JPH066475U - Knitting machine needle selecting device and its finger and its fin gas topper - Google Patents

Abstract

(57) [Summary] [Structure] In a piezoelectric needle selecting device for selecting knitting needles of a knitting machine, a finger 10 of the needle is inserted from a central portion of a mounting portion 101 with a finger operating portion. A narrow width 102 is formed up to the center of the contact portion 100 that contacts the finger butt, and the finger gas topper 12 is configured so as to make a single contact.
No. 2 is combined with one stopper body 12A in which one fin gas topper opening portion 120 is formed and the other stopper body 12B made of a material different from that of the one stopper body. [Effect] The finger is lighter in weight, the needle selection operation is significantly speeded up, oil adhesion is reduced, thermal distortion (deformation) is reduced, uneven contact with the fin gas topper is prevented, and the pattern is reduced. Even if it is possible to eliminate mistakes and to apply a large finger load such as a high-speed knitting machine, it is possible to prevent abrasion of the side wall of the fin gas topper, which is effective in terms of durability and long life. In comparison, the number of stages can be reduced and the device can be downsized.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a needle selecting device for a knitting machine, which is used for selecting a knitting needle of a knitting machine, a finger thereof, and a fin gas topper thereof, and more particularly, to select a knitting needle of a knitting machine by utilizing a bending motion by a piezoelectric phenomenon. The present invention relates to an improved technique of a finger and a finger gas topper of a needle selecting device for a piezoelectric knitting machine that can perform needle operation.

[0002]

[Prior art]

 In a sock circular knitting machine, a jack with a finger butt is fitted into a large number of grooves on the outer circumference of the knitting machine cylinder so that the knitting needle moves up and down. The needle of the knitting machine needle attached around the needle is selectively pushed to select the knitting needle of the circular knitting machine.

An example of the needle selecting operation of the knitting needle of the knitting machine will be described with reference to FIG. 8. In the needle selecting device for the knitting machine, the piezoelectric body 3 in which the piezoelectric elements 2 are attached to both surfaces of the metal plate 1 is used. A finger 4 is attached to an end portion of the piezoelectric element 3, and a pulse is applied to the piezoelectric element 2 of the piezoelectric body 3 from a controller (electronic patterning control device) (not shown) through a lead wire R. That is, to explain an example of the needle selection operation, FIG. 8A shows a state where no pulse is applied to the piezoelectric element 2 of the piezoelectric body 3, and FIG. 8B shows the piezoelectric element 3 of the piezoelectric body 3. A state where a pulse is applied to the element 2 and the piezoelectric body 3 is curved is shown. In the state of FIG. 8 (A), the finger butt 6 of the jack 5 (or the knitting needle itself) comes into contact with the tip of the finger 4 and pushes the jack 5 to the right. As a result, the raising cam butt 7 at the lower end of the jack 5 cannot be engaged with the raising cam 8, and as a result, the knitting needle (not shown) that abuts above the jack 5 according to the jack 5, Does not move upward, and as a result, no stitch is formed by this knitting needle. On the other hand, in the state of FIG. 8B, since the piezoelectric body 3 is curved and the finger 4 does not enter the movement trajectory of the finger butt 6 of the jack 5, the jack 5 keeps the vertical position, and as a result, the jack 5 is raised. The cam butt 6 is engaged with the raising cam 8 to push the jack 5 upward, and the knitting needle abutting above the jack 5 is given a knitting operation. Note that FIG. 8C shows a perspective view of the jack 5.

