JP3911694B2 - Rubber hose manufacturing method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for manufacturing a rubber hose in which an unvulcanized rubber hose is vulcanized and a vulcanized rubber hose having a predetermined marking can be continuously obtained.
[0002]
[Prior art]
When vulcanizing an unvulcanized rubber hose such as a bent rubber pipe, there are a continuous vulcanization method and a batch vulcanization method. As a method of continuous vulcanization, a molding mandrel is installed to circulate between a vulcanization zone where the rubber hose is vulcanized by hot air at normal pressure and an outside air zone where the vulcanized rubber hose is removed and an unvulcanized rubber hose is inserted. A method for continuously manufacturing a rubber hose is known (see, for example, Patent Documents 1 and 2).
[0003]
Patent Document 1 discloses a rubber hose vulcanization method in which a molding mandrel is attached to a support base and vulcanized in a continuous cycle while circulating the vulcanization zone and the outside air zone on the same plane. In the method, a plurality of mandrels are fixed to one plate-like support base, and the same or different shaped rubber hoses are grouped together with the support base as a unit. For this reason, if it is attempted to add subsequent processes such as washing, drying and marking after the vulcanization process, it is difficult to synchronize and the support base becomes relatively large. If an apparatus is to be provided, the entire apparatus becomes very large, which requires equipment costs, which is not preferable.
[0004]
In Patent Document 2, a rubber hose is manufactured by dividing a vulcanization zone into an upper stage and a lower stage and circulating a chevron steel-like mounting base on which a molding mandrel is attached to the vulcanization zone and the outside air zone in three dimensions. However, in this case as well, since a plurality of mandrels are attached in units of one mounting base as in the above-mentioned Patent Document 1, it is difficult to easily add a post-process.
[0005]
Therefore, in the conventional manufacturing method, it is not possible to add a post-process continuously after the vulcanization process, so after vulcanizing the rubber hose, the vulcanized rubber hose is put into a fluidized bed etc. Was flowing. In this subsequent process, batch cleaning was performed using a dedicated device in the washing and drying process, and a dedicated jig was prepared according to the shape of the rubber hose in the marking process, and marking was performed manually. The time was long, and there were problems such as the occurrence of reserves of fluid rice cake that moved between each process, an increase in in-process inventory, and securing storage space.
[0006]
In view of such circumstances, there has been proposed a method for manufacturing a rubber bent pipe in which processing such as vulcanization, washing and drying, and marking are performed in series (for example, Patent Document 3). In this Patent Document 3, a mounting station for inserting a rubber hose into a mandrel around a batch type vulcanizing can, a mounting / removing station for removing / attaching a mandrel unit to which a mandrel is attached, and marking are given. A marking station, a rubber tube extraction station that pulls out the rubber tube from the mandrel, etc. are arranged, connected between them by various conveying devices such as conveyor devices and transfer devices, and the mandrel unit with multiple mandrels mounted on the pallet and transported above An apparatus is described that is transported by an apparatus and that performs various processes by a robot.
[0007]
However, in the above apparatus, since a mandrel unit having a plurality of mandrels is set as one unit and is conveyed for each mandrel unit, a dedicated conveying apparatus is required, the entire apparatus becomes large, and the equipment cost increases. There is a fear. In addition, when the mandrel unit is separated or re-fixed from the pallet on the conveyor device at the installation / removal station, there is a risk of causing problems during transportation if it is not securely positioned and locked. At the same time, it is necessary to attach or remove the mandrel unit to the mandrel frame, so that continuous and consistent production cannot be achieved, and production lead time is also required.
[0008]
Further, in the above apparatus, since the marking process is performed by a robot, it is necessary to make the mandrel unit special, and precise position control of the mandrel unit on the conveyor is required, which complicates the operation of the robot. In the case where different varieties are mixed in multi-product and small-quantity production, there is a problem that it is very difficult to perform continuous processing accurately and correctly for various varieties.
