CN219195339U - Bag mouth shaping device of cloth bag opening and folding machine - Google Patents

Abstract

The utility model relates to a pocket mouth shaping device of a cloth bag opening and folding machine, which comprises a workbench, a material fixing part arranged in the workbench, a pressing and opening part arranged above the workbench and a flanging part arranged below the workbench, wherein the pressing and opening part is provided with a pressing part for pressing the short side of the pocket mouth, the material fixing part is provided with a shovel part for folding the short flanging of the pocket mouth and a shovel hole for the pressing part to pass through; the flanging component is provided with a lifting base and a poking push plate arranged on the base. The utility model provides a sack setting device pushes down and struts the mould and be an organic whole, and easy dismounting changes, inserts and presses the part and pushes down and strut the mould and independently work each other, and the short hem of pocket is respectively shaped with long hem, and each other does not influence when the hem, has reduced the deformation of cloth on the whole, holds in the palm the flitch and stir the influence of push pedal mutually noninterfere when the hem, effectively avoids the hem to kick-back, and the yield is high, and the sack size scope of simultaneous processing selection is bigger, and the suitability is good.

Description

Bag mouth shaping device of cloth bag opening and folding machine

Technical Field

The application relates to the technical field of clothing pocket opening processing, in particular to a pocket opening shaping device of a cloth pocket opening and folding machine.

Background

The pocket opening and folding step is a step of pocket forming, generally, the pocket opening and folding mechanism is utilized to stir the folded edges of the pocket opening to the periphery, and finally the folded edges are shaped, but the current automatic folding equipment is not mature, besides the structure is complex, the notch can not well adapt to the pocket opening requirements of different sizes, and interference phenomenon exists during folding, so that the yield is affected.

The applicant provides Chinese patent application with an authorized bulletin number of CN212955653U aiming at the problems of limited size of a processing bag opening, interference of a flanging component and the like, and discloses an improved structure of an automatic bag folding device for cloth bag opening.

Disclosure of Invention

In order to solve the technical problem, the application provides a sack setting device of cloth bag opening and folding machine, it has and pushes down and struts the mould and change conveniently, is applicable to the sack of multiple type size, and does not receive the interference completely between the hem part, and the hem design is stable, advantage that the yield is high.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a sack setting device of bag machine is folded to cloth opening, includes the workstation, sets up the stationary ladle spare in the workstation, sets up the push down of workstation top and struts the part and set up the hem part in the workstation below, wherein:

the push-down opening member includes: the lower pressing and expanding die is used for driving a first driving piece which is used for driving the lower pressing and expanding die to ascend and descend, and an inserting and pressing component which is used for inserting and pressing the short sides of the bag openings, wherein the inserting and pressing component comprises a lower inserting piece and a second driving piece which is used for driving the lower inserting piece to ascend and descend;

the material fixing component comprises a notch structure, a frame pressing component, a material supporting component and a shovel piece component, wherein the frame pressing component is arranged above the notch structure and used for pressing and holding cloth, the material supporting component is arranged below the length direction of the notch structure and used for supporting a long hem of a bag opening, the shovel piece component is arranged below the width direction of the notch structure and used for folding a short hem of the bag opening, the shovel piece component comprises a short shovel piece and a third adjusting structure used for driving the short shovel piece to move in a telescopic manner, and the short shovel piece is provided with a shovel piece hole used for allowing a lower inserting piece to pass through;

the flanging component comprises a base arranged in a lifting manner, a pair of poking pushing plates arranged on the base, and a sixth driving piece for driving the poking pushing plates to transversely move in the horizontal direction.

The technical scheme is realized, the downward-pressing and stretching die is an integral piece, is fixed through the bottom bolt, is convenient to replace, and can select corresponding dies for different sizes of bag openings; the inserting and pressing component and the pushing and stretching die work independently, the short folding edge and the long folding edge of the pocket are shaped respectively, the short folding edge and the long folding edge are not affected each other during folding, the short edge is prevented from being interfered by the short shovel piece during final folding, the long folding edge effect is affected, the instability caused by synchronous folding is improved, the folding shaping effect is improved, and folding lines are smoother.

