SU1745561A1 - Method and apparatus for manufacturing rubber articles - Google Patents

Abstract

Use: manufacture pslyh rubber products, such as inflatable chambers of swimming equipment, in a continuous manner with high performance. SUMMARY OF THE INVENTION: In the method of manufacturing hollow rubber products, when cutting out the blanks of editions, the second extreme blank is cut out with a width corresponding to the widths of the two extreme stocks of products. One of these blanks is the end of one collection panel, and the other is the beginning of another collection panel. Chart on this workpiece increased width of the curved edges of the extreme blanks of two adjacent prefabricated products. Before connecting the npofli.rv edges, a sealing tape is applied to one of the longitudinal edges offset by the width of the longitudinal seam. Tubular precast panels are formed by overlapping another edge of the panels on the sealing tape and turning the remaining portion of the first longitudinal edge onto the folded portion of the tubular precast panels. After the formation of the tubular precast panels, cutting into separate precast panels of the products is carried out along the curvilinear edges of the outer workpieces of two adjacent precast panels. The installation for the manufacture of hollow rubber products is equipped with a floor conveyor for the removal of the cloth installed between the devices (U) for smearing the glue and drying and placing sealing tape on the transverse seams of the rubber sheet. This conveyor is provided at the output end with a roller for flipping the cloth through 180. The installation is equipped with an additional floor conveyor for transferring the cloth after two-sided processing of its transverse joints to the device for glueing and drying the longitudinal edges of the cloth. The longitudinal edges of the cloth are connected to each other in the form of means for folding the cloth in half and the tool for folding the cloth in half, means for brushing and drying the longitudinal edges of the folded cloth and means for bending one longitudinal edge to another. Wash with glue, dry the transverse thread to the longitudinal edges and 4 WAC tool Ј

Description

for glueing and drying the longitudinal edges of the folded panel are made in the form of drums and envelopes

endless roller bypass roller / chain systems with clips to hold the sheet. 2 sp.f-ly, 17 ill.

The invention relates to the manufacture of precast materials from elastic materials, in particular to methods and installations for the manufacture of hollow rubber products, in particular inflatable chambers of swimming facilities.

A known method of manufacturing hollow rubber products in which the blanks of the rubberized material are cut out with straight transverse and curved (linear longitudinal edges, the blanks are joined to each other along the longitudinal edges of the transverse seams, and the sealing elements are placed on the transverse seams on both sides to form the assembly panel of the product, its longitudinal edges are connected with longitudinal seams to form a tubular collection panel, and they are sealed on the longitudinal seams on both sides Suitable tape and connected to the extreme of the tubular preform precast webs together to form a closed hollow article.

The disadvantages of this method include the impossibility of providing a continuous process for the manufacture of hollow articles and low productivity.

A known device for the manufacture of hollow rubber products containing installed during the process of the device for glueing, drying and applying sealing tape on the transverse seams of the rubber sheet, the device for glueing, drying and joining the longitudinal edges of the cloth to form a tubular billet with a longitudinal seam , a device for applying a sealing tape on the longitudinal seam of the tubular billet and stitching machine

The disadvantages of this installation include the fact that it is designed for the piece-making of hollow rubber products and is unsuitable for

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their. continuous and productive manufacturing.

| The purpose of the invention is to increase its productivity by ensuring the continuity of the process of manufacturing hollow rubber products.

This goal is achieved in that according to the method of manufacturing hollow rubber products, when cutting blanks, the second extreme blank is cut with a width corresponding to the widths of the two extreme finished products, one of which is the end of one precast panel, and the other is the beginning of another precast panel and is scheduled for this billet of increased width, the curvilinear edges of the extreme billets of two adjacent precast panels of products, and before connecting the longitudinal edges, impose a sealing th tape on one of the longitudinal edges offset on the longitudinal seam width, the prefabricated tubular material web is formed by superposing the other edge of the panels on the sealing tape and bloat remaining Chisti first longitudinal edge in the folded portion

0 tubular precast panels; in this case, after forming the tubular precast panels, cutting into separate precast panels of the products along curvilinear edges is carried out

§ extreme blanks of two adjacent precast panels.

