CN106731292B

CN106731292B - Forming equipment and method of dust removal filter bag

Info

Publication number: CN106731292B
Application number: CN201611184269.5A
Authority: CN
Inventors: 庄寒锋
Original assignee: Suzhou Rongfeng Environmental Protection Technology Co ltd
Current assignee: Suzhou Rongfeng Environmental Protection Technology Co ltd
Priority date: 2016-12-20
Filing date: 2016-12-20
Publication date: 2022-04-05
Anticipated expiration: 2036-12-20
Also published as: CN114602253A; CN114602252A; CN114602254A; CN106731292A

Abstract

The invention relates to a forming device and a method of a dust-removing filter bag, the device comprises a bag opening forming device, a bag body forming device and a bag bottom forming device, the bag body forming device comprises a wool opener, a double-layer carding machine, a wool paving machine, a needle machine, a cloth folding machine, a heat setting machine, a singeing machine, a calender, a coiling machine, a side fusion or sewing machine and a cutting machine, wherein the needle machine comprises a pre-needling machine for positioning tiled net wool on the front and back sides of base cloth and a main needling machine for needling the front and back sides of the positioned cloth, and the bag body forming device further comprises a filter bag cloth waterproof and oilproof treatment system arranged between the main needling machine and the heat setting machine. On one hand, the angle of the tensioning roller assembly can be adjusted according to the tensioning and loosening of the filter bag cloth, so that the filter bag cloth entering the cloth rolling power roller always keeps the tensioning trend, and the side part of the folded cloth is flush; on the other hand, the waterproof and oil-proof performance of the filter bag is enhanced, so that the use requirements of special users are met.

Description

Forming equipment and method of dust removal filter bag

Technical Field

The invention relates to a forming device of a dust-removing filter bag, and also relates to a forming method of the dust-removing filter bag.

Background

At present, the bag mouth, the bag body and the bag bottom of the dust-removing filter bag are all prepared by sewing and connecting filter material cloth by a sewing machine. Specifically, the filter cloth is first rolled into a cylindrical shape, and the two joined edges are directly sewn together.

In order to realize the processing of the bag body, in the prior art, the adopted forming equipment comprises a velvet material opener, a double-layer carding machine, a velvet paving machine, a needling machine, a cloth folding machine, a heat setting machine, a singeing machine, a calender, a coiling machine, a side fusion or sewing machine and a cutting machine, wherein the common cloth folding machine mainly comprises a cloth folding frame, a cloth swinging roller component which is positioned at the front end part of the cloth folding frame and can rotate around the horizontal axis direction, and a driving mechanism for driving the cloth swinging roller component to swing left and right around the front end part of the cloth folding frame, wherein the driving mechanism comprises an eccentric wheel and a swing rod, two end parts of the swing rod are respectively arranged on the eccentric wheel and the cloth swinging roller component, and the cloth folding device mainly utilizes the motion of the eccentric wheel to enable the cloth swinging roller component to swing back and forth around the front end part of the cloth folding frame so as to realize the back and forth folding and stacking of cloth.

However, in practical operation, since the moving speed of the cloth during the processing of the cloth is difficult to be controlled uniformly (one section of the cloth is in a loose state, and the other section of the cloth is in a tensioned state), the outer side of the cloth after being folded cannot be arranged in a flush manner, which brings great inconvenience to the subsequent operation.

Meanwhile, with the widespread use of filter bags, performance requirements such as water and oil repellency are becoming higher and higher. However, since the conventional filter bag does not have such a function, it is necessary to perform a water-and oil-repellent treatment when the filter bag cloth is formed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide improved forming equipment for the dust-removing filter bag, wherein on one hand, the angle of the tensioning roller assembly can be adjusted according to the tensioning and loosening of the filter bag cloth, so that the filter bag cloth entering a cloth rolling power roller always keeps the tensioning trend, and the side part of the folded cloth is arranged in a flush manner; on the other hand, the waterproof and oil-proof treatment system is arranged, so that the waterproof and oil-proof performance of the filter bag is enhanced, and the use requirements of special users are met.

The application also relates to a forming method of the dust-removing filter bag, the filter bag processed by the method can prevent the damage of the annular steel ring to the bag opening and improve the strength of the sewing part of the bag opening and the bag body under the scouring of high-pressure airflow, the service life of the filter bag is prolonged, meanwhile, the connection part of the bag bottom and the bag body is ensured not to leak dust (especially under the scouring removal of the high-pressure airflow), and the falling of the bag bottom is also effectively prevented.

In order to solve the technical problems, the invention adopts the following technical scheme:

a forming device of a dust-removing filter bag comprises a bag mouth forming device, a bag body forming device and a bag bottom forming device, wherein the bag body forming device comprises a wool opener, a double-layer carding machine, a wool paving machine, a needle machine, a cloth folding machine, a heat forming machine, a singeing machine, a calender machine, a coiling machine, a side fusion or sewing machine and a cutting machine, the cloth folding machine comprises a cloth folding frame, cloth rolling power rollers with two end parts respectively arranged at the left side and the right side of the cloth folding frame, a cloth swinging roller component positioned at the front end part of the cloth folding frame and capable of rotating around the horizontal axis direction, and a driving mechanism, wherein the cloth swinging roller component swings around the front end part of the cloth folding frame back and forth, the needle machine comprises a pre-needling machine for positioning the flat-paved net wool on the front side and the back side of a base cloth and a main needling machine for needling the front side of the positioned cloth, the bag body forming device also comprises a water-proofing and oil-proofing treatment system arranged between the cloth folding machine and the heat forming machine, the cloth folding machine also comprises a tension roller assembly which is arranged on the cloth folding frame through a horizontally arranged pivot in a rotating way; one end part of the telescopic rod is rotatably arranged on the tensioning roller assembly, and the other end part of the telescopic rod is rotatably arranged on the plaiting frame; and the limiting assembly is used for limiting the rotation angle of the tension roller assembly, wherein the tension roller assembly is driven by the telescopic rod to rotate around the pivot shaft so as to keep the filter bag cloth entering the cloth rolling power roller always in a tension trend.

Preferably, the tensioning roller assembly comprises brackets which are respectively arranged on the left side and the right side of the cloth folding frame in a rotating mode from the middle portion, a first tensioning roller and a second tensioning roller which are located on the front end portion and the rear end portion of each bracket and are arranged in parallel with the cloth rolling power roller, and the filter bag cloth sequentially passes through the second tensioning roller and the first tensioning roller from bottom to top and is conveyed to the cloth rolling power roller from the bottom of the first tensioning roller upwards and forwards.

Preferably, two telescopic rods are arranged and are respectively positioned at two sides of the cloth folding frame; two end parts of the telescopic rod are respectively connected to the bracket and the cloth folding frame which are positioned on the same side; the driving mode of the telescopic rod can be hydraulic pressure, pneumatic pressure or electric.

Preferably, the first tensioning roller and the second tensioning roller are respectively arranged on the bracket in a way of rotating around the axis direction of the first tensioning roller and the second tensioning roller.

Preferably, the first tension roller and the second tension roller are movably adjustably provided on the bracket in a length direction of the bracket.

According to a specific implementation and preferable aspect of the invention, the limiting assembly comprises a positioning plate fixedly arranged on one side of the plaiting frame, a first blocking part and a second blocking part which extend outwards horizontally from the outer side of the positioning plate and are arranged at intervals, and a limiting rod which is fixed on the pivot and is positioned between the first blocking part and the second blocking part, wherein the rotation of the tensioning roller assembly is limited by the interference of the limiting rod and the first blocking part or the second blocking part.

