JP4579203B2 - Cloth folding device that can fold multiple types - Google Patents

Description

  The present invention comprises a conveyor composed of a plurality of right and left belts for feeding fabrics in the front-rear direction, and includes a plurality of types including folding that performs French folding on the fed fabrics and folding that does not perform French folding. The present invention relates to a cloth folding apparatus capable of selecting and executing folding.

  For example, there are various ways to fold a cloth such as a sheet, a wrapping cloth, or a blanket, etc., and it has been conventionally manufactured to perform a desired folding. It has been folded using almost a dedicated folding device. For example, in the process of transporting cloth, in the process of transporting the cloth, the cloth is moved between transport conveyors arranged in front and back or up and down, and the cloth is folded using a folding knife in the gap between adjacent conveyors. Such a method is taken. On the other hand, French folds and pantry folds are, for example, a method in which a step is provided on the conveyor to create a vertical gap, and cloth is folded from the gap using a fold gauge along the conveyance direction. It has been.

  In the above example, there is a fundamental difference in the structure of the transport conveyor, especially between the French fold that requires a step on the transport conveyor and the four fold that does not require a step, and each device is completely different. It is likely to be considered as another kind of device that performs work. For this reason, there is little room for the idea of performing these operations with a single model. There is also a method in which French folding is carried out between the front and rear or the conveyors arranged vertically.

  For example, the device disclosed in Japanese Patent Application Laid-Open No. 2003-220300 determines the position of one third of the width of the cloth from the detection result of the sensor, and reverses one of the conveyors when the position moves between adjacent conveyors. In addition, a folding knife is woven and the first folding is performed. Similarly, the position of two-thirds of the width of the cloth is determined from the detection result of the sensor, and when the position moves between adjacent conveyors, And the second folding is performed by weaving a folding knife. This method does not require a step on the conveyor, so it can also be folded in four, etc., but the operation of the conveyor frequently repeats forward, stop, reverse rotation, and the work is not smooth and control The device plays an important role and must be complicated as a device.

JP 2003-220300 A

  The present invention has been made paying attention to the above points, and the problem is that a single device selects and executes a plurality of types of folding including folding with French folding and folding without French folding. Is to make it possible. Another object of the present invention is to provide a cloth folding device capable of smoothly folding a cloth and capable of folding in a plurality of types and capable of being folded with high quality.

  In order to solve the above-mentioned problems, the present invention comprises a conveyor composed of a plurality of right and left belts for feeding cloths in the front-rear direction, folding the cloths to be fed, As a folding device that selects and executes a plurality of types of folding including folding that is not performed, the folding device is located at the upper part of the inner belt of the left and right multiple belts of the conveyor, has an elongated shape extending in the front-rear direction, and is a French folding A French fold gauge, sometimes serving to define the fold position, is arranged, the French fold gauge being in contact with the fabric to act to push it onto the inner belt, Installed in the machine so that it can move up and down without touching the fabric, and the outer belts of the left and right multiple belts on the conveyor are attached to the machine. The upper and lower positions can be selected by the movable guide plate, and the lower position is arranged in the same plane as the inner belt, and the upper position allows a vertical fold between the inner belt and the outer belt to enable French folding. In order to perform French folding, a French folding knife having an elongated shape extending in the front-rear direction is arranged at the lower part of the left and right outer belts, and a vertical gap is formed between the inner belt and the outer belt. A reciprocating mechanism is provided for moving the French folding knife from the lower part of the outer belt to the upper part of the inner belt, and the cloth is folded on a folding gauge that is in contact with the inner belt. Is installed on the base plate so that the base plate can be moved up and down by the lifting mechanism with respect to the machine body, and the outer belt is attached when performing French folding. The base plate is raised before and after the raising, and the French folding knife is configured to be arranged at the position of the vertical gap between the inner belt and the outer belt. .

  In the present invention, the French folding is a method of making a three-layer product by folding the left and right parts in the center along the folding line in the front-rear direction at a position one third and two thirds of the width of the cloth. (FIG. 22A) Pantry folding refers to a method of making a two-layer product by folding the left or right part along the fold line in the front-rear direction at a position half the width of the cloth. (FIG. 22B). Therefore, French folding can be performed by performing pantry folding on the left and right. On the other hand, folding cloths in half of the conveying direction is referred to as two-folding in the present invention, and folding the cloths further in the same direction is referred to as four-folding (FIG. 22C).