As one preferable scheme of the application, the inserting and pressing component further comprises a spacing adjusting piece for adjusting the spacing between the two lower inserting sheets.

The technical scheme is realized, the length selection range of the die is larger, and the applicability is stronger.

As one of the preferred schemes of this application, push down and prop up the part length direction outside and all be equipped with supplementary preforming, supplementary preforming is last preforming and lower preforming that the ladder set up including an organic whole from top to bottom.

According to the technical scheme, the lower pressing piece can press and hold the edge of the bag opening, and cloth displacement caused by external force during edge folding is further prevented.

As one of the preferred schemes of this application, push down and strut the part and still including being used for stabilizing push down and strut the guide part that the mould goes up and down, guide part is including vertical slide rail that sets up in push down and strut the part and install on push down and strut the part with slide block that the slide rail matches.

According to the technical scheme, the elastic mounting seat is more stable to lift, and deflection caused by gaps of the guide posts when the pushing-down and expanding die is stressed is avoided.

As one preferable mode of the present application, a tension spring is provided between the push-down stretching die and the first driving member.

As one preferable aspect of the present application, the third adjusting structure includes: the third adjusting driving piece and the third adjusting rod are movably hinged between two sections, one end of the third adjusting rod is movably hinged with the driving rod of the third adjusting driving piece, and the other end of the third adjusting rod is movably hinged with the short shovel piece.

As one preferable scheme of the application, the frame pressing component comprises an upper frame pressing part and a third driving part for driving the upper frame pressing part to lift in the vertical direction.

As one preferable mode of the application, the frame pressing component further comprises a fourth driving piece and a frame pressing limiting block, wherein the fourth driving piece and the frame pressing limiting block are used for limiting the upper frame pressing lower pressure height.

According to the technical scheme, when the bag opening is folded, the upper pressing frame lightly presses the cloth again, the cloth displacement preventing effect is achieved, excessive pressure is not caused to the first limiting piece and the second limiting piece, after the folding is completed, the limiting pieces are evacuated, the fourth driving piece exits to limit, the upper pressing frame is immediately pressed, the folding edge is reinforced in pressure, the folding edge is prevented from being deformed, and an additional material fixing device is not required to be arranged.

As one of the preferred schemes of this application, hold in the palm the material part and hold in the palm the flitch including relative setting, hold in the palm the equal interval in one side that the flitch is close to each other and be provided with the support material tooth, be equipped with the opening that supplies the support material tooth to pass through on the corresponding push pedal of stirring.

According to the technical scheme, the material supporting plate and the poking pushing plate are not interfered with each other to influence when the folding edge is formed, the folding edge rebound is effectively avoided, and meanwhile, the bag mouth processing with smaller width size can be adapted.

As one of the preferred schemes of the application, the base is also provided with a support arm for pushing the push-down and opening the die to rise, and an arm groove for the support arm to pass through is arranged in the toggle push plate.

As one preferable scheme of the application, the top end of the support arm is slightly higher than the top end of the poking push plate.

The technical scheme is realized, the friction between the push plate horizontally transversely moving folded edge and the bottom surface of the downward pressing and stretching die during resetting after the push plate is stirred is effectively avoided, and the transverse moving is more labor-saving and stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pressing and expanding die is an integral part and is fixed through bolts, so that the disassembly, assembly and replacement are convenient;

2. the inserting and pressing component and the pushing and expanding die work independently, the short folding edge and the long folding edge of the pocket are shaped respectively, the folding edges are not affected each other, the deformation of cloth is reduced as a whole, the folding quality of the pocket is improved, and the pocket is suitable for processing a pocket opening with a wider size;

3. when in folding, the material supporting plate and the poking pushing plate are not interfered with each other, the folding rebound is effectively avoided, the yield is high, the bag mouth processing with narrower size can be adapted, and the applicability is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic view of the overall structure of a bag mouth shaping device;

FIG. 2 is a schematic view of the structure of the hold-down and hold-open member;

FIG. 3 is a schematic view of an exploded construction of a hold-down spreader component;

FIG. 4 is a schematic view of the structure of the press frame member in the sizing member;

FIG. 5 is a schematic structural view of a slot structure in a sizing component;

FIG. 6 is a schematic view of the structure of the notch in the sizing component and the tray component;

FIG. 7 is a schematic structural view of a second limiting plate and a short shovel plate;

FIG. 8 is a schematic view of the structure of the hemming member;

FIG. 9 is a schematic view of an exploded construction of the hemming assembly;

fig. 10 is an enlarged view of a portion of the slot structure.