Preferably, the limiting assembly further comprises a connecting rod for fixedly connecting the outer end portions of the first blocking portion and the second blocking portion, wherein the first blocking portion, the second blocking portion and the connecting rod form a moving space for the limiting rod to swing.

Preferably, the cloth swinging roller assembly comprises cloth swinging rollers arranged in parallel with the cloth rolling power roller and roller frames which are positioned at two end parts of the cloth swinging rollers, and the upper end parts of the roller frames are rotatably connected with the left side and the right side of the front end part of the cloth folding frame through pivots.

According to a specific implementation and a preferable aspect of the invention, the driving mechanism comprises an eccentric wheel with a horizontal axis, a swing rod with two end parts respectively connected with the eccentric wheel and the roller frame, and a motor and a speed reducer which are arranged on the cloth folding frame and are used for driving the eccentric wheel to rotate.

Preferably, the cloth-winding power roller moves synchronously with the eccentric wheel. So that both movements share one motor.

Preferably, the cloth swinging roller rotates around the axis direction of the cloth swinging roller; the cloth swinging rollers are provided with a plurality of cloth swinging rollers and are movably and adjustably arranged on the roller frame along the length of the roller frame.

According to a specific implementation and preferable aspect of the invention, the filter bag cloth waterproof and oil-proof treatment system comprises a treatment frame, a soaking unit, a squeezing unit and a drying unit, wherein the soaking unit comprises a soaking tank, a plurality of conveying rollers, the plurality of conveying rollers form a squeezing roller assembly for squeezing the filter bag cloth, a conveying roller assembly for conveying the filter bag cloth and a filtering roller assembly for draining soaking liquid on the surface of the filter bag cloth, the squeezing roller assembly comprises positioning seats, two squeezing rollers and hanging ropes, the positioning seats are located above the liquid level of the soaking tank and located at two ends of the soaking tank, the two squeezing rollers are located in the solution of the soaking tank, the end portions of the squeezing rollers are hung on the positioning seats respectively, the squeezing rollers extend along the length direction of the soaking tank, and the two squeezing rollers are in contact with each other to form a squeezing area, and the filter bag cloth passes through the squeezing area.

Preferably, the rope wheel is installed on the positioning seat, the hanging rope is hung on the rope wheel from the middle part, and the two end parts of the hanging rope respectively extend downwards and outwards and are connected to the shaft end of the extrusion roller. The squeeze roll is arranged in a mode of being abutted relatively under the action of self weight, and the position of the squeeze roll can be automatically adjusted through the tension force of the filter bag cloth, so that the filter bag cloth edge soaking and edge squeezing operations are facilitated.

Preferably, the squeeze roll assemblies are in multiple groups and are arranged side by side. So that the filter bag cloth can be repeatedly extruded and soaked for a plurality of times, and the soaking effect of the filter bag cloth is improved.

According to a specific embodiment and preferred aspect of the invention, the transfer roller assembly comprises a first transfer roller positioned in the bath solution and transferring the two adjacent sets of squeeze roller assemblies into engagement, and the filter bag cloth is transferred from the previous set of squeeze roller assemblies to the next set of squeeze roller assemblies through the first transfer roller after being squeezed by the previous set of squeeze roller assemblies.

Preferably, the transfer roller assembly further comprises a second transfer roller for transferring the filter bag cloth of the last group of squeeze roller assemblies into the water filtering roller assemblies, the second transfer roller being located above the immersion bath solution.

Preferably, the water filtering roller assembly is positioned above the liquid level of the immersion liquid tank and is positioned at one side of the immersion liquid tank, which enters the extrusion unit and forms the material inlet. Preventing the squeezed slurry from dripping onto the drained filter bag cloth.

Further, the water filtering roller assembly comprises a plurality of water filtering rollers which are arranged from bottom to top, side by side and at intervals. The specific water filtration is mainly to enable the filter bag cloth to be relatively tensioned through a plurality of rollers, filter the surface bright water as far as possible and fall back into the immersion liquid tank.

According to a specific implementation and a preferable aspect of the invention, the squeezing unit comprises a first squeezing roller and a second squeezing roller which are positioned above the immersion liquid tank, and a driving mechanism for driving the first squeezing roller and the second squeezing roller to relatively approach or move away, wherein the first squeezing roller and the second squeezing roller are respectively and rotatably arranged around the axes thereof.

Preferably, the first squeezing roller is fixed on the processing frame, the second squeezing roller is movably arranged on the processing frame, the first squeezing roller and the second squeezing roller are arranged in a rotating mode in opposite directions, and the driving mechanism is used for driving the second squeezing roller to move towards or away from the first squeezing roller.

Preferably, the driving mechanism comprises connecting plates which are respectively positioned at two sides of the processing frame, one end of each connecting plate is rotatably arranged on the processing frame, two end parts of each connecting plate are respectively rotatably arranged on the other end part of each connecting plate and a telescopic rod on the processing frame, two shaft end parts of the second squeezing rollers are arranged on the connecting plates, and when the telescopic rods stretch, the second squeezing rollers are driven to move away from or close to the first squeezing rollers.

According to a specific implementation and preferred aspect of the invention, the side fusing or sewing machine comprises a bag cloth guiding device, the bag cloth guiding device comprises a support, a left arc-shaped guide plate and a right arc-shaped guide plate, the left arc-shaped guide plate and the right arc-shaped guide plate are mounted on the support and are used for folding and guiding bag cloth from two sides to the middle part, the left arc-shaped guide plate and/or the right arc-shaped guide plate can be arranged on the support in an inward closing mode and can be opened outwards, the bag cloth guiding device further comprises a supporting seat arranged between the support and a bag cloth unwinding mode, and a U-shaped supporting portion arranged on the supporting seat and provided with an upward opening, and the U-shaped supporting portion is arranged on the supporting seat in an adjustable mode along the vertical direction.

Preferably, the support includes the base, set up on the base and along the frame that encloses that the sack cloth moving direction extends, and the lower tip of left arc deflector and right arc deflector is fixed respectively and is enclosed the bottom of frame, the upper end partially overlap the setting from top to bottom respectively, and one side of sack cloth is located between the left arc deflector and the right arc deflector that overlap, and the opposite side is located the left arc deflector or the right arc deflector that overlap the bottom.

Preferably, two end parts of the left arc-shaped guide plate and the right arc-shaped guide plate respectively protrude out of two end parts of the enclosure frame. Is beneficial to the forming and guiding of the bag strip.

According to a specific implementation and preferred aspect of the invention, a horizontally arranged elongated hole is formed at the top of the enclosure frame, a connecting part is arranged on the left arc-shaped guide plate, and the bag cloth guide device further comprises a locking bolt piece which can be movably arranged in the elongated hole and is connected with the connecting part. The left arc-shaped guide plate and the right arc-shaped guide plate are folded inwards or unfolded outwards through the movement adjustment of the locking bolt piece.

Preferably, enclose the frame and be the rectangle, the base is including the cross that is located the bottom, be located the middle part of cross and the support that can stretch out and draw back from top to bottom and adjust, encloses the frame and fixes at the top of support, and along with the flexible up-and-down motion of support.

