TW201839199A - Sinker cam for circular knitting machines - Google Patents

Abstract

A sinker cam for circular knitting machines, in particular for single jersey machines, having at least one cam part (3), disposed on a cam carrier (1), for controlling deployment and retraction movements of sinkers, wherein the cam part (3) in relation to the cam carrier (1) is adjustable in the movement direction of the sinkers, and wherein the cam part (3) is disposed directly on the cam carrier (1), and an adjustment part (4) by way of which the cam part (3) is adjustable in relation to the cam carrier (1) is provided.

Description

Sinker triangle for circular knitting machines

The invention relates to a sinker triangle for a circular knitting machine, especially for a single-sided flat knitting machine. The sinker has at least one triangular piece arranged on a triangular carrier to control the deployment and retracting movement of the sinker. The triangular part of the carrier is adjustable in the moving direction of the Shen Jiang tablet.

A sinker triangle in which a sinker triangle is fixedly assembled on a triangle carrier is known and widely used. However, these triangles are not suitable for machines that exceed the fine gauge of E44 because the triangles are not adjustable, but the triangles need to be adjusted to equalize manufacturing tolerances in the case of fine gauges.

In the case where the machine has a very fine needle distance, in order to fine-tune the position of the sinker triangles to equalize manufacturing tolerances, so far typically a sinker triangle segment has been used, which is fixedly screwed to the sinker triangle carrier and has a Adjuster for sinker triangle. The sinker triangle is here configured so as to be longitudinally displaceable on the lower side of the Shenjiang triangle.

However, the sinker triangle segment protrudes relatively far beyond the sinker triangle carrier and the sinker triangle, which obstructs the observation of the sinker and cylindrical needle of the machine. Furthermore, it is difficult to access the cylindrical needle. A further disadvantage of the known sinker triangle is that the thread fluff can only be blown off from the knitting to an insufficient extent. Villi tend to accumulate in the voids between Shen Jiangbian and Shen Jiangian triangle.

European Patent Application No. 1 559 820 A1 describes an adjustment mount for a triangular piece, wherein the adjustment mount is arranged in a triangular carrier, which allows longitudinal adjustment of the triangle by means of a separate adjustment element engaged on the underside of the triangular piece Pieces. However, this adjustment mount requires a specially designed triangular carrier to have clearance for the adjustment element.

It is therefore an object of the present invention to provide a sinker triangle which has an adjustable sinker triangle and avoids the aforementioned disadvantages.

The purpose is achieved by a sinker triangle for a circular knitting machine, especially for a single-sided flat knitting machine, which has at least one triangular piece arranged on a triangular carrier to control the deployment and retracting movement of the sinker, wherein The triangular piece related to the triangular carrier is adjustable in the moving direction of the Shen Jiang piece; the sinker triangle is characterized in that the triangular piece is directly disposed on the triangular carrier, and is characterized in that an adjusting piece is provided, which is integrated with the triangular piece or the triangle In the carrier, the triangular piece is adjustable in relation to the triangular carrier by the adjusting member.

The sinker triangle according to the invention eliminates sinker triangle segments. Instead, the triangular pieces are configured so as to be displaceable directly on the Shen Jiang tablet triangular carrier. The construction height of the triangle is therefore significantly lower than the case where the sinker triangle has triangular segments. There is no obstacle to the observation of the knitting place with sinkers and needles. Moreover, the thread pile can be easily removed from the knitting place, and the degree of deposition of the thread pile on the Shenjiang triangle is lighter than that of the known triangle. The adjustability required for the triangle here is maintained to the fullest extent. The sinker triangle according to the present invention further allows adjustment of the sinker triangle required when a specific pattern is to be knitted. In addition, the triangular pieces can also be constructed in two pieces to adjust to different patterns, that is, to have replaceable parts. In the case of a conversion pattern, only the replaceable part of the triangular piece, not all the parts, must be replaced, which results in significant material savings due to this.

For the preferred design of the triangle, the triangle is pressed on the triangle carrier, so that the spring is pre-tensioned, and by overcoming the friction between the surface of the triangle carrier and the underside of the triangle, the triangle is The adjustment piece is adjustable in relation to the triangular carrier. Because the spring is pre-tensioned, any improper displacement of the triangular piece on the triangular carrier is avoided, and the adjustability of the triangular piece by the adjusting piece is not impaired here.

For this purpose, the triangular piece may preferably be fixed to the triangular carrier by at least one screw with a disc spring, wherein the screw is guided to the triangular piece by an elongated bore or a bore having a diameter larger than the screw shank. in. The long boring hole allows the triangular piece to be moved by the adjusting piece. The screw can also be screwed into the triangular carrier so as to tilt in the adjustment direction of the triangular piece.

It is more convenient to integrate the adjustment piece in the triangular piece. The adjustment element may also be integrated in a triangular carrier. However, the advantage of being installed in a triangular piece is that the triangular piece can be used in all machine situations, regardless of the construction and distance of the machine.

