TW201702446A - Loading arrangement for a spin-knit machine - Google Patents

Abstract

The invention relates to a loading arrangement (100) for a spin-knit machine comprising a loading device (102-104, 209-212, 301, 403, 404, 503-506), wherein the loading device (102-104, 209-212, 301, 403, 404, 503-506) is movable at least with one part along at least one preset or presettable path and is suitable for loading the spin-knit machine (1, 1', 1", 1''') with full roving bobbins (7).

Description

Loading equipment for rotary knitting machines

The present invention relates to a loading apparatus for a rotary knitting machine, a rotary knitting machine having a loading apparatus according to the present invention, and a method for loading a rotary knitting machine.

The difference between a circular knitting machine (also known as a rotary knitting machine) is that the knitwear is not composed of standard crepe, but is composed of a card material of carding, roving card or the like, and the fiber material is in the needle. Before the formation of the trace, the drafting device of the prior art spinning technique is stretched to a preselected fineness, and after exiting from a drafting device, a spinning device is used to transport to a standard knitting system or the like. The status of the person. In this case, a carding, roving card or the like is disposed on the roving tube. The roving bobbin is attached to the hanger of the rotary knitting machine, and the hanger is attached to the periphery of the rotary knitting machine at the height of the drafting device. Each of the roving tubes accommodates approximately 2-3 kg of fibrous material, ready for use in a knitting operation on a rotary knitting machine. The roving is unscrewed from the bobbin and fed to the machine for a length of approximately 1 m.

So far, new roving tubes are still often stored in cartons next to the machine or Storage area. When a bobbin is used for reloading or the machine needs to be reloaded, the roving bobbin must be manually removed from the carton and placed on the hanger.

The empty roving tube is removed from the hanger by hand and replaced with a full roving tube. Furthermore, the front end of the fibrous material (roving) must be manually guided through the guiding device and a card sensor and then into the drafting device.

When replacing the bobbin, it depends on how fast the operator can and how many roving tubes must be changed or replaced. This action is quite time consuming and causes the individual knitting system or the entire rotary knitting machine to stop. This results in a decrease in the productivity of the rotary knitting machine.

The roving tubes stored in the carton must be carried by the operator to individual rotary knitting machines. After it is removed from the carton, the bobbin is placed over the hanger of the rotary knitting machine in an end-to-end manner. The operator also threaded the roving into the card sensor in an end-to-end manner. Both are inconvenient for the operator.

Accordingly, it is an object of the present invention to provide a possibility to operate a rotary knitting machine in a more efficient and user friendly manner.

The object of the invention is achieved by a loading device for a rotary knitting machine comprising at least one loading device, wherein the loading device is at least partially movable along at least one predetermined or predefinable path and is adapted to be full The roving tube is loaded with a rotary knitting machine. In this case, the predetermined path may be a guide or a virtual path, for example, one end of a robot arm may move along the path. This path can also be preset, for example by a control device. In particular, the loading devices can be grouped into a robotic arm. It is arranged in a rotary knitting machine or on a machine.

This loading device assists the operator when replacing rovings and removing defects. A guiding device is provided and the loading device can be moved at least along the area of the guiding device and at the level of the drafting device of the rotary knitting machine. In this case, the guiding device can, for example, be close to the ground and the loading device can be carried to the correct height by means of an arm member, for example by means of a winder in the region of the drafting device. In this case it is conceivable that the loading device can be vertically adjusted by a crane device.

Alternatively, it is envisioned that the guiding device is located at the level of a drafting device and the loading device can be moved along the guiding device at the level of the drafting device. The loading device can have a winder. For example, the crepe can be placed at the end of a robotic arm. Advantages can be obtained if the crepe is suitable for the exchange of roving tubes of a rotary knitting machine. The replacement of the roving or bobbin can also be carried out automatically by means of the loading device.

Advantageously, the crepe can be adapted to feed the roving to one of the carding sensors and/or a drafting device of the rotary knitting machine. A crepe can pick one end of the roving after replacing the roving tube and feeding the card sensor and/or the drafting device of the rotary knitting machine. The replacement of the roving bobbin can be automated as a result.