Reference numerals: 1. a work table; 2. a sizing component; 3. pressing the opening part downwards; 31. pressing down and opening the die; 32. a first driving member; 321. a connecting block; 33. an elastic mounting seat; 331. a fixed block; 332. a guide post; 333. a spring; 334. a mounting base; 34. an insertion pressing part; 341. a lower insert sheet; 342. a second driving member; 343. a spacing adjustment member; 3431. a first spacing adjustment member; 3432. a second spacing adjustment member; 35. auxiliary tabletting; 351. pressing into tablets; 352. tabletting; 36. a guide member; 361. a slide rail; 362. a slide block; 4. a hemming member; 41. a base; 42. the push plate is stirred; 421. a through port; 422. a support arm; 423. an arm slot; 43. a sixth driving member; 44. a fifth driving member; 5. a notch structure; 51. a panel; 52. a first limiting piece; 53. the second limiting piece; 531 a second slide shaft; 54. a first adjustment structure; 541. a first adjusting cylinder; 542. a first adjusting lever; 55. a second adjustment structure; 551. a second adjusting cylinder 551; 552. a second adjusting lever; 561. a chute; 6. a frame pressing member; 61. pressing a frame; 62. a third driving member; 621. a vertical plate; 622. an upper pressure cylinder; 623. a mounting plate; 624. an intermediate plate; 63. a fourth driving member; 64. a frame pressing limiting block; 7. a material supporting component; 71. a material supporting plate; 711. a material supporting tooth; 8. a blade member; 81. short shovel pieces; 811. a spade hole; 82. a third adjustment structure; 821. a third adjusting cylinder; 822. a third adjusting lever;

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

Referring to fig. 1, a pocket mouth shaping device of a cloth bag opening and folding machine disclosed in an embodiment of the application comprises a workbench 1 which is horizontally arranged; the material fixing component 2 is arranged in the workbench 1 and used for fixing the fabric and the pocket mouth flanging; the downward-pressing opening part 3 is arranged above the workbench 1 and used for opening the folded edges after bag opening to the periphery; and a hemming member 4 provided below the table 1 for performing a specific hemming operation.

Referring to fig. 2 and 3, a pressing and expanding member 3 is disposed above the working table 1, the pressing and expanding member 3 includes a pressing and expanding mold 31 capable of being engaged with and matched with the notch in the fixed material member 2, and a first driving member 32 for driving the pressing and expanding mold 31 to lift, in this embodiment, the first driving member 32 is set as a pressing cylinder, the pressing and expanding mold 31 is rectangular and block, when the first driving member 32 is started, the pressing and expanding mold 31 is pushed to descend, and is embedded into the notch of the fixed material member 2, so that the edge folds around the pocket are extruded into the notch to complete preliminary shaping.

In order to realize automatic reset of the push-down stretching die 31 and avoid resilience of the folded edge after preliminary shaping, a connecting block 321 is horizontally arranged at the bottom end of the first driving piece 32, an elastic mounting seat 33 is horizontally and fixedly connected to the connecting block 321, the elastic mounting seat 33 comprises a bar-shaped block-shaped fixed block 331 fixedly connected with the connecting block 321, a plurality of guide posts 332 vertically slide along the length direction of the fixed block 331 to penetrate through the fixed block 331, the bottom ends of the guide posts 332 are fixedly connected with a mounting seat 334 together, a mounting groove and a screw hole are formed in the bottom surface of the mounting seat 334, the push-down stretching die 31 is connected under the mounting seat 334 through bolts, a spring 333 is sleeved on the outer side wall of the guide post 332, the top end of the spring 333 is abutted to the bottom surface of the fixed block 331, and the bottom end of the spring 333 is abutted to the surface of the mounting seat 334;