An installation for the manufacture of hollow rubber products is provided with inter-device glue, drying and applying sealing tapes on the transverse seams of the rubber sheet with a floor conveyor for taking the tray that is provided on the output roller for turning.

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180 panels and an additional full-length conveyor to transfer the panel after two-sided processing of its transverse grooves on

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the device for smearing and drying the longitudinal edges of the cloth, and the devices for connecting the longitudinal edges of the cloth are made in the form of successively installed behind the device for smearing and drying the longitudinal edges of the cloth in half, the means for smearing and gluing the longitudinal edges of the cloth panels and means for bending one longitudinal edge to another, with devices for smearing with glue, drying cross seams and longitudinal edges and means for smearing with glue and drying The edges of the folded panel are made in the form of drums and envelopes of the system of bypass rollers of endless chains with clips to hold the sheet.

FIG. 1a-c shows an installation diagram for carrying out the proposed method; in fig. 2 - part of the continuous precast panel; on fig.Z -. view A in FIG. 1a; in fig. .A - section BB in FIG. 3; in fig. 5-14 stages of manufacturing a hollow article; in fig. 15- hollow rubber product, general view from above; on FIG. 16, section BB, in FIG. 15; in Fig.17 - section GG on Lig. 15.

The method of manufacturing hollow rubber products is carried out at the plant, which represents a combination of devices, machines and mechanisms located along the process and which allow continuous production of hollow articles, in particular inflatable rubber-fabric chambers, to be carried out. .

An installation for making hollow rubber inflatable chambers contains devices 1 and 2 for smearing and drying transverse seams of the precast panel of the manufactured chambers on both sides (front and inside), a device 3 for smearing and gluing the longitudinal edges of the fabric, a device for connecting the longitudinal edges of the fabric, made in the form of means A for folding a cloth in half, means 5 for spreading glue and drying longitudinally the edges of the folded cloth and means 6 for bending one longitudinal edge to another with a bevel by filling up tubs "O 5 0

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with a longitudinal seam.

The device also includes a device 7 for glueing and drying the longitudinal axial tubular billet and a device 8 for applying a sealing tape on the longitudinal seam of the tubular billet with a rolling machine. Between devices 1 and 2, a floor conveyor 9 is installed for picking a cloth after processing its transverse seams on one side. Between the devices 2 and 3, an additional floor conveyor 8 is installed for transferring the cloth after two-sided processing of its transverse joints to the device 3 for smearing with glue and drying the longitudinal edges of the cloth. Above the floor conveyors 9 and 10 there are working platforms 11 for servicing the devices 1-3 with drive rollers 12 and 13 fixed on them, intended, respectively, for turning the one side processed in the panel 1 by 180 ° and transferring it to the device 2 and for transferring the additional material taken by the additional floor conveyor 10 after the two-sided processing of its transverse joints to the device 3. Means 4 and 6 are technological conveyors 1A and 15, respectively, intended: first for applying the sealing tape to pro- dolnyyu treated cloth edge and folding it in half, and the second - for bending one longitudinal edge to the other to form a longitudinal seam of the tubular material web. In the device 8 there is a technological conveyor 16. dedicated to the imposition of sealing tape on the longitudinal seam and its rolling. The overlay of the sealing tape occurs on the belt 17 of the conveyor 16-, where it is rolled by the stitching machine in the form of a support drive roller 18 and a pressure roller 19 mounted on the stem 20 of the power cylinder 21.

- Devices 1 and 2 for glueing and drying the transverse seams of the precast panel, glueing and drying device 3 for the longitudinal edges of the sheet, means 5 for glueing and drying the longitudinal edges

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The folded plate and the device 7 for glueing and drying the longitudinal seam of the tubular billet (tubular web) are made, respectively, in the form of drive section 22 and 23 and cylindrical 24-26 drums and two branches of endless chains 27 fixed on them with a uniform schag along the length clamps 28 to hold the cloth. The branches of chains 27 in each device bend around a system of water rollers, containing tension 29, drive 30 and deflecting 31 rollers in the form of asterisks.

The drive of the movement of the chains 27 is made from the electric motor 32 connected by a V-belt transmission.

