CN111361211B - Method for manufacturing and processing plastic woven bag - Google Patents

Method for manufacturing and processing plastic woven bag Download PDF

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Publication number
CN111361211B
CN111361211B CN202010178210.5A CN202010178210A CN111361211B CN 111361211 B CN111361211 B CN 111361211B CN 202010178210 A CN202010178210 A CN 202010178210A CN 111361211 B CN111361211 B CN 111361211B
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China
Prior art keywords
plate
woven bag
plastic woven
sewing
cutting
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CN202010178210.5A
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Chinese (zh)
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CN111361211A (en
Inventor
倪淑君
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YANCHENG YIDE PLASTIC PACKAGING CO.,LTD.
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Yancheng Yide Plastic Packaging Co ltd
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Priority to CN202010178210.5A priority Critical patent/CN111361211B/en
Publication of CN111361211A publication Critical patent/CN111361211A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/68—Uniting opposed surfaces or edges; Taping by stitching, stapling or riveting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B65H20/08—Advancing webs by friction band to effect step-by-step advancement of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/10—Flexible containers made from sheets or blanks, e.g. from flattened tubes the longitudinal axes of the containers being parallel to the direction in which the sheets or blanks are fed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations

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  • Treatment Of Fiber Materials (AREA)

Abstract

The invention relates to a manufacturing and processing method of a plastic woven bag, which comprises a workbench, two side plates, a flattening device, a conveying device, a cutting device, a sewing device and a blanking device, wherein the side plates are symmetrically arranged at the front and back of the upper end of the workbench, the flattening device is arranged at the left end of the inner side of the side plates, the conveying device is arranged on the right side of the flattening device, the cutting device is arranged on the right side of the conveying device, the sewing device is arranged on the right side of the cutting device, and the blanking device is arranged at the right end of the sewing device. The invention provides a method for manufacturing and processing a plastic woven bag, which can solve the problems that the plastic woven bag is manufactured by adopting a processing mode of manually matching a machine to cut or sew when the traditional plastic woven bag is manufactured, the accuracy and efficiency of manual cutting or sewing are lower, the plastic woven bag is directly cut and sewn when the traditional plastic woven bag manufacturing equipment is manufactured, the plastic woven bag is easily unqualified to be manufactured due to the fold and dislocation of the plastic woven bag, and the like.

Description

Method for manufacturing and processing plastic woven bag
Technical Field
The invention relates to the technical field of woven bag manufacturing, in particular to a manufacturing and processing method of a plastic woven bag.
Background
The plastic woven bag is made into a polypropylene bag and a polyethylene bag according to main materials; the bag is divided into a bottom sewing bag and a side sewing bag according to the sewing method. The packaging material is widely applied to the articles such as fertilizers, chemical products and the like at present. The main production process is to extrude, cut and unidirectionally stretch plastic raw materials into flat filaments, and the flat filaments are woven by warps and wefts to obtain the product. The plastic woven bag is widely used for transportation packaging and industrial and agricultural products, and in agricultural product packaging, the plastic woven bag is widely used for aquatic product packaging, poultry feed packaging, covering materials of farms, sun-shading, windproof and hail-suppression sheds for crop planting and the like. Common products include woven bags for feed, woven bags for chemical industry, woven bags for putty powder, woven bags for urea, mesh bags for vegetables, mesh bags for fruits and the like.
The existing plastic woven bag manufacturing equipment has the following problems when manufacturing and processing plastic woven bags:
(1) when a traditional plastic woven bag is manufactured, a processing mode of mechanical sewing after manual cutting or manual sewing after mechanical cutting is generally adopted to manufacture the plastic woven bag, a large amount of labor is wasted during manufacturing the plastic woven bag, and the accuracy and efficiency of manual cutting or sewing are low, so that the manufacturing efficiency of the plastic woven bag is low;
(2) current plastic woven sack preparation equipment is when making processing to plastic woven sack, directly cuts out, sews up work to the plastic woven sack after the establishment is accomplished usually, cuts out, sews up the in-process, very easily takes place because the fold appears in the plastic woven sack, leads to cutting out, appears when sewing up the plastic woven sack because fold, dislocation and lead to the unqualified condition of plastic woven sack preparation.
In order to make up the defects of the prior art, the invention provides a method for manufacturing and processing a plastic woven bag.