[0009]
[Patent Document 1]
Japanese Patent Publication No. 5-19885 (Claims, Fig. 2)
[Patent Document 2]
Japanese Examined Patent Publication No. 7-61652 (Claims, FIGS. 1 to 4)
[Patent Document 3]
JP-A-10-16078 (Claims, [0031] to [0161], FIGS. 1 to 44)
[0010]
[Problems to be solved by the invention]
The problem to be solved by the present invention is that after vulcanizing an unvulcanized rubber hose, it is possible to continuously perform post-processes such as washing, drying, marking, etc., enabling continuous integrated production, reducing lead time, and attaching a mandrel Rubber hose manufacturing method and apparatus that can solve conventional problems such as simplified means and transport means, mixed-flow production of irregularly shaped products, prevention of forgetting marking, simple structure and economical acquisition Is to provide.
[0011]
[Means for Solving the Problems]
According to the present invention, a vulcanizing furnace for vulcanizing a rubber hose with hot air at normal pressure, an inward conveyance path passing through the inside of the vulcanizing furnace, a cleaning / drying zone provided outside the vulcanizing furnace, a marking zone, It has a conveying means that circulates an outer conveying path that passes through the desorption zone, and a plurality of mandrels are arranged in series in the traveling direction intermittently by the conveying means, and the unvulcanized rubber hose attached to the mandrel is The vulcanized rubber hose is vulcanized in the inner conveyance path and is attached to the mandrel in the washing and drying zone and marking zone of the outer conveyance path, washed and dried, and then marked from the mandrel in the desorption zone. The rubber hose is characterized in that after the vulcanized rubber hose is pulled out and an unvulcanized rubber hose is inserted into the mandrel, the mandrel is transferred to the inner conveyance path. Concrete method is provided, the problems are solved.
[0012]
Further, according to the present invention, a vulcanizing furnace for vulcanizing a rubber hose with hot air at normal pressure, an inner conveyance path passing through the inside of the vulcanizing furnace, and a cleaning / drying zone provided outside the vulcanizing furnace, A conveying means that circulates in the outer conveying path that passes through the marking zone and the desorption zone, and a mandrel attached to the conveying means that holds the mandrel and is transferred in series in the traveling direction. Stand And a cleaning / drying means for spraying and drying a cleaning liquid on a rubber hose attached to the mandrel provided in the cleaning / drying zone, and a marking means for marking the rubber hose attached to the mandrel provided in the marking zone, A rubber hose manufacturing apparatus is provided in which a vulcanized rubber hose is pulled out from a mandrel that has passed through the marking zone in the desorption zone, and an unvulcanized rubber hose is inserted into the mandrel. The
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show an embodiment of the production apparatus (1) according to the present invention. As shown in FIGS. 1 and 2, a vulcanizing furnace (2) for vulcanizing a rubber hose with hot air at normal pressure, and the vulcanizing furnace (2) It has a conveyance means (5) circulating through an inner conveyance path (3) passing through the inside and an outer conveyance path (4) around the outer periphery of the vulcanizing furnace (2), and this outer conveyance The path (4) is provided with a washing and drying zone (6), a marking zone (7), and a desorption zone (8). The vulcanizing furnace (2) includes a gas combustion device such as LPG, a heating means such as a heater, a circulating mechanism for heated air, a temperature control mechanism using a temperature sensor, etc. so that hot air at normal pressure circulates in the vulcanizing furnace. In addition, if desired, the inside of the furnace is divided into a plurality of heating zones and is configured to be vulcanized stepwise as shown in Patent Document 2 above.
[0014]
As the transport means (5), an appropriate mechanism can be used, but in the embodiment shown in the figure, a roller chain (9) is used, and the roller chain (9) is provided at an appropriate place of the sprocket (10). An intermittent drive mechanism (not shown) having an air cylinder or other appropriate mechanism is provided to drive intermittently, thereby moving while moving and stopping at a predetermined tact.