33 with pneumatic clutch 34 mounted on the input shaft of the gearbox 35, the output shaft of which is connected by a chain transmission 36 to the shaft of the drive sprocket 30, Activation control of the pneumatic clutch

34 implemented from the air distributor 37 with solenoid valves for the movement of its spool. The device for applying overlapping tsih tapes on the transverse seams of the cloth is made in the form of a profile drum 38. Professionals 22, 23

and 38 are formed from tubular profiled lodgements 39, made along curvilinear contours of transverse seams of the cloth and intended for fixing the seams during processing and fixed to disks 40 mounted on shafts 41 mounted in supports

42 rotation mounted on frames

43 devices 1 and 2. The number of lugs 39 in the profile drums

22, 23 and 38 are multiples of the number of transverse seams in the treated panel, and the pitch of their mounting on the disks 40 is equal to the distance between the transverse seams of the panel. To ensure accurate and convenient movement of the next lodgements 39 of the profile drums to the working position and movement of the chains 27 by a step equal to the step of fastening the lodgments 39, deflecting sprockets 31 installed over the profile drums 22 and 23, made with diameters, which are swept along the separating circle step of fastening the lodgements 39 on the profile drums 22 and 23, the shafts 41 of which are connected to the shafts 44 located above them, deflecting

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asterisks 31 by chain drives 45, and on one of the educhek 31s there is a stop 46 for affecting the final

a switch 475 mounted on the bearing housing 48 of the shaft 44. The rotational drive (not shown) of the profile drum 38 is similar to that described and this drum 38 is connected by a chain drive 49 to the floor conveyor 9. The surfaces of the deflecting rollers 12 and 13 are made rubberized and these rollers are connected chain gears 50 with floor

conveyors 9, and the roller 13 is also connected by a chain drive 51 to the drum 24 of the device 3. The movement drives of the chains 27 of the devices 3, 5 and 7 and the conveyors 14 and 15 are also

similar to the described drive for

with the exception of the elements of the step movement (four), and the shafts 44 deviate us / m asterisks 31 are connected to cylindrical drums 24-26

chain drives 52. The movement of the belt 17 of the conveyor 16 is driven from the rotational drive of the support roller 18 of the "Stitching machine"

The HCPH of the drums, the chains 27, the floor conveyors 9 and 10 and the deflecting rollers 12 and 13 are the same. The drive control of the installation devices is controlled from push-button

stations and spring-loaded pedals 53 with limit switches 54 installed on them. The frames 43 are covered with sheathing sheets and in the upper parts are connected to the air inlets (not shown).

The manufacture of hollow rubber products, for example, inflatable rubber-fabric chambers 55, which are in the assembled and fully assembled state

the shape of the hollow polyhedral in terms of the torus i (Fig. 15), is carried out in the operation of the installation devices as follows. Preparations 56-67 chambers 55 are cut out from rubberized canvases

materials with curvilinear contours a and linear and straight contours b, from transverse sides.

When cutting out the blanks of chambers 55, the second extreme (end) blank 67 is cut out with a width corresponding to the total width of the two extreme blanks 67 and 56 connected between; I have in myself in the products of cham kzyuzy shkamk, one of

which is the end of one precast panel, and the other end of the beginning of another precast panel, and mark curved contours d, e of the longitudinal sides of the extreme blanks of two adjacent precast panels from their front side for their subsequent separation for the subsequent width along these lines of markup.

The cut blanks 56-67 are processed according to the technology, the filling valves 68 are assembled into the blanks 65 and the joints are connected and the machined parts 56-67 are joined together in a certain sequence along their long curved edges and transverse seams 69 by applying an assembly device ( not shown) in the lengthy precast panel 70, which is placed with a book in the container 71.