Along with the bending movement of the plate 1 by the piezoelectric element 2 as described above, the engagement with the butt (finger butt) 6 of the knitting needle or the needle selection jack arranged in contact with the lower end of the knitting needle. FIG. 6 (A) shows a conventional example of the finger 4 for forming or releasing the union. In the finger 4, as shown in FIG. 6 (A), a through hole 40 is provided. By providing such through holes 40, the weight of the fingers 4 is reduced, and the response speed in the needle selecting operation of the fingers 4 is further improved as compared with the conventional example in which the through holes 40 are not provided. Can be improved. On the other hand, in the needle selecting device, a fin gas topper is provided to fulfill the stopper function of the finger. FIG. 6B shows a fin gas topper 9 for the finger 4. The finger gas topper 9 has two finger stopper openings 9A and 9B on both sides of the central opening corresponding to the fingers 4. That is, the finger 4 is divided into the portions 41 and 42 on both sides of the through hole 40 as a boundary, and therefore, the opening portion 9A for the fin gas topper for one portion 41 and the other portion are formed. And a fin gas topper opening portion 19B for 42. The fingers 4 are housed in the finger gas topper 9 in a plurality of stages and perform the needle selection operation as described above. FIG. 6 (B) shows an example of 10 stages, and the fingers 4 are housed in each stage. Here, the stopper operation of the finger gas topper 9 of the finger 4 will be described. Since the finger 4 is divided into the side portions 41 and 42, the two portions 41 and 42 of the finger gas topper 9 are used for the aforementioned operation. The openings 9A and 9B come into contact with the inner walls of the openings 9A and 9B to be stoppered. Further, since the tip end portion of the jack 5 that contacts the finger butt 6 is inclined, in FIG. 6 (B), when the contact with the pad 6 is performed, the jack 5 is pressed as illustrated by an arrow mark. The inner side of the fin gas topper opening 9A is stoppered.

However, when the through hole 40 is formed in the finger 4 as described above, the portions 41 and 42 on both sides of the through hole 40 are deformed due to the metal heat treatment in the manufacturing process of the finger 4. (Thermal strain), twisting does not occur and they are not parallel (the degree of inclination is different), and in the needle selection operation, for example, as shown in FIG. 7 (A), the finger 4 causes the metal fin gas topper 9 to move. It is a one-sided hit inside. When observing the electronic waveform of the movement of the finger 4 at that time, the waveform is disturbed due to the above, and it affects the handle of the sock. Further, in the finger 4, as described above, the load is applied when the finger 4 is brought into contact with the jack 5, the fin gas topper side wall 9A is abraded and a step is formed on the side surface as shown in FIG. 4 (C). As a result, the fingers 4 may not be able to move upward, which may hinder a smooth needle selection operation. Therefore, in order to prevent the wear of the fin gas topper 9, it is conceivable that the fin gas topper 9 is made of a hard material that has been subjected to quenching treatment. However, the finger 4 made of a hard material such as a metal is used. In combination with the fin gas topper 9 made of hardened steel material, when the finger 4 comes into contact with the inner walls 9A, 9B of the fin gas topper openings as shown in FIG. 7 (C). It is easy to bounce, which also hinders a smooth needle selection operation. The inventor of the present invention examined the use of the fin gas topper 9 shown in FIG. 6 (B), in which the entire half is hardened, and only one half of which needs to be prevented from wear is hardened. However, in that case, although it prevented wear, it did not eliminate the above-mentioned bound phenomenon. In particular, recently, the speed of the needle selection device has increased, the speed of the knitting machine has increased, and the number of revolutions of the cylinder has significantly increased.Therefore, the degree of wear of the finger and the fin gas topper has become remarkable. Has become.

[0006]

[Problems to be solved by the device]

 An object of the present invention is to provide a technique capable of solving the drawbacks of the conventional technique. Other objects and novel features of the present invention will be apparent from the entire description of the present specification and the accompanying drawings.

[0007]

[Means for Solving the Problems]

 The present invention for achieving such an object provides a finger of a needle selecting device for a knitting machine for selecting a knitting needle of a knitting machine, wherein the finger is a knitting needle or A knitting machine characterized in that it is configured to have a narrow width toward a central portion of a contact portion of a jack under the knitting needle, which abuts with a finger butt, and is configured to make a single contact with the fin gas topper portion. A finger of a needle selecting device and a fin gas topper of a needle selecting device for a knitting machine for selecting knitting needles of a knitting machine, wherein the fin gas topper has one fin gas topper opening. A finger stopper of a needle selecting device for a knitting machine, characterized by comprising one stopper body and the other stopper body made of a material different from that of the one stopper body, and A needle selecting device for a knitting machine, comprising a finger and the finger gas topper, wherein the needle selecting device for a knitting machine has a piezoelectric body as a finger operating part, and The feature is that it is a needle selection device for a knitting machine that applies a voltage to the piezoelectric element to select the knitting needles of the knitting machine.