Further, the supporting seat comprises a cross support positioned at the bottom, a sleeve which is positioned in the middle of the cross support and can be adjusted in an up-and-down telescopic mode, and the U-shaped supporting portion is fixed to the top of the sleeve from the bottom and moves up and down along with the telescopic expansion of the sleeve.

Furthermore, the cross frame and the cross support are connected through a connecting plate, the connecting plate is provided with a long groove along the length direction of the connecting plate, and the support legs of the cross frame and the cross support, which are positioned on the same line, are respectively provided with a bolt piece which can be movably arranged in the long groove and is in locking connection with the support legs.

Preferably, the left arc-shaped guide plate and the right arc-shaped guide plate are respectively formed by bending stainless steel sheets. By the arrangement of the steel sheet, the strength of the bag cloth is guaranteed, the adjustment requirement can be met, and meanwhile, the surface is smooth, so that the bag cloth is conveyed.

According to another embodiment and preferred aspect of the present invention, a contact stopper is further provided on the U-shaped support portion, which is adjustable in a vertical direction and is provided at one side or both sides of the U-shaped support portion, and the contact stopper gives a warning message when the side edge of the sack cloth gradually gathered comes into contact with the contact stopper.

Preferably, the contact limiter comprises a sleeve body sleeved on the vertical part of the U-shaped supporting part; the locking bolt is used for locking the sleeve body and the U-shaped supporting part relatively; one end part of the limiting contact rod is fixed on the sleeve body, the other end part of the limiting contact rod horizontally extends to the middle part of the U-shaped supporting part, and the signal processor can receive the contact information of the limiting contact rod and send out a warning signal.

According to another embodiment and preferred aspect of the present invention, the cutting machine comprises a buffer device for continuously cutting the filter bag and an auxiliary discharge device after cutting, wherein the buffer device comprises a fixed frame positioned between a conveying roller of the sewing or fusing device and a feed roller of the cutting machine, a plurality of guide rollers positioned on the fixed frame and arranged parallel to the conveying roller, a buffer frame positioned below the plurality of guide rollers and having one end portion arranged on the fixed frame in a manner of rotating around a horizontally arranged pivot, a buffer roller arranged on the buffer frame and parallel to the guide rollers, a driving mechanism for driving the buffer frame to rotate around the pivot, a control system for controlling the operation of the driving mechanism, and a sensing system capable of receiving cutting information of the cutting machine and feeding back to the control system, wherein the control system controls the operation of the control system according to information fed back by the sensing system, when the filter bag strip is conveyed, the buffer roller is arranged close to the guide roller; when the filter bag strip is cut, the feed roller stops rotating, the induction system feeds information back to the control system, the cache roller and the guide roller are gradually far away from each other until the feed roller returns to rotate after cutting is finished, and the driving mechanism drives the cache frame to rotate in the opposite direction again, so that the cache roller is gradually reset.

Preferably, each guide roller is rotatably arranged on the fixed frame around the axis direction of the guide roller.

Preferably, a plurality of guide rollers are arranged side by side.

Preferably, the buffer roller has a plurality of buffer rollers, and is arranged opposite to the guide roller in a staggered mode.

Preferably, the buffer device further comprises a limit protection mechanism for the rotation angle of the buffer frame.

According to a specific implementation and preferred aspect of the invention, the position limiting protection mechanism comprises a signal receiver fixedly arranged on the fixed frame and a signal emitter fixedly arranged on the cache frame, and when the cache frame rotates and the signal emitter is aligned with the signal receiver, the control system controls the driving mechanism to drive the cache frame to rotate and gradually reset.

Preferably, the fixing frame comprises a supporting part vertically arranged on the ground and positioned on two sides, and horizontal installation parts respectively transversely arranged at the tops of the supporting parts and extending along the length direction of the filter bag strips, the guide rollers are symmetrically arranged on the horizontal installation parts on the two sides relative to the supporting parts, and the signal receiver is fixedly arranged on the lower part of the supporting part.

Preferably, the buffer storage frame comprises supporting rods which are positioned inside the fixing frame and positioned on two sides of the filter bag strip, and two end parts of the buffer storage roller are respectively arranged on the supporting rods on the two sides and are respectively arranged in a rotating mode around the axis direction of the buffer storage roller.

Furthermore, the support rod comprises a horizontal part extending along the length direction of the filter bag strip, a bent part bent downwards from one end of the horizontal part, the pivot is arranged at the lowest end of the bent part, and the driving mechanism is arranged at the other end of the horizontal part.

Furthermore, the driving mechanism is a telescopic rod, and the driving mode is electric, pneumatic or hydraulic.

According to a specific implementation and preferred aspect of the invention, the auxiliary discharging device and the working platform are respectively located on two sides of a conveying belt for conveying the cut filter bags, the auxiliary discharging device comprises a positioning frame, a deflector rod assembly and a driving mechanism, the deflector rod assembly is arranged on the positioning frame in a manner of swinging back and forth along the width direction of the conveying belt, the driving mechanism is used for driving the deflector rod assembly to swing back and forth, the deflector rod assembly is located above the side of the conveying belt, and when the deflector rod assembly swings, the deflector rod assembly can convey the cut filter bags on the conveying belt to the working platform.

Preferably, the driving lever assembly comprises a positioning rod which extends along the length direction of the conveying belt and is rotatably arranged on the positioning frame around the axis direction of the positioning rod, and a stirring unit which is distributed at intervals along the length direction of the positioning rod and is used for stirring and conveying the filter bag to the working platform from the conveying belt.

According to a particular embodiment and preferred aspect of the invention, each toggle unit comprises a sliding sleeve movably adjustably arranged on the positioning rod; the upper end part of the deflector rod is fixed on the sliding sleeve, and the lower end part of the deflector rod extends downwards; the shifting block is arranged at the lower end of the shifting lever, and the shifting block can be adjusted and arranged at the lower end of the shifting lever in a manner of moving up and down along the length direction of the shifting lever.

Preferably, the shifting block is arranged with gradually reduced thickness from top to bottom.

Preferably, the longitudinal section of the shifting block is in an inverted trapezoid shape.

Furthermore, the lower part of the shifting lever is provided with a locking tooth, and the shifting unit also comprises a lock tongue which is movably arranged on the shifting block and is matched with the locking tooth, and a locking piece which is used for locking the lock tongue and the shifting block relatively.

Further, the inside cavity of shifting block sets up, and the unit of stirring still includes and is located the inside both ends of shifting block and contradicts and make the spring bolt keep to the elastic component of lock tooth motion trend between shifting block inner wall and spring bolt.

Preferably, the locking piece comprises a locking ring fixedly arranged on the shifting block and allowing the locking tongue to penetrate through, and a bolt which is in threaded connection with the locking ring and vertically abutted against the locking tongue, wherein a pulling head is arranged at the outer end part of the locking tongue.

According to another embodiment and preferred aspect of the present invention, the driving mechanism includes a connecting sleeve fixed to the positioning rod; the upper end part of the connecting rod is fixed on the connecting sleeve, and the lower end part of the connecting rod extends downwards; the two end parts are respectively connected with the lower end part of the connecting rod and the telescopic rod on the positioning frame, wherein the telescopic rod drives the positioning rod to rotate.

Preferably, the number of the driving mechanisms is three, and the driving mechanisms are respectively distributed and arranged at the middle part and the two end parts of the positioning rod.