in order to avoid the interference of the short edge shovel sheet of the bag mouth and influence the quality of the long edge folding during edge folding, two ends of the fixed block 331 of the lower pressing and expanding part 3 are provided with a pressing part 34 for pressing the short edge of the bag mouth, the pressing part 34 comprises a lower inserting sheet 341 and a second driving piece 342 for driving the lower inserting sheet 341 to lift, and the second driving piece 342 is a lower pressing cylinder in the embodiment; meanwhile, in order to achieve the processing of the pockets with different lengths, the inserting and pressing component 34 further comprises a spacing adjusting component 343, the spacing adjusting component 343 is a connecting block with a notch, the spacing between the inserting and pressing components 34 is adjusted through the translation of the notch and is fixed through a bolt, the spacing adjusting component 343 in the embodiment is set to be a first spacing adjusting component 3431 and a second spacing adjusting component 3432, the first spacing adjusting component 3431 and the second spacing adjusting component 3432 can be independently installed or can be jointly installed, the first spacing adjusting component 3431 is installed between the fixed block 331 and the second driving component 342 and is used for adjusting the spacing between the second driving component 342, so that the adjustment of the lengths of the pockets with different lengths is achieved, and in order to further increase the adjustment range, the second spacing adjusting component 3432 is arranged between the second driving component 342 and the lower inserting piece 341.

For strengthening the fixed to sack edge cloth, push down the lateral surface of opening part 3 length direction and all be equipped with auxiliary pressing piece 35, for the structure compacter, auxiliary pressing piece 35 is including the last preforming 351 and the lower preforming 352 of the upper and lower ladder formula setting of an organic whole, and the periphery edge of going up preforming 351 is greater than lower preforming 352, goes up the upper end of preforming 351 and is equipped with the mounting notch to fix in the fixed block 331 outside through the bolt. After the cloth is cut by the laser, the second driving member 342 drives the lower insert 341 to descend, the short edge of the bag opening is inserted into the shovel hole 811, the lower insert 341 resets, the short edge of the bag opening is folded by the short shovel 81, then the lower driving member 32 drives the lower supporting die 31 and the auxiliary pressing sheet 35 to be simultaneously pressed down, and the lower supporting die passes through the frame hole of the upper pressing frame 61 until the bottom edge of the lower pressing sheet 352 is pressed and held at the edge of the cloth opening, the cloth is further fixed, and the lower supporting die 31 is embedded into the notch structure of the material fixing component 2.

In order to improve the stability of the lifting of the push-down and stretching die 31, the push-down and stretching member 3 is provided with a guide member 36, and the guide member 36 includes a slide rail 361 vertically provided in the fixed block 331, and a slider 362 fixedly mounted on the fixed block 331 and mated with the slide rail 361.

In order to enhance the cushioning effect, the push-down spreader part 3 is equipped with a tension spring 37.

Referring to fig. 4 to 7, the material fixing part 2 comprises a notch structure 5, a frame pressing part 6 arranged above the notch structure 5 and used for pressing and holding cloth, a material supporting plate part 7 arranged below the notch structure 5 in the length direction and used for supporting a long hem of a bag mouth, and a shovel piece part 8 arranged below the notch structure 5 in the width direction and used for folding a short hem of the bag mouth.

The frame pressing part 6 comprises a third driving piece 62 which is arranged on the workbench 1 and used for driving the upper pressing frame 61 to vertically lift and move, the third driving piece 62 comprises a vertical plate 621, an upper pressing cylinder 622 which is vertically arranged on the vertical plate 621, and a mounting plate 623 which is arranged on the vertical plate 621 in a sliding manner and connected with the piston rod end of the upper pressing cylinder 622, a middle plate 624 is horizontally arranged on the mounting plate 623, and the upper pressing frame 61 is connected with the middle plate 624 through bolts.

In order to enhance the fixing effect after the edge folding and improve the durability of the limiting plate, the frame pressing component 6 further comprises a fourth driving piece 63 and a frame pressing limiting block 64, wherein the fourth driving piece 63 is used for limiting the lower pressure of the upper frame pressing 61, in the embodiment, the fourth driving piece 63 is set to be a limiting cylinder, before the third driving piece 62 drives the upper frame pressing 61 to press downwards, the fourth driving piece 63 starts to press on the frame pressing limiting block 64, the descending height of the frame pressing is limited to be slightly pressed on cloth, and excessive pressure is avoided to be caused to limiting pieces of the notch.

