CN107932924B

CN107932924B - Assembling process of gas filter pipe

Info

Publication number: CN107932924B
Application number: CN201710917051.4A
Authority: CN
Inventors: 梁启明
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-28
Filing date: 2017-09-28
Publication date: 2020-11-24
Anticipated expiration: 2037-09-28
Also published as: CN107932924A

Abstract

The invention provides an assembly process of a gas filter pipe, and belongs to the technical field of auxiliary equipment for medical instrument production. The method comprises the following steps: A. feeding plastic pipes; B. loading and assembling filter cotton; C. leakage detection; D. testing and connecting; E. visual detection; F. and discharging the finished product. The operation process comprises plastic pipe feeding → filter cotton feeding and assembling → detection → finished product discharging, and the assembly is automatically completed on a corresponding production line, so that the production automation is realized, the production efficiency of the gas filter pipe is improved, and meanwhile, the screening is carried out through various detections, and the quality product rate of the finished product is improved. The invention utilizes the softness and elasticity of the filtering cotton, can be compressed into the size corresponding to the size of the plastic pipe interface, and is directly plugged into the plastic pipe without designing the plastic pipe into a two-section type, and the assembly process of the filtering cotton and the plastic pipe is ingenious in design, simple and practical.

Description

Assembling process of gas filter pipe

Technical Field

The invention belongs to the technical field of auxiliary equipment for medical instrument production, and particularly relates to an assembly process of a gas filter pipe.

Background

When a hospital delivers oxygen to a patient, the oxygen needs to be filtered and sterilized, and the gas filter pipe is arranged in the middle of the oxygen delivery rubber pipe so as to filter impurities in the oxygen. In the prior art, the plastic pipe outside the gas filtering pipe is generally in a two-section type, and the filtering cotton is clamped and combined after being filled. However, the gas filter pipe is of a two-section structure, so that a gas leakage point is easy to occur after assembly, the production yield is not high, the assembly process is complex, manual assembly is mostly achieved, pollution is easy to generate, and the assembly efficiency is poor. The existing integrated plastic pipe is internally provided with the filtering cotton, and a simple and efficient gas filtering pipe is assembled. When the gas filter pipe is assembled and used, gas cannot leak from the middle of the pipe body, the process of clamping a joint body during assembly is also omitted, and the application value is high.

In the prior art, there are many assembling processes for medical accessories, for example, chinese patent No. 200910312871.6, a drip chamber component connecting process of an infusion set, and the loading and assembling of the accessories are realized by each device mechanism. Although the patent solves the automatic assembly of the dropping funnel component to a certain extent, the patent is not suitable for the gas filtering pipe and the method and the process for assembling the filtering sponge into the plastic pipe, and the technology is not disclosed.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and particularly provides an assembly process of a gas filter pipe, which is used for rapidly assembling the gas filter pipe through automatic assembly and has better assembly quality and production efficiency, so that the yield of finished products is improved.

The object of the present invention can be achieved by the following means.

The assembly process of a kind of gas filter tube, this gas filter tube includes plastic pipe and filter pulp, this assembly process includes the following process:

A. plastic pipe feeding: the plastic pipe is adjusted and discharged from the plastic pipe vibrating disc, and the plastic pipe is clamped by the plastic pipe shifting and feeding mechanism and is placed into the turntable jig on the rotating disc;

B. and (3) filter cotton loading and assembling: the filter cotton is discharged from the filter cotton vibrating disc in an adjusting mode, the filter cotton compressing mechanism compresses the volume of the filter cotton, and the filter cotton pressing and assembling mechanism presses the compressed filter cotton into a plastic pipe in the turntable jig to form a gas filter pipe;

C. and (3) leakage detection: one end of the gas filter pipe in the rotary table jig is blocked and the other end is ventilated through the gas filter pipe ventilating and leakage detecting device, the change of ventilating air pressure is detected by using the sensing assembly, whether the gas filter pipe leaks gas or not is sensed, if the set value of the ventilating air pressure is not reached, the gas filter pipe leaks gas, and the defective product is memorized;

D. testing and dredging: ventilating one end of a gas filter pipe in the turntable jig through a gas filter pipe ventilating and detecting device, wherein the other end of the gas filter pipe is open, detecting the change of ventilating air pressure by using a sensing assembly, sensing whether the gas filter pipe is normally ventilated or not, if the sensed air pressure value is larger than a normal value, determining that the gas filter pipe is defective, and memorizing the defective;

E. visual inspection: clamping the gas filter pipe in the turntable jig by the material clamping mechanism in the gas filter pipe visual detection device, rotating the gas filter pipe for 360 degrees, simultaneously carrying out visual detection on the gas filter pipe by the detection mechanism, photographing to display the assembly condition of the currently detected filter cotton in the plastic pipe, and recording the comparison result in the visual detection device;

F. discharging a finished product: and taking out the product from the turntable jig by a product clamping mechanism of the finished product blanking device, and respectively putting the finished product and the defective product into a finished product box and a defective product box of the material accommodating box according to the detection result in the previous stage.

The gas filtering pipe comprises a plastic pipe and filter cotton arranged in the plastic pipe, wherein the plastic pipe comprises a pipe belly, an upper interface and a lower interface. The assembly process of the gas filter pipe provided by the invention has the operation processes of plastic pipe feeding → filter cotton feeding assembly → detection → finished product discharging, and the assembly is automatically completed on a corresponding production line, so that the production automation is realized, the production efficiency of the gas filter pipe is improved, and meanwhile, the screening is carried out through various detections, and the quality rate of finished products is improved.

Further, step G is performed after the process C, D: discharging defective products, then performing the step E, removing products which are unqualified in ventilation detection in advance according to the ventilation detection result, layering the defective products, and separately processing the defective products. And products unqualified in ventilation detection are removed in advance from the ventilation detection result, and the defective products are layered and processed separately, so that the analysis of the reasons for generating the defective products is facilitated, and the production management is facilitated.

Further, step H is performed between process steps A, B: and (4) plastic pipe detection, wherein the plastic pipe quantity and the plastic pipe interface orientation in the turntable jig are detected through a plastic pipe detection mechanism, and manual or mechanical automatic adjustment is carried out to be normal so as to be suitable for the next assembly.

Further, the order of the processes C and D may be reversed. The present invention is not limited to turn-on first or leak first.

Further, the step a includes the steps of:

a1, plastic pipe discharging: the plastic pipes are orderly arranged and discharged under the vibration of a plastic pipe vibration disc, then the plastic pipes are continuously vibrated to a plastic pipe flat conveying mechanism for buffering and storing materials, and the plastic pipes at the port of the plastic pipe flat conveying mechanism are discharged at intervals through a flat conveying material blocking assembly;

a2, material receiving detection: the plastic pipe in the plastic pipe flat conveying mechanism is directly conveyed into the plastic pipe receiving mechanism for receiving materials, and the in-place and interface orientation conditions of the plastic pipe are respectively sensed by two groups of receiving material sensors arranged on a receiving material sensing seat;

a3, uniform orientation: taking out the plastic pipe in the plastic pipe receiving mechanism through the plastic pipe direction adjusting mechanism, rotating the plastic pipe with the upper interface of the plastic pipe facing backwards by 180 degrees according to the detection result of the procedure a2, enabling the upper interface of the plastic pipe to face forwards uniformly, and then placing the plastic pipe into the plastic pipe aligning mechanism;

a4, aligning and feeding: the plastic pipes are pushed backwards by the plastic pipe aligning mechanism to be blocked, the plastic pipes are aligned uniformly, and then the plastic pipes aligned by the interfaces are taken out by the plastic pipe feeding mechanism and are vertically inserted into a turntable jig on a rotating disc in a rotating mode to be transferred and assembled.