Disclosure of Invention
The technical scheme adopted by the invention to solve the technical problem is as follows: a method for manufacturing and processing a plastic woven bag comprises the following specific steps:
s1, feeding: the woven bag penetrates between the connecting rod and the mounting plate manually, so that one end of the plastic woven bag is pulled and fed by the conveying belt;
s2, flattening: after the feeding is finished, the plastic woven bag is pulled to move through the conveyor belt, so that the flattening wheel flattens the folds at the upper end of the plastic woven bag, the folds at the lower end of the plastic woven bag are flattened through the support rod, and the flattened plastic woven bag is rolled and shaped through the flattening roller;
s3, cutting: after the plastic woven bag is flattened, the plastic woven bag is conveyed to the lower end of the cutting device through the conveying belt, the cutting cylinder is driven to descend through the air pump, the moving plastic woven bag is locked by the fixing mechanism, and the plastic woven bag is cut by the cutting mechanism;
s4, sewing: after the plastic woven bag is cut, the air pump drives the sewing cylinder to descend, so that the C-shaped plate and the fixing plate clamp and fix the cut woven bag, and the sewing mechanism sews the left end of the cut woven bag;
s5, blanking: after the plastic woven bag is sewn, the air pump drives the sewing cylinder to ascend, so that the rotating plate drives the blanking rod to rotate around the cross rod, and the blanking roller column and the sliding roller are used for blanking and collecting the sewn woven bag;
in the process of manufacturing and processing the plastic woven bag in the steps S1-S5, the plastic woven bag is manufactured and processed by adopting a specially designed device, the device specifically comprises a workbench, two side plates, a flattening device, a conveying device, a cutting device, a sewing device and a blanking device, the side plates are symmetrically installed at the front and back of the upper end of the workbench, the flattening device is installed at the left end of the inner side of each side plate, the conveying device is arranged on the right side of the flattening device, the cutting device is arranged on the right side of the conveying device, the cutting device is installed in the middle of the upper end of the workbench, the sewing device is arranged on the right side of the cutting device, and the blanking device is installed at the right end of the sewing device; wherein:
the flattening device comprises a transverse plate, a flattening roller, two connecting rods, a connecting spring, two flattening wheels, a mounting plate, two supporting rods, two buffer springs and two limiting plates, the transverse plate is mounted at the left end of the inner side of a side plate in a welding mode, the flattening roller is mounted at the lower end of the transverse plate through a bearing, the connecting rods are symmetrically mounted at the left end of the transverse plate through hinges in the front-back direction, the middle part of each connecting rod is connected with the transverse plate through the connecting spring, the connecting springs play roles of buffer protection and reset, the flattening wheels are mounted at the lower ends of the connecting rods through the bearings, the mounting plate is mounted at the left side of the upper end of the workbench, the supporting rods are symmetrically mounted at the lower end of the mounting plate through hinge pins in the front-back direction, the right ends of the supporting rods are connected with the mounting plate through the buffer springs, the buffer springs play roles of buffer protection and reset, the limiting plates are arranged at the outer sides of the buffer springs, the supporting rods are subjected to limit protection through the limiting plates during specific work, the woven bag which is woven well manually penetrates between the connecting rod and the mounting plate, so that the conveying device pulls one end of the plastic woven bag for loading, the plastic woven bag moves in the process of pulling the loading, the flattening wheel flattens the upper end of the plastic woven bag, the lower end of the plastic woven bag is flattened through the supporting rod, and the flattened plastic woven bag is rolled and shaped through the flattening roller.
The conveying device comprises two conveying shafts, a conveying belt, two pressing blocks, two mounting cylinders, a conveying roller column and two return springs, the conveying shafts are symmetrically mounted on a side plate in a left-right mode through bearings, the conveying shafts are connected through the conveying belt, the pressing blocks are symmetrically mounted on the front portion and the rear portion of the conveying shaft on the right side, the mounting cylinders are arranged at the upper ends of the pressing blocks and welded on the side plate, the conveying roller column is mounted between the mounting cylinders through the bearings, the lower end of each mounting cylinder is connected with the corresponding pressing block through the corresponding return spring, the return springs play roles of buffering, damping and returning, during specific work, the conveying belt is driven to rotate through the conveying shafts, so that the conveying belt and the conveying roller column can drag and feed one end of the plastic woven bag, when the plastic woven bag is dragged and fed, the plastic woven bag in motion is locked and cut through the cutting device, and when the pressing blocks are downwards through the cutting device, make the briquetting drive the rotatory decline of right-hand member conveying axle to conveyer belt and transmission rod post pause pull the material loading to plastic woven sack when making the locking to tailor, the locking is tailor and is accomplished the back, tailors the device and rises, thereby makes reset spring drive the rotatory reset of right-hand member conveying axle, and then makes conveyer belt and transmission rod post pull the material loading to plastic woven sack.
The cutting device comprises a U-shaped mounting plate, an air pump, a cutting cylinder, a connecting plate, a fixing mechanism and a cutting mechanism, wherein the U-shaped mounting plate is welded in the middle of the upper end of the workbench, the air pump is mounted on the left side of the upper end of the workbench in a threaded connection mode, the cutting cylinder is mounted at the lower end of the inner side of the U-shaped mounting plate, the connecting plate is welded at the extending end of the cutting cylinder, the fixing mechanism is mounted on the left side of the lower end of the connecting plate, the cutting mechanism is arranged on the right side of the fixing mechanism, the cutting mechanism is mounted at the lower end of the connecting plate, and when the cutting device works, the cutting cylinder is driven by the air pump to descend, so that the connecting plate drives the fixing mechanism to descend, the pressing block is extruded when the fixing mechanism descends, the conveying belt and the conveying roller column are suspended to pull and feed the plastic woven bags, therefore, the fixing mechanism locks the plastic woven bag, and the plastic woven bag is cut and separated through the cutting mechanism after being locked.
The sewing device comprises a sewing cylinder, a C-shaped plate, three connecting columns, a reinforcing rod, a sewing mechanism and a fixing plate, wherein the sewing cylinder is arranged at the lower end of the inner side of a U-shaped mounting plate, the C-shaped plate is welded at the extending end of the sewing cylinder, the connecting columns are uniformly arranged at the right end of the inner side of the C-shaped plate from front to back, the middle parts of the connecting columns are connected with the upper end of the inner side of the C-shaped plate through the reinforcing rod, the sewing mechanism is arranged on the left side of the connecting columns, the fixing plate is arranged below the C-shaped plate, the fixing plate is arranged on the upper end of a workbench, in the specific working process, after the woven bag is locked and cut, the sewing cylinder is driven by an air pump to descend, so that the C-shaped plate descends, the plastic woven bag after being cut is clamped by the C-shaped plate and the fixing plate, after the plastic woven bag is clamped, the left end of the plastic woven bag is sewn by the sewing mechanism, the air pump drives the sewing cylinder to ascend, so that the C-shaped plate and the fixing plate unlock and loosen the sewed plastic woven bag, and the discharging device collects the sewed plastic woven bag in a discharging mode.