[0015]
A plurality of mandrels are arranged in series in the traveling direction on the roller chain (9) of the conveying means. FIG. 3 shows an embodiment of the mounting state of the mandrel (11). The roller chain (9) is provided with a mandrel mounting base (12) for mounting the mandrel. The mandrel mount (12) includes a support plate (13) extending in a direction transverse to the traveling direction, a mounting cylinder (14) and a presser pin (15) standing on the support plate (13), A mounting screw (17) in which a hollow connecting pin portion is inserted into the mounting hole (16) formed in the plate (13) from the lower side of the roller chain (9) and the tip protrudes upward from the roller chain (9). Are fixed to the roller chain (9) at predetermined intervals. A pin (18) for preventing rotation projects from the mounting cylinder (14), and the support plate (13) is an appropriate guide member (19) provided along the transport path of the transport means. And so on.
[0016]
The mandrel (11) is fixed to the support cylinder (20) via a mounting plate (21) fixed to the upper surface of the support cylinder (20) or the side surface of the support cylinder (20) as shown in FIG. The support cylinder (20) is fixed on the mandrel plate (22). A connecting cylinder (24) having a slit (23) is formed below the mandrel plate (22), and the connecting cylinder (24) is detachable from the mounting cylinder (14) on the support plate (13). It is inserted. At this time, the pin (18) is inserted into the slit (23) to facilitate fitting, and the mandrel (11) is prevented from rotating. In the embodiment shown in the figure, the connecting tube (24) is fitted inside the mounting tube (14), but the connecting tube can be fitted outside the mounting tube by changing the inner diameter. The pin (18) and slit (23) can also be omitted if the fitting part of the mounting cylinder and the connecting cylinder is formed in an irregular cross-sectional shape, and the mandrel can be attached to the mounting base with other appropriate configurations. It may be.
[0017]
On the side plate (25) of the mandrel plate (22) is an identification unit for displaying the type information of the rubber hose attached to the mandrel (11), in the figure the product identification plate (26) is a screw (27) It is attached by. As will be described later, the product identification plate (26) is provided with an identification signal corresponding to the identification detecting means used when marking in the marking zone. In the embodiment shown in the figure, there are provided through holes (29) that serve as a display for identifying the type of rubber hose so that it can be detected by a camera (28) that performs pattern recognition or a photoelectric sensor, etc. The display pattern of the presence or absence of the through hole (29) is detected by the camera or the like to identify the type of rubber hose attached to the mandrel and to output a detection signal.
[0018]
When molding the same rubber hose, the mandrel (11) may be prepared by attaching a large number of the same mandrels, and the mandrel mounting base (12) by mixing the same or different shape mandrels corresponding to various rubber hoses. In the case of attaching to the device, it is preferable to attach them in order for each product type.
[0019]
The unvulcanized rubber hose (30) attached to the mandrel (11) is vulcanized while passing through the inner conveyance path (3) passing through the vulcanizing furnace (2), and the vulcanizing furnace (2) Exits and enters the outer conveyance path (4). The first zone of the outer conveyance path is provided with a washing and drying zone (6) for washing the release agent attached to the rubber hose. Yes. The washing / drying device (31) in the washing / drying zone has a housing (32) that opens in the front-rear direction, and a receiving tray (33) that collects drainage is provided below. Inside the scattering prevention curtain (34) provided at the inlet of the housing (32) is a nozzle (35) that jets cleaning liquid such as water, hot water, chemicals, etc. in a shower-like manner, and air is supplied to the outlet side. A nozzle (36) is provided for spraying and blowing away the cleaning liquid to dry it. In this way, the vulcanized rubber hose (37) is washed and dried while passing through the washing and drying zone (6) and sent to the next step.