  As is clear from the matters described above, the folding device of the present invention includes a conveyor composed of a plurality of right and left belts for feeding cloths in the front-rear direction, and performs French folding thereon. Of the plurality of right and left belts constituting the conveyor, the belt positioned relatively inside is called an inner belt, and the belt positioned outside is called an outer belt. Therefore, this conveyor requires a total of three parts, the inner side and the outer left and right sides. The folding device of the present invention uses such a conveyor to select and execute a plurality of types of folding including folding that performs French folding on cloth to be fed and folding that does not perform French folding. Therefore, it has the following configuration.

  First, a French fold gauge is placed at the top of the inner belt of the conveyor belt. The French fold gauge has an elongated shape extending in the front-rear direction, and plays a role of defining a fold position at the time of French folding. The plurality of belts on the left and right sides of the conveyor are parallel to each other, and the French folding gauge disposed on the upper part of the inner belt is substantially parallel to them. That is, the French fold gauge extending in the front-rear direction of the conveyor is arranged substantially along the conveying direction of the conveyor. When the cloth is French-folded or pantry-folded, the lower layer portion comes into contact with the upper surface of the inner belt.

  The French fold gauge described above has a working posture to contact the fabric and a retracting posture to pass without contacting the fabric so as to act on the fed fabric on the inner belt. It is provided on the aircraft so that it can move up and down. By contacting the cloth, the cloth is pushed onto the upper surface of the inner belt so that the French folding operation can be performed, and friction is appropriately increased, and the conveyance performance in the French folded state is improved. At the time of French folding, the cloth wraps around the French fold gauge and resistance increases, and this is a measure against the tendency that the conveying force tends to be insufficient only by contact with the upper surface of the conveyor.

  The French fold gauge is rotatably attached to the machine body at the front part of the conveyor by a gauge attaching member that fixes the front part of the gauge, and when the gauge attaching member rotates in one direction, the French fold gauge is pushed onto the inner belt to contact the cloth. It can be configured such that the French folding gauge is in a retracted state that allows the cloth to pass through when the gauge mounting member rotates in the reverse direction. By fixing the front and rear French fold gauges to the gauge mounting member at the front part, when the front part is rotated in one direction, the entire rear part rises from the center of rotation and lowers by reverse rotation. The vertical movement by the mechanism is realized.

  In the present invention, the outer belt of the conveyor belt is provided so that the vertical position can be selected by a movable guide plate attached to the fuselage, arranged in the same plane as the inner belt at the lower position, and between the inner belt and the outer belt at the upper position. A vertical gap is created between them to enable French folding. A step is provided on the conveyor to create a vertical gap, and a French folding knife can be taken in and out of the gap. Therefore, the upper and lower positions of the outer belt need only be selectable so as to obtain a gap having a dimension that allows the French folding knife to be taken in and out. Only the front part of the movable guide plate may be moved up and down, and may be inclined downward from the front part toward the rear part at the upper position.

  In order to perform French folding, a French folding knife having an elongated shape extending in the front-rear direction is arranged at the lower part of the left and right outer belts, and when a vertical gap is formed between the inner belt and the outer belt, the outer side A reciprocating mechanism for moving the French folding knife from the lower part of the belt to the upper part of the inner belt is provided, and the cloths are folded on the folding gauge in contact with the inner belt. It is desirable that the French folding knife has a dimension equal to or longer than the length of the cloth in the front-rear direction. The reciprocating mechanism folds the outer part of the cloth placed on the outer belt inward in French folding or pantry folding, and the outer part to be folded here is a lower layer part of the cloth folded first. Overlapping as an upper layer.

  The French folding knife and its reciprocating mechanism are installed on a base plate and installed so that the base plate can be moved up and down by an elevating mechanism with respect to the airframe. The base plate is raised, and the French folding knife is arranged at the position of the vertical gap between the inner belt and the outer belt. As described above, the selection of the vertical position of the movable guide plate is a change in the position with respect to the machine body, and the French folding knife is moved up and down in accordance with the change in the position. A pair of left and right French folding knives are provided, and are installed on a base plate to move them up and down at the same time, and the base plate is moved up and down.

  The reciprocating mechanism for moving the French folding knife from the lower part of the left and right outer belts to the upper part of the inner belt is attached to a movable body provided to be movable in the left and right direction of the base plate. On the other hand, the French fold gauge can be provided so that its interval can be adjusted in order to match the fold width of the cloth. In this way, the optimum folding width can be applied to the fabric according to the size of the fabric and other needs.