Further, a common adjusting member may be provided for a plurality of triangular pieces.

The adjustment member may have a rotatable setting head connected to a spike, which engages in a spiral groove in the adjustment member or a triangular carrier. The adjusting element thus corresponds to a stitch length adjusting element, which has already been used in the case of known triangles. The setting head can be rotated by a socket wrench, and the sinker triangle can be displaced accordingly. The disc or ring provided with a ruler can be arranged on the setting head in a known manner, so as to facilitate the setting of the triangle position.

However, the adjusting member can also be arranged on the end side of the triangular member, wherein the triangular member is adjustable by a gear, a rack or a worm gear.

In order to prevent the triangular piece from being laterally displaced on the triangular carrier, a guide may be provided, which prevents the triangular piece from moving perpendicular to the longitudinal movement of the sinker. The cylindrical spikes or feathers engaged in the longitudinal grooves can be regarded as guides, for example, wherein the cylindrical spikes or feathers are preferably arranged on a triangular piece. The advantage of using a feather key here is that the feather key is pressed into the groove in a flat, not just a linear manner. However, the space for receiving and guiding the triangular piece can also be provided in the triangular carrier.

The triangular carrier can be constructed in the form of a ring or a ring segment, and at least one triangular piece can be adjusted in a radial direction relative to the triangular carrier. The sinker triangle constructed in this way is often in a circular knitting machine where the Shen Jiang tablets move perpendicular to the needle. However, the present invention (that is, arranging the triangle pieces directly on the triangle carrier, while eliminating the sinker triangle segments and maintaining the adjustability of the triangle pieces) can also be applied to other sinker triangles. Nor is it necessary to calibrate the sinker to a needle perpendicular to the relevant machine. The sinker triangle according to the present invention can also be used in a machine situation where the sinker is arranged at another angle in relation to the needle, or the sinker is arranged parallel to the needle.

The invention also relates to a circular knitting machine having a sinker triangle according to the invention. The machine may here preferably be a single jersey and knitting machine or a gauge with at least 28 stitches per inch. Machines having a very fine pitch of at least 44 needles per inch and having sinker triangles according to the invention are particularly advantageous.

The sinker triangle 100 according to the prior art shown in FIG. 1 has an annular triangle carrier 101, and a plurality of sinker triangle segments 102 (three are illustrated in an exemplary manner in FIG. 1) are arranged on the upper side of the triangle carrier 101. The sinker triangle segment 102 is fixedly screwed to the triangle carrier 101. A sinker triangle 103 having a control curve for the sinker 105 is arranged on the lower side of the sinker triangle segment 102, wherein the sinker triangle 103 for fine adjustment is arranged on the triangle segment 102 in each case, This is so as to be displaceable in the radial direction relative to the triangular carrier 101. In each case, an adjusting member 104 is provided which can be accessed from the upper side of the triangular segment 102 to adjust the sinker triangular piece 103. Because the triangular segment has a relatively large construction height, the observation of the Shenjiang piece 105 and the cylindrical needle is seriously damaged. Furthermore, the fiber villi can accumulate between the Shenjiang tablet 105 and the triangular segment 102.

A sinker triangle 10 according to a portion of the present invention is illustrated in FIG. 2. In the case of the triangle 10, the triangle segment has been eliminated, and the sinker triangle 3 is instead directly assembled on the ring triangle carrier 1. The sinker triangle 3 here is in each case abutted against the upper side of the triangular carrier 1 by a screw 6 with a disc spring 7. The screw 6 is guided through the triangular piece 3 via a long boring hole (see FIG. 3) or a boring hole 8 having a diameter larger than the shank of the screw, so that the triangular piece 3 can overcome the triangular piece 3 and the triangular carrier 1. The friction force is simultaneously displaced in the radial direction of the triangular carrier 1. In order to enable this radial adjustment, the adjusting member 4 is provided in the sinker triangle 3. The triangular piece is guided laterally by the guide 9 during the displacement movement.

As highlighted in FIG. 3, the adjusting member 4 has a setting head 4.1 having an opening 4.2 to receive a socket wrench (not shown). A ring 4.3 provided with a ruler is provided on the outer periphery of the setting head 4.1, so that the adjustment of the triangle 3 can be better checked. The setting head 4.1 interacts with a cylindrical spike 4.4 which is guided in the spiral groove 4.5 of the adjustment member 4. The lateral guide 9 is formed by a cylindrical spike 9.1 which is guided in a longitudinal groove 9.2 of the triangular carrier 1.

