally fixed on the rack; the sewing machine is fixed on the workbench, a needle head is arranged on the sewing machine, the needle head is arranged close to the workbench, and a sewing thread for sewing the pocket and the clothes is arranged in the needle head; also comprises an auxiliary suture component; the auxiliary sewing component comprises a bottom plate and a cover plate; the bottom plate is arranged on the workbench, and a first sewing opening is formed in the bottom plate; the cover plate is matched with the bottom plate, and a second sewing opening corresponding to the first sewing opening is formed in the cover plate; the bottom plate and the cover plate are in clamping fit.

By adopting the technical scheme, when the pocket and the clothes are sewn, the clothes and the pocket are placed on the bottom plate, the cover plate is covered on the bottom plate, the clothes and the pocket are clamped by the bottom plate and the cover plate, and then the clothes and the pocket are sewn by using the sewing machine along a track formed by the first sewing opening and the second sewing opening; when the clothes and the pocket are sewed, the mutually matched bottom plate and cover plate are adopted to tightly press the clothes and the pocket, so that the possibility of dislocation when the clothes and the pocket are manually and directly pressed is reduced; the sewing machine sews according to the sewing track formed by the first sewing opening and the second sewing opening, thereby reducing the error of manual marking; the sewing of the clothes and the pocket is more convenient.

The present invention may be further configured in a preferred embodiment as: the auxiliary sewing assembly further comprises a sliding support; a first air cylinder and a second air cylinder which are used for driving the sliding support to move along the X-axis direction and the Y-axis direction are arranged on the rack; the first cylinder is fixedly connected with the frame; the second cylinder is fixedly connected with the output end of the first cylinder, and the axis of the second cylinder is vertical to the axis of the first cylinder; the cover plate and the bottom plate are arranged on the sliding support; and a fourth cylinder for pushing the cover plate to slide towards the direction of the bottom plate is arranged on the sliding support.

By adopting the technical scheme, the first air cylinder and the second air cylinder drive the sliding support to drive the bottom plate and the cover plate to move along the directions of the X axis and the Y axis, so that the sewing machine can sew according to a sewing track formed by the first sewing opening and the second sewing opening; the fourth cylinder can control the lifting of the cover plate; thereby the sewing of the pocket is more convenient.

The present invention may be further configured in a preferred embodiment as: a fixed block is fixedly connected above the bottom plate on the sliding support; the fourth cylinder is arranged on the fixed block; the output end of the fourth cylinder is fixedly connected with the fixed block; a sliding block is arranged on the cylinder body of the fourth cylinder, and two ends of the sliding block are respectively fixedly connected with the cylinder body of the fourth cylinder; one side of the cover plate is connected with the sliding block.

Through adopting above-mentioned technical scheme, make things convenient for being connected of fourth cylinder and apron, make the lift that the fourth cylinder can drive the apron.

The present invention may be further configured in a preferred embodiment as: the cover plate comprises a pressing plate, a side pressing plate, a connecting frame and an elastic sheet; the pressing plate is elastically connected with the sliding block; the pressing plate is matched with the plate surface of the bottom plate positioned at the inner side of the first sewing opening; the side pressing plate is horizontally arranged on the periphery of the pressing plate, the side pressing plate is fixedly connected with the sliding support, and the pressing plate and the side pressing plate are arranged in a split mode; the connecting frame is arranged between the side pressing plate and the pressing plate; a second seam is formed between the connecting frame and the pressing plate; the second sewing opening corresponds to the first sewing opening on the bottom plate; the elastic pieces are multiple and arranged between the side pressing plates and the connecting frame; the two ends of the elastic sheet are respectively connected with the elastic sheet and the side pressing plate.

By adopting the technical scheme, when the cover plate presses against clothes and pockets, the pressing plate presses the pockets and the clothes positioned on the inner side of the first sewing opening against the bottom plate; the connecting frame tightly supports the part of the pocket positioned at the outer side of the first sewing opening against the clothes; the fourth cylinder continues to drive the cover plate to slide downwards, the pressing plate is elastically connected with the sliding block, and the pocket, the clothes and the bottom plate are pressed tightly by the pressing plate all the time; the side pressing plate continues to move downwards to enable the part of the clothes, which is positioned at the outer side of the pocket, to be tightly abutted against the bottom plate; thereby the clothes and the pocket are pressed and pressed.