Furthermore, the crepe can be configured and adapted to detect defects from a roving. The manual operation as shown in the German application DE 10 2008 008 210 A1, which is the content of the present application, is carried out by a crepe according to the invention. Therefore, these process steps can be performed relatively quickly and without regard to the operator.

When the loading device has a storage for a full and/or empty roving tube It is especially advantageous when the component is used. Thus, a loading device can hold at least one, preferably a plurality of, ready-to-fill roving tubes and guide along the guiding device to a position on the periphery of the rotary knitting machine for replacement of the roving bobbin. Empty roving tubes can also be transported so that they can be removed later, for example by an operator.

According to one aspect of the invention, a drive can be provided for moving the loading device or a portion thereof along a predetermined or pre-settable path, particularly a guiding device. It is thus possible to move the loading device to a position along the rotary knitting machine in an automatic manner, i.e. where the loading device is required to be inserted.

Furthermore, a control device is provided for controlling the loading device. In this case, the control device can be combined to drive both the actuating loading device and the winder. The control device can also be designed to control a plurality of loading devices. The control device can be coupled to a rotary knitting machine or a control device integrated therewith.

According to a preferred embodiment of the invention, a storage space is provided for storing the roving bobbin, which is accessible to the loading device or a portion thereof along a predetermined or pre-settable path, in particular a guiding device. Thus, the empty roving bobbin can be stored in the storage space and the loading device can be filled in an automated manner with the supplied roving bobbin. Alternatively, it is conceivable that the operator manually loads the loading device and removes the empty roving tube. However, the degree of automation can be increased if there is a corresponding storage space. The storage space may be a bobbin holder that houses at least one, but preferably a plurality of full roving tubes. The storage space can be directly adjacent to a rotary knitting machine or an adjacent area.

In addition, a transport device can be provided for loading the full roving tube into the storage space. In particular, the transport device can load the full roving tube into the storage space and from Remove empty roving tubes from storage space. A conveyor belt or conveyor belt can be provided as a transport device, for example for roving tubes to be suspended and transported thereon. For example, the conveyor belt can travel through the storage space in a loop.

The guiding device encloses at least one rotary knitting machine in at least a plurality of sections on the periphery. It is thus achieved that a loading device is moved along the rotary knitting machine to a drafting device. Preferably, the guiding means preferably completely encloses the rotary knitting machine such that a loading device or a plurality of loading devices can travel around the rotary knitting machine.

In particular, a plurality of loading devices are provided, each associated with at least one drafting device of the rotary knitting machine. In particular, a loading device can be associated with only one of the drafting devices of a rotary knitting machine. Therefore, individual drafting devices can be reached more quickly by a loading device. Each loading device can specify its own storage space. Faster bobbin replacement is also possible. For example, a loading unit can be responsible for half or a quarter of the bobbin holder or drafting device around the rotary knitting machine.

Furthermore, it is envisaged that a plurality of rotary knitting machines are enclosed by a plurality of sections of the guiding device at least on its periphery. Therefore, a plurality of rotary knitting machines can be loaded in an automatic manner.

At least two loading devices are provided, and one of the loading devices can be configured to form a transfer roving bobbin to another loading device. Therefore, a roving tube can quickly reach where it is needed. Furthermore, less storage space is used.

A plurality of rotary knitting machines may each designate at least one guiding device and the loading device may constitute a loading device for transferring the roving bobbin from the loading device of the first guiding device to the second guiding device. Therefore, it is not necessary to specify each knitting machine Its own storage space. The roving bobbin can be transferred not only by the loading device to a drafting device, but also to another loading device, which in turn loads the rotary knitting machine. The empty roving tube can of course also be transferred so that it can be transported to a storage space.

It is particularly advantageous if the card sensor of one of the rotary knitting machines is coupled to the control device of the loading device via a signal transmission technique. Thus, on the one hand, when a roving tube is used, the signal can be transmitted to a control device. In addition, when a defect is detected and the loading device is to take action, the signal can be transmitted to the control device. Furthermore, when the end of the roving has been penetrated, it can be detected by the card sensor and the knitting process can be continued. In this case, a consistent energy signal can be transmitted to the control device.

The invention also encompasses a rotary knitting machine having a loading device according to the invention. This rotary knitting machine can operate more efficiently.

