chute device

Abstract

The present invention relates to a chute device that avoids transporting a bobbin in a state where a yarn extends long from a bobbin provided to a tray by the chute device. The chute device (23) is provided with a plurality of passage members (35) and a cutter section (40). The plurality of passage members (35) guide a yarn bobbin (B) in a guide direction toward a tray (T) located at a prescribed setting position on a transport path (13) in a manner that the axial direction of the yarn bobbin (B) is along the prescribed guide direction. The cutter section (40) cuts a yarn (Y) that extends at least in the guide direction from the yarn bobbin (B) provided to the tray (T) to the opposite side from the setting position at a prescribed cutting position on the downstream side of the tray transport direction from the setting position.

Description

Technical Field

[0001] The present invention relates to a chute device for placing a bobbin with yarn wound on a tray. Background Technology

[0002] Patent Document 1 discloses a bobbin chute (hereinafter referred to as a chute device). The chute device places a yarn-wound bobbin (hereinafter referred to as a bobbin) on a conveyor tray (hereinafter referred to as a tray) on a tray conveying path. More specifically, the chute device guides the bobbin conveyed from above (more specifically, falling) in a vertical direction. Thus, the bobbin is placed on the tray.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2019-64797 For ease of explanation, the direction in which the bobbins are conveyed toward the pallet is referred to as the bobbin conveying direction. If the bobbins are placed on the pallet with the yarn wound around them hooked at some point upstream in the bobbin conveying direction of the chute device, the following problems may occur. Specifically, the yarn unwound from the bobbins on the pallet being conveyed along the transport path may extend quite far. Therefore, the possibility that the yarn will hook at some point during pallet transport, preventing the pallet from moving further, increases. Additionally, the problem of yarns extending from multiple bobbins becoming entangled and hindering the movement of those bobbins may also arise. Summary of the Invention

[0004] The purpose of this invention is to avoid conveying the bobbin while the yarn is being transported in a state where it is extended from the bobbin set on the tray via the chute device.

[0005] The first invention's chute device is a tray on a conveying path for placing a bobbin wound with yarn on it. It is characterized by comprising: a passage portion that guides the bobbin along a predetermined guide direction toward the tray located at a predetermined placement position on the conveying path; and a cutter portion that cuts the yarn extending from the bobbin on the tray at least in the guide direction toward the side opposite to the placement position at a predetermined cut position downstream of the placement position in the direction of conveying the tray, i.e., in the tray conveying direction.

[0006] According to the present invention, the yarn extending from the bobbin disposed on the tray is cut at the cutting position. Thus, a portion of the yarn on the opposite side of the bobbin in the guiding direction, separated from the bobbin at the cutting position, can be separated. Therefore, yarn that has loosened from the bobbin at a certain point on the upstream side in the bobbin conveying direction can be shortened. Therefore, it is possible to avoid conveying the bobbin while the yarn is extending excessively from the bobbin disposed on the tray via the chute device.

[0007] The second invention's chute device is characterized in that, in the first invention, the cutter part has an adjustment part capable of adjusting the cutting position in the guide direction.

[0008] The axial length of the bobbin can vary depending on its specifications. When a relatively short bobbin is placed on the tray, the distance between the end of the bobbin opposite to the tray (hereinafter referred to as the bobbin tip position) and the cutting position in the guiding direction may become longer. Therefore, even if the yarn is cut by the cutter, the yarn may extend a considerable distance from the bobbin. In this respect, the cutting position can be adjusted in the guiding direction. As a result, the cutting position can be made closer to the bobbin tip position in the guiding direction. Therefore, the length of the yarn extending from the bobbin can be minimized.

[0009] The third invention's chute device is characterized in that, in the second invention, the cutting position is located outside the passage when viewed from the guide direction, and the adjusting part is configured to adjust the cutting position at a position that at least overlaps with the passage in the guide direction.

[0010] In this invention, the adjusting part allows the cutting position to be as close as possible to the front end of the bobbin in the guiding direction. Therefore, the yarn extending from the bobbin can be shortened as much as possible.

[0011] The fourth invention is characterized in that, in any one of the first to third inventions, the cutter portion has a blade portion that contacts the yarn at the cut position, and the blade portion extends at least in the guiding direction toward the conveying path side.

[0012] When the cutting edge extends, for example, in a direction perpendicular to the guide direction, the distance between the front end of the bobbin and the cutting position in the guide direction may become longer. Therefore, even if the yarn is cut by the cutter, the yarn may extend a considerable distance from the bobbin. In this respect, in the present invention, compared to the case where the cutting edge extends, for example, in a direction perpendicular to the guide direction, the cutting position can be made closer to the front end of the bobbin. Therefore, the length of the yarn extending from the bobbin can be minimized.

[0013] The fifth invention is characterized in that, in any one of the first to fourth inventions, the cutting position converges to the inside of the conveying path in the width direction of the conveying path.

[0014] When the cutting position is located outside the conveying path in the width direction, the distance between the location where the bobbin is located and the cutting position may become longer. Therefore, even if the yarn is cut by the cutter, the yarn may extend a considerable distance from the bobbin. In this respect, in the present invention, compared to the case where the cutting position is located outside the conveying path in the width direction, the distance between the location where the bobbin is located and the cutting position in the width direction can be shortened. Therefore, the amount of yarn extending from the bobbin can be minimized.

[0015] The sixth invention's chute device is characterized in that, in any one of the first to fifth inventions, it includes a gate disposed on the opposite side of the setting position, across the passage portion in the guiding direction, capable of allowing or prohibiting the supply of the bobbin to the passage portion. The gate is configured to be movable in the width direction of the conveying path at the setting position, and by moving in the width direction with the first bobbin being disposed on the tray on the conveying path, thereby prohibiting the supply of a second bobbin, which is a bobbin supplied to the passage portion after the first bobbin, to the passage portion, and causing a portion of the yarn extending from the first bobbin to be closer to one side in the width direction than the center of the conveying path, the cutting position being a position closer to that side in the width direction than the center of the conveying path.

[0016] In the configuration of the present invention with a gate, as described above, a portion of the yarn extending from the bobbin is positioned to one side in the width direction relative to the bobbin. Consequently, the portion of the yarn located between the gate and the bobbin also moves to one side in the width direction. In this configuration, the cutting position in the present invention is located to one side in the width direction relative to the center of the conveying path. Therefore, the yarn can be smoothly guided towards the cutting position.

[0017] The seventh invention is characterized in that, in any one of the first to sixth inventions, it includes a control unit that, when it determines that the bobbin disposed on the tray is located at a predetermined position downstream of the tray in the conveying direction from the disposed position, causes the cutter unit to perform a yarn cutting operation.

[0018] In this invention, the lengths of multiple yarns extending from multiple bobbins along the conveying path can be made uniform.

[0019] The chute device of the eighth invention is characterized in that, in any one of the first to seventh inventions, the guiding direction is parallel to the vertical direction.

[0020] In this invention, by vertically lowering the tube in the passage section, the tube can be placed on the tray. Therefore, the installation area of ​​the passage section can be reduced. Consequently, the large size of the chute device in the horizontal direction can be prevented. Attached Figure Description

[0021] Figure 1 This is a schematic top view of a yarn winding device including the chute device of this embodiment.

[0022] Figure 2 It is a block diagram showing the electrical configuration of a yarn winding device.

[0023] Figure 3 It is a side view of the chute device and its surroundings.

[0024] Figure 4 This is a rear view of the chute assembly and its surroundings.

[0025] Figure 5 It is a top view of the chute device and its surroundings.

[0026] Figure 6 This is a rear view of the cutter section.

[0027] Figure 7 This is a flowchart regarding a method for cutting yarn extending from a yarn supply bobbin.

