CN116728800B - Forming process of fire hose - Google Patents
Forming process of fire hose Download PDFInfo
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- CN116728800B CN116728800B CN202310977256.7A CN202310977256A CN116728800B CN 116728800 B CN116728800 B CN 116728800B CN 202310977256 A CN202310977256 A CN 202310977256A CN 116728800 B CN116728800 B CN 116728800B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000004033 plastic Substances 0.000 claims abstract description 126
- 229920003023 plastic Polymers 0.000 claims abstract description 126
- 230000000149 penetrating effect Effects 0.000 claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000009940 knitting Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 51
- 238000003825 pressing Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000009423 ventilation Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000007605 air drying Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 238000007689 inspection Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 240000008564 Boehmeria nivea Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000208202 Linaceae Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7897—Means for discharging the joined articles from the joining apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to the technical field of production of fire hose, in particular to a forming process of fire hose, which comprises the following steps: a. processing the plastic raw material of the lining and the knitting raw material of the outer sleeve to respectively obtain a strip blank and a plastic tube blank, and checking to be qualified for later use; b. the strip blank and the plastic tube blank are coiled and respectively placed on the uncoiling mechanism for uncoiling, and are pulled to be placed in a tube penetrating device for tube penetrating, the tube penetrating device comprises a workbench, the workbench is provided with a strip blank conveying line and a plastic tube blank conveying line, the strip blank conveying line comprises a first opening mechanism, a tube penetrating mechanism, a second opening mechanism and a coiling mechanism which are distributed in sequence, a third opening mechanism for cutting off the plastic tube blank is arranged on the plastic tube blank conveying line, and a plurality of guide rollers for guiding the strip blank and the plastic tube blank are distributed among the first opening mechanism, the tube penetrating mechanism, the second opening mechanism, the coiling mechanism and the third opening mechanism. The invention solves the problem of lower production efficiency of the fire hose.
Description
Technical Field
The invention relates to the technical field of production of fire-fighting water belts, in particular to a forming process of a fire-fighting water belt in the production of an outer sleeve and an inner liner of the fire-fighting water belt, pipe penetrating and bonding processes.
Background
The fire hose, as the name implies, is a soft pipe body for conveying high-pressure water or flame-retardant liquid in the fire-fighting process, which is mainly of a double-layer or multi-layer structure, wherein the outer layer is a woven fabric layer, which is mainly woven by polyester yarns/polyester yarns, the inner lining is extruded by materials such as rubber, polyurethane and the like, the outer layer and the inner layer are jointed through glue, the specific forming process is as shown in Chinese patent application CN 110185856A, and the production process of the fire hose comprises the following steps:
step one: preparing lining raw materials and outer sleeve raw materials, and entering the next step after the lining raw materials and the outer sleeve raw materials are checked to be qualified;
step two: putting the lining raw materials into an extruder, extruding the pipe, simultaneously performing a gluing process, inspecting the plastic pipe blank after the completion of the gluing process, performing weft doubling and twisting and warp doubling and twisting on the outer sleeve raw materials, weaving the weft and the warp after the inspection is passed, performing strip inspection after the weaving is completed by weaving equipment, and entering the next step after the plastic pipe blank inspection and the strip inspection have no problems;
step three: the plastic tube blank is conveyed to tube penetrating equipment through a tensioning device for tube penetrating, a belt blank is sleeved outside a plastic tube blank traction rope of the tube penetrating equipment, the belt blank is firstly pulled to the other end through the belt blank traction rope, then one end of the plastic tube blank is clamped through the plastic tube blank traction rope, the plastic tube blank is pulled to the other end from the inside of the belt blank through the plastic tube blank traction rope, and the next step is performed after the sleeve is completed;
step four: clamping one end of a water belt through a clamp with an exhaust port, sleeving the other end of the water belt on the clamp with a high-temperature gas outlet and a cold gas outlet, filling high-temperature gas into the plastic pipe blank, and rapidly filling the cold gas after the glue on the plastic pipe blank is melted to finish the adhesion of the plastic pipe blank and the belt blank;
step five: air-drying, inspecting after the air-drying is finished, and carrying out tape coiling and mark printing after the inspection is qualified;
step six: and selecting whether to tie the buckle according to the requirements of customers, then carrying out finished product inspection, and packaging and warehousing after the inspection is confirmed to be qualified.
The technical scheme shows the basic process of the production of the fire hose at present.
According to national standards, the water band has various different length specifications from the shortest 15 meters to the longest 200 meters, and the production process involves multiple times of traction and pipe penetrating of the water band outer sleeve and the water band inner liner, so that the production continuity is insufficient and the efficiency is low.