In addition, the positioning frame comprises a vertical rod which is vertically arranged on one side of the conveying belt and is positioned at two end parts of the conveying belt, and horizontal rods which respectively extend from the top of the vertical rod to the other side of the conveying belt, wherein positioning seats are respectively arranged at the extending tail ends of the horizontal rods, and the deflector rod assembly is arranged on the positioning seats.

Furthermore, the positioning frame also comprises a connecting rod transversely arranged between the two vertical rods.

The other technical scheme of the invention is as follows: a forming method of a dust removal filter bag adopts the forming equipment, and comprises the following specific steps:

1) forming a bag opening:

a) sewing one end parts of the outer layer cloth and the inner layer cloth which are respectively formed into the pocket mouth shape on two sides of the felt ring respectively, wherein one end part of the outer layer cloth is sewn inside the felt ring, and one end part of the inner layer cloth is sewn on the inner wall of the felt ring;

b) the annular steel ring is plugged into the outer layer cloth and abutted against the inner side of the felt ring, then the other end of the inner layer cloth is plugged into the outer layer cloth from the inner part of the felt ring, and the annular steel ring is closed and sewn on the inner side of the felt ring and between the outer layer cloth and the inner layer cloth;

2) and forming a bag body:

a) the method comprises the following steps that (1) the wool materials are loosened by a loosening machine and then enter a double-layer carding machine, double-layer thin netted wool is formed by the double-layer carding machine, then the double-layer thin netted wool is respectively paved on the front side and the back side of base cloth by a wool paving machine, then the base cloth enters a pre-needling machine for needling positioning, then the front side and the back side of the base cloth are needled by a main needling machine, and the base cloth is folded by a cloth folding machine;

b) soaking and drying the folded cloth in a waterproof and oilproof treatment system, and then conveying the cloth to a heat setting machine for heat setting treatment, wherein the temperature of the cloth is controlled at 220-240 ℃;

c) after heat setting, adding the cloth into a singeing machine, singeing one side surface of the cloth by open fire, then performing calendaring treatment on the singed surface by a heating roller, and coiling and forming by a coiling machine;

d) bending the filter bag cloth formed by coiling from two sides to the middle part to form a straight cylindrical bag strip, and fixedly connecting the two sides of the filter bag cloth by a side fusion or sewing machine;

e) cutting according to the specified size;

3) bag bottom forming

a) The straight cylindrical sleeve body is formed by the fabric for preparing the bag body;

b) bending one end part of the sleeve body inwards to form a covered edge, then sewing the periphery of the covered edge between the covered edge and the sleeve body by adopting a back cover, and simultaneously positioning the back cover in the sleeve body;

4) sewing, fusing or ultrasonically welding three layers of one end part of the inner layer cloth and the outer layer cloth in the step 1) and one end part of the bag body together, and then sewing, fusing or ultrasonically welding the other end part of the bag body and the other end part of the sleeve body in the step 3).

Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:

on one hand, the angle of the tensioning roller assembly can be adjusted according to the tensioning and loosening of the filter bag cloth, so that the filter bag cloth entering the cloth rolling power roller always keeps the tensioning trend, and the side part of the folded cloth is flush; on the other hand, the waterproof and oil-proof treatment system is arranged, so that the waterproof and oil-proof performance of the filter bag is enhanced, and the use requirements of special users are met.

Drawings

The invention is described in further detail below with reference to the figures and specific examples.

FIG. 1 is a simplified schematic view of a dust filter bag forming apparatus according to the present invention;

FIG. 2 is a schematic structural diagram of the cloth folding machine in FIG. 1;

FIG. 3 is a schematic view of the water and oil repellent treatment system of FIG. 1;

FIG. 4 is a schematic view of the structure of the pouch cloth guide of FIG. 1;

FIG. 5 is a schematic structural diagram of a buffer device for continuously cutting the filter bag in FIG. 1;

FIG. 6 is a schematic top view of the auxiliary discharge device of FIG. 1;

FIG. 7 is a left side schematic view of FIG. 6;

FIG. 8 is an enlarged view taken at A in FIG. 7;

wherein: firstly, folding a cloth machine; 1. a cloth folding frame; 2. a cloth rolling power roller; 3. a cloth swinging roller assembly; 30. a cloth arranging roller; 31. a roller frame; 4. a drive mechanism; 40. an eccentric wheel; 41. a swing rod; 42. a motor; 43. a speed reducer; 5. a tension roller assembly; 50. a support; 51. a first tension roller; 52. a second tension roller; 6. a telescopic rod; 7. a limiting component; 70. positioning a plate; 71. a first blocking portion; 72. a second blocking portion; 73. a limiting rod; 74. a connecting rod; a, b, a pivot; B. a filter bag cloth;

secondly, a filter bag is distributed with a water-proof and oil-proof treatment system; 1A, a processing rack; 2A, a soaking unit; 20A, an immersion tank; 21A, a squeeze roll assembly; 210A, a positioning seat; 211A, a squeezing roller; 212A, hanging a rope; 213A, squeeze roll; 22A, a conveying roller assembly; 221A, a first conveying roller; 222A, a second conveying roller; 23A, a water filtering roller assembly; 230A, a water filtering roller; 3A, an extrusion unit; 31A, a first squeeze roll; 32A, a second extrusion roller; 33A, a driving mechanism; 330A, a connecting plate; 331A, a telescopic rod; B. a filter bag cloth;

thirdly, a bag cloth guiding device; 1B, a bracket; 10B, a base; 100B, a cross; 101B, a bracket; 11B, enclosing a frame; 110B, elongated holes; 2B, a left arc-shaped guide plate; 3B, a right arc-shaped guide plate; 4B, a supporting seat; 40B, a cross brace; 41B, a sleeve; a 5B, U type support; 6B, locking bolt pieces; 7B, a connecting plate; 70B, a long groove; 8B, bolt pieces; 9B, a contact limiter; 90B, a sleeve body; 91B, a locking bolt; 92B, a limit feeler lever; a. a support leg; B. a bag cloth;

fourthly, a cache device; 1C, conveying rollers; 2C, a feeding roller; 3C, fixing a frame; 30C, a support part; 31C, a horizontal mounting part; 4C, a guide roller; 5C, a cache frame; 50C, a support rod; 500C, a horizontal part; 501C, a bending part; 6C, a buffer roller; 7C, a driving mechanism (telescopic rod); 8C, a limiting protection mechanism; 80C, a signal receiver; 81C, a signal transmitter; a. a pivot; b. a long hole; t, filter bag strips;

fifthly, assisting the discharging device; 10D, a positioning frame; 100D, vertical poles; 101D, a horizontal rod; 102D, a connecting rod; 11D, a deflector rod assembly; 110D, a positioning rod; 111D, a poking unit; a. a sliding sleeve; b. a deflector rod; c. shifting blocks; e. locking teeth; f. a latch bolt; g. a locking member; g1, lock ring; g2, bolt; h. an elastic member; i. drawing the head; 12D, a drive mechanism; 120D, connecting sleeves; 121D, a connecting rod; 122D, a telescopic rod; 13D, positioning seats; 2D, a working platform; 3D, conveying a belt; D. and (5) filtering the bags.