[0020]
Next to the cleaning / drying zone (6), a marking zone (7) is provided. At this time, if the mandrel (11) that has reached the marking zone (7) is lifted from the mandrel mounting base (12) due to vibration, impact, etc. during movement, marking cannot be applied to a predetermined part of the rubber hose. Therefore, it is preferable to provide a presser device so as to ensure the mandrel mounting state before the marking zone. FIG. 5 shows an embodiment of the presser device (38), in which a presser plate (40) having an insertion groove (39) that can be inserted from the side is formed on the support tube (20) of the mandrel (11), A support shaft (41) provided on the presser plate (40) is pivotally supported on the movable plate (42). The movable plate (42) is provided with cylinders (44), (45) such as an air cylinder for swinging the presser plate (40) in the direction of the arrow (43), and the movable plate (42 ) Is provided so as to advance and retreat in the direction of the arrow (47) by the cylinder (46).
[0021]
The presser device (38) is controlled to operate when the mandrel (11) moves to a position facing the presser device (38) and stops, and drives the cylinder (46) to move the movable plate ( 42) is advanced, the support cylinder (20) of the mandrel (11) is inserted into the insertion groove (39) of the presser plate (40), and the cylinder (44) is driven to move the tip of the presser plate (40). Is lowered, the mandrel plate (22) is pushed, and the connecting tube (24) is securely inserted into the mounting tube (14) of the mandrel mounting base (12). Thereafter, the cylinder (45) is driven to raise the tip of the presser plate (40), and the cylinder (46) is driven to retract the movable plate (42).
[0022]
The marking zone (7) is provided with a product identification detection mechanism including the camera (28) as described above. As shown in FIG. 6 (A), on the product identification plate (26) of the mandrel (11), the type information of the rubber hose (37) attached to the mandrel (11) is displayed by the presence or absence of the through hole (29). Since the identification signal is provided, when the mandrel moves to a position facing the camera (28) and stops, the identification signal is pattern-recognized by the camera (28) and a detection signal is output to the control unit.
[0023]
The marking zone (7) is provided with marking devices (48) corresponding to a plurality of types of rubber hoses. The marking is a positioning paint applied to the hose for the purpose of preventing the position of the rubber hose from being assembled in a predetermined position such as a piping path of an automobile or industrial machine, and white, yellow, red, A paint color such as blue is applied to a predetermined position of the rubber hose in an appropriate shape such as a round shape, a rod shape, or a belt shape.
[0024]
For this purpose, a plurality of marking devices are prepared. For example, as shown in FIG. 7A, when marking (49) is performed on the front (front) side of the rubber hose (37), ) And (C) are used. When the apparatus is stopped, the marker (51) is applied to the stamp (50) to attach the paint to the marker (51). This paint is supplied to the stamp (50) from the ink supply port (52). In operation, the stamp (50) is lowered by the cylinder (53), and the cylinder (54) is further driven to advance the marker portion, and then the marker (51) is moved to the rubber hose (37) by the cylinder (55). Press against the surface and mark the front (front) side of the hose. Thereafter, the marker (51) is retracted by the cylinders (55) and (54), and the stamp (50) is raised by the cylinder (53) and applied to the front surface of the marker (51).
[0025]
As shown in FIG. 8A, when marking is performed on the side surface of the rubber hose 37, an apparatus as shown in FIG. 8B is used. In the apparatus shown in FIG. 7B, as shown in FIGS. 7B and 7C, a mechanism such as a cylinder (54) for advancing and retracting the entire marker in the direction of the arrow (56) is omitted. Then, a marker plate (57) that holds the marker (51) facing both sides or one side of the stamp (50) is swingably provided, and the rear end of the marker plate (57) is connected to an appropriate link mechanism (58). The tip of the marker plate (57) is opened and closed in the direction of the arrow (60) by opening and closing with the cylinder (59) through the like. Then, the cylinder (59) is brought close to the rubber hose with the tip of the marker plate (57) being opened, and then the tip of the marker plate (57) is moved in the closing direction so that the marker (51 ) To mark the side.
[0026]
As shown in FIG. 9 (A), when marking on the lower surface side of the rubber hose (37), as shown in FIG. 9 (B), a marker plate having a marker (51) on the lower surface side of the stamp (50) ( 61) may be provided, and the marker plate (61) may be brought close to the lower surface side of the rubber hose (37) to mark the lower surface.