The invention further comprises a method of loading a rotary knitting machine by means of a roving tube, wherein a roving end is fed by a machine to a carding sensor and/or a drafting device of the rotary knitting machine. After the end of the roving is fed, the rotary knitting machine can initiate a knitting process. The roving ends are preferably picked up by one of the loading devices and fed to the carding sensor and/or the drafting device of the rotary knitting machine.

According to one of the variations of the process, the card sensor can detect the end of a roving and emit a corresponding signal, and then a loading device or a portion thereof is automatically moved to the draft associated with the card sensor. Equipment, and exchange empty roving tubes into full roving tubes. Moreover, due to this process, the roving tube can be replaced in an automatic manner.

According to yet another development of this process, the loading device or part of the drafting device that is not used elsewhere or that can reach the carding sensor in the shortest distance can be moved to the drafting device. It can therefore be determined that the roving replacement can be extremely fast. Furthermore, after the roving tube is replaced, the end of the roving can be grasped by the crepe of the loading device and fed to the carding sensor and/or the drafting device of the rotary knitting machine. The result of this measure is that the knitting process continues in an automated manner. Operator intervention can be minimized.

If the drafting device starts to knit after the roving tube above it has been replaced, ie after the roving tube has been replaced by the loading device, the enabling action can be automated.

According to yet another variation of this process, the loading device can travel to the storage space, store empty roving tubes, and pick up full roving tubes.

Other features and advantages of the present invention will be apparent from the following description of the exemplary embodiments of the invention. The features shown in the figures are not to scale and are represented in a manner that clearly clarifies the features of the invention. Different features may be implemented in any suitable combination of individual or majority in the variants of the invention.

1,1’,1”,1’”‧‧·Rotary Knitting Machine

2‧‧‧Syringe

3a‧‧‧ hook

3b‧‧‧ pivot needle latch

3c‧‧‧blade

4‧‧‧Knitting system

5‧‧‧Cam assembly

6‧‧‧Fiber material

7‧‧‧ roving tube

8‧‧‧ Guide wheel

9‧‧‧Drawing equipment

10‧‧‧Transportation device

11‧‧‧Rotating components

12‧‧‧Transportation tube

14‧‧‧Yarn guides

14a‧‧‧Yarn guide hole

15‧‧‧ combing sensor

20‧‧‧Control device

100‧‧‧Loading equipment

101‧‧‧Guide

102‧‧‧Loading device

103‧‧‧Loading device

104‧‧‧Loading device

105‧‧‧Storage space

106‧‧‧ storage space

107‧‧‧Transportation device

108‧‧‧Transportation device

201‧‧‧Guide

202‧‧‧Guide

203‧‧‧Guide

204‧‧‧Guide

205‧‧‧ storage space

206‧‧‧ storage space

207‧‧‧ storage space

208‧‧‧ storage space

209‧‧‧Loading device

210‧‧‧Loading device

211‧‧‧Loading device

212‧‧‧Loading device

301‧‧‧Loading device

302‧‧‧Loading device

303‧‧‧Guide

304‧‧‧ storage space

305‧‧‧Transportation device

401‧‧‧ storage space

402‧‧‧Guide

403‧‧‧Loading device

404‧‧‧Loading device

500‧‧‧Guide

501‧‧‧ storage space

502‧‧‧ storage space

503‧‧‧Loading device

504‧‧‧Loading device

505‧‧‧Loading device

506‧‧‧Loading device

I‧‧‧feed roller pair

II‧‧‧Intermediate wheel pair

III‧‧‧ Pulling roller pair

Exemplary embodiments of the invention are shown in the various stages of use in the schematic and are explained in detail in the following description.

Figure 1 is a partial schematic view of a rotary knitting machine; Figure 2 is a plan view of a rotary knitting machine having two associated storage spaces; Figure 3 discloses a rotary knitting machine having four associated loading units; Figure 4 discloses a rotary knitting machine having an associated storage space; Figure 5 discloses two rotary knitting machines that specify a common storage space; Figure 6 A device that reveals a large number of knitting machines and storage spaces.