Unloader includes the rotor plate, the horizontal pole, the unloading pole, unloading roller and sliding roller, the dwang leads to the hinge mount and is in C shaped plate right side upper end, the rotor plate middle part is installed on the curb plate through the horizontal pole, the welding of rotor plate right-hand member has the unloading pole, unloading roller lower extreme is installed through the bearing, turn right from a left side and evenly be equipped with the sliding roller on workstation upper end right side, the unloading roller passes through sliding fit's mode and installs in the workstation, concrete during operation, the back is sewed up to the plastic woven sack left end, it rises to drive the sewing cylinder through the air pump, make the C shaped plate rise, thereby make the C shaped plate drive the rotor plate right-hand member around the horizontal pole downwardly rotating, make the laminating of unloading roller on the plastic woven sack after sewing up, thereby make unloading roller and sliding roller to process the plastic woven sack unloading after accomplishing and collect.
As a preferred technical scheme of the invention, the connecting rod and the supporting rod are expanded from right to left to outside, and the outward expansion structure is convenient for the supporting rod and the flattening wheel to expand the folds at the upper end and the lower end of the plastic woven bag.
As a preferred technical scheme, the middle of the side plate is provided with an arc-shaped groove, the outer side of the pressing block is installed in the arc-shaped groove in a sliding fit mode, and the pressing block slides along the arc-shaped groove so as to be limited and guided.
As a preferred technical scheme of the invention, the fixing mechanism comprises three compression rods, three sliding sleeves, a damping spring, a movable pressing plate and a fixed pressing plate, the compression rods are uniformly welded on the left side of the lower end of the connecting plate from front to back, the sliding sleeves are arranged at the lower ends of the compression rods in a sliding fit manner, the compression rods are connected with the sliding sleeves through the damping spring, the damping spring plays roles of buffering, damping and resetting, the movable pressing plate is welded at the lower end of the sliding sleeve, the fixed pressing plate is arranged below the movable pressing plate, the fixed pressing plate is arranged on a workbench, in the specific work process, a cutting cylinder is driven by an air pump to descend, so that the connecting plate downwards extrudes the compression rods, the movable pressing plate and the fixed pressing plate are used for attaching and clamping the plastic woven bags, after the plastic woven bags are attached and clamped, the connecting plate continuously extrudes the compression rods, and the damping spring is enabled to move into the sliding sleeves by the compressing rods, thereby making the cutting mechanism continue to descend and further cutting off the plastic woven bag after being attached and clamped.
As a preferred technical scheme of the invention, the cutting mechanism comprises a cutting knife, a square sleeve, a knife bearing block and a compression spring, the cutting knife is arranged on the right side of the lower end of a connecting plate in a welding mode, the square sleeve is arranged at the lower end of the cutting knife and is arranged in a workbench, the knife bearing block is arranged in the square sleeve in a sliding fit mode, the lower end of the knife bearing block is connected with the square sleeve through the compression spring, when the cutting mechanism works, a cutting cylinder is driven to descend through an air pump, a movable pressing plate and a fixed pressing plate enable a plastic woven bag to be attached and clamped, after the plastic woven bag is attached and clamped, the connecting plate continues to downwards extrude the compression rod, the compression rod extrudes a damping spring to move towards the inside of a sliding sleeve, so that the cutting knife cuts off the plastic woven bag, the knife bearing block is extruded by the cutting knife in the cutting process, the compression spring is extruded by the knife bearing block to slide towards the square sleeve, thereby protecting the scissors and avoiding the damage of the scissors caused by overlarge descending impact force.
As a preferable technical scheme of the invention, the upper end of the cutter bearing block is of a V-shaped structure, the V-shaped structure is made of a soft material, the cutter bearing block is convenient to be attached to the cutting knife by the V-shaped structure, so that the plastic woven bag is easy to cut and break, and the cutting knife is protected by the soft material, so that the condition of damage to the cutting knife is reduced.
As a preferred technical scheme of the invention, soft rubber layers are respectively arranged at the lower ends of the movable pressing plate and the C-shaped plate, and the soft rubber layers are correspondingly arranged at the upper ends of the fixed pressing plate and the fixed plate, so that the condition that the plastic woven bag is damaged when the plastic woven bag is locked and clamped is reduced through the soft rubber layers.
As a preferred technical scheme of the invention, the sewing mechanism comprises a rotating motor, a driving gear, a driven gear, a screw rod, a sewing head, a pressing sheet and a guide rod, wherein the rotating motor is arranged at the front end of the inner side of a C-shaped plate through a motor mounting plate, the driving gear is welded at the output end of the rotating motor, the driving gear is meshed with the driven gear, the driven gear is arranged at the front end of the screw rod in a welding mode, the screw rod is arranged on the C-shaped plate through a bearing, the sewing head is arranged on the screw rod in a threaded matching mode, the pressing sheet is arranged at the lower end of the sewing head, the guide rod is arranged at the left end of the screw rod, the sewing head is arranged on the guide rod in a sliding matching mode, when the sewing mechanism works, after the plastic woven bag is clamped by the C-shaped plate and a fixing plate, the left end of the plastic woven bag is sewn through the sewing head, and the driving gear drives the driven gear to rotate through the rotation of the rotating motor during sewing, thereby make the lead screw drive the sewing head to sew up the plastic woven sack from the past backward, and when sewing up, compress tightly the laminating on the fixed plate with the plastic woven sack through the preforming to guarantee to sew up the condition that the department can not appear the crack.