  Thus, according to the present invention, a plurality of types of folding including French folding can be selected and executed, and among them, cross folding such as bi-folding and quadruple folding is also included. The four folds in the present invention do not require the use of any French folding knife, and the conveyor in which the outer belt is arranged on the same plane as the inner belt merely conveys the cloth. Four-folding or the like is performed between the front and rear conveyors.

  Since the present invention is configured and operates as described above, folding to perform French folding and French folding are performed by selecting the vertical position of the outer belt and raising and lowering the French folding gauge and the French folding knife provided on the base plate. There is an effect that a plurality of types of folding including folding that is not performed can be selected and executed by a single device. Further, according to the present invention, since the complicated operation of the conveyor is unnecessary, the cloth folding operation can be smoothly performed, and the work on the cloth can only be folded. There are few, and it can obtain a folding product with good quality. In addition, in the conventional model having a step between the inner belt and the outer belt for French folding, there is a restriction that it can be folded only with cloths that are narrower than the width of the step. Such restrictions are eliminated.

  Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. FIG. 1 shows an example of a cloth folding apparatus 10 capable of folding a plurality of types according to the present invention, wherein 11 is a machine body, 12 is a loading conveyor installed at the front thereof, and 13 is a loading confirmation sensor. , 14 is a pressing roller, 15 is a conveyor for feeding cloths in the front-rear direction composed of a plurality of right and left belts, and the illustrated one is an inner belt 16 composed of two strips and an outer belt composed of left and right strips. 17l and 17r. See FIG.

  The belt is wound around the inner belt 16 and the front and rear rollers 18 and 19, and the upper side thereof forms a substantially linear (planar) conveying surface. The outer belts 17l and 17r are wound around the rollers 18 and 19 together with the inner belt 16, but the upper side forming the conveying surface is moved up and down by passing over the movable guide plate 20 attached to the machine body 11. The lower side which is provided so as to be selectable and which is not related to the conveyance is passed under a base plate which will be described later. The outer belts 17l and 17r are arranged in substantially the same plane as the inner belt 16 at the lower position, and a vertical gap S is formed between the inner belt 16 and the outer belts 17l and 17r at the upper position to enable French folding. It is provided as follows. See FIG.

  The movable guide plate 20 is rotatably provided on the machine body 11 by a support shaft 21, and the other end portion of the telescopic actuator 22 utilizing fluid pressure, which is rotatably supported on the machine body 11 at one end portion, is movable. The guide plate 20 is connected at a position behind the shaft fulcrum. See FIG. The movable guide plate 20 is rotated about the support shaft 21 of the shaft fulcrum by the expansion and contraction of the telescopic actuator 21 and is lifted and pushed up while the push-up portion 23 is in sliding contact with the outer belts 17l and 17r. Or descend to make the inner belt 16 and the outer belt 17 (171, 17r) flush with each other.

  A pair of left and right French folding gauges 25 (25l, 25r), which play a role of defining the folding position during French folding, are arranged so as to be positioned above the inner belt 16 of the conveyor 15. The illustrated French folding gauges 25l and 25r have an elongated shape extending in the front-rear direction, and act to push the cloth W to be fed onto the inner belt. Therefore, the French folding gauges 25l and 25r are fixed to the pair of left and right gauge mounting members 26 (26l and 26r) at the front ends of the gauges and are rotatably mounted on the machine body 11 at the front portion of the conveyor 15, and the gauge mounting members 26l. , 26r are rotatably provided on the body 11 by the main shaft 27. In other words, the French folding gauges 25l and 25r are pushed onto the inner belt by rotating the gauge mounting member 26 in one direction to contact the cloth W, and the French folding gauge 25 is rotated by rotating the gauge mounting member 26 in the reverse direction. It is set as the retreating state which passes W.

  Further, the gauge attaching members 26l and 26r are provided on the main shaft 27 provided on the machine body 11 so that the distance between the gauge attaching members 26l and 26r can be adjusted, so that the gauge width of the French fold gauges 25l and 25r can be changed to the folding width with respect to the cloth W. It can be matched. See FIG. That is, the gauge mounting members 26l and 26r are screwed into the right and left screw portions of the main shaft 27 so that the distance between the gauge mounting members 26l and 26r increases or decreases depending on the rotation direction of the main shaft. It has become. Reference numeral 28 denotes a gauge width adjusting motor which drives the main shaft 27. Reference numeral 29 denotes a retractable transfer plate that can be retracted to the rear of the conveyor 15.