Figure 1 shows a partial view of a rotary knitting machine 1 having a knitting tool holder, in particular a syringe 2, in which a standard knitting tool (for example, a knitting needle 3 constituting a crochet group) is detachably mounted therein. . The knitting needle 3 has a hook 3a, a pivoting needle latch 3b, and a blade 3c. It is moved by a cam assembly 5 (not shown in detail) to a fiber picking position suitable for picking up the fibrous material 6 or roving at a knitting position (hereinafter referred to as knitting system 4). The fibrous material 6 is fed from the roving bobbin 7 to the rotary knitting machine 1.

The fibrous material 6 (for example, in the form of a blister card) can be wound on the roving bobbin 7. The fibrous material 6 is fed to a drafting device 9 by a transport element (not shown) and a guide roller 8. Each of the knitting systems 4 is assigned its own drafting device 9, which is, for example, a plurality of pairs of drafting rollers, which are basically known. The exemplary embodiment relates to a three-roller drafting device 9, wherein one of the pair of pair of belt rollers forms a pre-drafting zone for one of the pair of roller pairs I and one of the pair of intermediate rollers, and a pair of pulling rollers forms a main Drafting area.

The fibrous material 6 from the drafting device 9 (which consists essentially of undrawn rayon disposed parallel to each other) is preferably fed to an associated knitting system by a spinning or transport device 10. The transport device 10 has a rotating structure And a spinning or transporting tube 12 connected thereto, the transporting tube end is located at a yarn guiding member 14, and the threaded guiding member is disposed in front of the knitting tool 3, so the fiber exiting from the yarn guiding hole 14a The material 6 is inserted into the hook 3a of the knitting tool 3, which is raised or raised by the cam assembly 5 at the fiber picking point to a fiber picking position. The fibrous material 6 is monitored by a card sensor 15. When a defect is detected, the knitting formation process is interrupted. The defect is removed from the fibrous material 6 and the knitting formation process continues.

Figure 2 schematically shows a rotary knitting machine 1 and a loading device 100 disposed adjacent thereto. The loading device 100 comprises a guiding device 101, shown in phantom, which is arranged in the vicinity of the periphery of the rotary knitting machine 1, in particular in the exemplary embodiment shown. The loading devices 102-104 can be moved along the guiding device 101. The loading devices 102-104 herein have a winder (not shown) adapted to remove (empty) roving tubes from the rotary knitting machine 1 and to load new (full) roving tubes 7. Furthermore, the winders of the loading devices 102-104 are adapted to grip the ends of a roving and simultaneously feed the card sensor 15 and the drafting device 9.

Figure 2 further discloses two storage spaces 105, 106 in which the roving bobbin 7 can be temporarily stored. The empty roving bobbin 7 can be stored here by means of loading devices 102-104. The full roving bobbin 7 is transported to the storage spaces 105, 106 by transport means 107, 108. Here, the loading devices 102-104 can take the full roving bobbin 7 into the storage member of one of the loading devices 102-104 and unload the empty roving bobbin 7 that has been stored in a storage member during the replacement of the roving bobbin.

The loading devices 102-104 can operate entirely along the guiding device 101 Around the knitting machine 1. However, it is conceivable that each of the loading devices 102-104 is assigned to a particular section of the knitting machine 1 and is therefore also assigned to a corresponding section of the guiding device 101.

In the exemplary embodiment of Fig. 3, the knitting machine 1 is divided into four regions. Therefore, the guiding devices 201-204 also extend only along a section near the periphery of the knitting machine 1. On the other hand, the periphery of the rotary knitting machine 1 is completely covered by the guiding means 201-204, so that a loading device 209-212 can reach the respective drafting devices. Each of the guiding devices 201-204 is sequentially assigned to its own storage space 205-208 and a loading device 209-212.

It is also conceivable to assign more than one loading device 209-212 to each of the guiding devices 201-204. In particular, a plurality of loading devices 209-212 can simultaneously run at least along a section around the rotary knitting machine 1.

In the embodiment according to Fig. 4 two loading devices 301, 302 are provided which are movable along a guiding device 303. Further, a storage space 304 is assigned to the knitting machine 1. In this case, the transport device 305 is also fully disposed within the storage space 304. The empty roving tube can be manually removed from the storage space 304 here.