The present invention may be further configured in a preferred embodiment as: the sliding block is provided with an L-shaped connecting block, and an L-shaped corner of the connecting block faces the fixed block; one end of the connecting block is fixedly connected with the sliding block; the cover plate further comprises a fixing plate; one side of the fixed plate is provided with a Z-shaped elastic folded plate which is fixedly connected with one end of the connecting block, which is far away from the sliding block; the pressing plate is arranged below the fixing plate and attached to the surface of the fixing plate, and the pressing plate and the fixing plate are fixed through bolts.

Through adopting above-mentioned technical scheme, when the pressing plate supported the pocket, the fourth cylinder continued the drive apron and moved down, and the deformation took place for the elasticity folded plate this moment, and the pressing plate compresses tightly pocket, clothes and bottom plate all the time, and the side pressure board can continue to move down and support tightly with the bottom plate with the part that the clothes was located the pocket outside.

The present invention may be further configured in a preferred embodiment as: a plurality of first threaded holes are formed in the side pressure plate, and a plurality of second threaded holes are formed in the connecting frame; two ends of the elastic sheet respectively correspond to the first threaded hole in the side pressing plate and the second threaded hole in the connecting frame; the elastic sheet is detachably connected with the side pressing plate and the connecting frame.

By adopting the technical scheme, the two sides of the elastic piece are detachably connected with the side pressing plate and the connecting frame, the length of the elastic part of the elastic piece between the side pressing plate and the connecting frame can be changed by changing the connecting position of the elasticity between the side pressing plate and the connecting frame, so that the elastic piece can be matched with clothes and pockets with different thicknesses, the side pressing plate can always support the part of the clothes, which is positioned outside the pocket, tightly, and the connecting frame can always support the part of the pocket, which is positioned outside the first sewing opening, tightly.

The present invention may be further configured in a preferred embodiment as: one side of the elastic sheet facing the side pressing plate is provided with a strip-shaped hole, and the strip-shaped hole extends along the length direction of the elastic sheet; and a limit screw is arranged in the strip-shaped hole, the large end of the limit screw is larger than the width of the strip-shaped hole, and the limit screw penetrates through the strip-shaped hole to be in threaded connection with a first threaded hole in the side pressure plate.

Through adopting above-mentioned technical scheme, make things convenient for the dismouting of flexure strip on the side pressure board.

The present invention may be further configured in a preferred embodiment as: one end of the elastic sheet, which is far away from the side pressure plate, is provided with a limiting hole, and a limit is arranged in the limiting hole; the limiting piece penetrates through the limiting hole and is in threaded connection with the second threaded hole; the elastic piece is in running fit with the limiting piece.

Through adopting above-mentioned technical scheme, when the length to the elastic sheet at the elastic part between side pressure plate and connection frame, only need twist off stop screw, then make the elastic sheet rotate suitable position around the locating part, then twist on stop screw, make the regulation of elastic sheet more convenient.

The present invention may be further configured in a preferred embodiment as: the limiting piece comprises a shaft rod, a threaded part and a limiting ring; the periphery of the shaft lever is smooth, and the outer diameter of the shaft lever is larger than the diameter of the second threaded hole and is matched with the diameter of the limiting hole; the elastic sheet can freely rotate around the shaft rod; the thread part is arranged at one end of the shaft lever and is coaxial with the shaft lever; the outer diameter of the threaded part is smaller than the diameter of the shaft rod; the threaded part is in threaded connection with the second threaded hole; the limiting ring is arranged at one end of the shaft lever, which is far away from the threaded part, and the outer diameter of the limiting ring is larger than the diameter of the limiting hole; when the limiting piece penetrates through the limiting hole and is in threaded connection with the second threaded hole, the limiting ring is abutted against the elastic piece, and the elastic piece can freely rotate around the limiting piece.

Through adopting above-mentioned technical scheme, when the locating part passed elastic sheet and second screw hole spiro union, the elastic sheet can rotate around the pivot pole, and the spacing ring can restrict the position of elastic sheet on connecting the frame, when adjusting the elastic sheet, need not dismantle the locating part, makes things convenient for the regulation of elastic sheet.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the auxiliary sewing component is arranged, so that the pocket can be sewn on the clothes more conveniently;

2. through setting up the locating part, it is more convenient to make the regulation of flexure strip on side pressure board and connection frame.