  In order to perform French folding, a French folding knife 30 (30l, 30r) having an elongated shape extending in the front-rear direction for sending the fabric W is disposed below the left and right outer belts 17l, 17r, and the inner belt 16 and the outer belt 17l, When the vertical gap S is formed between the inner belt 16 and the inner belt 16, the French folding knives 30 l and 30 r are moved in the left-right direction from the lower part of the outer belts 17 l and 17 r toward the upper part of the inner belt 16. The cloth W is folded on the folding gauge in contact with the cloth. The illustrated French folding knives 30l and 30r have dimensions longer than the assumed length of the cloth W in the front-rear direction. The French folding knives 30l and 30r fold the outer portion of the cloth W placed on the outer belts 17l and 17r inward by a reciprocating mechanism 31 (31l and 31r) that operates in French folding or pantry folding.

  The illustrated French folding knives 30 l and 30 r and the reciprocating mechanisms 31 l and 31 r are installed on a base plate 32, and the base plate 32 is installed on the machine body 11 by an elevating mechanism 33 so that it can be folded. The base plate 32 is raised before and after the outer belt 17 (17l, 17r) is raised, so that the French folding knives 30l, 30r have a vertical gap S between the inner belt 16 and the outer belt 17. It arrange | positions so that it may be arrange | positioned in position. The illustrated French folding knife 30 (30l, 30r) is attached to a moving body 34 (34l, 34r), and the moving bodies 34l, 34r are rollers along a rail 35 provided in the left-right direction on the base plate 32. The movable body 34 is driven by reciprocating mechanisms 31l and 31r.

  Reference numeral 37 denotes a French fold stop sensor, 38 denotes a first fold sensor that folds cloth in half of the conveying direction, and 39 denotes a second fold sensor. The French folding stop sensor 37 is provided to determine the position by detection, counting and calculation for the purpose of stopping the fixed position at the time of French folding, and the first folding sensor 38 is the length of the cloth W during the first folding. Is provided to determine the timing of air jet injection, etc., and the second folding sensor 39 is provided to measure the length of the fabric W during the second folding and to determine the timing of air jet injection, etc. It has been.

  On the discharge end side of the conveyor 15, a cross fold 40 for the fabric W is provided. The cross folding section 40 includes a front conveyor 41 that is inclined downward after receiving the cloth W discharged from the discharge end of the conveyor 15, and a first folding conveyor 42 and a first folding means 43 that are in contact with the upper portion of the front conveyor 41. The first-stage folding portion is formed of a jet ejection hole. Further, the cross folding means folds the cloth W toward the joining portion of the rear conveyor 44, which is disposed substantially horizontally on the discharge end side of the front conveyor 41, and the discharge end of the front conveyor 41 and the rear conveyor 44. And a second-stage folding portion having a second folding means 45 comprising an air nozzle and a knife. Reference numeral 46 denotes a second folding means driving unit that rotates the arm 47 by expansion and contraction thereof.

  Further, a dropping plate transporting conveyor 49 is installed on the downstream side of the cross folding unit 40 via a feed conveyor 48, and the folded cloth W is transported onto the dropping plate 50. The dropping plate 50 is configured to open downward in a double-opening manner by a driving unit 51 formed of a cylinder, and to drop the cloth W onto the discharge conveyor 52. A considerable space is provided between the drop plate 50 and the discharge conveyor 52 for opening and closing the drop plate, and folding products can be stacked if necessary. Reference numeral 53 denotes a drop sensor for detecting folded cloths, determining the timing and opening the drop plate 50.

  Folding by the fabric folding device 10 configured as described above according to the present invention and capable of folding multiple types will be described. FIG. 9 to FIG. 15 show a French folding process, in which, for example, a towel is put into the loading conveyor 12 as the cloth W to be processed (FIG. 9A). At this time, the confirmation sensor 13 is turned on, whereby the movable guide plate 20 rotates counterclockwise in FIG. 9A, and the push-up unit 23 pushes up the outer conveyor 17 (17 l, 17 r), and between the inner conveyor 16. The base plate 32 is moved up and down by the elevating mechanism 33 at the same time, and the vertical folding gap 30 (30l, 30r) is positioned in the gap S, and the French folding gauge 25 ( 25l, 25r) pushes the cloth W onto the inner belt to make contact (FIGS. 9 and 10A).