To connect the blanks along their curvilinear edges into the collection panel 70 and put it into the book, any devices known for this purpose can be used. The long panel 70 (Fig. 2) consists of panels 56-67 alternating along its length for making individual chambers 55 interconnected at the joints by a workpiece 67-56 of increased width, with one of the blanks 67 being the end of one (previous) collective panels 56-67, and the other, blank 56 - by the beginning of another (subsequent along the length of the precast panel 70) precast panel 56-57, and at the beginning and at the end of the panel 70, the extreme blanks 56 and 67 are placed separate from one another. foot lengthy cloth 7 0 under the device 1 for applying adhesive coatings on transverse seams 69 on their front side and drying them. The front end of the panel 70 from the containers 71 upward is pulled by hand, its first transverse seam 69 (connecting workpieces 56 and 57) is fixed on the initial drum position in the initial working position, and the front end of the panel 70 is fixed in the clamp 28 device 1 and put glue coating on the transverse seam 69

battered precast panel 70 (shown one-sided shading in Fig. 5).

By briefly pressing the pedal 53, the end switch 54 is closed, through which an electrical impulse is supplied from the power supply circuit to the solenoid valves of the air distributor 37 of the actuator, which move its valve to a position in which the compressed air from the network switches on the pneumatic friction clutch FOR and the torque from

5 of gearbox 35 is transmitted through chain transmission 36 to drive sprockets 30, moving chains 27 to step simultaneously with rotation of drum 22 and transfer to the working position of the next lodgment 39 with the next transverse seam 69 placed on it of the collection panel 70 processed by making one turn of asterisks 31 and impact

5 46 to the limit switch 47, disabling the actuator pneumatic clutch 34. Glue the second and subsequent transverse seams 69 with periodic movements of the treated precast 70 per step and dry these coatings when the panel is moved through a system of tapping rollers. When the front end of the prefabricated precast 70 with the non-thinnings on its transverse seams 69 comes out, dried clamps are removed from the dried surfaces 69 and the front end of the panel 70 is passed over the other drum 38, the first transverse .show 69 is fixed on the profile lodgement 39 in the initial position, and the backup loop 72 of the treated panel 70 between the device 1 and the drum 38 and impose on the first transverse seam 69 of the panel 70 sealing tape 73 (Fig. 5 and 16) and roll it, turning on the rotation drive Araban 38 is converted to its working position following lodgements 39 razmeschennmi sequentially on successive transverse seams .nih 69 treated cloth 70, applied to them sealing tapes 73 and rolled down them. Front end the prefabricated panel with ribbons applied to its seams is lowered under the action of the actual 5

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weight and fed further on the conveyor 9 from left to right. i At the exit of the front end of the panel 70, from under the service platform 11, it is pulled over the deflecting roller 11 and deployed to the other side in the backup loop 72 between the roller 12 and the drum 23, and the first transverse seam 69 of the collection pot is fixed. 70 on the profile lodgment 39 of the drum 23S located in the working position, and the front transverse edge of the 7P panel is fixed by detachable clips 28 on the circuit 27 of the device 2 and, with occasional switching on of the drive of the device 2 and movements of the collection canvas 7, adhesive protective of coatings - sealant 74 on transverse seams 69 from the non-faced (inner) side of the precast fabric 70 processed (shown with double-sided hatching in FIG. 6).

When the front end of the panel 70 with processed and dried transverse seams 69 comes out of the device 2, clamps 28 are removed and fed through another floor conveyor Yu under the platform 11 over the deflecting roller 13 to the drum 24, and the front transverse edge of the panel 70 is fixed with removable clamps 29 on circuit 27 of device 3, thereby forming

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the prefabricated panel 70 between the device 3 and the technological conveyor 14. Then, with further movement of the processed panel 70 on the technological conveyor 14, its longitudinal edge b is laid and offset from it by the width of the longitudinal seam in half along its length with the socket facing the other Cr omka from the panel 70, sealing tape 76 with one-sided adhesiveness (adhesive coating) facing outwards to the attached surfaces (Fig. 8).