Disclosure of Invention
Therefore, the invention provides a forming process of the fire hose, which solves the problem of lower production efficiency of the fire hose.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a molding process of a fire hose comprises the following steps:
a. processing the plastic raw material of the lining and the knitting raw material of the outer sleeve to respectively obtain a strip blank and a plastic tube blank, and checking to be qualified for later use;
b. the method comprises the steps that a strip blank and a plastic tube blank are coiled and are respectively placed on an uncoiling mechanism to be uncoiled, and are pulled to be placed in a tube penetrating device to penetrate tubes, wherein the tube penetrating device comprises a workbench, a strip blank conveying line and a plastic tube blank conveying line are distributed on the workbench, the strip blank conveying line comprises a first opening mechanism, a tube penetrating mechanism, a second opening mechanism and a rolling mechanism which are distributed in sequence, a third opening mechanism for cutting off the plastic tube blank is arranged on the plastic tube blank conveying line, and a plurality of guide rollers for guiding the strip blank and the plastic tube blank are distributed among the first opening mechanism, the tube penetrating mechanism, the second opening mechanism, the rolling mechanism and the third opening mechanism;
b1, defining the length of a product as L, wherein the rest for rejecting waste in the production process is M, cutting the strip blank through a first opening mechanism to form an unbroken notch M1 extending along the radial direction of the strip blank, wherein the length of the strip blank between the notch M1 and the notch M2 is the length of a single fire hose, and the distance of the strip blank is L+m;
b2, continuously conveying the strip blank to enable the notch M1 and the notch M2 to be respectively positioned at two ends of the pipe penetrating mechanism;
b3, pre-sizing the outer surface of the plastic tube blank, inputting the plastic tube blank into the tube penetrating mechanism, penetrating the plastic tube blank into the belt blank through the notch M2, driving the plastic tube blank to be pulled to the notch M1 by the tube penetrating mechanism, and cutting the plastic tube blank into a single-section plastic tube blank with the length of L+m through the third opening mechanism to finish tube penetrating operation;
c. the workbench between the first opening mechanism and the pipe penetrating mechanism is provided with a bonding mechanism for bonding the strip blank and the plastic pipe blank, the bonding mechanism is used for fixing the two ends of the strip blank and the plastic pipe blank after pipe penetrating, one end of the bonding mechanism is introduced with steam to melt the adhesive on the plastic pipe blank, and then cold air is introduced to bond the plastic pipe blank and the strip blank;
d. air-drying;
e. the formed water band is rolled up by the rolling mechanism and sheared along the notch M2, so that the single-section fire hose is formed;
f. taking out the coiled and sheared single-section water band, and placing the subsequent band blank on a winding mechanism so as to enable the band blank to be continuously conveyed;
g. repeating the steps b to f to realize continuous molding of the fire hose.
Preferably, the pipe penetrating mechanism comprises a traction rope, a rope reel used for winding the traction rope and a traction motor used for driving the traction rope to extend/retract, and a clamp used for clamping the strip blank/plastic pipe blank is arranged at the end part of the traction rope;
the pipe penetrating step of the pipe penetrating mechanism comprises the following steps:
b31, when each tape blank passes through the pipe for the first time, the traction rope stretches out to extend to the input end of the pipe passing mechanism, and the tape blank is manually sleeved on the traction rope and extends to the output end of the pipe passing mechanism;
b32, clamping the plastic tube blank by a clamp on the traction rope, penetrating the plastic tube blank into the belt blank, winding the traction rope by a rope reel, recovering the traction rope, driving the plastic tube blank to penetrate and extend to the end part of the belt blank, and finishing primary traction;
b33, loosening the clamp, starting a traction motor, extending a traction rope to the input end of the pipe penetrating mechanism, winding by a winding mechanism after the water band after the first sleeve is bonded in the process, continuously conveying a next section of band blank to be sleeved along with winding action, and sleeving the traction rope;
b34, clamping and removing a section of plastic tube blank by a clamp at the end part of the traction rope, winding and recovering the traction rope by a rope reel, driving a second section of plastic tube blank to penetrate into a second section of belt blank, and completing secondary traction tube penetrating;
b35, repeating the steps b33 and b34 to form continuous pipe penetrating operation.
Preferably, the clamp comprises a connector fixedly connected with the end part of the traction rope, a first clamping arm hinged on the connector, a second clamping arm symmetrical to the first clamping arm and mutually hinged, and a spring arranged between the first clamping arm and the second clamping arm, wherein clamping ends for contacting with the plastic tube blank are arranged on the first clamping arm and the second clamping arm, and clamping convex parts for preventing skid are arranged on the two clamping ends; when the plastic tube blank is placed at the clamping ends at the two sides, the plastic tube blank is symmetrically folded and fixed on the clamping convex parts at the two sides.