[0008]

[Action]

 According to the above means, the finger has a narrow width from the central portion of the attachment portion to the finger operation portion (piezoelectric body) to the central portion of the contact portion that abuts the knitting needle or the finger butt of the jack below the knitting needle. In addition, the fin gas topper is configured so as to be in single contact with the fin gas topper, so that the fin gas topper is divided into parts on both sides of the conventional through hole as a boundary, and two fins are provided corresponding to the finger. Unlike the one in which the opening portion for the inger stopper is opened, one opening portion for the fin gas topper is sufficient, and one stopper body in which the one opening portion for the fin gas topper is opened is It can be composed of a soft material that has not been subjected to a quenching treatment in consideration of the bounce phenomenon, while the other stopper body is hard like a quenching treatment that considers wear prevention. Will be able to consist of the quality, therefore Fuingasuto wrapper, as well as possible to prevent the bouncing phenomenon, wear can be prevented, and improved durability, can be of long life. In addition, the weighter is lighter, and the needle selection operation is speeded up significantly as compared with the conventional type, and this finger is configured so as to make a single contact with the fin gas topper. The occurrence of thermal strain (deformation), twisting, etc., which occurs when two parts on both sides of the through hole are provided as a boundary, is reduced. It is possible to prevent this from happening, and the electronic waveform becomes normal, so that it is possible to avoid the effect on the sock pattern that is seen in the disturbance of the electronic waveform (elimination of the pattern mistake). In addition, since the surface area of the fin gas topper that contacts is reduced, it is possible to prevent the phenomenon that the conventional finger adheres to the fin gas topper while being in contact with the conventional finger. Furthermore, even when the knitting machine speeds up and a large load is applied to the finger, the sidewall of the fin gas topper can be prevented from being worn, and the pressing pressure increases due to the high-speed rotation of the knitting machine. It can also be used to prevent wear. Furthermore, since the needle selection speed is improved due to the lighter weight of the finger, for example, a finger and a finger gas topper having 12 steps are conventionally required, while a finger having a step number of 8 is used. A fine gas topper corresponding to it was sufficient, and the number of drive circuit boards in the control for operating the finger was reduced, and the needle selection device was further miniaturized.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 (A) is a plan view of a finger according to the present invention, and FIG. 1 (B) is a block diagram of a finger gas topper according to the present invention. As shown in FIGS. 1 (A) and 1 (B), a finger 10 according to the present invention has a narrow width from a mounting portion 100 to which a piezoelectric body 3 is attached to an abutting portion 101 that abuts a finger butt 6 of a jack 5. In addition to being configured, it is configured to be in single contact with the fin gas topper. In the present invention, the narrow width portion 102 of the finger 10 is formed from the central portion of the attachment portion 100 with the piezoelectric body 3 to the central portion of the contact portion 101 that abuts the finger butt 6 of the jack 5. That is important. That is, the inventors of the present invention constructed a finger 11 as shown in FIG. 3 in the process of completion of the present invention, and tried to use the finger 11 which has the narrowed portion 110 not in the center but biased to one side. It was found that the same problem as described above occurs due to the inclination of the finger 11. Therefore, in the present invention, it is important that even if it is configured to have a narrow width and is configured to be in direct contact with the fin gas topper, it is in contact with the fin gas topper at the center position thereof. If they come into contact with each other at the center and at one place, they will not come into contact with each other.

FIG. 1B is a block diagram of a fin gas topper according to the present invention. The fin gas topper 12 is divided into two, one stopper body 12A in which one fin gas topper opening 120 is opened, and the other stopper body made of a material different from that of the one stopper body 12A. 12B in combination. One stopper body 12A is made of mild steel in which a fin gas topper opening portion 120 having a size and a width corresponding to the finger 10 is bored and the metal material is not quenched. The other stopper body 12B is made of steel that has a quadrilateral shape and is hardened to a metal material. One stopper body 12A is formed by connecting the other stopper body 12B at the end of the fin gas topper opening 120. The finger 10 is stoppered by the inner wall of the ceiling of the opening 120 for the fine gas topper and the inner wall of the bottom facing the inner wall. Since these inner walls are made of mild steel that has not been quenched, bounce is suppressed. When the finger 10 is pressed in the direction of the other stopper body 12B having a quadrilateral shape, the other stopper body 12B has been subjected to quenching treatment, so that the other stopper body 12B. Wear is prevented.