Detailed Description

As shown in fig. 1 to 8, the forming apparatus for a dust-removing filter bag provided in this embodiment includes a bag mouth forming device, a bag body forming device, and a bag bottom forming device, where the bag body forming device includes a pile opener, a double-layer carding machine, a pile paving machine, a needle loom, a cloth folder, a heat setting machine, a singeing machine, a calender, a coiler, a side fusion or sewing machine, and a cutting machine, where the needle loom includes a pre-needling machine for positioning flat net piles on the front and back sides of a base fabric and a main needling machine for needling the front and back sides of the positioned fabric, the bag body forming device further includes a water-proof and oil-proof treatment system for the filter bag cloth disposed between the pile folder and the heat setting machine, and a treatment system for adsorbing and recovering piles on both sides of a carding roller of the double-layer carding machine to the pile opener.

The cloth folding machine comprises a cloth folding frame 1, cloth rolling power rollers 2, a cloth swinging roller assembly 3 and a driving mechanism 4, wherein the two end parts of the cloth rolling power rollers are respectively arranged on the left side and the right side of the cloth folding frame 1, the cloth swinging roller assembly 3 is positioned at the front end part of the cloth folding frame and can rotate around the horizontal axis direction, the cloth swinging roller assembly 3 swings back and forth around the front end part of the cloth folding frame 1, and the cloth folding device further comprises a tensioning roller assembly 5 which is rotatably arranged on the cloth folding frame 1 through a horizontally arranged pivot a; one end part is rotationally arranged on the tensioning roller assembly 5, and the other end part is rotationally arranged on the telescopic rod 6 on the plaiting frame 1; and a limiting component 7 for limiting the rotation angle of the tension roller component 5, wherein the tension roller component 5 is driven to rotate around the pivot a by the expansion and contraction of the telescopic rod 6 to keep the filter bag cloth B entering the cloth rolling power roller 2 always in a tension trend.

The tensioning roller component 5 comprises a bracket 50 which is respectively arranged at the left side and the right side of the cloth folding frame 1 from the middle part in a rotating way, a first tensioning roller 51 and a second tensioning roller 52 which are positioned at the front end part and the rear end part of the bracket 50 and are arranged in parallel with the cloth rolling power roller 2, and the filter bag cloth B sequentially passes through the second tensioning roller 52 and the first tensioning roller 51 from bottom to top and is conveyed to the cloth rolling power roller 2 from the bottom of the first tensioning roller 51 to the top.

The first tension roller 51 and the second tension roller 52 are provided on the bracket 50 so as to be rotatable about their axes.

The first tension roller 51 and the second tension roller 52 are movably and adjustably provided on the bracket 50 along the length direction of the bracket 50 (an elongated chute is formed on the bracket 50, and the ends of the first tension roller 51 and the second tension roller 52 are slidably provided in the elongated chute, respectively, and then the bracket 50 is relatively locked with the first tension roller 51 and the second tension roller 52 by an external connection member, so that the distance between the first tension roller 51 and the second tension roller 52 can be adjusted according to actual needs).

Two telescopic rods 6 are arranged and are respectively positioned at two sides of the cloth folding frame 1; the two end parts of the telescopic rod 6 are respectively connected to the bracket 50 and the cloth folding frame 1 which are positioned on the same side; the driving mode of the telescopic rod 6 can be hydraulic, pneumatic or electric.

The limiting assembly 7 comprises a positioning plate 70 fixedly arranged on one side of the cloth folding frame 1, a first blocking part 71 and a second blocking part 72 which extend outwards horizontally from the outer side of the positioning plate 70 and are arranged at intervals, and a limiting rod 73 which is fixed on the pivot a and is positioned between the first blocking part 71 and the second blocking part 72, wherein the rotation of the tensioning roller assembly 5 is limited by the interference of the limiting rod 73 and the first blocking part 71 or the second blocking part 72.

In this example, the limiting assembly 7 further includes a connecting rod 74 for fixedly connecting outer end portions of the first blocking portion 71 and the second blocking portion 72, wherein the first blocking portion 71, the second blocking portion 72, and the connecting rod 74 form a moving space for the limiting rod 73 to swing.

Meanwhile, the limiting components 7 can be arranged on one side of the cloth folding frame 1 and can also be symmetrically arranged on two sides of the cloth folding frame 1.

The cloth swinging roller assembly 3 comprises a cloth swinging roller 30 arranged in parallel with the cloth rolling power roller 2, and a roller frame 31 which is positioned at two end parts of the cloth swinging roller 30, and the upper end part of the roller frame is rotationally connected with the left side and the right side of the front end part of the cloth folding frame 1 through a pivot b, wherein the cloth swinging roller 30 rotates around the self axial lead direction; the cloth swinging roller 30 has a plurality of pieces and is movably and adjustably arranged on the roller frame 31 along the length of the roller frame 31.

The driving mechanism 4 comprises an eccentric wheel 40 with a horizontal axis, a swing rod 41 with two ends respectively connected with the eccentric wheel 40 and the roller frame 31, and a motor 42 and a speed reducer 43 which are arranged on the cloth folding frame 1 and are used for driving the eccentric wheel 40 to rotate.

The cloth-winding power roller 2 moves synchronously with the eccentric wheel 40. So that both movements share one motor 42.

The filter bag cloth waterproof and oilproof processing system comprises a processing frame 1A, a soaking unit 2A, a squeezing unit 3A and a drying unit (not shown in the figure), wherein the soaking unit 2A comprises a soaking tank 20A, a plurality of conveying rollers which form a squeezing roller assembly 21A for squeezing a filter bag cloth B, a conveying roller assembly 22A for conveying the filter bag cloth B and a filter water roller assembly 23A for draining soaking liquid on the surface of the filter bag cloth B, the squeezing roller assembly 21A comprises a positioning seat 210A which is positioned above the liquid level of the soaking tank 20A and positioned at two ends of the soaking tank 20A, two squeezing rollers 211A positioned in the solution of the soaking tank 20A and hanging ropes 212A which respectively suspend the ends of the squeezing rollers 211A on the positioning seat 210A, the squeezing rollers 211A extend along the length direction of the soaking tank 20A, and the two squeezing rollers 211A are in contact with each other to form a squeezing area, the filter bag cloth B passes through the pressing area.

A rope pulley 213A is mounted on the positioning seat 210A, and a hanging rope 212A is hung on the rope pulley 213A from the middle portion, and both end portions extend downward and outward and are connected to the shaft end of the squeezing roller 211A. Squeeze roll 211A contradicts the setting relatively under the effect of dead weight, through the position that can be according to filter bag cloth B's tensile force automatic adjustment squeeze roll 211A to be convenient for filter bag cloth B limit soak, the extruded operation in limit.

The squeeze roll assemblies 21A have multiple sets and are arranged side by side. So that the filter bag cloth B can be extruded and soaked repeatedly for many times, and the soaking effect of the filter bag cloth B is improved.

The conveying roller assembly 22A comprises a first conveying roller 221A which is positioned in the solution of the immersion tank and conveys and connects two adjacent groups of squeezing roller assemblies 21A, and a second conveying roller 222A which is used for conveying the filter bag cloth B of the last group of squeezing roller assemblies 21A into the water filtering roller assembly 23A, wherein the filter bag cloth B is conveyed into the next group of squeezing roller 211A assembly through the first conveying roller 221A after being squeezed by the former group of squeezing roller assemblies 21A; the second conveyance roller is located above (laterally above) the solution in the immersion liquid tank 20A.

The water filtering roller assembly 23A is positioned above the liquid level of the immersion liquid tank 20A and is positioned at one side of the immersion liquid tank 20A, which enters the extrusion unit 3A and forms a material inlet. Preventing the squeezed slurry from dripping onto the drained filter bag cloth.