Because the plastic pipes are basically of a symmetrical structure and are not easy to adjust to a uniform orientation in the plastic pipe vibration disc, the plastic pipes are firstly gathered by the plastic pipe receiving mechanism, and then are aligned after being uniformly oriented, so that the design difficulty of the vibration disc can be simplified, the orientation consistency of the plastic pipes can be reliably realized, the subsequent uniform clamping and assembly are facilitated, and the overall design is reasonable.

Further, the step B includes the steps of:

b1, discharging filter cotton: the filter cotton is orderly arranged and orderly discharged under the vibration of the filter cotton vibration disc, and then the filter cotton is continuously vibrated to the filter cotton flat conveying mechanism for buffering and storing the filter cotton, and the filter cotton is conveyed to the filter cotton receiving mechanism;

b2, staggered material receiving: the filtering cotton receiving mechanism receives materials, a material taking space is formed by dislocation, filtering cotton on the rear filtering cotton flat conveying mechanism is blocked, and the filtering cotton transferring mechanism transfers the filtering cotton to the filtering cotton compressing mechanism;

b3, compression of filter cotton: the volume of the filtering cotton is compressed in the front-back and left-right directions by a filtering cotton compression mechanism, so that the filtering cotton can be assembled with the plastic pipe, specifically, the filtering membrane is compressed into a block shape in the left-right direction by a side pushing assembly, then the block-shaped filtering membrane is conveyed into a pressing die by a front pushing assembly, the filtering cotton is firstly pressed to be abutted against the pressing die by a feeding channel of the pressing die at the back front edge to form a vertical strip shape, and the size of the filtering cotton is matched with the inner diameter of an upper interface of the plastic pipe;

b4, press-down assembly: the upper connector of the plastic pipe in the turntable jig is clamped by the plastic pipe clamping assembly; and a pressure lever of the pressing component penetrates through the pressing die and the plastic pipe clamping gas claw and extends into the upper joint of the plastic pipe, the filtering cotton in the pressing die is completely pushed into the pipe belly of the plastic pipe, and the filtering cotton naturally expands in the plastic pipe until the pipe belly of the plastic pipe is filled with the filtering cotton, so that the gas filtering pipe is formed.

The invention utilizes the softness and elasticity of the filtering cotton, can be compressed into the size corresponding to the size of the plastic pipe interface, and is directly plugged into the plastic pipe without designing the plastic pipe into a two-section type, and the assembly process is ingenious in design, simple and practical.

Furthermore, the rotating disc rotates in the gap and the rotating disc fixture on the rotating disc rotates once can be respectively opposite to the devices in the procedures A, B, C, D, E, F and G or H. The turntable jig is arranged on the rotary disc and rotates intermittently along with the turntable jig, and the turntable jig sequentially reaches each post to perform assembly action.

Compared with the prior art, the assembling process of the gas filter pipe has the following advantages.

1. The assembly and detection sequence of the gas filter pipe is reasonably arranged, the process design is simple and convenient, automatic assembly can be realized, and compared with manual feeding and assembly, the working efficiency is improved, and the pollution chance is reduced; meanwhile, multi-station feeding and assembling are automated, so that the labor cost is reduced, and the production efficiency is improved.

2. The invention utilizes the softness and elasticity of the filtering cotton, can be compressed into the size corresponding to the size of the plastic pipe interface, and is directly plugged into the plastic pipe without designing the plastic pipe into a two-section type, and the assembly process of the filtering cotton and the plastic pipe is ingenious in design, simple and practical.

3. The invention gradually optimizes the finished product rate of the product through 3 times of detection, and simultaneously eliminates the defective products detected by communication detection, leakage detection and visual detection by using a defective product blanking device and a finished product blanking device in a layering way, reduces the discharge of the defective products and improves the yield of the finished products. Meanwhile, the method is favorable for analyzing the reasons of the defective products, is convenient for production management, can reuse part of the defective products, and saves production resources.

4. The gas filter pipe assembling machine can be suitable for plastic pipes with different lengths and types, and has wide application range.

Drawings

Fig. 1 is a flow chart of a process for assembling a gas filter tube according to an embodiment of the present invention.

Fig. 2 is a schematic view of a gas filtering pipe assembling machine according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a rotating disk in the embodiment of the invention.

Fig. 4 is a schematic structural diagram of a plastic pipe feeding device in an embodiment of the invention.

Fig. 5 is a schematic structural diagram of a plastic pipe receiving mechanism in an embodiment of the invention.

Fig. 6 is a top view of a plastic pipe receiving mechanism in an embodiment of the invention.

Fig. 7 is a schematic view of the plastic pipe receiving mechanism after the receiving lifting mechanism descends in the embodiment of the invention.

Fig. 8 is an enlarged schematic view of portion A, B of fig. 7.

Fig. 9 is a schematic structural view of the material receiving lifting mechanism in the embodiment of the invention.

Fig. 10 is a schematic structural view of a plastic pipe aligning mechanism according to an embodiment of the present invention.

Fig. 11 is another perspective view of the plastic pipe aligning mechanism according to the embodiment of the present invention.

Fig. 12 is a schematic structural view of a plastic pipe shifting and feeding mechanism in the embodiment of the invention.

Fig. 13 is a bottom view of the plastic pipe shifting and loading mechanism in the embodiment of the present invention.

Fig. 14 is a schematic structural diagram of a filter cotton feeding and assembling device in an embodiment of the invention.

Fig. 15 is a schematic structural diagram of a filter cotton receiving mechanism in the embodiment of the invention.

Fig. 16 is a schematic structural diagram of a filter cotton compression mechanism in an embodiment of the invention.

Fig. 17 is another angular schematic of the mechanism of fig. 16.

FIG. 18 is a schematic view of the structure of a stamper in an embodiment of the present invention.

Fig. 19 is a schematic structural view of a plastic pipe clamping air gripper in an embodiment of the invention.

Fig. 20 is a schematic structural view of a filter pulp downward-pressing assembly mechanism in the embodiment of the present invention.

Fig. 21 is a schematic structural diagram of a ventilation and ventilation mechanism in an embodiment of the invention.

Fig. 22 is a schematic structural diagram of a ventilation and leakage detection mechanism in an embodiment of the invention.

Fig. 23 is a schematic diagram of the overall structure of an embodiment of the present invention.

Fig. 24 is a schematic structural diagram of a material rotating assembly and a material clamping assembly in an embodiment of the present invention.

Fig. 25 is a schematic structural diagram of a finished product blanking device in the embodiment of the invention.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Fig. 1 is a process flow diagram of an embodiment of the present invention, and fig. 2 is a block diagram of a gas filter assembly machine provided for implementing the present process. Fig. 3-25 are diagrams of the dispenser on the assembling machine.

As shown in fig. 2 and 3, a gas filter tube assembling machine comprises a frame 1 and a turntable device 2 arranged on the frame, wherein the turntable device 2 comprises a rotating disc 21 and a turntable driving mechanism 22 arranged on the frame 1 and capable of driving the rotating disc 1 to intermittently rotate, a turntable jig 23 for receiving a plastic tube is arranged on the rotating disc 22, and a plastic tube feeding device 3, a filter cotton feeding and assembling device 4, a gas filter tube ventilation detection device 5, a gas filter tube visual detection device 6 and a finished product blanking device 71 are sequentially arranged on the periphery of the rotating disc 21. In this embodiment, the device has two stations (but not limited thereto), that is, 2 plastic pipes and filter cotton discharge at the same time, and correspondingly 2 gas filter pipes discharge at the same time.