FIG. 4 shows an example of applying the present invention to a piezoelectric needle selecting device for a knitting machine. FIG. 4A is a perspective view thereof, and FIG. 4B is a central sectional view thereof. The knitting needle selecting device of the knitting machine has a spherical body 13 attached to the rear end portion 3A of the piezoelectric body 3 in which the piezoelectric element 2 is attached to the metal plate 1, and the rear end portion 3A of the support body 14 is attached. The spherical body 13 similar to the above is attached to the tip portion 3B of the piezoelectric body 3 by being inserted into the groove portion 140, the spherical body 13 and the attachment portion 100 of the piezoelectric body of the fin 10 are connected, and the butt of the finger 10 is connected. The contact portion 101 with 16 is projected from the opening portion 120 of the fin gas stopper portion 12 which is erected at a position separated from the finger fixing portion 15, and the middle portion between the rear end portion 3A and the front end portion 3B of the piezoelectric body 3 is formed. The position is fixed to the rotating body 17 attached to the fulcrum 16 on the way of the supporting body 14. A hole is formed in the end portion of the finger 10 where the finger 10 is attached to the piezoelectric body 3, and a hole is formed in the left and right end walls of the finger fixing portion 15 of the support body 14. Has been done. As shown in FIGS. 2 and 4 (B), the shaft is passed through the hole of the finger 10, both ends of the shaft are inserted into the holes on the left and right side walls, and screws 103 and 103 are inserted from both ends of the shaft. The finger 10 is fixed to the finger fixing portion 15. The above-described needle selecting device shown in FIG. 4 has been previously proposed by the present inventors (Japanese Patent Application No. 63-249967), and as shown in the figure, the rear end portion 3A of the piezoelectric body 3 has a spherical body. 13 is attached, and the spherical portion of the spherical body 13 can rotate within the groove portion 140 of the support body 14. Therefore, when the piezoelectric body 3 bends, the rear end portion 3A of the piezoelectric body 3 follows the groove portion 140. In addition, a spherical body 13 similar to the above is attached to the tip end portion 3B of the piezoelectric body 3, and the spherical body 13 is attached in the attachment portion 100 with the piezoelectric body of the finger 10. Since the piezoelectric body 3 can be rotated, the tip portion 3B of the piezoelectric body 3 can be moved during the bending movement of the piezoelectric body 3. Further, the middle positions of the rear end portion 3A and the front end portion 3B of the piezoelectric body 3 are fixed to the rotating body 17 attached to the midway fulcrum portion 16 so that the midway fulcrum is provided so that the movement of the piezoelectric body 3 is not disturbed. Has become.

According to such a needle selection device, as described above, the rear end portion 3A and the front end portion 3B of the piezoelectric body 3 can move following the bending motion of the piezoelectric body 3, respectively. Does not hinder the bending motion of the piezoelectric body 3 and the intermediate position between the rear end portion 3A and the front end portion 3B of the piezoelectric body 3 is fixed to the rotatable rotating body 17 to prevent the rotating body 17 from rotating. Since the bending movement of the piezoelectric body 3 is not hindered and the fulcrum is provided on the way, it is possible to obtain a needle selecting device with a remarkably faster needle selecting speed than the conventional needle selecting device. Since the torque of the finger 10 increases, the applied voltage can be low, and the life of the piezoelectric element 2 can be extended. Further, since the finger 10 is connected to the tip of the plate 1 of the piezoelectric body 3 so as to be aligned with the piezoelectric body 3, it is possible to make the needle selecting device extremely compact.

FIG. 5 shows an example in which the present invention is applied to an electromagnetic needle selection device. The electromagnetic needle selecting device is a system in which a coil 19 is wound around an iron core 18, N poles 20 and S poles 21 are arranged, a stopper 12 is provided, and a finger 10 is excited to operate a finger 10. belongs to. Although the present invention can be applied to the finger, the electromagnetic needle selection device may generate heat when operated at a high speed, or the needle selection speed may be slower than that of the piezoelectric type. .