Preferably, the bonding mechanism comprises an upper pressing plate and a lower pressing plate, wherein the upper pressing plate and the lower pressing plate are used for clamping the end parts of the strip blank and the plastic pipe blank after pipe penetration, and a pressing plate cylinder for driving the upper pressing plate to be close to/far away from the lower pressing plate is connected to the upper pressing plate;
the workbench is hinged with a ventilation joint for introducing steam and cold air, and a notch for allowing the ventilation joint to pass through is arranged at the joint surface between the upper pressing plate and the lower pressing plate.
Preferably, the first shedding mechanism, the second shedding mechanism and the third shedding mechanism comprise a blade, an anvil part matched with the blade and an shedding cylinder for driving the blade to be close to/far away from the anvil part.
Preferably, the winding mechanism comprises a winding disc, more than two fixing hack levers extending out of the surface of the winding disc, and a movable hack lever elastically contacted with one of the fixing hack levers through a torsion spring, and the winding disc is connected with a winding motor for driving the winding disc to rotate.
Preferably, each of the incisions is located in a lateral middle portion of the strip, and both ends of the incision form unbroken connecting ends.
Preferably, each notch is cut by one side of the strip, a steering mechanism for steering each notch is arranged on the workbench at the rear end of the first opening mechanism, the steering mechanism comprises at least one steering roller set, the steering roller set comprises a roller body, and a friction part for changing the circumferential direction of the notch is arranged on the roller body.
By adopting the technical scheme, the invention has the beneficial effects that:
according to the technical scheme, the production of the fire hose with the length of shorter length, particularly the length of less than 50 meters, is realized by improving the pipe penetrating technology in the production process, winding the hose blank, continuously unreeling, forming a cut which is not broken according to the requirement, carrying out corresponding pipe penetrating operation through the cut, bonding the hose blank and the plastic hose blank on the basis, and matching the uncut part with a winding mechanism of the rear section, so that continuous production molding can be realized.
The process is different from the traditional process that a single-section strip blank and a plastic pipe blank are respectively molded and assembled in a penetrating way after being segmented, the strip blank has enough single-roll length on the premise of meeting the requirement of unreeling of an unreeling mechanism after being produced, the first opening mechanism is used for intermittently forming the notches, the distance between the two notches is adjusted through the unreeling speed of the unreeling mechanism, the distance can be flexibly adjusted according to different length and size of a product requirement, the plastic pipe blank is convenient and quick, and the plastic pipe blank is cut off as required through the third opening mechanism in a similar way, so that the production flexibility is high, and the production steps can be greatly simplified.
In addition, the belt blank is always in a continuous transmission state in the production process, the pipe penetrating mechanism does not need to adopt a plurality of traditional traction ropes to operate, only the belt blank conveying line is matched through a single traction rope, the plastic pipe blank is pulled, the structure of the traditional pipe penetrating equipment is simplified, and the manual operation steps are simplified.
Meanwhile, the continuous conveying is adopted for the strip blank, so that the whole process is in a tensioning state, the penetration of the plastic pipe blank and the subsequent steam bonding are facilitated, and the formed product is good in quality.
Drawings
Fig. 1 is a schematic top view of a pipe penetrating device according to an embodiment of the invention.
Fig. 2 is a schematic view of a partial enlarged structure at a in fig. 1.
Fig. 3 is a partially enlarged schematic structural view of fig. 1 at B.
Fig. 4 is a schematic diagram illustrating a front view direction of a pipe threading device according to an embodiment of the present invention.
Fig. 5 is a partially enlarged schematic view of the structure at C in fig. 4.
Fig. 6 is a schematic view showing a process of penetrating a plastic pipe blank into a strip blank according to a first embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a clamp according to a first embodiment of the present invention.
Fig. 8 is a schematic structural view of an adhesive structure according to a first embodiment of the present invention.
Fig. 9 is a schematic structural view of an adhesive mechanism according to another embodiment of the present invention.
Fig. 10 is a schematic diagram of a reel structure of a winding mechanism according to a first embodiment of the present invention.
Fig. 11 is a schematic diagram of a variation of the second slit according to the embodiment of the present invention.
Fig. 12 is a schematic structural diagram of a steering mechanism according to the second embodiment of the present invention.
Reference numerals: 100. a strip blank; 200. a plastic tube blank; 300. a work table; 1a, a first opening mechanism; 1b, a second opening mechanism; 1c, a third opening mechanism; 11. a blade; 12. an anvil portion; 13. an open cylinder; 2. a pipe penetrating mechanism; 21. a traction rope; 22. rope reel; 23. a traction motor; 24. a clamp; 241. a connector; 242. a first clamp arm; 243. a second clamp arm; 244. a spring; 245. a clamping end; 246. a clamping convex part; 3. a winding mechanism; 31. a reel; 311. a fixing rack rod; 312. a movable hack lever; 313. a torsion spring; 314. a through groove; 32. a winding motor; 4. an adhesive mechanism; 41. an upper press plate; 42. a lower pressing plate; 43. a pressure plate cylinder; 44. a vent fitting; 45. a notch; 5. a steering roller group; 51. friction part.