[0028] Figure 8 This is a diagram showing the adjustment of the cutting position.

[0029] Explanation of symbols 13 Conveyor path; 23 Slide device; 24 Control unit; 32a Gate; 35 Passage component (passage section); 40 Cutter unit; 42 Position adjustment frame (adjustment section); 43 Blade; B Yarn supply bobbin (bobbin); B1 First bobbin; B2 Second bobbin; T Tray; Y Yarn. Detailed Implementation

[0030] Embodiments of the present invention will be described. For ease of explanation, [the following will be used]. Figure 1 The left-right direction of the paper is defined as the left-right direction in this embodiment. Figure 1 The vertical direction on the paper is defined as the front-back direction in this embodiment. The horizontal direction is orthogonal to the vertical direction. The horizontal and vertical directions are parallel to the horizontal direction. Figure 1 The vertical direction of the paper is defined as the up-down direction in this embodiment. The up-down direction is orthogonal to the horizontal direction. That is, the up-down direction is parallel to the vertical direction under the influence of gravity. In addition, in this embodiment, the up-down direction (vertical direction) is parallel to the guiding direction of the present invention.

[0031] (Yarn winding equipment) Reference Figure 1 as well as Figure 2 The general configuration of the yarn winding device 1, including the chute device 23 (described later) of this embodiment, will be described. Figure 1This is a schematic top view of the yarn winding device 1, including the chute device 23. Figure 2 This is a block diagram showing the electrical configuration of the yarn winding device 1. The yarn winding device 1 performs the operation of winding yarns (in...) Figure 1 The process includes feeding multiple yarn feed bobbins B (not shown in the diagram), and the prescribed handling of the multiple yarn feed bobbins B. Furthermore, the yarn take-up device 1 unwinds and takes up yarn from each yarn feed bobbin B, forming multiple packages (not shown). Each yarn feed bobbin B extends axially. Each of the multiple yarn feed bobbins B has a generally cylindrical shape (more precisely, the outer diameter and inner diameter differ at one end and the other end along the axial direction of the yarn feed bobbin B). Yarn is wound around the outer circumferential surface of each yarn feed bobbin B.

[0032] like Figure 1 As shown, the yarn take-up device 1 includes, for example, an automatic winding machine 2, a bobbin supply device 3, a bobbin processing device 4, and a machine control device 5. The automatic winding machine 2 includes, for example, multiple yarn take-up units 11 and a conveying path 12. The multiple yarn take-up units 11 unwind yarn from a generally cylindrical supply bobbin B (the bobbin of the present invention) on which yarn is wound and take it onto a take-up bobbin (not shown) to form a package. The configuration of each yarn take-up unit 11 is known, therefore, detailed descriptions related to its configuration are omitted. The multiple yarn take-up units 11 are arranged, for example, in a left-right direction. The conveying path 12 is used to convey multiple trays T on which multiple supply bobbins B are respectively provided. The trays T are configured to support the supply bobbins B in a generally upright state. In this embodiment, placing the supply bobbins B on the tray T means placing the supply bobbins B on the tray T in a generally upright state (more details will be described later). The conveying path 12 includes a supply line 12a and a take-back line 12b. Supply line 12a is used to transport trays T from bobbin processing unit 4 to each yarn take-up unit 11. Retrieval line 12b is used to transport trays T discharged from each yarn take-up unit 11 back to bobbin processing unit 4. The trays T are transported on conveyor line 12, for example, via a conveyor device (not shown) capable of transporting the trays T.

[0033] The bobbin supply device 3 is configured to supply multiple yarn supply bobbins B to the bobbin processing device 4. More specifically, the bobbin supply device 3 includes, for example, a bobbin receiving box, a bobbin conveying device, a yarn end cutting device, and a bobbin arranging device (none shown). The bobbin receiving box receives multiple yarn supply bobbins B wound with yarn. The bobbin conveying device conveys the multiple yarn supply bobbins B received by the bobbin receiving box. The yarn end cutting device cuts off excess yarn extending from the yarn supply bobbins B. The bobbin arranging device arranges the multiple yarn supply bobbins B and conveys them to the bobbin processing device 4.

[0034] The bobbin processing device 4 is a device that places the yarn supply bobbins B on the tray T and performs prescribed processing on the yarn supply bobbins B on the tray T. For ease of explanation, the direction of conveying the tray T is referred to as the tray conveying direction. Figure 1 As shown, the bobbin processing device 4 is positioned between the automatic winding machine 2 and the bobbin supply device 3 in the tray conveying direction. The bobbin processing device 4 includes a conveying path 13, a bobbin setting device 14, a lead-in device 15, a bobbin extraction device 16, and a conveying device 17 (see reference). Figure 2 Conveyor path 13 is a path for conveying multiple pallets T. Conveyor path 13 consists of multiple path components 18 (see reference). Figure 1 The path components 18a, 18b, and 18c shown are formed. More specifically, the plurality of path components 18 are generally plate-shaped components arranged generally horizontally. The generally horizontal gaps formed between the plurality of path components 18 function as a conveying path 13. The conveying path 13 includes, for example, a supply line 13a, a recovery line 13b, and a bypass line 13c (see reference 18b). Figure 1 Supply line 13a is connected to supply line 12a of automatic winding machine 2. Recovery line 13b is connected to recovery line 12b of automatic winding machine 2. Bypass line 13c is a path for directly conveying multiple trays T from supply line 13a to recovery line 13b. Boll setting device 14 is a device that sequentially sets multiple yarn feed bobbins B from bobbin supply device 3 onto multiple trays T. Details of bobbin setting device 14 will be described later. Lead-in device 15 is a device that performs a preparatory process (known lead-in process) to allow each yarn take-up unit 11 to unwind yarn from the yarn feed bobbins B. Bobbin extraction device 16 is a device that extracts used yarn feed bobbins B from trays T. Conveying device 17 (see reference) Figure 2 The conveying device 17 is an apparatus for conveying multiple pallets T along the conveyor path 13 in the pallet conveying direction. That is, the direction in which multiple pallets T are conveyed on the conveyor path 13 (the direction in which the conveyor path 13 extends) is the pallet conveying direction of the present invention. The conveying device 17, for example, has a conveyor belt 19 for carrying multiple pallets T (see reference 17). Figure 3 (etc.). The conveying device 17 is configured to convey each pallet T at a specified conveying speed.

[0035] In addition, the tube handling device 4 has a control unit 24 (see reference). Figure 2 The control unit 24 is a computer device that controls each part of the bobbin processing device 4. The control unit 24 includes, for example, a CPU, ROM, and RAM. The CPU controls each part of the bobbin processing device 4 according to a program stored in the ROM and data stored in the RAM. The control unit 24 is electrically connected to the machine control device 5 (see reference). Figure 2 ).

[0036] The machine control device 5 is a computer device that controls various parts of the yarn take-up device 1. The machine control device 5, for example, has a CPU, ROM, and RAM. The machine control device 5 is electrically connected to each yarn take-up unit 11, bobbin supply device 3, and bobbin processing device 4 of the automatic winding machine 2 (see reference). Figure 2 Regarding the tube handling device 4, more specifically, the machine control device 5 and the control unit 24 (see reference). Figure 2 Electrical connection.

[0037] (Bollard installation device) Next, refer to Figures 2-5 A more detailed description of the configuration of the aforementioned tube mounting device 14 will be provided. Figure 3 This is a side view of the chute device 23 and its surrounding area, which will be described later. Figure 4 This is a rear view of the chute device 23 and its surrounding area. Figure 5 This is a top view of the chute device 23 and its surroundings. It should be noted that the left-right direction in this embodiment is different from... Figure 4 and Figure 5 The paper's left and right sides are reversed. That is, in this embodiment, the left side is... Figure 4 and Figure 5 The right side of the paper. In this embodiment, the right side is... Figure 4 and Figure 5 The left side of the paper.