The notch structure 5 comprises a panel 51 provided with a rectangular notch, first limiting pieces 52 which are arranged below the panel 51 in a relatively parallel manner along the length direction of the notch and can be mutually close to or far away from each other, second limiting pieces 53 which are arranged below the panel 51 in a relatively parallel manner along the width direction of the notch and can be mutually close to or far away from each other, and front ends of the two second limiting pieces 53 are positioned between the two first limiting pieces 52, so that limiting notches in the material fixing part 2 are formed together and used for limiting the size of a flanging pocket. The first limiting piece 52 and the second limiting piece 53 are respectively configured with a first adjusting structure 54 and a second adjusting structure 55 that drive the first limiting piece and the second limiting piece to approach each other or separate from each other, and the first adjusting structure 54 includes: one end of the first adjusting rod 542 is horizontally connected with the end part of the first limiting piece 52, the other end of the first adjusting rod 542 is connected with the first adjusting cylinders 541 arranged at the two ends of the first limiting piece 52 in the length direction, the piston rods of the first adjusting cylinders 541 are vertical to the length direction of the first limiting piece 52, and the two first limiting pieces 52 can be mutually close to or far away from each other by being driven by the first adjusting cylinders 541; the second adjustment structure 55 includes: one end is horizontally connected with a second adjusting rod 552 arranged at the end part of the second limiting piece 53, the other end of the second adjusting rod 552 is connected with a second adjusting cylinder 551 which is arranged side by side with the first adjusting cylinder 541, the second adjusting rod 552 is two sections, the two sections are movably hinged, and the two second limiting pieces 53 can be mutually close to or far away from each other by being driven by the second adjusting cylinder 551.

In order to prevent the hem from rebounding, a material supporting component 7 is further arranged below the first limiting piece 52, the material supporting component 7 comprises a material supporting plate 71 which is opposite to and parallel to the first limiting piece 52, a material supporting cylinder 72 which is arranged on the workbench 1 and used for driving the material supporting plate 71 to be close to or far away from each other, a piston rod of the material supporting cylinder 72 is connected with the corresponding material supporting plate 71 through bolts, and a plurality of material supporting teeth 711 are arranged at intervals on one side, close to each other, of the material supporting plate 71 so as to avoid the material supporting plate from interfering with the poking pushing plate.

The shovel part 8 includes short shovel 81 and is used for driving short shovel 81 is along the flexible third regulation structure 82 who removes of first spacing piece 52 length direction, and third regulation structure 82 includes: the third adjusting cylinder 821 and the third adjusting rod 822, the third adjusting rod 822 is two sections, the two sections are movably hinged, one end of the third adjusting rod 822 is movably hinged with the driving rod of the third adjusting cylinder 821, and the other end of the third adjusting rod 822 is movably hinged with the short shovel piece 81; the short shovel 81 is also provided with a shovel hole 811 for the lower insert 341 to pass through; in order to improve the width adjustment range, the width of the lower insert piece 341 is slightly smaller than the width of the second limiting piece 53, and the width of the shovel piece hole 811 is slightly larger than the width of the lower insert piece 341.

The second limiting piece 53 is further provided with a second sliding shaft 531, the short shovel piece 81 is further provided with a third sliding shaft 812, the fixed material part 2 further comprises a limiting and adjusting piece 56, the limiting and adjusting piece 56 is of a cover body structure and is buckled above the second limiting piece 53 and the short shovel piece 81, the limiting and adjusting piece 56 is provided with a sliding groove 561 parallel to the first limiting piece 52, and the second sliding shaft 531 and the third sliding shaft 812 are slidably arranged in the sliding groove 561 and used for limiting the second sliding shaft 531 and the third sliding shaft 812 to move along the length direction of the first limiting piece 52.

