Weft color selecting device

Abstract

The utility model belongs to the technical field of textile machinery, and particularly relates to a weft color selecting device. The device comprises a support which is fixed at the top end of a shooting-in side wall plate of the gripper shuttle loom; the motor is fixed on the top surface of the bracket; the driving wheel is arranged on an output shaft of the motor; the driven wheel is arranged on the side face of the support, and the driven wheel is meshed with the driving wheel; one end of the swing arm connecting rod is arranged on a rotating shaft of the driven wheel in a sleeving manner; one end of the damper is hinged to the other end of the swing arm connecting rod; the weft selector is fixed on an eccentric wheel of the eccentric shaft, and the eccentric wheel is hinged with the other end of the damper; and the controller is electrically connected with the motor. The gripper shuttle loom is used for solving the technical problems that in the prior art, a common gripper shuttle loom cannot automatically replace wefts, and the number of the wefts is difficult to accurately control.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile machinery, and in particular relates to a weft color selection device. Background Art

[0002] Textile fabrics include warp and weft. Generally, the weft can be one color or multiple colors, which can be customized according to customer needs. However, taking ordinary projectile looms for weaving fabrics as an example, when ordinary projectile looms change the color of the weft (i.e., replace the wefts of different colors), their weft mixing devices are mechanical linkage devices, and the weft mixing devices need to be manually operated, resulting in the inability to accurately control the number of wefts woven into the textile fabric, which easily leads to the mismatch between the number of wefts and the designed number, affecting the quality of the textile fabric. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a weft color selection device for solving the technical problems in the prior art that ordinary shuttle looms cannot automatically change wefts and are difficult to accurately control the number of wefts.

[0004] The utility model solves the above technical problems with the following technical solutions: A weft color selection device for a projectile loom, comprising:

[0005] A bracket, wherein the bracket is fixed to the top of a picking side wall plate of the projectile loom;

[0006] A motor, wherein the motor is fixed on the top surface of the bracket;

[0007] A driving wheel, the driving wheel is arranged on the output shaft of the motor;

[0008] A driven wheel, the driven wheel is arranged on a side of the bracket, and the driven wheel is meshed with the driving wheel;

[0009] A swing arm connecting rod, one end of which is sleeved on the rotating shaft of the driven wheel;

[0010] A damper, one end of which is hinged to the other end of the swing arm connecting rod;

[0011] A weft selector, the weft selector is fixed on the eccentric wheel of the eccentric shaft, and the eccentric wheel is hinged to the other end of the damper;

[0012] A controller is electrically connected to the motor.

[0013] The utility model transmits the transmission through a series of transmission parts such as a motor, and finally realizes changing the posture of the weft selector. Since the weft selector has at least two grooves for guiding the shuttle, the grooves can guide the shuttle with different colored wefts to enter the shuttle mouth at the right time, thereby completing the selection of the weft color.

[0014] Furthermore: the driving wheel is a nylon wheel, and a magnetic sheet is embedded on the side of the driving wheel;

[0015] A sensor bracket is also provided on the side of the bracket, and a counting sensor is provided on the sensor bracket. The counting sensor points to the magnetic sheet, and the counting sensor is located in a sector area of ​​215° to 230° of the driving wheel;

[0016] The counting sensor is electrically connected to the controller.

[0017] The beneficial effect of adopting this step is that the counting sensor can count the number of weft threads in the woven cloth. When the weft threads of one color have completed the weaving of the set number of weft threads, the weft threads of another color can be replaced for weaving.

[0018] Furthermore: the driving wheel has 24 teeth, and the driven wheel has 48 teeth.

[0019] The beneficial effects of adopting this step are: the driven wheel and the driving wheel can mesh, which means that the modules of the two are the same, then the driven wheel has more teeth than the driving wheel, which means that the diameter of the driven wheel is larger, and then the rotation angle of the driving wheel is larger than the rotation angle of the driven wheel, and the rotation angle range of the driven wheel is smaller, which can more accurately control the rotation accuracy.

[0020] Furthermore: a positioning sensor is also provided on the bracket, the positioning sensor points to the driving wheel, and a positioning mark is provided on the driving wheel.

[0021] The beneficial effect of adopting this step is: by adjusting the position of the bracket, the moving range of the bracket and the swing arm connecting rod is matched with the stroke of the eccentric wheel driving the weft selector, and then the positioning sensor is used to monitor the position of the driving wheel to avoid the deviation of the position of the driving wheel due to the inability to know, thereby ensuring the normal operation of the weft selection device.