Detailed Description
The following describes embodiments of the present invention in detail with reference to specific examples, so as to solve the technical problem by applying the technical means to the present invention, and the implementation process for achieving the technical effect can be fully understood and implemented accordingly.
Example 1
Referring to fig. 1 to 5, a process for forming a fire hose includes the steps of:
a. extruding plastic raw materials of the inner lining, braiding the braiding raw materials of the outer sleeve to obtain a strip blank 100 and a plastic tube blank 200 respectively, and checking for later use after passing; the knitting material of the tape blank 100 may be nylon, flax, cotton fiber, ramie, etc., or a mixture of a plurality of materials; the raw material of the plastic tube blank 200 is PVC or polyurethane material.
b. The method comprises the steps that a strip blank 100 and a plastic tube blank 200 are coiled and respectively placed on an uncoiling mechanism to be uncoiled, and are pulled to be placed in a tube penetrating device to penetrate tubes, wherein the tube penetrating device comprises a workbench 300, the workbench 300 is required to ensure that the surface is smooth so as to meet conveying, the workbench 300 is provided with a strip blank 100 conveying line and a plastic tube blank 200 conveying line, the strip blank 100 conveying line comprises a first opening mechanism 1a, a tube penetrating mechanism 2, a second opening mechanism 1b and a coiling mechanism 3 which are sequentially distributed, a third opening mechanism 1c for cutting off the plastic tube blank 200 is arranged on a plastic tube blank 200 conveying line, and a plurality of guide rollers for guiding the strip blank 100 and the plastic tube blank 200 are arranged among the first opening mechanism 1a, the tube penetrating mechanism 2, the second opening mechanism 1b, the coiling mechanism 3 and the third opening mechanism 1 c; structurally, the first shedding mechanism 1a, the second shedding mechanism 1b and the third shedding mechanism 1c comprise a blade 11, an anvil part 12 matched with the blade 11 and an shedding cylinder 13 for driving the blade 11 to be close to/far from the anvil part 12; the relative positions of the cutting edge 11 and the anvil part 12 are different to meet different cutting requirements, the first shedding mechanism 1a is used for realizing the cutting of an uncut opening, the second shedding mechanism 1b is used for separating a rolled finished fire hose from a continuously conveyed band blank 100, and the third shedding mechanism 1c is used for cutting a single-section plastic pipe blank 200;
b1, defining the length of a product as L, wherein the rest for rejecting waste in the production process is M, the strip 100 is cut by a first opening mechanism 1a to form an unbroken notch M1 extending along the radial direction of the strip 100, and the length of the strip 100 between the notch M1 and the notch M2 is the length of a single fire hose, and the distance is L+m; wherein, each notch is positioned at the transverse middle part of the strip 100, and both ends of the notch form unbroken connecting ends, so that when the strip 100 is continuously pulled under force, the connecting ends at both sides can be beneficial to the shape retention of the strip 100 during pulling, reduce deformation, and the plastic pipe blank 200 is filled from the transverse middle part of the strip 100, thereby being more beneficial to the smoothness of the plastic pipe blank 200 during pipe penetrating;
b2, continuously conveying the strip 100, so that the notch M1 and the notch M2 are respectively positioned at two ends of the pipe penetrating mechanism 2;
b3, pre-sizing the outer surface of the plastic tube blank 200, inputting the pre-glued plastic tube blank into the tube penetrating mechanism 2, penetrating the plastic tube blank into the strip blank 100 through the notch M2, driving the plastic tube blank 200 to be pulled to the notch M1 by the tube penetrating mechanism 2, and cutting the plastic tube blank 200 into a single-section plastic tube blank 200 with the length of L+m through the third opening mechanism 1c to finish tube penetrating operation; the reserved length m is set for meeting the requirements of subsequent interface operation and production tolerance, and the length requirement of the produced fire hose is guaranteed.
The glue dipping component can be added in the process of producing the plastic pipe blank 200 in the glue applying process, and the bonding effect can be automatically formed in the subsequent high-temperature bonding process; the sizing process is performed mostly immediately after the plastic pipe blank 200 is formed and cooled, and the specific process and equipment are well known to those skilled in the art, and will not be described in detail herein.
Structurally, the pipe penetrating mechanism 2 comprises a traction rope 21, a rope reel 22 for winding the traction rope 21, and a traction motor 23 for driving the traction rope 21 to extend and retract, wherein a clamp 24 for clamping the strip blank 100/the plastic pipe blank 200 is arranged at the end part of the traction rope 21; the traction rope 21 has a certain quality and is not easily deformed, and can maintain its position and not deform when the strip 100 passes through its outer surface.