The gas filtering pipe comprises a plastic pipe and filtering cotton, wherein the plastic pipe is in a shape of a Chinese character 'zhong', the plastic pipe comprises a pipe belly with a larger circumference, an upper connector and a lower connector which are connected with an outer pipe respectively protrude from the upper end and the lower end of the pipe belly, and the inner diameters of the upper connector and the lower connector are approximately consistent. The outer circumference of the upper interface contains screw thread, which can be screwed with other fittings to facilitate assembling and disassembling; the outer circumference of the lower interface is smooth and can be directly glued and fixed with other pipelines; the overall outer diameter of the upper port is greater than the outer diameter of the lower port. The filtering cotton is cylindrical and is accommodated in the tube belly of the plastic tube. The assembling machine provided by the embodiment can be suitable for plastic pipes with different lengths and short models and corresponding filtering sponges.

As shown in fig. 4-13, a plastic pipe feeding device 3 for a gas filter pipe comprises a plastic pipe feeding rack 31, on which a plastic pipe vibrating tray 32, a plastic pipe flatly-feeding mechanism 33, a plastic pipe receiving mechanism 34, a plastic pipe aligning mechanism 35, and a plastic pipe shifting and feeding mechanism 36 are sequentially arranged from back to front, wherein the plastic pipe shifting and feeding mechanism 36 comprises a plastic pipe direction-adjusting mechanism 361 for adjusting the plastic pipe clamping in the plastic pipe receiving mechanism 34 to a uniform direction and then transferring to the plastic pipe aligning mechanism 35, and a plastic pipe feeding mechanism 362 for transferring the plastic pipe clamping aligned in the plastic pipe aligning mechanism 35 to a receiving jig. In this embodiment, the plastic pipes are conveyed in the same direction from front to back, that is, the plastic pipes are conveyed forward, or backward. Because the outer diameters of the upper and lower interfaces of the plastic pipe are not consistent, the orientation of the interfaces needs to be unified, so that the subsequent clamping assembly of the plastic pipe is facilitated, and the assembly efficiency is improved.

The plastic pipe flat conveying mechanism 33 comprises a plurality of parallel plastic pipe conveying channels, multi-station feeding can be realized, the production efficiency is improved, and the number of material grooves, the number of air claws and the like which are arranged in a subsequent device for receiving and taking materials correspond to the number of the plastic pipe conveying channels. Mould still to be equipped with on the pipe translation send the mechanism 33 and put and keep off the material subassembly, including pin and can drive the pin and reciprocate and then keep off the material driving piece that keeps off, the blowing, keep off the material driving piece and fix on the fender support of moulding a pipe transfer passage both ends to install and mould the front end top of pipe translation send the mechanism 33. The horizontal feeding material blocking assembly can temporarily block a rear plastic pipe, so that the plastic pipe is prevented from being collided in the plastic pipe receiving mechanism 34 in front, and the plastic pipe is prevented from being jacked in front to influence the detection and material grabbing precision.

As shown in fig. 5-9, the plastic pipe receiving mechanism 34 includes a receiving support frame 341 disposed on the plastic pipe feeding frame 31, a receiving positioning seat 342, a receiving sensing seat 343 and a receiving limiting plate 344 are sequentially fixed on the receiving support frame 341 from back to front, the receiving positioning seat 342 and the receiving sensing seat 343 are disposed at intervals, a direction-adjusting material-taking groove 345 for taking materials from the plastic pipe direction-adjusting mechanism 361 is disposed in the middle, and the receiving limiting plate 344 is fixed at the front end of the receiving sensing seat 343; the material receiving positioning seat 342 and the material receiving sensing seat 343 are both provided with material receiving grooves for accommodating plastic pipes, and the material receiving sensing seat 343 is provided with a material receiving sensor, wherein the material receiving sensor comprises an optical fiber sensor 3461 for sensing the in-place position of the plastic pipes and a correlation type photoelectric sensor 3462 for sensing the orientation of the plastic pipes.

A material receiving lifting mechanism 347 capable of filling/displaying the direction-adjusting material taking groove 345 is also arranged between the material receiving positioning seat 342 and the material receiving induction seat 343, and comprises a lifting plate 3471 and a material receiving lifting driving piece 3472 for driving the lifting plate to move up and down; the lifting plate 3471 is provided with a lifting plate groove 3473 corresponding to the material receiving groove for accommodating the plastic pipe, the fixed end of the material receiving lifting driving member 3472 is mounted on the material receiving supporting frame 341, and the movable end is fixedly connected with the lifting plate 3471. The lifting plate 3471 is used for filling/displaying the direction-adjusting material-taking groove 345, when the lifting plate 3471 is lifted, the direction-adjusting material-taking groove 345 can be filled, the plastic pipe can stably move forwards along the material-bearing groove and the lifting plate groove 3473, and the material blocking situation can not occur due to the vacancy, so that the running stability of the mechanism is improved, and the production efficiency is improved; when the lifting plate 3471 descends, the direction-adjusting material-taking groove 345 can be shown, so that subsequent material taking is facilitated.

The material receiving limiting plate 344 plays a role in stopping materials, when a plastic pipe in the plastic pipe flatly-conveying mechanism 33 moves forwards along the material receiving positioning seat 342 and the material receiving groove on the material receiving induction seat 343 until the plastic pipe is limited by abutting against the material receiving limiting plate 344, and the condition that the plastic pipe is in place and the orientation of the plastic pipe is sensed by the material receiving inductor. The material receiving positioning seat 342 and the material receiving induction seat 343 are arranged at intervals, so that a direction adjusting and taking groove 345 can be naturally formed, a groove does not need to be dug on a plate, and the manufacturing difficulty of accessories is simplified. The position of the direction-adjusting material-taking groove 345 is close to the material-receiving induction seat 343, the plastic pipe direction-adjusting mechanism 361 grabs the plastic pipe belly to take out the plastic pipe, and the material-taking position is fixed, so that plastic pipes with different lengths can be grabbed; the plastic pipe direction adjusting mechanism 361 should not grab the forward interface of the plastic pipe, so that the plastic pipe is prevented from being overcrowded, and a space is provided for installation induction of the material receiving inductor.

Wherein optical fiber sensor 3461 is used for the response whether to arrive the material, sets up the lower interface that highly uses to sense to moulding the pipe and is the standard, so equally can sense the last interface of moulding the pipe, no matter how the interface orientation of moulding the pipe is promptly, can both sense to mould the pipe to expect. As shown in fig. 8, the correlation type photoelectric sensor 3462 is used for sensing the orientation of the plastic pipe interface, and the emitting end and the receiving end are respectively arranged at two sides of the plastic pipe interface, and when installed, the requirements are satisfied: as shown in the enlarged view B in FIG. 8, the light can cross the periphery of the lower interface of the plastic tube to enter the plastic tube; as shown in the enlarged view A in figure 8, the light shading can not be realized by crossing the external thread of the upper interface of the plastic pipe. The light entering and shading of the sensor respectively indicate that the plastic pipe in place is that the lower interface and the upper interface face forwards, so that a control signal is provided for material taking and direction adjustment of the subsequent plastic pipe direction adjusting mechanism, and automatic discharging and direction adjustment of the plastic pipe are realized.

As shown in fig. 10 and 11, the plastic pipe aligning mechanism 35 includes an aligning support frame 351 provided on the plastic pipe feeding frame 31, an aligning material receiving seat 352 is fixed on the aligning support frame 35, a material accommodating through groove 3521 for accommodating a plastic pipe is provided in the front-rear direction of the aligning material receiving seat 352, and an aligning material discharging groove 3522 for discharging the plastic pipe to the plastic pipe direction adjusting mechanism 361 is further provided in the vertical direction of the aligning material receiving seat 352; an aligning pushing mechanism 353 is arranged behind the aligning receiving seat 352, and an aligning stop mechanism 354 is arranged in front of the aligning receiving seat 352. The plastic pipe joints need to be aligned additionally because the positions of the front and rear joints of the plastic pipe after being adjusted backwards are inconsistent.