[0022] Furthermore: the mounting hole of the bracket is a waist-shaped hole.

[0023] The beneficial effect of adopting this step is that the waist-shaped hole is used to facilitate the adjustment of the position of the bracket so that the swing amplitude of the swing arm connecting rod is adapted to the rotation stroke of the eccentric wheel.

[0024] Furthermore: the controller is also provided with a synchronous rotation sensor, and the synchronous rotation sensor is arranged on the transmission part of the gripper loom.

[0025] The beneficial effect of adopting this step is that the motor drives the weft selector to work in coordination with the projectile loom through the synchronous rotation sensor.

[0026] The beneficial effects of the utility model are:

[0027] By setting the number of weft threads of different colors in the controller, the weft selector can replace weft threads of different colors at an appropriate time, thus realizing automatic counting and replacement of weft threads. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a front view of a weft color selection device provided by the utility model;

[0030] Figure 2 for Figure 1 Side view of

[0031] Figure 3 for Figure 1 Top view of the .

[0032] Reference numerals:

[0033] 1- bracket; 2- motor; 3- driving wheel; 4- driven wheel; 5- swing arm connecting rod; 6- damper; 7- eccentric shaft; 8- weft selector; 9- sensor bracket; 10- shuttle picking side wall plate;

[0034] 11-positioning sensor; 12-waist-shaped hole; 91-counting sensor. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0036] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] Example

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a weft color selection device for a projectile loom, specifically used in a weft mixing device of the projectile loom, comprising:

[0043] A bracket 1, wherein the bracket 1 is fixed to the top of a picking side wall plate 10 of the gripper loom;

[0044] Motor 2, the motor 2 is fixed on the top surface of the bracket 1. In this application, in order to improve the control accuracy, the motor 2 can be a servo motor;

[0045] A driving wheel 3, wherein the driving wheel 3 is arranged on the output shaft of the motor 2;

[0046] A driven wheel 4, the driven wheel 4 is arranged on the side of the bracket 1, and the driven wheel 4 is meshed with the driving wheel 3;

[0047] A swing arm connecting rod 5, one end of which is sleeved on the rotating shaft of the driven wheel 4;

[0048] A damper 6, one end of which is hinged to the other end of the swing arm connecting rod 5;

[0049] A weft selector 8, wherein the weft selector 8 is fixed on the eccentric wheel of the eccentric shaft 7, and the eccentric wheel is hinged to the other end of the damper 6;

[0050] The controller is electrically connected to the motor 2. The controller itself has no structural relationship with the above-mentioned parts, but only an electronic control relationship. The controller controls the forward rotation, reverse rotation, reset and rotation number of the motor 2, and can be controlled by a control system such as a single-chip microcomputer. The specific parameter collection can be combined with the various sensors below. When necessary, the controller can also be connected to the human-computer interaction system for easy control (the above-mentioned technical solution for the controller belongs to the existing technology well known to those skilled in the art and will not be repeated here).

[0051] It should be noted that the device mentioned in the present application needs to remove the connecting rod and the swing arm in the original weft mixing device before use, and the above-mentioned damper 6, eccentric shaft 7 and weft selector 8 are parts in the original weft mixing device, wherein the connecting rod controls the swing arm, and the swing arm is hinged to the damper 6; the damper 6 after the original connection relationship is removed is hinged to the swing arm connecting rod 5, and the forward and backward movement of the damper 6 is driven by the swing arm connecting rod 5; it can be seen that the utility model actually changes the mechanical structure linkage mode of the weft mixing device of the original shuttle loom into an electric control mode, and drives the driving wheel 3 to swing forward / reversely by a certain amplitude through the motor 2, and drives a series of transmission parts such as the driven wheel 4 to transmit, and finally realizes the change of the posture of the weft selector 8. Since the weft selector 8 has at least two grooves for guiding the shuttle, this groove can guide the shuttle with different colors of weft threads to enter the shuttle mouth at the right time, thereby completing the selection of the weft thread color.

[0052] On the basis of the above technical solution, the driving wheel 3 is a nylon wheel, and a magnetic sheet is also embedded on the side of the driving wheel 3;

[0053] A sensor bracket 9 is also provided on the side of the bracket 1, and a counting sensor 91 is provided on the sensor bracket 9. The counting sensor 91 points to the magnetic sheet, and the counting sensor 91 is located in the 215° to 230° sector area of ​​the driving wheel 3;

[0054] The counting sensor 9 is electrically connected to the controller.