[0038] like Figure 3 As shown, the bobbin setting device 14 includes, for example, a direction adjustment device 21, a tray stop 22, and a chute device 23. The direction adjustment device 21 is a device for adjusting the top and bottom (up and down orientation on the tray T) of the yarn feed bobbin B. The direction adjustment device 21 is positioned above the conveying path 13 and the tray stop 22. The direction adjustment device 21 is configured to adjust the orientation of the yarn feed bobbin B so that the portion of the yarn feed bobbin B that contacts the tray T (hereinafter referred to as the lower portion) faces downwards. The direction adjustment device 21 causes the yarn feed bobbin B, with its orientation adjusted, to fall towards the sliding section 31 described later. The direction adjustment device 21 is electrically connected to the control unit 24 (see reference). Figure 2 ).

[0039] The pallet stopper 22 is a device that temporarily stops the pallet T at its set position on the conveyor path 13. The set position is the position of the pallet T when the yarn feed tube B is installed on it. The pallet stopper 22 is configured to switch between a permitted state that allows the pallet T to move downstream in the pallet conveying direction and a prohibited state that prohibits such movement. The pallet stopper 22 is electrically connected to the control unit 24 (see reference). Figure 2 ).

[0040] Here, the construction of the pallet T will be described in more detail. The pallet T, for example, has a base portion Ta, a receiving portion Tb located above the base portion Ta, and a bolt portion Tc located above the receiving portion Tb (see reference). Figure 3 and Figure 4 The base portion Ta is a generally circular plate-shaped part. The base portion Ta is the part that contacts the conveyor belt 19. The base portion Ta is blocked by the pallet stop 22, thereby preventing the pallet T from moving from its set position. The receiving portion Tb is a generally circular plate-shaped part disposed on the upper side of the base portion Ta. When viewed from above, the outer diameter of the receiving portion Tb is smaller than the outer diameter of the base portion Ta (illustration omitted). The bolt portion Tc is a generally columnar part disposed on the upper side of the receiving portion Tb. When viewed from above, the outer diameter of the bolt portion Tc is smaller than the outer diameter of the receiving portion Tb (illustration omitted). The bolt portion Tc of the pallet T is relatively fitted into the lower part of the yarn supply bobbin B, and the lower end face of the yarn supply bobbin B contacts the receiving portion Tb, thereby supporting the yarn supply bobbin B in a generally upright state on the pallet T. This state is the state in which the yarn supply bobbin B is set on the pallet T.

[0041] The chute device 23 is a device for guiding the yarn feed tube B, which falls from the direction adjustment device 21, onto the tray T located at the set position. The chute device 23 is positioned above the conveyor path 13 and below the direction adjustment device 21. Figure 3 and Figure 4 As shown, the chute device 23 has a sliding section 31, a gate section 32, and a passage forming section 33. In summary, the yarn supply bobbin B, which slides down in the sliding section 31 and is temporarily received by the gate section 32, is placed on the tray T through the passage forming section 33.

[0042] The sliding section 31 is used to slide the yarn supply bobbin B, which has fallen from the direction adjustment device 21, toward the gate section 32. The sliding section 31, for example, has a first sliding member 31a (see reference). Figure 3 and Figure 4 ), second sliding component 31b (refer to Figure 4 ), anterior wall 31c (refer to) Figure 3 ) and posterior wall 31d (refer to) Figure 3 ).like Figure 4As shown, the first sliding member 31a is positioned, for example, to the right of the passage forming portion 33. The first sliding member 31a has a sliding surface 31a1 for sliding the yarn supply bobbin B. The sliding surface 31a1 extends, for example, obliquely upward to the left and obliquely downward to the left. The second sliding member 31b is positioned, for example, to the left of the passage forming portion 33. The second sliding member 31b has a sliding surface 31b1 for sliding the yarn supply bobbin B. The sliding surface 31b1 extends, for example, obliquely upward to the right and obliquely downward to the right. The front wall 31c is a plate-shaped wall disposed on the front side of the first sliding member 31a and the second sliding member 31b. The front wall 31c prevents the yarn supply bobbin B from falling forward. The rear wall 31d is a plate-shaped wall disposed on the rear side of the first sliding member 31a and the second sliding member 31b. The rear wall 31d prevents the yarn supply bobbin B from falling rearward. A sliding space for the yarn supply bobbin B to slide down is formed by the first sliding component 31a, the second sliding component 31b, the front wall 31c, and the rear wall 31d. The lower end of the sliding space is open and closed by a gate portion 32. A bobbin sensor 34 (see reference) is provided in the sliding portion 31. Figure 3 The bobbin sensor 34 is a sensor that detects the presence of a yarn supply bobbin B in the sliding space. The bobbin sensor 34 is, for example, a transmissive optical sensor having a light-emitting section 34a and a light-receiving section 34b. The presence of the yarn supply bobbin B is detected based on whether the light emitted from the light-emitting section 34a reaches the light-receiving section 34b. The bobbin sensor 34 is electrically connected to the control unit 24.

[0043] In the sliding section 31 configured as described above, the yarn supply bobbin B, which falls from the direction adjustment device 21, slides down on the first sliding member 31a or the second sliding member 31b and is received by the gate section 32. The yarn supply bobbin B received by the gate section 32 is detected by the bobbin sensor 34.

[0044] The gate section 32 is configured to allow or prohibit the supply of yarn bobbin B, which slides down in the sliding section 31, to the passage forming section 33. The gate section 32 has a gate 32a (see reference). Figure 3 and Figure 4 ) and gate drive unit 32b (refer to Figure 2 The gate 32a is positioned immediately below the sliding section 31. The gate 32a has, for example, a generally horizontally positioned, plate-like portion. The gate 32a opens and closes the opening at the lower end of the sliding space through this generally plate-like portion, thereby allowing or preventing the yarn supply bobbin B from falling into the passage forming section 33. More specifically, the gate 32a can be in a closed position (see...). Figure 4 (solid line) and open position (refer to) Figure 4 The gate 32a moves between the double-dotted lines. The closed position is the position of the gate 32a when the opening at the lower end of the sliding space is closed. The open position is the position of the gate 32a when the opening at the lower end of the sliding space is open. Gate drive unit 32b (refer to...) Figure 2 The gate is configured to drive the gate 32a to move, for example, in the left-right direction. The gate drive unit 32b has, for example, a cylinder (not shown) to move the gate 32a between a closed position and an open position. The gate drive unit 32b is electrically connected to the control unit 24.

[0045] The passage forming section 33 is configured to guide the yarn feed tube B toward the tray T located in the installation position. The passage forming section 33, for example, has multiple passage components 35 (see reference). Figure 4 The passage portion and frame component 36 of the present invention (see reference) Figure 3 as well as Figure 4 ), passage opening and closing part 37 (refer to) Figure 3 The plurality of passage components 35 are components that form passages for the yarn supply bobbin B. The plurality of passage components 35 are formed, for example, from a known metal plate. However, the material of the plurality of passage components 35 is not limited thereto. The plurality of passage components 35 guide the yarn supply bobbin B in a manner that the axial direction of the yarn supply bobbin B is in the vertical direction. As described later, the plurality of passage components 35 can be in a guided state (refer to...) Figure 4 double-dotted lines and Figure 5 (solid line) and allowable transport status (refer to) Figure 4 solid lines and Figure 5 The states change between the double-dotted lines. In the guiding state, the multiple passage components 35 are generally cylindrical as a whole. In this state, the space S (refer to the double-dotted lines) formed inside the multiple passage components 35 when viewed from above and below... Figure 5 This becomes the passageway for the yarn supply bobbin B. For example... Figure 5 As shown, when viewed from above, space S appears to be approximately square. However, the shape of space S is not limited to this, as long as the yarn supply tube B can pass through space S in the vertical direction.