The aligning and pushing mechanism 353 comprises an aligning push rod 3531, the rear end of the aligning push rod 3531 is connected with an aligning connecting plate 3532, the aligning connecting plate 3532 is driven to move back and forth by an aligning pushing driving piece 3533 fixed on the aligning support frame 351, and the aligning push rod 3531 is driven to move back and forth in the material containing through groove 3521; a push rod supporting seat 3534 is fixedly arranged on the alignment connecting plate 3532 and can be replaced by a linear bearing, and the alignment push rod 3531 is in sliding connection with the alignment connecting plate 3532 through the push rod supporting seat 3534; a rod end stop block 3535 is arranged at the front end of the aligning push rod 3531, and the rear end of the aligning push rod 3531 penetrates through a push rod supporting seat 3534 to be connected with a material pushing rear support plate 3536; a spring 3537 is sleeved between the rod end stop 3535 and the alignment connecting plate 3532. Therefore, the aligning push rod 3531 can elastically and automatically retract and does not rigidly collide with the plastic pipe, so that the damage to the plastic pipe can be reduced, and the waste of raw material accessories is avoided.

The aligning material blocking mechanism 354 comprises an aligning baffle 3541 and an aligning material blocking driving piece 3542 for driving the aligning baffle 3541 to move up and down, wherein the fixed end of the aligning material blocking driving piece 3542 is fixed on the plastic pipe feeding frame 31 through a connecting plate, and the movable end of the aligning material blocking driving piece is fixedly connected with the aligning baffle 3541; the alignment baffle 3541 is spaced from the alignment receiving nest 352 and is free of an alignment take-off vacancy 355 for the take-off of the plastic tubing feed mechanism 362. The alignment push rod 3531 and the alignment baffle 3541 cooperate to act, and the plastic pipe can be aligned by pushing and abutting. The alignment baffle 3541 and the alignment receiving seat 352 are arranged at intervals, so that the alignment taking vacant position can be naturally formed, and the method is simple and effective.

As shown in fig. 12 and 13, the plastic pipe displacement feeding mechanism 36 further includes two plastic pipe displacement supports 363 installed on the plastic pipe feeding frame 31 and respectively arranged at two sides in front of the plastic pipe aligning mechanism 35, the upper ends of the two plastic pipe displacement supports 363 are covered with a plastic pipe displacement fixing plate 364 with a hollow middle, a displacement sliding plate 365 is disposed above the plastic pipe displacement fixing plate 364, two parallel sliding rails are disposed on the displacement fixing plate 364, the displacement sliding plate 365 can slide back and forth on the plastic pipe displacement fixing plate 364 along the sliding rails, a sliding plate driving member 366 for driving the displacement sliding plate 365 to move back and forth is further disposed on the displacement fixing plate 364, and a buffering limiting member for limiting the back and forth displacement of the displacement sliding plate 365; the front and rear parts of the lower end surface of the shift sliding plate 365 are respectively fixed with a plastic pipe feeding mechanism 362 and a plastic pipe steering mechanism 361, and the sliding plate driving member 366 drives the plastic pipe feeding mechanism 362 and the fixed plastic pipe steering mechanism 61 to move forward and backward together.

Plastic pipe direction adjusting mechanism 361 comprises a direction adjusting lifting driving piece 3611, a direction adjusting connecting plate 3612, a rotating cylinder 3613 and a direction adjusting material taking cylinder 3614 from top to bottom, the fixed end of the direction adjusting lifting driving piece 3611 is fixedly connected with a shifting sliding plate 365, the movable end of the direction adjusting lifting driving piece is connected with the upper end face of the direction adjusting connecting plate 3612, the lower end face of the direction adjusting connecting plate 3612 is fixedly connected with the cylinder body of the rotating cylinder 3613, a rotating seat 36131 of the rotating cylinder 3613 faces downwards, a rotating seat 36131 is fixedly connected with the cylinder body of the direction adjusting material taking cylinder 3614 through a connecting block, and a direction adjusting material taking air claw 3615 for grabbing a plastic pipe is further connected below the cylinder body of the.

The plastic pipe feeding mechanism 362 comprises a feeding material taking cylinder 3621 and a feeding material lifting driving piece 3621 which drives the feeding material taking cylinder 3623 to move up and down, the fixed end of the feeding material lifting driving piece 3621 is fixedly connected with a shifting sliding plate 365, the movable end of the feeding material lifting driving piece is connected with the cylinder body of the feeding material taking cylinder 3623 through a feeding connecting frame 3622, and a feeding material taking air claw 3624 which is used for grabbing a plastic pipe is further connected to the lower portion of the cylinder body of the feeding material taking cylinder 3623. A feeding overturning driving piece 3625 for driving the feeding and taking air cylinder 3623 to overturn is further arranged on the feeding connecting frame 3622; the feeding connecting frame 3622 comprises a turnover fixing plate 36221 connected with the movable end of the feeding lifting driving piece 3621, two sides of the lower end face of the turnover fixing plate 36221 are provided with turnover support plates 36222, a turnover plate 36223 penetrates through the two turnover support plates 36222 through bearings, and the cylinder body of the feeding and taking cylinder 3623 is fixedly connected with the turnover plate 36223; the feeding overturning assembly 3625 comprises an overturning driving member 36251 fixed on the overturning fixing plate 36221 by a support plate, the movable end of the overturning driving member 36251 is hinged to a swing rod 36224 externally connected with the overturning plate 36223, and a buffering limiting member for limiting the swing angle of the swing rod 36224 is further arranged on an overturning support plate 36222 close to the swing rod 36224. The movable end of the turning driving member 36251 stretches and retracts to drive the swing rod 36224 to swing back and forth, so as to drive the turning plate 36223 to turn, as shown by an arrow in fig. 12, the plastic pipe in the feeding and material-taking pneumatic claw 3624 is driven to turn over and is turned to be vertical from the horizontal. The buffering locating part is used for slowing down the speed of the accessory when reaching the set position when moving, and the safety and the stability of the accessory when moving are improved.

The plastic pipe feeding mechanism 362 and the plastic pipe direction adjusting mechanism 361 are arranged on a shifting sliding plate 365, and the sliding plate driving piece 366 is used for controlling the plastic pipe feeding mechanism 362 and the plastic pipe direction adjusting mechanism 361 to move back and forth, so that the plastic pipe feeding mechanism 362 and the plastic pipe direction adjusting mechanism 361 take back and place materials. After material gas claw 3615 snatchs and moulds the pipe, it takes place the rotation by revolving cylinder 3613 drive, and then the pipe orientation is moulded in the adjustment, so design, ingenious utilization vertical space, the compact face of arranging separates each other again between each subassembly mechanism, and the space utilization efficiency is high. Each rotating cylinder 3613 is operated independently, and the direction adjusting effect of the plastic pipes can be accurately and independently realized until all the plastic pipes face in a unified way. Utilize material loading upset subassembly 3625 to realize the material loading and get the upset effect of material cylinder 3623, make the mould pipe take place the upset to adapt to the material receiving tool of horizontal or vertical design of inserting. In this embodiment, the rotating disc jig 23 is vertically inserted after being turned over.

As shown in fig. 14-20, a filter cotton loading and assembling device 4 for a gas filter tube comprises a frame 41, a filter cotton vibrating tray 42, a filter cotton flatly-feeding mechanism 43, a filter cotton receiving mechanism 44, a filter cotton compressing mechanism 45, and a filter cotton press-down assembling mechanism 46 are sequentially arranged on the frame from back to front, and a filter cotton transferring mechanism 47 for transferring filter cotton in the filter cotton receiving mechanism 44 to the filter cotton compressing mechanism 45 is further arranged above the filter cotton compressing mechanism 45.