Compared with the prior art, the invention has the following advantages:
1. according to the manufacturing and processing method of the plastic woven bag, the processing mode that the plastic woven bag is firstly flattened and wrinkle-removed, then cut and sewn is adopted, the condition that the plastic woven bag is unqualified to manufacture due to wrinkles and dislocation in the cutting and sewing process of the plastic woven bag is reduced, meanwhile, the manual labor is reduced, the cutting or sewing accuracy and efficiency are improved, and therefore the manufacturing efficiency of the plastic woven bag is improved;
2. according to the manufacturing and processing method of the plastic woven bag, the wrinkle part at the upper end of the plastic woven bag is flattened by the flattening wheel, the wrinkle part at the lower end of the plastic woven bag is flattened by the supporting rod, and the flattened plastic woven bag is rolled and shaped by the flattening roller after the wrinkle is flattened, so that the cutting or sewing accuracy and efficiency are ensured;
3. according to the manufacturing and processing method of the plastic woven bag, the plastic woven bag is attached and clamped through the movable pressing plate and the fixed pressing plate, so that the plastic woven bag is cut and disconnected by the cutter, and in the cutting process, the pressing block is extruded through the movable pressing plate and rotates and descends along the arc-shaped groove, so that the conveying belt and the conveying roller column are suspended to pull and feed the plastic woven bag during cutting;
4. according to the manufacturing and processing method of the plastic woven bag, the V-shaped structure is arranged at the upper end of the cutter bearing block, so that the cutter bearing block is convenient to attach to the cutting knife, the plastic woven bag is guaranteed to be cut and disconnected easily, the cutting knife is protected through the V-shaped structure made of the soft material, and the condition that the cutting knife is damaged is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the operation of the present invention;
FIG. 2 is a schematic perspective view of the present invention in its working state;
FIG. 3 is a front view of the working state of the present invention (except for the front end side plate and the U-shaped mounting plate);
FIG. 4 is a cross-sectional view of the working state of the present invention;
FIG. 5 is a schematic perspective view of the flattening device of the present invention (except for the cushion spring and the limiting plate);
FIG. 6 is a schematic plan view (from bottom to top) of the flattening apparatus according to the present invention;
FIG. 7 is a schematic perspective view of the cutting apparatus of the present invention (except for the U-shaped mounting plate and the air pump);
FIG. 8 is a schematic perspective view of the sewing apparatus of the present invention (except for the reinforcing bar);
FIG. 9 is a cross-sectional view of the sewing device of the present invention (except for the fixing plate);
FIG. 10 is a partial schematic view of the present invention between the C-shaped plate and the sewing mechanism;
FIG. 11 is an enlarged view of a portion of FIG. 4 according to the present invention in the X-direction;
FIG. 12 is an enlarged view of a portion of the invention in the Y-direction of FIG. 4.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 12.
A method for manufacturing and processing a plastic woven bag comprises the following specific steps:
s1, feeding: the woven bag penetrates between the connecting rod (33) and the mounting plate (36) manually, so that one end of the plastic woven bag is pulled and fed by the conveying belt (42);
s2, flattening: after the feeding is finished, the plastic woven bag is pulled to move through the conveying belt (42), so that the flattening wheel (35) flattens the folds at the upper end of the plastic woven bag, the folds at the lower end of the plastic woven bag are flattened through the supporting rod (37), and the flattened plastic woven bag is rolled and shaped through the flattening roller (32);
s3, cutting: after the plastic woven bag is flattened, the plastic woven bag is conveyed to the lower end of a cutting device (5) through a conveying belt (42), a cutting cylinder (53) is driven to descend through an air pump (52), so that a fixing mechanism (55) locks the moving plastic woven bag, and a cutting mechanism (56) cuts the plastic woven bag;
s4, sewing: after the plastic woven bag is cut, the air pump (52) drives the sewing cylinder (61) to descend, so that the C-shaped plate and the fixing plate (66) clamp and fix the cut woven bag, and the sewing mechanism (65) sews the left end of the cut woven bag;
s5, blanking: after the plastic woven bag is sewn, the air pump (52) drives the sewing air cylinder (61) to ascend, so that the rotating plate (71) drives the blanking rod (73) to rotate around the cross rod (72), and the blanking roller columns (74) and the sliding rollers (75) carry out blanking collection on the sewn woven bag;
in the process of manufacturing and processing the plastic woven bag in the steps S1-S5, the plastic woven bag is manufactured and processed by adopting a device with specific design, the device specifically comprises a workbench (1), two side plates (2), a flattening device (3), a conveying device (4), a cutting device (5), a sewing device (6) and a blanking device (7), the front and back of the upper end of the workbench (1) are symmetrically provided with side plates (2), the left end of the inner side of each side plate (2) is provided with a flattening device (3), the right side of each flattening device (3) is provided with a conveying device (4), the right side of each conveying device (4) is provided with a cutting device (5), each cutting device (5) is installed in the middle of the upper end of the workbench (1), the right side of each cutting device (5) is provided with a sewing device (6), and the right end of each sewing device (6) is provided with a blanking device (7); wherein:
the flattening device (3) comprises a transverse plate (31), a flattening roller (32), two connecting rods (33), a connecting spring (34), two flattening wheels (35), a mounting plate (36), two supporting rods (37), two buffer springs (38) and two limiting plates (39), the transverse plate (31) is mounted at the left end of the inner side of the side plate (2) in a welding mode, the flattening roller (32) is mounted at the lower end of the transverse plate (31) through a bearing, the connecting rods (33) are symmetrically mounted at the front and back of the left end of the transverse plate (31) through hinges, the middle of each connecting rod (33) is connected with the transverse plate (31) through the connecting spring (34), the connecting springs (34) play roles of buffer protection and reset, the flattening wheels (35) are mounted at the lower end of the connecting rods (33) through the bearing, the mounting plate (36) is mounted on the left side of the upper end of the workbench (1), the supporting rods (37) are symmetrically mounted at the front and back of the lower end of the mounting plate (36) through pin shafts, bracing piece (37) right-hand member passes through buffer spring (38) and links to each other with mounting panel (36), buffer spring (38) play the effect of buffer protection and reseing, buffer spring (38) outside is provided with limiting plate (39), carry out spacing protection through limiting plate (39) to bracing piece (37), concrete during operation, pass between connecting rod (33) and mounting panel (36) through the manual work with the braided bag that weaves, make conveyor (4) pull the material loading to plastic woven sack one end, pull the material loading in-process, plastic woven sack removes, make exhibition flat wheel (35) flatten to plastic woven sack upper end fold department, flatten plastics woven sack lower extreme fold department through bracing piece (37), and carry out the roll-in design through exhibition flat roller (32) with the plastic woven sack after the exhibition flat.
The conveying device (4) comprises two conveying shafts (41), a conveying belt (42), two pressing blocks (43), two mounting cylinders (44), a conveying roller column (45) and two reset springs (46), the conveying shafts (41) are symmetrically mounted on the side plates (2) through bearings in the left-right direction, the conveying shafts (41) are connected through the conveying belt (42), the pressing blocks (43) are symmetrically mounted on the front and back of the conveying shaft (41) on the right side, the upper ends of the pressing blocks (43) are provided with the mounting cylinders (44), the mounting cylinders (44) are welded on the side plates (2), the conveying roller column (45) is mounted between the mounting cylinders (44) through the bearings, the lower ends of the mounting cylinders (44) are connected with the pressing blocks (43) through the reset springs (46), the reset springs (46) play a role in buffering, damping and resetting, and during specific work, the conveying shaft (41) drives the conveying belt (42) to rotate, thereby make conveyer belt (42) and transmission rod post (45) pull the material loading to plastic woven sack one end, when pulling the material loading, the plastic woven sack in will moving through tailorring device (5) locks and tailors, when the locking is tailor, extrude briquetting (43) downwards through tailorring device (5), make briquetting (43) drive right-hand member conveying axle (41) rotatory decline, thereby conveyer belt (42) and transmission rod post (45) pause pull the material loading to plastic woven sack when making the locking tailor, the locking is tailor and is accomplished the back, it rises to tailor device (5), thereby make reset spring (46) drive right-hand member conveying axle (41) rotation and reset, and then make conveyer belt (42) and transmission rod post (45) pull the material loading to plastic woven sack.
The cutting device (5) comprises a U-shaped mounting plate (51), an air pump (52), a cutting air cylinder (53), a connecting plate (54), a fixing mechanism (55) and a cutting mechanism (56), the U-shaped mounting plate (51) is welded in the middle of the upper end of the workbench (1), the air pump (52) is installed on the left side of the upper end of the workbench (1) in a threaded connection mode, the cutting air cylinder (53) is installed at the lower end of the inner side of the U-shaped mounting plate (51), the connecting plate (54) is welded at the extending end of the cutting air cylinder (53), the fixing mechanism (55) is installed on the left side of the lower end of the connecting plate (54), the cutting mechanism (56) is arranged on the right side of the fixing mechanism (55), the cutting mechanism (56) is installed at the lower end of the connecting plate (54), and during specific work, the cutting air cylinder (53) is driven to descend by the air pump (52), so that the connecting plate (54) drives the fixing mechanism (55) to descend, and a pressing block (43) is extruded when the fixing mechanism (55) descends, make conveyer belt (42) and transmission rod post (45) pause and pull the material loading to the plastic woven sack to make fixed establishment (55) lock the plastic woven sack, the plastic woven sack locks the back, cuts out the plastic woven sack separately through cutting mechanism (56).
The sewing device (6) comprises a sewing cylinder (61), a C-shaped plate (62), three connecting columns (63), a reinforcing rod (64), a sewing mechanism (65) and a fixing plate (66), wherein the sewing cylinder (61) is installed at the lower end of the inner side of a U-shaped installation plate (51), the C-shaped plate (62) is welded at the extending end of the sewing cylinder (61), the connecting columns (63) are evenly installed at the right end of the inner side of the C-shaped plate (62) from front to back, the middle part of each connecting column (63) is connected with the upper end of the inner side of the C-shaped plate (62) through the reinforcing rod (64), the sewing mechanism (65) is arranged on the left side of each connecting column (63), the sewing mechanism (65) is installed on the C-shaped plate (62), the fixing plate (66) is arranged below the C-shaped plate (62), the fixing plate (66) is installed at the upper end of the workbench (1), during specific work, after the plastic woven bags are locked and cut, the sewing cylinder (61) is driven to descend through the air pump (52), make C shaped plate (62) descend to make C shaped plate (62) and fixed plate (66) will tailor the plastic woven sack clamp after tight, the plastic woven sack presss from both sides tight back, will tailor the plastic woven sack left end seam after through sewing mechanism (65), the back is sewed up to the plastic woven sack left end, it rises to drive sewing cylinder (61) through air pump (52), make C shaped plate (62) and fixed plate (66) will sew up the plastic woven sack unblock after relaxing, thereby make unloader (7) will sew up the plastic woven sack unloading after and collect.