[0046] More specifically, the plurality of passage components 35 include, for example, passage component 35L and passage component 35R (see reference). Figure 4 and Figure 5 ).like Figure 5 As shown, when viewed from above, the passage component 35L and the passage component 35R are respectively approximately L-shaped. The passage component 35L is, for example, a component that defines the left and front ends of the space S. Figure 4 and Figure 5As shown, the passage component 35L has, for example, a left side component 35La and a front side component 35Lb. The left side component 35La is located at the left end of the passage component 35L. The left side component 35La defines the left end of the space S. The front side component 35Lb is connected to the front end of the left side component 35La. The front side component 35Lb is located at the front end of the passage component 35L. The front side component 35Lb defines the front end of the space S. The passage component 35R is, for example, a component defining the right end and rear end of the space S. Figure 4 and Figure 5 As shown, the passage component 35R has, for example, a right side component 35Ra and a rear side component 35Rb. The right side component 35Ra is located at the right end of the passage component 35R. The right side component 35Ra defines the right end of the space S. The rear side component 35Rb is connected to the rear end of the right side component 35Ra. The rear side component 35Rb is located at the rear end of the passage component 35R. The rear side component 35Rb defines the rear end of the space S.

[0047] Through the passage forming section 33 thus configured, the yarn supply bobbin B is guided vertically toward the tray T located at the setting position. That is, when the gate 32a moves from the closed position to the open position, the yarn supply bobbin B on the gate 32a falls approximately vertically into the space S and is placed on the tray T. The yarn supply bobbin B, located immediately behind the tray T, exists within the space S.

[0048] Furthermore, for example, through-holes 35a (see reference) are formed on the multiple passage components 35 respectively. Figure 3 The aperture 35a is a through-hole for allowing light to pass through in the left-right direction. Here, "light" refers to the light emitted by the tube sensor 39, described later. Figure 3 In the diagram, only the passage 35a formed on the right-side component 35Ra is shown. Although omitted from the diagram, a passage 35a is also formed on the left-side component 35La. In space S (refer to...) Figure 5 When the yarn supply tube B is not present in space S, light passes through multiple passage ports 35a and multiple passage components 35. When the yarn supply tube B is present in space S, the light is blocked by the yarn supply tube B.

[0049] Multiple passage components 35 are supported on the frame component 36 via passage opening and closing parts 37. The multiple passage components 35 can change state between a guiding state and a permitted conveying state via the passage opening and closing parts 37. The guiding state is the state of the multiple passage components 35 when passage components 35L and 35R are close to each other, forming a space S. The permitted conveying state is the state of the multiple passage components 35 when the yarn supply bobbin B disposed on the tray T is allowed to be conveyed downstream in the tray conveying direction. More specifically, the passage component 35L in the permitted conveying state is, for example, located on the left side compared to the guiding state. The passage component 35R in the permitted conveying state is, for example, located on the right side compared to the guiding state. That is, the passage components 35L and 35R in the permitted conveying state are separated from each other compared to the guiding state. More specifically, the passage components 35L and 35R in the permitted conveying state are arranged in a position retracted from the conveying path 13. Thus, the conveying of the yarn supply bobbin B is permitted. Here, Figure 5 The passage components 35L and 35R move linearly when switching from the guiding state to the permitted conveying state. However, the opening and closing actions of the passage components 35L and 35R are not limited to this. For example, the passage components 35L and 35R can also be configured to open and close by an arc motion centered on a certain pivot point.

[0050] The frame component 36 is a component that supports the plurality of passage components 35 so that they are movable. The frame component 36 is, for example, a generally U-shaped component that is open at the bottom when viewed from the front-rear direction. The frame component 36 is, for example, configured to span the conveyor path 13. More specifically, as... Figure 4 As shown, the frame component 36 has a pair of legs 36a (legs 36L and 36R). A tray sensor 38 and a bobbin sensor 39 (see reference) are mounted on the pair of legs 36a. Figure 4 A passage opening / closing part 37 is mounted on the frame member 36. The frame member 36 supports a plurality of passage members 35 via the passage opening / closing part 37.

[0051] The passage opening / closing part 37 is configured to change the state of the plurality of passage components 35 between a guiding state and a permitted conveying state (i.e., to open and close the plurality of passage components 35). The passage opening / closing part 37 has a support member 37L (see reference). Figure 4 ), support component 37R (refer to) Figure 3 and Figure 4 ) and opening / closing drive unit 37a (see reference) Figure 2Support member 37L is a component of support passage member 35L. Support member 37L is driven to move in the left-right direction by opening / closing drive unit 37a. Support member 37R is a component of support passage member 35R. Support member 37R is driven to move in the left-right direction by opening / closing drive unit 37a. Opening / closing drive unit 37a drives the movement of support members 37L and 37R. Opening / closing drive unit 37a may have, for example, a cylinder and linkage mechanism (not shown). Opening / closing drive unit 37a moves support members 37L and 37R to a guide position (see reference). Figure 4 (double-dotted line) and allowed positions (refer to) Figure 4 The movement is between the solid lines. The guide position is the position of the support member 37L and the support member 37R when the state of the multiple passage components 35 is in the guide state. The allowable position is the position of the support member 37L and the support member 37R when the state of the multiple passage components 35 is in the allowable conveying state.

[0052] Tray sensor 38 (reference) Figure 4 The tray sensor 38 is a sensor used to detect the presence of a tray T at a set position. The tray sensor 38 is, for example, a transmissive optical sensor having a light-emitting part 38a and a light-receiving part 38b. The light-emitting part 38a is, for example, mounted on the lower end of the leg 36R. The light-receiving part 38b is, for example, mounted on the lower end of the leg 36L. The presence of the tray T is detected by whether the light emitted from the light-emitting part 38a reaches the light-receiving part 38b. The tray sensor 38 is electrically connected to the control unit 24.

[0053] The bobbin sensor 39 is used to detect whether a yarn supply bobbin B is provided on the tray T located at the setting position. The bobbin sensor 39 is, for example, a transmissive optical sensor having a light-emitting part 39a and a light-receiving part 39b. The light-emitting part 39a is, for example, located on the right side of the right-side component 35Ra. The light-receiving part 39b is, for example, located on the left side of the left-side component 35La. Light emitted from the light-emitting part 39a can pass through multiple ports 35a (see reference). Figure 3 The light reaches the light-receiving section 39b when the light emitted from the light-emitting section 39a arrives. The presence of the yarn supply bobbin B is detected by whether the light emitted from the light-emitting section 39a reaches the light-receiving section 39b. The bobbin sensor 39 is electrically connected to the control section 24.

[0054] The operation of the chute device 23 with the above configuration will be briefly explained. The yarn feed bobbin B slides down in the sliding section 31 and is temporarily received by the gate 32a, which is in the closed position. The yarn feed bobbin B received by the gate 32a is detected by the bobbin sensor 34. When the yarn feed bobbin B is detected, the control unit 24 controls the gate drive unit 32b to move the gate 32a to the open position. As a result, the yarn feed bobbin B falls by its own weight, is guided by the passage forming section 33 through the space S, and is placed on the tray T. The yarn feed bobbin B placed on the tray T is detected by the bobbin sensor 39. When the yarn feed bobbin B is detected, the control unit 24 controls the opening / closing drive unit 37a to change the state of the multiple passage components 35 from the guiding state to the allowable conveying state. As a result, the tray T containing the yarn feed bobbin B can be conveyed downstream in the tray conveying direction.