Drawings

FIG. 1 is a schematic structural diagram of a top tucking machine in the background art;

FIG. 2 is a schematic structural view of a pocket feeding machine in the embodiment;

FIG. 3 is a schematic view of the structure of the bottom plate and the cover plate;

fig. 4 is a cross-sectional view showing the fitting of the position-limiting member with the elastic piece and the connecting frame.

In the figure, 1, a frame; 10. a first cylinder; 11. a second cylinder; 12. a third cylinder; 2. a work table; 3. a sewing machine; 30. a needle head; 4. an auxiliary suturing assembly; 40. a slipping bracket; 400. a fixed block; 401. a fourth cylinder; 402. a sliding block; 403. connecting blocks; 41. a base plate; 410. a first seam; 42. a conveying plate; 43. a cover plate; 430. a fixing plate; 4300. an elastic folded plate; 431. a pressing plate; 432. side pressing plates; 4320. a first threaded hole; 433. connecting the frame; 4330. a second threaded hole; 434. an elastic sheet; 4340. a strip-shaped hole; 4341. a limiting hole; 435. a second seam; 5. a limit screw; 6. a limiting member; 60. a shaft lever; 61. a threaded portion; 62. a limit ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, the pocket feeding machine disclosed by the utility model comprises a frame 1, a workbench 2, a sewing machine 3 and an auxiliary sewing component 4; the frame 1 is fixed on the ground; the upper surface of the workbench 2 is flat and is horizontally fixed on the frame 1; the sewing machine 3 is fixed on the workbench 2, a needle head 30 is arranged on the sewing machine 3, the needle head 30 is arranged close to the workbench 2, and a sewing thread for sewing a pocket and clothes is arranged in the needle head 30; the auxiliary sewing assembly 4 comprises a sliding bracket 40, a bottom plate 41, a conveying plate 42 and a cover plate 43; the sliding support 40 is arranged on the workbench 2 and is in sliding fit with the workbench 2; the sliding support 40 can adopt any driving device which can drive the sliding support 40 to move along the X axis and the Y axis simultaneously, for example, a double-cylinder pushing mode can be adopted, and a double-screw pushing mode can also be adopted; in the embodiment, a double-cylinder pushing mode is adopted; a first cylinder 10 is fixedly connected to the frame 1, and the axis of the first cylinder 10 is parallel to the length direction of the workbench 2; a second cylinder 11 is fixedly connected to the output end of the first cylinder 10, and the axis of the second cylinder 11 is perpendicular to the axis of the first cylinder 10; the sliding support 40 is fixedly connected with the output end of the second cylinder 11.

Referring to fig. 2 and 3, the bottom plate 41 is horizontally disposed on the worktable 2 and slidably engaged with the worktable 2; one side of the bottom plate 41 is fixedly connected with the sliding support 40; a first sewing opening 410 is formed on the bottom plate 41, and the first sewing opening 410 can be formed according to the size, shape and the like of a pocket; a third cylinder 12 is arranged above the bottom plate 41 on the frame 1, and the axis of the third cylinder 12 is parallel to the plate surface of the bottom plate 41; the conveying plate 42 is horizontally arranged above the bottom plate 41, and the plate surface of the conveying plate is larger than the plate surface of the bottom plate 41 positioned at the inner side of the first sewing opening 410; one side of the conveying plate 42 is fixedly connected with the output end of the third cylinder 12; when the third cylinder 12 drives the transfer plate 42 to above the base plate 41, the bottom surface of the transfer plate 42 comes into contact with the upper surface of the clothes placed on the base plate 41.

Referring to fig. 2, fixed blocks 400 are respectively and fixedly connected to two sides of the sliding support 40 above the bottom plate 41, and a fourth cylinder 401 is respectively arranged on each fixed block 400; the output end of the fourth cylinder 401 is perpendicular to the table surface of the workbench 2 and is fixedly connected with the fixed block 400; in the embodiment, the output end of the fourth cylinder 401 is in threaded connection with the fixed block 400; a sliding block 402 is arranged on the cylinder body of the fourth cylinder 400, and two ends of the sliding block 402 are respectively fixedly connected with the cylinder body of the fourth cylinder 401; the cover plate 43 is horizontally arranged, one side of the cover plate is fixedly connected with the sliding block 402, and the cover plate 43 is matched with the bottom plate 41.