  The cloth W to be conveyed is detected by the French folding sensor 37 and temporarily stops on the conveyor 15 (FIG. 9B). Then, for example, the left French folding knife 30l moves to the upper side of the inner conveyor 16, and at the position of one third of the width of the cloth W, the French folding gauge 25l is used as a ruler in the front-rear direction. Is folded in the center (FIG. 10B). Subsequently, the right French folding knife 30r moves above the inner conveyor 16, and at the position of two-thirds of the width of the cloth W, the French folding gauge 25r is similarly used as a ruler, and The part is folded in the center (FIG. 10C). In this manner, the cloth W according to the present invention is French-folded, and the cloth W is transported to the next process by resuming the movement of the transport conveyor 15.

  11 and 12 show a process of folding the cloth W folded in French. An air jet is jetted from the first folding means 43 to the cloth W discharged from the conveyor 15 to guide the cloth W folded in the front conveyor 41 of the cross fold 40 (FIG. 11A), Guide to the rear conveyor 44. When the cloth W is detected by the second folding sensor 39, the folding position of the cloth W is calculated by the pulse count in the control unit (not shown), and the folding position of the cloth W reaches the junction of the front conveyor 41 and the rear conveyor 44. When the conveyor 41, 44 stops instantaneously, the knife of the second folding means 45 creases the cloth W (FIG. 11B), and at the same time the knife begins to return, the nozzle of the second folding means 45 The air jets are ejected from the conveyors, the conveyors 41 and 44 are restarted (FIG. 12A), and folding in half is performed. The cloth W folded in half and folded in half is conveyed onto the drop plate 50 by the conveyors 48 and 49, and the drop plate 50 is opened and falls onto the discharge conveyor 52 (FIG. 12B). See FIG. 22A.

  13 and 14 show a process of folding the French-folded fabric W in three. With respect to the cloth W discharged from the conveyor 15 and transferred to the first folding conveyor 42, the position of the trifold is calculated by the position detection by the sensor 38 and the control unit (not shown), and an air jet is ejected from the first folding means 43. Then, the first folding is performed (FIG. 13A). When the cloth W is detected by the first folding sensor 39 on the front conveyor 41, the tri-fold position is calculated by the pulse count in the control unit (not shown), and the position of the cloth W is the junction point of the front conveyor 41. When the conveyors 41 and 44 are instantaneously stopped, the knife of the second folding means 45 creases the cloth W (FIG. 13B), and at the same time the knife begins to return, the second folding means 45 The air jets are ejected from the nozzles and the conveyors 41 and 44 are restarted (FIG. 14A), and the second trifold is performed. After that, it is transported to the drop plate 50 and discharged from the discharge conveyor 52 (FIG. 14B).

  FIGS. 15 to 17 show the pantry folding process. When the fabric W to be processed is loaded into the loading conveyor 12, the point P of the French folding gauge 25r shown in FIG. It is inserted so as to coincide with the line to be folded at the center (FIG. 15). At this time, the confirmation sensor 13 is on, whereby the movable guide push-up portion 23 is rotated counterclockwise in FIG. 15, pushes up the outer conveyor 17 (17 l, 17 r), and moves up and down between the inner conveyor 16. At the same time, the base plate 32 is raised by the elevating mechanism 30, the French folding knife 30 (30l, 30r) is positioned in the clearance S, and the French folding gauge 25 (25l). 25r) presses the fabric W onto the inner belt.

  The cloth W to be conveyed is detected by the French folding sensor 37 and temporarily stops on the conveyor 15 (FIG. 17A). In the case of the example, the French folding knife 30r moves above the inner conveyor 16, and at the position half the width of the cloth W, the French folding gauge 25r is used as a ruler in the front-rear direction. The right part is folded in the center (FIG. 17B). See FIG. 22B. In this way, pantry folding of the fabric W according to the present invention is performed, and the fabric W is transported to the next process by the resumption of the movement of the transport conveyor 15. Since the cloth W that has been pantry-folded can be folded in two, three, or four, as in the case of the cloth W folded in French, detailed description is omitted.