In this example, the filter roll assembly 23A includes a plurality of filter rolls 230A arranged side by side from bottom to top at intervals. The specific drainage is mainly to make the filter bag cloth B relatively tense through a plurality of rollers, filter the surface bright water as far as possible and fall back into the immersion liquid tank 20A.

The pressing unit 3A includes a first pressing roller 31A and a second pressing roller 32A located above the immersion liquid tank 20A, and a driving mechanism 33A for driving the first pressing roller 31A and the second pressing roller 32A relatively close to or away from each other, wherein the first pressing roller 31A and the second pressing roller 32A are respectively rotatably provided around their axes.

The first squeezing roller 31A is fixed to the processing rack 1A, the second squeezing roller 32A is movably provided on the processing rack 1A, and the first squeezing roller 31A and the second squeezing roller 32A are rotatably provided in opposite directions. In this example, the first squeezing roller 31A and the second squeezing roller 32A rotate in opposite directions as shown by the arrows at the first squeezing roller 31A and the second squeezing roller 32A in the figure, so as to facilitate the movement of the squeezed filter bag cloth B toward the drying unit.

The driving mechanism 33A is provided for driving the second pressing roll 32A to move closer to or away from the first pressing roll 31A.

The driving mechanism 33A includes a connecting plate 330A disposed on both sides of the processing rack and having one end rotatably disposed on the processing rack 1A, and a telescopic rod 331A having two ends rotatably disposed on the other end of the connecting plate 330A and the processing rack 1A, respectively, and the two axial ends of the second squeeze roller 32A are disposed on the connecting plate 330A, and when the telescopic rod 331A is extended and retracted, the second squeeze roller 32A is driven to move away from or close to the first squeeze roller 31A.

The telescopic rod 331A is hydraulic, pneumatic or electric, and the telescopic principle of the telescopic rod 331A is a conventional arrangement, which is not described in detail herein.

Bag cloth guider third, it includes support 1B, install on support 1B and be used for folding up the left arc deflector 2B and the right arc deflector 3B of direction from both sides to the middle part with bag cloth B, wherein left arc deflector 2B and/or right arc deflector 3B can inwards draw close and outwards open setting on support 1B, bag cloth guider is still including setting up supporting seat 4B between support 1B and bag cloth unwinding, the setting is on supporting seat 4B and the U type supporting part 5B that the opening set up, wherein U type supporting part 5B sets up on supporting seat 4B along vertical direction adjustablely.

The stand 1B includes a base 10B, and a surrounding frame 11B provided on the base 10B and extending in the moving direction of the bag cloth B.

The base 10B includes a cross 100B at the bottom, and a bracket 101B at the middle of the cross 100B and capable of telescopic adjustment up and down.

The enclosure frame 11B is rectangular, and the enclosure frame 11B is fixed on the top of the support 101B and moves up and down along with the extension and retraction of the support 101B.

The lower tip of left side arc deflector 2B and right arc deflector 3B is fixed respectively and is enclosed the bottom of frame 11B, the upper end partially do not overlaps the setting from top to bottom, one side of bag cloth B is located between left arc deflector 2B and the right arc deflector 3B that overlaps, the opposite side is located the left arc deflector 2B or the right arc deflector 3B that overlap the bottom.

In this example, the upper end portion of the right arc-shaped guide plate 3B is positioned above the upper end portion of the left arc-shaped guide plate 2B, and forms an overlapping area through which the bag cloth B passes.

The two end parts of the left arc-shaped guide plate 2B and the right arc-shaped guide plate 3B respectively protrude out of the two end parts of the enclosure frame 11B. Is beneficial to the forming and guiding of the bag strip.

Meanwhile, the left arc-shaped guide plate 2B and the right arc-shaped guide plate 3B are respectively formed by bending stainless steel sheets. By the arrangement of the steel sheets, the strength of the bag cloth B is guaranteed, the adjustment requirement can be met, and meanwhile, the surface is smooth, so that the bag cloth B is conveyed.

In this example, a horizontally disposed elongated hole 110B is formed at the top of the surrounding frame 11B, a connecting portion (not shown, but not shown) is formed on the left arc-shaped guide plate 2B, and the bag guide further includes a lock bolt member 6B movably disposed in the elongated hole 110B and connected to the connecting portion. The left arc-shaped guide plate 2B and the right arc-shaped guide plate 3B are inwardly folded or outwardly unfolded by the movement adjustment of the locking bolt pieces 6B.

The supporting seat 4B comprises a cross brace 40B located at the bottom and a sleeve 41B located in the middle of the cross brace 40B and capable of being adjusted in a vertically telescopic mode, and the U-shaped supporting portion 5B is fixed to the top of the sleeve 41B from the bottom and moves up and down along with the telescopic of the sleeve 41B.

The cross 100B and the cross brace 40B are connected through a connecting plate 7B, the connecting plate 7B is provided with an elongated slot 70B along the length direction of the connecting plate, and the support legs a of the cross 100B and the cross brace 40B which are positioned on the same line are respectively provided with bolt pieces 8B which can be movably arranged in the elongated slot 70B and are locked and connected with the support legs a.

In addition, still be equipped with the setting that can adjust along vertical direction on U type supporting part 5B and at the contact stopper 9B of one side or both sides of U type supporting part 5B, in case the bag cloth B side that draws in gradually touches with contact stopper 9B, contact stopper 9B sends alarm information.

Specifically, the contact limiter 9B includes a sleeve body 90B sleeved on the vertical portion of the U-shaped support portion 5B; a locking bolt 91B for locking the sleeve body 90B and the U-shaped support portion 5B relative to each other; a limit contact rod 92B with one end fixed on the sleeve body 90B and the other end horizontally extending to the middle part of the U-shaped supporting part 5B, and a signal processor (not shown in the figure) capable of receiving the contact information of the limit contact rod 92B and giving out a warning.

The buffer device comprises a fixed frame 3C positioned between a conveying roller 1C of the sewing or fusing equipment and a feeding roller 2C of the cutting machine, a plurality of guide rollers 4C positioned on the fixed frame 3C and arranged in parallel with the conveying roller 1C, a buffer frame 5C positioned below the guide rollers 4C and provided with one end part on the fixed frame 3C in a way of rotating around a horizontally arranged pivot shaft a, a buffer roller 6C arranged on the buffer frame 5C and arranged in parallel with the guide rollers 4C, a driving mechanism 7C used for driving the buffer frame 5C to rotate around a pivot shaft a, a control system used for controlling the operation of the driving mechanism 7C, and an induction system capable of receiving cutting information of the cutting machine and feeding back the information to the control system, wherein the control system controls the operation of the control system according to the information fed back by the induction system so as to realize the relative distance and reset of the buffer roller 6C and the guide rollers 4C, when the filter bag strip T is in transmission, the buffer roller 6C is arranged close to the guide roller 4C; when the filter bag strip T is cut, the feed roller 2C stops rotating, the induction system feeds information back to the control system, the cache roller 6C and the guide roller 4C are gradually far away from each other until the feed roller 2C resumes rotating after cutting, and the driving mechanism drives the cache frame 5C to rotate in the opposite direction again to gradually reset the cache frame (the reset refers to the reset of the cache frame 5).