The pipe penetrating step of the pipe penetrating mechanism 2 includes:
b31, when each roll of the strip blank 100 passes through the pipe for the first time, the traction rope 21 stretches out to extend to the input end of the pipe passing mechanism 2, and the strip blank 100 is manually sleeved on the traction rope 21 and extends to the output end of the pipe passing mechanism 2;
b32, clamping the plastic tube blank 200 by the clamp 24 on the traction rope 21 to penetrate into the strip blank 100, winding the traction rope 21 by the rope reel 22, recovering the traction rope 21, driving the plastic tube blank 200 to penetrate into and extend to the end part of the strip blank 100, and finishing primary traction;
b33, loosening the clamp 24, starting the traction motor 23, extending the traction rope 21 to the input end of the pipe penetrating mechanism 2, winding the water band after the first sleeve is bonded by the winding mechanism 3, continuously conveying the next section of the band blank 100 to be sleeved along with the winding action, and sleeving the traction rope 21;
b34, clamping and removing a first section of plastic tube blank 200 by a clamp 24 at the end part of the traction rope 21, winding and recovering the traction rope 21 by a rope reel 22, driving a second section of plastic tube blank 200 to penetrate into a second section of belt blank 100, and completing secondary traction tube penetrating;
b35, repeating the steps b33 and b34 to form continuous pipe penetrating operation. In this form, each roll of strip 100 is only required to be manually threaded through the pull cord 21 when the strip 100 is first formed; a spare pull rope 21 for the first pipe threading can be provided to further improve efficiency and reduce operating time.
In this embodiment, referring to fig. 6 and 7, the clamp 24 includes a connector 241 fixedly connected to the end of the traction rope 21, a first clamping arm 242 hinged to the connector 241, a second clamping arm 243 symmetrical to the first clamping arm 242 and hinged to each other, and a spring 244 disposed between the first clamping arm 242 and the second clamping arm 243, wherein the first clamping arm 242 and the second clamping arm 243 are respectively provided with a clamping end 245 for contacting with the plastic tube blank 200, and the two clamping ends 245 are respectively provided with a clamping protrusion 246 for preventing slipping; when the plastic tube blank 200 is placed at the two side clamping ends 245, the plastic tube blank 200 is symmetrically folded and fixed on the clamping protrusions 246 at the two sides, wherein the first clamping arm 242 and the second clamping arm 243 can rotate along the hinge and are affected by the spring 244, the two clamping ends 245 are always kept in contact, the clamping protrusions 246 at the two sides are staggered with each other to ensure the clamping compactness, and meanwhile, when the plastic tube blank 200 is clamped and pulled, a soft pad can be arranged at the folding position of the plastic tube blank 200 to reduce the damage of the clamping to the outer surface of the plastic tube blank and ensure the stability when the plastic tube blank is clamped and pulled.
c. The workbench 300 between the first opening mechanism 1a and the pipe penetrating mechanism 2 is provided with a bonding mechanism 4 for bonding the strip 100 and the plastic pipe blank 200, referring to fig. 8 and 9, the bonding mechanism 4 fixes two ends of the strip 100 and the plastic pipe blank 200 after pipe penetrating, one end is introduced with steam to melt the adhesive on the plastic pipe blank 200, and then is introduced with cold air to bond the plastic pipe blank 200 and the strip 100; structurally, the bonding mechanism 4 comprises an upper pressing plate 41 and a lower pressing plate 42 for clamping the end parts of the through pipe rear belt blank 100 and the plastic pipe blank 200, and a pressing plate cylinder 43 for driving the upper pressing plate 41 to be close to/far away from the lower pressing plate 42 is connected to the upper pressing plate 41.
The workbench 300 is hinged with a ventilation joint 44 for introducing steam and cold air, and a notch 45 for allowing the ventilation joint 44 to pass is arranged at the connecting surface between the upper pressing plate 41 and the lower pressing plate 42; wherein, the ventilation joint 44 is internally provided with an independent steam joint and a cold air joint which are correspondingly connected with different air sources, the ventilation joint 44 penetrates into the plastic tube blank 200, and then the upper pressing plate 41 and the lower pressing plate 42 are pressed to fix the belt blank 100 and the plastic tube blank 200; structurally, the ventilation structure is a hinge structure which can be rotated to the lower side when penetrating the pipe, and can realize yielding for conveying the strip blank 100 and can be turned upwards when needed; currently, the rotation of the vent fitting 44 is manually operated to ensure alignment with the plastic inner tube.
d. Air-drying; the air drying process may be performed in the form of direct blowing by an external fan.
e. The formed hose is coiled into a roll by the coiling mechanism 3, and the second opening mechanism 1b acts and is sheared along the notch M2, so that the forming of the single-section fire hose is completed.