Referring to fig. 8 and 9, the hemming member 4 includes a base 41 disposed to be lifted, a pair of toggle pushing plates 42 disposed on the base 41, wherein the base 41 is disposed under the table 1, a fifth driving member 44 is disposed, and the base 41 is lifted in a vertical direction by the fifth driving member 44; the poking push plate 42 is a group of oppositely arranged hemming push plates and is used for folding long hemming edges of the bag opening, and is provided with a sixth driving piece 43, the poking push plates are driven by the sixth driving piece 43 to horizontally move horizontally, so that the poking push plates are mutually close to or far away from each other, the fifth driving piece 43 is a screw rod lifter, and the sixth driving piece 43 is a synchronous cylinder.

The poking push plate 42 is also provided with a through hole 421 for the material supporting teeth 711 to pass through, and the material supporting teeth 711 can be embedded into the through hole 421 to jointly form a long-folded material supporting surface. The base 41 is also provided with a support arm 422 for pushing the push-down and stretching die 31 to rise, and the stirring push plate 42 is provided with an arm groove 423 for the support arm 422 to pass through, so that the stirring push plate 42 is not interfered by the support arm 422 when horizontally traversing, and the top surface of the support arm 422 is slightly higher than the top surface of the stirring push plate 42. When the base 41 rises, the stirring push plate 42 and the support arm 422 are driven to rise simultaneously, when the top surface of the support arm 422 is propped against the bottom surface of the push-down stretching die 31, the push-down stretching die 31 can be pushed to move upwards, the long folding edge of the bag mouth is folded through the stirring push plate 42 transversely, and finally the bag mouth folding edge pushed to the lower side of the first limiting plate 52 by the stirring push plate 42 is supported by the material supporting teeth 711, so that the folding edge can not rebound when the stirring push plate 42 is reset, and the shaping effect is effectively improved.

The implementation principle of the pocket mouth shaping device of the cloth bag opening and folding machine is as follows: placing the cloth on a workbench 1, covering the position of the cloth to be opened on a notch structure 5, and pressing and fixing the cloth through an upper pressing frame 61; the laser device cuts the cloth, the second driving piece 342 drives the lower inserting piece 341 to descend, the short folding edge of the bag opening is inserted into the shovel piece hole 811, the lower inserting piece 341 rises and resets, the short shovel pieces 81 are mutually far away under the driving of the third adjusting structure 82, and the short edges of the bag are folded;

then, the pressing and expanding die 31 and the auxiliary pressing piece 35 are driven by the pressing and expanding driving piece 32 to be pressed downwards simultaneously, and pass through the frame hole of the upper pressing frame 61 until the bottom edge of the lower pressing piece 352 is pressed at the edge of the cloth open hole, so that the cloth is further fixed, the pressing and expanding die 31 is embedded into the notch structure 5, the long folded edge of the bag opening is extruded to two sides and extruded to the lower part of the notch structure 5, and the long folded edge of the bag opening is primarily shaped;

then, the base 41 rises to drive the poking push plate 42 to rise, and simultaneously, the pushing and pressing and stretching die 31 is upwards extruded to deform the spring 333, the pushing and stretching die 31 is upwards moved, the bottom edge of the lower pressing sheet 352 is still pressed and held at the edge of a cloth opening to prevent cloth displacement until the poking push plate 42 rises above the material supporting plate 71, the poking push plate 42 is horizontally moved and unfolded to two sides under the starting of the sixth driving piece 43 to finish the folding edge of the long folding edge of the pocket, then the material supporting cylinder 72 starts to push the material supporting plate 71 to be close to each other, the material supporting teeth 711 are embedded into the through holes 421 of the poking push plate 42 to replace the poking push plate 42 to hold up and shape the folded pocket folding edge, and the poking push plate 42 is mutually close to reset and descends; the pressing driving piece 32 is started again, the pressing and expanding die 31 and the auxiliary pressing piece 35 are driven to ascend and leave the cloth, the first limiting piece 52 and the second limiting piece 53 are retracted, the fourth driving piece 63 exits the pressing frame limiting piece 64, the upper pressing frame is continuously pressed downwards, and the folded bag opening is shaped.

The foregoing embodiments are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, but are intended to cover all equivalent changes in structure, shape and principle of the present application.