The blanking device (7) comprises a rotating plate (71), a cross rod (72), a blanking rod (73), a blanking roller column (74) and a sliding roller (75), wherein the rotating rod is installed at the upper end of the right side of the C-shaped plate (62) through a hinge, the middle part of the rotating plate (71) is installed on the side plate (2) through the cross rod (72), the blanking rod (73) is welded at the right end of the rotating plate (71), the blanking roller column (74) is installed at the lower end of the blanking rod (73) through a bearing, the sliding roller (75) is evenly arranged on the right side of the upper end of the workbench (1) from left to right, the blanking roller is installed in the workbench (1) in a sliding fit mode, and during specific work, after the left end of a plastic woven bag is sewed, the air pump (52) is used for driving the sewing air cylinder (61) to ascend, so that the C-shaped plate (62) drives the right end of the rotating plate (71) to downwards rotate around the cross rod (72), so that the blanking roller column (74) is attached to the sewed plastic woven bag, and the blanking roller column (74) and the sliding roller (75) collect the processed plastic woven bag.
Connecting rod (33) and bracing piece (37) are all followed right and are turned left to the outside expansion, and the structure that expands outward makes things convenient for bracing piece (37) and exhibition flat wheel (35) to strut both ends fold department about the plastic woven sack.
The arc wall has been seted up at curb plate (2) middle part, and the briquetting (43) outside is installed in the arc wall through sliding fit's mode, slides along the arc wall through briquetting (43) to carry out spacing and direction to briquetting (43).
The fixing mechanism (55) comprises three compression rods (551), three sliding sleeves (552), a damping spring (553), a movable pressing plate (554) and a fixed pressing plate (555), the compression rods (551) are uniformly welded on the left side of the lower end of the connecting plate (54) from front to back, the sliding sleeves (552) are installed at the lower ends of the compression rods (551) in a sliding fit mode, the compression rods (551) are connected with the sliding sleeves (552) through the damping spring (553), the damping spring (553) plays roles in buffering, damping and resetting, the movable pressing plate (554) is welded at the lower end of the sliding sleeve (552), the fixed pressing plate (555) is arranged below the movable pressing plate (554), the fixed pressing plate (555) is installed on the workbench (1), and during specific work, the cutting air cylinder (53) is driven to descend by the air pump (52) to enable the connecting plate (54) to downwardly press the compression rods (551), so that the movable pressing plate (554) and the fixed pressing plate (555) tightly joint the plastic woven bag, after the plastic woven bag is attached and clamped, the connecting plate (54) continues to downwards extrude the compression rod (551), so that the compression rod (551) extrudes the damping spring (553) to move towards the sliding sleeve (552), the cutting mechanism (56) continues to descend, and the plastic woven bag attached and clamped is cut and disconnected.
The cutting mechanism (56) comprises a cutting knife (561), a square sleeve (562), a knife bearing block (563) and a compression spring (564), the cutting knife (561) is installed on the right side of the lower end of a connecting plate (54) in a welding mode, the square sleeve (562) is arranged at the lower end of the cutting knife (561), the square sleeve (562) is installed inside a workbench (1), the knife bearing block (563) is installed inside the square sleeve (562) in a sliding fit mode, the lower end of the knife bearing block (563) is connected with the square sleeve (562) through the compression spring (564), during specific work, a cutting cylinder (53) is driven to descend through an air pump (52), a movable pressing plate (554) and a fixed pressing plate (555) are used for attaching and clamping a plastic woven bag, after the plastic woven bag is attached and clamped, the connecting plate (54) continues to downwardly extrude a compression rod (551), and the compression rod (551) extrudes a damping spring (553) to move towards the sliding sleeve (552), thereby make cut-off knife (561) tailor the disconnection with the plastic woven sack, tailor the in-process, through cutting off knife (561) extrusion hold sword piece (563), make hold sword piece (563) extrusion compression spring (564) to square cover (562) slip, thereby protection is cut off knife (561), avoids because falling impact force too big leads to cutting off knife (561) to damage.
Hold sword piece (563) upper end and be the V-arrangement structure, and the material of V-arrangement structure is soft materials, and the V-arrangement structure conveniently holds sword piece (563) and cuts cut-off knife (561) laminating for the plastic woven sack is tailor the disconnection easily, and protects cutting knife (561) through soft materials, reduces the condition of cutting cut-off knife (561) damage.
The lower ends of the movable pressing plate (554) and the C-shaped plate (62) are respectively provided with a soft rubber layer, the upper ends of the fixed pressing plate (555) and the fixed plate (66) are respectively and correspondingly provided with a soft rubber layer, and the soft rubber layers are used for reducing the condition that plastic woven bags are damaged when the plastic woven bags are clamped in a locking mode.