f. Taking out the coiled and sheared single-section water band, and placing the subsequent band blank 100 on the winding mechanism 3 so as to enable the band blank 100 to be continuously conveyed; referring to fig. 10, the winding mechanism 3 includes a winding disc 31, two fixing frame rods 311 extending out of the surface of the winding disc 31, and a movable frame rod 312 elastically contacting with one of the fixing frame rods 311 through a torsion spring 313, the movable frame rod 312 passes through a through slot 314 on the winding disc 31 and is in parallel contact with the fixing frame rod 311, the winding disc 31 is connected with a winding motor 32 for driving the winding disc to rotate, the winding motor 32 drives the winding disc 31 to realize rotation, when winding, the movable frame rod 312 is pulled to move along the through slot 314 to separate from the fixing frame rod 311, one end of the formed fire hose is clamped between the two, the movable frame rod 312 is reset by the elasticity of the torsion spring 313 to clamp a water band, and then automatic winding is realized along with the rotation of the winding disc 31; the structure is simple and is beneficial to operation.
g. Repeating the steps b to f to realize continuous molding of the fire hose.
According to the technical scheme, aiming at the production of fire hose with shorter length, particularly with the length of less than 50 meters, in the production process, the hose 100 is coiled, continuously unreeled, after a continuous notch is formed according to the requirement, corresponding hose penetrating operation is carried out through the notch, after the hose 100 and the plastic hose 200 are bonded on the basis, continuous production and molding can be realized through the non-cut part matched with the winding mechanism 3 at the rear section.
The process is different from the traditional process that the single-section strip blank 100 and the plastic pipe blank 200 are respectively molded and assembled into sections and then are penetrated into pipes, the strip blank 100 has enough single-roll length on the premise of meeting the requirement of unreeling of an unreeling mechanism after being produced, the first opening mechanism 1a is used for intermittently opening the notches, the distance between the two notches is adjusted by the unreeling speed of the unreeling mechanism, the flexible adjustment can be realized according to different length and size of the required product, the convenience and the rapidness are realized, the plastic pipe blank 200 is cut off as required by the third opening mechanism 1c in the same way, the adaptive production is realized, the production flexibility is high, and the production steps can be greatly simplified.
In addition, the strip blank 100 is always in a continuous transmission state in the production process, the pipe penetrating mechanism 2 does not need to adopt a plurality of traditional traction ropes 21 for operation, only needs to be matched with a strip blank 100 conveying line through a single traction rope 21 to pull the plastic pipe blank 200, so that the structure of the traditional pipe penetrating equipment is simplified, and the manual operation steps are simplified.
Meanwhile, the continuous conveying of the strip blank 100 is adopted, so that the whole process is in a tensioning state, the penetration of the plastic tube blank 200 and the subsequent steam bonding are facilitated, and the formed product has good quality.
Example two
Referring to fig. 11 and 12, in comparison with the first embodiment, each of the slits is cut from one side of the strip 100, and a steering mechanism for steering each slit is provided on the table 300 at the rear end of the first slitting mechanism 1a, and the steering mechanism includes a steering roller group 5, and the steering roller group 5 includes a roller body provided with a friction portion 51 for changing the circumferential direction of the slit. The notch is located at one side of the strip 100, the friction parts 51 on the two roller bodies distributed at the upper end and the lower end are symmetrically arranged, the friction part 51 at one side of the upper end extends inwards from the end part of the roller body, the friction part 51 at one side of the lower end extends outwards from the inside of the roller body, and the notch is turned by 90 degrees from one side of the strip 100 along with the rotation of the turning roller group 5 to be changed into a transverse opening structure transversely distributed on the upper surface of the strip 100; the turning roller sets 5 are connected with a moving member for contacting the strip 100, such as a driving structure of an air cylinder, etc., and the turning roller sets 5 are driven to contact the strip 100 when the action is required; the transverse width of the original notch is increased, so that the width of the penetrating opening of the plastic tube blank 200 is increased, the uniformity of the strip blank 100 in unreeling stress can be improved, the strip blank is not easy to stretch and damage, and compared with the middle transverse opening form of the first embodiment, the width of the opening is increased, so that the plastic tube blank 200 can be conveniently penetrated; in particular, the glue accumulation amount at the notch can be reduced for the glued plastic pipe blank 200, and the glue amount during gluing can be reduced.