[0027]
Since the marker of the marking device contacts the rubber hose at the time of marking as described above, the mandrel mounting base (12) that supports the rubber hose may move in the lateral direction. Therefore, it is possible to use appropriate holding means for reliably holding the mandrel mounting base (12) from the side facing the marking device. FIG. 10 shows an embodiment thereof, and the retaining device (62) is opposed to the presser pin (15) provided at the rear of the mounting cylinder (14) of the support plate (13) of the mandrel mounting base (12). An insertion piece (64) having an insertion groove (63) is formed, and the insertion piece (64) is provided by a cylinder (65) so as to advance and retreat in the direction of an arrow (66). Then, when driving the marking device, the cylinder (65) is operated, the presser pin (15) is inserted into the insertion groove (63), and the mandrel mounting base (12) from the side facing the marking device. Hold it to rub.
[0028]
The marking zone (7) is provided with a preventing means for preventing displacement of the mandrel mount in the traveling direction during marking. FIG. 11 shows an embodiment of a misalignment prevention mechanism, which has an engagement claw (67) fitted between rollers of the roller chain (9) in the vicinity of the marking device. A tool (68) and a cylinder (69) for driving the fitting jig (68) are included. A sensor (70) is provided above the conveyance path, and the sensor (70) is provided with a mandrel mount (12) conveyed intermittently by the roller chain (9) in the marking zone. When it moves and stops, it detects that the mandrel mount has reached a predetermined position. Based on this detection signal, the cylinder (69) operates and the fitting jig (68) moves forward to engage the engaging claws between the rollers of the roller chain (9). As a result, the position of the mandrel mounting base (12) in the advancing direction is corrected via the roller chain (9), and the rubber hose attached to the mandrel is accurately stopped at a fixed position to prevent the positional deviation. Marking can be applied to the position.
[0029]
Further, the clamp means for holding the mandrel is operated in conjunction with the operation of the position deviation prevention means by the stop detection signal from the sensor (70). FIG. 12 shows an embodiment thereof, and the clamping mechanism is clamp plates (71), (71) extending in the moving direction of the roller chain (9) so as to face the upper side thereof across the side edges of the plurality of mandrel plates (22). And a cylinder (73) connected to the support rods (72), (72) of the clamp plates (71), (71). Then, when the stop of the roller chain is confirmed by the stop detection signal, the cylinder (73) operates based on the signal, the support rods (72), (72) are lowered, and the clamp plate (71) , (71) are pressed against both sides of the mandrel plate (22) to clamp the mandrel. Thus, by firmly clamping the mandrel plate (22) from both sides, the rubber hose is held so as not to wobble, and during this time, marking is performed by the marking device, so that no marking failure or the like can occur. This clamp is held for a time when the roller chain is stopped, that is, for a time when the marking device is operated, and when the roller chain moves, the holding of the mandrel plate by the clamp is released.
[0030]
Next to the marking zone (7), a desorption zone (8) is provided. In the desorption zone (8), the vulcanized rubber hose (37) is pulled out from the mandrel (11), and the unvulcanized rubber hose (30) is inserted into the mandrel (11). This operation may be performed manually or by a robot. In addition, when a release agent is used when inserting the unvulcanized rubber hose, an appropriate tray may be provided in the desorption zone to prevent scattering to the floor. In the zone where the rubber hose is pulled out, clamping means for holding the mandrel as described above is provided so that the mandrel does not come off the mandrel mounting base. In order to replace the mandrel, the mandrel may be attached to and detached from the mandrel mounting base in a zone removed from the clamping means.