The sewing mechanism (65) comprises a rotating motor (651), a driving gear (652), a driven gear (653), a screw rod (654), a sewing head (655), a pressing sheet (656) and a guide rod (657), wherein the rotating motor (651) is installed at the front end of the inner side of a C-shaped plate (62) through a motor installation plate, the driving gear (652) is welded at the output end of the rotating motor (651), the driving gear (652) is meshed with the driven gear (653), the driven gear (653) is installed at the front end of the screw rod (654) in a welding mode, the screw rod (654) is installed on the C-shaped plate (62) through a bearing, the sewing head (655) is installed on the screw rod (654) in a threaded matching mode, the pressing sheet (656) is installed at the lower end of the sewing head (655), the guide rod (657) is arranged at the left end of the screw rod (654), and the sewing head (655) is installed on the guide rod (657) in a sliding matching mode, during operation, C shaped plate (62) presss from both sides the tight back of plastic woven sack with fixed plate (66), sew up the plastic woven sack left end through sewing head (655), sew up the in-process, it is rotatory through rotating electrical machines (651), make drive gear (652) drive driven gear (653) rotatory, thereby make lead screw (654) drive sewing head (655) sew up the plastic woven sack from the past backward, and during the sewing, compress tightly the laminating on fixed plate (66) with the plastic woven sack through preforming (656), thereby guarantee the condition that the crack can not appear in the department of sewing.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A method for manufacturing and processing a plastic woven bag is characterized by comprising the following steps: the specific manufacturing and processing method comprises the following steps:
s1, feeding: the woven bag penetrates between the connecting rod (33) and the mounting plate (36) manually, so that one end of the plastic woven bag is pulled and fed by the conveying belt (42);
s2, flattening: after the feeding is finished, the plastic woven bag is pulled to move through the conveying belt (42), so that the flattening wheel (35) flattens the folds at the upper end of the plastic woven bag, the folds at the lower end of the plastic woven bag are flattened through the supporting rod (37), and the flattened plastic woven bag is rolled and shaped through the flattening roller (32);
s3, cutting: after the plastic woven bag is flattened, the plastic woven bag is conveyed to the lower end of a cutting device (5) through a conveying belt (42), a cutting cylinder (53) is driven to descend through an air pump (52), so that a fixing mechanism (55) locks the moving plastic woven bag, and a cutting mechanism (56) cuts the plastic woven bag;
s4, sewing: after the plastic woven bag is cut, the air pump (52) drives the sewing cylinder (61) to descend, so that the C-shaped plate and the fixing plate (66) clamp and fix the cut woven bag, and the sewing mechanism (65) sews the left end of the cut woven bag;
s5, blanking: after the plastic woven bag is sewn, the air pump (52) drives the sewing air cylinder (61) to ascend, so that the rotating plate (71) drives the blanking rod (73) to rotate around the cross rod (72), and the blanking roller columns (74) and the sliding rollers (75) carry out blanking collection on the sewn woven bag;
in the course of manufacturing and processing the plastic woven bags in the steps S1-S5, the plastic woven bags are manufactured and processed by adopting a device with specific design, and the device specifically comprises a workbench (1), two side plates (2), a flattening device (3), a conveying device (4), a cutting device (5), a sewing device (6) and a blanking device (7), and is characterized in that: the front and back of the upper end of the workbench (1) are symmetrically provided with side plates (2), the left end of the inner side of each side plate (2) is provided with a flattening device (3), the right side of each flattening device (3) is provided with a conveying device (4), the right side of each conveying device (4) is provided with a cutting device (5), each cutting device (5) is installed in the middle of the upper end of the workbench (1), the right side of each cutting device (5) is provided with a sewing device (6), and the right end of each sewing device (6) is provided with a blanking device (7); wherein:
the flattening device (3) comprises a transverse plate (31), a flattening roller (32), two connecting rods (33), a connecting spring (34), two flattening wheels (35), a mounting plate (36), two supporting rods (37), two buffer springs (38) and two limiting plates (39), wherein the transverse plate (31) is mounted at the left end of the inner side of the side plate (2) in a welding mode, the flattening roller (32) is mounted at the lower end of the transverse plate (31) through a bearing, the connecting rods (33) are symmetrically mounted at the front and back of the left end of the transverse plate (31) through hinges, the middle part of each connecting rod (33) is connected with the transverse plate (31) through the connecting spring (34), the flattening wheels (35) are mounted at the lower end of each connecting rod (33) through the bearing, the mounting plate (36) is mounted at the left side of the upper end of the workbench (1), the supporting rods (37) are symmetrically mounted at the front and back of the lower end of the mounting plate (36) through pin shafts, and the right ends of the supporting rods (37) are connected with the mounting plate (36) through the buffer springs (38), a limit plate (39) is arranged outside the buffer spring (38);
the conveying device (4) comprises two conveying shafts (41), a conveying belt (42), two pressing blocks (43), two mounting cylinders (44), conveying rod columns (45) and two reset springs (46), the conveying shafts (41) are symmetrically mounted on the side plates (2) through bearings in the left-right direction, the conveying shafts (41) are connected through the conveying belt (42), the pressing blocks (43) are symmetrically mounted on the front and back of the conveying shaft (41) on the right side, the mounting cylinders (44) are arranged at the upper ends of the pressing blocks (43), the mounting cylinders (44) are welded on the side plates (2), the conveying rod columns (45) are mounted between the mounting cylinders (44) through bearings, and the lower ends of the mounting cylinders (44) are connected with the pressing blocks (43) through the reset springs (46);