Wherein the friction part 51 is an elastic lattice type bulge structure; also, a plurality of steering roller sets 5 may be provided according to the length of the line to achieve gradual steering, avoiding damage to the surface of the strip 100 caused by sudden oblique forces.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The forming process of the fire hose is characterized by comprising the following steps of:
a. processing the plastic raw material of the lining and the knitting raw material of the outer sleeve to respectively obtain a strip blank (100) and a plastic tube blank (200), and checking for later use after passing;
b. the method comprises the steps that a strip blank (100) and a plastic tube blank (200) are coiled and respectively placed on an uncoiling mechanism to be uncoiled, and are pulled to be placed in a tube penetrating device to penetrate tubes, the tube penetrating device comprises a workbench (300), a strip blank (100) conveying line and a plastic tube blank (200) conveying line are arranged on the workbench (300), the strip blank (100) conveying line comprises a first opening mechanism (1 a), a tube penetrating mechanism (2), a second opening mechanism (1 b) and a coiling mechanism (3) which are distributed in sequence, a third opening mechanism (1 c) for cutting off the plastic tube blank (200) is arranged on a plastic tube blank (200) conveying line, and a plurality of guide rollers for guiding the strip blank (100) and the plastic tube blank (200) are arranged among the first opening mechanism (1 a), the tube penetrating mechanism (2), the second opening mechanism (1 b), the coiling mechanism (3) and the third opening mechanism (1 c);
b1, defining the length of a product as L, wherein the rest for rejecting waste in the production process is M, the strip blank (100) is cut by a first opening mechanism (1 a) to form an unbroken notch M1 extending along the radial direction of the strip blank, and the length of the strip blank (100) between the notch M1 and the notch M2 is the length of a single fire hose, and the distance of the strip blank is L+m;
b2, continuously conveying the strip blank (100) to enable the notch M1 and the notch M2 to be respectively positioned at two ends of the pipe penetrating mechanism (2);
b3, pre-sizing the outer surface of the plastic tube blank (200), inputting the pre-glued plastic tube blank into the tube penetrating mechanism (2), penetrating the plastic tube blank (200) into the belt blank (100) through the notch M2, driving the plastic tube blank (200) to be pulled to the notch M1 by the tube penetrating mechanism (2), and cutting off the plastic tube blank (200) into a single-section plastic tube blank (200) with the length of L+m by the third opening mechanism (1 c) to finish tube penetrating operation;
c. the workbench (300) between the first opening mechanism (1 a) and the pipe penetrating mechanism (2) is provided with a bonding mechanism (4) for bonding the strip blank (100) and the plastic pipe blank (200), the bonding mechanism (4) is used for fixing the strip blank (100) and two ends of the plastic pipe blank (200) after pipe penetrating, one end is introduced with steam to melt the adhesive on the plastic pipe blank (200), and then is introduced with cold air to bond the plastic pipe blank (200) and the strip blank (100);
d. air-drying;
e. the formed water band is coiled into a roll by the coiling mechanism (3), and is sheared along the notch M2, so that the forming of the single-section fire hose is completed;
f. taking out the coiled and sheared single-section water band, and placing the subsequent band blank (100) on a winding mechanism (3) so as to enable the band blank (100) to be continuously conveyed;
g. repeating the steps b to f to realize continuous molding of the fire hose;
the pipe penetrating mechanism (2) comprises a traction rope (21), a rope disc (22) used for winding the traction rope (21) and a traction motor (23) used for driving the traction rope (21) to extend/retract, and a clamp (24) used for clamping the belt blank (100)/the plastic pipe blank (200) is arranged at the end part of the traction rope (21);
the pipe penetrating step of the pipe penetrating mechanism (2) comprises the following steps:
b31, when each roll of the strip blank (100) is threaded for the first time, the traction rope (21) stretches out to extend to the input end of the pipe threading mechanism (2), and the strip blank (100) is manually sleeved on the traction rope (21) and extends to the output end of the pipe threading mechanism (2);
b32, clamping the plastic tube blank (200) by a clamp (24) on the traction rope (21) to penetrate into the belt blank (100), winding the traction rope (21) by a rope reel (22), recovering the traction rope (21), driving the plastic tube blank (200) to penetrate into and extend to the end part of the belt blank (100), and completing primary traction;
b33, loosening the clamp (24), starting the traction motor (23), extending the traction rope (21) to the input end of the pipe penetrating mechanism (2), winding the water band after the first sleeve is bonded by the winding mechanism (3), continuously conveying the next section of belt blank (100) to be sleeved along with the winding action, and sleeving the traction rope (21) in;
b34, clamping a section of plastic tube blank (200) by a clamp (24) at the end part of the traction rope (21), winding and recovering the traction rope (21) by a rope reel (22), driving a second section of plastic tube blank (200) to penetrate into a second section of belt blank (100), and completing secondary traction tube penetrating;
b35, repeating the steps b33 and b34 to form continuous pipe penetrating operation.