[0055] Here, for ease of explanation, the direction in which the yarn supply bobbin B is conveyed toward the tray T is referred to as the bobbin conveying direction. If the yarn Y (…) is wound around the yarn supply bobbin B… Figure 3 as well as Figure 4 If the yarn supply bobbin B is placed on the tray T while hooked at a point upstream of the bobbin conveying direction via the chute device 23, the following problems may occur. Specifically, the yarn Y may detach from the yarn supply bobbin B on the tray T, which is being conveyed, and the yarn Y may extend excessively. Therefore, the possibility that the yarn Y may hook onto the bobbin handling device 4 while the tray T is being conveyed increases. Additionally, the yarn Y extending from multiple yarn supply bobbins B may become entangled, hindering the movement of these multiple yarn supply bobbins B. Therefore, to avoid conveying the yarn supply bobbin B while the yarn Y extends excessively from the yarn supply bobbin B placed on the tray T via the chute device 23, the chute device 23 is configured as follows.

[0056] (Detailed composition of the chute device) Reference Figures 2-6 The configuration of the chute device 23 will be described in further detail. Figure 6 This is a rear view of the cutter section 40, which will be described later. It should be noted that in this embodiment, the left side is... Figure 6 The right side of the paper, in this embodiment, is... Figure 6 The left side of the paper.

[0057] The chute device 23 has a cutter section 40 (see reference) for cutting the yarn Y extending from the yarn supply tube B provided on the tray T. Figure 3 , Figure 5 as well as Figure 6 The cutter section 40 is positioned above the conveyor path 13 (see reference). Figure 3 The main components of the cut-off section 40 are, for example, arranged on the rear side of the sliding section 31, the gate section 32, and the passage forming section 33 (see reference). Figure 3 In other words, the main components of the cutter section 40 are arranged downstream of the passage forming section 33 in the pallet conveying direction. For example... Figure 6 As shown, the cutter part 40 has a fixing part 41, a position adjustment frame 42 (the adjustment part of the present invention), a blade part 43, and a cutter drive part 44.

[0058] The fixing part 41 is a component whose position is fixed relative to the conveying path 13. The fixing part 41 is fixed to the rear end of the sliding part 31, for example, by a fixing tool (not shown). However, the component fixed by the fixing part 41 is not limited to the sliding part 31. The fixing part 41 may be disposed, for example, on the upstream side of the position adjustment frame 42 in the pallet conveying direction. Figure 6 (The inside of the paper). For example... Figure 6 As shown, the fixing part 41 includes, for example, a fixing part 41a and a fixing part 41b. The fixing part 41a is, for example, the right end of the mounting position adjustment frame 42. Figure 6 The portion 41b is located at the left end of the paper. A threaded hole (not shown) is formed in the fixing part 41a for example, for screwing in the bolt 45a. The fixing part 41b is, for example, the left end of the mounting position adjustment frame 42. Figure 6 The portion at the right end of the paper (in the image). A threaded hole (not shown) is formed in the fixing part 41b for, for example, screwing in the bolt 45b.

[0059] The position adjustment frame 42 is a frame component used to adjust the position of the cut yarn Y (hereinafter referred to as the cutting position, details of which will be described later) in the vertical direction. The position adjustment frame 42 is formed, for example, from a metal plate component. The position adjustment frame 42 is detachably mounted to the fixing part 41, for example, by bolts 45a and 45b. Bolts 45a and 45b are known bolts, for example, those having heads (reference numerals omitted). The thickness direction of the main part of the position adjustment frame 42 (the main section described later) is preferably substantially parallel to the front-back direction (i.e., the pallet conveying direction at the setting position). The reason for this will be explained later. Furthermore, the position adjustment frame 42 is, for example, positioned rearward (downstream in the pallet conveying direction) from the passage forming part 33. That is, when viewed from the vertical direction, the position adjustment frame 42 is preferably configured separately from the passage forming part 33. The reason for this will also be explained later.

[0060] The position adjustment frame 42 can be divided into multiple main partitions according to its purpose (see reference). Figure 6 (The dashed lines indicate this). In this embodiment, for ease of explanation, multiple main sections are defined in a single frame component. However, this is not a limitation; the position adjustment frame 42 can also be constructed by fixing multiple components, which are divided corresponding to the main sections, to each other. The position adjustment frame 42 has a first position adjustment section 46, a second position adjustment section 47, a drive source support section 48, and a guide section 49.

[0061] The first position adjustment part 46 is a roughly rectangular portion when viewed from the front and back. The first position adjustment part 46 is, for example, the rightmost part of the position adjustment frame 42. Figure 6 The portion on the far left of the paper (in the image). The first position adjustment portion 46 is, for example, the portion that is threadedly fixed to the fixing portion 41a by a bolt 45a. The first position adjustment portion 46 has, for example, a plurality of through holes 46a. The plurality of through holes 46a are arranged in the vertical direction. The plurality of through holes 46a respectively penetrate the first position adjustment portion 46 in the front-back direction. The plurality of through holes 46a respectively extend relatively long in the left-right direction. In this embodiment, the number of the plurality of through holes 46a is 10, but it is not limited to this.

[0062] The second position adjustment part 47 is a roughly rectangular portion when viewed from the front and back. The second position adjustment part 47 is, for example, the leftmost part of the position adjustment frame 42. Figure 6 The portion on the far right of the paper (in the image). The second position adjustment part 47 is, for example, the portion that is threadedly fixed to the fixing part 41b by a bolt 45b. The second position adjustment part 47 has, for example, a plurality of through holes 47a. The plurality of through holes 47a are arranged in the vertical direction. The plurality of through holes 47a respectively penetrate the second position adjustment part 47 in the front-back direction. The plurality of through holes 47a respectively extend relatively long in the left-right direction. The plurality of through holes 47a are respectively provided corresponding to the plurality of through holes 46a. The position of each through hole 47a in the vertical direction is approximately the same as the position of the corresponding through hole 46a in the vertical direction. In this embodiment, the number of the plurality of through holes 47a is 10, but it is not limited to this.

[0063] The drive source support portion 48 is, for example, disposed in the left-right direction between the lower portion of the first position adjustment portion 46 and the lower portion of the second position adjustment portion 47. The drive source support portion 48 extends relatively long in the left-right direction. The drive source support portion 48 supports the cylinder 56, which will be described later.

[0064] The guide portion 49 is, for example, a portion disposed below the drive source support portion 48. Figure 6 As shown, a guide groove 49a for guiding the yarn Y is formed in the guide portion 49. The guide groove 49a is, for example, a generally V-shaped groove that is open at the bottom. More specifically, the guide groove 49a is formed by a guide surface 49a1 and a guide surface 49a2. When viewed from the front-rear direction, the guide surface 49a1, for example, points diagonally downward to the right (…). Figure 6 (The paper extends diagonally downwards to the left). In other words, the guiding surface 49a1 extends diagonally downwards to the left ( Figure 6 (The lower right side of the paper). Guide surface 49a2 is positioned to the left of guide surface 49a1 ( Figure 6(The right side of the paper). When viewed from the front and back, the guide surface 49a2 appears, for example, diagonally downward to the left ( Figure 6 (The paper extends diagonally downwards to the right). In other words, the guiding surface 49a2 extends diagonally downwards to the right ( Figure 6 (The lower left side of the paper). The guide groove 49a is, for example, arranged in the left-right direction (i.e., the width direction at the location of the conveyor path 13) at a position slightly offset to the left relative to the center of the conveyor path 13 (refer to center line C). The reason for this will be explained later.