Although the invention made by the present inventor has been specifically described based on the embodiment, the invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention. Needless to say. INDUSTRIAL APPLICABILITY The present invention can be applied to various knitting machines in addition to a sock circular knitting machine, and can also be applied to a scooping-type finger, a flat knitting machine, and the like.

[0015]

[Effect of device]

 As described above, the present invention has the following effects. (1) The fin gas topper can prevent the bounce phenomenon as well as wear, improve the durability, and have a long life. (2) The finger is lightened, and the needle selection operation is significantly speeded up. (3) Since the surface area that contacts the fin gas topper is reduced, it is possible to prevent the phenomenon that the conventional finger adheres to the fin gas topper while contacting with the oil. (4) It is possible to reduce the occurrence of thermal strain (deformation), twisting, etc., which occurs when the conventional through hole is provided and the parts on both sides of the through hole are provided as boundaries. One-sided contact with the fin gas topper is prevented. (5) Pattern mistakes can be eliminated. (6) Even if a high-speed or ultra-high-speed knitting machine applies a large finger load, it is possible to prevent wear of the side wall of the fin gas topper. Therefore, for example, in a high-speed pattern knitting machine equipped with a piezoelectric needle selecting device. Is extremely effective in terms of durability and long life. (7) In the past, a large number of fingers, for example, 12 stages, and the associated openings of the fin gas topper were required, but in the present invention, a finger having a smaller number of stages, for example, 8 stages, and It is now possible to reduce the number of drive circuit boards in the control that operates the finger, and succeed in further miniaturizing the needle selection device.

[Brief description of drawings]

FIG. 1A is a plan view of a finger showing an embodiment of the present invention, FIG. 1B is a configuration diagram of a fin gas topper section,

FIG. 2 is a perspective view of a finger showing an embodiment of the present invention,

FIG. 3 is a block diagram of a finger proposed in the completion process of the present invention,

FIG. 4A is a perspective view of a needle selection device showing an embodiment of the present invention, and FIG. 4B is a sectional view of the device.

FIG. 5 is a perspective view of a needle selection device showing another embodiment of the present invention,

FIG. 6A is a plan view of a conventional finger, and FIG. 6B is a configuration diagram of a conventional fin gas topper section.

7 (A) to 7 (C) are operation explanatory views of fingers of a conventional example,

8A and 8B are explanatory views of the operation of a finger, respectively, and FIG. 8C is a perspective view of a jack.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Plate 2 ... Piezoelectric element 3 ... Piezoelectric body 5 ... Jack 6 ... Butt 10 ... Finger 100 ... Attachment part with a finger operation part (piezoelectric body) 101 ... -Abutting portion that comes into contact with the butt for fingers 12 ... Finger gas topper 12A ... One stopper body 12B ... Other stopper body 120 ... Fine gas topper hole portion

Claims (4)

[Scope of utility model registration request] 1. A finger of a needle selecting device for a knitting machine for selecting a knitting needle of a knitting machine, wherein the finger is a knitting needle or a jack below the knitting needle from a central portion of an attachment portion to a finger operating portion. The needle of the knitting machine needle selecting device is characterized in that it is configured to have a narrow width toward the central portion of the contact portion that abuts against the finger butt, and is configured to make a single contact with the fin gas topper portion. . 2. A fin gas topper of a knitting machine needle selecting device for selecting knitting needles of a knitting machine, wherein the fin gas topper has one stopper in which one fin gas topper opening is formed. A fin gas topper for a needle selecting device for a knitting machine, comprising a body and a stopper body made of a material different from that of the one stopper body. 3. A needle selecting device for a knitting machine, comprising the finger according to claim 1 and the fin gas topper according to claim 2. 4. A knitting machine needle selecting device for selecting a knitting needle of a knitting machine by applying a voltage to a piezoelectric element of the piezoelectric body using a piezoelectric body as a finger actuating portion. The needle selecting device for a knitting machine according to claim 3, wherein