[0031]
With the above configuration, when an unvulcanized rubber hose is inserted into a predetermined mandrel in the desorption zone (8), the mandrel is passed through the inside of the vulcanizing furnace (2) by conveying means that is intermittently driven. And the rubber hose is vulcanized. Then, after leaving the inner conveyance path (3) and proceeding to the outer conveyance path (4), the vulcanized rubber hose is washed and dried in the washing and drying zone, and a predetermined marking is applied in the marking zone. It is withdrawn from the mandrel in the desorption zone. In this way, continuous integrated production directly connected from insertion of the unvulcanized rubber hose, vulcanization, washing and drying, marking to extraction of the vulcanized hose can be performed.
[0032]
As described above, in the desorption zone, the rubber hoses molded one after another are pulled out from the mandrel, and therefore it is preferable that the isomorphous and irregular rubber hoses collected in the desorption zone are sorted and conveyed without staying in the process. For such a purpose, a sorting and conveying device is provided in the vicinity of the desorption zone, and FIG. 13 shows an embodiment thereof. In the figure, the apparatus main body (74) is divided into an upper stage and a lower stage, and a first driving roller conveyor (76) and a second driving roller conveyor (77) for conveying a product container (75) are provided in parallel on the upper stage. Yes, these roller conveyors (76), (77) are driven by the drive mechanism (78) so that the rollers rotate in the opposite direction, and the first drive roller conveyor (76) moves the product container (75) to the position shown in FIG. In A), the second drive roller conveyor (77) is moved leftward.
[0033]
Free conveyors (79), (80) are provided at both ends of the first drive roller conveyor (76) and the second drive roller conveyor (77), and sensors (81), (82), ( 83) and (84) are in place. One of the free conveyors (80) is provided with a slide mechanism (85), and the sensor (83) detects the product container (75a) being sorted that has been transported on the second drive roller conveyor (77). At this time, the slide mechanism (85) is activated to deliver the product container (75a) to the first drive roller conveyor (76).
[0034]
In the lower part of the apparatus body (74), an empty container conveyor (86) for conveying an empty product container (75b) and a filled container conveyor (75c) for conveying a filled product container (75c) filled with a predetermined amount of product ( 87) are provided so as to be inclined in an opposing state. When the empty product container (75b) is supplied to the empty container conveyor (86) from the left side of FIG. 13 (B), it is transported to the right end located near the desorption zone (8), and the filled product container (75c) is removed. When supplied to the filled container conveyor (87) from the right side of FIG. 13 (B), it is conveyed to the other end on the product dispensing side.
[0035]
A product instruction sheet and a counter (not shown) are attached to the product container (75), and a part number, a container size, a capacity, and the like are clearly shown and can be counted by the counter.
[0036]
Since the mandrel mounting base (12) transported by the transport means as described above is mounted in a mixed flow state with the same shape mandrel and the deformed mandrel arranged in series in the traveling direction, the first drive roller conveyor ( 76) and the order of the product containers (75) arranged on the second drive roller conveyor (77) are arranged side by side so that the order matches the type of mandrels set on the mandrel mount.
[0037]
Thus, the molded hose drawn from the mandrel in the desorption zone is put into the corresponding product container (75) arranged on the first drive roller conveyor (76). At this time, the product container (75) into which the molded hose is to be first introduced is positioned at the right end of FIG. 13 (A). When the first product type is drawn and the product container (75a) being sorted is not filled with a predetermined number of molded hoses, the universal conveyor (79) to the second drive roller conveyor (77) Slide the product container (75a) being sorted into the above.
[0038]
When the sensor (81) detects the product container (75a) being sorted, the drive mechanism (78) is driven, so that the product container (75a) on the first drive roller conveyor (76) is shown in FIG. To the right side of (A), the product container (75a) on the second drive roller conveyor (77) is conveyed to the left side. When the product container (75a) being sorted in this way is conveyed to the left end of the second drive roller conveyor (77), the sensor (83) detects and the product container (75a) is detected by the slide mechanism (85). ) Is transferred to the first drive roller conveyor (76). On the other hand, when the product container (75a) reaches the right end of the first drive roller conveyor (76), the sensor (82) detects the product container (75a) and stops the drive mechanism (78).