Figure 5 shows how the two knitting machines 1, 1' can be operated using only a designated storage space 401. The storage space 401 is located between the knitting machines 1, 1'. The loading devices 403, 404 can be moved around the knitting machine 1, 1' by the guiding device 402 and moved to the storage space 401 to facilitate the exchange of empty roving tubes into the full roving tubes here. In the same as in the previous and subsequent embodiments, the loading devices 403, 404 can have a drive that can be controlled by a Device 20 is actuated as shown in FIG. Furthermore, one of the loading devices 403, 404 can also be actuated by the control device 20. Control device 20 may be a master control device that provides only operations for loading device 100. However, it is also conceivable to control the loading device 100 using a control device of a knitting machine 1, 1'. In particular, the control device 20 can receive signals from the card sensors 15 or from the respective card sensors 15 of the respective drafting devices, operating the loading device 100 in accordance with the signals from the carding sensor 15. In this case, the order of movement of the loading devices 403, 404 and individual operations can be controlled by software operating in the control device 20. The software of the loading device 100 can be directly coupled to the software of a rotary knitting machine 1, 1'. Thus, it can be adjusted which loading device 403, 404 must travel to which knit point when replacing the roving bobbin 7 or removing rough spots from the roving.

Fig. 6 discloses that a device as a whole comprises four rotary knitting machines 1, 1', 1", 1'". The figure shows a guiding device 500 disposed around the knitting machine 1, 1', 1", 1'". The device additionally has two storage spaces 501, 502. The loading devices 503-506 can be moved along the guiding device 500 and go to the drafting device of the knitting machine 1, 1', 1", 1'". In this case, the loading device is controlled such that the loading devices 503-506 that were not used elsewhere and that are at the shortest distance from the drafting device travel to a drafting device. The loading devices 503-506 can not only remove the full roving tube from the storage spaces 501, 502, but can also transfer the full roving tube to another loading device 503-506. Empty roving tubes can also be removed.

1‧‧‧Rotary Knitting Machine

100‧‧‧Loading equipment

101‧‧‧Guide

102‧‧‧Loading device

103‧‧‧Loading device

104‧‧‧Loading device

105‧‧‧Storage space

106‧‧‧ storage space

107‧‧‧Transportation device

108‧‧‧Transportation device

Claims (26)