Referring to fig. 2, a connection block 403 is provided on the sliding block 402; one end of the connecting block 403 is fixedly connected with the sliding block 402, and the other end is fixedly connected with the cover plate 43; the cover plate 43 includes a fixing plate 430, a pressing plate 431, a side pressing plate 432, a connecting frame 433, and an elastic sheet 434; the fixing plate 430 is horizontally arranged, one side of the fixing plate 430 is provided with a Z-shaped elastic folded plate 4300, and the elastic folded plate 4300 is fixedly connected with the connecting block 403 through bolts; the pressing plate 431 is horizontally arranged below the fixing plate 430 and is attached to the plate surface of the fixing plate 430, and the pressing plate 431 and the fixing plate 430 are fixed through bolts; the pressing plate 431 is matched with the plate surface of the bottom plate 41 positioned at the inner side of the first sewing opening 410; the side pressing plate 432 is horizontally arranged on the periphery of the pressing plate 431, the side pressing plate 432 is U-shaped, the U-shaped opening faces the sliding support 40, and the pressing plate 431 and the side pressing plate 432 are arranged in a split mode; the side pressure plate 432 and the sliding support 40 are fixed through bolts; the connecting frame 433 is horizontally arranged between the side pressing plate 432 and the pressing plate 431; a second sewing port 435 is formed between the connection frame 433 and the pressing plate 431; the second sewing opening 435 corresponds to the first sewing opening 410 on the bottom plate 41; a plurality of elastic pieces 434 are arranged between the side pressing plates 432 and the connecting frame 433; the lower surface of the elastic sheet 434 is attached to the upper surfaces of the side pressure plates 432 and the connecting frame 433; two ends of the elastic sheet 434 are detachably connected with the side pressure plate 432 and the connecting frame 433 respectively.

Referring to fig. 3, the side pressing plate 432 is provided with a plurality of first threaded holes 4320, one side of the elastic sheet 434 facing the side pressing plate 432 is provided with a strip-shaped hole 4340, and the strip-shaped hole 4340 extends along the length direction of the elastic sheet 434; a limit screw 5 is arranged in the strip-shaped hole 4340, the large end of the limit screw 5 is larger than the width of the strip-shaped hole 4340, and the limit screw 5 penetrates through the strip-shaped hole 4340 and is in threaded connection with a first threaded hole 4320 on the side pressing plate 432; the big end of the limit screw 5 is tightly propped against the elastic sheet 434; one end of the elastic sheet 434, which is away from the side pressure plate 432, is provided with a limiting hole 4341, the connecting frame 433 is provided with a second threaded hole 4330, the limiting hole 4341 is provided with a limiting piece 6, and the limiting piece 6 penetrates through the limiting hole 4341 and is screwed with the second threaded hole 4330.

Referring to fig. 3 and 4, the diameter of the limiting hole 4341 is greater than that of the second screw hole 4330; the limiting member 6 comprises a shaft rod 60, a threaded part 61 and a limiting ring 62; the periphery of the shaft rod 60 is smooth, and the outer diameter of the shaft rod 60 is larger than the diameter of the second threaded hole 4330 and is matched with the diameter of the limiting hole 4341; the elastic piece 434 can rotate freely around the shaft 60; the thread part 61 is arranged at one end of the shaft 60 and is coaxial with the shaft 60; the outer diameter of the thread part 61 is smaller than the diameter of the shaft 60 and is integrally cast with the shaft 60; the threaded part 61 is screwed with the second threaded hole 4330; the limiting ring 62 is arranged at one end of the shaft rod 60, which is far away from the threaded part 61, and is integrally cast and molded with the shaft rod 62, and the outer diameter of the limiting ring 62 is larger than the diameter of the limiting hole 4341; when the limiting member 6 passes through the limiting hole 4341 and is screwed with the second threaded hole 4330, the limiting ring 62 abuts against the elastic sheet 434, and the elastic sheet 434 can freely rotate around the limiting member 6.