2. The process for forming a fire hose according to claim 1, wherein: the clamp (24) comprises a connector (241) fixedly connected with the end part of the traction rope (21), a first clamping arm (242) hinged on the connector (241), a second clamping arm (243) symmetrical to the first clamping arm (242) and hinged to each other, and a spring (244) arranged between the first clamping arm (242) and the second clamping arm (243), wherein the first clamping arm (242) and the second clamping arm (243) are respectively provided with a clamping end (245) for contacting with the plastic tube blank (200), and the two clamping ends (245) are provided with clamping convex parts (246) for skid prevention;
when the plastic tube blank (200) is placed at the two-side clamping ends (245), the plastic tube blank (200) is symmetrically folded and fixed on the two-side clamping convex parts (246).
3. The process for forming a fire hose according to claim 1, wherein: the bonding mechanism (4) comprises an upper pressing plate (41) and a lower pressing plate (42) which are used for clamping the end parts of the pipe penetrating rear belt blank (100) and the plastic pipe blank (200), and the upper pressing plate (41) is connected with a pressing plate cylinder (43) which drives the upper pressing plate (41) to be close to/far away from the lower pressing plate (42);
the workbench (300) is hinged with a ventilation joint (44) for introducing high-temperature steam and cold air, and a notch (45) for allowing the ventilation joint (44) to pass is formed in the connecting surface between the upper pressing plate (41) and the lower pressing plate (42).
4. The process for forming a fire hose according to claim 1, wherein: the first shedding mechanism (1 a), the second shedding mechanism (1 b) and the third shedding mechanism (1 c) comprise a blade (11), an anvil part (12) matched with the blade (11) and an shedding cylinder (13) for driving the blade (11) to be close to/far away from the anvil part (12).
5. The process for forming a fire hose according to claim 1, wherein: the winding mechanism (3) comprises a winding disc (31), more than two fixing hack levers (311) extending out of the surface of the winding disc (31), and a movable hack lever (312) elastically contacted with one fixing hack lever (311) through a torsion spring (313), wherein the winding disc (31) is connected with a winding motor (32) for driving the winding disc to rotate.
6. The process for forming a fire hose according to claim 1, wherein: each of the cuts is located in the transverse middle of the strip (100) and both ends of the cuts form unbroken connecting ends.
7. The process for forming a fire hose according to claim 1, wherein: each notch is cut by one side of the strip blank (100), a steering mechanism for steering each notch is arranged on a workbench (300) at the rear end of the first opening mechanism (1 a), the steering mechanism comprises at least one steering roller set (5), the steering roller set (5) comprises a roller body, and a friction part (51) for changing the circumferential direction of the notch is arranged on the roller body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310977256.7A CN116728800B (en) | 2023-08-04 | 2023-08-04 | Forming process of fire hose |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310977256.7A CN116728800B (en) | 2023-08-04 | 2023-08-04 | Forming process of fire hose |
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| CN116728800B true CN116728800B (en) | 2023-11-10 |
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| WO2002098633A1 (en) * | 2001-06-04 | 2002-12-12 | Nagai Kosho Co., Ltd. | Pipeline lining method and lining replacing method |
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| CN106003770A (en) * | 2016-06-29 | 2016-10-12 | 中裕软管科技有限公司 | Novel myriameter rubber water hose production process |
| CN106626426A (en) * | 2016-12-15 | 2017-05-10 | 中裕软管科技有限公司 | One-time formed rubber double-face rubber hose and process thereof |
| CN110185856A (en) * | 2019-07-03 | 2019-08-30 | 南通亚龙消防器材有限公司 | A kind of fire hose production technology |
| CN215550954U (en) * | 2021-06-08 | 2022-01-18 | 江苏宝金利消防科技有限公司 | Fire hose jacketing machine |
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2023
- 2023-08-04 CN CN202310977256.7A patent/CN116728800B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002098633A1 (en) * | 2001-06-04 | 2002-12-12 | Nagai Kosho Co., Ltd. | Pipeline lining method and lining replacing method |
| CN101892859A (en) * | 2010-03-15 | 2010-11-24 | 长春长龙塑料制品有限公司 | Mine life belt tubular product and manufacturing method thereof |
| CN104147734A (en) * | 2014-06-11 | 2014-11-19 | 浙江恒安消防安全设备有限公司 | Fire hose with double-layer hose billet and manufacturing method of fire hose with double-layer hose billet |
| CN106003770A (en) * | 2016-06-29 | 2016-10-12 | 中裕软管科技有限公司 | Novel myriameter rubber water hose production process |
| CN106626426A (en) * | 2016-12-15 | 2017-05-10 | 中裕软管科技有限公司 | One-time formed rubber double-face rubber hose and process thereof |
| CN110185856A (en) * | 2019-07-03 | 2019-08-30 | 南通亚龙消防器材有限公司 | A kind of fire hose production technology |
| CN215550954U (en) * | 2021-06-08 | 2022-01-18 | 江苏宝金利消防科技有限公司 | Fire hose jacketing machine |
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|---|---|
| CN116728800A (en) | 2023-09-12 |
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