[0039]
In the right end of the first drive roller conveyor (76), if it is confirmed that the number of molded hoses charged into the product container (75) is filled with a specified amount based on the instruction sheet and counter, The product container (75c) is taken out from the first drive roller conveyor (76), put into the filled container conveyor (87), and unloaded to the left side as shown in FIG. For varieties to be added in production, a predetermined mandrel is set on the mandrel mounting base and the corresponding empty product container is put into the empty container conveyor (86), and is sent to the right side in FIG. What is necessary is just to arrange in the predetermined position of a conveyor. By using the manufacturing apparatus (1) and the sorting and conveying apparatus (74) in conjunction with each other as described above, the same or different shaped hose continuously produced in the manufacturing apparatus is retained in the process. And can be sorted and transported.
[0040]
【The invention's effect】
A vulcanizing furnace configured as described above according to the present invention to vulcanize a rubber hose with hot air at normal pressure, an inner conveyance path passing through the inside of the vulcanizing furnace, and a cleaning / drying zone provided outside the vulcanizing furnace , A conveying means for circulating the outer conveying path passing through the marking zone and the desorption zone, and a plurality of mandrels arranged in series in the traveling direction by the conveying means and intermittently transferred, The vulcanized rubber hose is vulcanized in the inner conveyance path, and the vulcanized rubber hose is washed and dried in the state where it is attached to the mandrel in the cleaning and drying zone and marking zone of the outer conveyance path, and then the marking is performed, and then the desorption zone The vulcanized rubber hose was pulled out from the mandrel and the unvulcanized rubber hose was inserted into the mandrel, and then the mandrel was transferred to the inner conveyance path. After vulcanizing the hose, washing and drying, it can continuously process after the marking, etc., enables integrated production, it is possible to shorten the process lead time, the synchronization of production.
[0041]
In addition, since the mandrel is attached to the conveying means in units of one unit, the attaching means is simplified, the conveying means itself can be easily and miniaturized, and mixed flow production of the same shape product and the deformed product is possible. The degree of freedom of production can be increased. In addition, a mandrel mounting base is provided on the transport means, and the mandrel can be attached to the mounting base in a detachable manner, making it easy to replace the mandrel, shortening the setup time for product replacement, and simplifying the transport means. can do.
[0042]
In addition, since the vulcanized rubber hose is marked while passing through the marking zone, marking can be performed reliably without forgetting marking, eliminating the need for a dedicated marking jig, By providing the sorting and transporting device in the vicinity, it is possible to sort and transport without forming hoses staying in the process, so that it can be an integrated flow production line. Since the dispensing is performed, the flow of the container can be made smooth.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is a side view.
FIG. 3 is a perspective view showing a mandrel and a mandrel mounting base.
4A and 4B show a cleaning / drying apparatus, in which FIG. 4A is a plan view and FIG. 4B is a side view.
5A and 5B show a presser device, in which FIG. 5A is a side view and FIG. 5B is a plan view.
6A and 6B show a product identification detection mechanism, in which FIG. 6A is a front view of a mandrel, and FIG.
7A is a perspective view showing a marking mode, FIG. 7B is a plan view of a marking device, and FIG. 7C is a side view;
8A is a side view showing a marking mode, and FIG. 8B is a plan view of a marking device.
FIGS. 9A and 9B show other marking portions, FIG. 9A is a side view showing a marking mode, and FIG. 9B is a plan view of a marking device;
FIG. 10 is a perspective view showing a retaining device.
11A and 11B show a misalignment prevention mechanism, in which FIG. 11A is a plan view and FIG. 11B is a side view.
FIG. 12 is a side view showing a clamp mechanism.