The filter cotton horizontally-conveying mechanism 43 comprises a plurality of parallel filter cotton conveying channels, multi-station feeding can be realized, the production efficiency is improved, and the number of material troughs, air claws and the like arranged in a subsequent device for receiving and taking materials corresponds to the number of the filter cotton conveying channels.

The filter cotton receiving mechanism 44 comprises a filter cotton receiving support frame 441 arranged on the frame 1, a filter cotton receiving block 443 is arranged on the filter cotton receiving support frame 441, and a receiving driving piece 442, preferably a sliding table cylinder, for driving the filter cotton receiving block 443 to dislocate and laterally move is arranged between the filter cotton receiving block 443 and the filter cotton receiving support frame 441; the filter cotton receiving block 443 is provided with a filter cotton receiving groove 444 for receiving filter cotton, the side surface of the filter cotton receiving block 443 is further provided with an in-place sensor 445 for sensing the in-place condition of the filter cotton, and the corresponding filter cotton receiving block 443 is provided with a sensing through hole 4451 for the ray of the in-place sensor 445 to pass through. The filter cotton receiving groove 444 comprises a feeding groove 4441 which is opened towards the filter cotton horizontally-conveying mechanism 43, the cross section of the feeding groove 4441 corresponds to the filter cotton, a material taking groove 4442 is formed in the front part of the feeding groove 4441 in an outward mode, and the width of the material taking groove 4442 is smaller than the maximum width of the feeding groove 4441.

The filtering cotton material receiving mechanism 44 receives materials in a staggered mode, the received materials can be moved out to obtain vacant positions, material taking is facilitated, and meanwhile the material blocking effect on the filtering cotton at the back is achieved, so that the material receiving and moving points of the filtering cotton are clear and do not interfere with each other, the design is ingenious, and the structure is compact.

The filter cotton compression mechanism 45 comprises a compression fixing plate 451, and the compression fixing plate 451 is supported above the frame 41 through two side support plates; the compression fixing plate 451 is provided with a forward pushing assembly 454 for compressing the filter cotton in the forward and backward direction, a side pushing assembly 453 for compressing the filter cotton in the left and right direction, and a pressing die 452 for accommodating the compressed filter cotton from the rear to the front. The pushing assembly 454 comprises a front pressing block 4541 capable of moving back and forth on the compression fixing plate 451, a slide rail is arranged on the compression fixing plate 451, the front pressing block 4541 slides back and forth on the slide rail through a slide block, and the pushing assembly 454 further comprises a front pressing driving member 4542 driving the front pressing block 4541 to move back and forth. The side push assembly 453 comprises a side pressure fixed block 4531, a side pressure movable block 4532 and a side pressure driving piece 4533 for driving the side pressure movable block 4532 to approach the side pressure fixed block 4531; the side pressure fixing block 4531 is L-shaped and comprises a vertical side pressure baffle plate and a horizontal side pressure bottom plate, and the front pressing block 4541 penetrates between the side pressure baffle plate and the side pressure movable block 4532 to push the compressed filter cotton into the pressing die 452. The die 452 is in a block shape, a feeding channel 4521 is arranged at the middle part of the die rearwardly and outwardly, and a pressing channel 4522 for assembling with a plastic pipe is arranged at the front bottom end of the feeding channel 4521 extending downwardly and outwardly. As shown in fig. 18, in which the upper view is a perspective view of the stamper and the lower view is a sectional view of the stamper.

The filtering cotton compression mechanism 45 is used for compressing the filtering cotton in the front-back left-right direction, so that the filtering cotton can be conveniently assembled with the plastic pipe. The filter membrane is compressed into a block shape in the left-right direction by the side push unit 453, the side pressure stoppers of the side pressure fixing blocks 4531 are fixed, and the side pressure movable blocks 4532 move to the side pressure stoppers, whereby the driving force of side compression can be reduced, and only one side pressure is required. After the filter membrane is compressed in the left-right direction, the block-shaped filter membrane is forwards conveyed into the pressing die 452 by the forward pushing assembly 454, the filter cotton is firstly pressed to be abutted against the pressing die 452 by the backward front edge feeding channel 4521 to form a vertical strip shape, and then the filter cotton is pressed out from the pressing channel 4522 from top to bottom to enter the plastic tube. The pressing die 452 is arranged to limit the volume of the compressed filtering sponge, so that the compression of the filtering sponge is quantified, the automatic assembly of the filtering sponge is facilitated, and the labor productivity is improved.

The filter cotton press-down assembling mechanism 46 includes a filter cotton press-down assembly 461 and a plastic pipe clamping assembly 462 respectively disposed above and below the press mold 452, and a turntable jig 23 for accommodating a plastic pipe is further disposed in front of the plastic pipe clamping assembly 462. The plastic pipe is located in the turntable jig 23 and is clamped and fixed by the plastic pipe clamping assembly 462, and the filter cotton formed by compression is pressed into the plastic pipe by the filter cotton pressing assembly 461.

The filter cotton pressing assembly 461 comprises a pressing base plate 4612, a pressing rod 4614 which is arranged on the lower end face of the pressing base plate 4612 and used for pressing the filter cotton into the plastic pipe through a pressing die, and a pressing support bracket 4611 on which a pressing driving piece 4613 for driving the pressing base plate 4612 to move up and down is arranged; the movable end of the downward pressing driving piece 4613 is fixed with the upper end face of the pressing bottom plate 4612, a guide post 4615 is arranged between the pressing bottom plate 4612 and the downward pressing support frame 4611, one end of the guide post 4615 is fixed with the pressing bottom plate 4612, the other end of the guide post passes through the downward pressing support frame 4611 and extends upwards, and a guide post support base 4616 is further arranged between the guide post 4615 and the downward pressing support frame 4611. The guide post 4615 and the supporting guide post support base 4616 are arranged to enhance the stability of the pressing process of the pressing rod 4614, so that the pressing rod 4614 can be positioned more accurately in the up-and-down process, and the pressing success rate of the pressing rod is improved.

The plastic pipe clamping assembly 462 comprises a plastic pipe clamping cylinder 4621 and a corresponding plastic pipe clamping air claw 4622, and the plastic pipe clamping assembly 462 further comprises a plastic pipe pushing driving part 4623 which is arranged below the compression fixing plate 451 and used for pushing the plastic pipe clamping cylinder 4621 to move back and forth; the plastic pipe clamping air claw 4622 comprises a left air claw and a right air claw which are closed to form an upward cotton inlet 46221 and a downward plastic pipe clamping groove 46222, wherein the plastic pipe clamping groove 46222 is shaped and sized corresponding to the plastic pipe upper interface, and the inner diameter of the cotton inlet 46221 is smaller than the inner diameter of the plastic pipe upper interface and is not smaller than the inner diameter of the material pressing channel 4522 of the pressing die 452. The filtering cotton enters a large caliber from a small caliber, so that the material can not be blocked in the process, and the reliability of the material plugging process is ensured.

The filter cotton transfer mechanism 47 comprises a material taking assembly capable of moving back and forth, and the material taking assembly comprises a material taking air claw for clamping and taking filter cotton.