The fixing frame 3C comprises a supporting portion 30C which is vertically arranged on the ground and located on two sides, horizontal installation portions 31C which are respectively transversely arranged at the tops of the supporting portions 30C and extend along the length direction of the filter bag strips T, and a plurality of guide rollers 4C are symmetrically arranged on the horizontal installation portions 31C on the two sides relative to the supporting portions 30C.

The buffer storage frame 5C comprises supporting rods 50C which are located inside the fixing frame 3C and located on two sides of the filter bag strip T, and two end portions of the buffer storage roller 6C are respectively arranged on the supporting rods 50C on two sides and are respectively arranged in a rotating mode around the axis direction of the buffer storage roller.

The support rod 50C includes a horizontal portion 500C extending along the longitudinal direction of the filter bag strip T, a bent portion 501C bent downward from one end of the horizontal portion 500C, a pivot a provided at the lowermost end of the bent portion 501C, and a driving mechanism 7C provided at the other end of the horizontal portion 500C.

Further, the horizontal portion 500C is provided with an elongated hole b, and the buffer roller 6 is provided so as to be movable in the longitudinal direction of the elongated hole b.

The driving mechanism 7C is a telescopic rod, and the driving mode is electric, pneumatic or hydraulic. In the embodiment, two or one telescopic rod is arranged, and when the telescopic rod is one, the telescopic rod is positioned at one side of the filter bag strip T; when two filter bag strips are arranged, the filter bag strips are positioned on two sides of the filter bag strip T.

Each guide roller 6C is provided on the fixed frame 3C (horizontal mounting portion 31C) so as to rotate about its own axis direction. And a plurality of guide rollers 6C are arranged side by side.

In this example, the buffer roller 6C has a plurality of rollers and is disposed to be offset from the guide roller 4C.

In addition, the buffer device further comprises a limiting protection mechanism 8C for limiting the rotation angle of the buffer frame 5C (the other end of the buffer frame 5C is limited downwards to prevent the filter bag strip T wound on the buffer roller 6C from contacting the ground).

This spacing protection machanism 8C is including fixed signal receiver 80C who establishes on mount 3C (the lower part of supporting part), signal transmitter 81C who fixes on buffer memory frame 5C (horizontal part 500), and when buffer memory frame 5C was in the rotation in-process, signal transmitter 81C aligns with signal receiver 80C, control system control actuating mechanism 7C (telescopic link) drive buffer memory frame 5C rotate, and reset gradually (that is to say buffer memory roller 6 draws close to guide roll 4C gradually).

The auxiliary discharging device (c) and the working platform (2D) are respectively positioned at two sides of the conveying belt (3D) for conveying the cut filter bag (D).

The auxiliary discharging device comprises a positioning frame 10D, a deflector rod assembly 11D and a driving mechanism 12D, wherein the deflector rod assembly 11D can be arranged on the positioning frame 1D in a back-and-forth swinging mode along the width direction of the conveying belt 3D, the driving mechanism 12D is used for driving the deflector rod assembly 11D to swing back and forth, the deflector rod assembly 11D is located above the side of the conveying belt 3D, and when the deflector rod assembly 11D swings, the deflector rod assembly 11D can convey the filter bag D cut on the conveying belt 3D to the working platform 2D in a poking mode.

Specifically, the locating rack 10D includes vertical rods 100D vertically arranged on one side of the conveyor belt 3D and located at two ends of the conveyor belt 3D, horizontal rods 101D extending from the top of the vertical rods 100D to the other side of the conveyor belt 3D, and a connecting rod 102D transversely arranged between the two vertical rods 100D, wherein locating seats 13D are arranged at the extending ends of the horizontal rods 101D, and the deflector rod assembly 11D is installed on the locating seats 13D.

The deflector rod assembly 11D comprises a positioning rod 110D extending along the length direction of the conveyor belt 3D and rotatably arranged on the positioning frame 11D (rotatably arranged on the positioning seat 13D through a bearing respectively) around the axis direction thereof, and deflector units 111D distributed at intervals along the length direction of the positioning rod 110D and used for deflecting the filter bags D from the conveyor belt to the working platform 2D.

Each toggle unit 111D comprises a sliding sleeve a movably and adjustably arranged on the positioning rod 110D; the upper end part of the shifting rod b is fixed on the upper end part and the lower end part of the sliding sleeve a and extends downwards; and the shifting block c is arranged at the lower end of the shifting lever b and can be adjusted and arranged at the lower end of the shifting lever b in a way of moving up and down along the length direction of the shifting lever b.

The shifting block c is arranged with the thickness gradually reduced from top to bottom.

Furthermore, the longitudinal section of the shifting block c is in an inverted trapezoid shape, and the shifting block c is arranged in a hollow mode.

In order to realize the movement adjustment of the shifting block c, in this example, the lower portion of the shifting rod b is provided with a locking tooth e, and the shifting unit 111D further comprises a lock tongue f movably arranged on the shifting block c and matched with the locking tooth e, and a locking piece g for locking the lock tongue f and the shifting block c relatively.

Furthermore, the toggle unit 111D further includes an elastic member h located at two ends inside the toggle block c and abutted between the inner wall of the toggle block c and the latch f to keep the latch f moving toward the lock tooth e.

The locking piece g comprises a locking ring g1 which is fixedly arranged on the shifting block c and is used for the bolt f to pass through, and a bolt g2 which is in threaded connection with the locking ring g1 and vertically butts against the bolt f, wherein the outer end part of the bolt f is provided with a drawing head i.

The driving mechanism 12D includes a connecting sleeve 120D fixed to the positioning rod 110D; a connecting rod 121D with the upper end fixed on the upper end and the lower end of the connecting sleeve 120D and extending downwards; the two ends are connected to the lower end of the connecting rod 121D and the telescopic rod 122D on the positioning frame 1D, respectively, wherein the telescopic rod 122D drives the positioning rod 110D to rotate.

In this example, three driving mechanisms 12D are provided, and are distributed at the center and both ends of the positioning rod 110D.

Meanwhile, the driving mode of the telescopic rod 122D is electric, pneumatic or hydraulic.

In this example, the method for forming the dust-removing filter bag, which uses the above-mentioned forming apparatus, comprises the following steps:

1) forming a bag opening:

2) and forming a bag body:

e) cutting according to the specified size;

3) bag bottom forming

Furthermore, in the above step, the surface of the inner layer cloth facing the center of the bag opening, the outer surface of the outer layer cloth, and the outer surfaces of the bag body and the bag bottom are all smooth surfaces after singeing treatment, and the smooth surfaces after singeing treatment are smooth surfaces.

In addition, the bag bottom can be directly formed by inward forming of the end part, far away from the bag opening, of the bag body to form a wrapping edge, then the back cover is adopted, the periphery of the back cover is sewn between the wrapping edge and the sleeve body, and meanwhile, the back cover is located inside the sleeve body.

The dust removal filter bag processed by the method has the following advantages:

1. through the arrangement of the felt ring, under the condition that the high-pressure airflow washes the dust-removing filter bag frequently, the friction between the annular steel ring and the bag opening is prevented, and the service life of the bag opening is prolonged;

2. the outer layer cloth, the inner layer cloth and the bag body are sewn together, so that the strength of the joint of the bag opening and the bag body is improved;

3. the bag bottom adopts the edge-covering design, so that dust can not leak from the joint of the bag bottom and the bag body (especially under the condition of high-pressure airflow flushing and removing), and the bag bottom can be effectively prevented from falling off;

4. the surface of the inner layer cloth facing the center of the bag opening, the outer side surface of the outer layer cloth and the outer side surfaces of the bag body and the bag bottom are smooth surfaces after singeing treatment, and the air permeability can be ensured on one hand through the smooth surfaces after singeing treatment; on the other hand, the dust is prevented from leaking.