  FIGS. 18 to 21 illustrate a folding method that does not perform French folding in the folding by the folding device 10 for a plurality of types of folding according to the present invention. When the cloth W to be processed is input to the input conveyor 12 (FIG. 18A), the confirmation sensor 13 is ON, and the movable guide plate 20 rotates in the clockwise direction in FIG. 1 as opposed to French folding. Without pushing up the outer conveyor 17 (171, 17r) by the push-up unit 23, the conveyors 15 are arranged in substantially the same plane as the inner conveyor 16, and the transfer conveyor 15 forms a substantially plane as a whole (FIG. 18B). The French fold gauge 25 (25l, 25r) is configured so that the main shaft 28 rotates and the rear side of the French fold gauge 25 jumps up, so that the French fold gauge 25 (25l, 25r) is allowed to pass through without contacting the cloth W (see FIG. 7, FIG. 18A).

  For this reason, the cloth W is conveyed by the substantially flat conveyance conveyor 15 as a whole, passes through a French folding part without resistance (FIG. 19), and is sent to a cross folding process. As a result of the pulse count in the control unit accompanying the cloth detection of the first fold sensor 38, the half point of the feed direction length of the cloth W has reached the junction of the front conveyor 41 and the first fold conveyor 42. In some cases, an air jet is ejected from the first folding means 43, and the first folding conveyor 42 that has been rotating forward is reversed (FIG. 20A), and is sent to the next step as a double fold. When the cloth folded in half is detected by the second folding sensor 39, the second folding position is calculated by the pulse count in the control unit (not shown), and the folding position of the cloth W is set to the front conveyor 41 and the rear conveyor. When the conveyor 44 reaches the confluence, the conveyors 41 and 44 stop instantaneously, and at the same time the knife of the second folding means 45 creases the fabric W (FIG. 20B), and the knife starts to return, Air jets are ejected from the nozzles of the second folding means 45, and the conveyors 41 and 44 are restarted (FIG. 21A), so that the second folding is performed, resulting in a four-fold product. The folded fabric W is conveyed onto the drop plate 50 by the conveyors 48 and 49, and the drop plate 50 is opened and dropped onto the discharge conveyor 52 and stacked (FIG. 21B). See Figure 22C.

  In the apparatus of the present invention constructed and operated in this manner, the folding operation that performs French folding and the folding operation that does not perform French folding position the outer belts 17 (171, 17r) of the left and right multiple belts of the conveyor 15. Since it is realized by a configuration in which the vertical position can be selected by the movable guide plate 20 attached to the machine body 11, it is mechanically reliable and stable operation can be expected without being complicated. On the contrary, it is possible to adopt a configuration in which the position of the inner belt 16 of the belts on the left and right sides of the conveyor 15 can be selected up and down, and it is considered that there is no relative difference. Since the relationship with the mechanism such as the gauge 25 is slightly complicated, it is judged that there are many advantages in the configuration described so far.