[0065] The blade 43 is a component that contacts yarn Y and cuts yarn Y. For example... Figure 6 As shown, the cutting edge 43 has a fixed cutting edge 51 and a movable cutting edge 52. The cutting edge 43 is configured to open and close by moving (more specifically, oscillating) the movable cutting edge 52 relative to the fixed cutting edge 51. The fixed cutting edge 51 has, for example, a generally straight cutting tip. The fixed cutting edge 51 is, for example, fixed to the guide portion 49 of the position adjustment frame 42. The cutting tip of the fixed cutting edge 51 extends at least downward (i.e., at least towards the conveyor path 13 side in the guide direction). When viewed from the front-rear direction, the cutting tip of the fixed cutting edge 51 is, for example, arranged along the guide surface 49a1. The fixed cutting edge 51 is, for example, arranged on the downstream side of the guide portion 49 in the tray conveying direction ( Figure 6 The movable blade 52 has, for example, a generally straight blade tip. The blade tip of the movable blade 52 extends at least downward (i.e., at least toward the conveyor path 13 in the guide direction). The movable blade 52 is, for example, disposed downstream of the fixed blade 51 in the pallet conveying direction. Figure 6 (The paper surface near the front). The movable blade 52 is, for example, fixed to the connecting member 57 described later. The movable blade 52 is, for example, configured to swing relative to the fixed blade 51 about the pivot axis 52a. The axis of the pivot axis 52a is, for example, substantially parallel to the front-back direction. The movable blade 52 can be in the open position (see...) Figure 6 (solid line) and the closing position (refer to) Figure 6 The movable blade 52 swings between the double-dotted lines. The open position is the position of the movable blade 52 when the blade 43 is open. At this time, the guide groove 49a is open when viewed from the front and rear directions. That is, when the movable blade 52 is in the open position, the yarn Y can enter the guide groove 49a. When viewed from the front and rear directions, the tip of the movable blade 52 in the open position is arranged, for example, along the guide surface 49a2. The closed position is the position of the movable blade 52 when the blade 43 is closed. By moving the movable blade 52 from the open position to the closed position, the yarn Y that has entered the guide groove 49a can be cut.

[0066] like Figure 5As shown, a cover member 53 is provided, for example, immediately behind the blade 43. The cover member 53 covers the blade 43 and the cutter drive 44 from the rear. The cover member 53 is fixed to the position adjustment frame 42, for example, by a fixing tool (not shown). The cover member 53 has, for example, a guide groove (not shown) that has a shape substantially the same as the guide groove 49a of the guide 49. The guide groove of the cover member 53 is positioned substantially at the same location as the guide groove 49a in both the vertical and horizontal directions (not shown).

[0067] The cutter drive unit 44 is configured to oscillate between the open and closed positions to drive the movable blade 52. For example... Figure 6 As shown, the cutter drive unit 44 includes, for example, a cylinder 56 and a connecting member 57. The cylinder 56 is actuated by compressed air. The cylinder 56 has a cylinder body 56a, a piston rod 56b, and a rod end 56c. The cylinder body 56a is supported, for example, on the drive source support 48 of the position adjustment frame 42. The cylinder body 56a extends, for example, generally in the left-right direction. The piston rod 56b protrudes from the cylinder body 56a and extends and retracts by compressed air. The rod end 56c is fixed to the front end of the piston rod 56b. The connecting member 57 is mounted on the rod end 56c in a swingable manner. The connecting member 57 is located between the rod end 56c and the movable blade 52 in the direction of force transmission of the cylinder 56. The connecting member 57 is swingably mounted on the rod end 56c. The connecting member 57 is configured to swing about a swing axis 57a. The axial direction of the swing axis 57a is, for example, generally parallel to the front-back direction. The supply of compressed air to cylinder 56 and the discharge of compressed air from cylinder 56 are switched by a solenoid valve (not shown). Solenoid valve and control unit 24 (see reference). Figure 2 Electrical connection. That is, the shut-off drive unit 44, including the solenoid valve, is electrically connected to the control unit 24 (see reference). Figure 2 For example, when the piston rod 56b is retracted, the movable blade 52 is in the open position (see reference). Figure 6 (Solid line). For example, with the piston rod 56b extended, the movable blade 52 is in the closed position (see reference). Figure 6 (The double-dotted line). The action of the cutter drive 44, which moves the movable blade 52 from the open position to the closed position, is a cutting action to cut the yarn Y.

[0068] Additionally, a pallet stop 58 is provided on the conveying path 13 of the tube handling device 4, on the rear side of the setting position (downstream of the setting position in the pallet conveying direction). Figure 3 Pallet stop 58 has, for example, the same configuration as pallet stop 22. Pallet stop 58 is electrically connected to control unit 24 (see reference). Figure 2 ).

[0069] Furthermore, the control unit 24 pre-stores information about a predetermined time from when the states of the multiple passage components 35 are in a conveying-allowed state until the cutter drive unit 44 performs a cutting operation. In this embodiment, the control unit 24 is included in the chute device 23 (see reference 24). Figure 2 ).

[0070] (Cut-off location) The position (cutting position) at which the yarn Y is cut by the cutter section 40 will be explained. First, refer to... Figure 6 Examples illustrating the definition of cutting positions in the vertical and horizontal directions are provided. For example... Figure 6 As shown, when viewed from the front-rear direction, the point where guide surfaces 49a1 and 49a2 intersect is defined as point Pa. Point Pa is the position of the upper ends of guide surfaces 49a1 and 49a2. Additionally, as... Figure 5 As shown, when viewed from above, the cutting position in the front-to-back direction is defined by the point between the fixed blade 51 and the movable blade 52 (the same point as point Pa mentioned above). Before being cut, the yarn Y is guided by the guide groove 49a to a position approximately the same as point Pa. Thus, the yarn Y is cut at a position approximately the same as point Pa. Therefore, the cutting position can be defined, for example, by point Pa. The cutting position is located downstream of the set position in the pallet conveying direction.

[0071] More specifically, when viewed from above and below (guide direction), the cut-off position is located on the outer side of the passage component 35 (see reference). Figure 5 Additionally, the cutting position converges to the inside of the conveyor path 13 in the left-right direction (width direction of the conveyor path 13) (see reference). Figure 5 as well as Figure 6 Additionally, such as Figure 6 As shown, the cutting position is located to the left of the center of the conveying path 13 in the left-right direction (on one side in the width direction of the invention).

[0072] (Yarn cutting method) Main reference Figure 7 A method for cutting yarn Y using a cutter section 40 having the above configuration will be described. Figure 7 This is a flowchart related to the cutting method of yarn Y extending from the yarn supply bobbin B.

[0073] In the initial state, an empty tray T without a yarn supply bobbin B is conveyed along the conveyor path 13 toward the bobbin setting device 14. Meanwhile, the yarn supply bobbin B, with yarn Y wound on it, is supplied from the direction adjustment device 21 to the chute device 23.