Claims (10)

1. The utility model provides a sack setting device of bag machine is rolled over to cloth open bag, includes workstation (1), setting material part (2) in workstation (1), setting up push down in workstation (1) top and strut part (3) to and set up hem part (4) in workstation (1) below, its characterized in that:

the push-down opening part (3) comprises: the pressing and expanding device comprises a pressing and expanding die (31), a first driving piece (32) for driving the pressing and expanding die (31) to lift and a pressing component (34) for pressing the short edge of the bag mouth, wherein the pressing component (34) comprises a lower inserting piece (341) and a second driving piece (342) for driving the lower inserting piece (341) to lift;

the sizing component (2) comprises: the folding bag comprises a notch structure (5) used for limiting the size of a bag opening, a frame pressing component (6) arranged above the notch structure (5) and used for pressing and holding cloth, a material supporting component (7) arranged below the notch structure (5) in the length direction and used for supporting a long hem of the bag opening, and a shovel piece component (8) arranged below the notch structure (5) in the width direction and used for folding a short hem of the bag opening, wherein the shovel piece component (8) comprises a short shovel piece (81) and a third adjusting structure (82) used for driving the short shovel piece (81) to move in a telescopic mode, and the short shovel piece (81) is further provided with a shovel piece hole (811) used for allowing a lower inserting piece (341) to pass through;

the hemming member (4) includes: the device comprises a base (41) arranged in a lifting manner, a pair of opposite poking pushing plates (42) arranged in parallel on the base (41), and a sixth driving piece (43) for driving the poking pushing plates (42) to horizontally move transversely.

2. The bag mouth shaping device of the cloth bag opening and folding machine according to claim 1, wherein the inserting and pressing component (34) further comprises a spacing adjusting piece (343) for adjusting the spacing between the two lower inserting pieces (341).

3. The bag opening and shaping device of the cloth bag opening and folding machine according to claim 2, wherein an auxiliary pressing sheet (35) is arranged on the outer side of the length direction of the lower pressing and opening component (3), and the auxiliary pressing sheet (35) comprises an upper pressing sheet (351) and a lower pressing sheet (352) which are integrally arranged in a step shape.

4. The bag opening and shaping device of the cloth bag opening and folding machine according to claim 3, wherein the pushing-down opening component (3) further comprises a guiding component (36) for stabilizing the lifting of the pushing-down opening die (31), and the guiding component (36) comprises a sliding rail (361) vertically arranged in the pushing-down opening component (3) and a sliding block (362) matched with the sliding rail (361).

5. The bag opening and folding machine for cloth material according to claim 1, wherein the third adjusting structure (82) comprises: the third adjusting cylinder (821) and the third adjusting rod (822), the third adjusting rod (822) is divided into two sections, the two sections are movably hinged, one end of the third adjusting rod (822) is movably hinged with a driving rod of the third adjusting cylinder (821), and the other end of the third adjusting rod is movably hinged with the short shovel piece (81).

6. The bag mouth shaping device of the cloth bag opening and folding machine according to claim 1, wherein the frame pressing component (6) comprises an upper frame pressing (61) and a third driving piece (62) for driving the upper frame pressing (61) to lift in the vertical direction.

7. The bag opening and bag folding machine for cloth according to claim 6, wherein the frame pressing component (6) further comprises a fourth driving piece (63) and a frame pressing limiting block (64) for limiting the pressing height of the upper frame (61).

8. The bag mouth shaping device of the cloth bag opening and folding machine according to claim 1, wherein the material supporting component (7) comprises opposite material supporting plates (71) which are arranged in parallel, material supporting teeth (711) are arranged at intervals on one sides of the material supporting plates (71) which are close to each other, and through holes (421) for the material supporting teeth (711) to pass through are formed in the corresponding poking pushing plates (42).

9. The bag opening and bag folding machine for cloth according to claim 8, wherein the base (41) is further provided with a support arm (422) for pushing the push-down opening die (31) to rise, and the toggle push plate (42) is provided with an arm groove (423) for passing through the support arm (422).

10. The bag opening and bag folding machine for cloth according to claim 9, wherein the top end of the support arm (422) is slightly higher than the top end of the poking push plate (42).

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