With further continuous movement, the front end of the processed panel 70 with the tape 76 fixed to its edge b on the conveyor 14 is folded in half relative to the longitudinal axis and continuously impose its other longitudinal edge with an overlap on the continuous tape 76 (Fig. 9) to form a double-layer precast panel 77, and when the front end of the double-layer precast panel 77 leaves the conveyor 14, it is pulled over the drum 25, the front transverse edge of the double-layer prefab 77 is fixed with removable clamps 28 and circuit means 27 5, wherein the image back loop 72 of continuously collected on conveyor 14 dvusloy20

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the backup loop 72 of the processed 35 collapsible cloth between the conveyor 14 and the drum 25, includes driving the means 5 and, with further continuous rotation of the drum 25 and moving the chains 27, longitudinal cro-1 mopping is performed (edge b and back side of edge c) two-layer precast panel 77 (shown by double-sided hatching in FIG. 10) and drying of these coatings with continuous movement of the two-layer panel. When the double-layer precast panel is continuously processed from the means 5, the clamps 28 are removed and the front horses of the double-layer precast strip 77 are transferred to the technological conveyor 15, thus forming a backup loop 72, the drive for moving the conveyor belt 15 is switched on and the continuous double-layer toner 11 is turned on the conveyor 15 is wrapped. the part of the first pre-filling

the prefabricated panel 70 between the roller 13 and the drum 24. The device 2 is activated and, with further continuous rotation of the drum 24 and the movement of the chains 2 /, continuous application of adhesive coatings 74 along the base edges b is performed on the rotating drum 24 and dried the coating 75 with the continuous movement of the machined movement of the processed panel 70 through a system of bypass rollers (shown with one-sided hatching in FIG. 7).

At the exit of the front end of the prefabricated precast fabric 70 with the processed longitudinal edges of the device 3, the clamps 28 are removed and, with further continuous movement of the panel 70, its front end is laid on the conveyor 14, thus forming a backup loop 72 of

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the prefabricated panel 70 between the device 3 and the technological conveyor 14. Then, with further movement of the processed panel 70 on the technological conveyor 14, it is laid along its longitudinal edge b and offset from it by the width of the longitudinal seam in half along its length with a socket facing the other Cr omka from the panel 70, sealing tape 76 with one-sided adhesiveness (adhesive coating) facing outwards to the attached surfaces (Fig. 8).

With further continuous movement, the front end of the processed panel 70 with the tape 76 secured to its edge b on the conveyor 14 fold it in half about the longitudinal axis and continuously impose its other longitudinal edge with an overlap on the continuous tape 76 of Fig. 9, forming a two-layer precast panel 77, and when the front end of the two-layer precast panel 77 leaves the conveyor 14, it is pulled over the drum 25, the front transverse edge of the two-layer precast panel 77 is fixed with removable clips 28 on the circuit 27, the means 5, thus forming a backup loop 72 of the double layer continuously assembled on the conveyor 14

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the spider 14 and the drum 25 turn on the drive of the means 5 and with further continuous rotation of the drum 25 and moving the chains 27, the longitudinal cro-1 wet (edge b and reverse side of edge c) of the double-layer precast web 77 (shown with double-sided hatching in FIG. 10) and drying of these coatings with the continuous movement of a two-layer cloth. When the double-layer precast panel is continuously processed from the means 5, the clamps 28 are removed and the front horses of the double-layer precast strip 77 are transferred to the technological conveyor 15, thus forming a backup loop 72, the drive for moving the conveyor belt 15 is switched on and the continuous double-layer toner 11 is turned on the conveyor 15 is wrapped. the part of the first pre-filling

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edges b on the folded part of a two-layer panel along its other longitudinal edge c and form a longitudinal seam 78 of the tubular precast panel 79 (FIG. 11), which is then transferred to the drum 26, and the front end of the tubular precast panel 79 is fixed with detachable clamps 28 on the chain 27 devices 7, washed with glue longitudinal seam 78 in the area between the front end of the tubular precast web 79 and the drum 26 and after forming a backup loop 72 from the pre-fabricated tubular web 79 between the conveyor 15 and the drum 26 include the drive of the device 7. With further continuous connection of the longitudinal edges b, from the panel 78 on the conveyor 15, the longitudinal seam 78 of the tubular panel 79 is continuously smeared with glue on a rotating drum 26 (shown with one-sided hatching in FIG. 12) and dried up this coating without - intermittent movement of the processed tubular panel through the system of bypass rollers. When the front end of the processed tubular panel 79 exits the device 7 with the adhesive glue coated on its longitudinal seam 78 and dried glue, remove the clamps 28 and shift the front end of the moving treated tubular precast panel 79 to the process conveyor 16, thereby forming a backup loop 78 of the turbo sheet 79, include a drive of the conveyor 16 and the support roller 18 of the stitching machine, and with the further movement of the tubular panel 70 on the conveyor 16, a continuous overlay is made tizuyuschey tape 80 on the longitudinal seam 78 from its front side and its rolling down the pressure roller 19 (Fig. 13).