[0074] When tray T reaches the set position ( Figure 7In step S101, tray T is detected by tray sensor 38. Tray T, having reached the setting position, is prevented from moving by tray stopper 22, which is in a prohibited state. Additionally, when the yarn feed bobbin B reaches the gate 32a (again, step S101), the yarn feed bobbin B is detected by bobbin sensor 34. When both of the above conditions are met, control unit 24 causes gate drive unit 32b to open gate 32a (step S102). Thus, the yarn feed bobbin B is guided by passage forming unit 33 along the guide direction toward tray T located at the setting position. In other words, the yarn feed bobbin B falls in a generally vertical direction and is placed on tray T (for example, see reference...). Figure 4 The first bobbin B1 is shown. When the first bobbin B1 reaches the tray T (step S103), the first bobbin B1 is detected by the bobbin sensor 39. At this time, the control unit 24 causes the gate drive unit 32b to close the gate 32a (step S104). As a result, the gate 32a moves in the width direction, preventing the supply bobbin B to the passage forming unit 33 after the first bobbin B1 (for example, see reference). Figure 4 The second bobbin (B2) shown is supplied to the passage forming section 33. Simultaneously, as a result, the gate 32a causes a portion of the yarn Y extending from the first bobbin B1 to be positioned to the left of the center in the width direction of the conveying path 13. Figure 4 (Right side of the paper). The left side corresponds to one side in the width direction of the present invention. In addition, the control unit 24 controls the opening and closing drive unit 37a to set the state of the plurality of passage components 35 to the allowable conveying state. Furthermore, the control unit 24 switches the state of the tray stop 22 to the allowable state and sends the tray T downstream in the tray conveying direction (also step S104). The control unit 24 starts counting the time when the state of the plurality of passage components 35 is set to the allowable conveying state.

[0075] The yarn Y extends from the yarn supply bobbin B disposed on the tray T at least upward (i.e., in the guiding direction, to the side opposite to the setting position). As the tray T is conveyed from the setting position to the downstream side in the tray conveying direction, the yarn Y is guided by the guide portion 49 and enters the guide groove 49a (see reference 49a). Figure 6 Additionally, the tray T delivered from the set position is stopped by a tray stop 58 that is in a prohibited state (see reference). Figure 3 Movement is prohibited again.

[0076] When the predetermined time has elapsed since the start of the count (step S105), the control unit 24 causes the cutter drive unit 44 to perform a cutting operation (step S106). In other words, the control unit 24 causes the cutter drive unit 44 to perform a cutting operation when it determines that the yarn supply bobbin B provided on the tray T is at a predetermined position downstream of the tray conveying position in the tray conveying direction. As a result, the portion of the yarn Y that is opposite to the yarn supply bobbin B in the guiding direction across the cutting position is separated from the yarn supply bobbin B. Furthermore, the predetermined position can be deduced based on the setting position, the conveying speed of the conveying device 17 on the tray T, and the predetermined time. Afterward, the control unit 24 switches the state of the tray stop 58 to the allow state and sends the tray T downstream in the tray conveying direction (step S107). As described above, the yarn Y extending from the yarn supply bobbin B is cut.

[0077] (Method for adjusting the cutting position) Next, refer to Figure 6 as well as Figure 8 The method for adjusting the cutting position in the cutter section 40 will be explained. Figure 8 This diagram illustrates the adjustment of the cutting position. By adjusting the position of the frame 42 in the vertical direction, the cutting position can be adjusted in the vertical direction. The reason for adjusting the cutting position is as follows. The axial length specification of the yarn feed tube B set on the tray T can be freely changed to some extent according to the user's wishes. For example, assuming the conventional yarn feed tube B is used (refer to...), Figure 6 Users new to use shorter yarn supply bobbins B (refer to) Figure 8 The condition of the yarn supply bobbin Bs is shown. In this case, before the cutting position is adjusted, the vertical distance between the cutting position and the upper end of the yarn supply bobbin Bs becomes relatively long. Therefore, even if the yarn Y is cut by the cutter section 40, the yarn Y may extend a considerable distance from the yarn supply bobbin B. Therefore, in order to shorten the vertical distance between the cutting position and the upper end of the yarn supply bobbin Bs, the operator performs the following operations.

[0078] In the initial state, for example, Figure 6 (as well as Figure 8As shown by the double-dotted line, a bolt 45a is inserted into the fifth through hole 46a from the top among the plurality of through holes 46a. Additionally, a bolt 45b is inserted into the fifth through hole 47a from the top among the plurality of through holes 47a. The operator, for example, uses a tool not shown to remove bolts 45a and 45b from the fixing part 41. This removes the position adjustment frame 42 from the fixing part 41. Next, the operator, for example, moves the position adjustment frame 42 downwards while holding it by hand. Then, the operator, for example, inserts bolt 45a into the third through hole 46a from the top and bolt 45b into the third through hole 47a from the top (see reference). Figure 8 (Solid line). In this state, the operator installs bolts 45a and 45b onto the fixing part 41 respectively. As a result, the position adjustment frame 42 and the components mounted thereon are adjusted in the vertical direction. The position adjustment frame 42 is configured to allow the cutting position to be moved vertically to a position overlapping with the plurality of passage components 35 (see, for example, reference). Figure 3 ).

[0079] As described above, the position adjustment frame 42 has multiple through holes 46a and multiple through holes 47a. Therefore, the position of the position adjustment frame 42 in the guide direction can be adjusted simply by aligning the desired through holes 46a and 47a with their corresponding threaded holes in the vertical direction. In other words, in the guide direction, a cutting position can be selected from a limited number of candidates. Therefore, even an inexperienced operator can easily adjust the position of the position adjustment frame 42 in the guide direction.

[0080] As described above, the chute device 23 includes a cutter section 40. The yarn Y extending from the yarn supply bobbin B disposed on the tray T is cut by the cutter section 40 at a cutting position downstream of its disposed position in the tray conveying direction. As a result, a portion of the yarn Y that is opposite to the yarn supply bobbin B in the guiding direction, separated from the yarn supply bobbin B by the cutting position, is separated from the yarn supply bobbin B. Therefore, the yarn Y extending from the yarn supply bobbin B, hooked at a certain point upstream in the bobbin conveying direction, can be shortened. Therefore, it is possible to avoid conveying the yarn supply bobbin B in a state where the yarn Y extends excessively from the yarn supply bobbin B disposed on the tray T via the chute device 23.

[0081] Furthermore, the cutter section 40 has a position adjustment frame 42. The axial length of the yarn feed bobbin B can vary depending on the specifications of the yarn feed bobbin B. When a relatively short yarn feed bobbin B is placed on the tray T, the distance between the position of the end of the yarn feed bobbin B opposite to the tray T (hereinafter referred to as the bobbin tip position) and the cutting position in the guiding direction may become longer. Therefore, even if the yarn Y is cut by the cutter section 40, the yarn Y may extend a relatively long distance from the yarn feed bobbin B. In this embodiment, the cutting position can be adjusted in the guiding direction. As a result, the cutting position can be made closer to the bobbin tip position in the guiding direction. Therefore, the length of the yarn Y extending from the yarn feed bobbin B can be minimized.

[0082] Furthermore, the position adjustment frame 42 is configured to move the cutting position in the guiding direction to a position overlapping with the multiple passage components 35. This allows the cutting position to be as close as possible to the front end of the bobbin in the guiding direction. Consequently, the length of yarn Y extending from the yarn supply bobbin B can be minimized.

[0083] Furthermore, the cutting edge 43 extends at least towards the conveying path 13 in the guiding direction. Therefore, compared to the case where the cutting edge 43 extends, for example, in a direction perpendicular to the guiding direction, the cutting position can be made closer to the front end of the bobbin. Thus, the length of yarn Y extending from the yarn supply bobbin B can be minimized.

[0084] Furthermore, the cutting position converges to the inside of the conveying path 13 in the width direction. Therefore, compared to the case where the cutting position is located on the outside of the conveying path 13 in the width direction, the distance in the width direction between the location where the yarn supply bobbin B is located and the cutting position can be shortened. Thus, the length of yarn Y extending from the yarn supply bobbin B can be minimized.

[0085] Furthermore, the chute device 23 includes a gate 32a. In this embodiment, the gate 32a is configured such that a portion of the yarn Y extending from the first bobbin B1 is positioned to one side in the width direction relative to the center of the conveying path 13. In this configuration, the cutting position is located to one side in the width direction relative to the center of the conveying path 13. Therefore, the yarn Y can be smoothly guided towards the cutting position.