the cutting device (5) comprises a U-shaped mounting plate (51), an air pump (52), a cutting air cylinder (53), a connecting plate (54), a fixing mechanism (55) and a cutting mechanism (56), the U-shaped mounting plate (51) is welded in the middle of the upper end of the workbench (1), the air pump (52) is installed on the left side of the upper end of the workbench (1) in a threaded connection mode, the cutting air cylinder (53) is installed at the lower end of the inner side of the U-shaped mounting plate (51), the connecting plate (54) is welded at the extending end of the cutting air cylinder (53), the fixing mechanism (55) is installed on the left side of the lower end of the connecting plate (54), the cutting mechanism (56) is arranged on the right side of the fixing mechanism (55), and the cutting mechanism (56) is installed at the lower end of the connecting plate (54);
the fixing mechanism (55) comprises three compression rods (551), three sliding sleeves (552), a damping spring (553), a movable pressing plate (554) and a fixed pressing plate (555), the compression rods (551) are uniformly welded on the left side of the lower end of the connecting plate (54) from front to back, the sliding sleeves (552) are installed at the lower ends of the compression rods (551) in a sliding fit mode, the compression rods (551) are connected with the sliding sleeves (552) through the damping spring (553), the movable pressing plate (554) is welded at the lower end of the sliding sleeves (552), the fixed pressing plate (555) is arranged below the movable pressing plate (554), and the fixed pressing plate (555) is installed on the workbench (1);
the sewing device (6) comprises a sewing cylinder (61), a C-shaped plate (62), three connecting columns (63), a reinforcing rod (64), a sewing mechanism (65) and a fixing plate (66), wherein the sewing cylinder (61) is installed at the lower end of the inner side of a U-shaped installation plate (51), the C-shaped plate (62) is welded at the extending end of the sewing cylinder (61), the connecting columns (63) are evenly installed at the right end of the inner side of the C-shaped plate (62) from front to back, the middle part of each connecting column (63) is connected with the upper end of the inner side of the C-shaped plate (62) through the reinforcing rod (64), the sewing mechanism (65) is arranged on the left side of each connecting column (63), the sewing mechanism (65) is installed on the C-shaped plate (62), the fixing plate (66) is arranged below the C-shaped plate (62), and the fixing plate (66) is installed at the upper end of the workbench (1);
unloader (7) are including rotor plate (71), horizontal pole (72), unloading pole (73), unloading roller column (74) and slide roller (75), the dwang leads to the hinge mount and is installed in C shaped plate (62) right side upper end, install on curb plate (2) through horizontal pole (72) rotor plate (71) middle part, rotor plate (71) right-hand member welding has unloading pole (73), unloading roller column (74) are installed through the bearing to unloading pole (73) lower extreme, workstation (1) upper end right side is turned right from a left side and is evenly equipped with slide roller (75), the unloading roller is installed in workstation (1) through sliding fit's mode.
2. The manufacturing and processing method of the plastic woven bag according to claim 1, characterized in that: the connecting rod (33) and the supporting rod (37) are both expanded from right to left to the outer side.
3. The manufacturing and processing method of the plastic woven bag according to claim 1, characterized in that: the middle of the side plate (2) is provided with an arc-shaped groove, and the outer side of the pressing block (43) is installed in the arc-shaped groove in a sliding fit mode.
4. The manufacturing and processing method of the plastic woven bag according to claim 1, characterized in that: cutting mechanism (56) is including cutting knife (561), square cover (562), hold sword piece (563) and compression spring (564), cutting knife (561) are installed on connecting plate (54) lower extreme right side through the welded mode, cutting knife (561) lower extreme is provided with square cover (562), square cover (562) are installed inside workstation (1), square cover (562) are inside to be installed through sliding fit's mode and hold sword piece (563), hold sword piece (563) lower extreme and link to each other with square cover (562) through compression spring (564).
5. The manufacturing and processing method of the plastic woven bag according to claim 4, wherein the manufacturing method comprises the following steps: the upper end of the knife bearing block (563) is of a V-shaped structure, and the V-shaped structure is made of soft materials.
6. The manufacturing and processing method of the plastic woven bag according to claim 1, characterized in that: the lower ends of the movable pressing plate (554) and the C-shaped plate (62) are respectively provided with a soft rubber layer, and the upper ends of the fixed pressing plate (555) and the fixed plate (66) are respectively correspondingly provided with a soft rubber layer.
7. The manufacturing and processing method of the plastic woven bag according to claim 1, characterized in that: the sewing mechanism (65) comprises a rotating motor (651), a driving gear (652), a driven gear (653), a screw rod (654), a sewing head (655), a pressing sheet (656) and a guide rod (657), the rotary motor (651) is installed at the front end of the inner side of the C-shaped plate (62) through a motor installation plate, a driving gear (652) is welded at the output end of the rotary motor (651), the driving gear (652) is meshed with a driven gear (653), the front end of a screw rod (654) is installed by the driven gear (653) in a welding mode, the screw rod (654) is installed on the C-shaped plate (62) through a bearing, a sewing head (655) is installed on the screw rod (654) in a thread fit mode, a pressing sheet (656) is installed at the lower end of the sewing head (655), a guide rod (657) is arranged at the left end of the screw rod (654), and the sewing head (655) is installed on the guide rod (657) in a sliding fit mode.
CN202010178210.5A 2020-03-14 2020-03-14 Method for manufacturing and processing plastic woven bag Active CN111361211B (en)

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