The right view which shows an example of the folding apparatus of the cloth which can be folded in multiple types based on this invention. The top view of the thing of FIG. The left view of the thing of FIG. The front view of the thing of FIG. 1 similarly. The right view which shows the state at the time of French folding by the apparatus of this invention. The state at the time of a French fold is shown, A is a cross-sectional view of the French fold part containing cloth, B is a rear view of a French fold part. The right view which shows the state which does not perform French folding by the apparatus of this invention. The state which does not perform French folding, A is a cross-sectional view of the French fold part containing cloth, B is a rear view of a French fold part. The French folding process is shown, A is an explanatory view showing the cloth feeding process, B is an explanatory view showing a state in which the cloth has moved to the French folding section. The French folding process is shown, A is explanatory drawing just before French folding, B is explanatory drawing of the first folding, C is explanatory drawing of the last folding. The next process with respect to French folded cloth is shown, A is explanatory drawing of the state which the cloth approached to the front | former stage conveyor, B is explanatory drawing of the state which cross-folds. Furthermore, it shows cross folding, A is explanatory drawing of the state by which cross folding was made on a back | latter stage conveyor, B is explanatory drawing of the state by which cloth was discharged | emitted after cross folding. 3 shows a trifold, A is an explanatory diagram of the first folding, and B is an explanatory diagram of the last folding. Further, three folds are shown, A is an explanatory diagram of a state of being conveyed after the final folding, and B is an explanatory diagram of a state in which cloths are discharged after the final folding. Explanatory drawing in a cloth injection | throwing-in process which shows pantry folding. Cross-sectional explanatory drawing which shows the relationship between the cloth in a French fold part, a conveyor, a French folding knife, etc. FIG. A pantry folding process is shown, A is explanatory drawing which shows the state which the cloth moved to the French fold part, B is a cross-sectional view in A. FIG. 4 relates to a folding method that does not perform French folding in the apparatus of the present invention, wherein A is an explanatory diagram of a cloth feeding process, and B is a cross-sectional view of a cloth conveying process. Explanatory drawing which similarly shows the state which the cloth has passed the French fold part. The cross fold process with respect to the cloth which passed the French fold part is shown, A is explanatory drawing which shows 1st folding, B is explanatory drawing at the time of approaching to 2nd folding. Similarly, it shows the process after cross folding, A is explanatory drawing which shows 2nd folding, B is explanatory drawing of the state by which cloth was discharged | emitted after 2nd folding. The folding by the apparatus of this invention is shown, A is a French fold, B is pantry fold, C is explanatory drawing which shows the outline of a four fold.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Folding device 11 Machine body 12 Input conveyor 13 Confirmation sensor 14 Holding roller 15 Conveyor 16 Inner belt 17 Outer belt 18 Front roller 19 Rear roller 20 Movable guide plate 21 Support shaft 22 Telescopic actuator 23 Push-up part 25 French folding gauge 26 Gauge attachment member 27 Main shaft 28 Gauge width adjusting motor 30 French folding knife 31 Reciprocating mechanism 32 Base plate 33 Lifting mechanism 34 Moving body 35 Rail 36 Roller 37 French folding stop sensor 38 First folding sensor 39 Second folding sensor 40 Cross folding section 41 Front conveyor 42 First Folding Conveyor 43 First Folding Means 44 Subsequent Conveyor 45 Second Folding Means 46 Second Folding Means Drive Unit 47 Arm 48 Feed Conveyor 49 Drop Plate Conveyor 50 Drop Plate 51 Drive Moving part 52 discharge conveyor

Claims (5)

Equipped with a conveyor consisting of multiple left and right belts for feeding fabrics in the front-rear direction, select multiple types of folds, including folds that fold French and folds that do not fold French A folding device that performs
Located at the upper part of the inner belt of the left and right multiple belts of the conveyor, has a long and narrow shape extending in the front-rear direction, and arranges a French fold gauge that plays a role of defining a fold position at the time of French folding,
The French fold gauge moves up and down so that it acts to push the cloth on the inner belt against the cloth being fed, and to retract to allow the cloth to pass through without contacting the cloth. It is installed in the aircraft to be movable,
The outer belts of the left and right multiple belts of the conveyor are provided so that the upper and lower positions can be selected by a movable guide plate attached to the machine body. Provide a vertical gap between them to allow French folding,
In order to perform French folding, a French folding knife having an elongated shape extending in the front-rear direction is arranged at the lower part of the left and right outer belts, and when a vertical gap is formed between the inner belt and the outer belt, the outer side A reciprocating mechanism for moving the French folding knife from the lower part of the belt to the upper part of the inner belt is provided, and cloths are folded on the folding gauge in contact with the inner belt,
The French folding knife and its reciprocating mechanism are installed on the base plate, and the base plate is installed so that it can be raised and lowered by the lifting mechanism with respect to the machine body. A fabric folding apparatus capable of folding a plurality of types, wherein the base plate is raised, and a French folding knife is arranged between the inner belt and the outer belt. The French fold gauge is rotatably attached to the machine body at the front part of the conveyor by a gauge attachment member with a fixed gauge tip, and the French fold gauge is pushed onto the inner belt by rotating the gauge attachment member in one direction. The cloth folding apparatus according to claim 1, wherein the cloth folding device is configured to be in a retracted state in which the cloth is allowed to pass through the French folding gauge by rotating the gauge mounting member in the reverse direction. . The cloth folding apparatus according to claim 1 or 2, wherein the French fold gauge is provided so that a distance between the French fold gauge and the cloth can be adjusted. The reciprocating mechanism for moving the French folding knife from the lower part of the left and right outer belts to the upper part of the inner belt is attached to a movable body provided so as to be movable in the left and right direction of the base plate. Possible cloth folding device. The outer belt of the conveyor belt is provided so that the upper and lower positions can be selected by attaching it to the machine so that only the front part moves up and down by the movable guide plate attached to the machine, and in the upper position it is inclined downward from the whole toward the rear. The cloth folding apparatus according to claim 1, wherein the cloth can be folded in plural kinds.

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