As shown in fig. 3, a plastic pipe detection mechanism 8 for detecting the insertion condition of the plastic pipe on the turntable jig 23 is further disposed between the plastic pipe feeding device 3 and the filter cotton feeding assembly device 4, and includes a detection support rod 81 and first, second and

third sensors

82, 83 disposed on the detection support rod 81. The first inductor 82 and the second inductor 83 are vertically arranged, the first inductor 82 is used for sensing the orientation of the plastic pipe interface, and the second inductor 83 is used for sensing the number of the plastic pipes on the turntable jig 23. When the rotating disc 21 rotates, the plastic pipes on the rotating disc jig 23 sequentially pass through the sensing range of the second sensor 83, and under normal conditions, 2 signals are received, which indicates that 2 plastic pipes exist in the rotating disc jig 23, otherwise, if the signals are not received for 2 times, the phenomenon is abnormal. Because the upper and lower interfaces of the plastic pipe are different in structure and the outer diameters of the upper and lower interfaces are different, when the upper interface of the plastic pipe faces upwards, the plastic pipe can be completely inserted into the material receiving cavity of the turntable jig 23, and if the upper interface of the plastic pipe faces downwards, the plastic pipe cannot be completely inserted into the material receiving cavity of the turntable jig 23, the top end height of the plastic pipe is obviously under the condition that the upper interface of the plastic pipe faces upwards, and therefore the sensor 82 can sense that the orientation of the interface of the plastic pipe is abnormal. The possible abnormal phenomena are automatically adjusted to be normal manually or mechanically so as to be suitable for the next assembly.

As shown in fig. 21 and 22, the ventilation and leakage detection mechanism 51 and the ventilation and leakage detection mechanism 52 are provided, wherein the ventilation and leakage detection mechanism 51 is provided with a ventilation rod 53, the ventilation and leakage detection mechanism 52 comprises a ventilation rod 53 and an air blocking rod 54 which are oppositely arranged, the ventilation rod 53 is communicated with an air supply component and a sensing component 55 for detecting ventilation air pressure change, a hollow cavity for ventilation is arranged in the ventilation rod 53 and can be in sealed insertion with a connector at one end of a plastic pipe, and the air blocking rod 54 can be in sealed insertion with a connector at the other end of the plastic pipe.

The sensing assembly 55 includes a pressure gauge for measuring the air pressure, a pressure display for displaying the pressure.

The ventilation and ventilation mechanism 51 comprises a ventilation driving source 531 for connecting the ventilation bracket 511 and the plastic pipe joint, and driving the ventilation rod 53, wherein the fixed end of the ventilation driving source 531 is fixed on the ventilation bracket 511, and the movable end is fixedly connected with the ventilation rod 53 through a ventilation connecting plate 532. The ventilation rod 53 is vertically arranged on the ventilation connecting plate 532, the air outlet of the ventilation rod 53 faces downwards, and the ventilation driving source 531 drives the ventilation rod to move up and down to plug the plastic pipe connector. A collecting box 56 for collecting the blown filter pulp is further provided below the ventilation rod 53 of the ventilation and ventilation mechanism 51.

The ventilation and leakage detection mechanism 52 comprises a leakage detection bracket 521 and a ventilation driving source 531 for driving the ventilation rod 53 to be inserted into the plastic pipe connector, wherein the fixed end of the ventilation driving source 531 is fixed on the leakage detection bracket 521, and the movable end is fixedly connected with the ventilation rod 53 through a ventilation connecting plate 532; the ventilation and leakage detection mechanism 52 further includes a gas blocking driving source 541 for driving the gas blocking rod 54 to move relatively toward the ventilation rod 53, and the gas blocking rod 54 is connected to a movable end of the gas blocking driving source 541 through a gas blocking connecting plate 542. The ventilation rod 53 of the ventilation leakage detection mechanism 52 is vertically arranged on the ventilation connecting plate 532, the air outlet of the ventilation rod 53 faces downwards, and the ventilation driving source 531 drives the ventilation rod to move up and down to be inserted into the plastic pipe connector; the air blocking rod 54 is vertically installed on the air blocking connecting plate 542 correspondingly, an air blocking head of the air blocking rod 54 faces upwards, and the air blocking driving source 541 drives the air blocking rod to move up and down and is inserted into the other connector of the plastic pipe.

The front end of the ventilation rod 53, namely the ventilation plug 533, is in a cone shape, and the bottom of the ventilation plug 533 is provided with a sealing ring 57 for sealing. The front end of the air blocking rod 54, the air blocking plug 543, is in a cone shape and is a solid core, and the bottom of the air blocking plug 543 is provided with a sealing ring 57 for sealing. Because the ventilation method is adopted for detection, the air pressure change is large, and in order to ensure that the ventilation rod 53 and the air blocking rod 54 are effectively inserted into the plastic pipe connector, the front end of the plastic pipe connector is in a tapered shape with a reducing cavity, and can be inserted in a guiding way, so that the detection effectiveness is improved. The ventilation rod 53 and the air blocking rod 54 which are matched with the plastic pipe connector are designed, so that the plastic pipe is more tightly inserted, and the detection accuracy is improved.

The products which are unqualified in ventilation measurement can be the products with poor quality of the filter cotton or the filter pipe of the gas filter pipe, and the ventilation is not smooth due to poor permeability. The products with unqualified ventilation and leakage detection can cause the problem of the quality of the plastic pipe of the gas filter pipe, and the plastic pipe has cracks to cause air leakage.

As shown in fig. 23 and 24, a visual inspection device 6 for a gas filter tube comprises an inspection bracket 61, and an inspection material clamping mechanism 62 and an inspection mechanism 63 which are arranged on the inspection bracket, wherein the inspection material clamping mechanism 62 comprises a material clamping bracket 621, a material clamping assembly 622, and a material rotating assembly 623 for driving the material clamping assembly to rotate 360 degrees, and the material rotating assembly 623 and the material clamping assembly 622 are respectively installed above and below the material clamping bracket 621; the detection mechanism 3 comprises a camera 631 and a light source 632 respectively arranged at the front and the back of the material clamping component 622, and the camera 631 is supported in front of the material clamping component 622 through the camera bracket 33. The rotating disk 21 and the rotating disk jig 23 pass under the camera mount 33.

The visual inspection device further comprises an up-down driving assembly 64 for driving the detection clamping mechanism 62 to move up and down, wherein the up-down driving assembly 64 comprises an up-down driving source 641 of which the fixed end is arranged on the fixing plate 611 of the detection bracket 61, and the movable end of the up-down driving source 641 penetrates through the fixing plate 611 to be fixedly connected with the clamping bracket 621; a plurality of guide posts 642 are further arranged on the fixing plate 611 in a penetrating manner, the lower ends of the guide posts 642 are fixed to the clamping bracket 621, a transition plate 643 is arranged at the upper end of each two adjacent guide posts, and a buffer 644 is arranged on the transition plate.

The material rotating component 623 comprises a driving motor 6231, and the output end of the driving motor 6231 is keyed with a driving wheel 6232; the material clamping assembly 622 comprises a material clamping cylinder 6221 and a material clamping gas claw 6222 corresponding to the material clamping cylinder for clamping the gas filter tube. The top of the material clamping cylinder 6221 is connected with a connecting shaft (not shown in the figure), the upper end of the connecting shaft passes through the material clamping bracket bottom plate 6211 and is connected with a driven wheel 6233, a belt 6234 is arranged between the driving wheel 6232 and the driven wheel 6233, the driving wheel 6232 and the driven wheel 6233 are connected in series by the belt 6234, and a tension wheel 6235 for keeping the belt compact is further arranged in the middle of the belt 6234. The connecting shaft is also provided with a bearing, and a bearing support base 6223 is sleeved between the bearing and the material clamping support base plate 6211. A rotary connecting block 6224 for connecting buffering is also arranged between the material clamping cylinder 6221 and the connecting shaft. The motor initiative is rotatory can drive a plurality of material subassemblies 622 driven rotations that press from both sides, realizes that the multistation detects simultaneously, as shown in this embodiment, is two stations, can improve production efficiency.