[0086] Furthermore, when the control unit 24 determines that the yarn supply bobbin B installed on the tray T is located at a predetermined position downstream of the tray in the conveying direction from its installation position, the cutter unit 40 performs a cutting operation. This ensures that the lengths of the multiple yarns Y extending from the multiple yarn supply bobbins B on the conveying path 13 are uniform.

[0087] Furthermore, the guiding direction is parallel to the vertical direction. By causing the yarn supply bobbin B to fall vertically within the space S formed by the multiple passage components 35, the yarn supply bobbin B can be positioned on the tray T. Therefore, the installation area of ​​the passage forming section 33 can be reduced. Therefore, the large size of the chute device 23 in the horizontal direction can be suppressed.

[0088] Next, variations of the described embodiment will be described. Wherein, parts having the same structure as the described embodiment will be labeled with the same reference numerals, and their descriptions will be omitted as appropriate.

[0089] (1) In the described embodiment, when viewed from the guiding direction, the cutting position is positioned outside the plurality of passage components 35. Furthermore, by moving the position adjustment frame 42, the cutting position can be moved in the guiding direction to a position overlapping with the plurality of passage components 35. However, this is not a limitation. When viewed from the guiding direction, the cutting position may also overlap with the plurality of passage components 35 or the space S. However, in this case, the adjustment range of the cutting position in the guiding direction is limited compared to the described embodiment. That is, the cutting position needs to be adjusted within a range where the blade 43 and its surrounding components do not interfere with the plurality of passage components 35.

[0090] (2) In the embodiment described above, the position adjustment frame 42 has a plurality of through holes 46a and a plurality of through holes 47a. However, it is not limited to this. As a configuration for adjusting the position of the position adjustment frame 42 in the guide direction, for example, a single through hole (not shown) extending in the vertical direction may be provided instead of the plurality of through holes 46a. The same applies to the plurality of through holes 47a. Thus, by finely adjusting the position of the position adjustment frame 42 in the guide direction, the cutting position can also be finely adjusted. However, in this case, a relatively high level of skill is required to adjust the cutting position.

[0091] (3) In the embodiment described above, the operator adjusts the cutting position in the guide direction by moving the position adjustment frame 42 in the guide direction. However, this is not a limitation. For example, an actuator (not shown) capable of moving the position adjustment frame 42 may also be provided. Alternatively, the cutter section 40 may not have a position adjustment frame 42. However, in this case, in order to change the cutting position in the guide direction, it is necessary, for example, to prepare a cutter section (not shown) of a different specification from the cutter section 40 and replace the cutter section 40 with the cutter section 40.

[0092] (4) In the embodiments described above, the cutting edge 43 extends at least downward (towards the conveying path 13 in the guide direction). However, it is not limited to this. The cutting edge 43 may also extend in a direction perpendicular to the guide direction, for example.

[0093] (5) In the embodiments described above, the cutting position converges to the inside of the conveying path 13 in the width direction of the conveying path 13. However, this is not a limitation. The cutting position may also be located on the outside of the conveying path 13 in the width direction of the conveying path 13, for example.

[0094] (6) In the embodiments described above, the cutting position is located on one side of the center of the conveying path 13 in the width direction. However, it is not limited to this. The cutting position may also be located at approximately the same position as the center of the conveying path 13 in the width direction.

[0095] (7) In the embodiment described above, the control unit 24 stores information for a predetermined time in advance. Based on this, the control unit 24 starts counting the time from the moment the states of the multiple passage components 35 are set to the allowable conveying state. However, it is not limited to this. For example, the control unit 24 may also store information for a predetermined time from the time from moving the gate 32a to the open position to the time from when the cutter drive unit 44 performs the cutting action. Based on this, the counting of the time can also start at the timing when the gate 32a moves to the open position. That is, the trigger for starting the time counting can be set to some extent freely within the time range that allows it to infer that the tray T delivered from the set position is at a predetermined position on the conveying path 13.

[0096] (8) In the embodiment described above, the control unit 24 causes the cutter unit 40 to perform a cutting operation when a predetermined time has elapsed since the start of the count. However, this is not a limitation. For example, a sensor (not shown) for detecting the tray T may be provided on the conveyor path 13 in addition to the tray sensor 38. The control unit 24 may also cause the cutter unit 40 to perform a cutting operation when the tray T is detected by the sensor. In this case, the control unit 24 also causes the cutter unit 40 to perform a cutting operation when it determines that the yarn feed tube B provided on the tray T is located at a predetermined position on the conveyor path 13.

[0097] (9) In the embodiments described above, the control unit 24 is included in the slide device 23. However, it is not limited thereto. For example, the slide device 23 may also be controlled by the machine body control device 5. In this case, the machine body control device 5 is equivalent to the control unit of the present invention.

[0098] (10) In the embodiments described above, the cutter unit 40 is controlled by the control unit of the present invention. However, it is not limited thereto. For example, the cutter unit 40 may also be configured to perform a cutting operation according to an instruction from an operation unit (not shown). In this case, the operator may also operate the operation unit. Alternatively, the cutter unit 40 may also be configured to be manually operated by the operator.

[0099] (11) In the embodiments described above, the guiding direction is parallel to the vertical direction. However, it is not limited to this. The guiding direction may also be inclined relative to the vertical direction, for example.

Claims

1. A chute device for placing a bobbin wound with yarn on a tray on a conveying path, characterized in that, have: The passageway guides the bobbin along a predetermined guide direction toward the tray located at a predetermined position on the conveying path, so that the axial direction of the bobbin is along a predetermined guide direction. as well as The cutter section cuts the yarn from the bobbin disposed on the tray, extending at least in the guide direction toward the side opposite to the disposed position, at a predetermined cutting position downstream of the disposed position in the direction of conveying the tray in the conveying path, i.e., in the tray conveying direction.

2. The chute device according to claim 1, characterized in that, The cutter section has an adjustment section that allows the cutting position to be adjusted in the guide direction.

3. The chute device according to claim 2, characterized in that, The cutting position is the location outside the passage when viewed from the guiding direction. The adjustment unit is configured to adjust the cutting position at a location that overlaps with the passage portion in the guiding direction.

4. The chute device according to any one of claims 1 to 3, characterized in that, The cutter portion has a blade that contacts the yarn at the cutting position. The cutting edge extends toward the side of the conveying path at least in the guiding direction.

5. The chute device according to any one of claims 1 to 4, characterized in that, The cutting position converges to the inside of the conveying path in the width direction of the conveying path.

6. The chute device according to any one of claims 1 to 5, characterized in that, The device includes a gate positioned on the opposite side of the installation location, across the passageway in the guiding direction, capable of allowing or preventing the supply of the bobbin to the passageway. The gate is configured to move in the width direction of the conveying path at the specified location. Furthermore, by moving in the width direction with the first bobbin (which is the bobbin itself) positioned on the tray on the conveying path, it prevents the supply of a second bobbin (which is the bobbin supplied to the passage after the first bobbin) to the passage portion, and causes a portion of the yarn extending from the first bobbin to be positioned to one side in the width direction beyond the center of the conveying path. The cutting position is located on one side of the conveying path in the width direction, closer to the center.

7. The chute device according to any one of claims 1 to 6, characterized in that, The device includes a control unit that, when it determines that the bobbin disposed on the tray is located at a predetermined position downstream of the tray in the conveying direction from the disposed position, causes the cutter unit to perform a yarn cutting operation.

8. The chute device according to any one of claims 1 to 7, characterized in that, The guiding direction is parallel to the vertical direction.

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