Then, along the conveyor 16, the assembled front end of the tubular precast web 79 is moved to a cutting mechanism (not shown), in which the tubular precast web 79 is hemmed. panels and soy liners end unclosed

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around the perimeters of the tubular precast panels closing ring seams in the closed closed perimeters. camera 55.

As a cutting mechanism, any device known for this purpose can be used.

To ensure continuous work

10 mechanisms and devices of the installation simultaneously with the manufacture of chambers 55 from the stack of a long precast cloth 70 laid in container 71, assemble the following

15 of the long assembly plate 70 in the assembly device and its placement in a book in another container (shown by a dotted line in FIG. 1), and the ends of the panels 70 from different containers are joined (glued) to each other without stopping the installation.

Thus, during the continuous operation of the mechanisms and devices of the installation, continuous fabrication of rubber-fabric inflatable chambers is carried out.

Claims (2)

1. A method of manufacturing hollow rubber products, in which blanks are cut out of rubberized material with straight transverse and curvilinear longitudinal edges, connect the blanks to each other along the longitudinal edges of the transverse seams, impose sealing elements on both sides to form a composite the fabric, connect its longitudinal edges with longitudinal seams, forming a tubular precast fabric, impose on the longitudinal seams on both sides of the sealing Tents and connect the extreme blanks of the tubular precast panel to each other to obtain a closed hollow article, characterized in that, in order to increase the productivity of the method by ensuring the continuity of the manufacturing process of hollow rubber products, when cutting out the blanks, the second extreme blank is cut out with a width corresponding to two extreme blanks of products, one of which is the end of a single prefabricated 40 5G 55 one 15, the cloths and a friend - the beginning of another precast cloth, and on this workpiece of increased width the curvilinear edges of the outer workpieces of two adjacent precast cloths are plotted, and before connecting the longitudinal edges, a sealing tape is applied to one of the longitudinal edges mixed with the width of the longitudinal seam, and the cloths are formed by laying another edge of the cloths on the sealing tape and turning the remaining part of the first longitudinal edge on the folded part of the tubular precast panels, In this case, after the formation of the tubular precast panels, cutting into separate precast panels of the products is carried out along the curvilinear edges of the extreme blanks of two adjacent precast panels. 2. Installation for the manufacture of hollow rubber products containing installed along the technological process devices for glueing, drying and applying sealing strips on the transverse seams of the rubber sheet, glueing device, drying and joining the longitudinal edges of the sheet together to form a tubular blank with a longitudinal seam, a device for applying a sealing tape on the longitudinal seam of a tubular billet and a stitching machine sixteen 5 5 five 0 0 characterized in that, in order to ensure the possibility of continuous manufacture of hollow rubber products, the installation is equipped with an inter-conveyor for picking the cloth, which is provided at the output end with a roller for rolling the cloth, installed between the devices for glueing, drying and applying sealing strips 180, and an additional floor conveyor to transfer the cloth after double-sided processing of its transverse seams to the prom device glue and drying the longitudinal edges of the cloth, and the device for connecting the longitudinal edges of the cloth is made in the form of successively installed behind the device for glueing and drying the longitudinal edges of the cloth for folding the cloth in half, means for spreading glue and drying the longitudinal edges of the folded cloth and means for bending one longitudinal edge to another, with devices for glueing, drying transverse seams and longitudinal edges and means for glueing and drying longitudinal edges This web is made in the form of drums and envelopes of the system of bypass rollers of endless chains with clips to hold the web. Fig1o 70 /five 70 Wui.lf (PusJ  -J -eLn ul en FIG 12 66 67 55 / / / f-y- --ST - yv 80 80 73 d 6-6 73 ZЈ 56 74 69 57 FIG. sixteen 79 77 / 79 7J / / FIG I e 57 m so so n  H .-i 6361 FIG. 15 78 sixteen № «/ 7