[0055] The driving wheel 3 is driven by the motor 2 to swing forward / reverse several times. When the counting sensor 91 is aligned with the magnetic sheet, it can send an electrical signal to the controller to measure the number of weft threads in the woven cloth. When the weft threads of one color have completed the weaving of the set number of weft threads, the weft threads of another color can be replaced for weaving.

[0056] On the basis of the above technical solution, the driving wheel 3 has 24 teeth, and the driven wheel 4 has 48 teeth.

[0057] The driven wheel 4 and the driving wheel 3 can mesh, which means that their modules are the same. Then the driven wheel 4 has more teeth than the driving wheel 3, which means that the diameter of the driven wheel 4 is larger. Then the rotation angle of the driving wheel 3 is larger than the rotation angle of the driven wheel 4, and the rotation angle range of the driven wheel 4 is smaller, so the rotation accuracy can be controlled more accurately.

[0058] On the basis of the above technical solution, a positioning sensor 11 is further provided on the bracket 1, and the positioning sensor 11 points to the driving wheel 3. A positioning mark is provided on the driving wheel 3. The specific positioning sensor 11 can be an electromagnetic sensor or a photoelectric sensor. The positioning mark can be selected according to the type of the positioning sensor 11. If it is an electromagnetic sensor, the positioning mark is a metal material. If it is a photoelectric sensor, the positioning mark is a notch of a different color from the driving wheel 3, etc.

[0059] By adjusting the position of the bracket 1, the moving range of the bracket 1 and the swing arm connecting rod 5 is matched with the stroke of the eccentric wheel driving the weft selector 8, and then the positioning sensor 11 is used to monitor the position of the driving wheel 3 to avoid the position deviation of the driving wheel 3 and ensure the normal operation of the weft selection device.

[0060] On the basis of the above technical solution, the mounting hole of the bracket 1 is a waist-shaped hole 12 .

[0061] The waist-shaped hole 12 is for facilitating the adjustment of the position of the bracket 1 so that the swing amplitude of the swing arm connecting rod 5 is adapted to the rotation stroke of the eccentric wheel.

[0062] On the basis of the above technical solution, the controller is further provided with a synchronous rotation sensor, and the synchronous rotation sensor is arranged on the transmission part of the gripper loom.

[0063] The motor 2 drives the weft selector 8 to work in coordination with the gripper loom by means of the synchronously rotating sensor.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A weft color selection device for a projectile loom, characterized in that: include: A bracket, wherein the bracket is fixed to the top of a picking side wall plate of the projectile loom; A motor, wherein the motor is fixed on the top surface of the bracket; A driving wheel, the driving wheel is arranged on the output shaft of the motor; A driven wheel, the driven wheel is arranged on a side of the bracket, and the driven wheel is meshed with the driving wheel; A swing arm connecting rod, one end of which is sleeved on the rotating shaft of the driven wheel; A damper, one end of which is hinged to the other end of the swing arm connecting rod; A weft selector, the weft selector is fixed on the eccentric wheel of the eccentric shaft, and the eccentric wheel is hinged to the other end of the damper; A controller is electrically connected to the motor.

2. The weft color selection device according to claim 1, characterized in that: The driving wheel is a nylon wheel, and a magnetic sheet is embedded on the side of the driving wheel; A sensor bracket is also provided on the side of the bracket, and a counting sensor is provided on the sensor bracket. The counting sensor points to the magnetic sheet, and the counting sensor is located in a sector area of ​​215° to 230° of the driving wheel; The counting sensor is electrically connected to the controller.

3. The weft color selection device according to claim 2, characterized in that: The driving wheel has 24 teeth, and the driven wheel has 48 teeth.

4. The weft color selection device according to claim 3, characterized in that: The bracket is also provided with a positioning sensor, the positioning sensor points to the driving wheel, and the driving wheel is provided with a positioning mark.

5. The weft color selection device according to claim 4, characterized in that: The mounting hole of the bracket is a waist-shaped hole.

6. The weft color selection device according to claim 5, characterized in that: The controller is also provided with a synchronous rotation sensor, and the synchronous rotation sensor is arranged on the weft mixing device of the gripper loom.

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