The present invention is described in detail in order to make those skilled in the art understand the content and practice the invention, and the invention is not limited to the above embodiments, and all equivalent changes or modifications made according to the spirit of the invention should be covered by the scope of the invention.

Claims

1. A forming device of a dust-removing filter bag comprises a bag opening forming device, a bag body forming device and a bag bottom forming device, wherein the bag body forming device comprises a wool opener, a double-layer carding machine, a wool paving machine, a needle machine, a cloth folding machine, a heat forming machine, a singeing machine, a calender machine, a coiling machine, a side fusion or sewing machine and a cutting machine, the cloth folding machine comprises a cloth folding frame, cloth rolling power rollers with two end parts respectively arranged at the left side and the right side of the cloth folding frame, a cloth swinging roller component arranged at the front end part of the cloth folding frame and capable of rotating around the horizontal axis direction, and a driving mechanism, the cloth swinging roller component is arranged around the front end part of the cloth folding frame in a front-back swinging mode,

the method is characterized in that: the needle machine comprises a pre-needling machine for positioning the tiled net velvet on the front and back sides of the base cloth and a main needling machine for needling the front and back sides of the positioned cloth, the bag body forming device further comprises a filter bag cloth waterproof and oil-proof treatment system arranged between the cloth folding machine and the heat setting machine, and the cloth folding machine further comprises a tensioning roller assembly which is arranged on the cloth folding frame in a rotating manner through a horizontally arranged pivot; one end part of the telescopic rod is rotatably arranged on the tensioning roller assembly, and the other end part of the telescopic rod is rotatably arranged on the cloth folding frame; and the limiting assembly is used for limiting the rotation angle of the tension roller assembly, wherein the tension roller assembly is driven by the telescopic rod to rotate around the pivot shaft so as to keep the filter bag cloth entering the cloth rolling power roller always in a tensioning trend.

2. The dust filter bag molding apparatus according to claim 1, wherein: the limiting assembly comprises a positioning plate fixedly arranged on one side of the plaiting frame, a first blocking part and a second blocking part which extend outwards horizontally from the outer side of the positioning plate and are arranged at intervals, a limiting rod fixed on the pivot and positioned between the first blocking part and the second blocking part, and a connecting rod used for fixedly connecting the outer end parts of the first blocking part and the second blocking part, wherein the first blocking part, the second blocking part and the connecting rod form a moving space for the limiting rod to swing.

3. The dust filter bag molding apparatus according to claim 1, wherein: the waterproof and oilproof processing system of filter bag cloth include handle frame, soak unit, extrusion unit, stoving unit, wherein soak the unit including soak groove, a plurality of conveying roller have formed the squeeze roll subassembly that is used for squeezing filter bag cloth, have been used for transmitting the conveying roll subassembly of filter bag cloth and have been used for the filter roll subassembly drainage that drips filter bag cloth surface soak solution, wherein the squeeze roll subassembly is including being located immersion groove liquid level top and being located the positioning seat at immersion groove both ends, being located two squeeze rolls in the immersion groove solution and respectively will the squeeze roll tip hangs string on the positioning seat, wherein the squeeze roll along the length direction extension in immersion groove, just two squeeze rolls are inconsistent to form the extrusion region, and filter bag cloth passes through in this extrusion region.

4. The dust filter bag molding apparatus according to claim 3, wherein: the rope wheel is installed on the positioning seat, the hanging rope is hung on the rope wheel from the middle part, and the two end parts of the hanging rope respectively extend downwards and outwards and are connected to the shaft end of the extrusion roller.

5. The dust filter bag molding apparatus according to claim 1, wherein: the side fuses or sewing machine includes sack cloth guider, sack cloth guider include the support, install on the support and be used for folding up the left arc deflector and the right arc deflector of direction from both sides to the middle part with sack cloth, wherein left arc deflector and/or right arc deflector can inwards draw close and outwards open the setting on the support, sack cloth guider still including setting up support seat between support and the sack cloth unwinding, set up and be in the support seat on and the U type supporting part that the opening set up, wherein U type supporting part set up along vertical direction regulation ground on the support seat.

6. The dust filter bag molding apparatus according to claim 5, wherein: the support include the base, set up the base on and along the frame that encloses that the sack cloth moving direction extends, left side arc deflector with the lower tip of right side arc deflector is fixed respectively enclose the bottom of frame, the upper end partially do not overlap the setting from top to bottom, one side of sack cloth is located the overlapping left side arc deflector and right side arc deflector between, the opposite side is located the overlapping bottom left side arc deflector or right side arc deflector in.

7. The dust filter bag molding apparatus according to claim 1, wherein: the cutting machine comprises a buffer memory device for continuously cutting a filter bag and an auxiliary discharging device after cutting, wherein the buffer memory device comprises a fixed frame positioned between a conveying roller of a side fusing or sewing machine and a feeding roller of the cutting machine, a plurality of guide rollers positioned on the fixed frame and arranged in parallel with the conveying roller, a buffer memory frame positioned below the plurality of guide rollers and one end part of which is arranged on the fixed frame in a rotating way around a horizontally arranged pivot, a buffer memory roller arranged on the buffer memory frame and arranged in parallel with the guide rollers, a driving mechanism used for driving the buffer memory frame to rotate around the pivot, a control system used for controlling the operation of the driving mechanism, and an induction system capable of receiving cutting information of the cutting machine and feeding back the information to the control system, wherein the control system controls the operation of the control system according to the information fed back by the induction system, when the filter bag strip is conveyed, the buffer roller is arranged close to the guide roller; when the filter bag strip is cut, the feed roller stops rotating, the sensing system feeds information back to the control system, the cache roller and the guide roller are gradually separated until the feed roller returns to rotate after cutting is finished, and the driving mechanism drives the cache frame to rotate in the opposite direction again to enable the cache frame to gradually reset.

8. The dust filter bag molding apparatus according to claim 7, wherein: the buffer memory device still include buffer memory frame turned angle's spacing protection mechanism, spacing protection mechanism including fixed establishing signal receiver on the mount, fix signal transmitter on the buffer memory frame, work as buffer memory frame rotates the in-process, signal transmitter with when signal receiver aligns, control system control actuating mechanism drive buffer memory frame's rotation, and reset gradually.

9. The dust filter bag molding apparatus according to claim 7, wherein: the auxiliary discharging device and the working platform are respectively positioned on two sides of a conveying belt used for conveying the cut filter bag, the auxiliary discharging device comprises a positioning frame, a shifting lever assembly and a driving mechanism, the shifting lever assembly can be arranged on the positioning frame in a back-and-forth swinging mode along the width direction of the conveying belt, the driving mechanism is used for driving the shifting lever assembly to swing back and forth, the shifting lever assembly is positioned above the side of the conveying belt, and when the shifting lever assembly swings, the shifting lever assembly can be used for shifting the cut filter bag on the conveying belt to the working platform.

10. A method for forming a dust-removing filter bag, which adopts the forming device of any one of claims 1 to 9, and comprises the following steps:

1) forming a bag opening:

2) and forming a bag body:

e) cutting according to the specified size;

3) bag bottom forming