Fig. 4 shows a two-piece triangular piece 3 'consisting of a first piece 3.1' having an adjusting piece 4 'according to the present invention and a replaceable second piece 3.2'. This figure shows that the two 3.1 'and 3.2' are separated. The two pieces 3.1 ', 3.2' can be connected to each other by screws, or can be connected to a triangular carrier (not shown here). The trimming of the triangular piece 3 '(for example, to equalize manufacturing tolerances) can be performed by the adjusting piece 4'. However, if the transfer of the knitting machine to another pattern requires greater adjustment of the triangular piece 3 ', the replaceable piece 3.2' of the triangular piece 3 'may be replaced by another one. However, the first piece 3.1 'with the adjustment piece 4' is held on a triangular carrier.

1‧‧‧ triangle carrier

3‧‧‧ sinker triangle

3’‧‧‧ two-piece triangle

3.1’‧‧‧ the first

3.2’‧‧‧ the second

4‧‧‧Adjustment

4’‧‧‧adjustment

4.1‧‧‧ Setting Head

4.2‧‧‧ opening

4.3‧‧‧circle

4.4‧‧‧ cylindrical nail

4.5‧‧‧ spiral groove

6‧‧‧ Screw

7‧‧‧disc spring

8‧‧‧boring

9‧‧‧ Guide

9.1‧‧‧ cylindrical nail

9.2‧‧‧Vertical groove

10‧‧‧ sinker triangle

100‧‧‧ sinker triangle

101‧‧‧ triangle carrier

102‧‧‧ sinker triangle fragment

103‧‧‧ sinker triangle

104‧‧‧Adjustment

105‧‧‧ sinker

Hereinafter, a preferred exemplary specific aspect of the sinker triangle according to the present invention will be explained in more detail than the triangle according to the prior art with reference to the drawings.

In the drawings, in detail: FIG. 1 shows a view of a sinker triangle according to the prior art; FIG. 2 shows a plan view of a portion of a sinker triangle according to the present invention; FIG. 3 shows a section of the sinker triangle according to FIG. 2; and FIG. 4 Side view showing triangular piece of two-piece sinker.

Claims (13)

A sinker triangle for a circular knitting machine, especially for a single-sided flat knitting machine, which has at least one triangular piece (3) arranged on a triangular carrier (1) to control the deployment and shrinkage of the sinker (105). Back movement, wherein the triangle piece (3) related to the triangle carrier (1) is adjustable in the moving direction of the sinker (105); the sinker triangle is characterized in that the triangle piece (3) is directly It is arranged on the triangular carrier (1), and is characterized in that an adjusting member (4) is provided, which is integrated in the triangular member (3) or the triangular carrier (1), and the triangular member (3) is through the adjusting member. (4) And the triangle carrier (1) is adjustable. The sinker triangle according to item 1 of the scope of the patent application, wherein the triangle piece (3) is pressed on the triangle carrier (1), so as to pre-tension by the spring, and overcome the surface of the triangle carrier and the triangle The friction between the undersides of the pieces, the triangle piece (3) is adjustable with respect to the triangle carrier (1) by the adjusting piece (4). The sinker triangle according to item 2 of the patent application scope, wherein the triangle piece (3) is fixed to the triangle carrier (1) by at least one screw (6) having a disc spring (7), wherein the screw (6 ) Is guided in the triangular piece (3) by a long boring hole or a boring hole (8) having a diameter larger than the screw shank. According to the sinker triangle of item 3 of the patent application, the screw (6) is screwed into the triangle carrier (1), so as to be inclined in the direction of the adjustment path of the triangle (3). The sinker triangle according to any one of claims 1 to 4, wherein the adjusting member (4) is integrated in the triangle member (3). The sinker triangle according to any one of claims 1 to 4, wherein a common adjusting member (4) is provided for a plurality of triangular members (3). The sinker triangle according to any one of claims 1 to 4, wherein the adjusting member (4) has a rotatable setting head (4.1) which is connected to a pin (4.4), which pin (4.4) It is engaged in the spiral groove (4.5) in the adjusting member (4) or the triangular carrier (1). The sinker triangle according to any one of claims 1 to 4, wherein the adjusting member (4) is arranged in the end side of the triangle member (3), wherein the triangle member is driven by a gear, rack or worm gear And the triangular carrier is displaceable. The sinker triangle according to any one of claims 1 to 4, wherein a guide (9) is provided, which prevents the triangle piece (3) from moving perpendicular to the longitudinal movement of the sinker (105). . The sinker triangle according to item 9 of the application, wherein the guide (9) is formed by a cylindrical spike (9.1) or a feather key engaged in the longitudinal groove (9.2). The sinker triangle according to any one of claims 1 to 4, wherein the triangle carrier (1) is constructed in the form of a ring or a ring segment, and the at least one triangle (3) is on the triangle carrier (1). ) Is adjustable in the radial direction. A circular knitting machine having a sinker triangle according to any one of claims 1 to 11 of the scope of patent application. A circular knitting machine according to item 12 of the application, wherein the circular knitting machine has a gauge of at least 28 stitches per inch.