The implementation principle of the embodiment is as follows: when sewing the pocket and the clothes, firstly starting the fourth air cylinder 401 to drive the cover plate 43 to move upwards, then putting the clothes on the bottom plate 41, then putting the pocket on the conveying plate 42, starting the third air cylinder 12, and conveying the pocket to the upper part of the clothes by the conveying plate 42, wherein the pocket is in contact with the clothes because the pocket is slightly larger than the conveying plate 42, and then starting the third air cylinder 12 to drive the conveying plate 42 to withdraw from the upper part of the bottom plate 41, and the pocket is remained on the upper surface of the clothes under the action of friction force; then, the fourth cylinder 401 is started, the cover plate 43 descends to press the clothes and the pocket together; when the cover plate 43 presses the clothes and the pocket, the pressing plate 431 tightly presses the pocket and the clothes positioned at the inner side of the first sewing opening 410 against the bottom plate 41; the connecting frame 433 tightly presses the part of the pocket outside the first sewing opening 410 against the clothes; the fourth cylinder 401 continues to drive the cover plate 43 to slide downwards, the elastic folding plate 4300 and the elastic sheet 434 deform, and the side pressing plate 432 continues to move downwards to enable the part of the clothes, which is positioned outside the pocket, to be tightly abutted to the bottom plate 41; thereby the clothes and the pocket are pressed and pressed; in addition, two sides of the elastic piece 434 are detachably connected with the side pressing plate 432 and the connecting frame 433, and the length of the elastic part of the elastic piece 434 between the side pressing plate 432 and the connecting frame 433 can be changed by changing the connecting position of the elastic piece 434 between the side pressing plate 432 and the connecting frame 433, so that the elastic piece can be adapted to clothes and pockets with different thicknesses, the side pressing plate 432 can always press against the part of the clothes positioned on the outer side of the pocket, and the connecting frame 433 can always press against the part of the pocket positioned on the outer side of the first sewing opening 41; after clamping the clothes and the pocket, starting the first air cylinder 10 and the second air cylinder 11, driving the sliding support 40 to slide along the X axis and the Y axis by the first air cylinder 10 and the second air cylinder 11, so that the sewing machine 3 can sew the clothes and the pocket along the sewing track formed by the first sewing opening 41 and the second sewing opening 435; after sewing, the fourth air cylinder 401 is started to drive the cover plate 43 to move upwards, the clothes are taken out, then the first air cylinder 10 and the second air cylinder 11 are driven to reset the sliding support 40, and the next sewing is continued; when the clothes and the pocket are sewed, the bottom plate 41 and the cover plate 43 which are matched with each other are adopted to tightly press the clothes and the pocket, so that the possibility of dislocation when the clothes and the pocket are manually pressed is reduced; the sewing machine 3 sews according to the sewing track formed by the first sewing opening 41 and the second sewing opening 435, which reduces the error of artificial marking; in conclusion, the sewing of the clothes and the pocket is more convenient.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A pocket feeding machine comprises a frame (1), a workbench (2) and a sewing machine (3); the frame (1) is fixed on the ground; the upper surface of the workbench (2) is flat and is horizontally fixed on the rack (1); the sewing machine (3) is fixed on the workbench (2), a needle head (30) is arranged on the sewing machine (3), the needle head (30) is arranged close to the workbench (2), and a sewing thread for sewing a pocket and clothes is arranged in the needle head (30); the method is characterized in that: also comprises an auxiliary stitching component (4); the auxiliary sewing component (4) comprises a bottom plate (41) and a cover plate (43); the bottom plate (41) is arranged on the workbench (2), and a first sewing opening (410) is formed in the bottom plate (41); the cover plate (43) is matched with the bottom plate (41), and a second sewing opening (435) corresponding to the first sewing opening (410) is formed in the cover plate (43); the base plate (41) and the cover plate (43) are in clamping fit.

2. A pocket machine as defined in claim 1, wherein: the auxiliary sewing component (4) also comprises a sliding bracket (40); a first air cylinder (10) and a second air cylinder (11) which are used for driving the sliding support (40) to move along the X-axis direction and the Y-axis direction are arranged on the rack (1); the first air cylinder (10) is fixedly connected with the frame (1); the second cylinder (11) is fixedly connected with the output end of the first cylinder (10), and the axis of the second cylinder (11) is vertical to the axis of the first cylinder (10); the cover plate (43) and the bottom plate (41) are arranged on the sliding support (40); the sliding support (40) is provided with a fourth cylinder (401) which pushes the cover plate (43) to slide towards the direction of the bottom plate (41).

3. A pocket machine as defined in claim 2, wherein: a fixed block (400) is fixedly connected above the bottom plate (41) on the sliding support (40); the fourth air cylinder (401) is arranged on the fixed block (400); the output end of the fourth cylinder (401) is fixedly connected with the fixed block (400); a sliding block (402) is arranged on the cylinder body of the fourth cylinder (401), and two ends of the sliding block (402) are respectively fixedly connected with the cylinder body of the fourth cylinder (401); one side of the cover plate (43) is connected with the sliding block (402).