13A and 13B show a sorting and conveying apparatus, where FIG. 13A is a plan view and FIG. 13B is a side view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Manufacturing apparatus 2 ... Vulcanization furnace 3 ... Inner conveyance path 4 ... Outer conveyance path
5 ... Conveying means 6 ... Cleaning and drying zone 7 ... Marking zone
8 ... Desorption zone 9 ... Roller chain 11 ... Mandrel
12 ... Mandrel mount 31 ... Cleaning and drying device 38 ... Presser device
48 ... Marking device 62 ... Retaining device 68 ... Fitting jig
71 ... Clamp plate 74 ... Sorting and conveying device

Claims (10)

A vulcanizing furnace for vulcanizing the rubber hose with hot air at normal pressure, an inner conveyance path passing through the inside of the vulcanizing furnace, and an outside passing through the cleaning and drying zone, the marking zone and the desorption zone provided outside the vulcanizing furnace. A conveying means that circulates in the conveying path; and a plurality of mandrels are arranged in series in the traveling direction intermittently by the conveying means, and an unvulcanized rubber hose attached to the mandrel is added to the inner conveying path. Sulfur, wash and dry the vulcanized rubber hose while attached to the mandrel in the washing and drying zone and marking zone of the outer conveyance path, apply the marking, and then pull out the vulcanized rubber hose from the mandrel in the desorption zone, A method for manufacturing a rubber hose, comprising: inserting an unvulcanized rubber hose into the mandrel; and then transferring the mandrel to the inward conveyance path. The marking device for performing the marking is provided corresponding to a plurality of types of rubber hoses, detects the type information of the rubber hose passing through the outer conveyance path, and selects the marking device corresponding to the rubber hose based on the detection signal. The method for manufacturing a rubber hose according to claim 1, wherein marking is performed. The transport means mixes and transports mandrels corresponding to a plurality of types of rubber hoses, and the desorption zone has a plurality of containers for collecting the rubber hoses for each type, and the containers correspond to the order of mandrel alignment for each type. The method for producing a rubber hose according to claim 1, wherein the rubber hose is conveyed to the desorption zone. 4. The rubber hose according to claim 3, wherein the container is conveyed separately in an upper stage and a lower stage, the vulcanized rubber hose is sorted and filled in the upper stage, and empty containers and filled containers are supplied and discharged in the lower stage. Manufacturing method. A vulcanizing furnace for vulcanizing the rubber hose with hot air at normal pressure, an inner conveyance path passing through the inside of the vulcanizing furnace, and an outside passing through the cleaning and drying zone, the marking zone and the desorption zone provided outside the vulcanizing furnace. A cleaning liquid is provided in a transporting means circulating in the transporting path, a mandrel mounting base provided in the transporting means so as to hold and transfer the mandrel in series in the traveling direction, and a rubber hose provided in the cleaning drying zone and mounted on the mandrel. Cleaning means for spraying and drying, and marking means for marking the rubber hose provided in the marking zone and attached to the mandrel, and the vulcanized rubber hose from the mandrel passing through the marking zone in the desorption zone. An apparatus for producing a rubber hose, which is drawn out and an unvulcanized rubber hose is inserted into the mandrel. Said mandrel is fitted detachably on said mandrel mount, the said conveying means comprises a roller chain, said mandrel mount the manufacture of rubber hose according to claim 5 which is connected to the pin portion of the roller chain apparatus. The marking means includes a plurality of marking devices corresponding to a plurality of types of rubber hoses, and the mandrel is provided with an identification portion corresponding to the plurality of types of rubber hoses, and an identification detection means for detecting the identification portion in the marking zone. 6. The rubber hose manufacturing apparatus according to claim 5, wherein the identification detecting means detects the identification portion of the mandrel and drives a corresponding marking device based on the detection signal. The rubber hose manufacturing apparatus according to claim 5 or 7, wherein the marking zone is provided with a misalignment prevention means for stopping the conveying means at a fixed position when marking. The rubber hose manufacturing apparatus according to claim 5, wherein the marking zone is provided with retaining means for holding the mandrel mounting base from a side facing the marking apparatus. 6. The rubber hose manufacturing apparatus according to claim 5, wherein the outer conveyance path is provided with clamping means for holding the mandrel when the conveyance means is stopped.

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