A loading device (100) for a rotary knitting machine (1, 1', 1", 1'"), comprising loading devices (102-104, 209-212, 301, 403, 404, 503-506), wherein the loading device (102-104, 209- 212, 301, 403, 404, 503-506) at least a portion of which can be moved along at least one predetermined or pre-settable path and adapted to load the rotary knitting machine (1, 1 ', 1", 1'" with a full roving bobbin (7)) . The loading device of claim 1, wherein the guiding device (101, 201-204, 303, 402, 500) is provided and the loading device (102-104, 209-212, 301, 403, 404, 503-506) can be at least along the guiding device (101, 201-204, 303, 402, 500) The area is moved at the height of the drafting device (9) of the rotary knitting machine (1, 1', 1", 1'"). The loading device of claim 1, wherein the loading device (102-104, 209-212, 301, 403, 404, 503-506) has a winder. The loading device of claim 3, wherein the creping machine is adapted to exchange the roving bobbin (7) of the rotary knitting machine (1, 1', 1", 1'"). The loading device of claim 3, wherein the creping device is suitable for feeding a roving to a carding sensor (15) of the rotary knitting machine (1, 1 ', 1", 1'") And/or feeding to the drafting device (9). The loading device of claim 3, wherein the creping device is adapted to detect defects detected from the roving. The loading device of claim 1, wherein the loading device (102-104, 209-212, 301, 403, 404, 503-506) has a storage member for the full and/or empty roving bobbin (7). A loading device according to claim 2, wherein the drive is arranged to move the loading device (102-104, 209-212, 301, 403, 404, 503-506) or a portion thereof along the guiding device (101, 201-204, 303, 402, 500). The loading device of claim 1, wherein the control device (20) is arranged to control the loading device (102-104, 209-212, 301, 403, 404, 503-506). The loading device of claim 2, wherein a storage space (105, 106, 205-208, 304, 401, 501, 502) for storing the roving bobbin (7) is provided, the storage space being slidable by the loading device (102-104, 209-212, 301, 403, 404, 503-506) or A portion thereof is approached along the guiding device (101, 201-204, 303, 402, 500). A loading device according to claim 10, wherein the transport device (107, 108, 305) is arranged to load the full roving bobbin (7) into the storage space (105, 106, 205-208, 304, 401, 501, 502). The loading device of claim 2, wherein the guiding device (101, 201-204, 303, 402, 500) encloses at least one of the rotary knitting machines (1, 1 ', 1" in at least a plurality of sections on the periphery, 1'"). The loading device of claim 2, wherein a plurality of the loading devices are provided (102-104, 209-212, 301, 403, 404, 503- 506) each associated with at least one of the drafting devices (9) of the rotary knitting machine (1, 1', 1", 1'"). The loading device of claim 2, wherein the plurality of rotary knitting machines (1, 1 ', 1", 1'") are at least on the periphery thereof by the guiding device (101, 201-204, 303, 402, 500) Enclosed in multiple sections. The loading device of claim 1, wherein at least two loading devices (102-104, 209-212, 301, 403, 404, 503-506) are provided, and one of the loading devices (102-104, 209-212, 301, 403, 404, 503-506) constitutes a transfer. The roving bobbin (7) to another loading device (102-104, 209-212, 301, 403, 404, 503-506). The loading device of any one of claims 2 to 15, wherein a plurality of the rotary knitting machines (1, 1 ', 1", 1'") are each assigned to at least one of the guiding devices ( 101, 201-204, 303, 402, 500) and the loading device (102-104, 209-212, 301, 403, 404, 503-506) is configured to load the roving bobbin (7) from one of the first guiding devices (101, 201-204, 303, 402, 500) (102-104, 209-212, 301, 403, 404, 503- 506) Transfer device (102-104, 209-212, 301, 403, 404, 503-506) transferred to the second guiding device (101, 201-204, 303, 402, 500). The loading device of claim 9, wherein the carding sensor (15) of the rotary knitting machine (1, 1', 1", 1'") is coupled to the loading via a signal transmitting technique. The control device (20) of the device (100). A rotary knitting machine (1, 1', 1", 1'") having a loading device (100) according to any one of claims 1 to 17. A use of a loading device according to any one of claims 1 to 17 in a rotary knitting machine. A method of loading a rotary knitting machine (1, 1 ', 1", 1'") by a roving bobbin (7), wherein the end of the roving bobbin (7) is fed by a machine to the rotary knitting machine (1,1',1",1'") carding sensor (15) and/or drafting device (9). The method of claim 20, wherein the end of the roving bobbin (7) is gripped by a winder of the loading device (102-104, 209-212, 301, 403, 404, 503-506) and fed to the rotary knitting machine ( 1, 1 ', 1", 1'") of the card sensor (15) and/or the drafting device (9). The method of claim 20, wherein the card sensor (15) detects the end of the roving bobbin (7) and sends a corresponding signal, and then the loading device (102-104, 209-212, 301, 403, 404, 503-506) Or a portion thereof is moved in an automated manner to the drafting device (9) associated with the card sensor (15) and the empty roving tube is exchanged into a full roving tube. The method of claim 22, wherein the loading device (102- of the drafting device (9) associated with the card sensor (15) is not used elsewhere or can be reached at the shortest distance. 104, 209-212, 301, 403, 404, 503-506) or a portion thereof is moved to the drafting device (9). The method of claim 21, wherein after the roving bobbin (7) is replaced, the end of the roving bobbin (7) is grasped by the gripper of the loading device (102-104, 209-212, 301, 403, 404, 503-506) The card sensor (15) and/or the drafting device (9) of the rotary knitting machine (1, 1 ', 1", 1'") are fed and fed. The method of claim 20, wherein the roving tube (7) above the drafting device (9) is replaced by the loading device (102-104, 209- 212, 301, 403, 404, 503-506) Knitting after replacement. The method of claim 20, wherein the loading device (102-104, 209-212, 301, 403, 404, 503-506) travels to a storage space (105, 106, 205-208, 304, 401, 501, 502), stores an empty roving bobbin (7), and picks up a full roving bobbin (7). ).