Through accessories such as setting up guide pillar 642, bearing supporting seat 6223, swivelling joint piece 6224, make press from both sides material subassembly 622 and stabilize the lift to the gas filter pipe is got to accurate clamp, and motor initiative is rotatory can drive a plurality of clamp material subassemblies and driven rotatory, realizes that the multistation detects simultaneously, improves production efficiency. The gas filtering pipe is designed to be driven by the motor 631 to rotate in situ, so that 360-degree detection of the gas filtering pipe can be completed by arranging only one camera, the structure of the device is simplified, and resources are saved.

As shown in fig. 25, the finished product discharging device 71 includes a product gripping mechanism 711 for taking out a product from the turntable jig 23, and a storage box 712, an opening of the storage box 712 is located below the gripping robot 7111 of the gripping mechanism 711, a turnable material distributing plate 7121 is provided in the storage box 712, the storage box 712 is divided into two parts and is respectively communicated with the finished product box 7122 and the defective product box 7123, and a material distributing cylinder 713 for turning over the material distributing plate 7121 is provided at a side of the storage box 712, so that the storage box 712 only exposes the finished product box 7122 or the defective product box 7123. The defective product discharging device 72 has the same structure as the finished product discharging device 71, except that two defective product boxes are communicated with the material accommodating box 712, and are respectively used for receiving and connecting unqualified products for testing and unqualified products for leakage testing. The finished product blanking device 71 is used for receiving finished products and visually detecting unqualified products. The defective products have 3 levels, and the subsequent treatment process will be different. Products which are unqualified in detection and leakage detection can be directly abandoned, and products which are unqualified in visual detection can be put into use again.

The assembly of the gas filter tube corresponds to the process flow diagram shown in fig. 1 as follows.

Plastic pipe feeding

1. Discharging the plastic pipe: the plastic pipes are orderly arranged and discharged under the vibration of the plastic pipe vibration disc 32, then continue to vibrate to the plastic pipe flat conveying mechanism 33 for buffering and storing materials, and the plastic pipes at the port of the plastic pipe flat conveying mechanism 33 are discharged at intervals through the flat conveying material blocking component 331;

2. material receiving detection: the plastic pipe in the plastic pipe flat conveying mechanism 33 is directly conveyed into the plastic pipe receiving mechanism 34 for receiving materials, and the in-place and interface orientation conditions of the plastic pipe are respectively sensed by two groups of receiving material sensors arranged on the receiving material sensing seat 343;

3. unified orientation: taking out the plastic pipe in the plastic pipe receiving mechanism 34 through the plastic pipe direction adjusting mechanism 361, rotating the plastic pipe with the upper interface of the plastic pipe facing backwards by 180 degrees according to the detection result of the procedure a2, enabling the upper interface of the plastic pipe to face forwards uniformly, and then placing the plastic pipe into the plastic pipe aligning mechanism 35;

4. aligning and feeding: the plastic pipes are pushed backwards to form a front stop through the plastic pipe aligning mechanism 35, the plastic pipes are aligned uniformly, and then the plastic pipes with aligned interfaces are taken out by the plastic pipe feeding mechanism 62, rotated, vertically inserted into the turntable jig 23 on the turntable 21 and transferred and assembled.

Second, plastic pipe detection

The plastic pipes in the turntable jig 23 are transferred to a plastic pipe detection station, in the rotating process of the rotating disc, the first inductor 82 is used for sensing the orientation of the plastic pipe interface, and the second inductor 83 is used for sensing the number of the plastic pipes on the turntable jig 23. When the second sensor 83 receives the signal for 2 times, the first sensor 82 does not receive the signal, and it is normal. If the above-mentioned induction condition is not generated at the same time, the equipment will give an alarm, the assembling machine stops working, and the plastic pipe on the turntable jig 23 is adjusted to be normal by people, so as to be suitable for the next assembling. The rotating disc 21 is started again and the plastic pipe is transferred to the next process.

Thirdly, filter cotton feeding assembly

1. Discharging the filter cotton: the filter cotton is orderly arranged and orderly discharged under the vibration of the filter cotton vibration disc 42, and then is continuously vibrated to the filter cotton flat conveying mechanism 43 for buffering and storing the filter cotton, and the filter cotton is conveyed to the filter cotton receiving mechanism 44;

2. material receiving in a staggered manner: the filtering cotton receiving mechanism 44 receives materials, a material taking space is formed by dislocation, the filtering cotton on the rear filtering cotton flat conveying mechanism 43 is stopped, and the filtering cotton transferring mechanism 47 transfers the filtering cotton to the filtering cotton compressing mechanism 45;

3. compressing filter cotton: the volume of the filtering cotton is compressed in the front-back left-right direction by the filtering cotton compression mechanism 45, so that the filtering cotton can be assembled with the plastic pipe, specifically, the filtering membrane is compressed into a block shape in the left-right direction by the side push component 453, the block-shaped filtering membrane is sent to the pressing die 452 by the front push component 454, the filtering cotton is pressed to be abutted against the pressing die 452 from the feeding channel 4521 of the back front edge pressing die to form a vertical strip shape, and the size of the filtering cotton is matched with the inner diameter of the upper connector of the plastic pipe;

4. pressing and assembling: the upper interface of the plastic pipe in the turntable jig 23 is clamped by the plastic pipe clamping component 462; a pressure rod 4614 of the pressing assembly 461 passes through the pressing die 452 and the plastic pipe clamping air claw 4622 and extends into the upper interface of the plastic pipe, the filtering cotton in the pressing die 452 is completely pushed into the tube belly of the plastic pipe, and the filtering cotton naturally expands in the plastic pipe until the tube belly of the plastic pipe is filled, so that the gas filtering pipe is formed.

Fourth, ventilation survey leads to

The gas filter pipe is driven by the turntable jig 23 to be transferred to a ventilation and ventilation area and is arranged below a ventilation rod 53 of the ventilation and ventilation mechanism 51, the ventilation driving source 531 drives the ventilation rod 53 to descend to be in sealed insertion connection with an upper interface of the gas filter pipe, the gas supply assembly starts to ventilate the gas filter pipe, the sensing assembly 55 detects ventilation pressure change and senses whether the gas filter pipe is normally ventilated, and if the sensed pressure value is larger than a normal value, the gas filter pipe is a defective product and the defective product is memorized.

Fifth, ventilation and leakage detection

The gas filter pipe is driven by the turntable jig 23 to be transferred to a ventilation and leakage detection area and is arranged between a ventilation rod 53 and a gas blocking rod 54 of a ventilation and leakage detection mechanism 52, a ventilation driving source 531 drives the ventilation rod 53 to descend to be in sealed insertion connection with an upper interface of the gas filter pipe, a gas blocking driving source 541 drives the gas blocking rod 54 to ascend to be in sealed insertion connection with a lower interface of the gas filter pipe, a gas supply assembly starts to ventilate the gas filter pipe, a sensing assembly 55 detects ventilation pressure change to sense whether the gas filter pipe leaks gas or not, if the set value of the ventilation pressure does not reach, the gas filter pipe is leaked gas, and is a defective product, and the.

Sixthly, discharging defective products

The defective product unloading device 72 takes out the defective products sensed after the ventilation detection, and sorts the defective products of different reasons into different defective product boxes according to the detection result. The qualified product is continuously driven by the rotating disc 21 to be transferred to the next process.