4. A pocket machine as defined in claim 3, wherein: the cover plate (43) comprises a pressing plate (431), a side pressing plate (432), a connecting frame (433) and an elastic sheet (434); the pressing plate (431) is elastically connected with the sliding block (402); the pressing plate (431) is matched with the plate surface of the bottom plate (41) which is positioned at the inner side of the first sewing opening (410); the side pressing plate (432) is horizontally arranged on the periphery of the pressing plate (431), the side pressing plate (432) is fixedly connected with the sliding support (40), and the pressing plate (431) and the side pressing plate (432) are arranged in a split mode; the connecting frame (433) is arranged between the side pressing plate (432) and the pressing plate (431); a second seam (435) is formed between the connecting frame (433) and the pressing plate (431); the second seam opening (435) corresponds to the first seam opening (410) on the bottom plate (41); a plurality of elastic pieces (434) are arranged between the side pressure plate (432) and the connecting frame (433); both ends of the elastic sheet (434) are respectively connected with the elastic sheet (434) and the side pressure plate (432).

5. A pocket machine as defined in claim 4, wherein: an L-shaped connecting block (403) is arranged on the sliding block (402), and the L-shaped corner of the connecting block (403) faces the fixing block (400); one end of the connecting block (403) is fixedly connected with the sliding block (402); the cover plate (43) further comprises a fixing plate (430); one side of the fixing plate (430) is provided with a Z-shaped elastic folded plate (4300), and the elastic folded plate (4300) is fixedly connected with one end of the connecting block (403) departing from the sliding block (402); the pressing plate (431) is arranged below the fixing plate (430) and is attached to the surface of the fixing plate (430), and the pressing plate (431) and the fixing plate (430) are fixed through bolts.

6. A pocket machine as defined in claim 4, wherein: a plurality of first threaded holes (4320) are formed in the side pressure plate (432), and a plurality of second threaded holes (4330) are formed in the connecting frame (433); two ends of the elastic sheet (434) respectively correspond to a first threaded hole (4320) in the side pressure plate (432) and a second threaded hole (4330) in the connecting frame (433); the elastic sheet (434) is detachably connected with the side pressure plate (432) and the connecting frame (433).

7. A pocket machine as defined in claim 6, wherein: one side of the elastic sheet (434) facing the side pressing plate (432) is provided with a strip-shaped hole (4340), and the strip-shaped hole (4340) extends along the length direction of the elastic sheet (434); the limiting screw (5) is arranged in the strip-shaped hole (4340), the large end of the limiting screw (5) is larger than the width of the strip-shaped hole (4340), and the limiting screw (5) penetrates through the strip-shaped hole (4340) to be in threaded connection with the first threaded hole (4320) in the side pressure plate (432).

8. A pocket machine as defined in claim 7, wherein: one end of the elastic sheet (434) departing from the side pressure plate (432) is provided with a limiting hole (4341), and the limiting hole (4341) is internally provided with a limiting part; the limiting piece (6) penetrates through the limiting hole (4341) and is in threaded connection with the second threaded hole (4330); the elastic piece (434) is in running fit with the limiting piece (6).

9. A pocket machine as defined in claim 7, wherein: the limiting piece (6) comprises a shaft rod (60), a thread part (61) and a limiting ring (62); the periphery of the shaft rod (60) is smooth, and the outer diameter of the shaft rod (60) is larger than the diameter of the second threaded hole (4330) and is matched with the diameter of the limiting hole (4341); the elastic piece (434) can freely rotate around the shaft rod (60); the thread part (61) is arranged at one end of the shaft lever (60) and is coaxial with the shaft lever (60); the outer diameter of the thread part (61) is smaller than the diameter of the shaft rod (60); the threaded part (61) is in threaded connection with the second threaded hole (4330); the limiting ring (62) is arranged at one end of the shaft rod (60) departing from the threaded part (61), and the outer diameter of the limiting ring (62) is larger than the diameter of the limiting hole (4341); when the limiting piece (6) penetrates through the limiting hole (4341) and is in threaded connection with the second threaded hole (4330), the limiting ring (62) is abutted against the elastic sheet (434), and the elastic sheet (434) can freely rotate around the limiting piece (6).