Seventh, visual inspection

The gas filter pipe is driven by a jig to be transferred to a visual detection area, the upper and lower driving sources 41 drive the material clamping assembly 22 to descend, the material clamping gas claw 222 is opened and closed by the material clamping cylinder 221 to clamp an upper interface of a plastic pipe of the gas filter pipe, and then the upper and lower driving sources 41 drive the material clamping assembly 22 to ascend to extract the whole gas filter pipe. The driving motor 231 drives the driving wheel 232 to rotate, the driven wheel 233 and the material clamping component 22 are sequentially driven to rotate, the gas filter pipe is driven to rotate for 360 degrees, pictures of the gas filter pipe are taken through the lens of the camera 31 while the gas filter pipe rotates, particularly, the state of filter cotton in the plastic pipe belly is compared with standard pictures, the comparison and judgment contents include whether filter cotton exists in the plastic pipe, whether the filter cotton is filled in the plastic pipe at the correct assembly position, whether the plastic pipe belly is completely filled, and the like, whether the gas filter pipe is qualified is judged according to the comparison result, and defective products are memorized. After the gas filter pipe rotates for one circle, the upper and lower detection driving sources 41 drive the material clamping assembly 22 to descend, and the gas filter pipe is placed back into the jig again to be transferred to perform the next process.

Eighthly, finished product blanking

The finished product blanking device 71 takes out all the gas filter pipes in the turntable jig 23, puts the sensed defective products into a defective product box after visual inspection, and puts the qualified products into a finished product box. The empty turntable jig 23 is driven by the turntable 21 to transfer the first process, and the material is collected and assembled again.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The assembly process of a kind of gas filter tube, this gas filter tube includes plastic pipe and filter pulp, this assembly process includes the following process:

A. plastic pipe feeding: the plastic pipe is adjusted and discharged from a plastic pipe vibrating disc (32), and the plastic pipe is clamped and placed into a turntable jig (23) on a rotating disc (21) by a plastic pipe shifting and feeding mechanism (36);

B. and (3) filter cotton loading and assembling: the filter cotton is discharged from a filter cotton vibrating disc (42) in an adjusting mode, the filter cotton is compressed in volume by a filter cotton compression mechanism (45), and the compressed filter cotton is pressed into a plastic pipe in a turntable jig (23) by a filter cotton pressing and assembling mechanism (46) to form a gas filter pipe; specifically, the method comprises the following steps:

b1, discharging filter cotton: the filter cotton is orderly arranged and orderly discharged under the vibration of a filter cotton vibration disc (42), and then is continuously vibrated to a filter cotton flat conveying mechanism (43) for buffer storage, and the filter cotton is conveyed to a filter cotton receiving mechanism (44);

b2, staggered material receiving: the filter cotton receiving mechanism (44) receives materials, a material taking space is formed by dislocation, meanwhile, the filter cotton on the rear filter cotton flat conveying mechanism (43) is blocked, and the filter cotton transfer mechanism (47) transfers the filter cotton to the filter cotton compression mechanism (45);

b3, compression of filter cotton: the filter cotton is compressed in the front-back and left-right directions by a filter cotton compression mechanism (45) so that the filter cotton can be assembled with the plastic pipe, specifically, the filter membrane is compressed into a block shape in the left-right direction by a side pushing assembly (453), the block-shaped filter membrane is conveyed into a pressing die (452) by a front pushing assembly (454), the filter cotton is pressed against the pressing die (452) by a feeding channel (4521) of the back front edge pressing die to form a vertical strip shape, and the size of the vertical strip shape is matched with the inner diameter of an upper connector of the plastic pipe;

b4, press-down assembly: the upper connector of the plastic pipe in the turntable jig (23) is clamped by a plastic pipe clamping component (462); a pressure lever (4614) of the downward pressing assembly (461) passes through the pressing die (452) and the plastic pipe clamping air claw (4622) and extends into the upper joint of the plastic pipe, the filter cotton in the pressing die (452) is completely pushed into the tube belly of the plastic pipe, and the filter cotton naturally expands in the plastic pipe until the tube belly of the plastic pipe is filled with the filter cotton to form the gas filter pipe;

C. and (3) leakage detection: one end of the gas filter pipe in the rotary table jig (23) is blocked and the other end is ventilated through a gas filter pipe ventilating and leakage detecting device (52), a sensing assembly (55) is used for detecting the change of ventilating air pressure to sense whether the gas filter pipe leaks gas or not, if the set value of the ventilating air pressure is not reached, the gas filter pipe leaks gas, and the gas filter pipe belongs to a defective product, and the defective product is memorized;

D. testing and dredging: ventilating one end of a gas filter pipe in the turntable jig (23) through a gas filter pipe ventilating and ventilating device (51), opening the other end of the gas filter pipe, detecting the change of ventilating air pressure by using a sensing assembly (55), sensing whether the gas filter pipe is normally ventilated, and if the sensed air pressure value is larger than the normal value, determining that the gas filter pipe is defective and memorizing the defective;

E. visual inspection: detecting the gas filter pipe clamped out of the turntable jig (23) by the clamping mechanism (62) in the gas filter pipe visual detection device (6), rotating the gas filter pipe for 360 degrees, simultaneously carrying out visual detection on the gas filter pipe by the detection mechanism (63), photographing and displaying the assembly condition of the currently detected filter cotton in the plastic pipe, and recording the comparison result in the visual detection device;

F. discharging a finished product: the product is taken out from the turntable jig (23) by a product clamping mechanism (711) of the finished product blanking device (71), and finished products and defective products are respectively put into a finished product box (7122) and a defective product box (7123) of the material accommodating box (712) according to the detection result in the previous stage.

2. The process of assembling a gas filter tube of claim 1, wherein step G is performed after process step C, D: discharging defective products, then performing the step E, removing products which are unqualified in ventilation detection in advance according to the ventilation detection result, layering the defective products, and separately processing the defective products.

3. The process of assembling a gas filter tube according to claim 2, wherein step H is performed between sequence A, B: and (3) plastic pipe detection, wherein the plastic pipe number and the plastic pipe interface orientation in the turntable jig (23) are detected through a plastic pipe detection mechanism (8), and manual or mechanical automatic adjustment is performed to normal so as to be suitable for assembly on the next step.

4. A process of assembling a gas filter tube according to claim 1, wherein the sequence of steps C and D is reversed.

5. A process of assembling a gas filter tube according to claim 1, wherein step a comprises the steps of:

a1, plastic pipe discharging: the plastic pipes are orderly arranged and orderly discharged under the vibration of a plastic pipe vibration disc (32), then are continuously vibrated to a plastic pipe flat conveying mechanism (33) for buffering and storing materials, and the plastic pipes at the port of the plastic pipe flat conveying mechanism (33) are discharged at intervals through a flat conveying material blocking assembly (331);

a2, material receiving detection: the plastic pipe in the plastic pipe flat conveying mechanism (33) is directly conveyed into the plastic pipe receiving mechanism (34) to receive materials, and the in-place and interface orientation conditions of the plastic pipe are respectively sensed by two groups of receiving material sensors arranged on a receiving material sensing seat (343);

a3, uniform orientation: taking out the plastic pipe in the plastic pipe receiving mechanism (34) through the plastic pipe direction adjusting mechanism (361), rotating the plastic pipe with the backward plastic pipe upper interface by 180 degrees according to the detection result of the procedure a2, leading the orientation of the plastic pipe upper interface to be uniform and forward, and then placing the plastic pipe into the plastic pipe aligning mechanism (35);

a4, aligning and feeding: the plastic pipes are pushed backwards by the plastic pipe aligning mechanism (35) to form a front stop, the plastic pipes are aligned uniformly, then the plastic pipes with aligned interfaces are taken out by the plastic pipe feeding mechanism (362) and are rotated to be vertically inserted into a turntable jig (23) on a rotating disc (21) for transferring and assembling.

6. The process for assembling a gas filter tube according to claim 3, wherein the rotary disk (21) is rotated intermittently and the rotary disk jig (23) is rotated once to face the devices in the processes A, B, C, D, E, F and G or H, respectively.